diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index ac3a51df4013..a992129773e2 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -37,6 +37,7 @@ jobs: name: PR env: CI_JOB_NAME: "${{ matrix.name }}" + CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse SCCACHE_BUCKET: rust-lang-ci-sccache2 TOOLSTATE_REPO: "https://github.com/rust-lang-nursery/rust-toolstate" CACHE_DOMAIN: ci-caches.rust-lang.org @@ -162,6 +163,7 @@ jobs: name: auto env: CI_JOB_NAME: "${{ matrix.name }}" + CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse SCCACHE_BUCKET: rust-lang-ci-sccache2 DEPLOY_BUCKET: rust-lang-ci2 TOOLSTATE_REPO: "https://github.com/rust-lang-nursery/rust-toolstate" @@ -584,6 +586,7 @@ jobs: name: try env: CI_JOB_NAME: "${{ matrix.name }}" + CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse SCCACHE_BUCKET: rust-lang-ci-sccache2 DEPLOY_BUCKET: rust-lang-ci2 TOOLSTATE_REPO: "https://github.com/rust-lang-nursery/rust-toolstate" diff --git a/.mailmap b/.mailmap index 8ed692989ccb..b814767786f2 100644 --- a/.mailmap +++ b/.mailmap @@ -166,6 +166,7 @@ Eduard-Mihai Burtescu Eduardo Bautista <=> Eduardo Bautista Eduardo Broto +Edward Shen Elliott Slaughter Elly Fong-Jones Eric Holk diff --git a/Cargo.lock b/Cargo.lock index 14758d0f07ef..b2948fb38959 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3567,6 +3567,7 @@ dependencies = [ "jemalloc-sys", "rustc_codegen_ssa", "rustc_driver", + "rustc_driver_impl", "rustc_smir", ] @@ -3688,7 +3689,6 @@ dependencies = [ name = "rustc_ast_lowering" version = "0.0.0" dependencies = [ - "rustc_arena", "rustc_ast", "rustc_ast_pretty", "rustc_data_structures", @@ -3697,7 +3697,6 @@ dependencies = [ "rustc_index", "rustc_macros", "rustc_middle", - "rustc_query_system", "rustc_session", "rustc_span", "rustc_target", @@ -3730,7 +3729,6 @@ name = "rustc_ast_pretty" version = "0.0.0" dependencies = [ "rustc_ast", - "rustc_parse_format", "rustc_span", ] @@ -3837,7 +3835,6 @@ dependencies = [ "rustc_metadata", "rustc_middle", "rustc_query_system", - "rustc_serialize", "rustc_session", "rustc_span", "rustc_symbol_mangling", @@ -3863,7 +3860,6 @@ dependencies = [ "rustc_arena", "rustc_ast", "rustc_attr", - "rustc_const_eval", "rustc_data_structures", "rustc_errors", "rustc_fs_util", @@ -3904,7 +3900,6 @@ dependencies = [ "rustc_macros", "rustc_middle", "rustc_mir_dataflow", - "rustc_query_system", "rustc_session", "rustc_span", "rustc_target", @@ -3946,6 +3941,13 @@ dependencies = [ [[package]] name = "rustc_driver" version = "0.0.0" +dependencies = [ + "rustc_driver_impl", +] + +[[package]] +name = "rustc_driver_impl" +version = "0.0.0" dependencies = [ "libc", "rustc_ast", @@ -4092,15 +4094,12 @@ dependencies = [ "rustc_data_structures", "rustc_errors", "rustc_feature", - "rustc_graphviz", "rustc_hir", - "rustc_hir_pretty", "rustc_index", "rustc_infer", "rustc_lint", "rustc_macros", "rustc_middle", - "rustc_serialize", "rustc_session", "rustc_span", "rustc_target", @@ -4187,7 +4186,6 @@ dependencies = [ "rustc_macros", "rustc_middle", "rustc_serialize", - "rustc_session", "rustc_span", "rustc_target", "smallvec", @@ -4230,7 +4228,6 @@ dependencies = [ "rustc_privacy", "rustc_query_impl", "rustc_resolve", - "rustc_serialize", "rustc_session", "rustc_span", "rustc_symbol_mangling", @@ -4396,7 +4393,6 @@ dependencies = [ "rustc_apfloat", "rustc_arena", "rustc_ast", - "rustc_attr", "rustc_data_structures", "rustc_errors", "rustc_hir", @@ -4428,7 +4424,6 @@ dependencies = [ "rustc_macros", "rustc_middle", "rustc_serialize", - "rustc_session", "rustc_span", "rustc_target", "smallvec", @@ -4559,7 +4554,6 @@ dependencies = [ "rustc_middle", "rustc_session", "rustc_span", - "rustc_trait_selection", "tracing", ] @@ -4580,7 +4574,6 @@ dependencies = [ "rustc_serialize", "rustc_session", "rustc_span", - "rustc_target", "thin-vec", "tracing", ] @@ -4781,7 +4774,6 @@ dependencies = [ "rustc_hir", "rustc_index", "rustc_infer", - "rustc_lint_defs", "rustc_macros", "rustc_middle", "rustc_parse_format", @@ -4803,7 +4795,6 @@ dependencies = [ "chalk-ir", "chalk-solve", "rustc_ast", - "rustc_attr", "rustc_data_structures", "rustc_hir", "rustc_index", diff --git a/compiler/rustc/Cargo.toml b/compiler/rustc/Cargo.toml index 27ee3dd2aeaf..41003ad83f31 100644 --- a/compiler/rustc/Cargo.toml +++ b/compiler/rustc/Cargo.toml @@ -5,6 +5,7 @@ edition = "2021" [dependencies] rustc_driver = { path = "../rustc_driver" } +rustc_driver_impl = { path = "../rustc_driver_impl" } # Make sure rustc_codegen_ssa ends up in the sysroot, because this # crate is intended to be used by codegen backends, which may not be in-tree. @@ -20,6 +21,6 @@ features = ['unprefixed_malloc_on_supported_platforms'] [features] jemalloc = ['jemalloc-sys'] -llvm = ['rustc_driver/llvm'] -max_level_info = ['rustc_driver/max_level_info'] -rustc_use_parallel_compiler = ['rustc_driver/rustc_use_parallel_compiler'] +llvm = ['rustc_driver_impl/llvm'] +max_level_info = ['rustc_driver_impl/max_level_info'] +rustc_use_parallel_compiler = ['rustc_driver_impl/rustc_use_parallel_compiler'] diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 5af6206c0bb8..0306cb5ce6ab 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -1439,21 +1439,12 @@ impl fmt::Debug for LayoutS { #[derive(Copy, Clone, PartialEq, Eq, Debug)] pub enum PointerKind { - /// Most general case, we know no restrictions to tell LLVM. - SharedMutable, - - /// `&T` where `T` contains no `UnsafeCell`, is `dereferenceable`, `noalias` and `readonly`. - Frozen, - - /// `&mut T` which is `dereferenceable` and `noalias` but not `readonly`. - UniqueBorrowed, - - /// `&mut !Unpin`, which is `dereferenceable` but neither `noalias` nor `readonly`. - UniqueBorrowedPinned, - - /// `Box`, which is `noalias` (even on return types, unlike the above) but neither `readonly` - /// nor `dereferenceable`. - UniqueOwned, + /// Shared reference. `frozen` indicates the absence of any `UnsafeCell`. + SharedRef { frozen: bool }, + /// Mutable reference. `unpin` indicates the absence of any pinned data. + MutableRef { unpin: bool }, + /// Box. `unpin` indicates the absence of any pinned data. + Box { unpin: bool }, } /// Note that this information is advisory only, and backends are free to ignore it. diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index 8ad3270c5103..f2258fecfeaf 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -1826,6 +1826,13 @@ pub enum LitKind { } impl LitKind { + pub fn str(&self) -> Option { + match *self { + LitKind::Str(s, _) => Some(s), + _ => None, + } + } + /// Returns `true` if this literal is a string. pub fn is_str(&self) -> bool { matches!(self, LitKind::Str(..)) diff --git a/compiler/rustc_ast/src/attr/mod.rs b/compiler/rustc_ast/src/attr/mod.rs index c6b6207b3186..cd60506dd807 100644 --- a/compiler/rustc_ast/src/attr/mod.rs +++ b/compiler/rustc_ast/src/attr/mod.rs @@ -140,17 +140,14 @@ impl Attribute { pub fn value_str(&self) -> Option { match &self.kind { - AttrKind::Normal(normal) => normal.item.meta_kind().and_then(|kind| kind.value_str()), + AttrKind::Normal(normal) => normal.item.value_str(), AttrKind::DocComment(..) => None, } } pub fn meta_item_list(&self) -> Option> { match &self.kind { - AttrKind::Normal(normal) => match normal.item.meta_kind() { - Some(MetaItemKind::List(list)) => Some(list), - _ => None, - }, + AttrKind::Normal(normal) => normal.item.meta_item_list(), AttrKind::DocComment(..) => None, } } @@ -216,6 +213,20 @@ impl MetaItem { } } +impl AttrArgsEq { + fn value_str(&self) -> Option { + match self { + AttrArgsEq::Ast(expr) => match expr.kind { + ExprKind::Lit(token_lit) => { + LitKind::from_token_lit(token_lit).ok().and_then(|lit| lit.str()) + } + _ => None, + }, + AttrArgsEq::Hir(lit) => lit.kind.str(), + } + } +} + impl AttrItem { pub fn span(&self) -> Span { self.args.span().map_or(self.path.span, |args_span| self.path.span.to(args_span)) @@ -228,6 +239,22 @@ impl AttrItem { pub fn meta_kind(&self) -> Option { MetaItemKind::from_attr_args(&self.args) } + + fn meta_item_list(&self) -> Option> { + match &self.args { + AttrArgs::Delimited(args) if args.delim == MacDelimiter::Parenthesis => { + MetaItemKind::list_from_tokens(args.tokens.clone()) + } + AttrArgs::Delimited(_) | AttrArgs::Eq(..) | AttrArgs::Empty => None, + } + } + + fn value_str(&self) -> Option { + match &self.args { + AttrArgs::Eq(_, args) => args.value_str(), + AttrArgs::Delimited(_) | AttrArgs::Empty => None, + } + } } impl Attribute { @@ -247,13 +274,11 @@ impl Attribute { /// * `#[doc = "doc"]` returns `Some(("doc", CommentKind::Line))`. /// * `#[doc(...)]` returns `None`. pub fn doc_str_and_comment_kind(&self) -> Option<(Symbol, CommentKind)> { - match self.kind { - AttrKind::DocComment(kind, data) => Some((data, kind)), - AttrKind::Normal(ref normal) if normal.item.path == sym::doc => normal - .item - .meta_kind() - .and_then(|kind| kind.value_str()) - .map(|data| (data, CommentKind::Line)), + match &self.kind { + AttrKind::DocComment(kind, data) => Some((*data, *kind)), + AttrKind::Normal(normal) if normal.item.path == sym::doc => { + normal.item.value_str().map(|s| (s, CommentKind::Line)) + } _ => None, } } @@ -265,9 +290,7 @@ impl Attribute { pub fn doc_str(&self) -> Option { match &self.kind { AttrKind::DocComment(.., data) => Some(*data), - AttrKind::Normal(normal) if normal.item.path == sym::doc => { - normal.item.meta_kind().and_then(|kind| kind.value_str()) - } + AttrKind::Normal(normal) if normal.item.path == sym::doc => normal.item.value_str(), _ => None, } } @@ -508,15 +531,12 @@ impl MetaItem { impl MetaItemKind { pub fn value_str(&self) -> Option { match self { - MetaItemKind::NameValue(v) => match v.kind { - LitKind::Str(s, _) => Some(s), - _ => None, - }, + MetaItemKind::NameValue(v) => v.kind.str(), _ => None, } } - fn list_from_tokens(tokens: TokenStream) -> Option { + fn list_from_tokens(tokens: TokenStream) -> Option> { let mut tokens = tokens.into_trees().peekable(); let mut result = Vec::new(); while tokens.peek().is_some() { @@ -527,7 +547,7 @@ impl MetaItemKind { _ => return None, } } - Some(MetaItemKind::List(result)) + Some(result) } fn name_value_from_tokens( @@ -551,7 +571,7 @@ impl MetaItemKind { dspan: _, delim: MacDelimiter::Parenthesis, tokens, - }) => MetaItemKind::list_from_tokens(tokens.clone()), + }) => MetaItemKind::list_from_tokens(tokens.clone()).map(MetaItemKind::List), AttrArgs::Delimited(..) => None, AttrArgs::Eq(_, AttrArgsEq::Ast(expr)) => match expr.kind { ExprKind::Lit(token_lit) => { @@ -573,7 +593,7 @@ impl MetaItemKind { Some(TokenTree::Delimited(_, Delimiter::Parenthesis, inner_tokens)) => { let inner_tokens = inner_tokens.clone(); tokens.next(); - MetaItemKind::list_from_tokens(inner_tokens) + MetaItemKind::list_from_tokens(inner_tokens).map(MetaItemKind::List) } Some(TokenTree::Delimited(..)) => None, Some(TokenTree::Token(Token { kind: token::Eq, .. }, _)) => { diff --git a/compiler/rustc_ast/src/tokenstream.rs b/compiler/rustc_ast/src/tokenstream.rs index fabd43a1618a..f0a6a5e07258 100644 --- a/compiler/rustc_ast/src/tokenstream.rs +++ b/compiler/rustc_ast/src/tokenstream.rs @@ -41,7 +41,8 @@ use std::{fmt, iter}; /// Nothing special happens to misnamed or misplaced `SubstNt`s. #[derive(Debug, Clone, PartialEq, Encodable, Decodable, HashStable_Generic)] pub enum TokenTree { - /// A single token. + /// A single token. Should never be `OpenDelim` or `CloseDelim`, because + /// delimiters are implicitly represented by `Delimited`. Token(Token, Spacing), /// A delimited sequence of token trees. Delimited(DelimSpan, Delimiter, TokenStream), @@ -388,12 +389,12 @@ impl TokenStream { self.0.len() } - pub fn trees(&self) -> CursorRef<'_> { - CursorRef::new(self) + pub fn trees(&self) -> RefTokenTreeCursor<'_> { + RefTokenTreeCursor::new(self) } - pub fn into_trees(self) -> Cursor { - Cursor::new(self) + pub fn into_trees(self) -> TokenTreeCursor { + TokenTreeCursor::new(self) } /// Compares two `TokenStream`s, checking equality without regarding span information. @@ -551,16 +552,17 @@ impl TokenStream { } } -/// By-reference iterator over a [`TokenStream`]. +/// By-reference iterator over a [`TokenStream`], that produces `&TokenTree` +/// items. #[derive(Clone)] -pub struct CursorRef<'t> { +pub struct RefTokenTreeCursor<'t> { stream: &'t TokenStream, index: usize, } -impl<'t> CursorRef<'t> { +impl<'t> RefTokenTreeCursor<'t> { fn new(stream: &'t TokenStream) -> Self { - CursorRef { stream, index: 0 } + RefTokenTreeCursor { stream, index: 0 } } pub fn look_ahead(&self, n: usize) -> Option<&TokenTree> { @@ -568,7 +570,7 @@ impl<'t> CursorRef<'t> { } } -impl<'t> Iterator for CursorRef<'t> { +impl<'t> Iterator for RefTokenTreeCursor<'t> { type Item = &'t TokenTree; fn next(&mut self) -> Option<&'t TokenTree> { @@ -579,15 +581,16 @@ impl<'t> Iterator for CursorRef<'t> { } } -/// Owning by-value iterator over a [`TokenStream`]. +/// Owning by-value iterator over a [`TokenStream`], that produces `TokenTree` +/// items. // FIXME: Many uses of this can be replaced with by-reference iterator to avoid clones. #[derive(Clone)] -pub struct Cursor { +pub struct TokenTreeCursor { pub stream: TokenStream, index: usize, } -impl Iterator for Cursor { +impl Iterator for TokenTreeCursor { type Item = TokenTree; fn next(&mut self) -> Option { @@ -598,9 +601,9 @@ impl Iterator for Cursor { } } -impl Cursor { +impl TokenTreeCursor { fn new(stream: TokenStream) -> Self { - Cursor { stream, index: 0 } + TokenTreeCursor { stream, index: 0 } } #[inline] @@ -614,6 +617,15 @@ impl Cursor { pub fn look_ahead(&self, n: usize) -> Option<&TokenTree> { self.stream.0.get(self.index + n) } + + // Replace the previously obtained token tree with `tts`, and rewind to + // just before them. + pub fn replace_prev_and_rewind(&mut self, tts: Vec) { + assert!(self.index > 0); + self.index -= 1; + let stream = Lrc::make_mut(&mut self.stream.0); + stream.splice(self.index..self.index + 1, tts); + } } #[derive(Debug, Copy, Clone, PartialEq, Encodable, Decodable, HashStable_Generic)] diff --git a/compiler/rustc_ast/src/visit.rs b/compiler/rustc_ast/src/visit.rs index e7b2e4b1cb4b..bdb1879ec201 100644 --- a/compiler/rustc_ast/src/visit.rs +++ b/compiler/rustc_ast/src/visit.rs @@ -403,8 +403,8 @@ pub fn walk_ty<'a, V: Visitor<'a>>(visitor: &mut V, typ: &'a Ty) { walk_list!(visitor, visit_lifetime, opt_lifetime, LifetimeCtxt::Ref); visitor.visit_ty(&mutable_type.ty) } - TyKind::Tup(tys) => { - walk_list!(visitor, visit_ty, tys); + TyKind::Tup(tuple_element_types) => { + walk_list!(visitor, visit_ty, tuple_element_types); } TyKind::BareFn(function_declaration) => { walk_list!(visitor, visit_generic_param, &function_declaration.generic_params); diff --git a/compiler/rustc_ast_lowering/Cargo.toml b/compiler/rustc_ast_lowering/Cargo.toml index 6a59b9e6151c..6e76c349a4a0 100644 --- a/compiler/rustc_ast_lowering/Cargo.toml +++ b/compiler/rustc_ast_lowering/Cargo.toml @@ -7,7 +7,6 @@ edition = "2021" doctest = false [dependencies] -rustc_arena = { path = "../rustc_arena" } rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } rustc_data_structures = { path = "../rustc_data_structures" } @@ -16,7 +15,6 @@ rustc_hir = { path = "../rustc_hir" } rustc_index = { path = "../rustc_index" } rustc_middle = { path = "../rustc_middle" } rustc_macros = { path = "../rustc_macros" } -rustc_query_system = { path = "../rustc_query_system" } rustc_session = { path = "../rustc_session" } rustc_span = { path = "../rustc_span" } rustc_target = { path = "../rustc_target" } diff --git a/compiler/rustc_ast_pretty/Cargo.toml b/compiler/rustc_ast_pretty/Cargo.toml index b4900dc39a8a..d1513c114fef 100644 --- a/compiler/rustc_ast_pretty/Cargo.toml +++ b/compiler/rustc_ast_pretty/Cargo.toml @@ -7,5 +7,4 @@ edition = "2021" [dependencies] rustc_ast = { path = "../rustc_ast" } -rustc_parse_format = { path = "../rustc_parse_format" } rustc_span = { path = "../rustc_span" } diff --git a/compiler/rustc_ast_pretty/src/pprust/state.rs b/compiler/rustc_ast_pretty/src/pprust/state.rs index fa8567eac609..d7767efa9841 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state.rs @@ -131,7 +131,7 @@ pub fn print_crate<'a>( // Currently, in Rust 2018 we don't have `extern crate std;` at the crate // root, so this is not needed, and actually breaks things. - if edition.rust_2015() { + if edition.is_rust_2015() { // `#![no_std]` let fake_attr = attr::mk_attr_word(g, ast::AttrStyle::Inner, sym::no_std, DUMMY_SP); s.print_attribute(&fake_attr); diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 50c0faf4597f..b0a8188e5e04 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -2645,6 +2645,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { operands, ) = rvalue { + let def_id = def_id.expect_local(); for operand in operands { let (Operand::Copy(assigned_from) | Operand::Move(assigned_from)) = operand else { continue; @@ -2667,7 +2668,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { // into a place then we should annotate the closure in // case it ends up being assigned into the return place. annotated_closure = - self.annotate_fn_sig(*def_id, substs.as_closure().sig()); + self.annotate_fn_sig(def_id, substs.as_closure().sig()); debug!( "annotate_argument_and_return_for_borrow: \ annotated_closure={:?} assigned_from_local={:?} \ diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index 8c579bac7e8e..a75ec87be4ca 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -817,6 +817,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { && let AggregateKind::Closure(def_id, _) | AggregateKind::Generator(def_id, _, _) = **kind { debug!("move_spans: def_id={:?} places={:?}", def_id, places); + let def_id = def_id.expect_local(); if let Some((args_span, generator_kind, capture_kind_span, path_span)) = self.closure_span(def_id, moved_place, places) { @@ -945,6 +946,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { box AggregateKind::Generator(def_id, _, _) => (def_id, true), _ => continue, }; + let def_id = def_id.expect_local(); debug!( "borrow_spans: def_id={:?} is_generator={:?} places={:?}", diff --git a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs index 40f518b33cfb..9f37b915b773 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs @@ -606,12 +606,63 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { } } Some((false, err_label_span, message)) => { - err.span_label( - err_label_span, - &format!( - "consider changing this binding's type to be: `{message}`" - ), - ); + struct BindingFinder { + span: Span, + hir_id: Option, + } + + impl<'tcx> Visitor<'tcx> for BindingFinder { + fn visit_stmt(&mut self, s: &'tcx hir::Stmt<'tcx>) { + if let hir::StmtKind::Local(local) = s.kind { + if local.pat.span == self.span { + self.hir_id = Some(local.hir_id); + } + } + hir::intravisit::walk_stmt(self, s); + } + } + let hir_map = self.infcx.tcx.hir(); + let def_id = self.body.source.def_id(); + let hir_id = hir_map.local_def_id_to_hir_id(def_id.expect_local()); + let node = hir_map.find(hir_id); + let hir_id = if let Some(hir::Node::Item(item)) = node + && let hir::ItemKind::Fn(.., body_id) = item.kind + { + let body = hir_map.body(body_id); + let mut v = BindingFinder { + span: err_label_span, + hir_id: None, + }; + v.visit_body(body); + v.hir_id + } else { + None + }; + if let Some(hir_id) = hir_id + && let Some(hir::Node::Local(local)) = hir_map.find(hir_id) + { + let (changing, span, sugg) = match local.ty { + Some(ty) => ("changing", ty.span, message), + None => ( + "specifying", + local.pat.span.shrink_to_hi(), + format!(": {message}"), + ), + }; + err.span_suggestion_verbose( + span, + &format!("consider {changing} this binding's type"), + sugg, + Applicability::HasPlaceholders, + ); + } else { + err.span_label( + err_label_span, + &format!( + "consider changing this binding's type to be: `{message}`" + ), + ); + } } None => {} } diff --git a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs index 87db08ef5b51..7901a5046aba 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs @@ -583,10 +583,12 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { let err = FnMutError { span: *span, ty_err: match output_ty.kind() { - ty::Closure(_, _) => FnMutReturnTypeErr::ReturnClosure { span: *span }, ty::Generator(def, ..) if self.infcx.tcx.generator_is_async(*def) => { FnMutReturnTypeErr::ReturnAsyncBlock { span: *span } } + _ if output_ty.contains_closure() => { + FnMutReturnTypeErr::ReturnClosure { span: *span } + } _ => FnMutReturnTypeErr::ReturnRef { span: *span }, }, }; @@ -997,7 +999,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { fn suggest_move_on_borrowing_closure(&self, diag: &mut Diagnostic) { let map = self.infcx.tcx.hir(); let body_id = map.body_owned_by(self.mir_def_id()); - let expr = &map.body(body_id).value; + let expr = &map.body(body_id).value.peel_blocks(); let mut closure_span = None::; match expr.kind { hir::ExprKind::MethodCall(.., args, _) => { @@ -1012,20 +1014,14 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { } } } - hir::ExprKind::Block(blk, _) => { - if let Some(expr) = blk.expr { - // only when the block is a closure - if let hir::ExprKind::Closure(hir::Closure { - capture_clause: hir::CaptureBy::Ref, - body, - .. - }) = expr.kind - { - let body = map.body(*body); - if !matches!(body.generator_kind, Some(hir::GeneratorKind::Async(..))) { - closure_span = Some(expr.span.shrink_to_lo()); - } - } + hir::ExprKind::Closure(hir::Closure { + capture_clause: hir::CaptureBy::Ref, + body, + .. + }) => { + let body = map.body(*body); + if !matches!(body.generator_kind, Some(hir::GeneratorKind::Async(..))) { + closure_span = Some(expr.span.shrink_to_lo()); } } _ => {} diff --git a/compiler/rustc_borrowck/src/lib.rs b/compiler/rustc_borrowck/src/lib.rs index bc81abe4005c..98103af779d8 100644 --- a/compiler/rustc_borrowck/src/lib.rs +++ b/compiler/rustc_borrowck/src/lib.rs @@ -1278,6 +1278,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { // in order to populate our used_mut set. match **aggregate_kind { AggregateKind::Closure(def_id, _) | AggregateKind::Generator(def_id, _, _) => { + let def_id = def_id.expect_local(); let BorrowCheckResult { used_mut_upvars, .. } = self.infcx.tcx.mir_borrowck(def_id); debug!("{:?} used_mut_upvars={:?}", def_id, used_mut_upvars); diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 2605a1491fb3..5b52846562f8 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -1484,7 +1484,10 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { } } None => { - if !sig.output().is_privately_uninhabited(self.tcx(), self.param_env) { + // The signature in this call can reference region variables, + // so erase them before calling a query. + let output_ty = self.tcx().erase_regions(sig.output()); + if !output_ty.is_privately_uninhabited(self.tcx(), self.param_env) { span_mirbug!(self, term, "call to converging function {:?} w/o dest", sig); } } @@ -2533,7 +2536,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { // clauses on the struct. AggregateKind::Closure(def_id, substs) | AggregateKind::Generator(def_id, substs, _) => { - (def_id.to_def_id(), self.prove_closure_bounds(tcx, def_id, substs, location)) + (def_id, self.prove_closure_bounds(tcx, def_id.expect_local(), substs, location)) } AggregateKind::Array(_) | AggregateKind::Tuple => { diff --git a/compiler/rustc_builtin_macros/src/deriving/debug.rs b/compiler/rustc_builtin_macros/src/deriving/debug.rs index 897048f64211..74e2597830e7 100644 --- a/compiler/rustc_builtin_macros/src/deriving/debug.rs +++ b/compiler/rustc_builtin_macros/src/deriving/debug.rs @@ -76,6 +76,21 @@ fn show_substructure(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_> // The number of fields that can be handled without an array. const CUTOFF: usize = 5; + fn expr_for_field( + cx: &ExtCtxt<'_>, + field: &FieldInfo, + index: usize, + len: usize, + ) -> ast::ptr::P { + if index < len - 1 { + field.self_expr.clone() + } else { + // Unsized types need an extra indirection, but only the last field + // may be unsized. + cx.expr_addr_of(field.span, field.self_expr.clone()) + } + } + if fields.is_empty() { // Special case for no fields. let fn_path_write_str = cx.std_path(&[sym::fmt, sym::Formatter, sym::write_str]); @@ -98,8 +113,8 @@ fn show_substructure(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_> let name = cx.expr_str(field.span, field.name.unwrap().name); args.push(name); } - // Use an extra indirection to make sure this works for unsized types. - let field = cx.expr_addr_of(field.span, field.self_expr.clone()); + + let field = expr_for_field(cx, field, i, fields.len()); args.push(field); } let expr = cx.expr_call_global(span, fn_path_debug, args); @@ -109,13 +124,13 @@ fn show_substructure(cx: &mut ExtCtxt<'_>, span: Span, substr: &Substructure<'_> let mut name_exprs = Vec::with_capacity(fields.len()); let mut value_exprs = Vec::with_capacity(fields.len()); - for field in fields { + for i in 0..fields.len() { + let field = &fields[i]; if is_struct { name_exprs.push(cx.expr_str(field.span, field.name.unwrap().name)); } - // Use an extra indirection to make sure this works for unsized types. - let field = cx.expr_addr_of(field.span, field.self_expr.clone()); + let field = expr_for_field(cx, field, i, fields.len()); value_exprs.push(field); } diff --git a/compiler/rustc_codegen_llvm/Cargo.toml b/compiler/rustc_codegen_llvm/Cargo.toml index 9c1bcd431ec4..773c0ebbe59d 100644 --- a/compiler/rustc_codegen_llvm/Cargo.toml +++ b/compiler/rustc_codegen_llvm/Cargo.toml @@ -30,7 +30,6 @@ rustc_macros = { path = "../rustc_macros" } rustc_metadata = { path = "../rustc_metadata" } rustc_query_system = { path = "../rustc_query_system" } rustc_session = { path = "../rustc_session" } -rustc_serialize = { path = "../rustc_serialize" } rustc_symbol_mangling = { path = "../rustc_symbol_mangling" } rustc_target = { path = "../rustc_target" } smallvec = { version = "1.8.1", features = ["union", "may_dangle"] } diff --git a/compiler/rustc_codegen_ssa/Cargo.toml b/compiler/rustc_codegen_ssa/Cargo.toml index 0d2d2ec68a23..c55991e00d3a 100644 --- a/compiler/rustc_codegen_ssa/Cargo.toml +++ b/compiler/rustc_codegen_ssa/Cargo.toml @@ -41,7 +41,6 @@ rustc_metadata = { path = "../rustc_metadata" } rustc_query_system = { path = "../rustc_query_system" } rustc_target = { path = "../rustc_target" } rustc_session = { path = "../rustc_session" } -rustc_const_eval = { path = "../rustc_const_eval" } [dependencies.object] version = "0.30.1" diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index 4ac7bea03ebc..6fe8527ada62 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -270,10 +270,9 @@ pub fn each_linked_rlib( /// Create an 'rlib'. /// -/// An rlib in its current incarnation is essentially a renamed .a file. The rlib primarily contains -/// the object file of the crate, but it also contains all of the object files from native -/// libraries. This is done by unzipping native libraries and inserting all of the contents into -/// this archive. +/// An rlib in its current incarnation is essentially a renamed .a file (with "dummy" object files). +/// The rlib primarily contains the object file of the crate, but it also some of the object files +/// from native libraries. fn link_rlib<'a>( sess: &'a Session, archive_builder_builder: &dyn ArchiveBuilderBuilder, @@ -347,44 +346,23 @@ fn link_rlib<'a>( // loaded from the libraries found here and then encode that into the // metadata of the rlib we're generating somehow. for lib in codegen_results.crate_info.used_libraries.iter() { - match lib.kind { - NativeLibKind::Static { bundle: None | Some(true), whole_archive: Some(true) } - if flavor == RlibFlavor::Normal && sess.opts.unstable_opts.packed_bundled_libs => {} - NativeLibKind::Static { bundle: None | Some(true), whole_archive: Some(true) } - if flavor == RlibFlavor::Normal => - { - // Don't allow mixing +bundle with +whole_archive since an rlib may contain - // multiple native libs, some of which are +whole-archive and some of which are - // -whole-archive and it isn't clear how we can currently handle such a - // situation correctly. - // See https://github.com/rust-lang/rust/issues/88085#issuecomment-901050897 - sess.emit_err(errors::IncompatibleLinkingModifiers); - } - NativeLibKind::Static { bundle: None | Some(true), .. } => {} - NativeLibKind::Static { bundle: Some(false), .. } - | NativeLibKind::Dylib { .. } - | NativeLibKind::Framework { .. } - | NativeLibKind::RawDylib - | NativeLibKind::LinkArg - | NativeLibKind::Unspecified => continue, + let NativeLibKind::Static { bundle: None | Some(true), whole_archive } = lib.kind else { + continue; + }; + if whole_archive == Some(true) && !codegen_results.crate_info.feature_packed_bundled_libs { + sess.emit_err(errors::IncompatibleLinkingModifiers); } - if let Some(name) = lib.name { - let location = + if flavor == RlibFlavor::Normal && let Some(filename) = lib.filename { + let path = find_native_static_library(filename.as_str(), true, &lib_search_paths, sess); + let src = read(path).map_err(|e| sess.emit_fatal(errors::ReadFileError {message: e }))?; + let (data, _) = create_wrapper_file(sess, b".bundled_lib".to_vec(), &src); + let wrapper_file = emit_wrapper_file(sess, &data, tmpdir, filename.as_str()); + packed_bundled_libs.push(wrapper_file); + } else if let Some(name) = lib.name { + let path = find_native_static_library(name.as_str(), lib.verbatim, &lib_search_paths, sess); - if sess.opts.unstable_opts.packed_bundled_libs && flavor == RlibFlavor::Normal { - let filename = lib.filename.unwrap(); - let lib_path = - find_native_static_library(filename.as_str(), true, &lib_search_paths, sess); - let src = read(lib_path) - .map_err(|e| sess.emit_fatal(errors::ReadFileError { message: e }))?; - let (data, _) = create_wrapper_file(sess, b".bundled_lib".to_vec(), &src); - let wrapper_file = emit_wrapper_file(sess, &data, tmpdir, filename.as_str()); - packed_bundled_libs.push(wrapper_file); - continue; - } - ab.add_archive(&location, Box::new(|_| false)).unwrap_or_else(|error| { - sess.emit_fatal(errors::AddNativeLibrary { library_path: location, error }); - }); + ab.add_archive(&path, Box::new(|_| false)).unwrap_or_else(|error| { + sess.emit_fatal(errors::AddNativeLibrary { library_path: path, error })}); } } @@ -516,36 +494,14 @@ fn link_staticlib<'a>( &codegen_results.crate_info, Some(CrateType::Staticlib), &mut |cnum, path| { - let name = codegen_results.crate_info.crate_name[&cnum]; - let native_libs = &codegen_results.crate_info.native_libraries[&cnum]; - - // Here when we include the rlib into our staticlib we need to make a - // decision whether to include the extra object files along the way. - // These extra object files come from statically included native - // libraries, but they may be cfg'd away with #[link(cfg(..))]. - // - // This unstable feature, though, only needs liblibc to work. The only - // use case there is where musl is statically included in liblibc.rlib, - // so if we don't want the included version we just need to skip it. As - // a result the logic here is that if *any* linked library is cfg'd away - // we just skip all object files. - // - // Clearly this is not sufficient for a general purpose feature, and - // we'd want to read from the library's metadata to determine which - // object files come from where and selectively skip them. - let skip_object_files = native_libs.iter().any(|lib| { - matches!(lib.kind, NativeLibKind::Static { bundle: None | Some(true), .. }) - && !relevant_lib(sess, lib) - }); - let lto = are_upstream_rust_objects_already_included(sess) && !ignored_for_lto(sess, &codegen_results.crate_info, cnum); - // Ignoring obj file starting with the crate name - // as simple comparison is not enough - there - // might be also an extra name suffix - let obj_start = name.as_str().to_owned(); + let native_libs = codegen_results.crate_info.native_libraries[&cnum].iter(); + let relevant = native_libs.clone().filter(|lib| relevant_lib(sess, &lib)); + let relevant_libs: FxHashSet<_> = relevant.filter_map(|lib| lib.filename).collect(); + let bundled_libs: FxHashSet<_> = native_libs.filter_map(|lib| lib.filename).collect(); ab.add_archive( path, Box::new(move |fname: &str| { @@ -559,20 +515,25 @@ fn link_staticlib<'a>( return true; } - // Otherwise if this is *not* a rust object and we're skipping - // objects then skip this file - if skip_object_files - && (!fname.starts_with(&obj_start) || !fname.ends_with(".o")) - { + // Skip objects for bundled libs. + if bundled_libs.contains(&Symbol::intern(fname)) { return true; } - // ok, don't skip this false }), ) .unwrap(); + archive_builder_builder + .extract_bundled_libs(path, tempdir.as_ref(), &relevant_libs) + .unwrap_or_else(|e| sess.emit_fatal(e)); + for filename in relevant_libs { + let joined = tempdir.as_ref().join(filename.as_str()); + let path = joined.as_path(); + ab.add_archive(path, Box::new(|_| false)).unwrap(); + } + all_native_libs .extend(codegen_results.crate_info.native_libraries[&cnum].iter().cloned()); }, @@ -2590,18 +2551,8 @@ fn add_static_crate<'a>( cmd.link_rlib(&fix_windows_verbatim_for_gcc(path)); }; - // See the comment above in `link_staticlib` and `link_rlib` for why if - // there's a static library that's not relevant we skip all object - // files. - let native_libs = &codegen_results.crate_info.native_libraries[&cnum]; - let skip_native = native_libs.iter().any(|lib| { - matches!(lib.kind, NativeLibKind::Static { bundle: None | Some(true), .. }) - && !relevant_lib(sess, lib) - }); - - if (!are_upstream_rust_objects_already_included(sess) - || ignored_for_lto(sess, &codegen_results.crate_info, cnum)) - && !skip_native + if !are_upstream_rust_objects_already_included(sess) + || ignored_for_lto(sess, &codegen_results.crate_info, cnum) { link_upstream(cratepath); return; @@ -2632,17 +2583,13 @@ fn add_static_crate<'a>( let is_rust_object = canonical.starts_with(&canonical_name) && looks_like_rust_object_file(&f); - // If we've been requested to skip all native object files - // (those not generated by the rust compiler) then we can skip - // this file. See above for why we may want to do this. - let skip_because_cfg_say_so = skip_native && !is_rust_object; - // If we're performing LTO and this is a rust-generated object // file, then we don't need the object file as it's part of the // LTO module. Note that `#![no_builtins]` is excluded from LTO, // though, so we let that object file slide. - let skip_because_lto = - upstream_rust_objects_already_included && is_rust_object && is_builtins; + if upstream_rust_objects_already_included && is_rust_object && is_builtins { + return true; + } // We skip native libraries because: // 1. This native libraries won't be used from the generated rlib, @@ -2653,10 +2600,6 @@ fn add_static_crate<'a>( return true; } - if skip_because_cfg_say_so || skip_because_lto { - return true; - } - false }), ) { diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index 02b502d948c2..de2727c8a5dc 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -858,6 +858,7 @@ impl CrateInfo { dependency_formats: tcx.dependency_formats(()).clone(), windows_subsystem, natvis_debugger_visualizers: Default::default(), + feature_packed_bundled_libs: tcx.features().packed_bundled_libs, }; let crates = tcx.crates(()); diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index 9831e98fe371..3ebbb2cbdfb8 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -319,74 +319,62 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: DefId) -> CodegenFnAttrs { } } } else if attr.has_name(sym::instruction_set) { - codegen_fn_attrs.instruction_set = match attr.meta_kind() { - Some(MetaItemKind::List(ref items)) => match items.as_slice() { - [NestedMetaItem::MetaItem(set)] => { - let segments = - set.path.segments.iter().map(|x| x.ident.name).collect::>(); - match segments.as_slice() { - [sym::arm, sym::a32] | [sym::arm, sym::t32] => { - if !tcx.sess.target.has_thumb_interworking { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0779, - "target does not support `#[instruction_set]`" - ) - .emit(); - None - } else if segments[1] == sym::a32 { - Some(InstructionSetAttr::ArmA32) - } else if segments[1] == sym::t32 { - Some(InstructionSetAttr::ArmT32) - } else { - unreachable!() - } - } - _ => { + codegen_fn_attrs.instruction_set = attr.meta_item_list().and_then(|l| match &l[..] { + [NestedMetaItem::MetaItem(set)] => { + let segments = + set.path.segments.iter().map(|x| x.ident.name).collect::>(); + match segments.as_slice() { + [sym::arm, sym::a32] | [sym::arm, sym::t32] => { + if !tcx.sess.target.has_thumb_interworking { struct_span_err!( tcx.sess.diagnostic(), attr.span, E0779, - "invalid instruction set specified", + "target does not support `#[instruction_set]`" ) .emit(); None + } else if segments[1] == sym::a32 { + Some(InstructionSetAttr::ArmA32) + } else if segments[1] == sym::t32 { + Some(InstructionSetAttr::ArmT32) + } else { + unreachable!() } } + _ => { + struct_span_err!( + tcx.sess.diagnostic(), + attr.span, + E0779, + "invalid instruction set specified", + ) + .emit(); + None + } } - [] => { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0778, - "`#[instruction_set]` requires an argument" - ) - .emit(); - None - } - _ => { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0779, - "cannot specify more than one instruction set" - ) - .emit(); - None - } - }, - _ => { + } + [] => { struct_span_err!( tcx.sess.diagnostic(), attr.span, E0778, - "must specify an instruction set" + "`#[instruction_set]` requires an argument" ) .emit(); None } - }; + _ => { + struct_span_err!( + tcx.sess.diagnostic(), + attr.span, + E0779, + "cannot specify more than one instruction set" + ) + .emit(); + None + } + }) } else if attr.has_name(sym::repr) { codegen_fn_attrs.alignment = match attr.meta_item_list() { Some(items) => match items.as_slice() { diff --git a/compiler/rustc_codegen_ssa/src/lib.rs b/compiler/rustc_codegen_ssa/src/lib.rs index 0e6596d4ba78..d5530c476807 100644 --- a/compiler/rustc_codegen_ssa/src/lib.rs +++ b/compiler/rustc_codegen_ssa/src/lib.rs @@ -159,6 +159,7 @@ pub struct CrateInfo { pub dependency_formats: Lrc, pub windows_subsystem: Option, pub natvis_debugger_visualizers: BTreeSet, + pub feature_packed_bundled_libs: bool, // unstable feature flag. } #[derive(Encodable, Decodable)] diff --git a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs index 23196c8cbaea..35948e50f48d 100644 --- a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs +++ b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs @@ -13,6 +13,7 @@ use rustc_middle::ty::cast::{CastTy, IntTy}; use rustc_middle::ty::layout::{HasTyCtxt, LayoutOf}; use rustc_middle::ty::{self, adjustment::PointerCast, Instance, Ty, TyCtxt}; use rustc_span::source_map::{Span, DUMMY_SP}; +use rustc_target::abi::VariantIdx; impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { #[instrument(level = "trace", skip(self, bx))] @@ -106,17 +107,16 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { } mir::Rvalue::Aggregate(ref kind, ref operands) => { - let (dest, active_field_index) = match **kind { - mir::AggregateKind::Adt(adt_did, variant_index, _, _, active_field_index) => { - dest.codegen_set_discr(bx, variant_index); - if bx.tcx().adt_def(adt_did).is_enum() { - (dest.project_downcast(bx, variant_index), active_field_index) - } else { - (dest, active_field_index) - } + let (variant_index, variant_dest, active_field_index) = match **kind { + mir::AggregateKind::Adt(_, variant_index, _, _, active_field_index) => { + let variant_dest = dest.project_downcast(bx, variant_index); + (variant_index, variant_dest, active_field_index) } - _ => (dest, None), + _ => (VariantIdx::from_u32(0), dest, None), }; + if active_field_index.is_some() { + assert_eq!(operands.len(), 1); + } for (i, operand) in operands.iter().enumerate() { let op = self.codegen_operand(bx, operand); // Do not generate stores and GEPis for zero-sized fields. @@ -124,13 +124,14 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { let field_index = active_field_index.unwrap_or(i); let field = if let mir::AggregateKind::Array(_) = **kind { let llindex = bx.cx().const_usize(field_index as u64); - dest.project_index(bx, llindex) + variant_dest.project_index(bx, llindex) } else { - dest.project_field(bx, field_index) + variant_dest.project_field(bx, field_index) }; op.val.store(bx, field); } } + dest.codegen_set_discr(bx, variant_index); } _ => { diff --git a/compiler/rustc_const_eval/Cargo.toml b/compiler/rustc_const_eval/Cargo.toml index 51489e293606..98ac36c1ced7 100644 --- a/compiler/rustc_const_eval/Cargo.toml +++ b/compiler/rustc_const_eval/Cargo.toml @@ -19,7 +19,6 @@ rustc_infer = { path = "../rustc_infer" } rustc_macros = { path = "../rustc_macros" } rustc_middle = { path = "../rustc_middle" } rustc_mir_dataflow = { path = "../rustc_mir_dataflow" } -rustc_query_system = { path = "../rustc_query_system" } rustc_session = { path = "../rustc_session" } rustc_target = { path = "../rustc_target" } rustc_trait_selection = { path = "../rustc_trait_selection" } diff --git a/compiler/rustc_const_eval/src/interpret/discriminant.rs b/compiler/rustc_const_eval/src/interpret/discriminant.rs new file mode 100644 index 000000000000..557e721249d7 --- /dev/null +++ b/compiler/rustc_const_eval/src/interpret/discriminant.rs @@ -0,0 +1,238 @@ +//! Functions for reading and writing discriminants of multi-variant layouts (enums and generators). + +use rustc_middle::ty::layout::{LayoutOf, PrimitiveExt}; +use rustc_middle::{mir, ty}; +use rustc_target::abi::{self, TagEncoding}; +use rustc_target::abi::{VariantIdx, Variants}; + +use super::{ImmTy, InterpCx, InterpResult, Machine, OpTy, PlaceTy, Scalar}; + +impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { + /// Writes the discriminant of the given variant. + #[instrument(skip(self), level = "trace")] + pub fn write_discriminant( + &mut self, + variant_index: VariantIdx, + dest: &PlaceTy<'tcx, M::Provenance>, + ) -> InterpResult<'tcx> { + // Layout computation excludes uninhabited variants from consideration + // therefore there's no way to represent those variants in the given layout. + // Essentially, uninhabited variants do not have a tag that corresponds to their + // discriminant, so we cannot do anything here. + // When evaluating we will always error before even getting here, but ConstProp 'executes' + // dead code, so we cannot ICE here. + if dest.layout.for_variant(self, variant_index).abi.is_uninhabited() { + throw_ub!(UninhabitedEnumVariantWritten) + } + + match dest.layout.variants { + abi::Variants::Single { index } => { + assert_eq!(index, variant_index); + } + abi::Variants::Multiple { + tag_encoding: TagEncoding::Direct, + tag: tag_layout, + tag_field, + .. + } => { + // No need to validate that the discriminant here because the + // `TyAndLayout::for_variant()` call earlier already checks the variant is valid. + + let discr_val = + dest.layout.ty.discriminant_for_variant(*self.tcx, variant_index).unwrap().val; + + // raw discriminants for enums are isize or bigger during + // their computation, but the in-memory tag is the smallest possible + // representation + let size = tag_layout.size(self); + let tag_val = size.truncate(discr_val); + + let tag_dest = self.place_field(dest, tag_field)?; + self.write_scalar(Scalar::from_uint(tag_val, size), &tag_dest)?; + } + abi::Variants::Multiple { + tag_encoding: + TagEncoding::Niche { untagged_variant, ref niche_variants, niche_start }, + tag: tag_layout, + tag_field, + .. + } => { + // No need to validate that the discriminant here because the + // `TyAndLayout::for_variant()` call earlier already checks the variant is valid. + + if variant_index != untagged_variant { + let variants_start = niche_variants.start().as_u32(); + let variant_index_relative = variant_index + .as_u32() + .checked_sub(variants_start) + .expect("overflow computing relative variant idx"); + // We need to use machine arithmetic when taking into account `niche_start`: + // tag_val = variant_index_relative + niche_start_val + let tag_layout = self.layout_of(tag_layout.primitive().to_int_ty(*self.tcx))?; + let niche_start_val = ImmTy::from_uint(niche_start, tag_layout); + let variant_index_relative_val = + ImmTy::from_uint(variant_index_relative, tag_layout); + let tag_val = self.binary_op( + mir::BinOp::Add, + &variant_index_relative_val, + &niche_start_val, + )?; + // Write result. + let niche_dest = self.place_field(dest, tag_field)?; + self.write_immediate(*tag_val, &niche_dest)?; + } + } + } + + Ok(()) + } + + /// Read discriminant, return the runtime value as well as the variant index. + /// Can also legally be called on non-enums (e.g. through the discriminant_value intrinsic)! + #[instrument(skip(self), level = "trace")] + pub fn read_discriminant( + &self, + op: &OpTy<'tcx, M::Provenance>, + ) -> InterpResult<'tcx, (Scalar, VariantIdx)> { + trace!("read_discriminant_value {:#?}", op.layout); + // Get type and layout of the discriminant. + let discr_layout = self.layout_of(op.layout.ty.discriminant_ty(*self.tcx))?; + trace!("discriminant type: {:?}", discr_layout.ty); + + // We use "discriminant" to refer to the value associated with a particular enum variant. + // This is not to be confused with its "variant index", which is just determining its position in the + // declared list of variants -- they can differ with explicitly assigned discriminants. + // We use "tag" to refer to how the discriminant is encoded in memory, which can be either + // straight-forward (`TagEncoding::Direct`) or with a niche (`TagEncoding::Niche`). + let (tag_scalar_layout, tag_encoding, tag_field) = match op.layout.variants { + Variants::Single { index } => { + let discr = match op.layout.ty.discriminant_for_variant(*self.tcx, index) { + Some(discr) => { + // This type actually has discriminants. + assert_eq!(discr.ty, discr_layout.ty); + Scalar::from_uint(discr.val, discr_layout.size) + } + None => { + // On a type without actual discriminants, variant is 0. + assert_eq!(index.as_u32(), 0); + Scalar::from_uint(index.as_u32(), discr_layout.size) + } + }; + return Ok((discr, index)); + } + Variants::Multiple { tag, ref tag_encoding, tag_field, .. } => { + (tag, tag_encoding, tag_field) + } + }; + + // There are *three* layouts that come into play here: + // - The discriminant has a type for typechecking. This is `discr_layout`, and is used for + // the `Scalar` we return. + // - The tag (encoded discriminant) has layout `tag_layout`. This is always an integer type, + // and used to interpret the value we read from the tag field. + // For the return value, a cast to `discr_layout` is performed. + // - The field storing the tag has a layout, which is very similar to `tag_layout` but + // may be a pointer. This is `tag_val.layout`; we just use it for sanity checks. + + // Get layout for tag. + let tag_layout = self.layout_of(tag_scalar_layout.primitive().to_int_ty(*self.tcx))?; + + // Read tag and sanity-check `tag_layout`. + let tag_val = self.read_immediate(&self.operand_field(op, tag_field)?)?; + assert_eq!(tag_layout.size, tag_val.layout.size); + assert_eq!(tag_layout.abi.is_signed(), tag_val.layout.abi.is_signed()); + trace!("tag value: {}", tag_val); + + // Figure out which discriminant and variant this corresponds to. + Ok(match *tag_encoding { + TagEncoding::Direct => { + let scalar = tag_val.to_scalar(); + // Generate a specific error if `tag_val` is not an integer. + // (`tag_bits` itself is only used for error messages below.) + let tag_bits = scalar + .try_to_int() + .map_err(|dbg_val| err_ub!(InvalidTag(dbg_val)))? + .assert_bits(tag_layout.size); + // Cast bits from tag layout to discriminant layout. + // After the checks we did above, this cannot fail, as + // discriminants are int-like. + let discr_val = + self.cast_from_int_like(scalar, tag_val.layout, discr_layout.ty).unwrap(); + let discr_bits = discr_val.assert_bits(discr_layout.size); + // Convert discriminant to variant index, and catch invalid discriminants. + let index = match *op.layout.ty.kind() { + ty::Adt(adt, _) => { + adt.discriminants(*self.tcx).find(|(_, var)| var.val == discr_bits) + } + ty::Generator(def_id, substs, _) => { + let substs = substs.as_generator(); + substs + .discriminants(def_id, *self.tcx) + .find(|(_, var)| var.val == discr_bits) + } + _ => span_bug!(self.cur_span(), "tagged layout for non-adt non-generator"), + } + .ok_or_else(|| err_ub!(InvalidTag(Scalar::from_uint(tag_bits, tag_layout.size))))?; + // Return the cast value, and the index. + (discr_val, index.0) + } + TagEncoding::Niche { untagged_variant, ref niche_variants, niche_start } => { + let tag_val = tag_val.to_scalar(); + // Compute the variant this niche value/"tag" corresponds to. With niche layout, + // discriminant (encoded in niche/tag) and variant index are the same. + let variants_start = niche_variants.start().as_u32(); + let variants_end = niche_variants.end().as_u32(); + let variant = match tag_val.try_to_int() { + Err(dbg_val) => { + // So this is a pointer then, and casting to an int failed. + // Can only happen during CTFE. + // The niche must be just 0, and the ptr not null, then we know this is + // okay. Everything else, we conservatively reject. + let ptr_valid = niche_start == 0 + && variants_start == variants_end + && !self.scalar_may_be_null(tag_val)?; + if !ptr_valid { + throw_ub!(InvalidTag(dbg_val)) + } + untagged_variant + } + Ok(tag_bits) => { + let tag_bits = tag_bits.assert_bits(tag_layout.size); + // We need to use machine arithmetic to get the relative variant idx: + // variant_index_relative = tag_val - niche_start_val + let tag_val = ImmTy::from_uint(tag_bits, tag_layout); + let niche_start_val = ImmTy::from_uint(niche_start, tag_layout); + let variant_index_relative_val = + self.binary_op(mir::BinOp::Sub, &tag_val, &niche_start_val)?; + let variant_index_relative = + variant_index_relative_val.to_scalar().assert_bits(tag_val.layout.size); + // Check if this is in the range that indicates an actual discriminant. + if variant_index_relative <= u128::from(variants_end - variants_start) { + let variant_index_relative = u32::try_from(variant_index_relative) + .expect("we checked that this fits into a u32"); + // Then computing the absolute variant idx should not overflow any more. + let variant_index = variants_start + .checked_add(variant_index_relative) + .expect("overflow computing absolute variant idx"); + let variants_len = op + .layout + .ty + .ty_adt_def() + .expect("tagged layout for non adt") + .variants() + .len(); + assert!(usize::try_from(variant_index).unwrap() < variants_len); + VariantIdx::from_u32(variant_index) + } else { + untagged_variant + } + } + }; + // Compute the size of the scalar we need to return. + // No need to cast, because the variant index directly serves as discriminant and is + // encoded in the tag. + (Scalar::from_uint(variant.as_u32(), discr_layout.size), variant) + } + }) + } +} diff --git a/compiler/rustc_const_eval/src/interpret/mod.rs b/compiler/rustc_const_eval/src/interpret/mod.rs index 2e356f67bf36..86de4e4e32c2 100644 --- a/compiler/rustc_const_eval/src/interpret/mod.rs +++ b/compiler/rustc_const_eval/src/interpret/mod.rs @@ -1,6 +1,7 @@ //! An interpreter for MIR used in CTFE and by miri mod cast; +mod discriminant; mod eval_context; mod intern; mod intrinsics; diff --git a/compiler/rustc_const_eval/src/interpret/operand.rs b/compiler/rustc_const_eval/src/interpret/operand.rs index a1b3985dce4e..52613d5ca1f9 100644 --- a/compiler/rustc_const_eval/src/interpret/operand.rs +++ b/compiler/rustc_const_eval/src/interpret/operand.rs @@ -4,13 +4,12 @@ use either::{Either, Left, Right}; use rustc_hir::def::Namespace; -use rustc_middle::ty::layout::{LayoutOf, PrimitiveExt, TyAndLayout}; +use rustc_middle::ty::layout::{LayoutOf, TyAndLayout}; use rustc_middle::ty::print::{FmtPrinter, PrettyPrinter}; use rustc_middle::ty::{ConstInt, Ty, ValTree}; use rustc_middle::{mir, ty}; use rustc_span::Span; -use rustc_target::abi::{self, Abi, Align, HasDataLayout, Size, TagEncoding}; -use rustc_target::abi::{VariantIdx, Variants}; +use rustc_target::abi::{self, Abi, Align, HasDataLayout, Size}; use super::{ alloc_range, from_known_layout, mir_assign_valid_types, AllocId, ConstValue, Frame, GlobalId, @@ -657,154 +656,6 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { }; Ok(OpTy { op, layout, align: Some(layout.align.abi) }) } - - /// Read discriminant, return the runtime value as well as the variant index. - /// Can also legally be called on non-enums (e.g. through the discriminant_value intrinsic)! - pub fn read_discriminant( - &self, - op: &OpTy<'tcx, M::Provenance>, - ) -> InterpResult<'tcx, (Scalar, VariantIdx)> { - trace!("read_discriminant_value {:#?}", op.layout); - // Get type and layout of the discriminant. - let discr_layout = self.layout_of(op.layout.ty.discriminant_ty(*self.tcx))?; - trace!("discriminant type: {:?}", discr_layout.ty); - - // We use "discriminant" to refer to the value associated with a particular enum variant. - // This is not to be confused with its "variant index", which is just determining its position in the - // declared list of variants -- they can differ with explicitly assigned discriminants. - // We use "tag" to refer to how the discriminant is encoded in memory, which can be either - // straight-forward (`TagEncoding::Direct`) or with a niche (`TagEncoding::Niche`). - let (tag_scalar_layout, tag_encoding, tag_field) = match op.layout.variants { - Variants::Single { index } => { - let discr = match op.layout.ty.discriminant_for_variant(*self.tcx, index) { - Some(discr) => { - // This type actually has discriminants. - assert_eq!(discr.ty, discr_layout.ty); - Scalar::from_uint(discr.val, discr_layout.size) - } - None => { - // On a type without actual discriminants, variant is 0. - assert_eq!(index.as_u32(), 0); - Scalar::from_uint(index.as_u32(), discr_layout.size) - } - }; - return Ok((discr, index)); - } - Variants::Multiple { tag, ref tag_encoding, tag_field, .. } => { - (tag, tag_encoding, tag_field) - } - }; - - // There are *three* layouts that come into play here: - // - The discriminant has a type for typechecking. This is `discr_layout`, and is used for - // the `Scalar` we return. - // - The tag (encoded discriminant) has layout `tag_layout`. This is always an integer type, - // and used to interpret the value we read from the tag field. - // For the return value, a cast to `discr_layout` is performed. - // - The field storing the tag has a layout, which is very similar to `tag_layout` but - // may be a pointer. This is `tag_val.layout`; we just use it for sanity checks. - - // Get layout for tag. - let tag_layout = self.layout_of(tag_scalar_layout.primitive().to_int_ty(*self.tcx))?; - - // Read tag and sanity-check `tag_layout`. - let tag_val = self.read_immediate(&self.operand_field(op, tag_field)?)?; - assert_eq!(tag_layout.size, tag_val.layout.size); - assert_eq!(tag_layout.abi.is_signed(), tag_val.layout.abi.is_signed()); - trace!("tag value: {}", tag_val); - - // Figure out which discriminant and variant this corresponds to. - Ok(match *tag_encoding { - TagEncoding::Direct => { - let scalar = tag_val.to_scalar(); - // Generate a specific error if `tag_val` is not an integer. - // (`tag_bits` itself is only used for error messages below.) - let tag_bits = scalar - .try_to_int() - .map_err(|dbg_val| err_ub!(InvalidTag(dbg_val)))? - .assert_bits(tag_layout.size); - // Cast bits from tag layout to discriminant layout. - // After the checks we did above, this cannot fail, as - // discriminants are int-like. - let discr_val = - self.cast_from_int_like(scalar, tag_val.layout, discr_layout.ty).unwrap(); - let discr_bits = discr_val.assert_bits(discr_layout.size); - // Convert discriminant to variant index, and catch invalid discriminants. - let index = match *op.layout.ty.kind() { - ty::Adt(adt, _) => { - adt.discriminants(*self.tcx).find(|(_, var)| var.val == discr_bits) - } - ty::Generator(def_id, substs, _) => { - let substs = substs.as_generator(); - substs - .discriminants(def_id, *self.tcx) - .find(|(_, var)| var.val == discr_bits) - } - _ => span_bug!(self.cur_span(), "tagged layout for non-adt non-generator"), - } - .ok_or_else(|| err_ub!(InvalidTag(Scalar::from_uint(tag_bits, tag_layout.size))))?; - // Return the cast value, and the index. - (discr_val, index.0) - } - TagEncoding::Niche { untagged_variant, ref niche_variants, niche_start } => { - let tag_val = tag_val.to_scalar(); - // Compute the variant this niche value/"tag" corresponds to. With niche layout, - // discriminant (encoded in niche/tag) and variant index are the same. - let variants_start = niche_variants.start().as_u32(); - let variants_end = niche_variants.end().as_u32(); - let variant = match tag_val.try_to_int() { - Err(dbg_val) => { - // So this is a pointer then, and casting to an int failed. - // Can only happen during CTFE. - // The niche must be just 0, and the ptr not null, then we know this is - // okay. Everything else, we conservatively reject. - let ptr_valid = niche_start == 0 - && variants_start == variants_end - && !self.scalar_may_be_null(tag_val)?; - if !ptr_valid { - throw_ub!(InvalidTag(dbg_val)) - } - untagged_variant - } - Ok(tag_bits) => { - let tag_bits = tag_bits.assert_bits(tag_layout.size); - // We need to use machine arithmetic to get the relative variant idx: - // variant_index_relative = tag_val - niche_start_val - let tag_val = ImmTy::from_uint(tag_bits, tag_layout); - let niche_start_val = ImmTy::from_uint(niche_start, tag_layout); - let variant_index_relative_val = - self.binary_op(mir::BinOp::Sub, &tag_val, &niche_start_val)?; - let variant_index_relative = - variant_index_relative_val.to_scalar().assert_bits(tag_val.layout.size); - // Check if this is in the range that indicates an actual discriminant. - if variant_index_relative <= u128::from(variants_end - variants_start) { - let variant_index_relative = u32::try_from(variant_index_relative) - .expect("we checked that this fits into a u32"); - // Then computing the absolute variant idx should not overflow any more. - let variant_index = variants_start - .checked_add(variant_index_relative) - .expect("overflow computing absolute variant idx"); - let variants_len = op - .layout - .ty - .ty_adt_def() - .expect("tagged layout for non adt") - .variants() - .len(); - assert!(usize::try_from(variant_index).unwrap() < variants_len); - VariantIdx::from_u32(variant_index) - } else { - untagged_variant - } - } - }; - // Compute the size of the scalar we need to return. - // No need to cast, because the variant index directly serves as discriminant and is - // encoded in the tag. - (Scalar::from_uint(variant.as_u32(), discr_layout.size), variant) - } - }) - } } // Some nodes are used a lot. Make sure they don't unintentionally get bigger. diff --git a/compiler/rustc_const_eval/src/interpret/place.rs b/compiler/rustc_const_eval/src/interpret/place.rs index 274af61ee7c1..f82a41078d15 100644 --- a/compiler/rustc_const_eval/src/interpret/place.rs +++ b/compiler/rustc_const_eval/src/interpret/place.rs @@ -7,8 +7,8 @@ use either::{Either, Left, Right}; use rustc_ast::Mutability; use rustc_middle::mir; use rustc_middle::ty; -use rustc_middle::ty::layout::{LayoutOf, PrimitiveExt, TyAndLayout}; -use rustc_target::abi::{self, Abi, Align, HasDataLayout, Size, TagEncoding, VariantIdx}; +use rustc_middle::ty::layout::{LayoutOf, TyAndLayout}; +use rustc_target::abi::{self, Abi, Align, HasDataLayout, Size, VariantIdx}; use super::{ alloc_range, mir_assign_valid_types, AllocId, AllocRef, AllocRefMut, CheckInAllocMsg, @@ -767,92 +767,32 @@ where MPlaceTy { mplace, layout, align: layout.align.abi } } - /// Writes the discriminant of the given variant. - #[instrument(skip(self), level = "debug")] - pub fn write_discriminant( + /// Writes the aggregate to the destination. + #[instrument(skip(self), level = "trace")] + pub fn write_aggregate( &mut self, - variant_index: VariantIdx, + kind: &mir::AggregateKind<'tcx>, + operands: &[mir::Operand<'tcx>], dest: &PlaceTy<'tcx, M::Provenance>, ) -> InterpResult<'tcx> { - // This must be an enum or generator. - match dest.layout.ty.kind() { - ty::Adt(adt, _) => assert!(adt.is_enum()), - ty::Generator(..) => {} - _ => span_bug!( - self.cur_span(), - "write_discriminant called on non-variant-type (neither enum nor generator)" - ), - } - // Layout computation excludes uninhabited variants from consideration - // therefore there's no way to represent those variants in the given layout. - // Essentially, uninhabited variants do not have a tag that corresponds to their - // discriminant, so we cannot do anything here. - // When evaluating we will always error before even getting here, but ConstProp 'executes' - // dead code, so we cannot ICE here. - if dest.layout.for_variant(self, variant_index).abi.is_uninhabited() { - throw_ub!(UninhabitedEnumVariantWritten) - } - - match dest.layout.variants { - abi::Variants::Single { index } => { - assert_eq!(index, variant_index); - } - abi::Variants::Multiple { - tag_encoding: TagEncoding::Direct, - tag: tag_layout, - tag_field, - .. - } => { - // No need to validate that the discriminant here because the - // `TyAndLayout::for_variant()` call earlier already checks the variant is valid. - - let discr_val = - dest.layout.ty.discriminant_for_variant(*self.tcx, variant_index).unwrap().val; - - // raw discriminants for enums are isize or bigger during - // their computation, but the in-memory tag is the smallest possible - // representation - let size = tag_layout.size(self); - let tag_val = size.truncate(discr_val); - - let tag_dest = self.place_field(dest, tag_field)?; - self.write_scalar(Scalar::from_uint(tag_val, size), &tag_dest)?; - } - abi::Variants::Multiple { - tag_encoding: - TagEncoding::Niche { untagged_variant, ref niche_variants, niche_start }, - tag: tag_layout, - tag_field, - .. - } => { - // No need to validate that the discriminant here because the - // `TyAndLayout::for_variant()` call earlier already checks the variant is valid. - - if variant_index != untagged_variant { - let variants_start = niche_variants.start().as_u32(); - let variant_index_relative = variant_index - .as_u32() - .checked_sub(variants_start) - .expect("overflow computing relative variant idx"); - // We need to use machine arithmetic when taking into account `niche_start`: - // tag_val = variant_index_relative + niche_start_val - let tag_layout = self.layout_of(tag_layout.primitive().to_int_ty(*self.tcx))?; - let niche_start_val = ImmTy::from_uint(niche_start, tag_layout); - let variant_index_relative_val = - ImmTy::from_uint(variant_index_relative, tag_layout); - let tag_val = self.binary_op( - mir::BinOp::Add, - &variant_index_relative_val, - &niche_start_val, - )?; - // Write result. - let niche_dest = self.place_field(dest, tag_field)?; - self.write_immediate(*tag_val, &niche_dest)?; - } + self.write_uninit(&dest)?; + let (variant_index, variant_dest, active_field_index) = match *kind { + mir::AggregateKind::Adt(_, variant_index, _, _, active_field_index) => { + let variant_dest = self.place_downcast(&dest, variant_index)?; + (variant_index, variant_dest, active_field_index) } + _ => (VariantIdx::from_u32(0), dest.clone(), None), + }; + if active_field_index.is_some() { + assert_eq!(operands.len(), 1); } - - Ok(()) + for (field_index, operand) in operands.iter().enumerate() { + let field_index = active_field_index.unwrap_or(field_index); + let field_dest = self.place_field(&variant_dest, field_index)?; + let op = self.eval_operand(operand, Some(field_dest.layout))?; + self.copy_op(&op, &field_dest, /*allow_transmute*/ false)?; + } + self.write_discriminant(variant_index, &dest) } pub fn raw_const_to_mplace( diff --git a/compiler/rustc_const_eval/src/interpret/step.rs b/compiler/rustc_const_eval/src/interpret/step.rs index d101937fd740..7d9a98da08a9 100644 --- a/compiler/rustc_const_eval/src/interpret/step.rs +++ b/compiler/rustc_const_eval/src/interpret/step.rs @@ -199,13 +199,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { } Aggregate(box ref kind, ref operands) => { - assert!(matches!(kind, mir::AggregateKind::Array(..))); - - for (field_index, operand) in operands.iter().enumerate() { - let op = self.eval_operand(operand, None)?; - let field_dest = self.place_field(&dest, field_index)?; - self.copy_op(&op, &field_dest, /*allow_transmute*/ false)?; - } + self.write_aggregate(kind, operands, &dest)?; } Repeat(ref operand, _) => { diff --git a/compiler/rustc_const_eval/src/transform/check_consts/check.rs b/compiler/rustc_const_eval/src/transform/check_consts/check.rs index f47e3e86ebe2..1a23b06d2e89 100644 --- a/compiler/rustc_const_eval/src/transform/check_consts/check.rs +++ b/compiler/rustc_const_eval/src/transform/check_consts/check.rs @@ -453,7 +453,7 @@ impl<'tcx> Visitor<'tcx> for Checker<'_, 'tcx> { Rvalue::Aggregate(kind, ..) => { if let AggregateKind::Generator(def_id, ..) = kind.as_ref() - && let Some(generator_kind @ hir::GeneratorKind::Async(..)) = self.tcx.generator_kind(def_id.to_def_id()) + && let Some(generator_kind @ hir::GeneratorKind::Async(..)) = self.tcx.generator_kind(def_id) { self.check_op(ops::Generator(generator_kind)); } diff --git a/compiler/rustc_const_eval/src/transform/check_consts/ops.rs b/compiler/rustc_const_eval/src/transform/check_consts/ops.rs index 0cb5d2ff8c71..782a62accad9 100644 --- a/compiler/rustc_const_eval/src/transform/check_consts/ops.rs +++ b/compiler/rustc_const_eval/src/transform/check_consts/ops.rs @@ -22,13 +22,7 @@ use rustc_span::{BytePos, Pos, Span, Symbol}; use rustc_trait_selection::traits::SelectionContext; use super::ConstCx; -use crate::errors::{ - InteriorMutabilityBorrow, InteriorMutableDataRefer, MutDerefErr, NonConstFmtMacroCall, - NonConstFnCall, NonConstOpErr, PanicNonStrErr, RawPtrToIntErr, StaticAccessErr, - TransientMutBorrowErr, TransientMutBorrowErrRaw, UnallowedFnPointerCall, - UnallowedHeapAllocations, UnallowedInlineAsm, UnallowedMutableRefs, UnallowedMutableRefsRaw, - UnallowedOpInConstContext, UnstableConstFn, -}; +use crate::errors; use crate::util::{call_kind, CallDesugaringKind, CallKind}; #[derive(Clone, Copy, Debug, PartialEq, Eq)] @@ -99,7 +93,7 @@ impl<'tcx> NonConstOp<'tcx> for FnCallIndirect { ccx: &ConstCx<'_, 'tcx>, span: Span, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { - ccx.tcx.sess.create_err(UnallowedFnPointerCall { span, kind: ccx.const_kind() }) + ccx.tcx.sess.create_err(errors::UnallowedFnPointerCall { span, kind: ccx.const_kind() }) } } @@ -303,10 +297,11 @@ impl<'tcx> NonConstOp<'tcx> for FnCallNonConst<'tcx> { diag_trait(&mut err, self_ty, tcx.require_lang_item(LangItem::Deref, Some(span))); err } - _ if tcx.opt_parent(callee) == tcx.get_diagnostic_item(sym::ArgumentV1Methods) => { - ccx.tcx.sess.create_err(NonConstFmtMacroCall { span, kind: ccx.const_kind() }) - } - _ => ccx.tcx.sess.create_err(NonConstFnCall { + _ if tcx.opt_parent(callee) == tcx.get_diagnostic_item(sym::ArgumentV1Methods) => ccx + .tcx + .sess + .create_err(errors::NonConstFmtMacroCall { span, kind: ccx.const_kind() }), + _ => ccx.tcx.sess.create_err(errors::NonConstFnCall { span, def_path_str: ccx.tcx.def_path_str_with_substs(callee, substs), kind: ccx.const_kind(), @@ -351,7 +346,7 @@ impl<'tcx> NonConstOp<'tcx> for FnCallUnstable { let mut err = ccx .tcx .sess - .create_err(UnstableConstFn { span, def_path: ccx.tcx.def_path_str(def_id) }); + .create_err(errors::UnstableConstFn { span, def_path: ccx.tcx.def_path_str(def_id) }); if ccx.is_const_stable_const_fn() { err.help("const-stable functions can only call other const-stable functions"); @@ -387,11 +382,11 @@ impl<'tcx> NonConstOp<'tcx> for Generator { let msg = format!("{}s are not allowed in {}s", self.0.descr(), ccx.const_kind()); if let hir::GeneratorKind::Async(hir::AsyncGeneratorKind::Block) = self.0 { ccx.tcx.sess.create_feature_err( - UnallowedOpInConstContext { span, msg }, + errors::UnallowedOpInConstContext { span, msg }, sym::const_async_blocks, ) } else { - ccx.tcx.sess.create_err(UnallowedOpInConstContext { span, msg }) + ccx.tcx.sess.create_err(errors::UnallowedOpInConstContext { span, msg }) } } } @@ -404,7 +399,7 @@ impl<'tcx> NonConstOp<'tcx> for HeapAllocation { ccx: &ConstCx<'_, 'tcx>, span: Span, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { - ccx.tcx.sess.create_err(UnallowedHeapAllocations { + ccx.tcx.sess.create_err(errors::UnallowedHeapAllocations { span, kind: ccx.const_kind(), teach: ccx.tcx.sess.teach(&error_code!(E0010)).then_some(()), @@ -420,7 +415,7 @@ impl<'tcx> NonConstOp<'tcx> for InlineAsm { ccx: &ConstCx<'_, 'tcx>, span: Span, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { - ccx.tcx.sess.create_err(UnallowedInlineAsm { span, kind: ccx.const_kind() }) + ccx.tcx.sess.create_err(errors::UnallowedInlineAsm { span, kind: ccx.const_kind() }) } } @@ -471,7 +466,9 @@ impl<'tcx> NonConstOp<'tcx> for TransientCellBorrow { ccx: &ConstCx<'_, 'tcx>, span: Span, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { - ccx.tcx.sess.create_feature_err(InteriorMutabilityBorrow { span }, sym::const_refs_to_cell) + ccx.tcx + .sess + .create_feature_err(errors::InteriorMutabilityBorrow { span }, sym::const_refs_to_cell) } } @@ -488,14 +485,14 @@ impl<'tcx> NonConstOp<'tcx> for CellBorrow { ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { // FIXME: Maybe a more elegant solution to this if else case if let hir::ConstContext::Static(_) = ccx.const_kind() { - ccx.tcx.sess.create_err(InteriorMutableDataRefer { + ccx.tcx.sess.create_err(errors::InteriorMutableDataRefer { span, opt_help: Some(()), kind: ccx.const_kind(), teach: ccx.tcx.sess.teach(&error_code!(E0492)).then_some(()), }) } else { - ccx.tcx.sess.create_err(InteriorMutableDataRefer { + ccx.tcx.sess.create_err(errors::InteriorMutableDataRefer { span, opt_help: None, kind: ccx.const_kind(), @@ -528,12 +525,12 @@ impl<'tcx> NonConstOp<'tcx> for MutBorrow { span: Span, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { match self.0 { - hir::BorrowKind::Raw => ccx.tcx.sess.create_err(UnallowedMutableRefsRaw { + hir::BorrowKind::Raw => ccx.tcx.sess.create_err(errors::UnallowedMutableRefsRaw { span, kind: ccx.const_kind(), teach: ccx.tcx.sess.teach(&error_code!(E0764)).then_some(()), }), - hir::BorrowKind::Ref => ccx.tcx.sess.create_err(UnallowedMutableRefs { + hir::BorrowKind::Ref => ccx.tcx.sess.create_err(errors::UnallowedMutableRefs { span, kind: ccx.const_kind(), teach: ccx.tcx.sess.teach(&error_code!(E0764)).then_some(()), @@ -557,14 +554,14 @@ impl<'tcx> NonConstOp<'tcx> for TransientMutBorrow { ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { let kind = ccx.const_kind(); match self.0 { - hir::BorrowKind::Raw => ccx - .tcx - .sess - .create_feature_err(TransientMutBorrowErrRaw { span, kind }, sym::const_mut_refs), - hir::BorrowKind::Ref => ccx - .tcx - .sess - .create_feature_err(TransientMutBorrowErr { span, kind }, sym::const_mut_refs), + hir::BorrowKind::Raw => ccx.tcx.sess.create_feature_err( + errors::TransientMutBorrowErrRaw { span, kind }, + sym::const_mut_refs, + ), + hir::BorrowKind::Ref => ccx.tcx.sess.create_feature_err( + errors::TransientMutBorrowErr { span, kind }, + sym::const_mut_refs, + ), } } } @@ -586,9 +583,10 @@ impl<'tcx> NonConstOp<'tcx> for MutDeref { ccx: &ConstCx<'_, 'tcx>, span: Span, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { - ccx.tcx - .sess - .create_feature_err(MutDerefErr { span, kind: ccx.const_kind() }, sym::const_mut_refs) + ccx.tcx.sess.create_feature_err( + errors::MutDerefErr { span, kind: ccx.const_kind() }, + sym::const_mut_refs, + ) } } @@ -601,7 +599,7 @@ impl<'tcx> NonConstOp<'tcx> for PanicNonStr { ccx: &ConstCx<'_, 'tcx>, span: Span, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { - ccx.tcx.sess.create_err(PanicNonStrErr { span }) + ccx.tcx.sess.create_err(errors::PanicNonStrErr { span }) } } @@ -652,7 +650,7 @@ impl<'tcx> NonConstOp<'tcx> for RawPtrToIntCast { ccx: &ConstCx<'_, 'tcx>, span: Span, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { - ccx.tcx.sess.create_err(RawPtrToIntErr { span }) + ccx.tcx.sess.create_err(errors::RawPtrToIntErr { span }) } } @@ -673,7 +671,7 @@ impl<'tcx> NonConstOp<'tcx> for StaticAccess { ccx: &ConstCx<'_, 'tcx>, span: Span, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { - ccx.tcx.sess.create_err(StaticAccessErr { + ccx.tcx.sess.create_err(errors::StaticAccessErr { span, kind: ccx.const_kind(), teach: ccx.tcx.sess.teach(&error_code!(E0013)).then_some(()), @@ -690,7 +688,7 @@ impl<'tcx> NonConstOp<'tcx> for ThreadLocalAccess { ccx: &ConstCx<'_, 'tcx>, span: Span, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { - ccx.tcx.sess.create_err(NonConstOpErr { span }) + ccx.tcx.sess.create_err(errors::NonConstOpErr { span }) } } diff --git a/compiler/rustc_const_eval/src/transform/validate.rs b/compiler/rustc_const_eval/src/transform/validate.rs index 72f456138ef5..76b316cdf0c3 100644 --- a/compiler/rustc_const_eval/src/transform/validate.rs +++ b/compiler/rustc_const_eval/src/transform/validate.rs @@ -8,10 +8,10 @@ use rustc_middle::mir::interpret::Scalar; use rustc_middle::mir::visit::NonUseContext::VarDebugInfo; use rustc_middle::mir::visit::{PlaceContext, Visitor}; use rustc_middle::mir::{ - traversal, AggregateKind, BasicBlock, BinOp, Body, BorrowKind, CastKind, CopyNonOverlapping, - Local, Location, MirPass, MirPhase, NonDivergingIntrinsic, Operand, Place, PlaceElem, PlaceRef, - ProjectionElem, RetagKind, RuntimePhase, Rvalue, SourceScope, Statement, StatementKind, - Terminator, TerminatorKind, UnOp, START_BLOCK, + traversal, BasicBlock, BinOp, Body, BorrowKind, CastKind, CopyNonOverlapping, Local, Location, + MirPass, MirPhase, NonDivergingIntrinsic, Operand, Place, PlaceElem, PlaceRef, ProjectionElem, + RetagKind, RuntimePhase, Rvalue, SourceScope, Statement, StatementKind, Terminator, + TerminatorKind, UnOp, START_BLOCK, }; use rustc_middle::ty::{self, InstanceDef, ParamEnv, Ty, TyCtxt}; use rustc_mir_dataflow::impls::MaybeStorageLive; @@ -423,19 +423,7 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> { }; } match rvalue { - Rvalue::Use(_) | Rvalue::CopyForDeref(_) => {} - Rvalue::Aggregate(agg_kind, _) => { - let disallowed = match **agg_kind { - AggregateKind::Array(..) => false, - _ => self.mir_phase >= MirPhase::Runtime(RuntimePhase::PostCleanup), - }; - if disallowed { - self.fail( - location, - format!("{:?} have been lowered to field assignments", rvalue), - ) - } - } + Rvalue::Use(_) | Rvalue::CopyForDeref(_) | Rvalue::Aggregate(..) => {} Rvalue::Ref(_, BorrowKind::Shallow, _) => { if self.mir_phase >= MirPhase::Runtime(RuntimePhase::Initial) { self.fail( diff --git a/compiler/rustc_const_eval/src/util/aggregate.rs b/compiler/rustc_const_eval/src/util/aggregate.rs deleted file mode 100644 index 10783c5ed1d1..000000000000 --- a/compiler/rustc_const_eval/src/util/aggregate.rs +++ /dev/null @@ -1,77 +0,0 @@ -use rustc_index::vec::Idx; -use rustc_middle::mir::*; -use rustc_middle::ty::{Ty, TyCtxt}; -use rustc_target::abi::VariantIdx; - -use std::iter::TrustedLen; - -/// Expand `lhs = Rvalue::Aggregate(kind, operands)` into assignments to the fields. -/// -/// Produces something like -/// ```ignore (ilustrative) -/// (lhs as Variant).field0 = arg0; // We only have a downcast if this is an enum -/// (lhs as Variant).field1 = arg1; -/// discriminant(lhs) = variant_index; // If lhs is an enum or generator. -/// ``` -pub fn expand_aggregate<'tcx>( - orig_lhs: Place<'tcx>, - operands: impl Iterator, Ty<'tcx>)> + TrustedLen, - kind: AggregateKind<'tcx>, - source_info: SourceInfo, - tcx: TyCtxt<'tcx>, -) -> impl Iterator> + TrustedLen { - let mut lhs = orig_lhs; - let mut set_discriminant = None; - let active_field_index = match kind { - AggregateKind::Adt(adt_did, variant_index, _, _, active_field_index) => { - let adt_def = tcx.adt_def(adt_did); - if adt_def.is_enum() { - set_discriminant = Some(Statement { - kind: StatementKind::SetDiscriminant { - place: Box::new(orig_lhs), - variant_index, - }, - source_info, - }); - lhs = tcx.mk_place_downcast(orig_lhs, adt_def, variant_index); - } - active_field_index - } - AggregateKind::Generator(..) => { - // Right now we only support initializing generators to - // variant 0 (Unresumed). - let variant_index = VariantIdx::new(0); - set_discriminant = Some(Statement { - kind: StatementKind::SetDiscriminant { place: Box::new(orig_lhs), variant_index }, - source_info, - }); - - // Operands are upvars stored on the base place, so no - // downcast is necessary. - - None - } - _ => None, - }; - - let operands = operands.enumerate().map(move |(i, (op, ty))| { - let lhs_field = if let AggregateKind::Array(_) = kind { - let offset = u64::try_from(i).unwrap(); - tcx.mk_place_elem( - lhs, - ProjectionElem::ConstantIndex { offset, min_length: offset + 1, from_end: false }, - ) - } else { - let field = Field::new(active_field_index.unwrap_or(i)); - tcx.mk_place_field(lhs, field, ty) - }; - Statement { - source_info, - kind: StatementKind::Assign(Box::new((lhs_field, Rvalue::Use(op)))), - } - }); - [Statement { source_info, kind: StatementKind::Deinit(Box::new(orig_lhs)) }] - .into_iter() - .chain(operands) - .chain(set_discriminant) -} diff --git a/compiler/rustc_const_eval/src/util/mod.rs b/compiler/rustc_const_eval/src/util/mod.rs index 76ea5a24e69e..51735e33e0f7 100644 --- a/compiler/rustc_const_eval/src/util/mod.rs +++ b/compiler/rustc_const_eval/src/util/mod.rs @@ -1,4 +1,3 @@ -pub mod aggregate; mod alignment; mod call_kind; pub mod collect_writes; @@ -7,7 +6,6 @@ mod find_self_call; mod might_permit_raw_init; mod type_name; -pub use self::aggregate::expand_aggregate; pub use self::alignment::is_disaligned; pub use self::call_kind::{call_kind, CallDesugaringKind, CallKind}; pub use self::compare_types::{is_equal_up_to_subtyping, is_subtype}; diff --git a/compiler/rustc_data_structures/src/sync.rs b/compiler/rustc_data_structures/src/sync.rs index ed5341c40ef0..ad71dcdf9d95 100644 --- a/compiler/rustc_data_structures/src/sync.rs +++ b/compiler/rustc_data_structures/src/sync.rs @@ -31,8 +31,8 @@ cfg_if! { pub auto trait Send {} pub auto trait Sync {} - impl Send for T {} - impl Sync for T {} + impl Send for T {} + impl Sync for T {} #[macro_export] macro_rules! rustc_erase_owner { diff --git a/compiler/rustc_driver/Cargo.toml b/compiler/rustc_driver/Cargo.toml index 59e937777483..d7c295418ba6 100644 --- a/compiler/rustc_driver/Cargo.toml +++ b/compiler/rustc_driver/Cargo.toml @@ -7,39 +7,4 @@ edition = "2021" crate-type = ["dylib"] [dependencies] -tracing = { version = "0.1.35" } -serde_json = "1.0.59" -rustc_log = { path = "../rustc_log" } -rustc_middle = { path = "../rustc_middle" } -rustc_ast_pretty = { path = "../rustc_ast_pretty" } -rustc_target = { path = "../rustc_target" } -rustc_lint = { path = "../rustc_lint" } -rustc_data_structures = { path = "../rustc_data_structures" } -rustc_errors = { path = "../rustc_errors" } -rustc_feature = { path = "../rustc_feature" } -rustc_hir = { path = "../rustc_hir" } -rustc_hir_pretty = { path = "../rustc_hir_pretty" } -rustc_macros = { path = "../rustc_macros" } -rustc_metadata = { path = "../rustc_metadata" } -rustc_parse = { path = "../rustc_parse" } -rustc_plugin_impl = { path = "../rustc_plugin_impl" } -rustc_save_analysis = { path = "../rustc_save_analysis" } -rustc_codegen_ssa = { path = "../rustc_codegen_ssa" } -rustc_session = { path = "../rustc_session" } -rustc_error_codes = { path = "../rustc_error_codes" } -rustc_interface = { path = "../rustc_interface" } -rustc_ast = { path = "../rustc_ast" } -rustc_span = { path = "../rustc_span" } -rustc_hir_analysis = { path = "../rustc_hir_analysis" } - -[target.'cfg(unix)'.dependencies] -libc = "0.2" - -[target.'cfg(windows)'.dependencies] -winapi = { version = "0.3", features = ["consoleapi", "debugapi", "processenv"] } - -[features] -llvm = ['rustc_interface/llvm'] -max_level_info = ['rustc_log/max_level_info'] -rustc_use_parallel_compiler = ['rustc_data_structures/rustc_use_parallel_compiler', 'rustc_interface/rustc_use_parallel_compiler', - 'rustc_middle/rustc_use_parallel_compiler'] +rustc_driver_impl = { path = "../rustc_driver_impl" } diff --git a/compiler/rustc_driver/src/lib.rs b/compiler/rustc_driver/src/lib.rs index 02e0b042ad26..4eabba575f42 100644 --- a/compiler/rustc_driver/src/lib.rs +++ b/compiler/rustc_driver/src/lib.rs @@ -1,1353 +1,4 @@ -//! The Rust compiler. -//! -//! # Note -//! -//! This API is completely unstable and subject to change. +// This crate is intentionally empty and a rexport of `rustc_driver_impl` to allow the code in +// `rustc_driver_impl` to be compiled in parallel with other crates. -#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")] -#![feature(is_terminal)] -#![feature(once_cell)] -#![feature(decl_macro)] -#![recursion_limit = "256"] -#![allow(rustc::potential_query_instability)] -#![deny(rustc::untranslatable_diagnostic)] -#![deny(rustc::diagnostic_outside_of_impl)] - -#[macro_use] -extern crate tracing; - -pub extern crate rustc_plugin_impl as plugin; - -use rustc_ast as ast; -use rustc_codegen_ssa::{traits::CodegenBackend, CodegenErrors, CodegenResults}; -use rustc_data_structures::profiling::{get_resident_set_size, print_time_passes_entry}; -use rustc_data_structures::sync::SeqCst; -use rustc_errors::registry::{InvalidErrorCode, Registry}; -use rustc_errors::{ErrorGuaranteed, PResult}; -use rustc_feature::find_gated_cfg; -use rustc_hir::def_id::LOCAL_CRATE; -use rustc_interface::util::{self, collect_crate_types, get_codegen_backend}; -use rustc_interface::{interface, Queries}; -use rustc_lint::LintStore; -use rustc_metadata::locator; -use rustc_save_analysis as save; -use rustc_save_analysis::DumpHandler; -use rustc_session::config::{nightly_options, CG_OPTIONS, Z_OPTIONS}; -use rustc_session::config::{ErrorOutputType, Input, OutputType, PrintRequest, TrimmedDefPaths}; -use rustc_session::cstore::MetadataLoader; -use rustc_session::getopts; -use rustc_session::lint::{Lint, LintId}; -use rustc_session::{config, Session}; -use rustc_session::{early_error, early_error_no_abort, early_warn}; -use rustc_span::source_map::{FileLoader, FileName}; -use rustc_span::symbol::sym; -use rustc_target::json::ToJson; - -use std::cmp::max; -use std::env; -use std::ffi::OsString; -use std::fs; -use std::io::{self, IsTerminal, Read, Write}; -use std::panic::{self, catch_unwind}; -use std::path::PathBuf; -use std::process::{self, Command, Stdio}; -use std::str; -use std::sync::LazyLock; -use std::time::Instant; - -pub mod args; -pub mod pretty; -mod session_diagnostics; - -use crate::session_diagnostics::{ - RLinkEmptyVersionNumber, RLinkEncodingVersionMismatch, RLinkRustcVersionMismatch, - RLinkWrongFileType, RlinkNotAFile, RlinkUnableToRead, -}; - -/// Exit status code used for successful compilation and help output. -pub const EXIT_SUCCESS: i32 = 0; - -/// Exit status code used for compilation failures and invalid flags. -pub const EXIT_FAILURE: i32 = 1; - -const BUG_REPORT_URL: &str = "https://github.com/rust-lang/rust/issues/new\ - ?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md"; - -const ICE_REPORT_COMPILER_FLAGS: &[&str] = &["-Z", "-C", "--crate-type"]; - -const ICE_REPORT_COMPILER_FLAGS_EXCLUDE: &[&str] = &["metadata", "extra-filename"]; - -const ICE_REPORT_COMPILER_FLAGS_STRIP_VALUE: &[&str] = &["incremental"]; - -pub fn abort_on_err(result: Result, sess: &Session) -> T { - match result { - Err(..) => { - sess.abort_if_errors(); - panic!("error reported but abort_if_errors didn't abort???"); - } - Ok(x) => x, - } -} - -pub trait Callbacks { - /// Called before creating the compiler instance - fn config(&mut self, _config: &mut interface::Config) {} - /// Called after parsing. Return value instructs the compiler whether to - /// continue the compilation afterwards (defaults to `Compilation::Continue`) - fn after_parsing<'tcx>( - &mut self, - _compiler: &interface::Compiler, - _queries: &'tcx Queries<'tcx>, - ) -> Compilation { - Compilation::Continue - } - /// Called after expansion. Return value instructs the compiler whether to - /// continue the compilation afterwards (defaults to `Compilation::Continue`) - fn after_expansion<'tcx>( - &mut self, - _compiler: &interface::Compiler, - _queries: &'tcx Queries<'tcx>, - ) -> Compilation { - Compilation::Continue - } - /// Called after analysis. Return value instructs the compiler whether to - /// continue the compilation afterwards (defaults to `Compilation::Continue`) - fn after_analysis<'tcx>( - &mut self, - _compiler: &interface::Compiler, - _queries: &'tcx Queries<'tcx>, - ) -> Compilation { - Compilation::Continue - } -} - -#[derive(Default)] -pub struct TimePassesCallbacks { - time_passes: bool, -} - -impl Callbacks for TimePassesCallbacks { - // JUSTIFICATION: the session doesn't exist at this point. - #[allow(rustc::bad_opt_access)] - fn config(&mut self, config: &mut interface::Config) { - // If a --print=... option has been given, we don't print the "total" - // time because it will mess up the --print output. See #64339. - // - self.time_passes = config.opts.prints.is_empty() && config.opts.unstable_opts.time_passes; - config.opts.trimmed_def_paths = TrimmedDefPaths::GoodPath; - } -} - -pub fn diagnostics_registry() -> Registry { - Registry::new(rustc_error_codes::DIAGNOSTICS) -} - -/// This is the primary entry point for rustc. -pub struct RunCompiler<'a, 'b> { - at_args: &'a [String], - callbacks: &'b mut (dyn Callbacks + Send), - file_loader: Option>, - make_codegen_backend: - Option Box + Send>>, -} - -impl<'a, 'b> RunCompiler<'a, 'b> { - pub fn new(at_args: &'a [String], callbacks: &'b mut (dyn Callbacks + Send)) -> Self { - Self { at_args, callbacks, file_loader: None, make_codegen_backend: None } - } - - /// Set a custom codegen backend. - /// - /// Has no uses within this repository, but is used by bjorn3 for "the - /// hotswapping branch of cg_clif" for "setting the codegen backend from a - /// custom driver where the custom codegen backend has arbitrary data." - /// (See #102759.) - pub fn set_make_codegen_backend( - &mut self, - make_codegen_backend: Option< - Box Box + Send>, - >, - ) -> &mut Self { - self.make_codegen_backend = make_codegen_backend; - self - } - - /// Load files from sources other than the file system. - /// - /// Has no uses within this repository, but may be used in the future by - /// bjorn3 for "hooking rust-analyzer's VFS into rustc at some point for - /// running rustc without having to save". (See #102759.) - pub fn set_file_loader( - &mut self, - file_loader: Option>, - ) -> &mut Self { - self.file_loader = file_loader; - self - } - - /// Parse args and run the compiler. - pub fn run(self) -> interface::Result<()> { - run_compiler(self.at_args, self.callbacks, self.file_loader, self.make_codegen_backend) - } -} - -fn run_compiler( - at_args: &[String], - callbacks: &mut (dyn Callbacks + Send), - file_loader: Option>, - make_codegen_backend: Option< - Box Box + Send>, - >, -) -> interface::Result<()> { - let args = args::arg_expand_all(at_args); - - let Some(matches) = handle_options(&args) else { return Ok(()) }; - - let sopts = config::build_session_options(&matches); - - if let Some(ref code) = matches.opt_str("explain") { - handle_explain(diagnostics_registry(), code, sopts.error_format); - return Ok(()); - } - - let cfg = interface::parse_cfgspecs(matches.opt_strs("cfg")); - let check_cfg = interface::parse_check_cfg(matches.opt_strs("check-cfg")); - let (odir, ofile) = make_output(&matches); - let mut config = interface::Config { - opts: sopts, - crate_cfg: cfg, - crate_check_cfg: check_cfg, - input: Input::File(PathBuf::new()), - output_file: ofile, - output_dir: odir, - file_loader, - lint_caps: Default::default(), - parse_sess_created: None, - register_lints: None, - override_queries: None, - make_codegen_backend, - registry: diagnostics_registry(), - }; - - if !tracing::dispatcher::has_been_set() { - init_rustc_env_logger_with_backtrace_option(&config.opts.unstable_opts.log_backtrace); - } - - match make_input(config.opts.error_format, &matches.free) { - Err(reported) => return Err(reported), - Ok(Some(input)) => { - config.input = input; - - callbacks.config(&mut config); - } - Ok(None) => match matches.free.len() { - 0 => { - callbacks.config(&mut config); - interface::run_compiler(config, |compiler| { - let sopts = &compiler.session().opts; - if sopts.describe_lints { - let mut lint_store = - rustc_lint::new_lint_store(compiler.session().enable_internal_lints()); - let registered_lints = - if let Some(register_lints) = compiler.register_lints() { - register_lints(compiler.session(), &mut lint_store); - true - } else { - false - }; - describe_lints(compiler.session(), &lint_store, registered_lints); - return; - } - let should_stop = - print_crate_info(&***compiler.codegen_backend(), compiler.session(), false); - - if should_stop == Compilation::Stop { - return; - } - early_error(sopts.error_format, "no input filename given") - }); - return Ok(()); - } - 1 => panic!("make_input should have provided valid inputs"), - _ => early_error( - config.opts.error_format, - &format!( - "multiple input filenames provided (first two filenames are `{}` and `{}`)", - matches.free[0], matches.free[1], - ), - ), - }, - }; - - interface::run_compiler(config, |compiler| { - let sess = compiler.session(); - let should_stop = print_crate_info(&***compiler.codegen_backend(), sess, true) - .and_then(|| list_metadata(sess, &*compiler.codegen_backend().metadata_loader())) - .and_then(|| try_process_rlink(sess, compiler)); - - if should_stop == Compilation::Stop { - return sess.compile_status(); - } - - let linker = compiler.enter(|queries| { - let early_exit = || sess.compile_status().map(|_| None); - queries.parse()?; - - if let Some(ppm) = &sess.opts.pretty { - if ppm.needs_ast_map() { - queries.global_ctxt()?.enter(|tcx| { - pretty::print_after_hir_lowering(tcx, *ppm); - Ok(()) - })?; - } else { - let krate = queries.parse()?.steal(); - pretty::print_after_parsing(sess, &krate, *ppm); - } - trace!("finished pretty-printing"); - return early_exit(); - } - - if callbacks.after_parsing(compiler, queries) == Compilation::Stop { - return early_exit(); - } - - if sess.opts.unstable_opts.parse_only || sess.opts.unstable_opts.show_span.is_some() { - return early_exit(); - } - - { - let plugins = queries.register_plugins()?; - let (_, lint_store) = &*plugins.borrow(); - - // Lint plugins are registered; now we can process command line flags. - if sess.opts.describe_lints { - describe_lints(sess, lint_store, true); - return early_exit(); - } - } - - let mut gctxt = queries.global_ctxt()?; - if callbacks.after_expansion(compiler, queries) == Compilation::Stop { - return early_exit(); - } - - // Make sure the `output_filenames` query is run for its side - // effects of writing the dep-info and reporting errors. - gctxt.enter(|tcx| tcx.output_filenames(())); - - if sess.opts.output_types.contains_key(&OutputType::DepInfo) - && sess.opts.output_types.len() == 1 - { - return early_exit(); - } - - if sess.opts.unstable_opts.no_analysis { - return early_exit(); - } - - gctxt.enter(|tcx| { - let result = tcx.analysis(()); - if sess.opts.unstable_opts.save_analysis { - let crate_name = tcx.crate_name(LOCAL_CRATE); - sess.time("save_analysis", || { - save::process_crate( - tcx, - crate_name, - &sess.io.input, - None, - DumpHandler::new(sess.io.output_dir.as_deref(), crate_name), - ) - }); - } - result - })?; - - drop(gctxt); - - if callbacks.after_analysis(compiler, queries) == Compilation::Stop { - return early_exit(); - } - - queries.ongoing_codegen()?; - - if sess.opts.unstable_opts.print_type_sizes { - sess.code_stats.print_type_sizes(); - } - - let linker = queries.linker()?; - Ok(Some(linker)) - })?; - - if let Some(linker) = linker { - let _timer = sess.timer("link"); - linker.link()? - } - - if sess.opts.unstable_opts.perf_stats { - sess.print_perf_stats(); - } - - if sess.opts.unstable_opts.print_fuel.is_some() { - eprintln!( - "Fuel used by {}: {}", - sess.opts.unstable_opts.print_fuel.as_ref().unwrap(), - sess.print_fuel.load(SeqCst) - ); - } - - Ok(()) - }) -} - -// Extract output directory and file from matches. -fn make_output(matches: &getopts::Matches) -> (Option, Option) { - let odir = matches.opt_str("out-dir").map(|o| PathBuf::from(&o)); - let ofile = matches.opt_str("o").map(|o| PathBuf::from(&o)); - (odir, ofile) -} - -// Extract input (string or file and optional path) from matches. -fn make_input( - error_format: ErrorOutputType, - free_matches: &[String], -) -> Result, ErrorGuaranteed> { - if free_matches.len() == 1 { - let ifile = &free_matches[0]; - if ifile == "-" { - let mut src = String::new(); - if io::stdin().read_to_string(&mut src).is_err() { - // Immediately stop compilation if there was an issue reading - // the input (for example if the input stream is not UTF-8). - let reported = early_error_no_abort( - error_format, - "couldn't read from stdin, as it did not contain valid UTF-8", - ); - return Err(reported); - } - if let Ok(path) = env::var("UNSTABLE_RUSTDOC_TEST_PATH") { - let line = env::var("UNSTABLE_RUSTDOC_TEST_LINE").expect( - "when UNSTABLE_RUSTDOC_TEST_PATH is set \ - UNSTABLE_RUSTDOC_TEST_LINE also needs to be set", - ); - let line = isize::from_str_radix(&line, 10) - .expect("UNSTABLE_RUSTDOC_TEST_LINE needs to be an number"); - let file_name = FileName::doc_test_source_code(PathBuf::from(path), line); - Ok(Some(Input::Str { name: file_name, input: src })) - } else { - Ok(Some(Input::Str { name: FileName::anon_source_code(&src), input: src })) - } - } else { - Ok(Some(Input::File(PathBuf::from(ifile)))) - } - } else { - Ok(None) - } -} - -/// Whether to stop or continue compilation. -#[derive(Copy, Clone, Debug, Eq, PartialEq)] -pub enum Compilation { - Stop, - Continue, -} - -impl Compilation { - pub fn and_then Compilation>(self, next: F) -> Compilation { - match self { - Compilation::Stop => Compilation::Stop, - Compilation::Continue => next(), - } - } -} - -fn handle_explain(registry: Registry, code: &str, output: ErrorOutputType) { - let upper_cased_code = code.to_ascii_uppercase(); - let normalised = - if upper_cased_code.starts_with('E') { upper_cased_code } else { format!("E{code:0>4}") }; - match registry.try_find_description(&normalised) { - Ok(Some(description)) => { - let mut is_in_code_block = false; - let mut text = String::new(); - // Slice off the leading newline and print. - for line in description.lines() { - let indent_level = - line.find(|c: char| !c.is_whitespace()).unwrap_or_else(|| line.len()); - let dedented_line = &line[indent_level..]; - if dedented_line.starts_with("```") { - is_in_code_block = !is_in_code_block; - text.push_str(&line[..(indent_level + 3)]); - } else if is_in_code_block && dedented_line.starts_with("# ") { - continue; - } else { - text.push_str(line); - } - text.push('\n'); - } - if io::stdout().is_terminal() { - show_content_with_pager(&text); - } else { - print!("{text}"); - } - } - Ok(None) => { - early_error(output, &format!("no extended information for {code}")); - } - Err(InvalidErrorCode) => { - early_error(output, &format!("{code} is not a valid error code")); - } - } -} - -fn show_content_with_pager(content: &str) { - let pager_name = env::var_os("PAGER").unwrap_or_else(|| { - if cfg!(windows) { OsString::from("more.com") } else { OsString::from("less") } - }); - - let mut fallback_to_println = false; - - match Command::new(pager_name).stdin(Stdio::piped()).spawn() { - Ok(mut pager) => { - if let Some(pipe) = pager.stdin.as_mut() { - if pipe.write_all(content.as_bytes()).is_err() { - fallback_to_println = true; - } - } - - if pager.wait().is_err() { - fallback_to_println = true; - } - } - Err(_) => { - fallback_to_println = true; - } - } - - // If pager fails for whatever reason, we should still print the content - // to standard output - if fallback_to_println { - print!("{content}"); - } -} - -pub fn try_process_rlink(sess: &Session, compiler: &interface::Compiler) -> Compilation { - if sess.opts.unstable_opts.link_only { - if let Input::File(file) = &sess.io.input { - // FIXME: #![crate_type] and #![crate_name] support not implemented yet - sess.init_crate_types(collect_crate_types(sess, &[])); - let outputs = compiler.build_output_filenames(sess, &[]); - let rlink_data = fs::read(file).unwrap_or_else(|err| { - sess.emit_fatal(RlinkUnableToRead { err }); - }); - let codegen_results = match CodegenResults::deserialize_rlink(rlink_data) { - Ok(codegen) => codegen, - Err(err) => { - match err { - CodegenErrors::WrongFileType => sess.emit_fatal(RLinkWrongFileType), - CodegenErrors::EmptyVersionNumber => { - sess.emit_fatal(RLinkEmptyVersionNumber) - } - CodegenErrors::EncodingVersionMismatch { version_array, rlink_version } => { - sess.emit_fatal(RLinkEncodingVersionMismatch { - version_array, - rlink_version, - }) - } - CodegenErrors::RustcVersionMismatch { rustc_version, current_version } => { - sess.emit_fatal(RLinkRustcVersionMismatch { - rustc_version, - current_version, - }) - } - }; - } - }; - let result = compiler.codegen_backend().link(sess, codegen_results, &outputs); - abort_on_err(result, sess); - } else { - sess.emit_fatal(RlinkNotAFile {}) - } - Compilation::Stop - } else { - Compilation::Continue - } -} - -pub fn list_metadata(sess: &Session, metadata_loader: &dyn MetadataLoader) -> Compilation { - if sess.opts.unstable_opts.ls { - match sess.io.input { - Input::File(ref ifile) => { - let path = &(*ifile); - let mut v = Vec::new(); - locator::list_file_metadata(&sess.target, path, metadata_loader, &mut v).unwrap(); - println!("{}", String::from_utf8(v).unwrap()); - } - Input::Str { .. } => { - early_error(ErrorOutputType::default(), "cannot list metadata for stdin"); - } - } - return Compilation::Stop; - } - - Compilation::Continue -} - -fn print_crate_info( - codegen_backend: &dyn CodegenBackend, - sess: &Session, - parse_attrs: bool, -) -> Compilation { - use rustc_session::config::PrintRequest::*; - // NativeStaticLibs and LinkArgs are special - printed during linking - // (empty iterator returns true) - if sess.opts.prints.iter().all(|&p| p == NativeStaticLibs || p == LinkArgs) { - return Compilation::Continue; - } - - let attrs = if parse_attrs { - let result = parse_crate_attrs(sess); - match result { - Ok(attrs) => Some(attrs), - Err(mut parse_error) => { - parse_error.emit(); - return Compilation::Stop; - } - } - } else { - None - }; - for req in &sess.opts.prints { - match *req { - TargetList => { - let mut targets = rustc_target::spec::TARGETS.to_vec(); - targets.sort_unstable(); - println!("{}", targets.join("\n")); - } - Sysroot => println!("{}", sess.sysroot.display()), - TargetLibdir => println!("{}", sess.target_tlib_path.dir.display()), - TargetSpec => { - println!("{}", serde_json::to_string_pretty(&sess.target.to_json()).unwrap()); - } - FileNames | CrateName => { - let attrs = attrs.as_ref().unwrap(); - let t_outputs = rustc_interface::util::build_output_filenames(attrs, sess); - let id = rustc_session::output::find_crate_name(sess, attrs); - if *req == PrintRequest::CrateName { - println!("{id}"); - continue; - } - let crate_types = collect_crate_types(sess, attrs); - for &style in &crate_types { - let fname = - rustc_session::output::filename_for_input(sess, style, id, &t_outputs); - println!("{}", fname.file_name().unwrap().to_string_lossy()); - } - } - Cfg => { - let mut cfgs = sess - .parse_sess - .config - .iter() - .filter_map(|&(name, value)| { - // Note that crt-static is a specially recognized cfg - // directive that's printed out here as part of - // rust-lang/rust#37406, but in general the - // `target_feature` cfg is gated under - // rust-lang/rust#29717. For now this is just - // specifically allowing the crt-static cfg and that's - // it, this is intended to get into Cargo and then go - // through to build scripts. - if (name != sym::target_feature || value != Some(sym::crt_dash_static)) - && !sess.is_nightly_build() - && find_gated_cfg(|cfg_sym| cfg_sym == name).is_some() - { - return None; - } - - if let Some(value) = value { - Some(format!("{name}=\"{value}\"")) - } else { - Some(name.to_string()) - } - }) - .collect::>(); - - cfgs.sort(); - for cfg in cfgs { - println!("{cfg}"); - } - } - CallingConventions => { - let mut calling_conventions = rustc_target::spec::abi::all_names(); - calling_conventions.sort_unstable(); - println!("{}", calling_conventions.join("\n")); - } - RelocationModels - | CodeModels - | TlsModels - | TargetCPUs - | StackProtectorStrategies - | TargetFeatures => { - codegen_backend.print(*req, sess); - } - // Any output here interferes with Cargo's parsing of other printed output - NativeStaticLibs => {} - LinkArgs => {} - SplitDebuginfo => { - use rustc_target::spec::SplitDebuginfo::{Off, Packed, Unpacked}; - - for split in &[Off, Packed, Unpacked] { - let stable = sess.target.options.supported_split_debuginfo.contains(split); - let unstable_ok = sess.unstable_options(); - if stable || unstable_ok { - println!("{split}"); - } - } - } - } - } - Compilation::Stop -} - -/// Prints version information -/// -/// NOTE: this is a macro to support drivers built at a different time than the main `rustc_driver` crate. -pub macro version($binary: literal, $matches: expr) { - fn unw(x: Option<&str>) -> &str { - x.unwrap_or("unknown") - } - $crate::version_at_macro_invocation( - $binary, - $matches, - unw(option_env!("CFG_VERSION")), - unw(option_env!("CFG_VER_HASH")), - unw(option_env!("CFG_VER_DATE")), - unw(option_env!("CFG_RELEASE")), - ) -} - -#[doc(hidden)] // use the macro instead -pub fn version_at_macro_invocation( - binary: &str, - matches: &getopts::Matches, - version: &str, - commit_hash: &str, - commit_date: &str, - release: &str, -) { - let verbose = matches.opt_present("verbose"); - - println!("{binary} {version}"); - - if verbose { - println!("binary: {binary}"); - println!("commit-hash: {commit_hash}"); - println!("commit-date: {commit_date}"); - println!("host: {}", config::host_triple()); - println!("release: {release}"); - - let debug_flags = matches.opt_strs("Z"); - let backend_name = debug_flags.iter().find_map(|x| x.strip_prefix("codegen-backend=")); - get_codegen_backend(&None, backend_name).print_version(); - } -} - -fn usage(verbose: bool, include_unstable_options: bool, nightly_build: bool) { - let groups = if verbose { config::rustc_optgroups() } else { config::rustc_short_optgroups() }; - let mut options = getopts::Options::new(); - for option in groups.iter().filter(|x| include_unstable_options || x.is_stable()) { - (option.apply)(&mut options); - } - let message = "Usage: rustc [OPTIONS] INPUT"; - let nightly_help = if nightly_build { - "\n -Z help Print unstable compiler options" - } else { - "" - }; - let verbose_help = if verbose { - "" - } else { - "\n --help -v Print the full set of options rustc accepts" - }; - let at_path = if verbose { - " @path Read newline separated options from `path`\n" - } else { - "" - }; - println!( - "{options}{at_path}\nAdditional help: - -C help Print codegen options - -W help \ - Print 'lint' options and default settings{nightly}{verbose}\n", - options = options.usage(message), - at_path = at_path, - nightly = nightly_help, - verbose = verbose_help - ); -} - -fn print_wall_help() { - println!( - " -The flag `-Wall` does not exist in `rustc`. Most useful lints are enabled by -default. Use `rustc -W help` to see all available lints. It's more common to put -warning settings in the crate root using `#![warn(LINT_NAME)]` instead of using -the command line flag directly. -" - ); -} - -/// Write to stdout lint command options, together with a list of all available lints -pub fn describe_lints(sess: &Session, lint_store: &LintStore, loaded_plugins: bool) { - println!( - " -Available lint options: - -W Warn about - -A \ - Allow - -D Deny - -F Forbid \ - (deny and all attempts to override) - -" - ); - - fn sort_lints(sess: &Session, mut lints: Vec<&'static Lint>) -> Vec<&'static Lint> { - // The sort doesn't case-fold but it's doubtful we care. - lints.sort_by_cached_key(|x: &&Lint| (x.default_level(sess.edition()), x.name)); - lints - } - - fn sort_lint_groups( - lints: Vec<(&'static str, Vec, bool)>, - ) -> Vec<(&'static str, Vec)> { - let mut lints: Vec<_> = lints.into_iter().map(|(x, y, _)| (x, y)).collect(); - lints.sort_by_key(|l| l.0); - lints - } - - let (plugin, builtin): (Vec<_>, _) = - lint_store.get_lints().iter().cloned().partition(|&lint| lint.is_plugin); - let plugin = sort_lints(sess, plugin); - let builtin = sort_lints(sess, builtin); - - let (plugin_groups, builtin_groups): (Vec<_>, _) = - lint_store.get_lint_groups().partition(|&(.., p)| p); - let plugin_groups = sort_lint_groups(plugin_groups); - let builtin_groups = sort_lint_groups(builtin_groups); - - let max_name_len = - plugin.iter().chain(&builtin).map(|&s| s.name.chars().count()).max().unwrap_or(0); - let padded = |x: &str| { - let mut s = " ".repeat(max_name_len - x.chars().count()); - s.push_str(x); - s - }; - - println!("Lint checks provided by rustc:\n"); - - let print_lints = |lints: Vec<&Lint>| { - println!(" {} {:7.7} {}", padded("name"), "default", "meaning"); - println!(" {} {:7.7} {}", padded("----"), "-------", "-------"); - for lint in lints { - let name = lint.name_lower().replace('_', "-"); - println!( - " {} {:7.7} {}", - padded(&name), - lint.default_level(sess.edition()).as_str(), - lint.desc - ); - } - println!("\n"); - }; - - print_lints(builtin); - - let max_name_len = max( - "warnings".len(), - plugin_groups - .iter() - .chain(&builtin_groups) - .map(|&(s, _)| s.chars().count()) - .max() - .unwrap_or(0), - ); - - let padded = |x: &str| { - let mut s = " ".repeat(max_name_len - x.chars().count()); - s.push_str(x); - s - }; - - println!("Lint groups provided by rustc:\n"); - - let print_lint_groups = |lints: Vec<(&'static str, Vec)>, all_warnings| { - println!(" {} sub-lints", padded("name")); - println!(" {} ---------", padded("----")); - - if all_warnings { - println!(" {} all lints that are set to issue warnings", padded("warnings")); - } - - for (name, to) in lints { - let name = name.to_lowercase().replace('_', "-"); - let desc = to - .into_iter() - .map(|x| x.to_string().replace('_', "-")) - .collect::>() - .join(", "); - println!(" {} {}", padded(&name), desc); - } - println!("\n"); - }; - - print_lint_groups(builtin_groups, true); - - match (loaded_plugins, plugin.len(), plugin_groups.len()) { - (false, 0, _) | (false, _, 0) => { - println!("Lint tools like Clippy can provide additional lints and lint groups."); - } - (false, ..) => panic!("didn't load lint plugins but got them anyway!"), - (true, 0, 0) => println!("This crate does not load any lint plugins or lint groups."), - (true, l, g) => { - if l > 0 { - println!("Lint checks provided by plugins loaded by this crate:\n"); - print_lints(plugin); - } - if g > 0 { - println!("Lint groups provided by plugins loaded by this crate:\n"); - print_lint_groups(plugin_groups, false); - } - } - } -} - -fn describe_debug_flags() { - println!("\nAvailable options:\n"); - print_flag_list("-Z", config::Z_OPTIONS); -} - -fn describe_codegen_flags() { - println!("\nAvailable codegen options:\n"); - print_flag_list("-C", config::CG_OPTIONS); -} - -pub fn print_flag_list( - cmdline_opt: &str, - flag_list: &[(&'static str, T, &'static str, &'static str)], -) { - let max_len = flag_list.iter().map(|&(name, _, _, _)| name.chars().count()).max().unwrap_or(0); - - for &(name, _, _, desc) in flag_list { - println!( - " {} {:>width$}=val -- {}", - cmdline_opt, - name.replace('_', "-"), - desc, - width = max_len - ); - } -} - -/// Process command line options. Emits messages as appropriate. If compilation -/// should continue, returns a getopts::Matches object parsed from args, -/// otherwise returns `None`. -/// -/// The compiler's handling of options is a little complicated as it ties into -/// our stability story. The current intention of each compiler option is to -/// have one of two modes: -/// -/// 1. An option is stable and can be used everywhere. -/// 2. An option is unstable, and can only be used on nightly. -/// -/// Like unstable library and language features, however, unstable options have -/// always required a form of "opt in" to indicate that you're using them. This -/// provides the easy ability to scan a code base to check to see if anything -/// unstable is being used. Currently, this "opt in" is the `-Z` "zed" flag. -/// -/// All options behind `-Z` are considered unstable by default. Other top-level -/// options can also be considered unstable, and they were unlocked through the -/// `-Z unstable-options` flag. Note that `-Z` remains to be the root of -/// instability in both cases, though. -/// -/// So with all that in mind, the comments below have some more detail about the -/// contortions done here to get things to work out correctly. -pub fn handle_options(args: &[String]) -> Option { - // Throw away the first argument, the name of the binary - let args = &args[1..]; - - if args.is_empty() { - // user did not write `-v` nor `-Z unstable-options`, so do not - // include that extra information. - let nightly_build = - rustc_feature::UnstableFeatures::from_environment(None).is_nightly_build(); - usage(false, false, nightly_build); - return None; - } - - // Parse with *all* options defined in the compiler, we don't worry about - // option stability here we just want to parse as much as possible. - let mut options = getopts::Options::new(); - for option in config::rustc_optgroups() { - (option.apply)(&mut options); - } - let matches = options.parse(args).unwrap_or_else(|e| { - let msg = match e { - getopts::Fail::UnrecognizedOption(ref opt) => CG_OPTIONS - .iter() - .map(|&(name, ..)| ('C', name)) - .chain(Z_OPTIONS.iter().map(|&(name, ..)| ('Z', name))) - .find(|&(_, name)| *opt == name.replace('_', "-")) - .map(|(flag, _)| format!("{e}. Did you mean `-{flag} {opt}`?")), - _ => None, - }; - early_error(ErrorOutputType::default(), &msg.unwrap_or_else(|| e.to_string())); - }); - - // For all options we just parsed, we check a few aspects: - // - // * If the option is stable, we're all good - // * If the option wasn't passed, we're all good - // * If `-Z unstable-options` wasn't passed (and we're not a -Z option - // ourselves), then we require the `-Z unstable-options` flag to unlock - // this option that was passed. - // * If we're a nightly compiler, then unstable options are now unlocked, so - // we're good to go. - // * Otherwise, if we're an unstable option then we generate an error - // (unstable option being used on stable) - nightly_options::check_nightly_options(&matches, &config::rustc_optgroups()); - - if matches.opt_present("h") || matches.opt_present("help") { - // Only show unstable options in --help if we accept unstable options. - let unstable_enabled = nightly_options::is_unstable_enabled(&matches); - let nightly_build = nightly_options::match_is_nightly_build(&matches); - usage(matches.opt_present("verbose"), unstable_enabled, nightly_build); - return None; - } - - // Handle the special case of -Wall. - let wall = matches.opt_strs("W"); - if wall.iter().any(|x| *x == "all") { - print_wall_help(); - rustc_errors::FatalError.raise(); - } - - // Don't handle -W help here, because we might first load plugins. - let debug_flags = matches.opt_strs("Z"); - if debug_flags.iter().any(|x| *x == "help") { - describe_debug_flags(); - return None; - } - - let cg_flags = matches.opt_strs("C"); - - if cg_flags.iter().any(|x| *x == "help") { - describe_codegen_flags(); - return None; - } - - if cg_flags.iter().any(|x| *x == "no-stack-check") { - early_warn( - ErrorOutputType::default(), - "the --no-stack-check flag is deprecated and does nothing", - ); - } - - if cg_flags.iter().any(|x| *x == "passes=list") { - let backend_name = debug_flags.iter().find_map(|x| x.strip_prefix("codegen-backend=")); - get_codegen_backend(&None, backend_name).print_passes(); - return None; - } - - if matches.opt_present("version") { - version!("rustc", &matches); - return None; - } - - Some(matches) -} - -fn parse_crate_attrs<'a>(sess: &'a Session) -> PResult<'a, ast::AttrVec> { - match &sess.io.input { - Input::File(ifile) => rustc_parse::parse_crate_attrs_from_file(ifile, &sess.parse_sess), - Input::Str { name, input } => rustc_parse::parse_crate_attrs_from_source_str( - name.clone(), - input.clone(), - &sess.parse_sess, - ), - } -} - -/// Gets a list of extra command-line flags provided by the user, as strings. -/// -/// This function is used during ICEs to show more information useful for -/// debugging, since some ICEs only happens with non-default compiler flags -/// (and the users don't always report them). -fn extra_compiler_flags() -> Option<(Vec, bool)> { - let mut args = env::args_os().map(|arg| arg.to_string_lossy().to_string()).peekable(); - - let mut result = Vec::new(); - let mut excluded_cargo_defaults = false; - while let Some(arg) = args.next() { - if let Some(a) = ICE_REPORT_COMPILER_FLAGS.iter().find(|a| arg.starts_with(*a)) { - let content = if arg.len() == a.len() { - // A space-separated option, like `-C incremental=foo` or `--crate-type rlib` - match args.next() { - Some(arg) => arg.to_string(), - None => continue, - } - } else if arg.get(a.len()..a.len() + 1) == Some("=") { - // An equals option, like `--crate-type=rlib` - arg[a.len() + 1..].to_string() - } else { - // A non-space option, like `-Cincremental=foo` - arg[a.len()..].to_string() - }; - let option = content.split_once('=').map(|s| s.0).unwrap_or(&content); - if ICE_REPORT_COMPILER_FLAGS_EXCLUDE.iter().any(|exc| option == *exc) { - excluded_cargo_defaults = true; - } else { - result.push(a.to_string()); - match ICE_REPORT_COMPILER_FLAGS_STRIP_VALUE.iter().find(|s| option == **s) { - Some(s) => result.push(format!("{s}=[REDACTED]")), - None => result.push(content), - } - } - } - } - - if !result.is_empty() { Some((result, excluded_cargo_defaults)) } else { None } -} - -/// Runs a closure and catches unwinds triggered by fatal errors. -/// -/// The compiler currently unwinds with a special sentinel value to abort -/// compilation on fatal errors. This function catches that sentinel and turns -/// the panic into a `Result` instead. -pub fn catch_fatal_errors R, R>(f: F) -> Result { - catch_unwind(panic::AssertUnwindSafe(f)).map_err(|value| { - if value.is::() { - ErrorGuaranteed::unchecked_claim_error_was_emitted() - } else { - panic::resume_unwind(value); - } - }) -} - -/// Variant of `catch_fatal_errors` for the `interface::Result` return type -/// that also computes the exit code. -pub fn catch_with_exit_code(f: impl FnOnce() -> interface::Result<()>) -> i32 { - let result = catch_fatal_errors(f).and_then(|result| result); - match result { - Ok(()) => EXIT_SUCCESS, - Err(_) => EXIT_FAILURE, - } -} - -static DEFAULT_HOOK: LazyLock) + Sync + Send + 'static>> = - LazyLock::new(|| { - let hook = panic::take_hook(); - panic::set_hook(Box::new(|info| { - // If the error was caused by a broken pipe then this is not a bug. - // Write the error and return immediately. See #98700. - #[cfg(windows)] - if let Some(msg) = info.payload().downcast_ref::() { - if msg.starts_with("failed printing to stdout: ") && msg.ends_with("(os error 232)") - { - early_error_no_abort(ErrorOutputType::default(), &msg); - return; - } - }; - - // Invoke the default handler, which prints the actual panic message and optionally a backtrace - // Don't do this for delayed bugs, which already emit their own more useful backtrace. - if !info.payload().is::() { - (*DEFAULT_HOOK)(info); - - // Separate the output with an empty line - eprintln!(); - } - - // Print the ICE message - report_ice(info, BUG_REPORT_URL); - })); - hook - }); - -/// Prints the ICE message, including query stack, but without backtrace. -/// -/// The message will point the user at `bug_report_url` to report the ICE. -/// -/// When `install_ice_hook` is called, this function will be called as the panic -/// hook. -pub fn report_ice(info: &panic::PanicInfo<'_>, bug_report_url: &str) { - let fallback_bundle = - rustc_errors::fallback_fluent_bundle(rustc_errors::DEFAULT_LOCALE_RESOURCES, false); - let emitter = Box::new(rustc_errors::emitter::EmitterWriter::stderr( - rustc_errors::ColorConfig::Auto, - None, - None, - fallback_bundle, - false, - false, - None, - false, - false, - )); - let handler = rustc_errors::Handler::with_emitter(true, None, emitter); - - // a .span_bug or .bug call has already printed what - // it wants to print. - if !info.payload().is::() - && !info.payload().is::() - { - let mut d = rustc_errors::Diagnostic::new(rustc_errors::Level::Bug, "unexpected panic"); - handler.emit_diagnostic(&mut d); - } - - handler.emit_note(session_diagnostics::Ice); - handler.emit_note(session_diagnostics::IceBugReport { bug_report_url }); - handler.emit_note(session_diagnostics::IceVersion { - version: util::version_str!().unwrap_or("unknown_version"), - triple: config::host_triple(), - }); - - if let Some((flags, excluded_cargo_defaults)) = extra_compiler_flags() { - handler.emit_note(session_diagnostics::IceFlags { flags: flags.join(" ") }); - if excluded_cargo_defaults { - handler.emit_note(session_diagnostics::IceExcludeCargoDefaults); - } - } - - // If backtraces are enabled, also print the query stack - let backtrace = env::var_os("RUST_BACKTRACE").map_or(false, |x| &x != "0"); - - let num_frames = if backtrace { None } else { Some(2) }; - - interface::try_print_query_stack(&handler, num_frames); - - #[cfg(windows)] - unsafe { - if env::var("RUSTC_BREAK_ON_ICE").is_ok() { - // Trigger a debugger if we crashed during bootstrap - winapi::um::debugapi::DebugBreak(); - } - } -} - -/// Installs a panic hook that will print the ICE message on unexpected panics. -/// -/// A custom rustc driver can skip calling this to set up a custom ICE hook. -pub fn install_ice_hook() { - // If the user has not explicitly overridden "RUST_BACKTRACE", then produce - // full backtraces. When a compiler ICE happens, we want to gather - // as much information as possible to present in the issue opened - // by the user. Compiler developers and other rustc users can - // opt in to less-verbose backtraces by manually setting "RUST_BACKTRACE" - // (e.g. `RUST_BACKTRACE=1`) - if std::env::var("RUST_BACKTRACE").is_err() { - std::env::set_var("RUST_BACKTRACE", "full"); - } - LazyLock::force(&DEFAULT_HOOK); -} - -/// This allows tools to enable rust logging without having to magically match rustc's -/// tracing crate version. -pub fn init_rustc_env_logger() { - init_rustc_env_logger_with_backtrace_option(&None); -} - -/// This allows tools to enable rust logging without having to magically match rustc's -/// tracing crate version. In contrast to `init_rustc_env_logger` it allows you to -/// choose a target module you wish to show backtraces along with its logging. -pub fn init_rustc_env_logger_with_backtrace_option(backtrace_target: &Option) { - if let Err(error) = rustc_log::init_rustc_env_logger_with_backtrace_option(backtrace_target) { - early_error(ErrorOutputType::default(), &error.to_string()); - } -} - -/// This allows tools to enable rust logging without having to magically match rustc's -/// tracing crate version. In contrast to `init_rustc_env_logger` it allows you to choose an env var -/// other than `RUSTC_LOG`. -pub fn init_env_logger(env: &str) { - if let Err(error) = rustc_log::init_env_logger(env) { - early_error(ErrorOutputType::default(), &error.to_string()); - } -} - -#[cfg(all(unix, any(target_env = "gnu", target_os = "macos")))] -mod signal_handler { - extern "C" { - fn backtrace_symbols_fd( - buffer: *const *mut libc::c_void, - size: libc::c_int, - fd: libc::c_int, - ); - } - - extern "C" fn print_stack_trace(_: libc::c_int) { - const MAX_FRAMES: usize = 256; - static mut STACK_TRACE: [*mut libc::c_void; MAX_FRAMES] = - [std::ptr::null_mut(); MAX_FRAMES]; - unsafe { - let depth = libc::backtrace(STACK_TRACE.as_mut_ptr(), MAX_FRAMES as i32); - if depth == 0 { - return; - } - backtrace_symbols_fd(STACK_TRACE.as_ptr(), depth, 2); - } - } - - /// When an error signal (such as SIGABRT or SIGSEGV) is delivered to the - /// process, print a stack trace and then exit. - pub(super) fn install() { - unsafe { - const ALT_STACK_SIZE: usize = libc::MINSIGSTKSZ + 64 * 1024; - let mut alt_stack: libc::stack_t = std::mem::zeroed(); - alt_stack.ss_sp = - std::alloc::alloc(std::alloc::Layout::from_size_align(ALT_STACK_SIZE, 1).unwrap()) - as *mut libc::c_void; - alt_stack.ss_size = ALT_STACK_SIZE; - libc::sigaltstack(&alt_stack, std::ptr::null_mut()); - - let mut sa: libc::sigaction = std::mem::zeroed(); - sa.sa_sigaction = print_stack_trace as libc::sighandler_t; - sa.sa_flags = libc::SA_NODEFER | libc::SA_RESETHAND | libc::SA_ONSTACK; - libc::sigemptyset(&mut sa.sa_mask); - libc::sigaction(libc::SIGSEGV, &sa, std::ptr::null_mut()); - } - } -} - -#[cfg(not(all(unix, any(target_env = "gnu", target_os = "macos"))))] -mod signal_handler { - pub(super) fn install() {} -} - -pub fn main() -> ! { - let start_time = Instant::now(); - let start_rss = get_resident_set_size(); - signal_handler::install(); - let mut callbacks = TimePassesCallbacks::default(); - install_ice_hook(); - let exit_code = catch_with_exit_code(|| { - let args = env::args_os() - .enumerate() - .map(|(i, arg)| { - arg.into_string().unwrap_or_else(|arg| { - early_error( - ErrorOutputType::default(), - &format!("argument {i} is not valid Unicode: {arg:?}"), - ) - }) - }) - .collect::>(); - RunCompiler::new(&args, &mut callbacks).run() - }); - - if callbacks.time_passes { - let end_rss = get_resident_set_size(); - print_time_passes_entry("total", start_time.elapsed(), start_rss, end_rss); - } - - process::exit(exit_code) -} +pub use rustc_driver_impl::*; diff --git a/compiler/rustc_driver_impl/Cargo.toml b/compiler/rustc_driver_impl/Cargo.toml new file mode 100644 index 000000000000..af85b12c52b2 --- /dev/null +++ b/compiler/rustc_driver_impl/Cargo.toml @@ -0,0 +1,44 @@ +[package] +name = "rustc_driver_impl" +version = "0.0.0" +edition = "2021" + +[lib] + +[dependencies] +tracing = { version = "0.1.35" } +serde_json = "1.0.59" +rustc_log = { path = "../rustc_log" } +rustc_middle = { path = "../rustc_middle" } +rustc_ast_pretty = { path = "../rustc_ast_pretty" } +rustc_target = { path = "../rustc_target" } +rustc_lint = { path = "../rustc_lint" } +rustc_data_structures = { path = "../rustc_data_structures" } +rustc_errors = { path = "../rustc_errors" } +rustc_feature = { path = "../rustc_feature" } +rustc_hir = { path = "../rustc_hir" } +rustc_hir_pretty = { path = "../rustc_hir_pretty" } +rustc_macros = { path = "../rustc_macros" } +rustc_metadata = { path = "../rustc_metadata" } +rustc_parse = { path = "../rustc_parse" } +rustc_plugin_impl = { path = "../rustc_plugin_impl" } +rustc_save_analysis = { path = "../rustc_save_analysis" } +rustc_codegen_ssa = { path = "../rustc_codegen_ssa" } +rustc_session = { path = "../rustc_session" } +rustc_error_codes = { path = "../rustc_error_codes" } +rustc_interface = { path = "../rustc_interface" } +rustc_ast = { path = "../rustc_ast" } +rustc_span = { path = "../rustc_span" } +rustc_hir_analysis = { path = "../rustc_hir_analysis" } + +[target.'cfg(unix)'.dependencies] +libc = "0.2" + +[target.'cfg(windows)'.dependencies] +winapi = { version = "0.3", features = ["consoleapi", "debugapi", "processenv"] } + +[features] +llvm = ['rustc_interface/llvm'] +max_level_info = ['rustc_log/max_level_info'] +rustc_use_parallel_compiler = ['rustc_data_structures/rustc_use_parallel_compiler', 'rustc_interface/rustc_use_parallel_compiler', + 'rustc_middle/rustc_use_parallel_compiler'] diff --git a/compiler/rustc_driver/README.md b/compiler/rustc_driver_impl/README.md similarity index 100% rename from compiler/rustc_driver/README.md rename to compiler/rustc_driver_impl/README.md diff --git a/compiler/rustc_driver/src/args.rs b/compiler/rustc_driver_impl/src/args.rs similarity index 100% rename from compiler/rustc_driver/src/args.rs rename to compiler/rustc_driver_impl/src/args.rs diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs new file mode 100644 index 000000000000..02e0b042ad26 --- /dev/null +++ b/compiler/rustc_driver_impl/src/lib.rs @@ -0,0 +1,1353 @@ +//! The Rust compiler. +//! +//! # Note +//! +//! This API is completely unstable and subject to change. + +#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")] +#![feature(is_terminal)] +#![feature(once_cell)] +#![feature(decl_macro)] +#![recursion_limit = "256"] +#![allow(rustc::potential_query_instability)] +#![deny(rustc::untranslatable_diagnostic)] +#![deny(rustc::diagnostic_outside_of_impl)] + +#[macro_use] +extern crate tracing; + +pub extern crate rustc_plugin_impl as plugin; + +use rustc_ast as ast; +use rustc_codegen_ssa::{traits::CodegenBackend, CodegenErrors, CodegenResults}; +use rustc_data_structures::profiling::{get_resident_set_size, print_time_passes_entry}; +use rustc_data_structures::sync::SeqCst; +use rustc_errors::registry::{InvalidErrorCode, Registry}; +use rustc_errors::{ErrorGuaranteed, PResult}; +use rustc_feature::find_gated_cfg; +use rustc_hir::def_id::LOCAL_CRATE; +use rustc_interface::util::{self, collect_crate_types, get_codegen_backend}; +use rustc_interface::{interface, Queries}; +use rustc_lint::LintStore; +use rustc_metadata::locator; +use rustc_save_analysis as save; +use rustc_save_analysis::DumpHandler; +use rustc_session::config::{nightly_options, CG_OPTIONS, Z_OPTIONS}; +use rustc_session::config::{ErrorOutputType, Input, OutputType, PrintRequest, TrimmedDefPaths}; +use rustc_session::cstore::MetadataLoader; +use rustc_session::getopts; +use rustc_session::lint::{Lint, LintId}; +use rustc_session::{config, Session}; +use rustc_session::{early_error, early_error_no_abort, early_warn}; +use rustc_span::source_map::{FileLoader, FileName}; +use rustc_span::symbol::sym; +use rustc_target::json::ToJson; + +use std::cmp::max; +use std::env; +use std::ffi::OsString; +use std::fs; +use std::io::{self, IsTerminal, Read, Write}; +use std::panic::{self, catch_unwind}; +use std::path::PathBuf; +use std::process::{self, Command, Stdio}; +use std::str; +use std::sync::LazyLock; +use std::time::Instant; + +pub mod args; +pub mod pretty; +mod session_diagnostics; + +use crate::session_diagnostics::{ + RLinkEmptyVersionNumber, RLinkEncodingVersionMismatch, RLinkRustcVersionMismatch, + RLinkWrongFileType, RlinkNotAFile, RlinkUnableToRead, +}; + +/// Exit status code used for successful compilation and help output. +pub const EXIT_SUCCESS: i32 = 0; + +/// Exit status code used for compilation failures and invalid flags. +pub const EXIT_FAILURE: i32 = 1; + +const BUG_REPORT_URL: &str = "https://github.com/rust-lang/rust/issues/new\ + ?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md"; + +const ICE_REPORT_COMPILER_FLAGS: &[&str] = &["-Z", "-C", "--crate-type"]; + +const ICE_REPORT_COMPILER_FLAGS_EXCLUDE: &[&str] = &["metadata", "extra-filename"]; + +const ICE_REPORT_COMPILER_FLAGS_STRIP_VALUE: &[&str] = &["incremental"]; + +pub fn abort_on_err(result: Result, sess: &Session) -> T { + match result { + Err(..) => { + sess.abort_if_errors(); + panic!("error reported but abort_if_errors didn't abort???"); + } + Ok(x) => x, + } +} + +pub trait Callbacks { + /// Called before creating the compiler instance + fn config(&mut self, _config: &mut interface::Config) {} + /// Called after parsing. Return value instructs the compiler whether to + /// continue the compilation afterwards (defaults to `Compilation::Continue`) + fn after_parsing<'tcx>( + &mut self, + _compiler: &interface::Compiler, + _queries: &'tcx Queries<'tcx>, + ) -> Compilation { + Compilation::Continue + } + /// Called after expansion. Return value instructs the compiler whether to + /// continue the compilation afterwards (defaults to `Compilation::Continue`) + fn after_expansion<'tcx>( + &mut self, + _compiler: &interface::Compiler, + _queries: &'tcx Queries<'tcx>, + ) -> Compilation { + Compilation::Continue + } + /// Called after analysis. Return value instructs the compiler whether to + /// continue the compilation afterwards (defaults to `Compilation::Continue`) + fn after_analysis<'tcx>( + &mut self, + _compiler: &interface::Compiler, + _queries: &'tcx Queries<'tcx>, + ) -> Compilation { + Compilation::Continue + } +} + +#[derive(Default)] +pub struct TimePassesCallbacks { + time_passes: bool, +} + +impl Callbacks for TimePassesCallbacks { + // JUSTIFICATION: the session doesn't exist at this point. + #[allow(rustc::bad_opt_access)] + fn config(&mut self, config: &mut interface::Config) { + // If a --print=... option has been given, we don't print the "total" + // time because it will mess up the --print output. See #64339. + // + self.time_passes = config.opts.prints.is_empty() && config.opts.unstable_opts.time_passes; + config.opts.trimmed_def_paths = TrimmedDefPaths::GoodPath; + } +} + +pub fn diagnostics_registry() -> Registry { + Registry::new(rustc_error_codes::DIAGNOSTICS) +} + +/// This is the primary entry point for rustc. +pub struct RunCompiler<'a, 'b> { + at_args: &'a [String], + callbacks: &'b mut (dyn Callbacks + Send), + file_loader: Option>, + make_codegen_backend: + Option Box + Send>>, +} + +impl<'a, 'b> RunCompiler<'a, 'b> { + pub fn new(at_args: &'a [String], callbacks: &'b mut (dyn Callbacks + Send)) -> Self { + Self { at_args, callbacks, file_loader: None, make_codegen_backend: None } + } + + /// Set a custom codegen backend. + /// + /// Has no uses within this repository, but is used by bjorn3 for "the + /// hotswapping branch of cg_clif" for "setting the codegen backend from a + /// custom driver where the custom codegen backend has arbitrary data." + /// (See #102759.) + pub fn set_make_codegen_backend( + &mut self, + make_codegen_backend: Option< + Box Box + Send>, + >, + ) -> &mut Self { + self.make_codegen_backend = make_codegen_backend; + self + } + + /// Load files from sources other than the file system. + /// + /// Has no uses within this repository, but may be used in the future by + /// bjorn3 for "hooking rust-analyzer's VFS into rustc at some point for + /// running rustc without having to save". (See #102759.) + pub fn set_file_loader( + &mut self, + file_loader: Option>, + ) -> &mut Self { + self.file_loader = file_loader; + self + } + + /// Parse args and run the compiler. + pub fn run(self) -> interface::Result<()> { + run_compiler(self.at_args, self.callbacks, self.file_loader, self.make_codegen_backend) + } +} + +fn run_compiler( + at_args: &[String], + callbacks: &mut (dyn Callbacks + Send), + file_loader: Option>, + make_codegen_backend: Option< + Box Box + Send>, + >, +) -> interface::Result<()> { + let args = args::arg_expand_all(at_args); + + let Some(matches) = handle_options(&args) else { return Ok(()) }; + + let sopts = config::build_session_options(&matches); + + if let Some(ref code) = matches.opt_str("explain") { + handle_explain(diagnostics_registry(), code, sopts.error_format); + return Ok(()); + } + + let cfg = interface::parse_cfgspecs(matches.opt_strs("cfg")); + let check_cfg = interface::parse_check_cfg(matches.opt_strs("check-cfg")); + let (odir, ofile) = make_output(&matches); + let mut config = interface::Config { + opts: sopts, + crate_cfg: cfg, + crate_check_cfg: check_cfg, + input: Input::File(PathBuf::new()), + output_file: ofile, + output_dir: odir, + file_loader, + lint_caps: Default::default(), + parse_sess_created: None, + register_lints: None, + override_queries: None, + make_codegen_backend, + registry: diagnostics_registry(), + }; + + if !tracing::dispatcher::has_been_set() { + init_rustc_env_logger_with_backtrace_option(&config.opts.unstable_opts.log_backtrace); + } + + match make_input(config.opts.error_format, &matches.free) { + Err(reported) => return Err(reported), + Ok(Some(input)) => { + config.input = input; + + callbacks.config(&mut config); + } + Ok(None) => match matches.free.len() { + 0 => { + callbacks.config(&mut config); + interface::run_compiler(config, |compiler| { + let sopts = &compiler.session().opts; + if sopts.describe_lints { + let mut lint_store = + rustc_lint::new_lint_store(compiler.session().enable_internal_lints()); + let registered_lints = + if let Some(register_lints) = compiler.register_lints() { + register_lints(compiler.session(), &mut lint_store); + true + } else { + false + }; + describe_lints(compiler.session(), &lint_store, registered_lints); + return; + } + let should_stop = + print_crate_info(&***compiler.codegen_backend(), compiler.session(), false); + + if should_stop == Compilation::Stop { + return; + } + early_error(sopts.error_format, "no input filename given") + }); + return Ok(()); + } + 1 => panic!("make_input should have provided valid inputs"), + _ => early_error( + config.opts.error_format, + &format!( + "multiple input filenames provided (first two filenames are `{}` and `{}`)", + matches.free[0], matches.free[1], + ), + ), + }, + }; + + interface::run_compiler(config, |compiler| { + let sess = compiler.session(); + let should_stop = print_crate_info(&***compiler.codegen_backend(), sess, true) + .and_then(|| list_metadata(sess, &*compiler.codegen_backend().metadata_loader())) + .and_then(|| try_process_rlink(sess, compiler)); + + if should_stop == Compilation::Stop { + return sess.compile_status(); + } + + let linker = compiler.enter(|queries| { + let early_exit = || sess.compile_status().map(|_| None); + queries.parse()?; + + if let Some(ppm) = &sess.opts.pretty { + if ppm.needs_ast_map() { + queries.global_ctxt()?.enter(|tcx| { + pretty::print_after_hir_lowering(tcx, *ppm); + Ok(()) + })?; + } else { + let krate = queries.parse()?.steal(); + pretty::print_after_parsing(sess, &krate, *ppm); + } + trace!("finished pretty-printing"); + return early_exit(); + } + + if callbacks.after_parsing(compiler, queries) == Compilation::Stop { + return early_exit(); + } + + if sess.opts.unstable_opts.parse_only || sess.opts.unstable_opts.show_span.is_some() { + return early_exit(); + } + + { + let plugins = queries.register_plugins()?; + let (_, lint_store) = &*plugins.borrow(); + + // Lint plugins are registered; now we can process command line flags. + if sess.opts.describe_lints { + describe_lints(sess, lint_store, true); + return early_exit(); + } + } + + let mut gctxt = queries.global_ctxt()?; + if callbacks.after_expansion(compiler, queries) == Compilation::Stop { + return early_exit(); + } + + // Make sure the `output_filenames` query is run for its side + // effects of writing the dep-info and reporting errors. + gctxt.enter(|tcx| tcx.output_filenames(())); + + if sess.opts.output_types.contains_key(&OutputType::DepInfo) + && sess.opts.output_types.len() == 1 + { + return early_exit(); + } + + if sess.opts.unstable_opts.no_analysis { + return early_exit(); + } + + gctxt.enter(|tcx| { + let result = tcx.analysis(()); + if sess.opts.unstable_opts.save_analysis { + let crate_name = tcx.crate_name(LOCAL_CRATE); + sess.time("save_analysis", || { + save::process_crate( + tcx, + crate_name, + &sess.io.input, + None, + DumpHandler::new(sess.io.output_dir.as_deref(), crate_name), + ) + }); + } + result + })?; + + drop(gctxt); + + if callbacks.after_analysis(compiler, queries) == Compilation::Stop { + return early_exit(); + } + + queries.ongoing_codegen()?; + + if sess.opts.unstable_opts.print_type_sizes { + sess.code_stats.print_type_sizes(); + } + + let linker = queries.linker()?; + Ok(Some(linker)) + })?; + + if let Some(linker) = linker { + let _timer = sess.timer("link"); + linker.link()? + } + + if sess.opts.unstable_opts.perf_stats { + sess.print_perf_stats(); + } + + if sess.opts.unstable_opts.print_fuel.is_some() { + eprintln!( + "Fuel used by {}: {}", + sess.opts.unstable_opts.print_fuel.as_ref().unwrap(), + sess.print_fuel.load(SeqCst) + ); + } + + Ok(()) + }) +} + +// Extract output directory and file from matches. +fn make_output(matches: &getopts::Matches) -> (Option, Option) { + let odir = matches.opt_str("out-dir").map(|o| PathBuf::from(&o)); + let ofile = matches.opt_str("o").map(|o| PathBuf::from(&o)); + (odir, ofile) +} + +// Extract input (string or file and optional path) from matches. +fn make_input( + error_format: ErrorOutputType, + free_matches: &[String], +) -> Result, ErrorGuaranteed> { + if free_matches.len() == 1 { + let ifile = &free_matches[0]; + if ifile == "-" { + let mut src = String::new(); + if io::stdin().read_to_string(&mut src).is_err() { + // Immediately stop compilation if there was an issue reading + // the input (for example if the input stream is not UTF-8). + let reported = early_error_no_abort( + error_format, + "couldn't read from stdin, as it did not contain valid UTF-8", + ); + return Err(reported); + } + if let Ok(path) = env::var("UNSTABLE_RUSTDOC_TEST_PATH") { + let line = env::var("UNSTABLE_RUSTDOC_TEST_LINE").expect( + "when UNSTABLE_RUSTDOC_TEST_PATH is set \ + UNSTABLE_RUSTDOC_TEST_LINE also needs to be set", + ); + let line = isize::from_str_radix(&line, 10) + .expect("UNSTABLE_RUSTDOC_TEST_LINE needs to be an number"); + let file_name = FileName::doc_test_source_code(PathBuf::from(path), line); + Ok(Some(Input::Str { name: file_name, input: src })) + } else { + Ok(Some(Input::Str { name: FileName::anon_source_code(&src), input: src })) + } + } else { + Ok(Some(Input::File(PathBuf::from(ifile)))) + } + } else { + Ok(None) + } +} + +/// Whether to stop or continue compilation. +#[derive(Copy, Clone, Debug, Eq, PartialEq)] +pub enum Compilation { + Stop, + Continue, +} + +impl Compilation { + pub fn and_then Compilation>(self, next: F) -> Compilation { + match self { + Compilation::Stop => Compilation::Stop, + Compilation::Continue => next(), + } + } +} + +fn handle_explain(registry: Registry, code: &str, output: ErrorOutputType) { + let upper_cased_code = code.to_ascii_uppercase(); + let normalised = + if upper_cased_code.starts_with('E') { upper_cased_code } else { format!("E{code:0>4}") }; + match registry.try_find_description(&normalised) { + Ok(Some(description)) => { + let mut is_in_code_block = false; + let mut text = String::new(); + // Slice off the leading newline and print. + for line in description.lines() { + let indent_level = + line.find(|c: char| !c.is_whitespace()).unwrap_or_else(|| line.len()); + let dedented_line = &line[indent_level..]; + if dedented_line.starts_with("```") { + is_in_code_block = !is_in_code_block; + text.push_str(&line[..(indent_level + 3)]); + } else if is_in_code_block && dedented_line.starts_with("# ") { + continue; + } else { + text.push_str(line); + } + text.push('\n'); + } + if io::stdout().is_terminal() { + show_content_with_pager(&text); + } else { + print!("{text}"); + } + } + Ok(None) => { + early_error(output, &format!("no extended information for {code}")); + } + Err(InvalidErrorCode) => { + early_error(output, &format!("{code} is not a valid error code")); + } + } +} + +fn show_content_with_pager(content: &str) { + let pager_name = env::var_os("PAGER").unwrap_or_else(|| { + if cfg!(windows) { OsString::from("more.com") } else { OsString::from("less") } + }); + + let mut fallback_to_println = false; + + match Command::new(pager_name).stdin(Stdio::piped()).spawn() { + Ok(mut pager) => { + if let Some(pipe) = pager.stdin.as_mut() { + if pipe.write_all(content.as_bytes()).is_err() { + fallback_to_println = true; + } + } + + if pager.wait().is_err() { + fallback_to_println = true; + } + } + Err(_) => { + fallback_to_println = true; + } + } + + // If pager fails for whatever reason, we should still print the content + // to standard output + if fallback_to_println { + print!("{content}"); + } +} + +pub fn try_process_rlink(sess: &Session, compiler: &interface::Compiler) -> Compilation { + if sess.opts.unstable_opts.link_only { + if let Input::File(file) = &sess.io.input { + // FIXME: #![crate_type] and #![crate_name] support not implemented yet + sess.init_crate_types(collect_crate_types(sess, &[])); + let outputs = compiler.build_output_filenames(sess, &[]); + let rlink_data = fs::read(file).unwrap_or_else(|err| { + sess.emit_fatal(RlinkUnableToRead { err }); + }); + let codegen_results = match CodegenResults::deserialize_rlink(rlink_data) { + Ok(codegen) => codegen, + Err(err) => { + match err { + CodegenErrors::WrongFileType => sess.emit_fatal(RLinkWrongFileType), + CodegenErrors::EmptyVersionNumber => { + sess.emit_fatal(RLinkEmptyVersionNumber) + } + CodegenErrors::EncodingVersionMismatch { version_array, rlink_version } => { + sess.emit_fatal(RLinkEncodingVersionMismatch { + version_array, + rlink_version, + }) + } + CodegenErrors::RustcVersionMismatch { rustc_version, current_version } => { + sess.emit_fatal(RLinkRustcVersionMismatch { + rustc_version, + current_version, + }) + } + }; + } + }; + let result = compiler.codegen_backend().link(sess, codegen_results, &outputs); + abort_on_err(result, sess); + } else { + sess.emit_fatal(RlinkNotAFile {}) + } + Compilation::Stop + } else { + Compilation::Continue + } +} + +pub fn list_metadata(sess: &Session, metadata_loader: &dyn MetadataLoader) -> Compilation { + if sess.opts.unstable_opts.ls { + match sess.io.input { + Input::File(ref ifile) => { + let path = &(*ifile); + let mut v = Vec::new(); + locator::list_file_metadata(&sess.target, path, metadata_loader, &mut v).unwrap(); + println!("{}", String::from_utf8(v).unwrap()); + } + Input::Str { .. } => { + early_error(ErrorOutputType::default(), "cannot list metadata for stdin"); + } + } + return Compilation::Stop; + } + + Compilation::Continue +} + +fn print_crate_info( + codegen_backend: &dyn CodegenBackend, + sess: &Session, + parse_attrs: bool, +) -> Compilation { + use rustc_session::config::PrintRequest::*; + // NativeStaticLibs and LinkArgs are special - printed during linking + // (empty iterator returns true) + if sess.opts.prints.iter().all(|&p| p == NativeStaticLibs || p == LinkArgs) { + return Compilation::Continue; + } + + let attrs = if parse_attrs { + let result = parse_crate_attrs(sess); + match result { + Ok(attrs) => Some(attrs), + Err(mut parse_error) => { + parse_error.emit(); + return Compilation::Stop; + } + } + } else { + None + }; + for req in &sess.opts.prints { + match *req { + TargetList => { + let mut targets = rustc_target::spec::TARGETS.to_vec(); + targets.sort_unstable(); + println!("{}", targets.join("\n")); + } + Sysroot => println!("{}", sess.sysroot.display()), + TargetLibdir => println!("{}", sess.target_tlib_path.dir.display()), + TargetSpec => { + println!("{}", serde_json::to_string_pretty(&sess.target.to_json()).unwrap()); + } + FileNames | CrateName => { + let attrs = attrs.as_ref().unwrap(); + let t_outputs = rustc_interface::util::build_output_filenames(attrs, sess); + let id = rustc_session::output::find_crate_name(sess, attrs); + if *req == PrintRequest::CrateName { + println!("{id}"); + continue; + } + let crate_types = collect_crate_types(sess, attrs); + for &style in &crate_types { + let fname = + rustc_session::output::filename_for_input(sess, style, id, &t_outputs); + println!("{}", fname.file_name().unwrap().to_string_lossy()); + } + } + Cfg => { + let mut cfgs = sess + .parse_sess + .config + .iter() + .filter_map(|&(name, value)| { + // Note that crt-static is a specially recognized cfg + // directive that's printed out here as part of + // rust-lang/rust#37406, but in general the + // `target_feature` cfg is gated under + // rust-lang/rust#29717. For now this is just + // specifically allowing the crt-static cfg and that's + // it, this is intended to get into Cargo and then go + // through to build scripts. + if (name != sym::target_feature || value != Some(sym::crt_dash_static)) + && !sess.is_nightly_build() + && find_gated_cfg(|cfg_sym| cfg_sym == name).is_some() + { + return None; + } + + if let Some(value) = value { + Some(format!("{name}=\"{value}\"")) + } else { + Some(name.to_string()) + } + }) + .collect::>(); + + cfgs.sort(); + for cfg in cfgs { + println!("{cfg}"); + } + } + CallingConventions => { + let mut calling_conventions = rustc_target::spec::abi::all_names(); + calling_conventions.sort_unstable(); + println!("{}", calling_conventions.join("\n")); + } + RelocationModels + | CodeModels + | TlsModels + | TargetCPUs + | StackProtectorStrategies + | TargetFeatures => { + codegen_backend.print(*req, sess); + } + // Any output here interferes with Cargo's parsing of other printed output + NativeStaticLibs => {} + LinkArgs => {} + SplitDebuginfo => { + use rustc_target::spec::SplitDebuginfo::{Off, Packed, Unpacked}; + + for split in &[Off, Packed, Unpacked] { + let stable = sess.target.options.supported_split_debuginfo.contains(split); + let unstable_ok = sess.unstable_options(); + if stable || unstable_ok { + println!("{split}"); + } + } + } + } + } + Compilation::Stop +} + +/// Prints version information +/// +/// NOTE: this is a macro to support drivers built at a different time than the main `rustc_driver` crate. +pub macro version($binary: literal, $matches: expr) { + fn unw(x: Option<&str>) -> &str { + x.unwrap_or("unknown") + } + $crate::version_at_macro_invocation( + $binary, + $matches, + unw(option_env!("CFG_VERSION")), + unw(option_env!("CFG_VER_HASH")), + unw(option_env!("CFG_VER_DATE")), + unw(option_env!("CFG_RELEASE")), + ) +} + +#[doc(hidden)] // use the macro instead +pub fn version_at_macro_invocation( + binary: &str, + matches: &getopts::Matches, + version: &str, + commit_hash: &str, + commit_date: &str, + release: &str, +) { + let verbose = matches.opt_present("verbose"); + + println!("{binary} {version}"); + + if verbose { + println!("binary: {binary}"); + println!("commit-hash: {commit_hash}"); + println!("commit-date: {commit_date}"); + println!("host: {}", config::host_triple()); + println!("release: {release}"); + + let debug_flags = matches.opt_strs("Z"); + let backend_name = debug_flags.iter().find_map(|x| x.strip_prefix("codegen-backend=")); + get_codegen_backend(&None, backend_name).print_version(); + } +} + +fn usage(verbose: bool, include_unstable_options: bool, nightly_build: bool) { + let groups = if verbose { config::rustc_optgroups() } else { config::rustc_short_optgroups() }; + let mut options = getopts::Options::new(); + for option in groups.iter().filter(|x| include_unstable_options || x.is_stable()) { + (option.apply)(&mut options); + } + let message = "Usage: rustc [OPTIONS] INPUT"; + let nightly_help = if nightly_build { + "\n -Z help Print unstable compiler options" + } else { + "" + }; + let verbose_help = if verbose { + "" + } else { + "\n --help -v Print the full set of options rustc accepts" + }; + let at_path = if verbose { + " @path Read newline separated options from `path`\n" + } else { + "" + }; + println!( + "{options}{at_path}\nAdditional help: + -C help Print codegen options + -W help \ + Print 'lint' options and default settings{nightly}{verbose}\n", + options = options.usage(message), + at_path = at_path, + nightly = nightly_help, + verbose = verbose_help + ); +} + +fn print_wall_help() { + println!( + " +The flag `-Wall` does not exist in `rustc`. Most useful lints are enabled by +default. Use `rustc -W help` to see all available lints. It's more common to put +warning settings in the crate root using `#![warn(LINT_NAME)]` instead of using +the command line flag directly. +" + ); +} + +/// Write to stdout lint command options, together with a list of all available lints +pub fn describe_lints(sess: &Session, lint_store: &LintStore, loaded_plugins: bool) { + println!( + " +Available lint options: + -W Warn about + -A \ + Allow + -D Deny + -F Forbid \ + (deny and all attempts to override) + +" + ); + + fn sort_lints(sess: &Session, mut lints: Vec<&'static Lint>) -> Vec<&'static Lint> { + // The sort doesn't case-fold but it's doubtful we care. + lints.sort_by_cached_key(|x: &&Lint| (x.default_level(sess.edition()), x.name)); + lints + } + + fn sort_lint_groups( + lints: Vec<(&'static str, Vec, bool)>, + ) -> Vec<(&'static str, Vec)> { + let mut lints: Vec<_> = lints.into_iter().map(|(x, y, _)| (x, y)).collect(); + lints.sort_by_key(|l| l.0); + lints + } + + let (plugin, builtin): (Vec<_>, _) = + lint_store.get_lints().iter().cloned().partition(|&lint| lint.is_plugin); + let plugin = sort_lints(sess, plugin); + let builtin = sort_lints(sess, builtin); + + let (plugin_groups, builtin_groups): (Vec<_>, _) = + lint_store.get_lint_groups().partition(|&(.., p)| p); + let plugin_groups = sort_lint_groups(plugin_groups); + let builtin_groups = sort_lint_groups(builtin_groups); + + let max_name_len = + plugin.iter().chain(&builtin).map(|&s| s.name.chars().count()).max().unwrap_or(0); + let padded = |x: &str| { + let mut s = " ".repeat(max_name_len - x.chars().count()); + s.push_str(x); + s + }; + + println!("Lint checks provided by rustc:\n"); + + let print_lints = |lints: Vec<&Lint>| { + println!(" {} {:7.7} {}", padded("name"), "default", "meaning"); + println!(" {} {:7.7} {}", padded("----"), "-------", "-------"); + for lint in lints { + let name = lint.name_lower().replace('_', "-"); + println!( + " {} {:7.7} {}", + padded(&name), + lint.default_level(sess.edition()).as_str(), + lint.desc + ); + } + println!("\n"); + }; + + print_lints(builtin); + + let max_name_len = max( + "warnings".len(), + plugin_groups + .iter() + .chain(&builtin_groups) + .map(|&(s, _)| s.chars().count()) + .max() + .unwrap_or(0), + ); + + let padded = |x: &str| { + let mut s = " ".repeat(max_name_len - x.chars().count()); + s.push_str(x); + s + }; + + println!("Lint groups provided by rustc:\n"); + + let print_lint_groups = |lints: Vec<(&'static str, Vec)>, all_warnings| { + println!(" {} sub-lints", padded("name")); + println!(" {} ---------", padded("----")); + + if all_warnings { + println!(" {} all lints that are set to issue warnings", padded("warnings")); + } + + for (name, to) in lints { + let name = name.to_lowercase().replace('_', "-"); + let desc = to + .into_iter() + .map(|x| x.to_string().replace('_', "-")) + .collect::>() + .join(", "); + println!(" {} {}", padded(&name), desc); + } + println!("\n"); + }; + + print_lint_groups(builtin_groups, true); + + match (loaded_plugins, plugin.len(), plugin_groups.len()) { + (false, 0, _) | (false, _, 0) => { + println!("Lint tools like Clippy can provide additional lints and lint groups."); + } + (false, ..) => panic!("didn't load lint plugins but got them anyway!"), + (true, 0, 0) => println!("This crate does not load any lint plugins or lint groups."), + (true, l, g) => { + if l > 0 { + println!("Lint checks provided by plugins loaded by this crate:\n"); + print_lints(plugin); + } + if g > 0 { + println!("Lint groups provided by plugins loaded by this crate:\n"); + print_lint_groups(plugin_groups, false); + } + } + } +} + +fn describe_debug_flags() { + println!("\nAvailable options:\n"); + print_flag_list("-Z", config::Z_OPTIONS); +} + +fn describe_codegen_flags() { + println!("\nAvailable codegen options:\n"); + print_flag_list("-C", config::CG_OPTIONS); +} + +pub fn print_flag_list( + cmdline_opt: &str, + flag_list: &[(&'static str, T, &'static str, &'static str)], +) { + let max_len = flag_list.iter().map(|&(name, _, _, _)| name.chars().count()).max().unwrap_or(0); + + for &(name, _, _, desc) in flag_list { + println!( + " {} {:>width$}=val -- {}", + cmdline_opt, + name.replace('_', "-"), + desc, + width = max_len + ); + } +} + +/// Process command line options. Emits messages as appropriate. If compilation +/// should continue, returns a getopts::Matches object parsed from args, +/// otherwise returns `None`. +/// +/// The compiler's handling of options is a little complicated as it ties into +/// our stability story. The current intention of each compiler option is to +/// have one of two modes: +/// +/// 1. An option is stable and can be used everywhere. +/// 2. An option is unstable, and can only be used on nightly. +/// +/// Like unstable library and language features, however, unstable options have +/// always required a form of "opt in" to indicate that you're using them. This +/// provides the easy ability to scan a code base to check to see if anything +/// unstable is being used. Currently, this "opt in" is the `-Z` "zed" flag. +/// +/// All options behind `-Z` are considered unstable by default. Other top-level +/// options can also be considered unstable, and they were unlocked through the +/// `-Z unstable-options` flag. Note that `-Z` remains to be the root of +/// instability in both cases, though. +/// +/// So with all that in mind, the comments below have some more detail about the +/// contortions done here to get things to work out correctly. +pub fn handle_options(args: &[String]) -> Option { + // Throw away the first argument, the name of the binary + let args = &args[1..]; + + if args.is_empty() { + // user did not write `-v` nor `-Z unstable-options`, so do not + // include that extra information. + let nightly_build = + rustc_feature::UnstableFeatures::from_environment(None).is_nightly_build(); + usage(false, false, nightly_build); + return None; + } + + // Parse with *all* options defined in the compiler, we don't worry about + // option stability here we just want to parse as much as possible. + let mut options = getopts::Options::new(); + for option in config::rustc_optgroups() { + (option.apply)(&mut options); + } + let matches = options.parse(args).unwrap_or_else(|e| { + let msg = match e { + getopts::Fail::UnrecognizedOption(ref opt) => CG_OPTIONS + .iter() + .map(|&(name, ..)| ('C', name)) + .chain(Z_OPTIONS.iter().map(|&(name, ..)| ('Z', name))) + .find(|&(_, name)| *opt == name.replace('_', "-")) + .map(|(flag, _)| format!("{e}. Did you mean `-{flag} {opt}`?")), + _ => None, + }; + early_error(ErrorOutputType::default(), &msg.unwrap_or_else(|| e.to_string())); + }); + + // For all options we just parsed, we check a few aspects: + // + // * If the option is stable, we're all good + // * If the option wasn't passed, we're all good + // * If `-Z unstable-options` wasn't passed (and we're not a -Z option + // ourselves), then we require the `-Z unstable-options` flag to unlock + // this option that was passed. + // * If we're a nightly compiler, then unstable options are now unlocked, so + // we're good to go. + // * Otherwise, if we're an unstable option then we generate an error + // (unstable option being used on stable) + nightly_options::check_nightly_options(&matches, &config::rustc_optgroups()); + + if matches.opt_present("h") || matches.opt_present("help") { + // Only show unstable options in --help if we accept unstable options. + let unstable_enabled = nightly_options::is_unstable_enabled(&matches); + let nightly_build = nightly_options::match_is_nightly_build(&matches); + usage(matches.opt_present("verbose"), unstable_enabled, nightly_build); + return None; + } + + // Handle the special case of -Wall. + let wall = matches.opt_strs("W"); + if wall.iter().any(|x| *x == "all") { + print_wall_help(); + rustc_errors::FatalError.raise(); + } + + // Don't handle -W help here, because we might first load plugins. + let debug_flags = matches.opt_strs("Z"); + if debug_flags.iter().any(|x| *x == "help") { + describe_debug_flags(); + return None; + } + + let cg_flags = matches.opt_strs("C"); + + if cg_flags.iter().any(|x| *x == "help") { + describe_codegen_flags(); + return None; + } + + if cg_flags.iter().any(|x| *x == "no-stack-check") { + early_warn( + ErrorOutputType::default(), + "the --no-stack-check flag is deprecated and does nothing", + ); + } + + if cg_flags.iter().any(|x| *x == "passes=list") { + let backend_name = debug_flags.iter().find_map(|x| x.strip_prefix("codegen-backend=")); + get_codegen_backend(&None, backend_name).print_passes(); + return None; + } + + if matches.opt_present("version") { + version!("rustc", &matches); + return None; + } + + Some(matches) +} + +fn parse_crate_attrs<'a>(sess: &'a Session) -> PResult<'a, ast::AttrVec> { + match &sess.io.input { + Input::File(ifile) => rustc_parse::parse_crate_attrs_from_file(ifile, &sess.parse_sess), + Input::Str { name, input } => rustc_parse::parse_crate_attrs_from_source_str( + name.clone(), + input.clone(), + &sess.parse_sess, + ), + } +} + +/// Gets a list of extra command-line flags provided by the user, as strings. +/// +/// This function is used during ICEs to show more information useful for +/// debugging, since some ICEs only happens with non-default compiler flags +/// (and the users don't always report them). +fn extra_compiler_flags() -> Option<(Vec, bool)> { + let mut args = env::args_os().map(|arg| arg.to_string_lossy().to_string()).peekable(); + + let mut result = Vec::new(); + let mut excluded_cargo_defaults = false; + while let Some(arg) = args.next() { + if let Some(a) = ICE_REPORT_COMPILER_FLAGS.iter().find(|a| arg.starts_with(*a)) { + let content = if arg.len() == a.len() { + // A space-separated option, like `-C incremental=foo` or `--crate-type rlib` + match args.next() { + Some(arg) => arg.to_string(), + None => continue, + } + } else if arg.get(a.len()..a.len() + 1) == Some("=") { + // An equals option, like `--crate-type=rlib` + arg[a.len() + 1..].to_string() + } else { + // A non-space option, like `-Cincremental=foo` + arg[a.len()..].to_string() + }; + let option = content.split_once('=').map(|s| s.0).unwrap_or(&content); + if ICE_REPORT_COMPILER_FLAGS_EXCLUDE.iter().any(|exc| option == *exc) { + excluded_cargo_defaults = true; + } else { + result.push(a.to_string()); + match ICE_REPORT_COMPILER_FLAGS_STRIP_VALUE.iter().find(|s| option == **s) { + Some(s) => result.push(format!("{s}=[REDACTED]")), + None => result.push(content), + } + } + } + } + + if !result.is_empty() { Some((result, excluded_cargo_defaults)) } else { None } +} + +/// Runs a closure and catches unwinds triggered by fatal errors. +/// +/// The compiler currently unwinds with a special sentinel value to abort +/// compilation on fatal errors. This function catches that sentinel and turns +/// the panic into a `Result` instead. +pub fn catch_fatal_errors R, R>(f: F) -> Result { + catch_unwind(panic::AssertUnwindSafe(f)).map_err(|value| { + if value.is::() { + ErrorGuaranteed::unchecked_claim_error_was_emitted() + } else { + panic::resume_unwind(value); + } + }) +} + +/// Variant of `catch_fatal_errors` for the `interface::Result` return type +/// that also computes the exit code. +pub fn catch_with_exit_code(f: impl FnOnce() -> interface::Result<()>) -> i32 { + let result = catch_fatal_errors(f).and_then(|result| result); + match result { + Ok(()) => EXIT_SUCCESS, + Err(_) => EXIT_FAILURE, + } +} + +static DEFAULT_HOOK: LazyLock) + Sync + Send + 'static>> = + LazyLock::new(|| { + let hook = panic::take_hook(); + panic::set_hook(Box::new(|info| { + // If the error was caused by a broken pipe then this is not a bug. + // Write the error and return immediately. See #98700. + #[cfg(windows)] + if let Some(msg) = info.payload().downcast_ref::() { + if msg.starts_with("failed printing to stdout: ") && msg.ends_with("(os error 232)") + { + early_error_no_abort(ErrorOutputType::default(), &msg); + return; + } + }; + + // Invoke the default handler, which prints the actual panic message and optionally a backtrace + // Don't do this for delayed bugs, which already emit their own more useful backtrace. + if !info.payload().is::() { + (*DEFAULT_HOOK)(info); + + // Separate the output with an empty line + eprintln!(); + } + + // Print the ICE message + report_ice(info, BUG_REPORT_URL); + })); + hook + }); + +/// Prints the ICE message, including query stack, but without backtrace. +/// +/// The message will point the user at `bug_report_url` to report the ICE. +/// +/// When `install_ice_hook` is called, this function will be called as the panic +/// hook. +pub fn report_ice(info: &panic::PanicInfo<'_>, bug_report_url: &str) { + let fallback_bundle = + rustc_errors::fallback_fluent_bundle(rustc_errors::DEFAULT_LOCALE_RESOURCES, false); + let emitter = Box::new(rustc_errors::emitter::EmitterWriter::stderr( + rustc_errors::ColorConfig::Auto, + None, + None, + fallback_bundle, + false, + false, + None, + false, + false, + )); + let handler = rustc_errors::Handler::with_emitter(true, None, emitter); + + // a .span_bug or .bug call has already printed what + // it wants to print. + if !info.payload().is::() + && !info.payload().is::() + { + let mut d = rustc_errors::Diagnostic::new(rustc_errors::Level::Bug, "unexpected panic"); + handler.emit_diagnostic(&mut d); + } + + handler.emit_note(session_diagnostics::Ice); + handler.emit_note(session_diagnostics::IceBugReport { bug_report_url }); + handler.emit_note(session_diagnostics::IceVersion { + version: util::version_str!().unwrap_or("unknown_version"), + triple: config::host_triple(), + }); + + if let Some((flags, excluded_cargo_defaults)) = extra_compiler_flags() { + handler.emit_note(session_diagnostics::IceFlags { flags: flags.join(" ") }); + if excluded_cargo_defaults { + handler.emit_note(session_diagnostics::IceExcludeCargoDefaults); + } + } + + // If backtraces are enabled, also print the query stack + let backtrace = env::var_os("RUST_BACKTRACE").map_or(false, |x| &x != "0"); + + let num_frames = if backtrace { None } else { Some(2) }; + + interface::try_print_query_stack(&handler, num_frames); + + #[cfg(windows)] + unsafe { + if env::var("RUSTC_BREAK_ON_ICE").is_ok() { + // Trigger a debugger if we crashed during bootstrap + winapi::um::debugapi::DebugBreak(); + } + } +} + +/// Installs a panic hook that will print the ICE message on unexpected panics. +/// +/// A custom rustc driver can skip calling this to set up a custom ICE hook. +pub fn install_ice_hook() { + // If the user has not explicitly overridden "RUST_BACKTRACE", then produce + // full backtraces. When a compiler ICE happens, we want to gather + // as much information as possible to present in the issue opened + // by the user. Compiler developers and other rustc users can + // opt in to less-verbose backtraces by manually setting "RUST_BACKTRACE" + // (e.g. `RUST_BACKTRACE=1`) + if std::env::var("RUST_BACKTRACE").is_err() { + std::env::set_var("RUST_BACKTRACE", "full"); + } + LazyLock::force(&DEFAULT_HOOK); +} + +/// This allows tools to enable rust logging without having to magically match rustc's +/// tracing crate version. +pub fn init_rustc_env_logger() { + init_rustc_env_logger_with_backtrace_option(&None); +} + +/// This allows tools to enable rust logging without having to magically match rustc's +/// tracing crate version. In contrast to `init_rustc_env_logger` it allows you to +/// choose a target module you wish to show backtraces along with its logging. +pub fn init_rustc_env_logger_with_backtrace_option(backtrace_target: &Option) { + if let Err(error) = rustc_log::init_rustc_env_logger_with_backtrace_option(backtrace_target) { + early_error(ErrorOutputType::default(), &error.to_string()); + } +} + +/// This allows tools to enable rust logging without having to magically match rustc's +/// tracing crate version. In contrast to `init_rustc_env_logger` it allows you to choose an env var +/// other than `RUSTC_LOG`. +pub fn init_env_logger(env: &str) { + if let Err(error) = rustc_log::init_env_logger(env) { + early_error(ErrorOutputType::default(), &error.to_string()); + } +} + +#[cfg(all(unix, any(target_env = "gnu", target_os = "macos")))] +mod signal_handler { + extern "C" { + fn backtrace_symbols_fd( + buffer: *const *mut libc::c_void, + size: libc::c_int, + fd: libc::c_int, + ); + } + + extern "C" fn print_stack_trace(_: libc::c_int) { + const MAX_FRAMES: usize = 256; + static mut STACK_TRACE: [*mut libc::c_void; MAX_FRAMES] = + [std::ptr::null_mut(); MAX_FRAMES]; + unsafe { + let depth = libc::backtrace(STACK_TRACE.as_mut_ptr(), MAX_FRAMES as i32); + if depth == 0 { + return; + } + backtrace_symbols_fd(STACK_TRACE.as_ptr(), depth, 2); + } + } + + /// When an error signal (such as SIGABRT or SIGSEGV) is delivered to the + /// process, print a stack trace and then exit. + pub(super) fn install() { + unsafe { + const ALT_STACK_SIZE: usize = libc::MINSIGSTKSZ + 64 * 1024; + let mut alt_stack: libc::stack_t = std::mem::zeroed(); + alt_stack.ss_sp = + std::alloc::alloc(std::alloc::Layout::from_size_align(ALT_STACK_SIZE, 1).unwrap()) + as *mut libc::c_void; + alt_stack.ss_size = ALT_STACK_SIZE; + libc::sigaltstack(&alt_stack, std::ptr::null_mut()); + + let mut sa: libc::sigaction = std::mem::zeroed(); + sa.sa_sigaction = print_stack_trace as libc::sighandler_t; + sa.sa_flags = libc::SA_NODEFER | libc::SA_RESETHAND | libc::SA_ONSTACK; + libc::sigemptyset(&mut sa.sa_mask); + libc::sigaction(libc::SIGSEGV, &sa, std::ptr::null_mut()); + } + } +} + +#[cfg(not(all(unix, any(target_env = "gnu", target_os = "macos"))))] +mod signal_handler { + pub(super) fn install() {} +} + +pub fn main() -> ! { + let start_time = Instant::now(); + let start_rss = get_resident_set_size(); + signal_handler::install(); + let mut callbacks = TimePassesCallbacks::default(); + install_ice_hook(); + let exit_code = catch_with_exit_code(|| { + let args = env::args_os() + .enumerate() + .map(|(i, arg)| { + arg.into_string().unwrap_or_else(|arg| { + early_error( + ErrorOutputType::default(), + &format!("argument {i} is not valid Unicode: {arg:?}"), + ) + }) + }) + .collect::>(); + RunCompiler::new(&args, &mut callbacks).run() + }); + + if callbacks.time_passes { + let end_rss = get_resident_set_size(); + print_time_passes_entry("total", start_time.elapsed(), start_rss, end_rss); + } + + process::exit(exit_code) +} diff --git a/compiler/rustc_driver/src/pretty.rs b/compiler/rustc_driver_impl/src/pretty.rs similarity index 100% rename from compiler/rustc_driver/src/pretty.rs rename to compiler/rustc_driver_impl/src/pretty.rs diff --git a/compiler/rustc_driver/src/session_diagnostics.rs b/compiler/rustc_driver_impl/src/session_diagnostics.rs similarity index 68% rename from compiler/rustc_driver/src/session_diagnostics.rs rename to compiler/rustc_driver_impl/src/session_diagnostics.rs index a7aef9cbc2c8..638b368f7021 100644 --- a/compiler/rustc_driver/src/session_diagnostics.rs +++ b/compiler/rustc_driver_impl/src/session_diagnostics.rs @@ -1,67 +1,67 @@ use rustc_macros::Diagnostic; #[derive(Diagnostic)] -#[diag(driver_rlink_unable_to_read)] +#[diag(driver_impl_rlink_unable_to_read)] pub(crate) struct RlinkUnableToRead { pub err: std::io::Error, } #[derive(Diagnostic)] -#[diag(driver_rlink_wrong_file_type)] +#[diag(driver_impl_rlink_wrong_file_type)] pub(crate) struct RLinkWrongFileType; #[derive(Diagnostic)] -#[diag(driver_rlink_empty_version_number)] +#[diag(driver_impl_rlink_empty_version_number)] pub(crate) struct RLinkEmptyVersionNumber; #[derive(Diagnostic)] -#[diag(driver_rlink_encoding_version_mismatch)] +#[diag(driver_impl_rlink_encoding_version_mismatch)] pub(crate) struct RLinkEncodingVersionMismatch { pub version_array: String, pub rlink_version: u32, } #[derive(Diagnostic)] -#[diag(driver_rlink_rustc_version_mismatch)] +#[diag(driver_impl_rlink_rustc_version_mismatch)] pub(crate) struct RLinkRustcVersionMismatch<'a> { pub rustc_version: String, pub current_version: &'a str, } #[derive(Diagnostic)] -#[diag(driver_rlink_no_a_file)] +#[diag(driver_impl_rlink_no_a_file)] pub(crate) struct RlinkNotAFile; #[derive(Diagnostic)] -#[diag(driver_unpretty_dump_fail)] +#[diag(driver_impl_unpretty_dump_fail)] pub(crate) struct UnprettyDumpFail { pub path: String, pub err: String, } #[derive(Diagnostic)] -#[diag(driver_ice)] +#[diag(driver_impl_ice)] pub(crate) struct Ice; #[derive(Diagnostic)] -#[diag(driver_ice_bug_report)] +#[diag(driver_impl_ice_bug_report)] pub(crate) struct IceBugReport<'a> { pub bug_report_url: &'a str, } #[derive(Diagnostic)] -#[diag(driver_ice_version)] +#[diag(driver_impl_ice_version)] pub(crate) struct IceVersion<'a> { pub version: &'a str, pub triple: &'a str, } #[derive(Diagnostic)] -#[diag(driver_ice_flags)] +#[diag(driver_impl_ice_flags)] pub(crate) struct IceFlags { pub flags: String, } #[derive(Diagnostic)] -#[diag(driver_ice_exclude_cargo_defaults)] +#[diag(driver_impl_ice_exclude_cargo_defaults)] pub(crate) struct IceExcludeCargoDefaults; diff --git a/compiler/rustc_error_messages/locales/en-US/borrowck.ftl b/compiler/rustc_error_messages/locales/en-US/borrowck.ftl index 0021638c1026..fe77cf23e8f9 100644 --- a/compiler/rustc_error_messages/locales/en-US/borrowck.ftl +++ b/compiler/rustc_error_messages/locales/en-US/borrowck.ftl @@ -33,7 +33,7 @@ borrowck_var_here_defined = variable defined here borrowck_var_here_captured = variable captured here -borrowck_closure_inferred_mut = inferred to be a `FnMut` closure +borrowck_closure_inferred_mut = inferred to be a `FnMut` closure borrowck_returned_closure_escaped = returns a closure that contains a reference to a captured variable, which then escapes the closure body diff --git a/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl b/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl index 4924105128db..8fe5f8d50abe 100644 --- a/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl +++ b/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl @@ -22,7 +22,7 @@ codegen_ssa_ignoring_output = ignoring -o because multiple .{$extension} files w codegen_ssa_create_temp_dir = couldn't create a temp dir: {$error} -codegen_ssa_incompatible_linking_modifiers = the linking modifiers `+bundle` and `+whole-archive` are not compatible with each other when generating rlibs +codegen_ssa_incompatible_linking_modifiers = link modifiers combination `+bundle,+whole-archive` is unstable when generating rlibs codegen_ssa_add_native_library = failed to add native library {$library_path}: {$error} diff --git a/compiler/rustc_error_messages/locales/en-US/driver.ftl b/compiler/rustc_error_messages/locales/en-US/driver.ftl index 79ffc82c6c67..f19b1ff64261 100644 --- a/compiler/rustc_error_messages/locales/en-US/driver.ftl +++ b/compiler/rustc_error_messages/locales/en-US/driver.ftl @@ -1,19 +1,19 @@ -driver_rlink_unable_to_read = failed to read rlink file: `{$err}` +driver_impl_rlink_unable_to_read = failed to read rlink file: `{$err}` -driver_rlink_wrong_file_type = The input does not look like a .rlink file +driver_impl_rlink_wrong_file_type = The input does not look like a .rlink file -driver_rlink_empty_version_number = The input does not contain version number +driver_impl_rlink_empty_version_number = The input does not contain version number -driver_rlink_encoding_version_mismatch = .rlink file was produced with encoding version `{$version_array}`, but the current version is `{$rlink_version}` +driver_impl_rlink_encoding_version_mismatch = .rlink file was produced with encoding version `{$version_array}`, but the current version is `{$rlink_version}` -driver_rlink_rustc_version_mismatch = .rlink file was produced by rustc version `{$rustc_version}`, but the current version is `{$current_version}` +driver_impl_rlink_rustc_version_mismatch = .rlink file was produced by rustc version `{$rustc_version}`, but the current version is `{$current_version}` -driver_rlink_no_a_file = rlink must be a file +driver_impl_rlink_no_a_file = rlink must be a file -driver_unpretty_dump_fail = pretty-print failed to write `{$path}` due to error `{$err}` +driver_impl_unpretty_dump_fail = pretty-print failed to write `{$path}` due to error `{$err}` -driver_ice = the compiler unexpectedly panicked. this is a bug. -driver_ice_bug_report = we would appreciate a bug report: {$bug_report_url} -driver_ice_version = rustc {$version} running on {$triple} -driver_ice_flags = compiler flags: {$flags} -driver_ice_exclude_cargo_defaults = some of the compiler flags provided by cargo are hidden +driver_impl_ice = the compiler unexpectedly panicked. this is a bug. +driver_impl_ice_bug_report = we would appreciate a bug report: {$bug_report_url} +driver_impl_ice_version = rustc {$version} running on {$triple} +driver_impl_ice_flags = compiler flags: {$flags} +driver_impl_ice_exclude_cargo_defaults = some of the compiler flags provided by cargo are hidden diff --git a/compiler/rustc_error_messages/locales/en-US/hir_typeck.ftl b/compiler/rustc_error_messages/locales/en-US/hir_typeck.ftl index 0f13d29d0fcb..05ac8db0db88 100644 --- a/compiler/rustc_error_messages/locales/en-US/hir_typeck.ftl +++ b/compiler/rustc_error_messages/locales/en-US/hir_typeck.ftl @@ -61,3 +61,5 @@ hir_typeck_lang_start_incorrect_ret_ty = the return type of the `start` lang ite hir_typeck_help_set_edition_cargo = set `edition = "{$edition}"` in `Cargo.toml` hir_typeck_help_set_edition_standalone = pass `--edition {$edition}` to `rustc` hir_typeck_note_edition_guide = for more on editions, read https://doc.rust-lang.org/edition-guide + +hir_typeck_convert_to_str = try converting the passed type into a `&str` diff --git a/compiler/rustc_error_messages/locales/en-US/lint.ftl b/compiler/rustc_error_messages/locales/en-US/lint.ftl index dca678dff7a7..b1e7cc69a809 100644 --- a/compiler/rustc_error_messages/locales/en-US/lint.ftl +++ b/compiler/rustc_error_messages/locales/en-US/lint.ftl @@ -309,6 +309,7 @@ lint_unused_generator = .note = generators are lazy and do nothing unless resumed lint_unused_def = unused {$pre}`{$def}`{$post} that must be used + .suggestion = use `let _ = ...` to ignore the resulting value lint_path_statement_drop = path statement drops value .suggestion = use `drop` to clarify the intent diff --git a/compiler/rustc_error_messages/locales/en-US/parse.ftl b/compiler/rustc_error_messages/locales/en-US/parse.ftl index 21cf4bd789c7..581bb9a766e2 100644 --- a/compiler/rustc_error_messages/locales/en-US/parse.ftl +++ b/compiler/rustc_error_messages/locales/en-US/parse.ftl @@ -128,6 +128,9 @@ parse_missing_in_in_for_loop = missing `in` in `for` loop .use_in_not_of = try using `in` here instead .add_in = try adding `in` here +parse_missing_expression_in_for_loop = missing expression to iterate on in `for` loop + .suggestion = try adding an expression to the `for` loop + parse_missing_comma_after_match_arm = expected `,` following `match` arm .suggestion = missing a comma here to end this `match` arm @@ -203,8 +206,9 @@ parse_inclusive_range_extra_equals = unexpected `=` after inclusive range .suggestion_remove_eq = use `..=` instead .note = inclusive ranges end with a single equals sign (`..=`) -parse_inclusive_range_match_arrow = unexpected `=>` after open range - .suggestion_add_space = add a space between the pattern and `=>` +parse_inclusive_range_match_arrow = unexpected `>` after inclusive range + .label = this is parsed as an inclusive range `..=` + .suggestion = add a space between the pattern and `=>` parse_inclusive_range_no_end = inclusive range with no end .suggestion_open_range = use `..` instead @@ -471,6 +475,9 @@ parse_unexpected_token_after_struct_name_found_other = expected `where`, `{"{"}` parse_unexpected_self_in_generic_parameters = unexpected keyword `Self` in generic parameters .note = you cannot use `Self` as a generic parameter because it is reserved for associated items +parse_unexpected_default_value_for_lifetime_in_generic_parameters = unexpected default lifetime parameter + .label = lifetime parameters cannot have default values + parse_multiple_where_clauses = cannot define duplicate `where` clauses on an item .label = previous `where` clause starts here .suggestion = consider joining the two `where` clauses into one @@ -535,8 +542,8 @@ parse_dot_dot_dot_range_to_pattern_not_allowed = range-to patterns with `...` ar parse_enum_pattern_instead_of_identifier = expected identifier, found enum pattern -parse_dot_dot_dot_for_remaining_fields = expected field pattern, found `...` - .suggestion = to omit remaining fields, use one fewer `.` +parse_dot_dot_dot_for_remaining_fields = expected field pattern, found `{$token_str}` + .suggestion = to omit remaining fields, use `..` parse_expected_comma_after_pattern_field = expected `,` diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index 5a48473d5b07..cf7cff739b34 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -1,11 +1,6 @@ #![deny(rustc::untranslatable_diagnostic)] -use crate::errors::{ - ArgumentNotAttributes, AttrNoArguments, AttributeMetaItem, AttributeSingleWord, - AttributesWrongForm, CannotBeNameOfMacro, ExpectedCommaInList, HelperAttributeNameInvalid, - MacroBodyStability, MacroConstStability, NotAMetaItem, OnlyOneArgument, OnlyOneWord, - ResolveRelativePath, TakesNoArguments, TraceMacro, -}; +use crate::errors; use crate::expand::{self, AstFragment, Invocation}; use crate::module::DirOwnership; @@ -796,13 +791,13 @@ impl SyntaxExtension { .unwrap_or_else(|| (None, helper_attrs)); let (stability, const_stability, body_stability) = attr::find_stability(&sess, attrs, span); if let Some((_, sp)) = const_stability { - sess.emit_err(MacroConstStability { + sess.emit_err(errors::MacroConstStability { span: sp, head_span: sess.source_map().guess_head_span(span), }); } if let Some((_, sp)) = body_stability { - sess.emit_err(MacroBodyStability { + sess.emit_err(errors::MacroBodyStability { span: sp, head_span: sess.source_map().guess_head_span(span), }); @@ -1143,7 +1138,7 @@ impl<'a> ExtCtxt<'a> { } pub fn trace_macros_diag(&mut self) { for (span, notes) in self.expansions.iter() { - let mut db = self.sess.parse_sess.create_note(TraceMacro { span: *span }); + let mut db = self.sess.parse_sess.create_note(errors::TraceMacro { span: *span }); for note in notes { db.note(note); } @@ -1197,7 +1192,7 @@ pub fn resolve_path( .expect("attempting to resolve a file path in an external file"), FileName::DocTest(path, _) => path, other => { - return Err(ResolveRelativePath { + return Err(errors::ResolveRelativePath { span, path: parse_sess.source_map().filename_for_diagnostics(&other).to_string(), } @@ -1279,7 +1274,7 @@ pub fn expr_to_string( /// done as rarely as possible). pub fn check_zero_tts(cx: &ExtCtxt<'_>, span: Span, tts: TokenStream, name: &str) { if !tts.is_empty() { - cx.emit_err(TakesNoArguments { span, name }); + cx.emit_err(errors::TakesNoArguments { span, name }); } } @@ -1307,14 +1302,14 @@ pub fn get_single_str_from_tts( ) -> Option { let mut p = cx.new_parser_from_tts(tts); if p.token == token::Eof { - cx.emit_err(OnlyOneArgument { span, name }); + cx.emit_err(errors::OnlyOneArgument { span, name }); return None; } let ret = parse_expr(&mut p)?; let _ = p.eat(&token::Comma); if p.token != token::Eof { - cx.emit_err(OnlyOneArgument { span, name }); + cx.emit_err(errors::OnlyOneArgument { span, name }); } expr_to_string(cx, ret, "argument must be a string literal").map(|(s, _)| s) } @@ -1336,7 +1331,7 @@ pub fn get_exprs_from_tts(cx: &mut ExtCtxt<'_>, tts: TokenStream) -> Option trait_ident, _ => { - diag.emit_err(OnlyOneWord { span: trait_attr.span }); + diag.emit_err(errors::OnlyOneWord { span: trait_attr.span }); return None; } }; if !trait_ident.name.can_be_raw() { - diag.emit_err(CannotBeNameOfMacro { span: trait_attr.span, trait_ident, macro_type }); + diag.emit_err(errors::CannotBeNameOfMacro { + span: trait_attr.span, + trait_ident, + macro_type, + }); } let attributes_attr = list.get(1); let proc_attrs: Vec<_> = if let Some(attr) = attributes_attr { if !attr.has_name(sym::attributes) { - diag.emit_err(ArgumentNotAttributes { span: attr.span() }); + diag.emit_err(errors::ArgumentNotAttributes { span: attr.span() }); } attr.meta_item_list() .unwrap_or_else(|| { - diag.emit_err(AttributesWrongForm { span: attr.span() }); + diag.emit_err(errors::AttributesWrongForm { span: attr.span() }); &[] }) .iter() .filter_map(|attr| { let Some(attr) = attr.meta_item() else { - diag.emit_err(AttributeMetaItem { span: attr.span() }); + diag.emit_err(errors::AttributeMetaItem { span: attr.span() }); return None; }; let ident = match attr.ident() { Some(ident) if attr.is_word() => ident, _ => { - diag.emit_err(AttributeSingleWord { span: attr.span }); + diag.emit_err(errors::AttributeSingleWord { span: attr.span }); return None; } }; if !ident.name.can_be_raw() { - diag.emit_err(HelperAttributeNameInvalid { span: attr.span, name: ident }); + diag.emit_err(errors::HelperAttributeNameInvalid { + span: attr.span, + name: ident, + }); } Some(ident.name) diff --git a/compiler/rustc_expand/src/mbe/metavar_expr.rs b/compiler/rustc_expand/src/mbe/metavar_expr.rs index 99fe474541e9..de34df0114a7 100644 --- a/compiler/rustc_expand/src/mbe/metavar_expr.rs +++ b/compiler/rustc_expand/src/mbe/metavar_expr.rs @@ -1,5 +1,5 @@ use rustc_ast::token::{self, Delimiter}; -use rustc_ast::tokenstream::{CursorRef, TokenStream, TokenTree}; +use rustc_ast::tokenstream::{RefTokenTreeCursor, TokenStream, TokenTree}; use rustc_ast::{LitIntType, LitKind}; use rustc_ast_pretty::pprust; use rustc_errors::{Applicability, PResult}; @@ -72,7 +72,7 @@ impl MetaVarExpr { // Checks if there are any remaining tokens. For example, `${ignore(ident ... a b c ...)}` fn check_trailing_token<'sess>( - iter: &mut CursorRef<'_>, + iter: &mut RefTokenTreeCursor<'_>, sess: &'sess ParseSess, ) -> PResult<'sess, ()> { if let Some(tt) = iter.next() { @@ -88,7 +88,7 @@ fn check_trailing_token<'sess>( /// Parse a meta-variable `count` expression: `count(ident[, depth])` fn parse_count<'sess>( - iter: &mut CursorRef<'_>, + iter: &mut RefTokenTreeCursor<'_>, sess: &'sess ParseSess, span: Span, ) -> PResult<'sess, MetaVarExpr> { @@ -99,7 +99,7 @@ fn parse_count<'sess>( /// Parses the depth used by index(depth) and length(depth). fn parse_depth<'sess>( - iter: &mut CursorRef<'_>, + iter: &mut RefTokenTreeCursor<'_>, sess: &'sess ParseSess, span: Span, ) -> PResult<'sess, usize> { @@ -126,7 +126,7 @@ fn parse_depth<'sess>( /// Parses an generic ident fn parse_ident<'sess>( - iter: &mut CursorRef<'_>, + iter: &mut RefTokenTreeCursor<'_>, sess: &'sess ParseSess, span: Span, ) -> PResult<'sess, Ident> { @@ -152,7 +152,7 @@ fn parse_ident<'sess>( /// Tries to move the iterator forward returning `true` if there is a comma. If not, then the /// iterator is not modified and the result is `false`. -fn try_eat_comma(iter: &mut CursorRef<'_>) -> bool { +fn try_eat_comma(iter: &mut RefTokenTreeCursor<'_>) -> bool { if let Some(TokenTree::Token(token::Token { kind: token::Comma, .. }, _)) = iter.look_ahead(0) { let _ = iter.next(); return true; diff --git a/compiler/rustc_feature/src/active.rs b/compiler/rustc_feature/src/active.rs index 323f5a368fc0..21d211eefbef 100644 --- a/compiler/rustc_feature/src/active.rs +++ b/compiler/rustc_feature/src/active.rs @@ -164,6 +164,8 @@ declare_features! ( (active, multiple_supertrait_upcastable, "CURRENT_RUSTC_VERSION", None, None), /// Allows using `#[omit_gdb_pretty_printer_section]`. (active, omit_gdb_pretty_printer_section, "1.5.0", None, None), + /// Allows using `+bundled,+whole-archive` native libs. + (active, packed_bundled_libs, "1.67.0", None, None), /// Allows using `#[prelude_import]` on glob `use` items. (active, prelude_import, "1.2.0", None, None), /// Used to identify crates that contain the profiler runtime. diff --git a/compiler/rustc_hir_analysis/Cargo.toml b/compiler/rustc_hir_analysis/Cargo.toml index 0761d8cdbd8f..c939c8303bf2 100644 --- a/compiler/rustc_hir_analysis/Cargo.toml +++ b/compiler/rustc_hir_analysis/Cargo.toml @@ -15,9 +15,7 @@ rustc_middle = { path = "../rustc_middle" } rustc_attr = { path = "../rustc_attr" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } -rustc_graphviz = { path = "../rustc_graphviz" } rustc_hir = { path = "../rustc_hir" } -rustc_hir_pretty = { path = "../rustc_hir_pretty" } rustc_target = { path = "../rustc_target" } rustc_session = { path = "../rustc_session" } smallvec = { version = "1.8.1", features = ["union", "may_dangle"] } @@ -27,6 +25,5 @@ rustc_index = { path = "../rustc_index" } rustc_infer = { path = "../rustc_infer" } rustc_trait_selection = { path = "../rustc_trait_selection" } rustc_lint = { path = "../rustc_lint" } -rustc_serialize = { path = "../rustc_serialize" } rustc_type_ir = { path = "../rustc_type_ir" } rustc_feature = { path = "../rustc_feature" } diff --git a/compiler/rustc_hir_analysis/src/astconv/mod.rs b/compiler/rustc_hir_analysis/src/astconv/mod.rs index bec9f0ff0772..3d5f189e233b 100644 --- a/compiler/rustc_hir_analysis/src/astconv/mod.rs +++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs @@ -2945,12 +2945,12 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { if r.is_erased() { tcx.lifetimes.re_static } else { r } }); let span = ast_ty.span; - tcx.sess.emit_err(TypeofReservedKeywordUsed { - span, - ty, - opt_sugg: Some((span, Applicability::MachineApplicable)) - .filter(|_| ty.is_suggestable(tcx, false)), - }); + let (ty, opt_sugg) = if let Some(ty) = ty.make_suggestable(tcx, false) { + (ty, Some((span, Applicability::MachineApplicable))) + } else { + (ty, None) + }; + tcx.sess.emit_err(TypeofReservedKeywordUsed { span, ty, opt_sugg }); ty } diff --git a/compiler/rustc_hir_analysis/src/coherence/orphan.rs b/compiler/rustc_hir_analysis/src/coherence/orphan.rs index 95b03eb8263f..7d381d8902ac 100644 --- a/compiler/rustc_hir_analysis/src/coherence/orphan.rs +++ b/compiler/rustc_hir_analysis/src/coherence/orphan.rs @@ -8,7 +8,7 @@ use rustc_hir as hir; use rustc_middle::ty::subst::InternalSubsts; use rustc_middle::ty::util::IgnoreRegions; use rustc_middle::ty::{ - self, ImplPolarity, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitor, + self, AliasKind, ImplPolarity, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitor, }; use rustc_session::lint; use rustc_span::def_id::{DefId, LocalDefId}; @@ -86,7 +86,7 @@ fn do_orphan_check_impl<'tcx>( // struct B { } // impl Foo for A { } // impl Foo for B { } - // impl !Send for (A, B) { } + // impl !Foo for (A, B) { } // ``` // // This final impl is legal according to the orphan @@ -99,50 +99,193 @@ fn do_orphan_check_impl<'tcx>( tcx.trait_is_auto(trait_def_id) ); - if tcx.trait_is_auto(trait_def_id) && !trait_def_id.is_local() { + if tcx.trait_is_auto(trait_def_id) { let self_ty = trait_ref.self_ty(); - let opt_self_def_id = match *self_ty.kind() { - ty::Adt(self_def, _) => Some(self_def.did()), - ty::Foreign(did) => Some(did), - _ => None, + + // If the impl is in the same crate as the auto-trait, almost anything + // goes. + // + // impl MyAuto for Rc {} // okay + // impl !MyAuto for *const T {} // okay + // impl MyAuto for T {} // okay + // + // But there is one important exception: implementing for a trait object + // is not allowed. + // + // impl MyAuto for dyn Trait {} // NOT OKAY + // impl MyAuto for T {} // NOT OKAY + // + // With this restriction, it's guaranteed that an auto-trait is + // implemented for a trait object if and only if the auto-trait is one + // of the trait object's trait bounds (or a supertrait of a bound). In + // other words `dyn Trait + AutoTrait` always implements AutoTrait, + // while `dyn Trait` never implements AutoTrait. + // + // This is necessary in order for autotrait bounds on methods of trait + // objects to be sound. + // + // auto trait AutoTrait {} + // + // trait ObjectSafeTrait { + // fn f(&self) where Self: AutoTrait; + // } + // + // We can allow f to be called on `dyn ObjectSafeTrait + AutoTrait`. + // + // If we didn't deny `impl AutoTrait for dyn Trait`, it would be unsound + // for the ObjectSafeTrait shown above to be object safe because someone + // could take some type implementing ObjectSafeTrait but not AutoTrait, + // unsize it to `dyn ObjectSafeTrait`, and call .f() which has no + // concrete implementation (issue #50781). + enum LocalImpl { + Allow, + Disallow { problematic_kind: &'static str }, + } + + // If the auto-trait is from a dependency, it must only be getting + // implemented for a nominal type, and specifically one local to the + // current crate. + // + // impl Sync for MyStruct {} // okay + // + // impl Sync for Rc {} // NOT OKAY + enum NonlocalImpl { + Allow, + DisallowBecauseNonlocal, + DisallowOther, + } + + // Exhaustive match considering that this logic is essential for + // soundness. + let (local_impl, nonlocal_impl) = match self_ty.kind() { + // struct Struct; + // impl AutoTrait for Struct {} + ty::Adt(self_def, _) => ( + LocalImpl::Allow, + if self_def.did().is_local() { + NonlocalImpl::Allow + } else { + NonlocalImpl::DisallowBecauseNonlocal + }, + ), + + // extern { type OpaqueType; } + // impl AutoTrait for OpaqueType {} + ty::Foreign(did) => ( + LocalImpl::Allow, + if did.is_local() { + NonlocalImpl::Allow + } else { + NonlocalImpl::DisallowBecauseNonlocal + }, + ), + + // impl AutoTrait for dyn Trait {} + ty::Dynamic(..) => ( + LocalImpl::Disallow { problematic_kind: "trait object" }, + NonlocalImpl::DisallowOther, + ), + + // impl AutoTrait for T {} + // impl AutoTrait for T {} + ty::Param(..) => ( + if self_ty.is_sized(tcx, tcx.param_env(def_id)) { + LocalImpl::Allow + } else { + LocalImpl::Disallow { problematic_kind: "generic type" } + }, + NonlocalImpl::DisallowOther, + ), + + // trait Id { type This: ?Sized; } + // impl Id for T { + // type This = T; + // } + // impl AutoTrait for ::This {} + ty::Alias(AliasKind::Projection, _) => ( + LocalImpl::Disallow { problematic_kind: "associated type" }, + NonlocalImpl::DisallowOther, + ), + + // type Opaque = impl Trait; + // impl AutoTrait for Opaque {} + ty::Alias(AliasKind::Opaque, _) => ( + LocalImpl::Disallow { problematic_kind: "opaque type" }, + NonlocalImpl::DisallowOther, + ), + + ty::Bool + | ty::Char + | ty::Int(..) + | ty::Uint(..) + | ty::Float(..) + | ty::Str + | ty::Array(..) + | ty::Slice(..) + | ty::RawPtr(..) + | ty::Ref(..) + | ty::FnDef(..) + | ty::FnPtr(..) + | ty::Never + | ty::Tuple(..) => (LocalImpl::Allow, NonlocalImpl::DisallowOther), + + ty::Closure(..) + | ty::Generator(..) + | ty::GeneratorWitness(..) + | ty::GeneratorWitnessMIR(..) + | ty::Bound(..) + | ty::Placeholder(..) + | ty::Infer(..) => span_bug!(sp, "weird self type for autotrait impl"), + + ty::Error(..) => (LocalImpl::Allow, NonlocalImpl::Allow), }; - let msg = match opt_self_def_id { - // We only want to permit nominal types, but not *all* nominal types. - // They must be local to the current crate, so that people - // can't do `unsafe impl Send for Rc` or - // `impl !Send for Box`. - Some(self_def_id) => { - if self_def_id.is_local() { - None - } else { - Some(( - format!( - "cross-crate traits with a default impl, like `{}`, \ - can only be implemented for a struct/enum type \ - defined in the current crate", - tcx.def_path_str(trait_def_id) - ), - "can't implement cross-crate trait for type in another crate", - )) + if trait_def_id.is_local() { + match local_impl { + LocalImpl::Allow => {} + LocalImpl::Disallow { problematic_kind } => { + let msg = format!( + "traits with a default impl, like `{trait}`, \ + cannot be implemented for {problematic_kind} `{self_ty}`", + trait = tcx.def_path_str(trait_def_id), + ); + let label = format!( + "a trait object implements `{trait}` if and only if `{trait}` \ + is one of the trait object's trait bounds", + trait = tcx.def_path_str(trait_def_id), + ); + let reported = + struct_span_err!(tcx.sess, sp, E0321, "{}", msg).note(label).emit(); + return Err(reported); } } - _ => Some(( - format!( - "cross-crate traits with a default impl, like `{}`, can \ + } else { + if let Some((msg, label)) = match nonlocal_impl { + NonlocalImpl::Allow => None, + NonlocalImpl::DisallowBecauseNonlocal => Some(( + format!( + "cross-crate traits with a default impl, like `{}`, \ + can only be implemented for a struct/enum type \ + defined in the current crate", + tcx.def_path_str(trait_def_id) + ), + "can't implement cross-crate trait for type in another crate", + )), + NonlocalImpl::DisallowOther => Some(( + format!( + "cross-crate traits with a default impl, like `{}`, can \ only be implemented for a struct/enum type, not `{}`", - tcx.def_path_str(trait_def_id), - self_ty - ), - "can't implement cross-crate trait with a default impl for \ - non-struct/enum type", - )), - }; - - if let Some((msg, label)) = msg { - let reported = - struct_span_err!(tcx.sess, sp, E0321, "{}", msg).span_label(sp, label).emit(); - return Err(reported); + tcx.def_path_str(trait_def_id), + self_ty + ), + "can't implement cross-crate trait with a default impl for \ + non-struct/enum type", + )), + } { + let reported = + struct_span_err!(tcx.sess, sp, E0321, "{}", msg).span_label(sp, label).emit(); + return Err(reported); + } } } diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index cc7235a61c0b..80426c239ac8 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -1199,28 +1199,22 @@ fn infer_return_ty_for_fn_sig<'tcx>( visitor.visit_ty(ty); let mut diag = bad_placeholder(tcx, visitor.0, "return type"); let ret_ty = fn_sig.output(); - if ret_ty.is_suggestable(tcx, false) { + if let Some(ret_ty) = ret_ty.make_suggestable(tcx, false) { diag.span_suggestion( ty.span, "replace with the correct return type", ret_ty, Applicability::MachineApplicable, ); - } else if matches!(ret_ty.kind(), ty::FnDef(..)) { - let fn_sig = ret_ty.fn_sig(tcx); - if fn_sig - .skip_binder() - .inputs_and_output - .iter() - .all(|t| t.is_suggestable(tcx, false)) - { - diag.span_suggestion( - ty.span, - "replace with the correct return type", - fn_sig, - Applicability::MachineApplicable, - ); - } + } else if matches!(ret_ty.kind(), ty::FnDef(..)) + && let Some(fn_sig) = ret_ty.fn_sig(tcx).make_suggestable(tcx, false) + { + diag.span_suggestion( + ty.span, + "replace with the correct return type", + fn_sig, + Applicability::MachineApplicable, + ); } else if let Some(sugg) = suggest_impl_trait(tcx, ret_ty, ty.span, hir_id, def_id) { diag.span_suggestion( ty.span, @@ -1280,9 +1274,7 @@ fn suggest_impl_trait<'tcx>( let trait_name = tcx.item_name(trait_def_id); let args_tuple = substs.type_at(1); let ty::Tuple(types) = *args_tuple.kind() else { return None; }; - if !types.is_suggestable(tcx, false) { - return None; - } + let types = types.make_suggestable(tcx, false)?; let maybe_ret = if item_ty.is_unit() { String::new() } else { format!(" -> {item_ty}") }; Some(format!( @@ -1337,7 +1329,7 @@ fn suggest_impl_trait<'tcx>( // FIXME(compiler-errors): We may benefit from resolving regions here. if ocx.select_where_possible().is_empty() && let item_ty = infcx.resolve_vars_if_possible(item_ty) - && item_ty.is_suggestable(tcx, false) + && let Some(item_ty) = item_ty.make_suggestable(tcx, false) && let Some(sugg) = formatter(tcx, infcx.resolve_vars_if_possible(substs), trait_def_id, assoc_item_def_id, item_ty) { return Some(sugg); diff --git a/compiler/rustc_hir_analysis/src/collect/type_of.rs b/compiler/rustc_hir_analysis/src/collect/type_of.rs index e7b0846e1035..c5522c94874d 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of.rs @@ -8,7 +8,9 @@ use rustc_middle::hir::nested_filter; use rustc_middle::ty::print::with_forced_trimmed_paths; use rustc_middle::ty::subst::InternalSubsts; use rustc_middle::ty::util::IntTypeExt; -use rustc_middle::ty::{self, DefIdTree, Ty, TyCtxt, TypeFolder, TypeSuperFoldable, TypeVisitable}; +use rustc_middle::ty::{ + self, DefIdTree, IsSuggestable, Ty, TyCtxt, TypeFolder, TypeSuperFoldable, TypeVisitable, +}; use rustc_span::symbol::Ident; use rustc_span::{Span, DUMMY_SP}; @@ -845,37 +847,23 @@ fn infer_placeholder_type<'a>( ) -> Ty<'a> { // Attempts to make the type nameable by turning FnDefs into FnPtrs. struct MakeNameable<'tcx> { - success: bool, tcx: TyCtxt<'tcx>, } - impl<'tcx> MakeNameable<'tcx> { - fn new(tcx: TyCtxt<'tcx>) -> Self { - MakeNameable { success: true, tcx } - } - } - impl<'tcx> TypeFolder<'tcx> for MakeNameable<'tcx> { fn tcx(&self) -> TyCtxt<'tcx> { self.tcx } fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> { - if !self.success { - return ty; - } - - match ty.kind() { + let ty = match *ty.kind() { ty::FnDef(def_id, substs) => { - self.tcx.mk_fn_ptr(self.tcx.fn_sig(*def_id).subst(self.tcx, substs)) + self.tcx.mk_fn_ptr(self.tcx.fn_sig(def_id).subst(self.tcx, substs)) } - // FIXME: non-capturing closures should also suggest a function pointer - ty::Closure(..) | ty::Generator(..) => { - self.success = false; - ty - } - _ => ty.super_fold_with(self), - } + _ => ty, + }; + + ty.super_fold_with(self) } } @@ -898,15 +886,11 @@ fn infer_placeholder_type<'a>( suggestions.clear(); } - // Suggesting unnameable types won't help. - let mut mk_nameable = MakeNameable::new(tcx); - let ty = mk_nameable.fold_ty(ty); - let sugg_ty = if mk_nameable.success { Some(ty) } else { None }; - if let Some(sugg_ty) = sugg_ty { + if let Some(ty) = ty.make_suggestable(tcx, false) { err.span_suggestion( span, &format!("provide a type for the {item}", item = kind), - format!("{colon} {sugg_ty}"), + format!("{colon} {ty}"), Applicability::MachineApplicable, ); } else { @@ -923,15 +907,12 @@ fn infer_placeholder_type<'a>( let mut diag = bad_placeholder(tcx, vec![span], kind); if !ty.references_error() { - let mut mk_nameable = MakeNameable::new(tcx); - let ty = mk_nameable.fold_ty(ty); - let sugg_ty = if mk_nameable.success { Some(ty) } else { None }; - if let Some(sugg_ty) = sugg_ty { + if let Some(ty) = ty.make_suggestable(tcx, false) { diag.span_suggestion( span, "replace with the correct type", - sugg_ty, - Applicability::MaybeIncorrect, + ty, + Applicability::MachineApplicable, ); } else { with_forced_trimmed_paths!(diag.span_note( diff --git a/compiler/rustc_hir_typeck/src/demand.rs b/compiler/rustc_hir_typeck/src/demand.rs index 19b8fb96cde3..c4905a934cb4 100644 --- a/compiler/rustc_hir_typeck/src/demand.rs +++ b/compiler/rustc_hir_typeck/src/demand.rs @@ -60,6 +60,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { || self.suggest_clone_for_ref(err, expr, expr_ty, expected) || self.suggest_into(err, expr, expr_ty, expected) || self.suggest_floating_point_literal(err, expr, expected) + || self.suggest_null_ptr_for_literal_zero_given_to_ptr_arg(err, expr, expected) || self.note_result_coercion(err, expr, expected, expr_ty); if !suggested { self.point_at_expr_source_of_inferred_type(err, expr, expr_ty, expected, expr.span); diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index 237142acca66..e84b3de124c5 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -921,6 +921,22 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { kind: hir::ImplItemKind::Fn(ref sig, ..), .. }) => Some((&sig.decl, ident, false)), + Node::Expr(&hir::Expr { + hir_id, + kind: hir::ExprKind::Closure(..), + .. + }) if let Some(Node::Expr(&hir::Expr { + hir_id, + kind: hir::ExprKind::Call(..), + .. + })) = self.tcx.hir().find_parent(hir_id) && + let Some(Node::Item(&hir::Item { + ident, + kind: hir::ItemKind::Fn(ref sig, ..), + .. + })) = self.tcx.hir().find_parent(hir_id) => { + Some((&sig.decl, ident, ident.name != sym::main)) + }, _ => None, } } diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs new file mode 100644 index 000000000000..2eab68050d43 --- /dev/null +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs @@ -0,0 +1,457 @@ +use crate::FnCtxt; +use rustc_hir as hir; +use rustc_hir::def::Res; +use rustc_middle::ty::{self, DefIdTree, Ty}; +use rustc_trait_selection::traits; + +impl<'a, 'tcx> FnCtxt<'a, 'tcx> { + /** + * Recursively searches for the most-specific blamable expression. + * For example, if you have a chain of constraints like: + * - want `Vec: Copy` + * - because `Option>: Copy` needs `Vec: Copy` because `impl Copy for Option` + * - because `(Option, bool)` needs `Option>: Copy` because `impl Copy for (A, B)` + * then if you pass in `(Some(vec![1, 2, 3]), false)`, this helper `point_at_specific_expr_if_possible` + * will find the expression `vec![1, 2, 3]` as the "most blameable" reason for this missing constraint. + * + * This function only updates the error span. + */ + pub fn blame_specific_expr_if_possible( + &self, + error: &mut traits::FulfillmentError<'tcx>, + expr: &'tcx hir::Expr<'tcx>, + ) { + // Whether it succeeded or failed, it likely made some amount of progress. + // In the very worst case, it's just the same `expr` we originally passed in. + let expr = match self.blame_specific_expr_if_possible_for_obligation_cause_code( + &error.obligation.cause.code(), + expr, + ) { + Ok(expr) => expr, + Err(expr) => expr, + }; + + // Either way, use this expression to update the error span. + // If it doesn't overlap the existing span at all, use the original span. + // FIXME: It would possibly be better to do this more continuously, at each level... + error.obligation.cause.span = expr + .span + .find_ancestor_in_same_ctxt(error.obligation.cause.span) + .unwrap_or(error.obligation.cause.span); + } + + fn blame_specific_expr_if_possible_for_obligation_cause_code( + &self, + obligation_cause_code: &traits::ObligationCauseCode<'tcx>, + expr: &'tcx hir::Expr<'tcx>, + ) -> Result<&'tcx hir::Expr<'tcx>, &'tcx hir::Expr<'tcx>> { + match obligation_cause_code { + traits::ObligationCauseCode::ExprBindingObligation(_, _, _, _) => { + // This is the "root"; we assume that the `expr` is already pointing here. + // Therefore, we return `Ok` so that this `expr` can be refined further. + Ok(expr) + } + traits::ObligationCauseCode::ImplDerivedObligation(impl_derived) => self + .blame_specific_expr_if_possible_for_derived_predicate_obligation( + impl_derived, + expr, + ), + _ => { + // We don't recognize this kind of constraint, so we cannot refine the expression + // any further. + Err(expr) + } + } + } + + /// We want to achieve the error span in the following example: + /// + /// ```ignore (just for demonstration) + /// struct Burrito { + /// filling: Filling, + /// } + /// impl Delicious for Burrito {} + /// fn eat_delicious_food(_food: Food) {} + /// + /// fn will_type_error() { + /// eat_delicious_food(Burrito { filling: Kale }); + /// } // ^--- The trait bound `Kale: Delicious` + /// // is not satisfied + /// ``` + /// + /// Without calling this function, the error span will cover the entire argument expression. + /// + /// Before we do any of this logic, we recursively call `point_at_specific_expr_if_possible` on the parent + /// obligation. Hence we refine the `expr` "outwards-in" and bail at the first kind of expression/impl we don't recognize. + /// + /// This function returns a `Result<&Expr, &Expr>` - either way, it returns the `Expr` whose span should be + /// reported as an error. If it is `Ok`, then it means it refined successfull. If it is `Err`, then it may be + /// only a partial success - but it cannot be refined even further. + fn blame_specific_expr_if_possible_for_derived_predicate_obligation( + &self, + obligation: &traits::ImplDerivedObligationCause<'tcx>, + expr: &'tcx hir::Expr<'tcx>, + ) -> Result<&'tcx hir::Expr<'tcx>, &'tcx hir::Expr<'tcx>> { + // First, we attempt to refine the `expr` for our span using the parent obligation. + // If this cannot be done, then we are already stuck, so we stop early (hence the use + // of the `?` try operator here). + let expr = self.blame_specific_expr_if_possible_for_obligation_cause_code( + &*obligation.derived.parent_code, + expr, + )?; + + // This is the "trait" (meaning, the predicate "proved" by this `impl`) which provides the `Self` type we care about. + // For the purposes of this function, we hope that it is a `struct` type, and that our current `expr` is a literal of + // that struct type. + let impl_trait_self_ref: Option> = + self.tcx.impl_trait_ref(obligation.impl_def_id).map(|impl_def| impl_def.skip_binder()); + + let Some(impl_trait_self_ref) = impl_trait_self_ref else { + // It is possible that this is absent. In this case, we make no progress. + return Err(expr); + }; + + // We only really care about the `Self` type itself, which we extract from the ref. + let impl_self_ty: Ty<'tcx> = impl_trait_self_ref.self_ty(); + + let impl_predicates: ty::GenericPredicates<'tcx> = + self.tcx.predicates_of(obligation.impl_def_id); + let Some(impl_predicate_index) = obligation.impl_def_predicate_index else { + // We don't have the index, so we can only guess. + return Err(expr); + }; + + if impl_predicate_index >= impl_predicates.predicates.len() { + // This shouldn't happen, but since this is only a diagnostic improvement, avoid breaking things. + return Err(expr); + } + let relevant_broken_predicate: ty::PredicateKind<'tcx> = + impl_predicates.predicates[impl_predicate_index].0.kind().skip_binder(); + + match relevant_broken_predicate { + ty::PredicateKind::Clause(ty::Clause::Trait(broken_trait)) => { + // ... + self.blame_specific_part_of_expr_corresponding_to_generic_param( + broken_trait.trait_ref.self_ty().into(), + expr, + impl_self_ty.into(), + ) + } + _ => Err(expr), + } + } + + /// Drills into `expr` to arrive at the equivalent location of `find_generic_param` in `in_ty`. + /// For example, given + /// - expr: `(Some(vec![1, 2, 3]), false)` + /// - param: `T` + /// - in_ty: `(Option, bool)` + /// we would drill until we arrive at `vec![1, 2, 3]`. + /// + /// If successful, we return `Ok(refined_expr)`. If unsuccesful, we return `Err(partially_refined_expr`), + /// which will go as far as possible. For example, given `(foo(), false)` instead, we would drill to + /// `foo()` and then return `Err("foo()")`. + /// + /// This means that you can (and should) use the `?` try operator to chain multiple calls to this + /// function with different types, since you can only continue drilling the second time if you + /// succeeded the first time. + fn blame_specific_part_of_expr_corresponding_to_generic_param( + &self, + param: ty::GenericArg<'tcx>, + expr: &'tcx hir::Expr<'tcx>, + in_ty: ty::GenericArg<'tcx>, + ) -> Result<&'tcx hir::Expr<'tcx>, &'tcx hir::Expr<'tcx>> { + if param == in_ty { + // The types match exactly, so we have drilled as far as we can. + return Ok(expr); + } + + let ty::GenericArgKind::Type(in_ty) = in_ty.unpack() else { + return Err(expr); + }; + + if let (hir::ExprKind::Tup(expr_elements), ty::Tuple(in_ty_elements)) = + (&expr.kind, in_ty.kind()) + { + if in_ty_elements.len() != expr_elements.len() { + return Err(expr); + } + // Find out which of `in_ty_elements` refer to `param`. + // FIXME: It may be better to take the first if there are multiple, + // just so that the error points to a smaller expression. + let Some((drill_expr, drill_ty)) = Self::is_iterator_singleton(expr_elements.iter().zip( in_ty_elements.iter()).filter(|(_expr_elem, in_ty_elem)| { + Self::find_param_in_ty((*in_ty_elem).into(), param) + })) else { + // The param is not mentioned, or it is mentioned in multiple indexes. + return Err(expr); + }; + + return self.blame_specific_part_of_expr_corresponding_to_generic_param( + param, + drill_expr, + drill_ty.into(), + ); + } + + if let ( + hir::ExprKind::Struct(expr_struct_path, expr_struct_fields, _expr_struct_rest), + ty::Adt(in_ty_adt, in_ty_adt_generic_args), + ) = (&expr.kind, in_ty.kind()) + { + // First, confirm that this struct is the same one as in the types, and if so, + // find the right variant. + let Res::Def(expr_struct_def_kind, expr_struct_def_id) = self.typeck_results.borrow().qpath_res(expr_struct_path, expr.hir_id) else { + return Err(expr); + }; + + let variant_def_id = match expr_struct_def_kind { + hir::def::DefKind::Struct => { + if in_ty_adt.did() != expr_struct_def_id { + // FIXME: Deal with type aliases? + return Err(expr); + } + expr_struct_def_id + } + hir::def::DefKind::Variant => { + // If this is a variant, its parent is the type definition. + if in_ty_adt.did() != self.tcx.parent(expr_struct_def_id) { + // FIXME: Deal with type aliases? + return Err(expr); + } + expr_struct_def_id + } + _ => { + return Err(expr); + } + }; + + // We need to know which of the generic parameters mentions our target param. + // We expect that at least one of them does, since it is expected to be mentioned. + let Some((drill_generic_index, generic_argument_type)) = + Self::is_iterator_singleton( + in_ty_adt_generic_args.iter().enumerate().filter( + |(_index, in_ty_generic)| { + Self::find_param_in_ty(*in_ty_generic, param) + }, + ), + ) else { + return Err(expr); + }; + + let struct_generic_parameters: &ty::Generics = self.tcx.generics_of(in_ty_adt.did()); + if drill_generic_index >= struct_generic_parameters.params.len() { + return Err(expr); + } + + let param_to_point_at_in_struct = self.tcx.mk_param_from_def( + struct_generic_parameters.param_at(drill_generic_index, self.tcx), + ); + + // We make 3 steps: + // Suppose we have a type like + // ```ignore (just for demonstration) + // struct ExampleStruct { + // enabled: bool, + // item: Option<(usize, T, bool)>, + // } + // + // f(ExampleStruct { + // enabled: false, + // item: Some((0, Box::new(String::new()), 1) }, true)), + // }); + // ``` + // Here, `f` is passed a `ExampleStruct>`, but it wants + // for `String: Copy`, which isn't true here. + // + // (1) First, we drill into `.item` and highlight that expression + // (2) Then we use the template type `Option<(usize, T, bool)>` to + // drill into the `T`, arriving at a `Box` expression. + // (3) Then we keep going, drilling into this expression using our + // outer contextual information. + + // (1) Find the (unique) field which mentions the type in our constraint: + let (field_expr, field_type) = self + .point_at_field_if_possible( + in_ty_adt.did(), + param_to_point_at_in_struct, + variant_def_id, + expr_struct_fields, + ) + .ok_or(expr)?; + + // (2) Continue drilling into the struct, ignoring the struct's + // generic argument types. + let expr = self.blame_specific_part_of_expr_corresponding_to_generic_param( + param_to_point_at_in_struct, + field_expr, + field_type.into(), + )?; + + // (3) Continue drilling into the expression, having "passed + // through" the struct entirely. + return self.blame_specific_part_of_expr_corresponding_to_generic_param( + param, + expr, + generic_argument_type, + ); + } + + if let ( + hir::ExprKind::Call(expr_callee, expr_args), + ty::Adt(in_ty_adt, in_ty_adt_generic_args), + ) = (&expr.kind, in_ty.kind()) + { + let hir::ExprKind::Path(expr_callee_path) = &expr_callee.kind else { + // FIXME: This case overlaps with another one worth handling, + // which should happen above since it applies to non-ADTs: + // we can drill down into regular generic functions. + return Err(expr); + }; + // This is (possibly) a constructor call, like `Some(...)` or `MyStruct(a, b, c)`. + + let Res::Def(expr_struct_def_kind, expr_ctor_def_id) = self.typeck_results.borrow().qpath_res(expr_callee_path, expr_callee.hir_id) else { + return Err(expr); + }; + + let variant_def_id = match expr_struct_def_kind { + hir::def::DefKind::Ctor(hir::def::CtorOf::Struct, hir::def::CtorKind::Fn) => { + if in_ty_adt.did() != self.tcx.parent(expr_ctor_def_id) { + // FIXME: Deal with type aliases? + return Err(expr); + } + self.tcx.parent(expr_ctor_def_id) + } + hir::def::DefKind::Ctor(hir::def::CtorOf::Variant, hir::def::CtorKind::Fn) => { + // If this is a variant, its parent is the type definition. + if in_ty_adt.did() != self.tcx.parent(expr_ctor_def_id) { + // FIXME: Deal with type aliases? + return Err(expr); + } + expr_ctor_def_id + } + _ => { + return Err(expr); + } + }; + + // We need to know which of the generic parameters mentions our target param. + // We expect that at least one of them does, since it is expected to be mentioned. + let Some((drill_generic_index, generic_argument_type)) = + Self::is_iterator_singleton( + in_ty_adt_generic_args.iter().enumerate().filter( + |(_index, in_ty_generic)| { + Self::find_param_in_ty(*in_ty_generic, param) + }, + ), + ) else { + return Err(expr); + }; + + let struct_generic_parameters: &ty::Generics = self.tcx.generics_of(in_ty_adt.did()); + if drill_generic_index >= struct_generic_parameters.params.len() { + return Err(expr); + } + + let param_to_point_at_in_struct = self.tcx.mk_param_from_def( + struct_generic_parameters.param_at(drill_generic_index, self.tcx), + ); + + // We make 3 steps: + // Suppose we have a type like + // ```ignore (just for demonstration) + // struct ExampleStruct { + // enabled: bool, + // item: Option<(usize, T, bool)>, + // } + // + // f(ExampleStruct { + // enabled: false, + // item: Some((0, Box::new(String::new()), 1) }, true)), + // }); + // ``` + // Here, `f` is passed a `ExampleStruct>`, but it wants + // for `String: Copy`, which isn't true here. + // + // (1) First, we drill into `.item` and highlight that expression + // (2) Then we use the template type `Option<(usize, T, bool)>` to + // drill into the `T`, arriving at a `Box` expression. + // (3) Then we keep going, drilling into this expression using our + // outer contextual information. + + // (1) Find the (unique) field index which mentions the type in our constraint: + let Some((field_index, field_type)) = Self::is_iterator_singleton( + in_ty_adt + .variant_with_id(variant_def_id) + .fields + .iter() + .map(|field| field.ty(self.tcx, *in_ty_adt_generic_args)) + .enumerate() + .filter(|(_index, field_type)| Self::find_param_in_ty((*field_type).into(), param)) + ) else { + return Err(expr); + }; + + if field_index >= expr_args.len() { + return Err(expr); + } + + // (2) Continue drilling into the struct, ignoring the struct's + // generic argument types. + let expr = self.blame_specific_part_of_expr_corresponding_to_generic_param( + param_to_point_at_in_struct, + &expr_args[field_index], + field_type.into(), + )?; + + // (3) Continue drilling into the expression, having "passed + // through" the struct entirely. + return self.blame_specific_part_of_expr_corresponding_to_generic_param( + param, + expr, + generic_argument_type, + ); + } + + // At this point, none of the basic patterns matched. + // One major possibility which remains is that we have a function call. + // In this case, it's often possible to dive deeper into the call to find something to blame, + // but this is not always possible. + + Err(expr) + } + + // FIXME: This can be made into a private, non-impl function later. + /// Traverses the given ty (either a `ty::Ty` or a `ty::GenericArg`) and searches for references + /// to the given `param_to_point_at`. Returns `true` if it finds any use of the param. + pub fn find_param_in_ty( + ty: ty::GenericArg<'tcx>, + param_to_point_at: ty::GenericArg<'tcx>, + ) -> bool { + let mut walk = ty.walk(); + while let Some(arg) = walk.next() { + if arg == param_to_point_at { + return true; + } else if let ty::GenericArgKind::Type(ty) = arg.unpack() + && let ty::Alias(ty::Projection, ..) = ty.kind() + { + // This logic may seem a bit strange, but typically when + // we have a projection type in a function signature, the + // argument that's being passed into that signature is + // not actually constraining that projection's substs in + // a meaningful way. So we skip it, and see improvements + // in some UI tests. + walk.skip_current_subtree(); + } + } + false + } + + // FIXME: This can be made into a private, non-impl function later. + /// Returns `Some(iterator.next())` if it has exactly one item, and `None` otherwise. + pub fn is_iterator_singleton(mut iterator: impl Iterator) -> Option { + match (iterator.next(), iterator.next()) { + (_, Some(_)) => None, + (first, _) => first, + } + } +} diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index 47ef106e7503..1055ee953eae 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -34,9 +34,10 @@ use rustc_trait_selection::traits::{self, ObligationCauseCode, SelectionContext} use std::iter; use std::mem; -use std::ops::ControlFlow; use std::slice; +use std::ops::ControlFlow; + impl<'a, 'tcx> FnCtxt<'a, 'tcx> { pub(in super::super) fn check_casts(&mut self) { // don't hold the borrow to deferred_cast_checks while checking to avoid borrow checker errors @@ -1843,7 +1844,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .into_iter() .flatten() { - if self.point_at_arg_if_possible( + if self.blame_specific_arg_if_possible( error, def_id, param, @@ -1873,7 +1874,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .into_iter() .flatten() { - if self.point_at_arg_if_possible( + if self.blame_specific_arg_if_possible( error, def_id, param, @@ -1898,16 +1899,24 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { for param in [param_to_point_at, fallback_param_to_point_at, self_param_to_point_at] { - if let Some(param) = param - && self.point_at_field_if_possible( - error, + if let Some(param) = param { + let refined_expr = self.point_at_field_if_possible( def_id, param, variant_def_id, fields, - ) - { - return true; + ); + + match refined_expr { + None => {} + Some((refined_expr, _)) => { + error.obligation.cause.span = refined_expr + .span + .find_ancestor_in_same_ctxt(error.obligation.cause.span) + .unwrap_or(refined_expr.span); + return true; + } + } } } } @@ -1940,7 +1949,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } } - fn point_at_arg_if_possible( + /// - `blame_specific_*` means that the function will recursively traverse the expression, + /// looking for the most-specific-possible span to blame. + /// + /// - `point_at_*` means that the function will only go "one level", pointing at the specific + /// expression mentioned. + /// + /// `blame_specific_arg_if_possible` will find the most-specific expression anywhere inside + /// the provided function call expression, and mark it as responsible for the fullfillment + /// error. + fn blame_specific_arg_if_possible( &self, error: &mut traits::FulfillmentError<'tcx>, def_id: DefId, @@ -1959,13 +1977,20 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .inputs() .iter() .enumerate() - .filter(|(_, ty)| find_param_in_ty(**ty, param_to_point_at)) + .filter(|(_, ty)| Self::find_param_in_ty((**ty).into(), param_to_point_at)) .collect(); // If there's one field that references the given generic, great! if let [(idx, _)] = args_referencing_param.as_slice() && let Some(arg) = receiver .map_or(args.get(*idx), |rcvr| if *idx == 0 { Some(rcvr) } else { args.get(*idx - 1) }) { + error.obligation.cause.span = arg.span.find_ancestor_in_same_ctxt(error.obligation.cause.span).unwrap_or(arg.span); + + if let hir::Node::Expr(arg_expr) = self.tcx.hir().get(arg.hir_id) { + // This is more specific than pointing at the entire argument. + self.blame_specific_expr_if_possible(error, arg_expr) + } + error.obligation.cause.map_code(|parent_code| { ObligationCauseCode::FunctionArgumentObligation { arg_hir_id: arg.hir_id, @@ -1983,14 +2008,14 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { false } - fn point_at_field_if_possible( + // FIXME: Make this private and move to mod adjust_fulfillment_errors + pub fn point_at_field_if_possible( &self, - error: &mut traits::FulfillmentError<'tcx>, def_id: DefId, param_to_point_at: ty::GenericArg<'tcx>, variant_def_id: DefId, expr_fields: &[hir::ExprField<'tcx>], - ) -> bool { + ) -> Option<(&'tcx hir::Expr<'tcx>, Ty<'tcx>)> { let def = self.tcx.adt_def(def_id); let identity_substs = ty::InternalSubsts::identity_for_item(self.tcx, def_id); @@ -2000,7 +2025,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .iter() .filter(|field| { let field_ty = field.ty(self.tcx, identity_substs); - find_param_in_ty(field_ty, param_to_point_at) + Self::find_param_in_ty(field_ty.into(), param_to_point_at) }) .collect(); @@ -2010,17 +2035,12 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // same rules that check_expr_struct uses for macro hygiene. if self.tcx.adjust_ident(expr_field.ident, variant_def_id) == field.ident(self.tcx) { - error.obligation.cause.span = expr_field - .expr - .span - .find_ancestor_in_same_ctxt(error.obligation.cause.span) - .unwrap_or(expr_field.span); - return true; + return Some((expr_field.expr, self.tcx.type_of(field.did))); } } } - false + None } fn point_at_path_if_possible( @@ -2240,23 +2260,3 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } } } - -fn find_param_in_ty<'tcx>(ty: Ty<'tcx>, param_to_point_at: ty::GenericArg<'tcx>) -> bool { - let mut walk = ty.walk(); - while let Some(arg) = walk.next() { - if arg == param_to_point_at { - return true; - } else if let ty::GenericArgKind::Type(ty) = arg.unpack() - && let ty::Alias(ty::Projection, ..) = ty.kind() - { - // This logic may seem a bit strange, but typically when - // we have a projection type in a function signature, the - // argument that's being passed into that signature is - // not actually constraining that projection's substs in - // a meaningful way. So we skip it, and see improvements - // in some UI tests. - walk.skip_current_subtree(); - } - } - false -} diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs index 4940015ddd57..1e14eddd4c86 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs @@ -1,4 +1,5 @@ mod _impl; +mod adjust_fulfillment_errors; mod arg_matrix; mod checks; mod suggestions; diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index 6046e55c65c1..51e3e3ec73db 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -3,7 +3,7 @@ use super::FnCtxt; use crate::errors::{AddReturnTypeSuggestion, ExpectedReturnTypeLabel}; use crate::method::probe::{IsSuggestion, Mode, ProbeScope}; use rustc_ast::util::parser::{ExprPrecedence, PREC_POSTFIX}; -use rustc_errors::{Applicability, Diagnostic, MultiSpan}; +use rustc_errors::{fluent, Applicability, Diagnostic, MultiSpan}; use rustc_hir as hir; use rustc_hir::def::{CtorKind, CtorOf, DefKind}; use rustc_hir::lang_items::LangItem; @@ -13,6 +13,7 @@ use rustc_hir::{ use rustc_hir_analysis::astconv::AstConv; use rustc_infer::traits::{self, StatementAsExpression}; use rustc_middle::lint::in_external_macro; +use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_middle::ty::{ self, suggest_constraining_type_params, Binder, DefIdTree, IsSuggestable, ToPredicate, Ty, TypeVisitable, @@ -414,11 +415,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if let ty::Adt(adt, _) = peeled.kind() && Some(adt.did()) == self.tcx.lang_items().string() { + let sugg = if ref_cnt == 0 { + ".as_deref()" + } else { + ".map(|x| x.as_str())" + }; err.span_suggestion_verbose( expr.span.shrink_to_hi(), - "try converting the passed type into a `&str`", - format!(".map(|x| &*{}x)", "*".repeat(ref_cnt)), - Applicability::MaybeIncorrect, + fluent::hir_typeck_convert_to_str, + sugg, + Applicability::MachineApplicable, ); return true; } @@ -682,7 +688,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return true; } &hir::FnRetTy::DefaultReturn(span) if expected.is_unit() => { - if found.is_suggestable(self.tcx, false) { + if let Some(found) = found.make_suggestable(self.tcx, false) { err.subdiagnostic(AddReturnTypeSuggestion::Add { span, found: found.to_string() }); return true; } else if let ty::Closure(_, substs) = found.kind() @@ -699,10 +705,38 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } } hir::FnRetTy::Return(ty) => { + let span = ty.span; + + if let hir::TyKind::OpaqueDef(item_id, ..) = ty.kind + && let hir::Node::Item(hir::Item { + kind: hir::ItemKind::OpaqueTy(op_ty), + .. + }) = self.tcx.hir().get(item_id.hir_id()) + && let hir::OpaqueTy { + bounds: [bound], .. + } = op_ty + && let hir::GenericBound::LangItemTrait( + hir::LangItem::Future, _, _, generic_args) = bound + && let hir::GenericArgs { bindings: [ty_binding], .. } = generic_args + && let hir::TypeBinding { kind, .. } = ty_binding + && let hir::TypeBindingKind::Equality { term } = kind + && let hir::Term::Ty(term_ty) = term { + // Check if async function's return type was omitted. + // Don't emit suggestions if the found type is `impl Future<...>`. + debug!("suggest_missing_return_type: found = {:?}", found); + if found.is_suggestable(self.tcx, false) { + if term_ty.span.is_empty() { + err.subdiagnostic(AddReturnTypeSuggestion::Add { span, found: found.to_string() }); + return true; + } else { + err.subdiagnostic(ExpectedReturnTypeLabel::Other { span, expected }); + } + } + } + // Only point to return type if the expected type is the return type, as if they // are not, the expectation must have been caused by something else. debug!("suggest_missing_return_type: return type {:?} node {:?}", ty, ty.kind); - let span = ty.span; let ty = self.astconv().ast_ty_to_ty(ty); debug!("suggest_missing_return_type: return type {:?}", ty); debug!("suggest_missing_return_type: expected type {:?}", ty); @@ -1239,6 +1273,49 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } } + /// Suggest providing `std::ptr::null()` or `std::ptr::null_mut()` if they + /// pass in a literal 0 to an raw pointer. + #[instrument(skip(self, err))] + pub(crate) fn suggest_null_ptr_for_literal_zero_given_to_ptr_arg( + &self, + err: &mut Diagnostic, + expr: &hir::Expr<'_>, + expected_ty: Ty<'tcx>, + ) -> bool { + // Expected type needs to be a raw pointer. + let ty::RawPtr(ty::TypeAndMut { mutbl, .. }) = expected_ty.kind() else { + return false; + }; + + // Provided expression needs to be a literal `0`. + let ExprKind::Lit(Spanned { + node: rustc_ast::LitKind::Int(0, _), + span, + }) = expr.kind else { + return false; + }; + + // We need to find a null pointer symbol to suggest + let null_sym = match mutbl { + hir::Mutability::Not => sym::ptr_null, + hir::Mutability::Mut => sym::ptr_null_mut, + }; + let Some(null_did) = self.tcx.get_diagnostic_item(null_sym) else { + return false; + }; + let null_path_str = with_no_trimmed_paths!(self.tcx.def_path_str(null_did)); + + // We have satisfied all requirements to provide a suggestion. Emit it. + err.span_suggestion( + span, + format!("if you meant to create a null pointer, use `{null_path_str}()`"), + null_path_str + "()", + Applicability::MachineApplicable, + ); + + true + } + pub(crate) fn suggest_associated_const( &self, err: &mut Diagnostic, diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs index 0b30bf957a3d..9ab29a6778fc 100644 --- a/compiler/rustc_hir_typeck/src/method/probe.rs +++ b/compiler/rustc_hir_typeck/src/method/probe.rs @@ -1563,6 +1563,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { traits::ImplDerivedObligationCause { derived, impl_def_id, + impl_def_predicate_index: None, span, }, )) diff --git a/compiler/rustc_hir_typeck/src/op.rs b/compiler/rustc_hir_typeck/src/op.rs index 67769fe4478a..ba72aefe39c1 100644 --- a/compiler/rustc_hir_typeck/src/op.rs +++ b/compiler/rustc_hir_typeck/src/op.rs @@ -490,9 +490,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if let Some(output_def_id) = output_def_id && let Some(trait_def_id) = trait_def_id && self.tcx.parent(output_def_id) == trait_def_id - && output_ty.is_suggestable(self.tcx, false) + && let Some(output_ty) = output_ty.make_suggestable(self.tcx, false) { - Some(("Output", *output_ty)) + Some(("Output", output_ty)) } else { None } diff --git a/compiler/rustc_infer/Cargo.toml b/compiler/rustc_infer/Cargo.toml index aced787d6711..02ac83a5e8b2 100644 --- a/compiler/rustc_infer/Cargo.toml +++ b/compiler/rustc_infer/Cargo.toml @@ -15,7 +15,6 @@ rustc_hir = { path = "../rustc_hir" } rustc_index = { path = "../rustc_index" } rustc_macros = { path = "../rustc_macros" } rustc_serialize = { path = "../rustc_serialize" } -rustc_session = { path = "../rustc_session" } rustc_span = { path = "../rustc_span" } rustc_target = { path = "../rustc_target" } smallvec = { version = "1.8.1", features = ["union", "may_dangle"] } diff --git a/compiler/rustc_infer/src/infer/freshen.rs b/compiler/rustc_infer/src/infer/freshen.rs index 83d71edc2abd..2355234637c4 100644 --- a/compiler/rustc_infer/src/infer/freshen.rs +++ b/compiler/rustc_infer/src/infer/freshen.rs @@ -140,79 +140,21 @@ impl<'a, 'tcx> TypeFolder<'tcx> for TypeFreshener<'a, 'tcx> { } } + #[inline] fn fold_ty(&mut self, t: Ty<'tcx>) -> Ty<'tcx> { if !t.needs_infer() && !t.has_erasable_regions() { - return t; - } + t + } else { + match *t.kind() { + ty::Infer(v) => self.fold_infer_ty(v).unwrap_or(t), - let tcx = self.infcx.tcx; + // This code is hot enough that a non-debug assertion here makes a noticeable + // difference on benchmarks like `wg-grammar`. + #[cfg(debug_assertions)] + ty::Placeholder(..) | ty::Bound(..) => bug!("unexpected type {:?}", t), - match *t.kind() { - ty::Infer(ty::TyVar(v)) => { - let opt_ty = self.infcx.inner.borrow_mut().type_variables().probe(v).known(); - self.freshen_ty(opt_ty, ty::TyVar(v), ty::FreshTy) + _ => t.super_fold_with(self), } - - ty::Infer(ty::IntVar(v)) => self.freshen_ty( - self.infcx - .inner - .borrow_mut() - .int_unification_table() - .probe_value(v) - .map(|v| v.to_type(tcx)), - ty::IntVar(v), - ty::FreshIntTy, - ), - - ty::Infer(ty::FloatVar(v)) => self.freshen_ty( - self.infcx - .inner - .borrow_mut() - .float_unification_table() - .probe_value(v) - .map(|v| v.to_type(tcx)), - ty::FloatVar(v), - ty::FreshFloatTy, - ), - - ty::Infer(ty::FreshTy(ct) | ty::FreshIntTy(ct) | ty::FreshFloatTy(ct)) => { - if ct >= self.ty_freshen_count { - bug!( - "Encountered a freshend type with id {} \ - but our counter is only at {}", - ct, - self.ty_freshen_count - ); - } - t - } - - ty::Generator(..) - | ty::Bool - | ty::Char - | ty::Int(..) - | ty::Uint(..) - | ty::Float(..) - | ty::Adt(..) - | ty::Str - | ty::Error(_) - | ty::Array(..) - | ty::Slice(..) - | ty::RawPtr(..) - | ty::Ref(..) - | ty::FnDef(..) - | ty::FnPtr(_) - | ty::Dynamic(..) - | ty::Never - | ty::Tuple(..) - | ty::Alias(..) - | ty::Foreign(..) - | ty::Param(..) - | ty::Closure(..) - | ty::GeneratorWitnessMIR(..) - | ty::GeneratorWitness(..) => t.super_fold_with(self), - - ty::Placeholder(..) | ty::Bound(..) => bug!("unexpected type {:?}", t), } } @@ -253,3 +195,54 @@ impl<'a, 'tcx> TypeFolder<'tcx> for TypeFreshener<'a, 'tcx> { } } } + +impl<'a, 'tcx> TypeFreshener<'a, 'tcx> { + // This is separate from `fold_ty` to keep that method small and inlinable. + #[inline(never)] + fn fold_infer_ty(&mut self, v: ty::InferTy) -> Option> { + match v { + ty::TyVar(v) => { + let opt_ty = self.infcx.inner.borrow_mut().type_variables().probe(v).known(); + Some(self.freshen_ty(opt_ty, ty::TyVar(v), ty::FreshTy)) + } + + ty::IntVar(v) => Some( + self.freshen_ty( + self.infcx + .inner + .borrow_mut() + .int_unification_table() + .probe_value(v) + .map(|v| v.to_type(self.infcx.tcx)), + ty::IntVar(v), + ty::FreshIntTy, + ), + ), + + ty::FloatVar(v) => Some( + self.freshen_ty( + self.infcx + .inner + .borrow_mut() + .float_unification_table() + .probe_value(v) + .map(|v| v.to_type(self.infcx.tcx)), + ty::FloatVar(v), + ty::FreshFloatTy, + ), + ), + + ty::FreshTy(ct) | ty::FreshIntTy(ct) | ty::FreshFloatTy(ct) => { + if ct >= self.ty_freshen_count { + bug!( + "Encountered a freshend type with id {} \ + but our counter is only at {}", + ct, + self.ty_freshen_count + ); + } + None + } + } + } +} diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index f39170bb2916..8e0bcff8d0a8 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -30,7 +30,7 @@ use rustc_middle::ty::relate::RelateResult; use rustc_middle::ty::subst::{GenericArg, GenericArgKind, InternalSubsts, SubstsRef}; use rustc_middle::ty::visit::TypeVisitable; pub use rustc_middle::ty::IntVarValue; -use rustc_middle::ty::{self, GenericParamDefKind, InferConst, Ty, TyCtxt}; +use rustc_middle::ty::{self, GenericParamDefKind, InferConst, InferTy, Ty, TyCtxt}; use rustc_middle::ty::{ConstVid, FloatVid, IntVid, TyVid}; use rustc_span::symbol::Symbol; use rustc_span::Span; @@ -1389,8 +1389,8 @@ impl<'tcx> InferCtxt<'tcx> { where T: TypeFoldable<'tcx>, { - if !value.needs_infer() { - return value; // Avoid duplicated subst-folding. + if !value.has_non_region_infer() { + return value; } let mut r = resolve::OpportunisticVarResolver::new(self); value.fold_with(&mut r) @@ -1870,43 +1870,9 @@ impl<'a, 'tcx> TypeFolder<'tcx> for ShallowResolver<'a, 'tcx> { /// If `ty` is a type variable of some kind, resolve it one level /// (but do not resolve types found in the result). If `typ` is /// not a type variable, just return it unmodified. + #[inline] fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> { - match *ty.kind() { - ty::Infer(ty::TyVar(v)) => { - // Not entirely obvious: if `typ` is a type variable, - // it can be resolved to an int/float variable, which - // can then be recursively resolved, hence the - // recursion. Note though that we prevent type - // variables from unifying to other type variables - // directly (though they may be embedded - // structurally), and we prevent cycles in any case, - // so this recursion should always be of very limited - // depth. - // - // Note: if these two lines are combined into one we get - // dynamic borrow errors on `self.inner`. - let known = self.infcx.inner.borrow_mut().type_variables().probe(v).known(); - known.map_or(ty, |t| self.fold_ty(t)) - } - - ty::Infer(ty::IntVar(v)) => self - .infcx - .inner - .borrow_mut() - .int_unification_table() - .probe_value(v) - .map_or(ty, |v| v.to_type(self.infcx.tcx)), - - ty::Infer(ty::FloatVar(v)) => self - .infcx - .inner - .borrow_mut() - .float_unification_table() - .probe_value(v) - .map_or(ty, |v| v.to_type(self.infcx.tcx)), - - _ => ty, - } + if let ty::Infer(v) = ty.kind() { self.fold_infer_ty(*v).unwrap_or(ty) } else { ty } } fn fold_const(&mut self, ct: ty::Const<'tcx>) -> ty::Const<'tcx> { @@ -1925,6 +1891,49 @@ impl<'a, 'tcx> TypeFolder<'tcx> for ShallowResolver<'a, 'tcx> { } } +impl<'a, 'tcx> ShallowResolver<'a, 'tcx> { + // This is separate from `fold_ty` to keep that method small and inlinable. + #[inline(never)] + fn fold_infer_ty(&mut self, v: InferTy) -> Option> { + match v { + ty::TyVar(v) => { + // Not entirely obvious: if `typ` is a type variable, + // it can be resolved to an int/float variable, which + // can then be recursively resolved, hence the + // recursion. Note though that we prevent type + // variables from unifying to other type variables + // directly (though they may be embedded + // structurally), and we prevent cycles in any case, + // so this recursion should always be of very limited + // depth. + // + // Note: if these two lines are combined into one we get + // dynamic borrow errors on `self.inner`. + let known = self.infcx.inner.borrow_mut().type_variables().probe(v).known(); + known.map(|t| self.fold_ty(t)) + } + + ty::IntVar(v) => self + .infcx + .inner + .borrow_mut() + .int_unification_table() + .probe_value(v) + .map(|v| v.to_type(self.infcx.tcx)), + + ty::FloatVar(v) => self + .infcx + .inner + .borrow_mut() + .float_unification_table() + .probe_value(v) + .map(|v| v.to_type(self.infcx.tcx)), + + ty::FreshTy(_) | ty::FreshIntTy(_) | ty::FreshFloatTy(_) => None, + } + } +} + impl<'tcx> TypeTrace<'tcx> { pub fn span(&self) -> Span { self.cause.span diff --git a/compiler/rustc_infer/src/infer/nll_relate/mod.rs b/compiler/rustc_infer/src/infer/nll_relate/mod.rs index f83219b8ee2a..a2cfe8d88816 100644 --- a/compiler/rustc_infer/src/infer/nll_relate/mod.rs +++ b/compiler/rustc_infer/src/infer/nll_relate/mod.rs @@ -817,12 +817,13 @@ impl<'tcx, D> ConstEquateRelation<'tcx> for TypeRelating<'_, 'tcx, D> where D: TypeRelatingDelegate<'tcx>, { - fn const_equate_obligation(&mut self, _a: ty::Const<'tcx>, _b: ty::Const<'tcx>) { - // We don't have to worry about the equality of consts during borrow checking - // as consts always have a static lifetime. - // FIXME(oli-obk): is this really true? We can at least have HKL and with - // inline consts we may have further lifetimes that may be unsound to treat as - // 'static. + fn const_equate_obligation(&mut self, a: ty::Const<'tcx>, b: ty::Const<'tcx>) { + self.delegate.register_obligations(vec![Obligation::new( + self.tcx(), + ObligationCause::dummy(), + self.param_env(), + ty::Binder::dummy(ty::PredicateKind::ConstEquate(a, b)), + )]); } } diff --git a/compiler/rustc_infer/src/infer/resolve.rs b/compiler/rustc_infer/src/infer/resolve.rs index 65b90aa3d79d..a39a40cf9abe 100644 --- a/compiler/rustc_infer/src/infer/resolve.rs +++ b/compiler/rustc_infer/src/infer/resolve.rs @@ -16,26 +16,29 @@ use std::ops::ControlFlow; /// useful for printing messages etc but also required at various /// points for correctness. pub struct OpportunisticVarResolver<'a, 'tcx> { - infcx: &'a InferCtxt<'tcx>, + // The shallow resolver is used to resolve inference variables at every + // level of the type. + shallow_resolver: crate::infer::ShallowResolver<'a, 'tcx>, } impl<'a, 'tcx> OpportunisticVarResolver<'a, 'tcx> { #[inline] pub fn new(infcx: &'a InferCtxt<'tcx>) -> Self { - OpportunisticVarResolver { infcx } + OpportunisticVarResolver { shallow_resolver: crate::infer::ShallowResolver { infcx } } } } impl<'a, 'tcx> TypeFolder<'tcx> for OpportunisticVarResolver<'a, 'tcx> { fn tcx<'b>(&'b self) -> TyCtxt<'tcx> { - self.infcx.tcx + TypeFolder::tcx(&self.shallow_resolver) } + #[inline] fn fold_ty(&mut self, t: Ty<'tcx>) -> Ty<'tcx> { if !t.has_non_region_infer() { t // micro-optimize -- if there is nothing in this type that this fold affects... } else { - let t = self.infcx.shallow_resolve(t); + let t = self.shallow_resolver.fold_ty(t); t.super_fold_with(self) } } @@ -44,7 +47,7 @@ impl<'a, 'tcx> TypeFolder<'tcx> for OpportunisticVarResolver<'a, 'tcx> { if !ct.has_non_region_infer() { ct // micro-optimize -- if there is nothing in this const that this fold affects... } else { - let ct = self.infcx.shallow_resolve(ct); + let ct = self.shallow_resolver.fold_const(ct); ct.super_fold_with(self) } } diff --git a/compiler/rustc_infer/src/traits/util.rs b/compiler/rustc_infer/src/traits/util.rs index cd5bde2a7913..18a966449aa7 100644 --- a/compiler/rustc_infer/src/traits/util.rs +++ b/compiler/rustc_infer/src/traits/util.rs @@ -145,30 +145,32 @@ impl<'tcx> Elaborator<'tcx> { // Get predicates declared on the trait. let predicates = tcx.super_predicates_of(data.def_id()); - let obligations = predicates.predicates.iter().map(|&(mut pred, span)| { - // when parent predicate is non-const, elaborate it to non-const predicates. - if data.constness == ty::BoundConstness::NotConst { - pred = pred.without_const(tcx); - } + let obligations = + predicates.predicates.iter().enumerate().map(|(index, &(mut pred, span))| { + // when parent predicate is non-const, elaborate it to non-const predicates. + if data.constness == ty::BoundConstness::NotConst { + pred = pred.without_const(tcx); + } - let cause = obligation.cause.clone().derived_cause( - bound_predicate.rebind(data), - |derived| { - traits::ImplDerivedObligation(Box::new( - traits::ImplDerivedObligationCause { - derived, - impl_def_id: data.def_id(), - span, - }, - )) - }, - ); - predicate_obligation( - pred.subst_supertrait(tcx, &bound_predicate.rebind(data.trait_ref)), - obligation.param_env, - cause, - ) - }); + let cause = obligation.cause.clone().derived_cause( + bound_predicate.rebind(data), + |derived| { + traits::ImplDerivedObligation(Box::new( + traits::ImplDerivedObligationCause { + derived, + impl_def_id: data.def_id(), + impl_def_predicate_index: Some(index), + span, + }, + )) + }, + ); + predicate_obligation( + pred.subst_supertrait(tcx, &bound_predicate.rebind(data.trait_ref)), + obligation.param_env, + cause, + ) + }); debug!(?data, ?obligations, "super_predicates"); // Only keep those bounds that we haven't already seen. diff --git a/compiler/rustc_interface/Cargo.toml b/compiler/rustc_interface/Cargo.toml index 1199ff287c43..955ab3c4680a 100644 --- a/compiler/rustc_interface/Cargo.toml +++ b/compiler/rustc_interface/Cargo.toml @@ -20,7 +20,6 @@ rustc_macros = { path = "../rustc_macros" } rustc_parse = { path = "../rustc_parse" } rustc_session = { path = "../rustc_session" } rustc_span = { path = "../rustc_span" } -rustc_serialize = { path = "../rustc_serialize" } rustc_middle = { path = "../rustc_middle" } rustc_ast_lowering = { path = "../rustc_ast_lowering" } rustc_ast_passes = { path = "../rustc_ast_passes" } diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs index 60b60edd2c81..2a373ebc1324 100644 --- a/compiler/rustc_interface/src/passes.rs +++ b/compiler/rustc_interface/src/passes.rs @@ -1,9 +1,4 @@ -use crate::errors::{ - CantEmitMIR, EmojiIdentifier, ErrorWritingDependencies, FerrisIdentifier, - GeneratedFileConflictsWithDirectory, InputFileWouldBeOverWritten, MixedBinCrate, - MixedProcMacroCrate, OutDirError, ProcMacroCratePanicAbort, ProcMacroDocWithoutArg, - TempsDirError, -}; +use crate::errors; use crate::interface::{Compiler, Result}; use crate::proc_macro_decls; use crate::util; @@ -374,15 +369,15 @@ pub fn configure_and_expand( if crate_types.len() > 1 { if is_executable_crate { - sess.emit_err(MixedBinCrate); + sess.emit_err(errors::MixedBinCrate); } if is_proc_macro_crate { - sess.emit_err(MixedProcMacroCrate); + sess.emit_err(errors::MixedProcMacroCrate); } } if is_proc_macro_crate && sess.panic_strategy() == PanicStrategy::Abort { - sess.emit_warning(ProcMacroCratePanicAbort); + sess.emit_warning(errors::ProcMacroCratePanicAbort); } // For backwards compatibility, we don't try to run proc macro injection @@ -392,7 +387,7 @@ pub fn configure_and_expand( // However, we do emit a warning, to let such users know that they should // start passing '--crate-type proc-macro' if has_proc_macro_decls && sess.opts.actually_rustdoc && !is_proc_macro_crate { - sess.emit_warning(ProcMacroDocWithoutArg); + sess.emit_warning(errors::ProcMacroDocWithoutArg); } else { krate = sess.time("maybe_create_a_macro_crate", || { let is_test_crate = sess.opts.test; @@ -441,9 +436,9 @@ pub fn configure_and_expand( spans.sort(); if ident == sym::ferris { let first_span = spans[0]; - sess.emit_err(FerrisIdentifier { spans, first_span }); + sess.emit_err(errors::FerrisIdentifier { spans, first_span }); } else { - sess.emit_err(EmojiIdentifier { spans, ident }); + sess.emit_err(errors::EmojiIdentifier { spans, ident }); } } }); @@ -655,7 +650,7 @@ fn write_out_deps( } } Err(error) => { - sess.emit_fatal(ErrorWritingDependencies { path: &deps_filename, error }); + sess.emit_fatal(errors::ErrorWritingDependencies { path: &deps_filename, error }); } } } @@ -676,17 +671,20 @@ fn output_filenames(tcx: TyCtxt<'_>, (): ()) -> Arc { if let Some(ref input_path) = sess.io.input.opt_path() { if sess.opts.will_create_output_file() { if output_contains_path(&output_paths, input_path) { - sess.emit_fatal(InputFileWouldBeOverWritten { path: input_path }); + sess.emit_fatal(errors::InputFileWouldBeOverWritten { path: input_path }); } if let Some(ref dir_path) = output_conflicts_with_dir(&output_paths) { - sess.emit_fatal(GeneratedFileConflictsWithDirectory { input_path, dir_path }); + sess.emit_fatal(errors::GeneratedFileConflictsWithDirectory { + input_path, + dir_path, + }); } } } if let Some(ref dir) = sess.io.temps_dir { if fs::create_dir_all(dir).is_err() { - sess.emit_fatal(TempsDirError); + sess.emit_fatal(errors::TempsDirError); } } @@ -698,7 +696,7 @@ fn output_filenames(tcx: TyCtxt<'_>, (): ()) -> Arc { if !only_dep_info { if let Some(ref dir) = sess.io.output_dir { if fs::create_dir_all(dir).is_err() { - sess.emit_fatal(OutDirError); + sess.emit_fatal(errors::OutDirError); } } } @@ -977,7 +975,7 @@ pub fn start_codegen<'tcx>( if tcx.sess.opts.output_types.contains_key(&OutputType::Mir) { if let Err(error) = rustc_mir_transform::dump_mir::emit_mir(tcx) { - tcx.sess.emit_err(CantEmitMIR { error }); + tcx.sess.emit_err(errors::CantEmitMIR { error }); tcx.sess.abort_if_errors(); } } diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs index 0c1019545f38..2e447b900e11 100644 --- a/compiler/rustc_lint/src/lints.rs +++ b/compiler/rustc_lint/src/lints.rs @@ -1402,6 +1402,21 @@ pub struct UnusedDef<'a, 'b> { pub cx: &'a LateContext<'b>, pub def_id: DefId, pub note: Option, + pub suggestion: Option, +} + +#[derive(Subdiagnostic)] +pub enum UnusedDefSuggestion { + #[suggestion( + suggestion, + style = "verbose", + code = "let _ = ", + applicability = "machine-applicable" + )] + Default { + #[primary_span] + span: Span, + }, } // Needed because of def_path_str @@ -1417,6 +1432,9 @@ impl<'a> DecorateLint<'a, ()> for UnusedDef<'_, '_> { if let Some(note) = self.note { diag.note(note.as_str()); } + if let Some(sugg) = self.suggestion { + diag.subdiagnostic(sugg); + } diag } diff --git a/compiler/rustc_lint/src/unused.rs b/compiler/rustc_lint/src/unused.rs index 4c9b3df2dbd3..88ea293444c1 100644 --- a/compiler/rustc_lint/src/unused.rs +++ b/compiler/rustc_lint/src/unused.rs @@ -1,7 +1,7 @@ use crate::lints::{ PathStatementDrop, PathStatementDropSub, PathStatementNoEffect, UnusedAllocationDiag, - UnusedAllocationMutDiag, UnusedClosure, UnusedDef, UnusedDelim, UnusedDelimSuggestion, - UnusedGenerator, UnusedImportBracesDiag, UnusedOp, UnusedResult, + UnusedAllocationMutDiag, UnusedClosure, UnusedDef, UnusedDefSuggestion, UnusedDelim, + UnusedDelimSuggestion, UnusedGenerator, UnusedImportBracesDiag, UnusedOp, UnusedResult, }; use crate::Lint; use crate::{EarlyContext, EarlyLintPass, LateContext, LateLintPass, LintContext}; @@ -418,6 +418,19 @@ impl<'tcx> LateLintPass<'tcx> for UnusedResults { ); } MustUsePath::Def(span, def_id, reason) => { + let suggestion = if matches!( + cx.tcx.get_diagnostic_name(*def_id), + Some(sym::add) + | Some(sym::sub) + | Some(sym::mul) + | Some(sym::div) + | Some(sym::rem) + | Some(sym::neg), + ) { + Some(UnusedDefSuggestion::Default { span: span.shrink_to_lo() }) + } else { + None + }; cx.emit_spanned_lint( UNUSED_MUST_USE, *span, @@ -427,6 +440,7 @@ impl<'tcx> LateLintPass<'tcx> for UnusedResults { cx, def_id: *def_id, note: *reason, + suggestion, }, ); } @@ -495,6 +509,7 @@ enum UnusedDelimsCtx { ArrayLenExpr, AnonConst, MatchArmExpr, + IndexExpr, } impl From for &'static str { @@ -514,6 +529,7 @@ impl From for &'static str { UnusedDelimsCtx::LetScrutineeExpr => "`let` scrutinee expression", UnusedDelimsCtx::ArrayLenExpr | UnusedDelimsCtx::AnonConst => "const expression", UnusedDelimsCtx::MatchArmExpr => "match arm expression", + UnusedDelimsCtx::IndexExpr => "index expression", } } } @@ -661,6 +677,10 @@ trait UnusedDelimLint { keep_space: (bool, bool), ) { let primary_span = if let Some((lo, hi)) = spans { + if hi.is_empty() { + // do not point at delims that do not exist + return; + } MultiSpan::from(vec![lo, hi]) } else { MultiSpan::from(value_span) @@ -733,6 +753,8 @@ trait UnusedDelimLint { (value, UnusedDelimsCtx::ReturnValue, false, Some(left), None) } + Index(_, ref value) => (value, UnusedDelimsCtx::IndexExpr, false, None, None), + Assign(_, ref value, _) | AssignOp(.., ref value) => { (value, UnusedDelimsCtx::AssignedValue, false, None, None) } diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp index f728bff0e3b9..15a4273fc591 100644 --- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp @@ -21,6 +21,9 @@ #include "llvm/Passes/StandardInstrumentations.h" #include "llvm/Support/CBindingWrapping.h" #include "llvm/Support/FileSystem.h" +#if LLVM_VERSION_GE(17, 0) +#include "llvm/Support/VirtualFileSystem.h" +#endif #include "llvm/Support/Host.h" #if LLVM_VERSION_LT(14, 0) #include "llvm/Support/TargetRegistry.h" @@ -651,21 +654,40 @@ LLVMRustOptimize( Optional PGOOpt; #else std::optional PGOOpt; +#endif +#if LLVM_VERSION_GE(17, 0) + auto FS = vfs::getRealFileSystem(); #endif if (PGOGenPath) { assert(!PGOUsePath && !PGOSampleUsePath); - PGOOpt = PGOOptions(PGOGenPath, "", "", PGOOptions::IRInstr, - PGOOptions::NoCSAction, DebugInfoForProfiling); + PGOOpt = PGOOptions(PGOGenPath, "", "", +#if LLVM_VERSION_GE(17, 0) + FS, +#endif + PGOOptions::IRInstr, PGOOptions::NoCSAction, + DebugInfoForProfiling); } else if (PGOUsePath) { assert(!PGOSampleUsePath); - PGOOpt = PGOOptions(PGOUsePath, "", "", PGOOptions::IRUse, - PGOOptions::NoCSAction, DebugInfoForProfiling); + PGOOpt = PGOOptions(PGOUsePath, "", "", +#if LLVM_VERSION_GE(17, 0) + FS, +#endif + PGOOptions::IRUse, PGOOptions::NoCSAction, + DebugInfoForProfiling); } else if (PGOSampleUsePath) { - PGOOpt = PGOOptions(PGOSampleUsePath, "", "", PGOOptions::SampleUse, - PGOOptions::NoCSAction, DebugInfoForProfiling); + PGOOpt = PGOOptions(PGOSampleUsePath, "", "", +#if LLVM_VERSION_GE(17, 0) + FS, +#endif + PGOOptions::SampleUse, PGOOptions::NoCSAction, + DebugInfoForProfiling); } else if (DebugInfoForProfiling) { - PGOOpt = PGOOptions("", "", "", PGOOptions::NoAction, - PGOOptions::NoCSAction, DebugInfoForProfiling); + PGOOpt = PGOOptions("", "", "", +#if LLVM_VERSION_GE(17, 0) + FS, +#endif + PGOOptions::NoAction, PGOOptions::NoCSAction, + DebugInfoForProfiling); } PassBuilder PB(TM, PTO, PGOOpt, &PIC); diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index 653f2b39d3e7..21652063b471 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -1,10 +1,6 @@ //! Validates all used crates and extern libraries and loads their metadata -use crate::errors::{ - ConflictingAllocErrorHandler, ConflictingGlobalAlloc, CrateNotPanicRuntime, - GlobalAllocRequired, NoMultipleAllocErrorHandler, NoMultipleGlobalAlloc, NoPanicStrategy, - NoTransitiveNeedsDep, NotProfilerRuntime, ProfilerBuiltinsNeedsCore, -}; +use crate::errors; use crate::locator::{CrateError, CrateLocator, CratePaths}; use crate::rmeta::{CrateDep, CrateMetadata, CrateNumMap, CrateRoot, MetadataBlob}; @@ -33,6 +29,7 @@ use rustc_target::spec::{PanicStrategy, TargetTriple}; use proc_macro::bridge::client::ProcMacro; use std::ops::Fn; use std::path::Path; +use std::time::Duration; use std::{cmp, env}; #[derive(Clone)] @@ -689,8 +686,7 @@ impl<'a> CrateLoader<'a> { ) -> Result<&'static [ProcMacro], CrateError> { // Make sure the path contains a / or the linker will search for it. let path = env::current_dir().unwrap().join(path); - let lib = unsafe { libloading::Library::new(path) } - .map_err(|err| CrateError::DlOpen(err.to_string()))?; + let lib = load_dylib(&path, 5).map_err(|err| CrateError::DlOpen(err))?; let sym_name = self.sess.generate_proc_macro_decls_symbol(stable_crate_id); let sym = unsafe { lib.get::<*const &[ProcMacro]>(sym_name.as_bytes()) } @@ -768,10 +764,11 @@ impl<'a> CrateLoader<'a> { // Sanity check the loaded crate to ensure it is indeed a panic runtime // and the panic strategy is indeed what we thought it was. if !data.is_panic_runtime() { - self.sess.emit_err(CrateNotPanicRuntime { crate_name: name }); + self.sess.emit_err(errors::CrateNotPanicRuntime { crate_name: name }); } if data.required_panic_strategy() != Some(desired_strategy) { - self.sess.emit_err(NoPanicStrategy { crate_name: name, strategy: desired_strategy }); + self.sess + .emit_err(errors::NoPanicStrategy { crate_name: name, strategy: desired_strategy }); } self.cstore.injected_panic_runtime = Some(cnum); @@ -791,7 +788,7 @@ impl<'a> CrateLoader<'a> { let name = Symbol::intern(&self.sess.opts.unstable_opts.profiler_runtime); if name == sym::profiler_builtins && self.sess.contains_name(&krate.attrs, sym::no_core) { - self.sess.emit_err(ProfilerBuiltinsNeedsCore); + self.sess.emit_err(errors::ProfilerBuiltinsNeedsCore); } let Some(cnum) = self.resolve_crate(name, DUMMY_SP, CrateDepKind::Implicit) else { return; }; @@ -799,21 +796,22 @@ impl<'a> CrateLoader<'a> { // Sanity check the loaded crate to ensure it is indeed a profiler runtime if !data.is_profiler_runtime() { - self.sess.emit_err(NotProfilerRuntime { crate_name: name }); + self.sess.emit_err(errors::NotProfilerRuntime { crate_name: name }); } } fn inject_allocator_crate(&mut self, krate: &ast::Crate) { self.cstore.has_global_allocator = match &*global_allocator_spans(&self.sess, krate) { [span1, span2, ..] => { - self.sess.emit_err(NoMultipleGlobalAlloc { span2: *span2, span1: *span1 }); + self.sess.emit_err(errors::NoMultipleGlobalAlloc { span2: *span2, span1: *span1 }); true } spans => !spans.is_empty(), }; self.cstore.has_alloc_error_handler = match &*alloc_error_handler_spans(&self.sess, krate) { [span1, span2, ..] => { - self.sess.emit_err(NoMultipleAllocErrorHandler { span2: *span2, span1: *span1 }); + self.sess + .emit_err(errors::NoMultipleAllocErrorHandler { span2: *span2, span1: *span1 }); true } spans => !spans.is_empty(), @@ -849,7 +847,7 @@ impl<'a> CrateLoader<'a> { if data.has_global_allocator() { match global_allocator { Some(other_crate) => { - self.sess.emit_err(ConflictingGlobalAlloc { + self.sess.emit_err(errors::ConflictingGlobalAlloc { crate_name: data.name(), other_crate_name: other_crate, }); @@ -864,7 +862,7 @@ impl<'a> CrateLoader<'a> { if data.has_alloc_error_handler() { match alloc_error_handler { Some(other_crate) => { - self.sess.emit_err(ConflictingAllocErrorHandler { + self.sess.emit_err(errors::ConflictingAllocErrorHandler { crate_name: data.name(), other_crate_name: other_crate, }); @@ -884,7 +882,7 @@ impl<'a> CrateLoader<'a> { if !self.sess.contains_name(&krate.attrs, sym::default_lib_allocator) && !self.cstore.iter_crate_data().any(|(_, data)| data.has_default_lib_allocator()) { - self.sess.emit_err(GlobalAllocRequired); + self.sess.emit_err(errors::GlobalAllocRequired); } self.cstore.allocator_kind = Some(AllocatorKind::Default); } @@ -917,7 +915,7 @@ impl<'a> CrateLoader<'a> { for dep in self.cstore.crate_dependencies_in_reverse_postorder(krate) { let data = self.cstore.get_crate_data(dep); if needs_dep(&data) { - self.sess.emit_err(NoTransitiveNeedsDep { + self.sess.emit_err(errors::NoTransitiveNeedsDep { crate_name: self.cstore.get_crate_data(krate).name(), needs_crate_name: what, deps_crate_name: data.name(), @@ -1093,3 +1091,41 @@ fn alloc_error_handler_spans(sess: &Session, krate: &ast::Crate) -> Vec { visit::walk_crate(&mut f, krate); f.spans } + +// On Windows the compiler would sometimes intermittently fail to open the +// proc-macro DLL with `Error::LoadLibraryExW`. It is suspected that something in the +// system still holds a lock on the file, so we retry a few times before calling it +// an error. +fn load_dylib(path: &Path, max_attempts: usize) -> Result { + assert!(max_attempts > 0); + + let mut last_error = None; + + for attempt in 0..max_attempts { + match unsafe { libloading::Library::new(&path) } { + Ok(lib) => { + if attempt > 0 { + debug!( + "Loaded proc-macro `{}` after {} attempts.", + path.display(), + attempt + 1 + ); + } + return Ok(lib); + } + Err(err) => { + // Only try to recover from this specific error. + if !matches!(err, libloading::Error::LoadLibraryExW { .. }) { + return Err(err.to_string()); + } + + last_error = Some(err); + std::thread::sleep(Duration::from_millis(100)); + debug!("Failed to load proc-macro `{}`. Retrying.", path.display()); + } + } + } + + debug!("Failed to load proc-macro `{}` even after {} attempts.", path.display(), max_attempts); + Err(format!("{} (retried {} times)", last_error.unwrap(), max_attempts)) +} diff --git a/compiler/rustc_metadata/src/locator.rs b/compiler/rustc_metadata/src/locator.rs index 0f5f74007c10..74f91a14ea9a 100644 --- a/compiler/rustc_metadata/src/locator.rs +++ b/compiler/rustc_metadata/src/locator.rs @@ -213,12 +213,7 @@ //! metadata::locator or metadata::creader for all the juicy details! use crate::creader::Library; -use crate::errors::{ - CannotFindCrate, CrateLocationUnknownType, DlError, ExternLocationNotExist, - ExternLocationNotFile, FoundStaticlib, IncompatibleRustc, InvalidMetadataFiles, - LibFilenameForm, MultipleCandidates, NewerCrateVersion, NoCrateWithTriple, NoDylibPlugin, - NonAsciiName, StableCrateIdCollision, SymbolConflictsCurrent, SymbolConflictsOthers, -}; +use crate::errors; use crate::rmeta::{rustc_version, MetadataBlob, METADATA_HEADER}; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; @@ -980,28 +975,28 @@ impl CrateError { pub(crate) fn report(self, sess: &Session, span: Span, missing_core: bool) { match self { CrateError::NonAsciiName(crate_name) => { - sess.emit_err(NonAsciiName { span, crate_name }); + sess.emit_err(errors::NonAsciiName { span, crate_name }); } CrateError::ExternLocationNotExist(crate_name, loc) => { - sess.emit_err(ExternLocationNotExist { span, crate_name, location: &loc }); + sess.emit_err(errors::ExternLocationNotExist { span, crate_name, location: &loc }); } CrateError::ExternLocationNotFile(crate_name, loc) => { - sess.emit_err(ExternLocationNotFile { span, crate_name, location: &loc }); + sess.emit_err(errors::ExternLocationNotFile { span, crate_name, location: &loc }); } CrateError::MultipleCandidates(crate_name, flavor, candidates) => { - sess.emit_err(MultipleCandidates { span, crate_name, flavor, candidates }); + sess.emit_err(errors::MultipleCandidates { span, crate_name, flavor, candidates }); } CrateError::SymbolConflictsCurrent(root_name) => { - sess.emit_err(SymbolConflictsCurrent { span, crate_name: root_name }); + sess.emit_err(errors::SymbolConflictsCurrent { span, crate_name: root_name }); } CrateError::SymbolConflictsOthers(root_name) => { - sess.emit_err(SymbolConflictsOthers { span, crate_name: root_name }); + sess.emit_err(errors::SymbolConflictsOthers { span, crate_name: root_name }); } CrateError::StableCrateIdCollision(crate_name0, crate_name1) => { - sess.emit_err(StableCrateIdCollision { span, crate_name0, crate_name1 }); + sess.emit_err(errors::StableCrateIdCollision { span, crate_name0, crate_name1 }); } CrateError::DlOpen(s) | CrateError::DlSym(s) => { - sess.emit_err(DlError { span, err: s }); + sess.emit_err(errors::DlError { span, err: s }); } CrateError::LocatorCombined(locator) => { let crate_name = locator.crate_name; @@ -1012,8 +1007,12 @@ impl CrateError { if !locator.crate_rejections.via_filename.is_empty() { let mismatches = locator.crate_rejections.via_filename.iter(); for CrateMismatch { path, .. } in mismatches { - sess.emit_err(CrateLocationUnknownType { span, path: &path, crate_name }); - sess.emit_err(LibFilenameForm { + sess.emit_err(errors::CrateLocationUnknownType { + span, + path: &path, + crate_name, + }); + sess.emit_err(errors::LibFilenameForm { span, dll_prefix: &locator.dll_prefix, dll_suffix: &locator.dll_suffix, @@ -1039,7 +1038,7 @@ impl CrateError { )); } } - sess.emit_err(NewerCrateVersion { + sess.emit_err(errors::NewerCrateVersion { span, crate_name: crate_name, add_info, @@ -1055,7 +1054,7 @@ impl CrateError { path.display(), )); } - sess.emit_err(NoCrateWithTriple { + sess.emit_err(errors::NoCrateWithTriple { span, crate_name, locator_triple: locator.triple.triple(), @@ -1071,7 +1070,12 @@ impl CrateError { path.display() )); } - sess.emit_err(FoundStaticlib { span, crate_name, add_info, found_crates }); + sess.emit_err(errors::FoundStaticlib { + span, + crate_name, + add_info, + found_crates, + }); } else if !locator.crate_rejections.via_version.is_empty() { let mismatches = locator.crate_rejections.via_version.iter(); for CrateMismatch { path, got } in mismatches { @@ -1082,7 +1086,7 @@ impl CrateError { path.display(), )); } - sess.emit_err(IncompatibleRustc { + sess.emit_err(errors::IncompatibleRustc { span, crate_name, add_info, @@ -1094,14 +1098,14 @@ impl CrateError { for CrateMismatch { path: _, got } in locator.crate_rejections.via_invalid { crate_rejections.push(got); } - sess.emit_err(InvalidMetadataFiles { + sess.emit_err(errors::InvalidMetadataFiles { span, crate_name, add_info, crate_rejections, }); } else { - sess.emit_err(CannotFindCrate { + sess.emit_err(errors::CannotFindCrate { span, crate_name, add_info, @@ -1118,7 +1122,7 @@ impl CrateError { } } CrateError::NonDylibPlugin(crate_name) => { - sess.emit_err(NoDylibPlugin { span, crate_name }); + sess.emit_err(errors::NoDylibPlugin { span, crate_name }); } } } diff --git a/compiler/rustc_metadata/src/native_libs.rs b/compiler/rustc_metadata/src/native_libs.rs index a5910100786e..a8514c69d1c5 100644 --- a/compiler/rustc_metadata/src/native_libs.rs +++ b/compiler/rustc_metadata/src/native_libs.rs @@ -13,17 +13,7 @@ use rustc_session::Session; use rustc_span::symbol::{sym, Symbol}; use rustc_target::spec::abi::Abi; -use crate::errors::{ - AsNeededCompatibility, BundleNeedsStatic, EmptyLinkName, EmptyRenamingTarget, - FrameworkOnlyWindows, ImportNameTypeForm, ImportNameTypeRaw, ImportNameTypeX86, - IncompatibleWasmLink, InvalidLinkModifier, LibFrameworkApple, LinkCfgForm, - LinkCfgSinglePredicate, LinkFrameworkApple, LinkKindForm, LinkModifiersForm, LinkNameForm, - LinkOrdinalRawDylib, LinkRequiresName, MissingNativeLibrary, MultipleCfgs, - MultipleImportNameType, MultipleKindsInLink, MultipleLinkModifiers, MultipleModifiers, - MultipleNamesInLink, MultipleRenamings, MultipleWasmImport, NoLinkModOverride, RawDylibNoNul, - RenamingNoLink, UnexpectedLinkArg, UnknownImportNameType, UnknownLinkKind, UnknownLinkModifier, - UnsupportedAbi, UnsupportedAbiI686, WasmImportForm, WholeArchiveNeedsStatic, -}; +use crate::errors; use std::path::PathBuf; @@ -52,27 +42,28 @@ pub fn find_native_static_library( } } - sess.emit_fatal(MissingNativeLibrary::new(name, verbatim)); + sess.emit_fatal(errors::MissingNativeLibrary::new(name, verbatim)); } fn find_bundled_library( name: Option, verbatim: Option, kind: NativeLibKind, + has_cfg: bool, sess: &Session, ) -> Option { - if sess.opts.unstable_opts.packed_bundled_libs && - sess.crate_types().iter().any(|ct| ct == &CrateType::Rlib || ct == &CrateType::Staticlib) && - let NativeLibKind::Static { bundle: Some(true) | None, .. } = kind { - find_native_static_library( - name.unwrap().as_str(), - verbatim.unwrap_or(false), - &sess.target_filesearch(PathKind::Native).search_path_dirs(), - sess, - ).file_name().and_then(|s| s.to_str()).map(Symbol::intern) - } else { - None + if let NativeLibKind::Static { bundle: Some(true) | None, whole_archive } = kind + && sess.crate_types().iter().any(|t| matches!(t, &CrateType::Rlib | CrateType::Staticlib)) + && (sess.opts.unstable_opts.packed_bundled_libs || has_cfg || whole_archive == Some(true)) + { + let verbatim = verbatim.unwrap_or(false); + let search_paths = &sess.target_filesearch(PathKind::Native).search_path_dirs(); + return find_native_static_library(name.unwrap().as_str(), verbatim, search_paths, sess) + .file_name() + .and_then(|s| s.to_str()) + .map(Symbol::intern); } + None } pub(crate) fn collect(tcx: TyCtxt<'_>) -> Vec { @@ -129,26 +120,26 @@ impl<'tcx> Collector<'tcx> { match item.name_or_empty() { sym::name => { if name.is_some() { - sess.emit_err(MultipleNamesInLink { span: item.span() }); + sess.emit_err(errors::MultipleNamesInLink { span: item.span() }); continue; } let Some(link_name) = item.value_str() else { - sess.emit_err(LinkNameForm { span: item.span() }); + sess.emit_err(errors::LinkNameForm { span: item.span() }); continue; }; let span = item.name_value_literal_span().unwrap(); if link_name.is_empty() { - sess.emit_err(EmptyLinkName { span }); + sess.emit_err(errors::EmptyLinkName { span }); } name = Some((link_name, span)); } sym::kind => { if kind.is_some() { - sess.emit_err(MultipleKindsInLink { span: item.span() }); + sess.emit_err(errors::MultipleKindsInLink { span: item.span() }); continue; } let Some(link_kind) = item.value_str() else { - sess.emit_err(LinkKindForm { span: item.span() }); + sess.emit_err(errors::LinkKindForm { span: item.span() }); continue; }; @@ -158,13 +149,13 @@ impl<'tcx> Collector<'tcx> { "dylib" => NativeLibKind::Dylib { as_needed: None }, "framework" => { if !sess.target.is_like_osx { - sess.emit_err(LinkFrameworkApple { span }); + sess.emit_err(errors::LinkFrameworkApple { span }); } NativeLibKind::Framework { as_needed: None } } "raw-dylib" => { if !sess.target.is_like_windows { - sess.emit_err(FrameworkOnlyWindows { span }); + sess.emit_err(errors::FrameworkOnlyWindows { span }); } else if !features.raw_dylib && sess.target.arch == "x86" { feature_err( &sess.parse_sess, @@ -177,7 +168,7 @@ impl<'tcx> Collector<'tcx> { NativeLibKind::RawDylib } kind => { - sess.emit_err(UnknownLinkKind { span, kind }); + sess.emit_err(errors::UnknownLinkKind { span, kind }); continue; } }; @@ -185,26 +176,26 @@ impl<'tcx> Collector<'tcx> { } sym::modifiers => { if modifiers.is_some() { - sess.emit_err(MultipleLinkModifiers { span: item.span() }); + sess.emit_err(errors::MultipleLinkModifiers { span: item.span() }); continue; } let Some(link_modifiers) = item.value_str() else { - sess.emit_err(LinkModifiersForm { span: item.span() }); + sess.emit_err(errors::LinkModifiersForm { span: item.span() }); continue; }; modifiers = Some((link_modifiers, item.name_value_literal_span().unwrap())); } sym::cfg => { if cfg.is_some() { - sess.emit_err(MultipleCfgs { span: item.span() }); + sess.emit_err(errors::MultipleCfgs { span: item.span() }); continue; } let Some(link_cfg) = item.meta_item_list() else { - sess.emit_err(LinkCfgForm { span: item.span() }); + sess.emit_err(errors::LinkCfgForm { span: item.span() }); continue; }; let [NestedMetaItem::MetaItem(link_cfg)] = link_cfg else { - sess.emit_err(LinkCfgSinglePredicate { span: item.span() }); + sess.emit_err(errors::LinkCfgSinglePredicate { span: item.span() }); continue; }; if !features.link_cfg { @@ -220,26 +211,26 @@ impl<'tcx> Collector<'tcx> { } sym::wasm_import_module => { if wasm_import_module.is_some() { - sess.emit_err(MultipleWasmImport { span: item.span() }); + sess.emit_err(errors::MultipleWasmImport { span: item.span() }); continue; } let Some(link_wasm_import_module) = item.value_str() else { - sess.emit_err(WasmImportForm { span: item.span() }); + sess.emit_err(errors::WasmImportForm { span: item.span() }); continue; }; wasm_import_module = Some((link_wasm_import_module, item.span())); } sym::import_name_type => { if import_name_type.is_some() { - sess.emit_err(MultipleImportNameType { span: item.span() }); + sess.emit_err(errors::MultipleImportNameType { span: item.span() }); continue; } let Some(link_import_name_type) = item.value_str() else { - sess.emit_err(ImportNameTypeForm { span: item.span() }); + sess.emit_err(errors::ImportNameTypeForm { span: item.span() }); continue; }; if self.tcx.sess.target.arch != "x86" { - sess.emit_err(ImportNameTypeX86 { span: item.span() }); + sess.emit_err(errors::ImportNameTypeX86 { span: item.span() }); continue; } @@ -248,7 +239,7 @@ impl<'tcx> Collector<'tcx> { "noprefix" => PeImportNameType::NoPrefix, "undecorated" => PeImportNameType::Undecorated, import_name_type => { - sess.emit_err(UnknownImportNameType { + sess.emit_err(errors::UnknownImportNameType { span: item.span(), import_name_type, }); @@ -268,7 +259,7 @@ impl<'tcx> Collector<'tcx> { import_name_type = Some((link_import_name_type, item.span())); } _ => { - sess.emit_err(UnexpectedLinkArg { span: item.span() }); + sess.emit_err(errors::UnexpectedLinkArg { span: item.span() }); } } } @@ -280,7 +271,7 @@ impl<'tcx> Collector<'tcx> { let (modifier, value) = match modifier.strip_prefix(&['+', '-']) { Some(m) => (m, modifier.starts_with('+')), None => { - sess.emit_err(InvalidLinkModifier { span }); + sess.emit_err(errors::InvalidLinkModifier { span }); continue; } }; @@ -298,7 +289,7 @@ impl<'tcx> Collector<'tcx> { } let assign_modifier = |dst: &mut Option| { if dst.is_some() { - sess.emit_err(MultipleModifiers { span, modifier }); + sess.emit_err(errors::MultipleModifiers { span, modifier }); } else { *dst = Some(value); } @@ -308,7 +299,7 @@ impl<'tcx> Collector<'tcx> { assign_modifier(bundle) } ("bundle", _) => { - sess.emit_err(BundleNeedsStatic { span }); + sess.emit_err(errors::BundleNeedsStatic { span }); } ("verbatim", _) => assign_modifier(&mut verbatim), @@ -317,7 +308,7 @@ impl<'tcx> Collector<'tcx> { assign_modifier(whole_archive) } ("whole-archive", _) => { - sess.emit_err(WholeArchiveNeedsStatic { span }); + sess.emit_err(errors::WholeArchiveNeedsStatic { span }); } ("as-needed", Some(NativeLibKind::Dylib { as_needed })) @@ -326,11 +317,11 @@ impl<'tcx> Collector<'tcx> { assign_modifier(as_needed) } ("as-needed", _) => { - sess.emit_err(AsNeededCompatibility { span }); + sess.emit_err(errors::AsNeededCompatibility { span }); } _ => { - sess.emit_err(UnknownLinkModifier { span, modifier }); + sess.emit_err(errors::UnknownLinkModifier { span, modifier }); } } } @@ -338,23 +329,23 @@ impl<'tcx> Collector<'tcx> { if let Some((_, span)) = wasm_import_module { if name.is_some() || kind.is_some() || modifiers.is_some() || cfg.is_some() { - sess.emit_err(IncompatibleWasmLink { span }); + sess.emit_err(errors::IncompatibleWasmLink { span }); } } else if name.is_none() { - sess.emit_err(LinkRequiresName { span: m.span }); + sess.emit_err(errors::LinkRequiresName { span: m.span }); } // Do this outside of the loop so that `import_name_type` can be specified before `kind`. if let Some((_, span)) = import_name_type { if kind != Some(NativeLibKind::RawDylib) { - sess.emit_err(ImportNameTypeRaw { span }); + sess.emit_err(errors::ImportNameTypeRaw { span }); } } let dll_imports = match kind { Some(NativeLibKind::RawDylib) => { if let Some((name, span)) = name && name.as_str().contains('\0') { - sess.emit_err(RawDylibNoNul { span }); + sess.emit_err(errors::RawDylibNoNul { span }); } foreign_mod_items .iter() @@ -383,7 +374,9 @@ impl<'tcx> Collector<'tcx> { .iter() .find(|a| a.has_name(sym::link_ordinal)) .unwrap(); - sess.emit_err(LinkOrdinalRawDylib { span: link_ordinal_attr.span }); + sess.emit_err(errors::LinkOrdinalRawDylib { + span: link_ordinal_attr.span, + }); } } @@ -393,7 +386,7 @@ impl<'tcx> Collector<'tcx> { let name = name.map(|(name, _)| name); let kind = kind.unwrap_or(NativeLibKind::Unspecified); - let filename = find_bundled_library(name, verbatim, kind, sess); + let filename = find_bundled_library(name, verbatim, kind, cfg.is_some(), sess); self.libs.push(NativeLib { name, filename, @@ -414,7 +407,7 @@ impl<'tcx> Collector<'tcx> { for lib in &self.tcx.sess.opts.libs { if let NativeLibKind::Framework { .. } = lib.kind && !self.tcx.sess.target.is_like_osx { // Cannot check this when parsing options because the target is not yet available. - self.tcx.sess.emit_err(LibFrameworkApple); + self.tcx.sess.emit_err(errors::LibFrameworkApple); } if let Some(ref new_name) = lib.new_name { let any_duplicate = self @@ -423,11 +416,11 @@ impl<'tcx> Collector<'tcx> { .filter_map(|lib| lib.name.as_ref()) .any(|n| n.as_str() == lib.name); if new_name.is_empty() { - self.tcx.sess.emit_err(EmptyRenamingTarget { lib_name: &lib.name }); + self.tcx.sess.emit_err(errors::EmptyRenamingTarget { lib_name: &lib.name }); } else if !any_duplicate { - self.tcx.sess.emit_err(RenamingNoLink { lib_name: &lib.name }); + self.tcx.sess.emit_err(errors::RenamingNoLink { lib_name: &lib.name }); } else if !renames.insert(&lib.name) { - self.tcx.sess.emit_err(MultipleRenamings { lib_name: &lib.name }); + self.tcx.sess.emit_err(errors::MultipleRenamings { lib_name: &lib.name }); } } } @@ -453,12 +446,15 @@ impl<'tcx> Collector<'tcx> { // explicit `:rename` in particular. if lib.has_modifiers() || passed_lib.has_modifiers() { match lib.foreign_module { - Some(def_id) => self.tcx.sess.emit_err(NoLinkModOverride { - span: Some(self.tcx.def_span(def_id)), - }), - None => { - self.tcx.sess.emit_err(NoLinkModOverride { span: None }) + Some(def_id) => { + self.tcx.sess.emit_err(errors::NoLinkModOverride { + span: Some(self.tcx.def_span(def_id)), + }) } + None => self + .tcx + .sess + .emit_err(errors::NoLinkModOverride { span: None }), }; } if passed_lib.kind != NativeLibKind::Unspecified { @@ -480,7 +476,7 @@ impl<'tcx> Collector<'tcx> { let name = Some(Symbol::intern(new_name.unwrap_or(&passed_lib.name))); let sess = self.tcx.sess; let filename = - find_bundled_library(name, passed_lib.verbatim, passed_lib.kind, sess); + find_bundled_library(name, passed_lib.verbatim, passed_lib.kind, false, sess); self.libs.push(NativeLib { name, filename, @@ -542,14 +538,14 @@ impl<'tcx> Collector<'tcx> { DllCallingConvention::Vectorcall(self.i686_arg_list_size(item)) } _ => { - self.tcx.sess.emit_fatal(UnsupportedAbiI686 { span: item.span }); + self.tcx.sess.emit_fatal(errors::UnsupportedAbiI686 { span: item.span }); } } } else { match abi { Abi::C { .. } | Abi::Win64 { .. } | Abi::System { .. } => DllCallingConvention::C, _ => { - self.tcx.sess.emit_fatal(UnsupportedAbi { span: item.span }); + self.tcx.sess.emit_fatal(errors::UnsupportedAbi { span: item.span }); } } }; diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs index bb2dd290c6d5..e2b07fad6e78 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder.rs @@ -654,7 +654,7 @@ impl<'a, 'tcx, T> Decodable> for LazyValue { impl<'a, 'tcx, T> Decodable> for LazyArray { fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Self { let len = decoder.read_usize(); - if len == 0 { LazyArray::empty() } else { decoder.read_lazy_array(len) } + if len == 0 { LazyArray::default() } else { decoder.read_lazy_array(len) } } } @@ -864,7 +864,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { .tables .children .get(self, index) - .unwrap_or_else(LazyArray::empty) + .expect("fields are not encoded for a variant") .decode(self) .map(|index| ty::FieldDef { did: self.local_def_id(index), @@ -896,7 +896,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { .tables .children .get(self, item_id) - .unwrap_or_else(LazyArray::empty) + .expect("variants are not encoded for an enum") .decode(self) .filter_map(|index| { let kind = self.def_kind(index); @@ -1045,7 +1045,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { .tables .fn_arg_names .get(self, id) - .unwrap_or_else(LazyArray::empty) + .expect("argument names not encoded for a function") .decode((self, sess)) .nth(0) .map_or(false, |ident| ident.name == kw::SelfLower) @@ -1060,7 +1060,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { .tables .children .get(self, id) - .unwrap_or_else(LazyArray::empty) + .expect("associated items not encoded for an item") .decode((self, sess)) .map(move |child_index| self.local_def_id(child_index)) } @@ -1068,13 +1068,12 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { fn get_associated_item(self, id: DefIndex, sess: &'a Session) -> ty::AssocItem { let name = self.item_name(id); - let kind = match self.def_kind(id) { - DefKind::AssocConst => ty::AssocKind::Const, - DefKind::AssocFn => ty::AssocKind::Fn, - DefKind::AssocTy => ty::AssocKind::Type, + let (kind, has_self) = match self.def_kind(id) { + DefKind::AssocConst => (ty::AssocKind::Const, false), + DefKind::AssocFn => (ty::AssocKind::Fn, self.get_fn_has_self_parameter(id, sess)), + DefKind::AssocTy => (ty::AssocKind::Type, false), _ => bug!("cannot get associated-item of `{:?}`", self.def_key(id)), }; - let has_self = self.get_fn_has_self_parameter(id, sess); let container = self.root.tables.assoc_container.get(self, id).unwrap(); ty::AssocItem { @@ -1131,7 +1130,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { .tables .children .get(self, id) - .unwrap_or_else(LazyArray::empty) + .expect("fields not encoded for a struct") .decode(self) .map(move |index| respan(self.get_span(index, sess), self.item_name(index))) } @@ -1144,7 +1143,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { .tables .children .get(self, id) - .unwrap_or_else(LazyArray::empty) + .expect("fields not encoded for a struct") .decode(self) .map(move |field_index| self.get_visibility(field_index)) } @@ -1159,7 +1158,6 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { .tables .inherent_impls .get(self, id) - .unwrap_or_else(LazyArray::empty) .decode(self) .map(|index| self.local_def_id(index)), ) @@ -1174,7 +1172,6 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { .tables .inherent_impls .get(self, ty_index) - .unwrap_or_else(LazyArray::empty) .decode(self) .map(move |impl_index| (ty_def_id, self.local_def_id(impl_index))) }) @@ -1322,7 +1319,7 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { ) -> DefPathHash { *def_path_hashes .entry(index) - .or_insert_with(|| self.root.tables.def_path_hashes.get(self, index).unwrap()) + .or_insert_with(|| self.root.tables.def_path_hashes.get(self, index)) } #[inline] diff --git a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs index 9b1401f4a44d..07cc84ab9536 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs @@ -1,6 +1,7 @@ use crate::creader::{CStore, LoadedMacro}; use crate::foreign_modules; use crate::native_libs; +use crate::rmeta::table::IsDefault; use crate::rmeta::AttrFlags; use rustc_ast as ast; @@ -88,6 +89,14 @@ macro_rules! provide_one { } } }; + ($tcx:ident, $def_id:ident, $other:ident, $cdata:ident, $name:ident => { table_defaulted_array }) => { + provide_one! { + $tcx, $def_id, $other, $cdata, $name => { + let lazy = $cdata.root.tables.$name.get($cdata, $def_id.index); + if lazy.is_default() { &[] } else { $tcx.arena.alloc_from_iter(lazy.decode(($cdata, $tcx))) } + } + } + }; ($tcx:ident, $def_id:ident, $other:ident, $cdata:ident, $name:ident => { table_direct }) => { provide_one! { $tcx, $def_id, $other, $cdata, $name => { @@ -187,10 +196,10 @@ impl IntoArgs for (CrateNum, SimplifiedType) { } provide! { tcx, def_id, other, cdata, - explicit_item_bounds => { table } + explicit_item_bounds => { table_defaulted_array } explicit_predicates_of => { table } generics_of => { table } - inferred_outlives_of => { table } + inferred_outlives_of => { table_defaulted_array } super_predicates_of => { table } type_of => { table } variances_of => { table } diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs index 9d8f14058f68..85e9ae9a9830 100644 --- a/compiler/rustc_metadata/src/rmeta/encoder.rs +++ b/compiler/rustc_metadata/src/rmeta/encoder.rs @@ -76,13 +76,13 @@ pub(super) struct EncodeContext<'a, 'tcx> { symbol_table: FxHashMap, } -/// If the current crate is a proc-macro, returns early with `LazyArray::empty()`. +/// If the current crate is a proc-macro, returns early with `LazyArray::default()`. /// This is useful for skipping the encoding of things that aren't needed /// for proc-macro crates. macro_rules! empty_proc_macro { ($self:ident) => { if $self.is_proc_macro { - return LazyArray::empty(); + return LazyArray::default(); } }; } @@ -365,21 +365,31 @@ impl<'a, 'tcx> TyEncoder for EncodeContext<'a, 'tcx> { } } -// Shorthand for `$self.$tables.$table.set($def_id.index, $self.lazy_value($value))`, which would +// Shorthand for `$self.$tables.$table.set_some($def_id.index, $self.lazy_value($value))`, which would // normally need extra variables to avoid errors about multiple mutable borrows. macro_rules! record { ($self:ident.$tables:ident.$table:ident[$def_id:expr] <- $value:expr) => {{ { let value = $value; let lazy = $self.lazy(value); - $self.$tables.$table.set($def_id.index, lazy); + $self.$tables.$table.set_some($def_id.index, lazy); } }}; } -// Shorthand for `$self.$tables.$table.set($def_id.index, $self.lazy_value($value))`, which would +// Shorthand for `$self.$tables.$table.set_some($def_id.index, $self.lazy_value($value))`, which would // normally need extra variables to avoid errors about multiple mutable borrows. macro_rules! record_array { + ($self:ident.$tables:ident.$table:ident[$def_id:expr] <- $value:expr) => {{ + { + let value = $value; + let lazy = $self.lazy_array(value); + $self.$tables.$table.set_some($def_id.index, lazy); + } + }}; +} + +macro_rules! record_defaulted_array { ($self:ident.$tables:ident.$table:ident[$def_id:expr] <- $value:expr) => {{ { let value = $value; @@ -467,13 +477,13 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { { let def_key = self.lazy(table.def_key(def_index)); let def_path_hash = table.def_path_hash(def_index); - self.tables.def_keys.set(def_index, def_key); + self.tables.def_keys.set_some(def_index, def_key); self.tables.def_path_hashes.set(def_index, def_path_hash); } } else { for (def_index, def_key, def_path_hash) in table.enumerated_keys_and_path_hashes() { let def_key = self.lazy(def_key); - self.tables.def_keys.set(def_index, def_key); + self.tables.def_keys.set_some(def_index, def_key); self.tables.def_path_hashes.set(def_index, *def_path_hash); } } @@ -548,7 +558,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { let on_disk_index: u32 = on_disk_index.try_into().expect("cannot export more than U32_MAX files"); - adapted.set(on_disk_index, self.lazy(source_file)); + adapted.set_some(on_disk_index, self.lazy(source_file)); } adapted.encode(&mut self.opaque) @@ -1147,9 +1157,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { if state.is_doc_hidden { attr_flags |= AttrFlags::IS_DOC_HIDDEN; } - if !attr_flags.is_empty() { - self.tables.attr_flags.set_nullable(def_id.local_def_index, attr_flags); - } + self.tables.attr_flags.set(def_id.local_def_index, attr_flags); } fn encode_def_ids(&mut self) { @@ -1161,7 +1169,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { let def_id = local_id.to_def_id(); let def_kind = tcx.opt_def_kind(local_id); let Some(def_kind) = def_kind else { continue }; - self.tables.opt_def_kind.set(def_id.index, def_kind); + self.tables.opt_def_kind.set_some(def_id.index, def_kind); let def_span = tcx.def_span(local_id); record!(self.tables.def_span[def_id] <- def_span); self.encode_attrs(local_id); @@ -1192,9 +1200,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { record!(self.tables.generics_of[def_id] <- g); record!(self.tables.explicit_predicates_of[def_id] <- self.tcx.explicit_predicates_of(def_id)); let inferred_outlives = self.tcx.inferred_outlives_of(def_id); - if !inferred_outlives.is_empty() { - record_array!(self.tables.inferred_outlives_of[def_id] <- inferred_outlives); - } + record_defaulted_array!(self.tables.inferred_outlives_of[def_id] <- inferred_outlives); } if should_encode_type(tcx, local_id, def_kind) { record!(self.tables.type_of[def_id] <- self.tcx.type_of(def_id)); @@ -1215,15 +1221,12 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { record!(self.tables.trait_impl_trait_tys[def_id] <- table); } } + let inherent_impls = tcx.with_stable_hashing_context(|hcx| { tcx.crate_inherent_impls(()).inherent_impls.to_sorted(&hcx, true) }); - - for (def_id, implementations) in inherent_impls { - if implementations.is_empty() { - continue; - } - record_array!(self.tables.inherent_impls[def_id.to_def_id()] <- implementations.iter().map(|&def_id| { + for (def_id, impls) in inherent_impls { + record_defaulted_array!(self.tables.inherent_impls[def_id.to_def_id()] <- impls.iter().map(|def_id| { assert!(def_id.is_local()); def_id.index })); @@ -1264,14 +1267,14 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { }; record!(self.tables.variant_data[variant.def_id] <- data); - self.tables.constness.set(variant.def_id.index, hir::Constness::Const); + self.tables.constness.set_some(variant.def_id.index, hir::Constness::Const); record_array!(self.tables.children[variant.def_id] <- variant.fields.iter().map(|f| { assert!(f.did.is_local()); f.did.index })); if let Some((CtorKind::Fn, ctor_def_id)) = variant.ctor { - self.tables.constness.set(ctor_def_id.index, hir::Constness::Const); + self.tables.constness.set_some(ctor_def_id.index, hir::Constness::Const); let fn_sig = tcx.fn_sig(ctor_def_id); record!(self.tables.fn_sig[ctor_def_id] <- fn_sig); // FIXME only encode signature for ctor_def_id @@ -1332,9 +1335,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { fn encode_explicit_item_bounds(&mut self, def_id: DefId) { debug!("EncodeContext::encode_explicit_item_bounds({:?})", def_id); let bounds = self.tcx.explicit_item_bounds(def_id); - if !bounds.is_empty() { - record_array!(self.tables.explicit_item_bounds[def_id] <- bounds); - } + record_defaulted_array!(self.tables.explicit_item_bounds[def_id] <- bounds); } fn encode_info_for_trait_item(&mut self, def_id: DefId) { @@ -1342,16 +1343,16 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { let tcx = self.tcx; let impl_defaultness = tcx.impl_defaultness(def_id.expect_local()); - self.tables.impl_defaultness.set(def_id.index, impl_defaultness); + self.tables.impl_defaultness.set_some(def_id.index, impl_defaultness); let trait_item = tcx.associated_item(def_id); - self.tables.assoc_container.set(def_id.index, trait_item.container); + self.tables.assoc_container.set_some(def_id.index, trait_item.container); match trait_item.kind { ty::AssocKind::Const => {} ty::AssocKind::Fn => { record_array!(self.tables.fn_arg_names[def_id] <- tcx.fn_arg_names(def_id)); - self.tables.asyncness.set(def_id.index, tcx.asyncness(def_id)); - self.tables.constness.set(def_id.index, hir::Constness::NotConst); + self.tables.asyncness.set_some(def_id.index, tcx.asyncness(def_id)); + self.tables.constness.set_some(def_id.index, hir::Constness::NotConst); } ty::AssocKind::Type => { self.encode_explicit_item_bounds(def_id); @@ -1367,14 +1368,14 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { let tcx = self.tcx; let ast_item = self.tcx.hir().expect_impl_item(def_id.expect_local()); - self.tables.impl_defaultness.set(def_id.index, ast_item.defaultness); + self.tables.impl_defaultness.set_some(def_id.index, ast_item.defaultness); let impl_item = self.tcx.associated_item(def_id); - self.tables.assoc_container.set(def_id.index, impl_item.container); + self.tables.assoc_container.set_some(def_id.index, impl_item.container); match impl_item.kind { ty::AssocKind::Fn => { let hir::ImplItemKind::Fn(ref sig, body) = ast_item.kind else { bug!() }; - self.tables.asyncness.set(def_id.index, sig.header.asyncness); + self.tables.asyncness.set_some(def_id.index, sig.header.asyncness); record_array!(self.tables.fn_arg_names[def_id] <- self.tcx.hir().body_param_names(body)); // Can be inside `impl const Trait`, so using sig.header.constness is not reliable let constness = if self.tcx.is_const_fn_raw(def_id) { @@ -1382,18 +1383,16 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { } else { hir::Constness::NotConst }; - self.tables.constness.set(def_id.index, constness); + self.tables.constness.set_some(def_id.index, constness); } ty::AssocKind::Const | ty::AssocKind::Type => {} } if let Some(trait_item_def_id) = impl_item.trait_item_def_id { - self.tables.trait_item_def_id.set(def_id.index, trait_item_def_id.into()); + self.tables.trait_item_def_id.set_some(def_id.index, trait_item_def_id.into()); } if impl_item.kind == ty::AssocKind::Fn { record!(self.tables.fn_sig[def_id] <- tcx.fn_sig(def_id)); - if tcx.is_intrinsic(def_id) { - self.tables.is_intrinsic.set_nullable(def_id.index, true); - } + self.tables.is_intrinsic.set(def_id.index, tcx.is_intrinsic(def_id)); } } @@ -1522,14 +1521,12 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { match item.kind { hir::ItemKind::Fn(ref sig, .., body) => { - self.tables.asyncness.set(def_id.index, sig.header.asyncness); + self.tables.asyncness.set_some(def_id.index, sig.header.asyncness); record_array!(self.tables.fn_arg_names[def_id] <- self.tcx.hir().body_param_names(body)); - self.tables.constness.set(def_id.index, sig.header.constness); + self.tables.constness.set_some(def_id.index, sig.header.constness); } hir::ItemKind::Macro(ref macro_def, _) => { - if macro_def.macro_rules { - self.tables.is_macro_rules.set_nullable(def_id.index, true); - } + self.tables.is_macro_rules.set(def_id.index, macro_def.macro_rules); record!(self.tables.macro_definition[def_id] <- &*macro_def.body); } hir::ItemKind::Mod(ref m) => { @@ -1537,20 +1534,20 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { } hir::ItemKind::OpaqueTy(ref opaque) => { self.encode_explicit_item_bounds(def_id); - if matches!(opaque.origin, hir::OpaqueTyOrigin::TyAlias) { - self.tables.is_type_alias_impl_trait.set_nullable(def_id.index, true); - } + self.tables + .is_type_alias_impl_trait + .set(def_id.index, matches!(opaque.origin, hir::OpaqueTyOrigin::TyAlias)); } hir::ItemKind::Impl(hir::Impl { defaultness, constness, .. }) => { - self.tables.impl_defaultness.set(def_id.index, *defaultness); - self.tables.constness.set(def_id.index, *constness); + self.tables.impl_defaultness.set_some(def_id.index, *defaultness); + self.tables.constness.set_some(def_id.index, *constness); let trait_ref = self.tcx.impl_trait_ref(def_id).map(ty::EarlyBinder::skip_binder); if let Some(trait_ref) = trait_ref { let trait_def = self.tcx.trait_def(trait_ref.def_id); if let Ok(mut an) = trait_def.ancestors(self.tcx, def_id) { if let Some(specialization_graph::Node::Impl(parent)) = an.nth(1) { - self.tables.impl_parent.set(def_id.index, parent.into()); + self.tables.impl_parent.set_some(def_id.index, parent.into()); } } @@ -1564,7 +1561,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { } let polarity = self.tcx.impl_polarity(def_id); - self.tables.impl_polarity.set(def_id.index, polarity); + self.tables.impl_polarity.set_some(def_id.index, polarity); } hir::ItemKind::Trait(..) => { let trait_def = self.tcx.trait_def(def_id); @@ -1601,9 +1598,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { } if let hir::ItemKind::Fn(..) = item.kind { record!(self.tables.fn_sig[def_id] <- tcx.fn_sig(def_id)); - if tcx.is_intrinsic(def_id) { - self.tables.is_intrinsic.set_nullable(def_id.index, true); - } + self.tables.is_intrinsic.set(def_id.index, tcx.is_intrinsic(def_id)); } if let hir::ItemKind::Impl { .. } = item.kind { if let Some(trait_ref) = self.tcx.impl_trait_ref(def_id) { @@ -1650,7 +1645,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { ty::Closure(_, substs) => { let constness = self.tcx.constness(def_id.to_def_id()); - self.tables.constness.set(def_id.to_def_id().index, constness); + self.tables.constness.set_some(def_id.to_def_id().index, constness); record!(self.tables.fn_sig[def_id.to_def_id()] <- ty::EarlyBinder(substs.as_closure().sig())); } @@ -1678,12 +1673,12 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { self.hygiene_ctxt.encode( &mut (&mut *self, &mut syntax_contexts, &mut expn_data_table, &mut expn_hash_table), |(this, syntax_contexts, _, _), index, ctxt_data| { - syntax_contexts.set(index, this.lazy(ctxt_data)); + syntax_contexts.set_some(index, this.lazy(ctxt_data)); }, |(this, _, expn_data_table, expn_hash_table), index, expn_data, hash| { if let Some(index) = index.as_local() { - expn_data_table.set(index.as_raw(), this.lazy(expn_data)); - expn_hash_table.set(index.as_raw(), this.lazy(hash)); + expn_data_table.set_some(index.as_raw(), this.lazy(expn_data)); + expn_hash_table.set_some(index.as_raw(), this.lazy(hash)); } }, ); @@ -1708,10 +1703,10 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { let spans = self.tcx.sess.parse_sess.proc_macro_quoted_spans(); for (i, span) in spans.into_iter().enumerate() { let span = self.lazy(span); - self.tables.proc_macro_quoted_spans.set(i, span); + self.tables.proc_macro_quoted_spans.set_some(i, span); } - self.tables.opt_def_kind.set(LOCAL_CRATE.as_def_id().index, DefKind::Mod); + self.tables.opt_def_kind.set_some(LOCAL_CRATE.as_def_id().index, DefKind::Mod); record!(self.tables.def_span[LOCAL_CRATE.as_def_id()] <- tcx.def_span(LOCAL_CRATE.as_def_id())); self.encode_attrs(LOCAL_CRATE.as_def_id().expect_local()); let vis = tcx.local_visibility(CRATE_DEF_ID).map_id(|def_id| def_id.local_def_index); @@ -1753,8 +1748,8 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { def_key.disambiguated_data.data = DefPathData::MacroNs(name); let def_id = id.to_def_id(); - self.tables.opt_def_kind.set(def_id.index, DefKind::Macro(macro_kind)); - self.tables.proc_macro.set(def_id.index, macro_kind); + self.tables.opt_def_kind.set_some(def_id.index, DefKind::Macro(macro_kind)); + self.tables.proc_macro.set_some(def_id.index, macro_kind); self.encode_attrs(id); record!(self.tables.def_keys[def_id] <- def_key); record!(self.tables.def_ident_span[def_id] <- span); @@ -1969,7 +1964,7 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { Linkage::Static => Some(LinkagePreference::RequireStatic), })); } - LazyArray::empty() + LazyArray::default() } fn encode_info_for_foreign_item(&mut self, def_id: DefId, nitem: &hir::ForeignItem<'_>) { @@ -1979,22 +1974,20 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { match nitem.kind { hir::ForeignItemKind::Fn(_, ref names, _) => { - self.tables.asyncness.set(def_id.index, hir::IsAsync::NotAsync); + self.tables.asyncness.set_some(def_id.index, hir::IsAsync::NotAsync); record_array!(self.tables.fn_arg_names[def_id] <- *names); let constness = if self.tcx.is_const_fn_raw(def_id) { hir::Constness::Const } else { hir::Constness::NotConst }; - self.tables.constness.set(def_id.index, constness); + self.tables.constness.set_some(def_id.index, constness); record!(self.tables.fn_sig[def_id] <- tcx.fn_sig(def_id)); } hir::ForeignItemKind::Static(..) | hir::ForeignItemKind::Type => {} } if let hir::ForeignItemKind::Fn(..) = nitem.kind { - if tcx.is_intrinsic(def_id) { - self.tables.is_intrinsic.set_nullable(def_id.index, true); - } + self.tables.is_intrinsic.set(def_id.index, tcx.is_intrinsic(def_id)); } } } diff --git a/compiler/rustc_metadata/src/rmeta/mod.rs b/compiler/rustc_metadata/src/rmeta/mod.rs index 37af9e64e9a3..a74aa381d9eb 100644 --- a/compiler/rustc_metadata/src/rmeta/mod.rs +++ b/compiler/rustc_metadata/src/rmeta/mod.rs @@ -115,14 +115,16 @@ impl ParameterizedOverTcx for LazyArray { type Value<'tcx> = LazyArray>; } +impl Default for LazyArray { + fn default() -> LazyArray { + LazyArray::from_position_and_num_elems(NonZeroUsize::new(1).unwrap(), 0) + } +} + impl LazyArray { fn from_position_and_num_elems(position: NonZeroUsize, num_elems: usize) -> LazyArray { LazyArray { position, num_elems, _marker: PhantomData } } - - fn empty() -> LazyArray { - LazyArray::from_position_and_num_elems(NonZeroUsize::new(1).unwrap(), 0) - } } /// A list of lazily-decoded values, with the added capability of random access. @@ -316,7 +318,7 @@ pub(crate) struct IncoherentImpls { /// Define `LazyTables` and `TableBuilders` at the same time. macro_rules! define_tables { ( - - nullable: $($name1:ident: Table<$IDX1:ty, $T1:ty>,)+ + - defaulted: $($name1:ident: Table<$IDX1:ty, $T1:ty>,)+ - optional: $($name2:ident: Table<$IDX2:ty, $T2:ty>,)+ ) => { #[derive(MetadataEncodable, MetadataDecodable)] @@ -343,11 +345,15 @@ macro_rules! define_tables { } define_tables! { -- nullable: +- defaulted: is_intrinsic: Table, is_macro_rules: Table, is_type_alias_impl_trait: Table, attr_flags: Table, + def_path_hashes: Table, + explicit_item_bounds: Table, Span)>>, + inferred_outlives_of: Table, Span)>>, + inherent_impls: Table>, - optional: attributes: Table>, @@ -360,12 +366,8 @@ define_tables! { lookup_const_stability: Table>, lookup_default_body_stability: Table>, lookup_deprecation_entry: Table>, - // As an optimization, a missing entry indicates an empty `&[]`. - explicit_item_bounds: Table, Span)>>, explicit_predicates_of: Table>>, generics_of: Table>, - // As an optimization, a missing entry indicates an empty `&[]`. - inferred_outlives_of: Table, Span)>>, super_predicates_of: Table>>, type_of: Table>>, variances_of: Table>, @@ -393,7 +395,6 @@ define_tables! { generator_kind: Table>, trait_def: Table>, trait_item_def_id: Table, - inherent_impls: Table>, expn_that_defined: Table>, unused_generic_params: Table>, params_in_repr: Table>>, @@ -403,7 +404,6 @@ define_tables! { // `DefPathTable` up front, since we may only ever use a few // definitions from any given crate. def_keys: Table>, - def_path_hashes: Table, proc_macro_quoted_spans: Table>, generator_diagnostic_data: Table>>, variant_data: Table>, diff --git a/compiler/rustc_metadata/src/rmeta/table.rs b/compiler/rustc_metadata/src/rmeta/table.rs index 70dbf6476e2f..99bec570600a 100644 --- a/compiler/rustc_metadata/src/rmeta/table.rs +++ b/compiler/rustc_metadata/src/rmeta/table.rs @@ -10,11 +10,51 @@ use rustc_span::hygiene::MacroKind; use std::marker::PhantomData; use std::num::NonZeroUsize; +pub(super) trait IsDefault: Default { + fn is_default(&self) -> bool; +} + +impl IsDefault for Option { + fn is_default(&self) -> bool { + self.is_none() + } +} + +impl IsDefault for AttrFlags { + fn is_default(&self) -> bool { + self.is_empty() + } +} + +impl IsDefault for bool { + fn is_default(&self) -> bool { + !self + } +} + +impl IsDefault for u32 { + fn is_default(&self) -> bool { + *self == 0 + } +} + +impl IsDefault for LazyArray { + fn is_default(&self) -> bool { + self.num_elems == 0 + } +} + +impl IsDefault for DefPathHash { + fn is_default(&self) -> bool { + self.0 == Fingerprint::ZERO + } +} + /// Helper trait, for encoding to, and decoding from, a fixed number of bytes. /// Used mainly for Lazy positions and lengths. /// Unchecked invariant: `Self::default()` should encode as `[0; BYTE_LEN]`, /// but this has no impact on safety. -pub(super) trait FixedSizeEncoding: Default { +pub(super) trait FixedSizeEncoding: IsDefault { /// This should be `[u8; BYTE_LEN]`; /// Cannot use an associated `const BYTE_LEN: usize` instead due to const eval limitations. type ByteArray; @@ -23,6 +63,8 @@ pub(super) trait FixedSizeEncoding: Default { fn write_to_bytes(self, b: &mut Self::ByteArray); } +/// This implementation is not used generically, but for reading/writing +/// concrete `u32` fields in `Lazy*` structures, which may be zero. impl FixedSizeEncoding for u32 { type ByteArray = [u8; 4]; @@ -58,7 +100,7 @@ macro_rules! fixed_size_enum { fn write_to_bytes(self, b: &mut [u8;1]) { use $ty::*; b[0] = match self { - None => 0, + None => unreachable!(), $(Some($($pat)*) => 1 + ${index()},)* } } @@ -155,20 +197,18 @@ fixed_size_enum! { } // We directly encode `DefPathHash` because a `LazyValue` would incur a 25% cost. -impl FixedSizeEncoding for Option { +impl FixedSizeEncoding for DefPathHash { type ByteArray = [u8; 16]; #[inline] fn from_bytes(b: &[u8; 16]) -> Self { - Some(DefPathHash(Fingerprint::from_le_bytes(*b))) + DefPathHash(Fingerprint::from_le_bytes(*b)) } #[inline] fn write_to_bytes(self, b: &mut [u8; 16]) { - let Some(DefPathHash(fingerprint)) = self else { - panic!("Trying to encode absent DefPathHash.") - }; - *b = fingerprint.to_le_bytes(); + debug_assert!(!self.is_default()); + *b = self.0.to_le_bytes(); } } @@ -179,17 +219,17 @@ impl FixedSizeEncoding for Option { #[inline] fn from_bytes(b: &[u8; 8]) -> Self { let krate = u32::from_le_bytes(b[0..4].try_into().unwrap()); - let index = u32::from_le_bytes(b[4..8].try_into().unwrap()); if krate == 0 { return None; } + let index = u32::from_le_bytes(b[4..8].try_into().unwrap()); Some(RawDefId { krate: krate - 1, index }) } #[inline] fn write_to_bytes(self, b: &mut [u8; 8]) { match self { - None => *b = [0; 8], + None => unreachable!(), Some(RawDefId { krate, index }) => { // CrateNum is less than `CrateNum::MAX_AS_U32`. debug_assert!(krate < u32::MAX); @@ -210,6 +250,7 @@ impl FixedSizeEncoding for AttrFlags { #[inline] fn write_to_bytes(self, b: &mut [u8; 1]) { + debug_assert!(!self.is_default()); b[0] = self.bits(); } } @@ -224,6 +265,7 @@ impl FixedSizeEncoding for bool { #[inline] fn write_to_bytes(self, b: &mut [u8; 1]) { + debug_assert!(!self.is_default()); b[0] = self as u8 } } @@ -242,9 +284,54 @@ impl FixedSizeEncoding for Option> { #[inline] fn write_to_bytes(self, b: &mut [u8; 4]) { - let position = self.map_or(0, |lazy| lazy.position.get()); + match self { + None => unreachable!(), + Some(lazy) => { + let position = lazy.position.get(); + let position: u32 = position.try_into().unwrap(); + position.write_to_bytes(b) + } + } + } +} + +impl LazyArray { + #[inline] + fn write_to_bytes_impl(self, b: &mut [u8; 8]) { + let ([position_bytes, meta_bytes],[])= b.as_chunks_mut::<4>() else { panic!() }; + + let position = self.position.get(); let position: u32 = position.try_into().unwrap(); - position.write_to_bytes(b) + position.write_to_bytes(position_bytes); + + let len = self.num_elems; + let len: u32 = len.try_into().unwrap(); + len.write_to_bytes(meta_bytes); + } + + fn from_bytes_impl(position_bytes: &[u8; 4], meta_bytes: &[u8; 4]) -> Option> { + let position = NonZeroUsize::new(u32::from_bytes(position_bytes) as usize)?; + let len = u32::from_bytes(meta_bytes) as usize; + Some(LazyArray::from_position_and_num_elems(position, len)) + } +} + +impl FixedSizeEncoding for LazyArray { + type ByteArray = [u8; 8]; + + #[inline] + fn from_bytes(b: &[u8; 8]) -> Self { + let ([position_bytes, meta_bytes],[])= b.as_chunks::<4>() else { panic!() }; + if *meta_bytes == [0; 4] { + return Default::default(); + } + LazyArray::from_bytes_impl(position_bytes, meta_bytes).unwrap() + } + + #[inline] + fn write_to_bytes(self, b: &mut [u8; 8]) { + assert!(!self.is_default()); + self.write_to_bytes_impl(b) } } @@ -253,23 +340,16 @@ impl FixedSizeEncoding for Option> { #[inline] fn from_bytes(b: &[u8; 8]) -> Self { - let ([ref position_bytes, ref meta_bytes],[])= b.as_chunks::<4>() else { panic!() }; - let position = NonZeroUsize::new(u32::from_bytes(position_bytes) as usize)?; - let len = u32::from_bytes(meta_bytes) as usize; - Some(LazyArray::from_position_and_num_elems(position, len)) + let ([position_bytes, meta_bytes],[])= b.as_chunks::<4>() else { panic!() }; + LazyArray::from_bytes_impl(position_bytes, meta_bytes) } #[inline] fn write_to_bytes(self, b: &mut [u8; 8]) { - let ([ref mut position_bytes, ref mut meta_bytes],[])= b.as_chunks_mut::<4>() else { panic!() }; - - let position = self.map_or(0, |lazy| lazy.position.get()); - let position: u32 = position.try_into().unwrap(); - position.write_to_bytes(position_bytes); - - let len = self.map_or(0, |lazy| lazy.num_elems); - let len: u32 = len.try_into().unwrap(); - len.write_to_bytes(meta_bytes); + match self { + None => unreachable!(), + Some(lazy) => lazy.write_to_bytes_impl(b), + } } } @@ -289,20 +369,27 @@ impl TableBuilder> where Option: FixedSizeEncoding, { - pub(crate) fn set(&mut self, i: I, value: T) { - self.set_nullable(i, Some(value)) + pub(crate) fn set_some(&mut self, i: I, value: T) { + self.set(i, Some(value)) } } impl> TableBuilder { - pub(crate) fn set_nullable(&mut self, i: I, value: T) { - // FIXME(eddyb) investigate more compact encodings for sparse tables. - // On the PR @michaelwoerister mentioned: - // > Space requirements could perhaps be optimized by using the HAMT `popcnt` - // > trick (i.e. divide things into buckets of 32 or 64 items and then - // > store bit-masks of which item in each bucket is actually serialized). - self.blocks.ensure_contains_elem(i, || [0; N]); - value.write_to_bytes(&mut self.blocks[i]); + /// Sets the table value if it is not default. + /// ATTENTION: For optimization default values are simply ignored by this function, because + /// right now metadata tables never need to reset non-default values to default. If such need + /// arises in the future then a new method (e.g. `clear` or `reset`) will need to be introduced + /// for doing that explicitly. + pub(crate) fn set(&mut self, i: I, value: T) { + if !value.is_default() { + // FIXME(eddyb) investigate more compact encodings for sparse tables. + // On the PR @michaelwoerister mentioned: + // > Space requirements could perhaps be optimized by using the HAMT `popcnt` + // > trick (i.e. divide things into buckets of 32 or 64 items and then + // > store bit-masks of which item in each bucket is actually serialized). + self.blocks.ensure_contains_elem(i, || [0; N]); + value.write_to_bytes(&mut self.blocks[i]); + } } pub(crate) fn encode(&self, buf: &mut FileEncoder) -> LazyTable { @@ -331,10 +418,7 @@ where let start = self.position.get(); let bytes = &metadata.blob()[start..start + self.encoded_size]; let (bytes, []) = bytes.as_chunks::() else { panic!() }; - match bytes.get(i.index()) { - Some(bytes) => FixedSizeEncoding::from_bytes(bytes), - None => FixedSizeEncoding::from_bytes(&[0; N]), - } + bytes.get(i.index()).map_or_else(Default::default, FixedSizeEncoding::from_bytes) } /// Size of the table in entries, including possible gaps. diff --git a/compiler/rustc_middle/src/arena.rs b/compiler/rustc_middle/src/arena.rs index 72f4f6e649bc..2ba7ec5b1519 100644 --- a/compiler/rustc_middle/src/arena.rs +++ b/compiler/rustc_middle/src/arena.rs @@ -112,6 +112,7 @@ macro_rules! arena_types { [decode] trait_impl_trait_tys: rustc_data_structures::fx::FxHashMap>, [] bit_set_u32: rustc_index::bit_set::BitSet, + [] external_constraints: rustc_middle::traits::solve::ExternalConstraintsData<'tcx>, ]); ) } diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 05a9ec5e6d04..10ac7e0d39af 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -2098,10 +2098,7 @@ impl<'tcx> Debug for Rvalue<'tcx> { AggregateKind::Closure(def_id, substs) => ty::tls::with(|tcx| { let name = if tcx.sess.opts.unstable_opts.span_free_formats { let substs = tcx.lift(substs).unwrap(); - format!( - "[closure@{}]", - tcx.def_path_str_with_substs(def_id.to_def_id(), substs), - ) + format!("[closure@{}]", tcx.def_path_str_with_substs(def_id, substs),) } else { let span = tcx.def_span(def_id); format!( @@ -2112,11 +2109,17 @@ impl<'tcx> Debug for Rvalue<'tcx> { let mut struct_fmt = fmt.debug_struct(&name); // FIXME(project-rfc-2229#48): This should be a list of capture names/places - if let Some(upvars) = tcx.upvars_mentioned(def_id) { + if let Some(def_id) = def_id.as_local() + && let Some(upvars) = tcx.upvars_mentioned(def_id) + { for (&var_id, place) in iter::zip(upvars.keys(), places) { let var_name = tcx.hir().name(var_id); struct_fmt.field(var_name.as_str(), place); } + } else { + for (index, place) in places.iter().enumerate() { + struct_fmt.field(&format!("{index}"), place); + } } struct_fmt.finish() @@ -2127,11 +2130,17 @@ impl<'tcx> Debug for Rvalue<'tcx> { let mut struct_fmt = fmt.debug_struct(&name); // FIXME(project-rfc-2229#48): This should be a list of capture names/places - if let Some(upvars) = tcx.upvars_mentioned(def_id) { + if let Some(def_id) = def_id.as_local() + && let Some(upvars) = tcx.upvars_mentioned(def_id) + { for (&var_id, place) in iter::zip(upvars.keys(), places) { let var_name = tcx.hir().name(var_id); struct_fmt.field(var_name.as_str(), place); } + } else { + for (index, place) in places.iter().enumerate() { + struct_fmt.field(&format!("{index}"), place); + } } struct_fmt.finish() diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index 549bc65d6d79..66ee68187896 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -1203,10 +1203,8 @@ pub enum AggregateKind<'tcx> { /// active field index would identity the field `c` Adt(DefId, VariantIdx, SubstsRef<'tcx>, Option, Option), - // Note: We can use LocalDefId since closures and generators a deaggregated - // before codegen. - Closure(LocalDefId, SubstsRef<'tcx>), - Generator(LocalDefId, SubstsRef<'tcx>, hir::Movability), + Closure(DefId, SubstsRef<'tcx>), + Generator(DefId, SubstsRef<'tcx>, hir::Movability), } #[derive(Copy, Clone, Debug, PartialEq, Eq, TyEncodable, TyDecodable, Hash, HashStable)] diff --git a/compiler/rustc_middle/src/mir/tcx.rs b/compiler/rustc_middle/src/mir/tcx.rs index 599f0b9d3fab..b5e0b88bbe52 100644 --- a/compiler/rustc_middle/src/mir/tcx.rs +++ b/compiler/rustc_middle/src/mir/tcx.rs @@ -205,9 +205,9 @@ impl<'tcx> Rvalue<'tcx> { AggregateKind::Adt(did, _, substs, _, _) => { tcx.bound_type_of(did).subst(tcx, substs) } - AggregateKind::Closure(did, substs) => tcx.mk_closure(did.to_def_id(), substs), + AggregateKind::Closure(did, substs) => tcx.mk_closure(did, substs), AggregateKind::Generator(did, substs, movability) => { - tcx.mk_generator(did.to_def_id(), substs, movability) + tcx.mk_generator(did, substs, movability) } }, Rvalue::ShallowInitBox(_, ty) => tcx.mk_box(ty), diff --git a/compiler/rustc_middle/src/traits/mod.rs b/compiler/rustc_middle/src/traits/mod.rs index cf3dce480649..c528929e7561 100644 --- a/compiler/rustc_middle/src/traits/mod.rs +++ b/compiler/rustc_middle/src/traits/mod.rs @@ -5,6 +5,7 @@ mod chalk; pub mod query; pub mod select; +pub mod solve; pub mod specialization_graph; mod structural_impls; pub mod util; @@ -474,6 +475,8 @@ pub enum WellFormedLoc { pub struct ImplDerivedObligationCause<'tcx> { pub derived: DerivedObligationCause<'tcx>, pub impl_def_id: DefId, + /// The index of the derived predicate in the parent impl's predicates. + pub impl_def_predicate_index: Option, pub span: Span, } diff --git a/compiler/rustc_middle/src/traits/solve.rs b/compiler/rustc_middle/src/traits/solve.rs new file mode 100644 index 000000000000..63f9c32f0a74 --- /dev/null +++ b/compiler/rustc_middle/src/traits/solve.rs @@ -0,0 +1,55 @@ +use std::ops::ControlFlow; + +use rustc_data_structures::intern::Interned; + +use crate::ty::{FallibleTypeFolder, Ty, TypeFoldable, TypeFolder, TypeVisitable, TypeVisitor}; + +#[derive(Debug, PartialEq, Eq, Copy, Clone, Hash)] +pub struct ExternalConstraints<'tcx>(pub(crate) Interned<'tcx, ExternalConstraintsData<'tcx>>); + +impl<'tcx> std::ops::Deref for ExternalConstraints<'tcx> { + type Target = ExternalConstraintsData<'tcx>; + + fn deref(&self) -> &Self::Target { + &*self.0 + } +} + +/// Additional constraints returned on success. +#[derive(Debug, PartialEq, Eq, Clone, Hash, Default)] +pub struct ExternalConstraintsData<'tcx> { + // FIXME: implement this. + pub regions: (), + pub opaque_types: Vec<(Ty<'tcx>, Ty<'tcx>)>, +} + +impl<'tcx> TypeFoldable<'tcx> for ExternalConstraints<'tcx> { + fn try_fold_with>(self, folder: &mut F) -> Result { + Ok(FallibleTypeFolder::tcx(folder).intern_external_constraints(ExternalConstraintsData { + regions: (), + opaque_types: self + .opaque_types + .iter() + .map(|opaque| opaque.try_fold_with(folder)) + .collect::>()?, + })) + } + + fn fold_with>(self, folder: &mut F) -> Self { + TypeFolder::tcx(folder).intern_external_constraints(ExternalConstraintsData { + regions: (), + opaque_types: self.opaque_types.iter().map(|opaque| opaque.fold_with(folder)).collect(), + }) + } +} + +impl<'tcx> TypeVisitable<'tcx> for ExternalConstraints<'tcx> { + fn visit_with>( + &self, + visitor: &mut V, + ) -> std::ops::ControlFlow { + self.regions.visit_with(visitor)?; + self.opaque_types.visit_with(visitor)?; + ControlFlow::Continue(()) + } +} diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index f98172e42016..9205a8a0ffed 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -17,6 +17,7 @@ use crate::mir::{ }; use crate::thir::Thir; use crate::traits; +use crate::traits::solve::{ExternalConstraints, ExternalConstraintsData}; use crate::ty::query::{self, TyCtxtAt}; use crate::ty::{ self, AdtDef, AdtDefData, AdtKind, Binder, Const, ConstData, DefIdTree, FloatTy, FloatVar, @@ -148,6 +149,7 @@ pub struct CtxtInterners<'tcx> { bound_variable_kinds: InternedSet<'tcx, List>, layout: InternedSet<'tcx, LayoutS>, adt_def: InternedSet<'tcx, AdtDefData>, + external_constraints: InternedSet<'tcx, ExternalConstraintsData<'tcx>>, } impl<'tcx> CtxtInterners<'tcx> { @@ -169,6 +171,7 @@ impl<'tcx> CtxtInterners<'tcx> { bound_variable_kinds: Default::default(), layout: Default::default(), adt_def: Default::default(), + external_constraints: Default::default(), } } @@ -1449,6 +1452,7 @@ direct_interners! { const_allocation: intern_const_alloc(Allocation): ConstAllocation -> ConstAllocation<'tcx>, layout: intern_layout(LayoutS): Layout -> Layout<'tcx>, adt_def: intern_adt_def(AdtDefData): AdtDef -> AdtDef<'tcx>, + external_constraints: intern_external_constraints(ExternalConstraintsData<'tcx>): ExternalConstraints -> ExternalConstraints<'tcx>, } macro_rules! slice_interners { diff --git a/compiler/rustc_middle/src/ty/diagnostics.rs b/compiler/rustc_middle/src/ty/diagnostics.rs index 4b4518f61e8d..cd9b92701407 100644 --- a/compiler/rustc_middle/src/ty/diagnostics.rs +++ b/compiler/rustc_middle/src/ty/diagnostics.rs @@ -3,8 +3,9 @@ use std::ops::ControlFlow; use crate::ty::{ - visit::TypeVisitable, AliasTy, Const, ConstKind, DefIdTree, InferConst, InferTy, Opaque, - PolyTraitPredicate, Projection, Ty, TyCtxt, TypeSuperVisitable, TypeVisitor, + visit::TypeVisitable, AliasTy, Const, ConstKind, DefIdTree, FallibleTypeFolder, InferConst, + InferTy, Opaque, PolyTraitPredicate, Projection, Ty, TyCtxt, TypeFoldable, TypeSuperFoldable, + TypeSuperVisitable, TypeVisitor, }; use rustc_data_structures::fx::FxHashMap; @@ -76,7 +77,7 @@ impl<'tcx> Ty<'tcx> { } } -pub trait IsSuggestable<'tcx> { +pub trait IsSuggestable<'tcx>: Sized { /// Whether this makes sense to suggest in a diagnostic. /// /// We filter out certain types and constants since they don't provide @@ -87,15 +88,21 @@ pub trait IsSuggestable<'tcx> { /// Only if `infer_suggestable` is true, we consider type and const /// inference variables to be suggestable. fn is_suggestable(self, tcx: TyCtxt<'tcx>, infer_suggestable: bool) -> bool; + + fn make_suggestable(self, tcx: TyCtxt<'tcx>, infer_suggestable: bool) -> Option; } impl<'tcx, T> IsSuggestable<'tcx> for T where - T: TypeVisitable<'tcx>, + T: TypeVisitable<'tcx> + TypeFoldable<'tcx>, { fn is_suggestable(self, tcx: TyCtxt<'tcx>, infer_suggestable: bool) -> bool { self.visit_with(&mut IsSuggestableVisitor { tcx, infer_suggestable }).is_continue() } + + fn make_suggestable(self, tcx: TyCtxt<'tcx>, infer_suggestable: bool) -> Option { + self.try_fold_with(&mut MakeSuggestableFolder { tcx, infer_suggestable }).ok() + } } pub fn suggest_arbitrary_trait_bound<'tcx>( @@ -509,3 +516,83 @@ impl<'tcx> TypeVisitor<'tcx> for IsSuggestableVisitor<'tcx> { c.super_visit_with(self) } } + +pub struct MakeSuggestableFolder<'tcx> { + tcx: TyCtxt<'tcx>, + infer_suggestable: bool, +} + +impl<'tcx> FallibleTypeFolder<'tcx> for MakeSuggestableFolder<'tcx> { + type Error = (); + + fn tcx(&self) -> TyCtxt<'tcx> { + self.tcx + } + + fn try_fold_ty(&mut self, t: Ty<'tcx>) -> Result, Self::Error> { + let t = match *t.kind() { + Infer(InferTy::TyVar(_)) if self.infer_suggestable => t, + + FnDef(def_id, substs) => { + self.tcx.mk_fn_ptr(self.tcx.fn_sig(def_id).subst(self.tcx, substs)) + } + + // FIXME(compiler-errors): We could replace these with infer, I guess. + Closure(..) + | Infer(..) + | Generator(..) + | GeneratorWitness(..) + | Bound(_, _) + | Placeholder(_) + | Error(_) => { + return Err(()); + } + + Alias(Opaque, AliasTy { def_id, .. }) => { + let parent = self.tcx.parent(def_id); + if let hir::def::DefKind::TyAlias | hir::def::DefKind::AssocTy = self.tcx.def_kind(parent) + && let Alias(Opaque, AliasTy { def_id: parent_opaque_def_id, .. }) = *self.tcx.type_of(parent).kind() + && parent_opaque_def_id == def_id + { + t + } else { + return Err(()); + } + } + + Param(param) => { + // FIXME: It would be nice to make this not use string manipulation, + // but it's pretty hard to do this, since `ty::ParamTy` is missing + // sufficient info to determine if it is synthetic, and we don't + // always have a convenient way of getting `ty::Generics` at the call + // sites we invoke `IsSuggestable::is_suggestable`. + if param.name.as_str().starts_with("impl ") { + return Err(()); + } + + t + } + + _ => t, + }; + + t.try_super_fold_with(self) + } + + fn try_fold_const(&mut self, c: Const<'tcx>) -> Result, ()> { + let c = match c.kind() { + ConstKind::Infer(InferConst::Var(_)) if self.infer_suggestable => c, + + ConstKind::Infer(..) + | ConstKind::Bound(..) + | ConstKind::Placeholder(..) + | ConstKind::Error(..) => { + return Err(()); + } + + _ => c, + }; + + c.try_super_fold_with(self) + } +} diff --git a/compiler/rustc_middle/src/ty/fold.rs b/compiler/rustc_middle/src/ty/fold.rs index 1445bc1ed32e..8a0019bc0127 100644 --- a/compiler/rustc_middle/src/ty/fold.rs +++ b/compiler/rustc_middle/src/ty/fold.rs @@ -105,7 +105,7 @@ pub trait TypeSuperFoldable<'tcx>: TypeFoldable<'tcx> { /// the infallible methods of this trait to ensure that the two APIs /// are coherent. pub trait TypeFolder<'tcx>: FallibleTypeFolder<'tcx, Error = !> { - fn tcx<'a>(&'a self) -> TyCtxt<'tcx>; + fn tcx(&self) -> TyCtxt<'tcx>; fn fold_binder(&mut self, t: Binder<'tcx, T>) -> Binder<'tcx, T> where diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index cdcd6281f209..4c2855821384 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -818,125 +818,114 @@ where let tcx = cx.tcx(); let param_env = cx.param_env(); - let pointee_info = - match *this.ty.kind() { - ty::RawPtr(mt) if offset.bytes() == 0 => { - tcx.layout_of(param_env.and(mt.ty)).ok().map(|layout| PointeeInfo { - size: layout.size, - align: layout.align.abi, - safe: None, - }) + let pointee_info = match *this.ty.kind() { + ty::RawPtr(mt) if offset.bytes() == 0 => { + tcx.layout_of(param_env.and(mt.ty)).ok().map(|layout| PointeeInfo { + size: layout.size, + align: layout.align.abi, + safe: None, + }) + } + ty::FnPtr(fn_sig) if offset.bytes() == 0 => { + tcx.layout_of(param_env.and(tcx.mk_fn_ptr(fn_sig))).ok().map(|layout| PointeeInfo { + size: layout.size, + align: layout.align.abi, + safe: None, + }) + } + ty::Ref(_, ty, mt) if offset.bytes() == 0 => { + // Use conservative pointer kind if not optimizing. This saves us the + // Freeze/Unpin queries, and can save time in the codegen backend (noalias + // attributes in LLVM have compile-time cost even in unoptimized builds). + let optimize = tcx.sess.opts.optimize != OptLevel::No; + let kind = match mt { + hir::Mutability::Not => PointerKind::SharedRef { + frozen: optimize && ty.is_freeze(tcx, cx.param_env()), + }, + hir::Mutability::Mut => PointerKind::MutableRef { + unpin: optimize && ty.is_unpin(tcx, cx.param_env()), + }, + }; + + tcx.layout_of(param_env.and(ty)).ok().map(|layout| PointeeInfo { + size: layout.size, + align: layout.align.abi, + safe: Some(kind), + }) + } + + _ => { + let mut data_variant = match this.variants { + // Within the discriminant field, only the niche itself is + // always initialized, so we only check for a pointer at its + // offset. + // + // If the niche is a pointer, it's either valid (according + // to its type), or null (which the niche field's scalar + // validity range encodes). This allows using + // `dereferenceable_or_null` for e.g., `Option<&T>`, and + // this will continue to work as long as we don't start + // using more niches than just null (e.g., the first page of + // the address space, or unaligned pointers). + Variants::Multiple { + tag_encoding: TagEncoding::Niche { untagged_variant, .. }, + tag_field, + .. + } if this.fields.offset(tag_field) == offset => { + Some(this.for_variant(cx, untagged_variant)) + } + _ => Some(this), + }; + + if let Some(variant) = data_variant { + // We're not interested in any unions. + if let FieldsShape::Union(_) = variant.fields { + data_variant = None; + } } - ty::FnPtr(fn_sig) if offset.bytes() == 0 => { - tcx.layout_of(param_env.and(tcx.mk_fn_ptr(fn_sig))).ok().map(|layout| { - PointeeInfo { size: layout.size, align: layout.align.abi, safe: None } - }) - } - ty::Ref(_, ty, mt) if offset.bytes() == 0 => { - let kind = if tcx.sess.opts.optimize == OptLevel::No { - // Use conservative pointer kind if not optimizing. This saves us the - // Freeze/Unpin queries, and can save time in the codegen backend (noalias - // attributes in LLVM have compile-time cost even in unoptimized builds). - PointerKind::SharedMutable - } else { - match mt { - hir::Mutability::Not => { - if ty.is_freeze(tcx, cx.param_env()) { - PointerKind::Frozen + + let mut result = None; + + if let Some(variant) = data_variant { + // FIXME(erikdesjardins): handle non-default addrspace ptr sizes + // (requires passing in the expected address space from the caller) + let ptr_end = offset + Pointer(AddressSpace::DATA).size(cx); + for i in 0..variant.fields.count() { + let field_start = variant.fields.offset(i); + if field_start <= offset { + let field = variant.field(cx, i); + result = field.to_result().ok().and_then(|field| { + if ptr_end <= field_start + field.size { + // We found the right field, look inside it. + let field_info = + field.pointee_info_at(cx, offset - field_start); + field_info } else { - PointerKind::SharedMutable - } - } - hir::Mutability::Mut => { - // References to self-referential structures should not be considered - // noalias, as another pointer to the structure can be obtained, that - // is not based-on the original reference. We consider all !Unpin - // types to be potentially self-referential here. - if ty.is_unpin(tcx, cx.param_env()) { - PointerKind::UniqueBorrowed - } else { - PointerKind::UniqueBorrowedPinned + None } + }); + if result.is_some() { + break; } } - }; - - tcx.layout_of(param_env.and(ty)).ok().map(|layout| PointeeInfo { - size: layout.size, - align: layout.align.abi, - safe: Some(kind), - }) + } } - _ => { - let mut data_variant = match this.variants { - // Within the discriminant field, only the niche itself is - // always initialized, so we only check for a pointer at its - // offset. - // - // If the niche is a pointer, it's either valid (according - // to its type), or null (which the niche field's scalar - // validity range encodes). This allows using - // `dereferenceable_or_null` for e.g., `Option<&T>`, and - // this will continue to work as long as we don't start - // using more niches than just null (e.g., the first page of - // the address space, or unaligned pointers). - Variants::Multiple { - tag_encoding: TagEncoding::Niche { untagged_variant, .. }, - tag_field, - .. - } if this.fields.offset(tag_field) == offset => { - Some(this.for_variant(cx, untagged_variant)) - } - _ => Some(this), - }; - - if let Some(variant) = data_variant { - // We're not interested in any unions. - if let FieldsShape::Union(_) = variant.fields { - data_variant = None; + // FIXME(eddyb) This should be for `ptr::Unique`, not `Box`. + if let Some(ref mut pointee) = result { + if let ty::Adt(def, _) = this.ty.kind() { + if def.is_box() && offset.bytes() == 0 { + let optimize = tcx.sess.opts.optimize != OptLevel::No; + pointee.safe = Some(PointerKind::Box { + unpin: optimize && this.ty.boxed_ty().is_unpin(tcx, cx.param_env()), + }); } } - - let mut result = None; - - if let Some(variant) = data_variant { - // FIXME(erikdesjardins): handle non-default addrspace ptr sizes - // (requires passing in the expected address space from the caller) - let ptr_end = offset + Pointer(AddressSpace::DATA).size(cx); - for i in 0..variant.fields.count() { - let field_start = variant.fields.offset(i); - if field_start <= offset { - let field = variant.field(cx, i); - result = field.to_result().ok().and_then(|field| { - if ptr_end <= field_start + field.size { - // We found the right field, look inside it. - let field_info = - field.pointee_info_at(cx, offset - field_start); - field_info - } else { - None - } - }); - if result.is_some() { - break; - } - } - } - } - - // FIXME(eddyb) This should be for `ptr::Unique`, not `Box`. - if let Some(ref mut pointee) = result { - if let ty::Adt(def, _) = this.ty.kind() { - if def.is_box() && offset.bytes() == 0 { - pointee.safe = Some(PointerKind::UniqueOwned); - } - } - } - - result } - }; + + result + } + }; debug!( "pointee_info_at (offset={:?}, type kind: {:?}) => {:?}", diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index e8e00d5feb87..bbb4fd999bc7 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -675,8 +675,12 @@ pub trait PrettyPrinter<'tcx>: p!(")") } ty::FnDef(def_id, substs) => { - let sig = self.tcx().fn_sig(def_id).subst(self.tcx(), substs); - p!(print(sig), " {{", print_value_path(def_id, substs), "}}"); + if NO_QUERIES.with(|q| q.get()) { + p!(print_def_path(def_id, substs)); + } else { + let sig = self.tcx().fn_sig(def_id).subst(self.tcx(), substs); + p!(print(sig), " {{", print_value_path(def_id, substs), "}}"); + } } ty::FnPtr(ref bare_fn) => p!(print(bare_fn)), ty::Infer(infer_ty) => { @@ -734,13 +738,13 @@ pub trait PrettyPrinter<'tcx>: } ty::Placeholder(placeholder) => p!(write("Placeholder({:?})", placeholder)), ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { - // FIXME(eddyb) print this with `print_def_path`. // We use verbose printing in 'NO_QUERIES' mode, to // avoid needing to call `predicates_of`. This should // only affect certain debug messages (e.g. messages printed // from `rustc_middle::ty` during the computation of `tcx.predicates_of`), // and should have no effect on any compiler output. - if self.should_print_verbose() || NO_QUERIES.with(|q| q.get()) { + if self.should_print_verbose() { + // FIXME(eddyb) print this with `print_def_path`. p!(write("Opaque({:?}, {:?})", def_id, substs)); return Ok(self); } @@ -748,6 +752,8 @@ pub trait PrettyPrinter<'tcx>: let parent = self.tcx().parent(def_id); match self.tcx().def_kind(parent) { DefKind::TyAlias | DefKind::AssocTy => { + // NOTE: I know we should check for NO_QUERIES here, but it's alright. + // `type_of` on a type alias or assoc type should never cause a cycle. if let ty::Alias(ty::Opaque, ty::AliasTy { def_id: d, .. }) = *self.tcx().type_of(parent).kind() { @@ -762,7 +768,14 @@ pub trait PrettyPrinter<'tcx>: p!(print_def_path(def_id, substs)); return Ok(self); } - _ => return self.pretty_print_opaque_impl_type(def_id, substs), + _ => { + if NO_QUERIES.with(|q| q.get()) { + p!(print_def_path(def_id, &[])); + return Ok(self); + } else { + return self.pretty_print_opaque_impl_type(def_id, substs); + } + } } } ty::Str => p!("str"), diff --git a/compiler/rustc_middle/src/ty/query.rs b/compiler/rustc_middle/src/ty/query.rs index 1be819ca610c..7151b79c5ab6 100644 --- a/compiler/rustc_middle/src/ty/query.rs +++ b/compiler/rustc_middle/src/ty/query.rs @@ -106,16 +106,6 @@ impl<'tcx> TyCtxt<'tcx> { } } -/// Helper for `TyCtxtEnsure` to avoid a closure. -#[inline(always)] -fn noop(_: &T) {} - -/// Helper to ensure that queries only return `Copy` types. -#[inline(always)] -fn copy(x: &T) -> T { - *x -} - macro_rules! query_helper_param_ty { (DefId) => { impl IntoQueryParam }; (LocalDefId) => { impl IntoQueryParam }; @@ -225,14 +215,10 @@ macro_rules! define_callbacks { let key = key.into_query_param(); opt_remap_env_constness!([$($modifiers)*][key]); - let cached = try_get_cached(self.tcx, &self.tcx.query_caches.$name, &key, noop); - - match cached { - Ok(()) => return, - Err(()) => (), - } - - self.tcx.queries.$name(self.tcx, DUMMY_SP, key, QueryMode::Ensure); + match try_get_cached(self.tcx, &self.tcx.query_caches.$name, &key) { + Some(_) => return, + None => self.tcx.queries.$name(self.tcx, DUMMY_SP, key, QueryMode::Ensure), + }; })* } @@ -254,14 +240,10 @@ macro_rules! define_callbacks { let key = key.into_query_param(); opt_remap_env_constness!([$($modifiers)*][key]); - let cached = try_get_cached(self.tcx, &self.tcx.query_caches.$name, &key, copy); - - match cached { - Ok(value) => return value, - Err(()) => (), + match try_get_cached(self.tcx, &self.tcx.query_caches.$name, &key) { + Some(value) => value, + None => self.tcx.queries.$name(self.tcx, self.span, key, QueryMode::Get).unwrap(), } - - self.tcx.queries.$name(self.tcx, self.span, key, QueryMode::Get).unwrap() })* } @@ -353,27 +335,25 @@ macro_rules! define_feedable { let tcx = self.tcx; let cache = &tcx.query_caches.$name; - let cached = try_get_cached(tcx, cache, &key, copy); - - match cached { - Ok(old) => { + match try_get_cached(tcx, cache, &key) { + Some(old) => { bug!( "Trying to feed an already recorded value for query {} key={key:?}:\nold value: {old:?}\nnew value: {value:?}", stringify!($name), - ); + ) + } + None => { + let dep_node = dep_graph::DepNode::construct(tcx, dep_graph::DepKind::$name, &key); + let dep_node_index = tcx.dep_graph.with_feed_task( + dep_node, + tcx, + key, + &value, + hash_result!([$($modifiers)*]), + ); + cache.complete(key, value, dep_node_index) } - Err(()) => (), } - - let dep_node = dep_graph::DepNode::construct(tcx, dep_graph::DepKind::$name, &key); - let dep_node_index = tcx.dep_graph.with_feed_task( - dep_node, - tcx, - key, - &value, - hash_result!([$($modifiers)*]), - ); - cache.complete(key, value, dep_node_index) } })* } diff --git a/compiler/rustc_middle/src/ty/relate.rs b/compiler/rustc_middle/src/ty/relate.rs index fa87301df7e7..890dabde1f73 100644 --- a/compiler/rustc_middle/src/ty/relate.rs +++ b/compiler/rustc_middle/src/ty/relate.rs @@ -629,6 +629,8 @@ pub fn super_relate_consts<'tcx, R: TypeRelation<'tcx>>( b = tcx.expand_abstract_consts(b); } + debug!("{}.super_relate_consts(normed_a = {:?}, normed_b = {:?})", relation.tag(), a, b); + // Currently, the values that can be unified are primitive types, // and those that derive both `PartialEq` and `Eq`, corresponding // to structural-match types. @@ -665,30 +667,28 @@ pub fn super_relate_consts<'tcx, R: TypeRelation<'tcx>>( // FIXME(generic_const_exprs): is it possible to relate two consts which are not identical // exprs? Should we care about that? + // FIXME(generic_const_exprs): relating the `ty()`s is a little weird since it is supposed to + // ICE If they mismatch. Unfortunately `ConstKind::Expr` is a little special and can be thought + // of as being generic over the argument types, however this is implicit so these types don't get + // related when we relate the substs of the item this const arg is for. let expr = match (ae, be) { - (Expr::Binop(a_op, al, ar), Expr::Binop(b_op, bl, br)) - if a_op == b_op && al.ty() == bl.ty() && ar.ty() == br.ty() => - { + (Expr::Binop(a_op, al, ar), Expr::Binop(b_op, bl, br)) if a_op == b_op => { + r.relate(al.ty(), bl.ty())?; + r.relate(ar.ty(), br.ty())?; Expr::Binop(a_op, r.consts(al, bl)?, r.consts(ar, br)?) } - (Expr::UnOp(a_op, av), Expr::UnOp(b_op, bv)) - if a_op == b_op && av.ty() == bv.ty() => - { + (Expr::UnOp(a_op, av), Expr::UnOp(b_op, bv)) if a_op == b_op => { + r.relate(av.ty(), bv.ty())?; Expr::UnOp(a_op, r.consts(av, bv)?) } - (Expr::Cast(ak, av, at), Expr::Cast(bk, bv, bt)) - if ak == bk && av.ty() == bv.ty() => - { + (Expr::Cast(ak, av, at), Expr::Cast(bk, bv, bt)) if ak == bk => { + r.relate(av.ty(), bv.ty())?; Expr::Cast(ak, r.consts(av, bv)?, r.tys(at, bt)?) } (Expr::FunctionCall(af, aa), Expr::FunctionCall(bf, ba)) - if aa.len() == ba.len() - && af.ty() == bf.ty() - && aa - .iter() - .zip(ba.iter()) - .all(|(a_arg, b_arg)| a_arg.ty() == b_arg.ty()) => + if aa.len() == ba.len() => { + r.relate(af.ty(), bf.ty())?; let func = r.consts(af, bf)?; let mut related_args = Vec::with_capacity(aa.len()); for (a_arg, b_arg) in aa.iter().zip(ba.iter()) { diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index 060d864389cb..98d6b6835636 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -2043,6 +2043,28 @@ impl<'tcx> Ty<'tcx> { cf.is_break() } + /// Checks whether a type recursively contains any closure + /// + /// Example: `Option<[closure@file.rs:4:20]>` returns true + pub fn contains_closure(self) -> bool { + struct ContainsClosureVisitor; + + impl<'tcx> TypeVisitor<'tcx> for ContainsClosureVisitor { + type BreakTy = (); + + fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow { + if let ty::Closure(_, _) = t.kind() { + ControlFlow::Break(()) + } else { + t.super_visit_with(self) + } + } + } + + let cf = self.visit_with(&mut ContainsClosureVisitor); + cf.is_break() + } + /// Returns the type and mutability of `*ty`. /// /// The parameter `explicit` indicates if this is an *explicit* dereference. diff --git a/compiler/rustc_mir_build/Cargo.toml b/compiler/rustc_mir_build/Cargo.toml index 4ad3343d3031..f24b165d7c23 100644 --- a/compiler/rustc_mir_build/Cargo.toml +++ b/compiler/rustc_mir_build/Cargo.toml @@ -11,7 +11,6 @@ tracing = "0.1" either = "1" rustc_middle = { path = "../rustc_middle" } rustc_apfloat = { path = "../rustc_apfloat" } -rustc_attr = { path = "../rustc_attr" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_index = { path = "../rustc_index" } rustc_errors = { path = "../rustc_errors" } diff --git a/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs b/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs index c7b3eb44dc5f..cd0e69328634 100644 --- a/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs +++ b/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs @@ -439,10 +439,14 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // We implicitly set the discriminant to 0. See // librustc_mir/transform/deaggregator.rs for details. let movability = movability.unwrap(); - Box::new(AggregateKind::Generator(closure_id, substs, movability)) + Box::new(AggregateKind::Generator( + closure_id.to_def_id(), + substs, + movability, + )) } UpvarSubsts::Closure(substs) => { - Box::new(AggregateKind::Closure(closure_id, substs)) + Box::new(AggregateKind::Closure(closure_id.to_def_id(), substs)) } }; block.and(Rvalue::Aggregate(result, operands)) diff --git a/compiler/rustc_mir_dataflow/Cargo.toml b/compiler/rustc_mir_dataflow/Cargo.toml index 324644b67928..68c61a18d72f 100644 --- a/compiler/rustc_mir_dataflow/Cargo.toml +++ b/compiler/rustc_mir_dataflow/Cargo.toml @@ -19,6 +19,5 @@ rustc_index = { path = "../rustc_index" } rustc_macros = { path = "../rustc_macros" } rustc_middle = { path = "../rustc_middle" } rustc_serialize = { path = "../rustc_serialize" } -rustc_session = { path = "../rustc_session" } rustc_target = { path = "../rustc_target" } rustc_span = { path = "../rustc_span" } diff --git a/compiler/rustc_mir_dataflow/src/value_analysis.rs b/compiler/rustc_mir_dataflow/src/value_analysis.rs index 6bdbda909d7b..8bf6493be4b0 100644 --- a/compiler/rustc_mir_dataflow/src/value_analysis.rs +++ b/compiler/rustc_mir_dataflow/src/value_analysis.rs @@ -790,7 +790,7 @@ impl TryFrom> for TrackElem { } /// Invokes `f` on all direct fields of `ty`. -fn iter_fields<'tcx>( +pub fn iter_fields<'tcx>( ty: Ty<'tcx>, tcx: TyCtxt<'tcx>, mut f: impl FnMut(Option, Field, Ty<'tcx>), @@ -824,7 +824,7 @@ fn iter_fields<'tcx>( } /// Returns all locals with projections that have their reference or address taken. -fn excluded_locals(body: &Body<'_>) -> IndexVec { +pub fn excluded_locals(body: &Body<'_>) -> IndexVec { struct Collector { result: IndexVec, } diff --git a/compiler/rustc_mir_transform/src/check_unsafety.rs b/compiler/rustc_mir_transform/src/check_unsafety.rs index 8afa53313fc2..d00ee1f4babe 100644 --- a/compiler/rustc_mir_transform/src/check_unsafety.rs +++ b/compiler/rustc_mir_transform/src/check_unsafety.rs @@ -126,6 +126,7 @@ impl<'tcx> Visitor<'tcx> for UnsafetyChecker<'_, 'tcx> { } } &AggregateKind::Closure(def_id, _) | &AggregateKind::Generator(def_id, _, _) => { + let def_id = def_id.expect_local(); let UnsafetyCheckResult { violations, used_unsafe_blocks, .. } = self.tcx.unsafety_check_result(def_id); self.register_violations(violations, used_unsafe_blocks.iter().copied()); diff --git a/compiler/rustc_mir_transform/src/copy_prop.rs b/compiler/rustc_mir_transform/src/copy_prop.rs index 182b3015dd7d..4c7d45be0753 100644 --- a/compiler/rustc_mir_transform/src/copy_prop.rs +++ b/compiler/rustc_mir_transform/src/copy_prop.rs @@ -162,17 +162,20 @@ impl<'tcx> MutVisitor<'tcx> for Replacer<'_, 'tcx> { } fn visit_statement(&mut self, stmt: &mut Statement<'tcx>, loc: Location) { - if let StatementKind::StorageDead(l) = stmt.kind - && self.storage_to_remove.contains(l) - { - stmt.make_nop(); - } else if let StatementKind::Assign(box (ref place, ref mut rvalue)) = stmt.kind - && place.as_local().is_some() - { - // Do not replace assignments. - self.visit_rvalue(rvalue, loc) - } else { - self.super_statement(stmt, loc); + match stmt.kind { + // When removing storage statements, we need to remove both (#107511). + StatementKind::StorageLive(l) | StatementKind::StorageDead(l) + if self.storage_to_remove.contains(l) => + { + stmt.make_nop() + } + StatementKind::Assign(box (ref place, ref mut rvalue)) + if place.as_local().is_some() => + { + // Do not replace assignments. + self.visit_rvalue(rvalue, loc) + } + _ => self.super_statement(stmt, loc), } } } diff --git a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs index c75fe2327de3..949a59a97bfb 100644 --- a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs +++ b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs @@ -5,6 +5,7 @@ use rustc_const_eval::const_eval::CheckAlignment; use rustc_const_eval::interpret::{ConstValue, ImmTy, Immediate, InterpCx, Scalar}; use rustc_data_structures::fx::FxHashMap; +use rustc_hir::def::DefKind; use rustc_middle::mir::visit::{MutVisitor, Visitor}; use rustc_middle::mir::*; use rustc_middle::ty::{self, Ty, TyCtxt}; @@ -85,6 +86,30 @@ impl<'tcx> ValueAnalysis<'tcx> for ConstAnalysis<'tcx> { state: &mut State, ) { match rvalue { + Rvalue::Aggregate(kind, operands) => { + let target = self.map().find(target.as_ref()); + if let Some(target) = target { + state.flood_idx_with(target, self.map(), FlatSet::Bottom); + let field_based = match **kind { + AggregateKind::Tuple | AggregateKind::Closure(..) => true, + AggregateKind::Adt(def_id, ..) => { + matches!(self.tcx.def_kind(def_id), DefKind::Struct) + } + _ => false, + }; + if field_based { + for (field_index, operand) in operands.iter().enumerate() { + if let Some(field) = self + .map() + .apply(target, TrackElem::Field(Field::from_usize(field_index))) + { + let result = self.handle_operand(operand, state); + state.assign_idx(field, result, self.map()); + } + } + } + } + } Rvalue::CheckedBinaryOp(op, box (left, right)) => { let target = self.map().find(target.as_ref()); if let Some(target) = target { diff --git a/compiler/rustc_mir_transform/src/deaggregator.rs b/compiler/rustc_mir_transform/src/deaggregator.rs deleted file mode 100644 index fe272de20f8d..000000000000 --- a/compiler/rustc_mir_transform/src/deaggregator.rs +++ /dev/null @@ -1,45 +0,0 @@ -use crate::util::expand_aggregate; -use crate::MirPass; -use rustc_middle::mir::*; -use rustc_middle::ty::TyCtxt; - -pub struct Deaggregator; - -impl<'tcx> MirPass<'tcx> for Deaggregator { - fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { - let basic_blocks = body.basic_blocks.as_mut_preserves_cfg(); - for bb in basic_blocks { - bb.expand_statements(|stmt| { - // FIXME(eddyb) don't match twice on `stmt.kind` (post-NLL). - match stmt.kind { - // FIXME(#48193) Deaggregate arrays when it's cheaper to do so. - StatementKind::Assign(box ( - _, - Rvalue::Aggregate(box AggregateKind::Array(_), _), - )) => { - return None; - } - StatementKind::Assign(box (_, Rvalue::Aggregate(_, _))) => {} - _ => return None, - } - - let stmt = stmt.replace_nop(); - let source_info = stmt.source_info; - let StatementKind::Assign(box (lhs, Rvalue::Aggregate(kind, operands))) = stmt.kind else { - bug!(); - }; - - Some(expand_aggregate( - lhs, - operands.into_iter().map(|op| { - let ty = op.ty(&body.local_decls, tcx); - (op, ty) - }), - *kind, - source_info, - tcx, - )) - }); - } - } -} diff --git a/compiler/rustc_mir_transform/src/generator.rs b/compiler/rustc_mir_transform/src/generator.rs index 5624e312da1c..47f9d35a4f7e 100644 --- a/compiler/rustc_mir_transform/src/generator.rs +++ b/compiler/rustc_mir_transform/src/generator.rs @@ -52,7 +52,6 @@ use crate::deref_separator::deref_finder; use crate::simplify; -use crate::util::expand_aggregate; use crate::MirPass; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_errors::pluralize; @@ -272,31 +271,26 @@ impl<'tcx> TransformVisitor<'tcx> { assert_eq!(self.state_adt_ref.variant(idx).fields.len(), 0); // FIXME(swatinem): assert that `val` is indeed unit? - statements.extend(expand_aggregate( - Place::return_place(), - std::iter::empty(), - kind, + statements.push(Statement { + kind: StatementKind::Assign(Box::new(( + Place::return_place(), + Rvalue::Aggregate(Box::new(kind), vec![]), + ))), source_info, - self.tcx, - )); + }); return; } // else: `Poll::Ready(x)`, `GeneratorState::Yielded(x)` or `GeneratorState::Complete(x)` assert_eq!(self.state_adt_ref.variant(idx).fields.len(), 1); - let ty = self - .tcx - .bound_type_of(self.state_adt_ref.variant(idx).fields[0].did) - .subst(self.tcx, self.state_substs); - - statements.extend(expand_aggregate( - Place::return_place(), - std::iter::once((val, ty)), - kind, + statements.push(Statement { + kind: StatementKind::Assign(Box::new(( + Place::return_place(), + Rvalue::Aggregate(Box::new(kind), vec![val]), + ))), source_info, - self.tcx, - )); + }); } // Create a Place referencing a generator struct field diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs index 6815289776e9..9070a7368b16 100644 --- a/compiler/rustc_mir_transform/src/lib.rs +++ b/compiler/rustc_mir_transform/src/lib.rs @@ -60,7 +60,6 @@ mod coverage; mod ctfe_limit; mod dataflow_const_prop; mod dead_store_elimination; -mod deaggregator; mod deduce_param_attrs; mod deduplicate_blocks; mod deref_separator; @@ -523,9 +522,6 @@ fn run_runtime_lowering_passes<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { &elaborate_box_derefs::ElaborateBoxDerefs, &generator::StateTransform, &add_retag::AddRetag, - // Deaggregator is necessary for const prop. We may want to consider implementing - // CTFE support for aggregates. - &deaggregator::Deaggregator, &Lint(const_prop_lint::ConstProp), ]; pm::run_passes_no_validate(tcx, body, passes, Some(MirPhase::Runtime(RuntimePhase::Initial))); diff --git a/compiler/rustc_mir_transform/src/shim.rs b/compiler/rustc_mir_transform/src/shim.rs index e9ca6f7c93c4..551422386f6e 100644 --- a/compiler/rustc_mir_transform/src/shim.rs +++ b/compiler/rustc_mir_transform/src/shim.rs @@ -15,7 +15,6 @@ use rustc_target::spec::abi::Abi; use std::fmt; use std::iter; -use crate::util::expand_aggregate; use crate::{ abort_unwinding_calls, add_call_guards, add_moves_for_packed_drops, deref_separator, pass_manager as pm, remove_noop_landing_pads, simplify, @@ -831,19 +830,23 @@ pub fn build_adt_ctor(tcx: TyCtxt<'_>, ctor_id: DefId) -> Body<'_> { // return; debug!("build_ctor: variant_index={:?}", variant_index); - let statements = expand_aggregate( - Place::return_place(), - adt_def.variant(variant_index).fields.iter().enumerate().map(|(idx, field_def)| { - (Operand::Move(Place::from(Local::new(idx + 1))), field_def.ty(tcx, substs)) - }), - AggregateKind::Adt(adt_def.did(), variant_index, substs, None, None), + let kind = AggregateKind::Adt(adt_def.did(), variant_index, substs, None, None); + let variant = adt_def.variant(variant_index); + let statement = Statement { + kind: StatementKind::Assign(Box::new(( + Place::return_place(), + Rvalue::Aggregate( + Box::new(kind), + (0..variant.fields.len()) + .map(|idx| Operand::Move(Place::from(Local::new(idx + 1)))) + .collect(), + ), + ))), source_info, - tcx, - ) - .collect(); + }; let start_block = BasicBlockData { - statements, + statements: vec![statement], terminator: Some(Terminator { source_info, kind: TerminatorKind::Return }), is_cleanup: false, }; diff --git a/compiler/rustc_mir_transform/src/sroa.rs b/compiler/rustc_mir_transform/src/sroa.rs index 42124f5a4808..26acd406ed8a 100644 --- a/compiler/rustc_mir_transform/src/sroa.rs +++ b/compiler/rustc_mir_transform/src/sroa.rs @@ -1,10 +1,11 @@ use crate::MirPass; -use rustc_data_structures::fx::{FxIndexMap, IndexEntry}; use rustc_index::bit_set::BitSet; use rustc_index::vec::IndexVec; +use rustc_middle::mir::patch::MirPatch; use rustc_middle::mir::visit::*; use rustc_middle::mir::*; -use rustc_middle::ty::TyCtxt; +use rustc_middle::ty::{Ty, TyCtxt}; +use rustc_mir_dataflow::value_analysis::{excluded_locals, iter_fields}; pub struct ScalarReplacementOfAggregates; @@ -13,27 +14,41 @@ impl<'tcx> MirPass<'tcx> for ScalarReplacementOfAggregates { sess.mir_opt_level() >= 3 } + #[instrument(level = "debug", skip(self, tcx, body))] fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { - let escaping = escaping_locals(&*body); - debug!(?escaping); - let replacements = compute_flattening(tcx, body, escaping); - debug!(?replacements); - replace_flattened_locals(tcx, body, replacements); + debug!(def_id = ?body.source.def_id()); + let mut excluded = excluded_locals(body); + loop { + debug!(?excluded); + let escaping = escaping_locals(&excluded, body); + debug!(?escaping); + let replacements = compute_flattening(tcx, body, escaping); + debug!(?replacements); + let all_dead_locals = replace_flattened_locals(tcx, body, replacements); + if !all_dead_locals.is_empty() { + for local in excluded.indices() { + excluded[local] |= all_dead_locals.contains(local); + } + excluded.raw.resize(body.local_decls.len(), false); + } else { + break; + } + } } } /// Identify all locals that are not eligible for SROA. /// /// There are 3 cases: -/// - the aggegated local is used or passed to other code (function parameters and arguments); +/// - the aggregated local is used or passed to other code (function parameters and arguments); /// - the locals is a union or an enum; /// - the local's address is taken, and thus the relative addresses of the fields are observable to /// client code. -fn escaping_locals(body: &Body<'_>) -> BitSet { +fn escaping_locals(excluded: &IndexVec, body: &Body<'_>) -> BitSet { let mut set = BitSet::new_empty(body.local_decls.len()); set.insert_range(RETURN_PLACE..=Local::from_usize(body.arg_count)); for (local, decl) in body.local_decls().iter_enumerated() { - if decl.ty.is_union() || decl.ty.is_enum() { + if decl.ty.is_union() || decl.ty.is_enum() || excluded[local] { set.insert(local); } } @@ -58,41 +73,33 @@ fn escaping_locals(body: &Body<'_>) -> BitSet { self.super_place(place, context, location); } - fn visit_rvalue(&mut self, rvalue: &Rvalue<'tcx>, location: Location) { - if let Rvalue::AddressOf(.., place) | Rvalue::Ref(.., place) = rvalue { - if !place.is_indirect() { - // Raw pointers may be used to access anything inside the enclosing place. - self.set.insert(place.local); - return; + fn visit_assign( + &mut self, + lvalue: &Place<'tcx>, + rvalue: &Rvalue<'tcx>, + location: Location, + ) { + if lvalue.as_local().is_some() { + match rvalue { + // Aggregate assignments are expanded in run_pass. + Rvalue::Aggregate(..) | Rvalue::Use(..) => { + self.visit_rvalue(rvalue, location); + return; + } + _ => {} } } - self.super_rvalue(rvalue, location) + self.super_assign(lvalue, rvalue, location) } fn visit_statement(&mut self, statement: &Statement<'tcx>, location: Location) { - if let StatementKind::StorageLive(..) - | StatementKind::StorageDead(..) - | StatementKind::Deinit(..) = statement.kind - { + match statement.kind { // Storage statements are expanded in run_pass. - return; + StatementKind::StorageLive(..) + | StatementKind::StorageDead(..) + | StatementKind::Deinit(..) => return, + _ => self.super_statement(statement, location), } - self.super_statement(statement, location) - } - - fn visit_terminator(&mut self, terminator: &Terminator<'tcx>, location: Location) { - // Drop implicitly calls `drop_in_place`, which takes a `&mut`. - // This implies that `Drop` implicitly takes the address of the place. - if let TerminatorKind::Drop { place, .. } - | TerminatorKind::DropAndReplace { place, .. } = terminator.kind - { - if !place.is_indirect() { - // Raw pointers may be used to access anything inside the enclosing place. - self.set.insert(place.local); - return; - } - } - self.super_terminator(terminator, location); } // We ignore anything that happens in debuginfo, since we expand it using @@ -103,7 +110,30 @@ fn escaping_locals(body: &Body<'_>) -> BitSet { #[derive(Default, Debug)] struct ReplacementMap<'tcx> { - fields: FxIndexMap, Local>, + /// Pre-computed list of all "new" locals for each "old" local. This is used to expand storage + /// and deinit statement and debuginfo. + fragments: IndexVec, Local)>>>>, +} + +impl<'tcx> ReplacementMap<'tcx> { + fn replace_place(&self, tcx: TyCtxt<'tcx>, place: PlaceRef<'tcx>) -> Option> { + let &[PlaceElem::Field(f, _), ref rest @ ..] = place.projection else { return None; }; + let fields = self.fragments[place.local].as_ref()?; + let (_, new_local) = fields[f]?; + Some(Place { local: new_local, projection: tcx.intern_place_elems(&rest) }) + } + + fn place_fragments( + &self, + place: Place<'tcx>, + ) -> Option, Local)> + '_> { + let local = place.as_local()?; + let fields = self.fragments[local].as_ref()?; + Some(fields.iter_enumerated().filter_map(|(field, &opt_ty_local)| { + let (ty, local) = opt_ty_local?; + Some((field, ty, local)) + })) + } } /// Compute the replacement of flattened places into locals. @@ -115,53 +145,25 @@ fn compute_flattening<'tcx>( body: &mut Body<'tcx>, escaping: BitSet, ) -> ReplacementMap<'tcx> { - let mut visitor = PreFlattenVisitor { - tcx, - escaping, - local_decls: &mut body.local_decls, - map: Default::default(), - }; - for (block, bbdata) in body.basic_blocks.iter_enumerated() { - visitor.visit_basic_block_data(block, bbdata); - } - return visitor.map; + let mut fragments = IndexVec::from_elem(None, &body.local_decls); - struct PreFlattenVisitor<'tcx, 'll> { - tcx: TyCtxt<'tcx>, - local_decls: &'ll mut LocalDecls<'tcx>, - escaping: BitSet, - map: ReplacementMap<'tcx>, - } - - impl<'tcx, 'll> PreFlattenVisitor<'tcx, 'll> { - fn create_place(&mut self, place: PlaceRef<'tcx>) { - if self.escaping.contains(place.local) { + for local in body.local_decls.indices() { + if escaping.contains(local) { + continue; + } + let decl = body.local_decls[local].clone(); + let ty = decl.ty; + iter_fields(ty, tcx, |variant, field, field_ty| { + if variant.is_some() { + // Downcasts are currently not supported. return; - } - - match self.map.fields.entry(place) { - IndexEntry::Occupied(_) => {} - IndexEntry::Vacant(v) => { - let ty = place.ty(&*self.local_decls, self.tcx).ty; - let local = self.local_decls.push(LocalDecl { - ty, - user_ty: None, - ..self.local_decls[place.local].clone() - }); - v.insert(local); - } - } - } - } - - impl<'tcx, 'll> Visitor<'tcx> for PreFlattenVisitor<'tcx, 'll> { - fn visit_place(&mut self, place: &Place<'tcx>, _: PlaceContext, _: Location) { - if let &[PlaceElem::Field(..), ..] = &place.projection[..] { - let pr = PlaceRef { local: place.local, projection: &place.projection[..1] }; - self.create_place(pr) - } - } + }; + let new_local = + body.local_decls.push(LocalDecl { ty: field_ty, user_ty: None, ..decl.clone() }); + fragments.get_or_insert_with(local, IndexVec::new).insert(field, (field_ty, new_local)); + }); } + ReplacementMap { fragments } } /// Perform the replacement computed by `compute_flattening`. @@ -169,29 +171,24 @@ fn replace_flattened_locals<'tcx>( tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>, replacements: ReplacementMap<'tcx>, -) { +) -> BitSet { let mut all_dead_locals = BitSet::new_empty(body.local_decls.len()); - for p in replacements.fields.keys() { - all_dead_locals.insert(p.local); + for (local, replacements) in replacements.fragments.iter_enumerated() { + if replacements.is_some() { + all_dead_locals.insert(local); + } } debug!(?all_dead_locals); if all_dead_locals.is_empty() { - return; + return all_dead_locals; } - let mut fragments = IndexVec::new(); - for (k, v) in &replacements.fields { - fragments.ensure_contains_elem(k.local, || Vec::new()); - fragments[k.local].push((k.projection, *v)); - } - debug!(?fragments); - let mut visitor = ReplacementVisitor { tcx, local_decls: &body.local_decls, - replacements, + replacements: &replacements, all_dead_locals, - fragments, + patch: MirPatch::new(body), }; for (bb, data) in body.basic_blocks.as_mut_preserves_cfg().iter_enumerated_mut() { visitor.visit_basic_block_data(bb, data); @@ -205,6 +202,9 @@ fn replace_flattened_locals<'tcx>( for var_debug_info in &mut body.var_debug_info { visitor.visit_var_debug_info(var_debug_info); } + let ReplacementVisitor { patch, all_dead_locals, .. } = visitor; + patch.apply(body); + all_dead_locals } struct ReplacementVisitor<'tcx, 'll> { @@ -212,40 +212,23 @@ struct ReplacementVisitor<'tcx, 'll> { /// This is only used to compute the type for `VarDebugInfoContents::Composite`. local_decls: &'ll LocalDecls<'tcx>, /// Work to do. - replacements: ReplacementMap<'tcx>, + replacements: &'ll ReplacementMap<'tcx>, /// This is used to check that we are not leaving references to replaced locals behind. all_dead_locals: BitSet, - /// Pre-computed list of all "new" locals for each "old" local. This is used to expand storage - /// and deinit statement and debuginfo. - fragments: IndexVec], Local)>>, + patch: MirPatch<'tcx>, } -impl<'tcx, 'll> ReplacementVisitor<'tcx, 'll> { - fn gather_debug_info_fragments( - &self, - place: PlaceRef<'tcx>, - ) -> Vec> { +impl<'tcx> ReplacementVisitor<'tcx, '_> { + fn gather_debug_info_fragments(&self, local: Local) -> Option>> { let mut fragments = Vec::new(); - let parts = &self.fragments[place.local]; - for (proj, replacement_local) in parts { - if proj.starts_with(place.projection) { - fragments.push(VarDebugInfoFragment { - projection: proj[place.projection.len()..].to_vec(), - contents: Place::from(*replacement_local), - }); - } - } - fragments - } - - fn replace_place(&self, place: PlaceRef<'tcx>) -> Option> { - if let &[PlaceElem::Field(..), ref rest @ ..] = place.projection { - let pr = PlaceRef { local: place.local, projection: &place.projection[..1] }; - let local = self.replacements.fields.get(&pr)?; - Some(Place { local: *local, projection: self.tcx.intern_place_elems(&rest) }) - } else { - None + let parts = self.replacements.place_fragments(local.into())?; + for (field, ty, replacement_local) in parts { + fragments.push(VarDebugInfoFragment { + projection: vec![PlaceElem::Field(field, ty)], + contents: Place::from(replacement_local), + }); } + Some(fragments) } } @@ -254,94 +237,186 @@ impl<'tcx, 'll> MutVisitor<'tcx> for ReplacementVisitor<'tcx, 'll> { self.tcx } - fn visit_statement(&mut self, statement: &mut Statement<'tcx>, location: Location) { - if let StatementKind::StorageLive(..) - | StatementKind::StorageDead(..) - | StatementKind::Deinit(..) = statement.kind - { - // Storage statements are expanded in run_pass. - return; - } - self.super_statement(statement, location) - } - fn visit_place(&mut self, place: &mut Place<'tcx>, context: PlaceContext, location: Location) { - if let Some(repl) = self.replace_place(place.as_ref()) { + if let Some(repl) = self.replacements.replace_place(self.tcx, place.as_ref()) { *place = repl } else { self.super_place(place, context, location) } } + #[instrument(level = "trace", skip(self))] + fn visit_statement(&mut self, statement: &mut Statement<'tcx>, location: Location) { + match statement.kind { + // Duplicate storage and deinit statements, as they pretty much apply to all fields. + StatementKind::StorageLive(l) => { + if let Some(final_locals) = self.replacements.place_fragments(l.into()) { + for (_, _, fl) in final_locals { + self.patch.add_statement(location, StatementKind::StorageLive(fl)); + } + statement.make_nop(); + } + return; + } + StatementKind::StorageDead(l) => { + if let Some(final_locals) = self.replacements.place_fragments(l.into()) { + for (_, _, fl) in final_locals { + self.patch.add_statement(location, StatementKind::StorageDead(fl)); + } + statement.make_nop(); + } + return; + } + StatementKind::Deinit(box place) => { + if let Some(final_locals) = self.replacements.place_fragments(place) { + for (_, _, fl) in final_locals { + self.patch + .add_statement(location, StatementKind::Deinit(Box::new(fl.into()))); + } + statement.make_nop(); + return; + } + } + + // We have `a = Struct { 0: x, 1: y, .. }`. + // We replace it by + // ``` + // a_0 = x + // a_1 = y + // ... + // ``` + StatementKind::Assign(box (place, Rvalue::Aggregate(_, ref mut operands))) => { + if let Some(local) = place.as_local() + && let Some(final_locals) = &self.replacements.fragments[local] + { + // This is ok as we delete the statement later. + let operands = std::mem::take(operands); + for (&opt_ty_local, mut operand) in final_locals.iter().zip(operands) { + if let Some((_, new_local)) = opt_ty_local { + // Replace mentions of SROA'd locals that appear in the operand. + self.visit_operand(&mut operand, location); + + let rvalue = Rvalue::Use(operand); + self.patch.add_statement( + location, + StatementKind::Assign(Box::new((new_local.into(), rvalue))), + ); + } + } + statement.make_nop(); + return; + } + } + + // We have `a = some constant` + // We add the projections. + // ``` + // a_0 = a.0 + // a_1 = a.1 + // ... + // ``` + // ConstProp will pick up the pieces and replace them by actual constants. + StatementKind::Assign(box (place, Rvalue::Use(Operand::Constant(_)))) => { + if let Some(final_locals) = self.replacements.place_fragments(place) { + for (field, ty, new_local) in final_locals { + let rplace = self.tcx.mk_place_field(place, field, ty); + let rvalue = Rvalue::Use(Operand::Move(rplace)); + self.patch.add_statement( + location, + StatementKind::Assign(Box::new((new_local.into(), rvalue))), + ); + } + // We still need `place.local` to exist, so don't make it nop. + return; + } + } + + // We have `a = move? place` + // We replace it by + // ``` + // a_0 = move? place.0 + // a_1 = move? place.1 + // ... + // ``` + StatementKind::Assign(box (lhs, Rvalue::Use(ref op))) => { + let (rplace, copy) = match *op { + Operand::Copy(rplace) => (rplace, true), + Operand::Move(rplace) => (rplace, false), + Operand::Constant(_) => bug!(), + }; + if let Some(final_locals) = self.replacements.place_fragments(lhs) { + for (field, ty, new_local) in final_locals { + let rplace = self.tcx.mk_place_field(rplace, field, ty); + debug!(?rplace); + let rplace = self + .replacements + .replace_place(self.tcx, rplace.as_ref()) + .unwrap_or(rplace); + debug!(?rplace); + let rvalue = if copy { + Rvalue::Use(Operand::Copy(rplace)) + } else { + Rvalue::Use(Operand::Move(rplace)) + }; + self.patch.add_statement( + location, + StatementKind::Assign(Box::new((new_local.into(), rvalue))), + ); + } + statement.make_nop(); + return; + } + } + + _ => {} + } + self.super_statement(statement, location) + } + + #[instrument(level = "trace", skip(self))] fn visit_var_debug_info(&mut self, var_debug_info: &mut VarDebugInfo<'tcx>) { match &mut var_debug_info.value { VarDebugInfoContents::Place(ref mut place) => { - if let Some(repl) = self.replace_place(place.as_ref()) { + if let Some(repl) = self.replacements.replace_place(self.tcx, place.as_ref()) { *place = repl; - } else if self.all_dead_locals.contains(place.local) { + } else if let Some(local) = place.as_local() + && let Some(fragments) = self.gather_debug_info_fragments(local) + { let ty = place.ty(self.local_decls, self.tcx).ty; - let fragments = self.gather_debug_info_fragments(place.as_ref()); var_debug_info.value = VarDebugInfoContents::Composite { ty, fragments }; } } VarDebugInfoContents::Composite { ty: _, ref mut fragments } => { let mut new_fragments = Vec::new(); + debug!(?fragments); fragments .drain_filter(|fragment| { - if let Some(repl) = self.replace_place(fragment.contents.as_ref()) { + if let Some(repl) = + self.replacements.replace_place(self.tcx, fragment.contents.as_ref()) + { fragment.contents = repl; - true - } else if self.all_dead_locals.contains(fragment.contents.local) { - let frg = self.gather_debug_info_fragments(fragment.contents.as_ref()); + false + } else if let Some(local) = fragment.contents.as_local() + && let Some(frg) = self.gather_debug_info_fragments(local) + { new_fragments.extend(frg.into_iter().map(|mut f| { f.projection.splice(0..0, fragment.projection.iter().copied()); f })); - false - } else { true + } else { + false } }) .for_each(drop); + debug!(?fragments); + debug!(?new_fragments); fragments.extend(new_fragments); } VarDebugInfoContents::Const(_) => {} } } - fn visit_basic_block_data(&mut self, bb: BasicBlock, bbdata: &mut BasicBlockData<'tcx>) { - self.super_basic_block_data(bb, bbdata); - - #[derive(Debug)] - enum Stmt { - StorageLive, - StorageDead, - Deinit, - } - - bbdata.expand_statements(|stmt| { - let source_info = stmt.source_info; - let (stmt, origin_local) = match &stmt.kind { - StatementKind::StorageLive(l) => (Stmt::StorageLive, *l), - StatementKind::StorageDead(l) => (Stmt::StorageDead, *l), - StatementKind::Deinit(p) if let Some(l) = p.as_local() => (Stmt::Deinit, l), - _ => return None, - }; - if !self.all_dead_locals.contains(origin_local) { - return None; - } - let final_locals = self.fragments.get(origin_local)?; - Some(final_locals.iter().map(move |&(_, l)| { - let kind = match stmt { - Stmt::StorageLive => StatementKind::StorageLive(l), - Stmt::StorageDead => StatementKind::StorageDead(l), - Stmt::Deinit => StatementKind::Deinit(Box::new(l.into())), - }; - Statement { source_info, kind } - })) - }); - } - fn visit_local(&mut self, local: &mut Local, _: PlaceContext, _: Location) { assert!(!self.all_dead_locals.contains(*local)); } diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs index 145611923ff1..0c11e0026900 100644 --- a/compiler/rustc_parse/src/errors.rs +++ b/compiler/rustc_parse/src/errors.rs @@ -1,3 +1,5 @@ +use std::borrow::Cow; + use rustc_ast::token::Token; use rustc_ast::{Path, Visibility}; use rustc_errors::{fluent, AddToDiagnostic, Applicability, EmissionGuarantee, IntoDiagnostic}; @@ -431,6 +433,18 @@ pub(crate) enum MissingInInForLoopSub { AddIn(#[primary_span] Span), } +#[derive(Diagnostic)] +#[diag(parse_missing_expression_in_for_loop)] +pub(crate) struct MissingExpressionInForLoop { + #[primary_span] + #[suggestion( + code = "/* expression */ ", + applicability = "has-placeholders", + style = "verbose" + )] + pub span: Span, +} + #[derive(Diagnostic)] #[diag(parse_missing_comma_after_match_arm)] pub(crate) struct MissingCommaAfterMatchArm { @@ -668,13 +682,10 @@ pub(crate) struct InclusiveRangeExtraEquals { #[diag(parse_inclusive_range_match_arrow)] pub(crate) struct InclusiveRangeMatchArrow { #[primary_span] + pub arrow: Span, + #[label] pub span: Span, - #[suggestion( - suggestion_add_space, - style = "verbose", - code = " ", - applicability = "machine-applicable" - )] + #[suggestion(style = "verbose", code = " ", applicability = "machine-applicable")] pub after_pat: Span, } @@ -1590,6 +1601,14 @@ pub(crate) struct UnexpectedSelfInGenericParameters { pub span: Span, } +#[derive(Diagnostic)] +#[diag(parse_unexpected_default_value_for_lifetime_in_generic_parameters)] +pub(crate) struct UnexpectedDefaultValueForLifetimeInGenericParameters { + #[primary_span] + #[label] + pub span: Span, +} + #[derive(Diagnostic)] #[diag(parse_multiple_where_clauses)] pub(crate) struct MultipleWhereClauses { @@ -1802,8 +1821,9 @@ pub(crate) struct EnumPatternInsteadOfIdentifier { #[diag(parse_dot_dot_dot_for_remaining_fields)] pub(crate) struct DotDotDotForRemainingFields { #[primary_span] - #[suggestion(code = "..", applicability = "machine-applicable")] + #[suggestion(code = "..", style = "verbose", applicability = "machine-applicable")] pub span: Span, + pub token_str: Cow<'static, str>, } #[derive(Diagnostic)] diff --git a/compiler/rustc_parse/src/parser/attr_wrapper.rs b/compiler/rustc_parse/src/parser/attr_wrapper.rs index b97f22417cb7..dbd3b76786f4 100644 --- a/compiler/rustc_parse/src/parser/attr_wrapper.rs +++ b/compiler/rustc_parse/src/parser/attr_wrapper.rs @@ -469,6 +469,6 @@ mod size_asserts { use rustc_data_structures::static_assert_size; // tidy-alphabetical-start static_assert_size!(AttrWrapper, 16); - static_assert_size!(LazyAttrTokenStreamImpl, 144); + static_assert_size!(LazyAttrTokenStreamImpl, 120); // tidy-alphabetical-end } diff --git a/compiler/rustc_parse/src/parser/diagnostics.rs b/compiler/rustc_parse/src/parser/diagnostics.rs index 26274822ed8a..cd9d85b1d919 100644 --- a/compiler/rustc_parse/src/parser/diagnostics.rs +++ b/compiler/rustc_parse/src/parser/diagnostics.rs @@ -2394,7 +2394,7 @@ impl<'a> Parser<'a> { /// Some special error handling for the "top-level" patterns in a match arm, /// `for` loop, `let`, &c. (in contrast to subpatterns within such). - pub(crate) fn maybe_recover_colon_colon_in_pat_typo_or_anon_enum( + pub(crate) fn maybe_recover_colon_colon_in_pat_typo( &mut self, mut first_pat: P, expected: Option, @@ -2435,8 +2435,9 @@ impl<'a> Parser<'a> { // Create error for "unexpected `:`". match self.expected_one_of_not_found(&[], &[]) { Err(mut err) => { - snapshot_pat.bump(); // Skip the `:`. - snapshot_type.bump(); // Skip the `:`. + // Skip the `:`. + snapshot_pat.bump(); + snapshot_type.bump(); match snapshot_pat.parse_pat_no_top_alt(expected) { Err(inner_err) => { inner_err.cancel(); diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index b7a023868fce..c37808f8c3d1 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -5,26 +5,7 @@ use super::{ AttrWrapper, BlockMode, ClosureSpans, ForceCollect, Parser, PathStyle, Restrictions, SemiColonMode, SeqSep, TokenExpectType, TokenType, TrailingToken, }; -use crate::errors::{ - ArrayBracketsInsteadOfSpaces, ArrayBracketsInsteadOfSpacesSugg, AsyncBlockIn2015, - AsyncMoveOrderIncorrect, BracesForStructLiteral, CatchAfterTry, CommaAfterBaseStruct, - ComparisonInterpretedAsGeneric, ComparisonOrShiftInterpretedAsGenericSugg, - DoCatchSyntaxRemoved, DotDotDot, EqFieldInit, ExpectedElseBlock, ExpectedEqForLetExpr, - ExpectedExpressionFoundLet, FieldExpressionWithGeneric, FloatLiteralRequiresIntegerPart, - FoundExprWouldBeStmt, HelpUseLatestEdition, IfExpressionLetSomeSub, - IfExpressionMissingCondition, IfExpressionMissingThenBlock, IfExpressionMissingThenBlockSub, - InvalidBlockMacroSegment, InvalidComparisonOperator, InvalidComparisonOperatorSub, - InvalidInterpolatedExpression, InvalidLiteralSuffixOnTupleIndex, InvalidLogicalOperator, - InvalidLogicalOperatorSub, LabeledLoopInBreak, LeadingPlusNotSupported, LeftArrowOperator, - LifetimeInBorrowExpression, MacroInvocationWithQualifiedPath, MalformedLoopLabel, - MatchArmBodyWithoutBraces, MatchArmBodyWithoutBracesSugg, MissingCommaAfterMatchArm, - MissingDotDot, MissingInInForLoop, MissingInInForLoopSub, MissingSemicolonBeforeArray, - NoFieldsForFnCall, NotAsNegationOperator, NotAsNegationOperatorSub, - OuterAttributeNotAllowedOnIfElse, ParenthesesWithStructFields, - RequireColonAfterLabeledExpression, ShiftInterpretedAsGeneric, StructLiteralNotAllowedHere, - StructLiteralNotAllowedHereSugg, TildeAsUnaryOperator, UnexpectedIfWithIf, - UnexpectedTokenAfterLabel, UnexpectedTokenAfterLabelSugg, WrapExpressionInParentheses, -}; +use crate::errors; use crate::maybe_recover_from_interpolated_ty_qpath; use core::mem; use rustc_ast::ptr::P; @@ -244,10 +225,10 @@ impl<'a> Parser<'a> { } .into(); let invalid = format!("{}=", &sugg); - self.sess.emit_err(InvalidComparisonOperator { + self.sess.emit_err(errors::InvalidComparisonOperator { span: sp, invalid: invalid.clone(), - sub: InvalidComparisonOperatorSub::Correctable { + sub: errors::InvalidComparisonOperatorSub::Correctable { span: sp, invalid, correct: sugg, @@ -262,10 +243,10 @@ impl<'a> Parser<'a> { && self.prev_token.span.hi() == self.token.span.lo() { let sp = op.span.to(self.token.span); - self.sess.emit_err(InvalidComparisonOperator { + self.sess.emit_err(errors::InvalidComparisonOperator { span: sp, invalid: "<>".into(), - sub: InvalidComparisonOperatorSub::Correctable { + sub: errors::InvalidComparisonOperatorSub::Correctable { span: sp, invalid: "<>".into(), correct: "!=".into(), @@ -280,10 +261,10 @@ impl<'a> Parser<'a> { && self.prev_token.span.hi() == self.token.span.lo() { let sp = op.span.to(self.token.span); - self.sess.emit_err(InvalidComparisonOperator { + self.sess.emit_err(errors::InvalidComparisonOperator { span: sp, invalid: "<=>".into(), - sub: InvalidComparisonOperatorSub::Spaceship(sp), + sub: errors::InvalidComparisonOperatorSub::Spaceship(sp), }); self.bump(); } @@ -420,7 +401,7 @@ impl<'a> Parser<'a> { /// but the next token implies this should be parsed as an expression. /// For example: `if let Some(x) = x { x } else { 0 } / 2`. fn error_found_expr_would_be_stmt(&self, lhs: &Expr) { - self.sess.emit_err(FoundExprWouldBeStmt { + self.sess.emit_err(errors::FoundExprWouldBeStmt { span: self.token.span, token: self.token.clone(), suggestion: ExprParenthesesNeeded::surrounding(lhs.span), @@ -447,18 +428,18 @@ impl<'a> Parser<'a> { } (Some(op), _) => (op, self.token.span), (None, Some((Ident { name: sym::and, span }, false))) if self.may_recover() => { - self.sess.emit_err(InvalidLogicalOperator { + self.sess.emit_err(errors::InvalidLogicalOperator { span: self.token.span, incorrect: "and".into(), - sub: InvalidLogicalOperatorSub::Conjunction(self.token.span), + sub: errors::InvalidLogicalOperatorSub::Conjunction(self.token.span), }); (AssocOp::LAnd, span) } (None, Some((Ident { name: sym::or, span }, false))) if self.may_recover() => { - self.sess.emit_err(InvalidLogicalOperator { + self.sess.emit_err(errors::InvalidLogicalOperator { span: self.token.span, incorrect: "or".into(), - sub: InvalidLogicalOperatorSub::Disjunction(self.token.span), + sub: errors::InvalidLogicalOperatorSub::Disjunction(self.token.span), }); (AssocOp::LOr, span) } @@ -581,8 +562,11 @@ impl<'a> Parser<'a> { } // `+lit` token::BinOp(token::Plus) if this.look_ahead(1, |tok| tok.is_numeric_lit()) => { - let mut err = - LeadingPlusNotSupported { span: lo, remove_plus: None, add_parentheses: None }; + let mut err = errors::LeadingPlusNotSupported { + span: lo, + remove_plus: None, + add_parentheses: None, + }; // a block on the LHS might have been intended to be an expression instead if let Some(sp) = this.sess.ambiguous_block_expr_parse.borrow().get(&lo) { @@ -633,7 +617,7 @@ impl<'a> Parser<'a> { /// Recover on `~expr` in favor of `!expr`. fn recover_tilde_expr(&mut self, lo: Span) -> PResult<'a, (Span, ExprKind)> { - self.sess.emit_err(TildeAsUnaryOperator(lo)); + self.sess.emit_err(errors::TildeAsUnaryOperator(lo)); self.parse_unary_expr(lo, UnOp::Not) } @@ -661,14 +645,14 @@ impl<'a> Parser<'a> { let negated_token = self.look_ahead(1, |t| t.clone()); let sub_diag = if negated_token.is_numeric_lit() { - NotAsNegationOperatorSub::SuggestNotBitwise + errors::NotAsNegationOperatorSub::SuggestNotBitwise } else if negated_token.is_bool_lit() { - NotAsNegationOperatorSub::SuggestNotLogical + errors::NotAsNegationOperatorSub::SuggestNotLogical } else { - NotAsNegationOperatorSub::SuggestNotDefault + errors::NotAsNegationOperatorSub::SuggestNotDefault }; - self.sess.emit_err(NotAsNegationOperator { + self.sess.emit_err(errors::NotAsNegationOperator { negated: negated_token.span, negated_desc: super::token_descr(&negated_token), // Span the `not` plus trailing whitespace to avoid @@ -739,7 +723,7 @@ impl<'a> Parser<'a> { match self.parse_labeled_expr(label, false) { Ok(expr) => { type_err.cancel(); - self.sess.emit_err(MalformedLoopLabel { + self.sess.emit_err(errors::MalformedLoopLabel { span: label.ident.span, correct_label: label.ident, }); @@ -764,20 +748,22 @@ impl<'a> Parser<'a> { ); let args_span = self.look_ahead(1, |t| t.span).to(span_after_type); - let suggestion = ComparisonOrShiftInterpretedAsGenericSugg { + let suggestion = errors::ComparisonOrShiftInterpretedAsGenericSugg { left: expr.span.shrink_to_lo(), right: expr.span.shrink_to_hi(), }; match self.token.kind { - token::Lt => self.sess.emit_err(ComparisonInterpretedAsGeneric { - comparison: self.token.span, - r#type: path, - args: args_span, - suggestion, - }), + token::Lt => { + self.sess.emit_err(errors::ComparisonInterpretedAsGeneric { + comparison: self.token.span, + r#type: path, + args: args_span, + suggestion, + }) + } token::BinOp(token::Shl) => { - self.sess.emit_err(ShiftInterpretedAsGeneric { + self.sess.emit_err(errors::ShiftInterpretedAsGeneric { shift: self.token.span, r#type: path, args: args_span, @@ -918,7 +904,7 @@ impl<'a> Parser<'a> { } fn error_remove_borrow_lifetime(&self, span: Span, lt_span: Span) { - self.sess.emit_err(LifetimeInBorrowExpression { span, lifetime_span: lt_span }); + self.sess.emit_err(errors::LifetimeInBorrowExpression { span, lifetime_span: lt_span }); } /// Parse `mut?` or `raw [ const | mut ]`. @@ -1212,14 +1198,14 @@ impl<'a> Parser<'a> { let close_paren = self.prev_token.span; let span = lo.to(self.prev_token.span); if !fields.is_empty() { - let mut replacement_err = ParenthesesWithStructFields { + let mut replacement_err = errors::ParenthesesWithStructFields { span, r#type: path, - braces_for_struct: BracesForStructLiteral { + braces_for_struct: errors::BracesForStructLiteral { first: open_paren, second: close_paren, }, - no_fields_for_fn: NoFieldsForFnCall { + no_fields_for_fn: errors::NoFieldsForFnCall { fields: fields .into_iter() .map(|field| field.span.until(field.expr.span)) @@ -1286,7 +1272,7 @@ impl<'a> Parser<'a> { } else { // Field access `expr.f` if let Some(args) = seg.args { - self.sess.emit_err(FieldExpressionWithGeneric(args.span())); + self.sess.emit_err(errors::FieldExpressionWithGeneric(args.span())); } let span = lo.to(self.prev_token.span); @@ -1500,7 +1486,7 @@ impl<'a> Parser<'a> { let (span, kind) = if self.eat(&token::Not) { // MACRO INVOCATION expression if qself.is_some() { - self.sess.emit_err(MacroInvocationWithQualifiedPath(path.span)); + self.sess.emit_err(errors::MacroInvocationWithQualifiedPath(path.span)); } let lo = path.span; let mac = P(MacCall { @@ -1550,7 +1536,7 @@ impl<'a> Parser<'a> { { let (lit, _) = self.recover_unclosed_char(label_.ident, Parser::mk_token_lit_char, |self_| { - self_.sess.create_err(UnexpectedTokenAfterLabel { + self_.sess.create_err(errors::UnexpectedTokenAfterLabel { span: self_.token.span, remove_label: None, enclose_in_block: None, @@ -1562,7 +1548,7 @@ impl<'a> Parser<'a> { && (self.check_noexpect(&TokenKind::Comma) || self.check_noexpect(&TokenKind::Gt)) { // We're probably inside of a `Path<'a>` that needs a turbofish - self.sess.emit_err(UnexpectedTokenAfterLabel { + self.sess.emit_err(errors::UnexpectedTokenAfterLabel { span: self.token.span, remove_label: None, enclose_in_block: None, @@ -1570,7 +1556,7 @@ impl<'a> Parser<'a> { consume_colon = false; Ok(self.mk_expr_err(lo)) } else { - let mut err = UnexpectedTokenAfterLabel { + let mut err = errors::UnexpectedTokenAfterLabel { span: self.token.span, remove_label: None, enclose_in_block: None, @@ -1606,7 +1592,7 @@ impl<'a> Parser<'a> { return expr; } - err.enclose_in_block = Some(UnexpectedTokenAfterLabelSugg { + err.enclose_in_block = Some(errors::UnexpectedTokenAfterLabelSugg { left: span.shrink_to_lo(), right: span.shrink_to_hi(), }); @@ -1622,7 +1608,7 @@ impl<'a> Parser<'a> { }?; if !ate_colon && consume_colon { - self.sess.emit_err(RequireColonAfterLabeledExpression { + self.sess.emit_err(errors::RequireColonAfterLabeledExpression { span: expr.span, label: lo, label_end: lo.shrink_to_hi(), @@ -1671,7 +1657,7 @@ impl<'a> Parser<'a> { self.bump(); // `catch` let span = lo.to(self.prev_token.span); - self.sess.emit_err(DoCatchSyntaxRemoved { span }); + self.sess.emit_err(errors::DoCatchSyntaxRemoved { span }); self.parse_try_block(lo) } @@ -1719,9 +1705,9 @@ impl<'a> Parser<'a> { // The value expression can be a labeled loop, see issue #86948, e.g.: // `loop { break 'label: loop { break 'label 42; }; }` let lexpr = self.parse_labeled_expr(label, true)?; - self.sess.emit_err(LabeledLoopInBreak { + self.sess.emit_err(errors::LabeledLoopInBreak { span: lexpr.span, - sub: WrapExpressionInParentheses { + sub: errors::WrapExpressionInParentheses { left: lexpr.span.shrink_to_lo(), right: lexpr.span.shrink_to_hi(), }, @@ -1841,7 +1827,7 @@ impl<'a> Parser<'a> { }; if let Some(expr) = expr { if matches!(expr.kind, ExprKind::Err) { - let mut err = InvalidInterpolatedExpression { span: self.token.span } + let mut err = errors::InvalidInterpolatedExpression { span: self.token.span } .into_diagnostic(&self.sess.span_diagnostic); err.downgrade_to_delayed_bug(); return Err(err); @@ -1902,7 +1888,7 @@ impl<'a> Parser<'a> { }); if let Some(token) = &recovered { self.bump(); - self.sess.emit_err(FloatLiteralRequiresIntegerPart { + self.sess.emit_err(errors::FloatLiteralRequiresIntegerPart { span: token.span, correct: pprust::token_to_string(token).into_owned(), }); @@ -1963,13 +1949,17 @@ impl<'a> Parser<'a> { if [sym::i32, sym::u32, sym::isize, sym::usize].contains(&suffix) { // #59553: warn instead of reject out of hand to allow the fix to percolate // through the ecosystem when people fix their macros - self.sess.emit_warning(InvalidLiteralSuffixOnTupleIndex { + self.sess.emit_warning(errors::InvalidLiteralSuffixOnTupleIndex { span, suffix, exception: Some(()), }); } else { - self.sess.emit_err(InvalidLiteralSuffixOnTupleIndex { span, suffix, exception: None }); + self.sess.emit_err(errors::InvalidLiteralSuffixOnTupleIndex { + span, + suffix, + exception: None, + }); } } @@ -2003,9 +1993,9 @@ impl<'a> Parser<'a> { let mut snapshot = self.create_snapshot_for_diagnostic(); match snapshot.parse_array_or_repeat_expr(Delimiter::Brace) { Ok(arr) => { - self.sess.emit_err(ArrayBracketsInsteadOfSpaces { + self.sess.emit_err(errors::ArrayBracketsInsteadOfSpaces { span: arr.span, - sub: ArrayBracketsInsteadOfSpacesSugg { + sub: errors::ArrayBracketsInsteadOfSpacesSugg { left: lo, right: snapshot.prev_token.span, }, @@ -2051,7 +2041,7 @@ impl<'a> Parser<'a> { .span_to_snippet(snapshot.token.span) .map_or(false, |snippet| snippet == "]") => { - return Err(MissingSemicolonBeforeArray { + return Err(errors::MissingSemicolonBeforeArray { open_delim: open_delim_span, semicolon: prev_span.shrink_to_hi(), }.into_diagnostic(&self.sess.span_diagnostic)); @@ -2077,7 +2067,7 @@ impl<'a> Parser<'a> { } if self.token.is_whole_block() { - self.sess.emit_err(InvalidBlockMacroSegment { + self.sess.emit_err(errors::InvalidBlockMacroSegment { span: self.token.span, context: lo.to(self.token.span), }); @@ -2109,7 +2099,7 @@ impl<'a> Parser<'a> { ClosureBinder::NotPresent }; - let constness = self.parse_constness(Case::Sensitive); + let constness = self.parse_closure_constness(Case::Sensitive); let movability = if self.eat_keyword(kw::Static) { Movability::Static } else { Movability::Movable }; @@ -2141,7 +2131,7 @@ impl<'a> Parser<'a> { } if self.token.kind == TokenKind::Semi - && matches!(self.token_cursor.frame.delim_sp, Some((Delimiter::Parenthesis, _))) + && matches!(self.token_cursor.stack.last(), Some((_, Delimiter::Parenthesis, _))) && self.may_recover() { // It is likely that the closure body is a block but where the @@ -2181,7 +2171,7 @@ impl<'a> Parser<'a> { // Check for `move async` and recover if self.check_keyword(kw::Async) { let move_async_span = self.token.span.with_lo(self.prev_token.span.data().lo); - Err(AsyncMoveOrderIncorrect { span: move_async_span } + Err(errors::AsyncMoveOrderIncorrect { span: move_async_span } .into_diagnostic(&self.sess.span_diagnostic)) } else { Ok(CaptureBy::Value) @@ -2259,17 +2249,17 @@ impl<'a> Parser<'a> { let block = match &mut cond.kind { ExprKind::Binary(Spanned { span: binop_span, .. }, _, right) if let ExprKind::Block(_, None) = right.kind => { - self.sess.emit_err(IfExpressionMissingThenBlock { + self.sess.emit_err(errors::IfExpressionMissingThenBlock { if_span: lo, missing_then_block_sub: - IfExpressionMissingThenBlockSub::UnfinishedCondition(cond_span.shrink_to_lo().to(*binop_span)), + errors::IfExpressionMissingThenBlockSub::UnfinishedCondition(cond_span.shrink_to_lo().to(*binop_span)), let_else_sub: None, }); std::mem::replace(right, this.mk_expr_err(binop_span.shrink_to_hi())) }, ExprKind::Block(_, None) => { - self.sess.emit_err(IfExpressionMissingCondition { + self.sess.emit_err(errors::IfExpressionMissingCondition { if_span: lo.shrink_to_hi(), block_span: self.sess.source_map().start_point(cond_span), }); @@ -2291,11 +2281,11 @@ impl<'a> Parser<'a> { block } else { let let_else_sub = matches!(cond.kind, ExprKind::Let(..)) - .then(|| IfExpressionLetSomeSub { if_span: lo.until(cond_span) }); + .then(|| errors::IfExpressionLetSomeSub { if_span: lo.until(cond_span) }); - self.sess.emit_err(IfExpressionMissingThenBlock { + self.sess.emit_err(errors::IfExpressionMissingThenBlock { if_span: lo, - missing_then_block_sub: IfExpressionMissingThenBlockSub::AddThenBlock( + missing_then_block_sub: errors::IfExpressionMissingThenBlockSub::AddThenBlock( cond_span.shrink_to_hi(), ), let_else_sub, @@ -2351,7 +2341,7 @@ impl<'a> Parser<'a> { TokenKind::AndAnd | TokenKind::Ident(kw::If, _) | TokenKind::Ident(kw::While, _) ); if !self.restrictions.contains(Restrictions::ALLOW_LET) || not_in_chain { - self.sess.emit_err(ExpectedExpressionFoundLet { span: self.token.span }); + self.sess.emit_err(errors::ExpectedExpressionFoundLet { span: self.token.span }); } self.bump(); // Eat `let` token @@ -2363,7 +2353,7 @@ impl<'a> Parser<'a> { CommaRecoveryMode::LikelyTuple, )?; if self.token == token::EqEq { - self.sess.emit_err(ExpectedEqForLetExpr { + self.sess.emit_err(errors::ExpectedEqForLetExpr { span: self.token.span, sugg_span: self.token.span, }); @@ -2398,7 +2388,7 @@ impl<'a> Parser<'a> { if self.check(&TokenKind::OpenDelim(Delimiter::Brace)) && classify::expr_requires_semi_to_be_stmt(&cond) => { - self.sess.emit_err(ExpectedElseBlock { + self.sess.emit_err(errors::ExpectedElseBlock { first_tok_span, first_tok, else_span, @@ -2438,7 +2428,7 @@ impl<'a> Parser<'a> { [x0 @ xn] | [x0, .., xn] => (x0.span.to(xn.span), xn.span), }; let ctx = if is_ctx_else { "else" } else { "if" }; - self.sess.emit_err(OuterAttributeNotAllowedOnIfElse { + self.sess.emit_err(errors::OuterAttributeNotAllowedOnIfElse { last, branch_span, ctx_span, @@ -2451,7 +2441,7 @@ impl<'a> Parser<'a> { if let ExprKind::Binary(Spanned { span: binop_span, node: binop}, _, right) = &cond.kind && let BinOpKind::And = binop && let ExprKind::If(cond, ..) = &right.kind { - Err(self.sess.create_err(UnexpectedIfWithIf(binop_span.shrink_to_hi().to(cond.span.shrink_to_lo())))) + Err(self.sess.create_err(errors::UnexpectedIfWithIf(binop_span.shrink_to_hi().to(cond.span.shrink_to_lo())))) } else { Ok(()) } @@ -2481,6 +2471,21 @@ impl<'a> Parser<'a> { let pat = self.recover_parens_around_for_head(pat, begin_paren); + // Recover from missing expression in `for` loop + if matches!(expr.kind, ExprKind::Block(..)) + && !matches!(self.token.kind, token::OpenDelim(token::Delimiter::Brace)) + && self.may_recover() + { + self.sess + .emit_err(errors::MissingExpressionInForLoop { span: expr.span.shrink_to_lo() }); + let err_expr = self.mk_expr(expr.span, ExprKind::Err); + let block = self.mk_block(vec![], BlockCheckMode::Default, self.prev_token.span); + return Ok(self.mk_expr( + lo.to(self.prev_token.span), + ExprKind::ForLoop(pat, err_expr, block, opt_label), + )); + } + let (attrs, loop_block) = self.parse_inner_attrs_and_block()?; let kind = ExprKind::ForLoop(pat, expr, loop_block, opt_label); @@ -2492,12 +2497,12 @@ impl<'a> Parser<'a> { // Possibly using JS syntax (#75311). let span = self.token.span; self.bump(); - (span, MissingInInForLoopSub::InNotOf) + (span, errors::MissingInInForLoopSub::InNotOf) } else { - (self.prev_token.span.between(self.token.span), MissingInInForLoopSub::AddIn) + (self.prev_token.span.between(self.token.span), errors::MissingInInForLoopSub::AddIn) }; - self.sess.emit_err(MissingInInForLoop { span, sub: sub(span) }); + self.sess.emit_err(errors::MissingInInForLoop { span, sub: sub(span) }); } /// Parses a `while` or `while let` expression (`while` token already eaten). @@ -2601,17 +2606,17 @@ impl<'a> Parser<'a> { let err = |this: &Parser<'_>, stmts: Vec| { let span = stmts[0].span.to(stmts[stmts.len() - 1].span); - this.sess.emit_err(MatchArmBodyWithoutBraces { + this.sess.emit_err(errors::MatchArmBodyWithoutBraces { statements: span, arrow: arrow_span, num_statements: stmts.len(), sub: if stmts.len() > 1 { - MatchArmBodyWithoutBracesSugg::AddBraces { + errors::MatchArmBodyWithoutBracesSugg::AddBraces { left: span.shrink_to_lo(), right: span.shrink_to_hi(), } } else { - MatchArmBodyWithoutBracesSugg::UseComma { semicolon: semi_sp } + errors::MatchArmBodyWithoutBracesSugg::UseComma { semicolon: semi_sp } }, }); this.mk_expr_err(span) @@ -2717,6 +2722,14 @@ impl<'a> Parser<'a> { ); err.emit(); this.bump(); + } else if matches!( + (&this.prev_token.kind, &this.token.kind), + (token::DotDotEq, token::Gt) + ) { + // `error_inclusive_range_match_arrow` handles cases like `0..=> {}`, + // so we supress the error here + err.delay_as_bug(); + this.bump(); } else { return Err(err); } @@ -2794,7 +2807,7 @@ impl<'a> Parser<'a> { .is_ok(); if pattern_follows && snapshot.check(&TokenKind::FatArrow) { err.cancel(); - this.sess.emit_err(MissingCommaAfterMatchArm { + this.sess.emit_err(errors::MissingCommaAfterMatchArm { span: hi.shrink_to_hi(), }); return Ok(true); @@ -2826,7 +2839,7 @@ impl<'a> Parser<'a> { fn parse_try_block(&mut self, span_lo: Span) -> PResult<'a, P> { let (attrs, body) = self.parse_inner_attrs_and_block()?; if self.eat_keyword(kw::Catch) { - Err(CatchAfterTry { span: self.prev_token.span } + Err(errors::CatchAfterTry { span: self.prev_token.span } .into_diagnostic(&self.sess.span_diagnostic)) } else { let span = span_lo.to(body.span); @@ -2902,9 +2915,9 @@ impl<'a> Parser<'a> { let expr = self.parse_struct_expr(qself.clone(), path.clone(), true); if let (Ok(expr), false) = (&expr, struct_allowed) { // This is a struct literal, but we don't can't accept them here. - self.sess.emit_err(StructLiteralNotAllowedHere { + self.sess.emit_err(errors::StructLiteralNotAllowedHere { span: expr.span, - sub: StructLiteralNotAllowedHereSugg { + sub: errors::StructLiteralNotAllowedHereSugg { left: path.span.shrink_to_lo(), right: expr.span.shrink_to_hi(), }, @@ -2927,8 +2940,8 @@ impl<'a> Parser<'a> { let mut async_block_err = |e: &mut Diagnostic, span: Span| { recover_async = true; - AsyncBlockIn2015 { span }.add_to_diagnostic(e); - HelpUseLatestEdition::new().add_to_diagnostic(e); + errors::AsyncBlockIn2015 { span }.add_to_diagnostic(e); + errors::HelpUseLatestEdition::new().add_to_diagnostic(e); }; while self.token != token::CloseDelim(close_delim) { @@ -3072,7 +3085,7 @@ impl<'a> Parser<'a> { if self.token != token::Comma { return; } - self.sess.emit_err(CommaAfterBaseStruct { + self.sess.emit_err(errors::CommaAfterBaseStruct { span: span.to(self.prev_token.span), comma: self.token.span, }); @@ -3085,7 +3098,7 @@ impl<'a> Parser<'a> { { // recover from typo of `...`, suggest `..` let span = self.prev_token.span; - self.sess.emit_err(MissingDotDot { token_span: span, sugg_span: span }); + self.sess.emit_err(errors::MissingDotDot { token_span: span, sugg_span: span }); return true; } false @@ -3153,18 +3166,18 @@ impl<'a> Parser<'a> { return; } - self.sess.emit_err(EqFieldInit { + self.sess.emit_err(errors::EqFieldInit { span: self.token.span, eq: field_name.span.shrink_to_hi().to(self.token.span), }); } fn err_dotdotdot_syntax(&self, span: Span) { - self.sess.emit_err(DotDotDot { span }); + self.sess.emit_err(errors::DotDotDot { span }); } fn err_larrow_operator(&self, span: Span) { - self.sess.emit_err(LeftArrowOperator { span }); + self.sess.emit_err(errors::LeftArrowOperator { span }); } fn mk_assign_op(&self, binop: BinOp, lhs: P, rhs: P) -> ExprKind { diff --git a/compiler/rustc_parse/src/parser/generics.rs b/compiler/rustc_parse/src/parser/generics.rs index 585dfc518b32..23f49ec55a18 100644 --- a/compiler/rustc_parse/src/parser/generics.rs +++ b/compiler/rustc_parse/src/parser/generics.rs @@ -1,5 +1,6 @@ use crate::errors::{ - MultipleWhereClauses, UnexpectedSelfInGenericParameters, WhereClauseBeforeTupleStructBody, + MultipleWhereClauses, UnexpectedDefaultValueForLifetimeInGenericParameters, + UnexpectedSelfInGenericParameters, WhereClauseBeforeTupleStructBody, WhereClauseBeforeTupleStructBodySugg, }; @@ -145,6 +146,20 @@ impl<'a> Parser<'a> { } else { (None, Vec::new()) }; + + if this.check_noexpect(&token::Eq) + && this.look_ahead(1, |t| t.is_lifetime()) + { + let lo = this.token.span; + // Parse `= 'lifetime`. + this.bump(); // `=` + this.bump(); // `'lifetime` + let span = lo.to(this.prev_token.span); + this.sess.emit_err( + UnexpectedDefaultValueForLifetimeInGenericParameters { span }, + ); + } + Some(ast::GenericParam { ident: lifetime.ident, id: lifetime.id, diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs index 81fd084ccb38..628e9d88cf1d 100644 --- a/compiler/rustc_parse/src/parser/item.rs +++ b/compiler/rustc_parse/src/parser/item.rs @@ -2247,7 +2247,7 @@ impl<'a> Parser<'a> { let ext = self.parse_extern(case); if let Async::Yes { span, .. } = asyncness { - if span.rust_2015() { + if span.is_rust_2015() { self.sess.emit_err(AsyncFnIn2015 { span, help: HelpUseLatestEdition::new() }); } } diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index ffb23b50a160..0cb88f3c3a91 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -19,9 +19,8 @@ pub use path::PathStyle; use rustc_ast::ptr::P; use rustc_ast::token::{self, Delimiter, Nonterminal, Token, TokenKind}; -use rustc_ast::tokenstream::AttributesData; -use rustc_ast::tokenstream::{self, DelimSpan, Spacing}; -use rustc_ast::tokenstream::{TokenStream, TokenTree}; +use rustc_ast::tokenstream::{AttributesData, DelimSpan, Spacing}; +use rustc_ast::tokenstream::{TokenStream, TokenTree, TokenTreeCursor}; use rustc_ast::util::case::Case; use rustc_ast::AttrId; use rustc_ast::DUMMY_NODE_ID; @@ -168,7 +167,7 @@ pub struct Parser<'a> { // This type is used a lot, e.g. it's cloned when matching many declarative macro rules with nonterminals. Make sure // it doesn't unintentionally get bigger. #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))] -rustc_data_structures::static_assert_size!(Parser<'_>, 336); +rustc_data_structures::static_assert_size!(Parser<'_>, 312); /// Stores span information about a closure. #[derive(Clone)] @@ -221,18 +220,27 @@ impl<'a> Drop for Parser<'a> { } } +/// Iterator over a `TokenStream` that produces `Token`s. It's a bit odd that +/// we (a) lex tokens into a nice tree structure (`TokenStream`), and then (b) +/// use this type to emit them as a linear sequence. But a linear sequence is +/// what the parser expects, for the most part. #[derive(Clone)] struct TokenCursor { - // The current (innermost) frame. `frame` and `stack` could be combined, - // but it's faster to have them separately to access `frame` directly - // rather than via something like `stack.last().unwrap()` or - // `stack[stack.len() - 1]`. - frame: TokenCursorFrame, - // Additional frames that enclose `frame`. - stack: Vec, + // Cursor for the current (innermost) token stream. The delimiters for this + // token stream are found in `self.stack.last()`; when that is `None` then + // we are in the outermost token stream which never has delimiters. + tree_cursor: TokenTreeCursor, + + // Token streams surrounding the current one. The delimiters for stack[n]'s + // tokens are in `stack[n-1]`. `stack[0]` (when present) has no delimiters + // because it's the outermost token stream which never has delimiters. + stack: Vec<(TokenTreeCursor, Delimiter, DelimSpan)>, + desugar_doc_comments: bool, + // Counts the number of calls to `{,inlined_}next`. num_next_calls: usize, + // During parsing, we may sometimes need to 'unglue' a // glued token into two component tokens // (e.g. '>>' into '>' and '>), so that the parser @@ -257,18 +265,6 @@ struct TokenCursor { break_last_token: bool, } -#[derive(Clone)] -struct TokenCursorFrame { - delim_sp: Option<(Delimiter, DelimSpan)>, - tree_cursor: tokenstream::Cursor, -} - -impl TokenCursorFrame { - fn new(delim_sp: Option<(Delimiter, DelimSpan)>, tts: TokenStream) -> Self { - TokenCursorFrame { delim_sp, tree_cursor: tts.into_trees() } - } -} - impl TokenCursor { fn next(&mut self, desugar_doc_comments: bool) -> (Token, Spacing) { self.inlined_next(desugar_doc_comments) @@ -281,38 +277,47 @@ impl TokenCursor { // FIXME: we currently don't return `Delimiter` open/close delims. To fix #67062 we will // need to, whereupon the `delim != Delimiter::Invisible` conditions below can be // removed. - if let Some(tree) = self.frame.tree_cursor.next_ref() { + if let Some(tree) = self.tree_cursor.next_ref() { match tree { &TokenTree::Token(ref token, spacing) => match (desugar_doc_comments, token) { (true, &Token { kind: token::DocComment(_, attr_style, data), span }) => { - return self.desugar(attr_style, data, span); + let desugared = self.desugar(attr_style, data, span); + self.tree_cursor.replace_prev_and_rewind(desugared); + // Continue to get the first token of the desugared doc comment. + } + _ => { + debug_assert!(!matches!( + token.kind, + token::OpenDelim(_) | token::CloseDelim(_) + )); + return (token.clone(), spacing); } - _ => return (token.clone(), spacing), }, &TokenTree::Delimited(sp, delim, ref tts) => { - // Set `open_delim` to true here because we deal with it immediately. - let frame = TokenCursorFrame::new(Some((delim, sp)), tts.clone()); - self.stack.push(mem::replace(&mut self.frame, frame)); + let trees = tts.clone().into_trees(); + self.stack.push((mem::replace(&mut self.tree_cursor, trees), delim, sp)); if delim != Delimiter::Invisible { return (Token::new(token::OpenDelim(delim), sp.open), Spacing::Alone); } // No open delimiter to return; continue on to the next iteration. } }; - } else if let Some(frame) = self.stack.pop() { - if let Some((delim, span)) = self.frame.delim_sp && delim != Delimiter::Invisible { - self.frame = frame; + } else if let Some((tree_cursor, delim, span)) = self.stack.pop() { + // We have exhausted this token stream. Move back to its parent token stream. + self.tree_cursor = tree_cursor; + if delim != Delimiter::Invisible { return (Token::new(token::CloseDelim(delim), span.close), Spacing::Alone); } - self.frame = frame; // No close delimiter to return; continue on to the next iteration. } else { + // We have exhausted the outermost token stream. return (Token::new(token::Eof, DUMMY_SP), Spacing::Alone); } } } - fn desugar(&mut self, attr_style: AttrStyle, data: Symbol, span: Span) -> (Token, Spacing) { + // Desugar a doc comment into something like `#[doc = r"foo"]`. + fn desugar(&mut self, attr_style: AttrStyle, data: Symbol, span: Span) -> Vec { // Searches for the occurrences of `"#*` and returns the minimum number of `#`s // required to wrap the text. E.g. // - `abc d` is wrapped as `r"abc d"` (num_of_hashes = 0) @@ -346,27 +351,15 @@ impl TokenCursor { .collect::(), ); - self.stack.push(mem::replace( - &mut self.frame, - TokenCursorFrame::new( - None, - if attr_style == AttrStyle::Inner { - [ - TokenTree::token_alone(token::Pound, span), - TokenTree::token_alone(token::Not, span), - body, - ] - .into_iter() - .collect::() - } else { - [TokenTree::token_alone(token::Pound, span), body] - .into_iter() - .collect::() - }, - ), - )); - - self.next(/* desugar_doc_comments */ false) + if attr_style == AttrStyle::Inner { + vec![ + TokenTree::token_alone(token::Pound, span), + TokenTree::token_alone(token::Not, span), + body, + ] + } else { + vec![TokenTree::token_alone(token::Pound, span), body] + } } } @@ -475,7 +468,7 @@ impl<'a> Parser<'a> { restrictions: Restrictions::empty(), expected_tokens: Vec::new(), token_cursor: TokenCursor { - frame: TokenCursorFrame::new(None, tokens), + tree_cursor: tokens.into_trees(), stack: Vec::new(), num_next_calls: 0, desugar_doc_comments, @@ -739,9 +732,10 @@ impl<'a> Parser<'a> { fn check_const_closure(&self) -> bool { self.is_keyword_ahead(0, &[kw::Const]) && self.look_ahead(1, |t| match &t.kind { - token::Ident(kw::Move | kw::Static | kw::Async, _) - | token::OrOr - | token::BinOp(token::Or) => true, + // async closures do not work with const closures, so we do not parse that here. + token::Ident(kw::Move | kw::Static, _) | token::OrOr | token::BinOp(token::Or) => { + true + } _ => false, }) } @@ -1142,14 +1136,16 @@ impl<'a> Parser<'a> { return looker(&self.token); } - let frame = &self.token_cursor.frame; - if let Some((delim, span)) = frame.delim_sp && delim != Delimiter::Invisible { + let tree_cursor = &self.token_cursor.tree_cursor; + if let Some(&(_, delim, span)) = self.token_cursor.stack.last() + && delim != Delimiter::Invisible + { let all_normal = (0..dist).all(|i| { - let token = frame.tree_cursor.look_ahead(i); + let token = tree_cursor.look_ahead(i); !matches!(token, Some(TokenTree::Delimited(_, Delimiter::Invisible, _))) }); if all_normal { - return match frame.tree_cursor.look_ahead(dist - 1) { + return match tree_cursor.look_ahead(dist - 1) { Some(tree) => match tree { TokenTree::Token(token, _) => looker(token), TokenTree::Delimited(dspan, delim, _) => { @@ -1203,8 +1199,18 @@ impl<'a> Parser<'a> { /// Parses constness: `const` or nothing. fn parse_constness(&mut self, case: Case) -> Const { - // Avoid const blocks to be parsed as const items - if self.look_ahead(1, |t| t != &token::OpenDelim(Delimiter::Brace)) + self.parse_constness_(case, false) + } + + /// Parses constness for closures + fn parse_closure_constness(&mut self, case: Case) -> Const { + self.parse_constness_(case, true) + } + + fn parse_constness_(&mut self, case: Case, is_closure: bool) -> Const { + // Avoid const blocks and const closures to be parsed as const items + if (self.check_const_closure() == is_closure) + && self.look_ahead(1, |t| t != &token::OpenDelim(Delimiter::Brace)) && self.eat_keyword_case(kw::Const, case) { Const::Yes(self.prev_token.uninterpolated_span()) @@ -1310,10 +1316,10 @@ impl<'a> Parser<'a> { pub(crate) fn parse_token_tree(&mut self) -> TokenTree { match self.token.kind { token::OpenDelim(..) => { - // Grab the tokens from this frame. - let frame = &self.token_cursor.frame; - let stream = frame.tree_cursor.stream.clone(); - let (delim, span) = frame.delim_sp.unwrap(); + // Grab the tokens within the delimiters. + let tree_cursor = &self.token_cursor.tree_cursor; + let stream = tree_cursor.stream.clone(); + let (_, delim, span) = *self.token_cursor.stack.last().unwrap(); // Advance the token cursor through the entire delimited // sequence. After getting the `OpenDelim` we are *within* the diff --git a/compiler/rustc_parse/src/parser/pat.rs b/compiler/rustc_parse/src/parser/pat.rs index 88c75fd81e75..b054dc59a0c9 100644 --- a/compiler/rustc_parse/src/parser/pat.rs +++ b/compiler/rustc_parse/src/parser/pat.rs @@ -148,8 +148,7 @@ impl<'a> Parser<'a> { // Check if the user wrote `foo:bar` instead of `foo::bar`. if ra == RecoverColon::Yes { - first_pat = - self.maybe_recover_colon_colon_in_pat_typo_or_anon_enum(first_pat, expected); + first_pat = self.maybe_recover_colon_colon_in_pat_typo(first_pat, expected); } if let Some(leading_vert_span) = leading_vert_span { @@ -744,7 +743,7 @@ impl<'a> Parser<'a> { } token::Gt if no_space => { let after_pat = span.with_hi(span.hi() - rustc_span::BytePos(1)).shrink_to_hi(); - self.sess.emit_err(InclusiveRangeMatchArrow { span, after_pat }); + self.sess.emit_err(InclusiveRangeMatchArrow { span, arrow: tok.span, after_pat }); } _ => { self.sess.emit_err(InclusiveRangeNoEnd { span }); @@ -963,12 +962,15 @@ impl<'a> Parser<'a> { } ate_comma = false; - if self.check(&token::DotDot) || self.token == token::DotDotDot { + if self.check(&token::DotDot) + || self.check_noexpect(&token::DotDotDot) + || self.check_keyword(kw::Underscore) + { etc = true; let mut etc_sp = self.token.span; - self.recover_one_fewer_dotdot(); - self.bump(); // `..` || `...` + self.recover_bad_dot_dot(); + self.bump(); // `..` || `...` || `_` if self.token == token::CloseDelim(Delimiter::Brace) { etc_span = Some(etc_sp); @@ -1061,14 +1063,15 @@ impl<'a> Parser<'a> { Ok((fields, etc)) } - /// Recover on `...` as if it were `..` to avoid further errors. + /// Recover on `...` or `_` as if it were `..` to avoid further errors. /// See issue #46718. - fn recover_one_fewer_dotdot(&self) { - if self.token != token::DotDotDot { + fn recover_bad_dot_dot(&self) { + if self.token == token::DotDot { return; } - self.sess.emit_err(DotDotDotForRemainingFields { span: self.token.span }); + let token_str = pprust::token_to_string(&self.token); + self.sess.emit_err(DotDotDotForRemainingFields { span: self.token.span, token_str }); } fn parse_pat_field(&mut self, lo: Span, attrs: AttrVec) -> PResult<'a, PatField> { diff --git a/compiler/rustc_parse/src/parser/stmt.rs b/compiler/rustc_parse/src/parser/stmt.rs index 647639b9b62b..3afda5f69f0e 100644 --- a/compiler/rustc_parse/src/parser/stmt.rs +++ b/compiler/rustc_parse/src/parser/stmt.rs @@ -7,12 +7,7 @@ use super::TrailingToken; use super::{ AttrWrapper, BlockMode, FnParseMode, ForceCollect, Parser, Restrictions, SemiColonMode, }; -use crate::errors::{ - AssignmentElseNotAllowed, CompoundAssignmentExpressionInLet, ConstLetMutuallyExclusive, - DocCommentDoesNotDocumentAnything, ExpectedStatementAfterOuterAttr, InvalidCurlyInLetElse, - InvalidExpressionInLetElse, InvalidIdentiferStartsWithNumber, InvalidVariableDeclaration, - InvalidVariableDeclarationSub, WrapExpressionInParentheses, -}; +use crate::errors; use crate::maybe_whole; use rustc_ast as ast; @@ -64,29 +59,33 @@ impl<'a> Parser<'a> { if self.token.is_keyword(kw::Mut) && self.is_keyword_ahead(1, &[kw::Let]) { self.bump(); let mut_let_span = lo.to(self.token.span); - self.sess.emit_err(InvalidVariableDeclaration { + self.sess.emit_err(errors::InvalidVariableDeclaration { span: mut_let_span, - sub: InvalidVariableDeclarationSub::SwitchMutLetOrder(mut_let_span), + sub: errors::InvalidVariableDeclarationSub::SwitchMutLetOrder(mut_let_span), }); } Ok(Some(if self.token.is_keyword(kw::Let) { self.parse_local_mk(lo, attrs, capture_semi, force_collect)? } else if self.is_kw_followed_by_ident(kw::Mut) && self.may_recover() { - self.recover_stmt_local_after_let(lo, attrs, InvalidVariableDeclarationSub::MissingLet)? + self.recover_stmt_local_after_let( + lo, + attrs, + errors::InvalidVariableDeclarationSub::MissingLet, + )? } else if self.is_kw_followed_by_ident(kw::Auto) && self.may_recover() { self.bump(); // `auto` self.recover_stmt_local_after_let( lo, attrs, - InvalidVariableDeclarationSub::UseLetNotAuto, + errors::InvalidVariableDeclarationSub::UseLetNotAuto, )? } else if self.is_kw_followed_by_ident(sym::var) && self.may_recover() { self.bump(); // `var` self.recover_stmt_local_after_let( lo, attrs, - InvalidVariableDeclarationSub::UseLetNotVar, + errors::InvalidVariableDeclarationSub::UseLetNotVar, )? } else if self.check_path() && !self.token.is_qpath_start() && !self.is_path_start_item() { // We have avoided contextual keywords like `union`, items with `crate` visibility, @@ -124,7 +123,7 @@ impl<'a> Parser<'a> { let bl = self.parse_block()?; // Destructuring assignment ... else. // This is not allowed, but point it out in a nice way. - self.sess.emit_err(AssignmentElseNotAllowed { span: e.span.to(bl.span) }); + self.sess.emit_err(errors::AssignmentElseNotAllowed { span: e.span.to(bl.span) }); } self.mk_stmt(lo.to(e.span), StmtKind::Expr(e)) } else { @@ -217,12 +216,12 @@ impl<'a> Parser<'a> { && let attrs = attrs.take_for_recovery(self.sess) && let attrs @ [.., last] = &*attrs { if last.is_doc_comment() { - self.sess.emit_err(DocCommentDoesNotDocumentAnything { + self.sess.emit_err(errors::DocCommentDoesNotDocumentAnything { span: last.span, missing_comma: None, }); } else if attrs.iter().any(|a| a.style == AttrStyle::Outer) { - self.sess.emit_err(ExpectedStatementAfterOuterAttr { span: last.span }); + self.sess.emit_err(errors::ExpectedStatementAfterOuterAttr { span: last.span }); } } } @@ -231,7 +230,7 @@ impl<'a> Parser<'a> { &mut self, lo: Span, attrs: AttrWrapper, - subdiagnostic: fn(Span) -> InvalidVariableDeclarationSub, + subdiagnostic: fn(Span) -> errors::InvalidVariableDeclarationSub, ) -> PResult<'a, Stmt> { let stmt = self.collect_tokens_trailing_token(attrs, ForceCollect::Yes, |this, attrs| { @@ -242,7 +241,7 @@ impl<'a> Parser<'a> { TrailingToken::None, )) })?; - self.sess.emit_err(InvalidVariableDeclaration { span: lo, sub: subdiagnostic(lo) }); + self.sess.emit_err(errors::InvalidVariableDeclaration { span: lo, sub: subdiagnostic(lo) }); Ok(stmt) } @@ -270,7 +269,7 @@ impl<'a> Parser<'a> { let lo = self.prev_token.span; if self.token.is_keyword(kw::Const) && self.look_ahead(1, |t| t.is_ident()) { - self.sess.emit_err(ConstLetMutuallyExclusive { span: lo.to(self.token.span) }); + self.sess.emit_err(errors::ConstLetMutuallyExclusive { span: lo.to(self.token.span) }); self.bump(); } @@ -373,7 +372,7 @@ impl<'a> Parser<'a> { rustc_ast::MetaItemLit::from_token(&self.token).is_none() && (lit.kind == token::LitKind::Integer || lit.kind == token::LitKind::Float) && self.look_ahead(1, |t| matches!(t.kind, token::Eq) || matches!(t.kind, token::Colon ) ) { - return Err(self.sess.create_err(InvalidIdentiferStartsWithNumber { span: self.token.span })); + return Err(self.sess.create_err(errors::InvalidIdentiferStartsWithNumber { span: self.token.span })); } Ok(()) } @@ -381,10 +380,10 @@ impl<'a> Parser<'a> { fn check_let_else_init_bool_expr(&self, init: &ast::Expr) { if let ast::ExprKind::Binary(op, ..) = init.kind { if op.node.lazy() { - self.sess.emit_err(InvalidExpressionInLetElse { + self.sess.emit_err(errors::InvalidExpressionInLetElse { span: init.span, operator: op.node.to_string(), - sugg: WrapExpressionInParentheses { + sugg: errors::WrapExpressionInParentheses { left: init.span.shrink_to_lo(), right: init.span.shrink_to_hi(), }, @@ -395,9 +394,9 @@ impl<'a> Parser<'a> { fn check_let_else_init_trailing_brace(&self, init: &ast::Expr) { if let Some(trailing) = classify::expr_trailing_brace(init) { - self.sess.emit_err(InvalidCurlyInLetElse { + self.sess.emit_err(errors::InvalidCurlyInLetElse { span: trailing.span.with_lo(trailing.span.hi() - BytePos(1)), - sugg: WrapExpressionInParentheses { + sugg: errors::WrapExpressionInParentheses { left: trailing.span.shrink_to_lo(), right: trailing.span.shrink_to_hi(), }, @@ -410,7 +409,8 @@ impl<'a> Parser<'a> { let eq_consumed = match self.token.kind { token::BinOpEq(..) => { // Recover `let x = 1` as `let x = 1` - self.sess.emit_err(CompoundAssignmentExpressionInLet { span: self.token.span }); + self.sess + .emit_err(errors::CompoundAssignmentExpressionInLet { span: self.token.span }); self.bump(); true } diff --git a/compiler/rustc_parse/src/parser/ty.rs b/compiler/rustc_parse/src/parser/ty.rs index 306cbcff149f..a19ea04fa5e7 100644 --- a/compiler/rustc_parse/src/parser/ty.rs +++ b/compiler/rustc_parse/src/parser/ty.rs @@ -17,7 +17,6 @@ use rustc_ast::{ self as ast, BareFnTy, FnRetTy, GenericBound, GenericBounds, GenericParam, Generics, Lifetime, MacCall, MutTy, Mutability, PolyTraitRef, TraitBoundModifier, TraitObjectSyntax, Ty, TyKind, }; -use rustc_ast_pretty::pprust; use rustc_errors::{Applicability, PResult}; use rustc_span::source_map::Span; use rustc_span::symbol::{kw, sym, Ident}; @@ -50,24 +49,17 @@ pub(super) enum AllowPlus { No, } -#[derive(PartialEq, Clone, Copy)] +#[derive(PartialEq)] pub(super) enum RecoverQPath { Yes, No, } -#[derive(PartialEq, Clone, Copy)] pub(super) enum RecoverQuestionMark { Yes, No, } -#[derive(PartialEq, Clone, Copy)] -pub(super) enum RecoverAnonEnum { - Yes, - No, -} - /// Signals whether parsing a type should recover `->`. /// /// More specifically, when parsing a function like: @@ -100,7 +92,7 @@ impl RecoverReturnSign { } // Is `...` (`CVarArgs`) legal at this level of type parsing? -#[derive(PartialEq, Clone, Copy)] +#[derive(PartialEq)] enum AllowCVariadic { Yes, No, @@ -125,7 +117,6 @@ impl<'a> Parser<'a> { RecoverReturnSign::Yes, None, RecoverQuestionMark::Yes, - RecoverAnonEnum::No, ) } @@ -140,7 +131,6 @@ impl<'a> Parser<'a> { RecoverReturnSign::Yes, Some(ty_params), RecoverQuestionMark::Yes, - RecoverAnonEnum::No, ) } @@ -155,7 +145,6 @@ impl<'a> Parser<'a> { RecoverReturnSign::Yes, None, RecoverQuestionMark::Yes, - RecoverAnonEnum::Yes, ) } @@ -173,7 +162,6 @@ impl<'a> Parser<'a> { RecoverReturnSign::Yes, None, RecoverQuestionMark::Yes, - RecoverAnonEnum::No, ) } @@ -187,7 +175,6 @@ impl<'a> Parser<'a> { RecoverReturnSign::Yes, None, RecoverQuestionMark::No, - RecoverAnonEnum::No, ) } @@ -199,7 +186,6 @@ impl<'a> Parser<'a> { RecoverReturnSign::Yes, None, RecoverQuestionMark::No, - RecoverAnonEnum::No, ) } @@ -212,7 +198,6 @@ impl<'a> Parser<'a> { RecoverReturnSign::OnlyFatArrow, None, RecoverQuestionMark::Yes, - RecoverAnonEnum::No, ) } @@ -232,7 +217,6 @@ impl<'a> Parser<'a> { recover_return_sign, None, RecoverQuestionMark::Yes, - RecoverAnonEnum::Yes, )?; FnRetTy::Ty(ty) } else if recover_return_sign.can_recover(&self.token.kind) { @@ -247,7 +231,6 @@ impl<'a> Parser<'a> { recover_return_sign, None, RecoverQuestionMark::Yes, - RecoverAnonEnum::Yes, )?; FnRetTy::Ty(ty) } else { @@ -263,7 +246,6 @@ impl<'a> Parser<'a> { recover_return_sign: RecoverReturnSign, ty_generics: Option<&Generics>, recover_question_mark: RecoverQuestionMark, - recover_anon_enum: RecoverAnonEnum, ) -> PResult<'a, P> { let allow_qpath_recovery = recover_qpath == RecoverQPath::Yes; maybe_recover_from_interpolated_ty_qpath!(self, allow_qpath_recovery); @@ -347,50 +329,9 @@ impl<'a> Parser<'a> { AllowPlus::Yes => self.maybe_recover_from_bad_type_plus(&ty)?, AllowPlus::No => self.maybe_report_ambiguous_plus(impl_dyn_multi, &ty), } - if RecoverQuestionMark::Yes == recover_question_mark { + if let RecoverQuestionMark::Yes = recover_question_mark { ty = self.maybe_recover_from_question_mark(ty); } - if recover_anon_enum == RecoverAnonEnum::Yes - && self.check_noexpect(&token::BinOp(token::Or)) - && self.look_ahead(1, |t| t.can_begin_type()) - { - let mut pipes = vec![self.token.span]; - let mut types = vec![ty]; - loop { - if !self.eat(&token::BinOp(token::Or)) { - break; - } - pipes.push(self.prev_token.span); - types.push(self.parse_ty_common( - allow_plus, - allow_c_variadic, - recover_qpath, - recover_return_sign, - ty_generics, - recover_question_mark, - RecoverAnonEnum::No, - )?); - } - let mut err = self.struct_span_err(pipes, "anonymous enums are not supported"); - for ty in &types { - err.span_label(ty.span, ""); - } - err.help(&format!( - "create a named `enum` and use it here instead:\nenum Name {{\n{}\n}}", - types - .iter() - .enumerate() - .map(|(i, t)| format!( - " Variant{}({}),", - i + 1, // Lets not confuse people with zero-indexing :) - pprust::to_string(|s| s.print_type(&t)), - )) - .collect::>() - .join("\n"), - )); - err.emit(); - return Ok(self.mk_ty(lo.to(self.prev_token.span), TyKind::Err)); - } if allow_qpath_recovery { self.maybe_recover_from_bad_qpath(ty) } else { Ok(ty) } } @@ -673,7 +614,7 @@ impl<'a> Parser<'a> { /// Is a `dyn B0 + ... + Bn` type allowed here? fn is_explicit_dyn_type(&mut self) -> bool { self.check_keyword(kw::Dyn) - && (!self.token.uninterpolated_span().rust_2015() + && (self.token.uninterpolated_span().rust_2018() || self.look_ahead(1, |t| { (t.can_begin_bound() || t.kind == TokenKind::BinOp(token::Star)) && !can_continue_type_after_non_fn_ident(t) diff --git a/compiler/rustc_parse_format/src/lib.rs b/compiler/rustc_parse_format/src/lib.rs index a6dfcd297624..088a87ca5710 100644 --- a/compiler/rustc_parse_format/src/lib.rs +++ b/compiler/rustc_parse_format/src/lib.rs @@ -273,7 +273,13 @@ impl<'a> Iterator for Parser<'a> { ); } } else { - self.suggest_positional_arg_instead_of_captured_arg(arg); + if let Some(&(_, maybe)) = self.cur.peek() { + if maybe == '?' { + self.suggest_format(); + } else { + self.suggest_positional_arg_instead_of_captured_arg(arg); + } + } } Some(NextArgument(Box::new(arg))) } @@ -832,6 +838,27 @@ impl<'a> Parser<'a> { if found { Some(cur) } else { None } } + fn suggest_format(&mut self) { + if let (Some(pos), Some(_)) = (self.consume_pos('?'), self.consume_pos(':')) { + let word = self.word(); + let _end = self.current_pos(); + let pos = self.to_span_index(pos); + self.errors.insert( + 0, + ParseError { + description: "expected format parameter to occur after `:`".to_owned(), + note: Some( + format!("`?` comes after `:`, try `{}:{}` instead", word, "?").to_owned(), + ), + label: "expected `?` to occur after `:`".to_owned(), + span: pos.to(pos), + secondary_label: None, + should_be_replaced_with_positional_argument: false, + }, + ); + } + } + fn suggest_positional_arg_instead_of_captured_arg(&mut self, arg: Argument<'a>) { if let Some(end) = self.consume_pos('.') { let byte_pos = self.to_span_index(end); diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index 644d701be0ca..238ec9ca30f7 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -4,11 +4,7 @@ //! conflicts between multiple such attributes attached to the same //! item. -use crate::errors::{ - self, AttrApplication, DebugVisualizerUnreadable, InvalidAttrAtCrateLevel, ObjectLifetimeErr, - OnlyHasEffectOn, ProcMacroDiffArguments, ProcMacroInvalidAbi, ProcMacroMissingArguments, - ProcMacroTypeError, ProcMacroUnsafe, TransparentIncompatible, UnrecognizedReprHint, -}; +use crate::errors; use rustc_ast::{ast, AttrStyle, Attribute, LitKind, MetaItemKind, MetaItemLit, NestedMetaItem}; use rustc_data_structures::fx::FxHashMap; use rustc_errors::{fluent, Applicability, IntoDiagnosticArg, MultiSpan}; @@ -399,7 +395,7 @@ impl CheckAttrVisitor<'_> { UNUSED_ATTRIBUTES, hir_id, attr.span, - OnlyHasEffectOn { + errors::OnlyHasEffectOn { attr_name: attr.name_or_empty(), target_name: allowed_target.name().replace(' ', "_"), }, @@ -468,7 +464,7 @@ impl CheckAttrVisitor<'_> { ObjectLifetimeDefault::Param(def_id) => tcx.item_name(def_id).to_string(), ObjectLifetimeDefault::Ambiguous => "Ambiguous".to_owned(), }; - tcx.sess.emit_err(ObjectLifetimeErr { span: p.span, repr }); + tcx.sess.emit_err(errors::ObjectLifetimeErr { span: p.span, repr }); } } } @@ -1715,7 +1711,7 @@ impl CheckAttrVisitor<'_> { match target { Target::Struct | Target::Union | Target::Enum => continue, _ => { - self.tcx.sess.emit_err(AttrApplication::StructEnumUnion { + self.tcx.sess.emit_err(errors::AttrApplication::StructEnumUnion { hint_span: hint.span(), span, }); @@ -1736,16 +1732,18 @@ impl CheckAttrVisitor<'_> { match target { Target::Struct | Target::Union | Target::Enum | Target::Fn => continue, _ => { - self.tcx.sess.emit_err(AttrApplication::StructEnumFunctionUnion { - hint_span: hint.span(), - span, - }); + self.tcx.sess.emit_err( + errors::AttrApplication::StructEnumFunctionUnion { + hint_span: hint.span(), + span, + }, + ); } } } sym::packed => { if target != Target::Struct && target != Target::Union { - self.tcx.sess.emit_err(AttrApplication::StructUnion { + self.tcx.sess.emit_err(errors::AttrApplication::StructUnion { hint_span: hint.span(), span, }); @@ -1756,9 +1754,10 @@ impl CheckAttrVisitor<'_> { sym::simd => { is_simd = true; if target != Target::Struct { - self.tcx - .sess - .emit_err(AttrApplication::Struct { hint_span: hint.span(), span }); + self.tcx.sess.emit_err(errors::AttrApplication::Struct { + hint_span: hint.span(), + span, + }); } else { continue; } @@ -1768,7 +1767,7 @@ impl CheckAttrVisitor<'_> { match target { Target::Struct | Target::Union | Target::Enum => continue, _ => { - self.tcx.sess.emit_err(AttrApplication::StructEnumUnion { + self.tcx.sess.emit_err(errors::AttrApplication::StructEnumUnion { hint_span: hint.span(), span, }); @@ -1789,15 +1788,16 @@ impl CheckAttrVisitor<'_> { | sym::usize => { int_reprs += 1; if target != Target::Enum { - self.tcx - .sess - .emit_err(AttrApplication::Enum { hint_span: hint.span(), span }); + self.tcx.sess.emit_err(errors::AttrApplication::Enum { + hint_span: hint.span(), + span, + }); } else { continue; } } _ => { - self.tcx.sess.emit_err(UnrecognizedReprHint { span: hint.span() }); + self.tcx.sess.emit_err(errors::UnrecognizedReprHint { span: hint.span() }); continue; } }; @@ -1810,9 +1810,10 @@ impl CheckAttrVisitor<'_> { // Error on repr(transparent, ). if is_transparent && hints.len() > 1 { let hint_spans: Vec<_> = hint_spans.clone().collect(); - self.tcx - .sess - .emit_err(TransparentIncompatible { hint_spans, target: target.to_string() }); + self.tcx.sess.emit_err(errors::TransparentIncompatible { + hint_spans, + target: target.to_string(), + }); } // Warn on repr(u8, u16), repr(C, simd), and c-like-enum-repr(C, u8) if (int_reprs > 1) @@ -1965,7 +1966,7 @@ impl CheckAttrVisitor<'_> { match std::fs::File::open(&file) { Ok(_) => true, Err(error) => { - self.tcx.sess.emit_err(DebugVisualizerUnreadable { + self.tcx.sess.emit_err(errors::DebugVisualizerUnreadable { span: meta_item.span, file: &file, error, @@ -2175,12 +2176,15 @@ impl CheckAttrVisitor<'_> { let drcx = DeepRejectCtxt { treat_obligation_params: TreatParams::AsInfer }; if sig.abi != Abi::Rust { - tcx.sess.emit_err(ProcMacroInvalidAbi { span: hir_sig.span, abi: sig.abi.name() }); + tcx.sess.emit_err(errors::ProcMacroInvalidAbi { + span: hir_sig.span, + abi: sig.abi.name(), + }); self.abort.set(true); } if sig.unsafety == Unsafety::Unsafe { - tcx.sess.emit_err(ProcMacroUnsafe { span: hir_sig.span }); + tcx.sess.emit_err(errors::ProcMacroUnsafe { span: hir_sig.span }); self.abort.set(true); } @@ -2188,7 +2192,7 @@ impl CheckAttrVisitor<'_> { // Typecheck the output if !drcx.types_may_unify(output, tokenstream) { - tcx.sess.emit_err(ProcMacroTypeError { + tcx.sess.emit_err(errors::ProcMacroTypeError { span: hir_sig.decl.output.span(), found: output, kind, @@ -2198,7 +2202,7 @@ impl CheckAttrVisitor<'_> { } if sig.inputs().len() < expected_input_count { - tcx.sess.emit_err(ProcMacroMissingArguments { + tcx.sess.emit_err(errors::ProcMacroMissingArguments { expected_input_count, span: hir_sig.span, kind, @@ -2213,7 +2217,7 @@ impl CheckAttrVisitor<'_> { sig.inputs().iter().zip(hir_sig.decl.inputs).take(expected_input_count) { if !drcx.types_may_unify(*arg, tokenstream) { - tcx.sess.emit_err(ProcMacroTypeError { + tcx.sess.emit_err(errors::ProcMacroTypeError { span: input.span, found: *arg, kind, @@ -2228,7 +2232,7 @@ impl CheckAttrVisitor<'_> { let body_id = tcx.hir().body_owned_by(id.def_id); let excess = tcx.hir().body(body_id).params.get(expected_input_count..); if let Some(excess @ [begin @ end] | excess @ [begin, .., end]) = excess { - tcx.sess.emit_err(ProcMacroDiffArguments { + tcx.sess.emit_err(errors::ProcMacroDiffArguments { span: begin.span.to(end.span), count: excess.len(), kind, @@ -2378,7 +2382,7 @@ fn check_invalid_crate_level_attr(tcx: TyCtxt<'_>, attrs: &[Attribute]) { if attr.style == AttrStyle::Inner { for attr_to_check in ATTRS_TO_CHECK { if attr.has_name(*attr_to_check) { - tcx.sess.emit_err(InvalidAttrAtCrateLevel { + tcx.sess.emit_err(errors::InvalidAttrAtCrateLevel { span: attr.span, snippet: tcx.sess.source_map().span_to_snippet(attr.span).ok(), name: *attr_to_check, diff --git a/compiler/rustc_passes/src/lib_features.rs b/compiler/rustc_passes/src/lib_features.rs index 4c6a9b23fdf1..f4da1aaec113 100644 --- a/compiler/rustc_passes/src/lib_features.rs +++ b/compiler/rustc_passes/src/lib_features.rs @@ -4,7 +4,7 @@ //! but are not declared in one single location (unlike lang features), which means we need to //! collect them instead. -use rustc_ast::{Attribute, MetaItemKind}; +use rustc_ast::Attribute; use rustc_attr::{rust_version_symbol, VERSION_PLACEHOLDER}; use rustc_hir::intravisit::Visitor; use rustc_middle::hir::nested_filter; @@ -42,8 +42,7 @@ impl<'tcx> LibFeatureCollector<'tcx> { // Find a stability attribute: one of #[stable(…)], #[unstable(…)], // #[rustc_const_stable(…)], #[rustc_const_unstable(…)] or #[rustc_default_body_unstable]. if let Some(stab_attr) = stab_attrs.iter().find(|stab_attr| attr.has_name(**stab_attr)) { - let meta_kind = attr.meta_kind(); - if let Some(MetaItemKind::List(ref metas)) = meta_kind { + if let Some(metas) = attr.meta_item_list() { let mut feature = None; let mut since = None; for meta in metas { diff --git a/compiler/rustc_passes/src/stability.rs b/compiler/rustc_passes/src/stability.rs index 47911aef25d4..7299fc9705cc 100644 --- a/compiler/rustc_passes/src/stability.rs +++ b/compiler/rustc_passes/src/stability.rs @@ -1,12 +1,7 @@ //! A pass that annotates every item and method with its stability level, //! propagating default levels lexically from parent to children ast nodes. -use crate::errors::{ - self, CannotStabilizeDeprecated, DeprecatedAttribute, DuplicateFeatureErr, - FeatureOnlyOnNightly, ImpliedFeatureNotExist, InvalidDeprecationVersion, InvalidStability, - MissingConstErr, MissingConstStabAttr, MissingStabilityAttr, TraitImplConstStable, - UnknownFeature, UselessStability, -}; +use crate::errors; use rustc_attr::{ self as attr, rust_version_symbol, ConstStability, Stability, StabilityLevel, Unstable, UnstableReason, VERSION_PLACEHOLDER, @@ -185,7 +180,7 @@ impl<'a, 'tcx> Annotator<'a, 'tcx> { { self.tcx .sess - .emit_err(MissingConstErr { fn_sig_span: fn_sig.span, const_span }); + .emit_err(errors::MissingConstErr { fn_sig_span: fn_sig.span, const_span }); } } } @@ -203,7 +198,7 @@ impl<'a, 'tcx> Annotator<'a, 'tcx> { if let Some((rustc_attr::Deprecation { is_since_rustc_version: true, .. }, span)) = &depr { if stab.is_none() { - self.tcx.sess.emit_err(DeprecatedAttribute { span: *span }); + self.tcx.sess.emit_err(errors::DeprecatedAttribute { span: *span }); } } @@ -219,7 +214,7 @@ impl<'a, 'tcx> Annotator<'a, 'tcx> { if kind == AnnotationKind::Prohibited || (kind == AnnotationKind::Container && stab.level.is_stable() && is_deprecated) { - self.tcx.sess.emit_err(UselessStability { span, item_sp }); + self.tcx.sess.emit_err(errors::UselessStability { span, item_sp }); } debug!("annotate: found {:?}", stab); @@ -235,15 +230,16 @@ impl<'a, 'tcx> Annotator<'a, 'tcx> { { match stab_v.parse::() { Err(_) => { - self.tcx.sess.emit_err(InvalidStability { span, item_sp }); + self.tcx.sess.emit_err(errors::InvalidStability { span, item_sp }); break; } Ok(stab_vp) => match dep_v.parse::() { Ok(dep_vp) => match dep_vp.cmp(&stab_vp) { Ordering::Less => { - self.tcx - .sess - .emit_err(CannotStabilizeDeprecated { span, item_sp }); + self.tcx.sess.emit_err(errors::CannotStabilizeDeprecated { + span, + item_sp, + }); break; } Ordering::Equal => continue, @@ -251,9 +247,10 @@ impl<'a, 'tcx> Annotator<'a, 'tcx> { }, Err(_) => { if dep_v != "TBD" { - self.tcx - .sess - .emit_err(InvalidDeprecationVersion { span, item_sp }); + self.tcx.sess.emit_err(errors::InvalidDeprecationVersion { + span, + item_sp, + }); } break; } @@ -527,7 +524,7 @@ impl<'tcx> MissingStabilityAnnotations<'tcx> { && self.effective_visibilities.is_reachable(def_id) { let descr = self.tcx.def_kind(def_id).descr(def_id.to_def_id()); - self.tcx.sess.emit_err(MissingStabilityAttr { span, descr }); + self.tcx.sess.emit_err(errors::MissingStabilityAttr { span, descr }); } } @@ -555,7 +552,7 @@ impl<'tcx> MissingStabilityAnnotations<'tcx> { if is_const && is_stable && missing_const_stability_attribute && is_reachable { let descr = self.tcx.def_kind(def_id).descr(def_id.to_def_id()); - self.tcx.sess.emit_err(MissingConstStabAttr { span, descr }); + self.tcx.sess.emit_err(errors::MissingConstStabAttr { span, descr }); } } } @@ -768,7 +765,7 @@ impl<'tcx> Visitor<'tcx> for Checker<'tcx> { && *constness == hir::Constness::Const && const_stab.map_or(false, |(stab, _)| stab.is_const_stable()) { - self.tcx.sess.emit_err(TraitImplConstStable { span: item.span }); + self.tcx.sess.emit_err(errors::TraitImplConstStable { span: item.span }); } } @@ -947,7 +944,7 @@ pub fn check_unused_or_stable_features(tcx: TyCtxt<'_>) { } if !lang_features.insert(feature) { // Warn if the user enables a lang feature multiple times. - tcx.sess.emit_err(DuplicateFeatureErr { span, feature }); + tcx.sess.emit_err(errors::DuplicateFeatureErr { span, feature }); } } @@ -955,14 +952,14 @@ pub fn check_unused_or_stable_features(tcx: TyCtxt<'_>) { let mut remaining_lib_features = FxIndexMap::default(); for (feature, span) in declared_lib_features { if !tcx.sess.opts.unstable_features.is_nightly_build() { - tcx.sess.emit_err(FeatureOnlyOnNightly { + tcx.sess.emit_err(errors::FeatureOnlyOnNightly { span: *span, release_channel: env!("CFG_RELEASE_CHANNEL"), }); } if remaining_lib_features.contains_key(&feature) { // Warn if the user enables a lib feature multiple times. - tcx.sess.emit_err(DuplicateFeatureErr { span: *span, feature: *feature }); + tcx.sess.emit_err(errors::DuplicateFeatureErr { span: *span, feature: *feature }); } remaining_lib_features.insert(feature, *span); } @@ -1063,7 +1060,7 @@ pub fn check_unused_or_stable_features(tcx: TyCtxt<'_>) { } for (feature, span) in remaining_lib_features { - tcx.sess.emit_err(UnknownFeature { span, feature: *feature }); + tcx.sess.emit_err(errors::UnknownFeature { span, feature: *feature }); } for (implied_by, feature) in remaining_implications { @@ -1074,7 +1071,7 @@ pub fn check_unused_or_stable_features(tcx: TyCtxt<'_>) { .map(|(_, span)| span) .or_else(|| local_defined_features.unstable.get(&feature)) .expect("feature that implied another does not exist"); - tcx.sess.emit_err(ImpliedFeatureNotExist { span, feature, implied_by }); + tcx.sess.emit_err(errors::ImpliedFeatureNotExist { span, feature, implied_by }); } // FIXME(#44232): the `used_features` table no longer exists, so we diff --git a/compiler/rustc_privacy/Cargo.toml b/compiler/rustc_privacy/Cargo.toml index 832fdc9f0166..744cb77dd00c 100644 --- a/compiler/rustc_privacy/Cargo.toml +++ b/compiler/rustc_privacy/Cargo.toml @@ -13,6 +13,5 @@ rustc_macros = { path = "../rustc_macros" } rustc_middle = { path = "../rustc_middle" } rustc_session = { path = "../rustc_session" } rustc_span = { path = "../rustc_span" } -rustc_trait_selection = { path = "../rustc_trait_selection" } rustc_hir_analysis = { path = "../rustc_hir_analysis" } tracing = "0.1" diff --git a/compiler/rustc_query_impl/Cargo.toml b/compiler/rustc_query_impl/Cargo.toml index 46e77626479c..21732d260354 100644 --- a/compiler/rustc_query_impl/Cargo.toml +++ b/compiler/rustc_query_impl/Cargo.toml @@ -20,7 +20,6 @@ rustc-rayon-core = { version = "0.4.0", optional = true } rustc_serialize = { path = "../rustc_serialize" } rustc_session = { path = "../rustc_session" } rustc_span = { path = "../rustc_span" } -rustc_target = { path = "../rustc_target" } thin-vec = "0.2.9" tracing = "0.1" diff --git a/compiler/rustc_query_impl/src/plumbing.rs b/compiler/rustc_query_impl/src/plumbing.rs index 6125ad4eff11..4dea03c1ef6a 100644 --- a/compiler/rustc_query_impl/src/plumbing.rs +++ b/compiler/rustc_query_impl/src/plumbing.rs @@ -314,11 +314,14 @@ pub(crate) fn create_query_frame< kind: DepKind, name: &'static str, ) -> QueryStackFrame { - // Disable visible paths printing for performance reasons. - // Showing visible path instead of any path is not that important in production. - let description = ty::print::with_no_visible_paths!( - // Force filename-line mode to avoid invoking `type_of` query. - ty::print::with_forced_impl_filename_line!(do_describe(tcx.tcx, key)) + // Avoid calling queries while formatting the description + let description = ty::print::with_no_queries!( + // Disable visible paths printing for performance reasons. + // Showing visible path instead of any path is not that important in production. + ty::print::with_no_visible_paths!( + // Force filename-line mode to avoid invoking `type_of` query. + ty::print::with_forced_impl_filename_line!(do_describe(tcx.tcx, key)) + ) ); let description = if tcx.sess.verbose() { format!("{description} [{name:?}]") } else { description }; diff --git a/compiler/rustc_query_system/src/query/caches.rs b/compiler/rustc_query_system/src/query/caches.rs index 77d0d0314fc1..21c89cbc4f19 100644 --- a/compiler/rustc_query_system/src/query/caches.rs +++ b/compiler/rustc_query_system/src/query/caches.rs @@ -16,13 +16,13 @@ use std::marker::PhantomData; pub trait CacheSelector<'tcx, V> { type Cache where - V: Clone; + V: Copy; type ArenaCache; } pub trait QueryStorage { type Value: Debug; - type Stored: Clone; + type Stored: Copy; /// Store a value without putting it in the cache. /// This is meant to be used with cycle errors. @@ -36,14 +36,7 @@ pub trait QueryCache: QueryStorage + Sized { /// It returns the shard index and a lock guard to the shard, /// which will be used if the query is not in the cache and we need /// to compute it. - fn lookup( - &self, - key: &Self::Key, - // `on_hit` can be called while holding a lock to the query state shard. - on_hit: OnHit, - ) -> Result - where - OnHit: FnOnce(&Self::Stored, DepNodeIndex) -> R; + fn lookup(&self, key: &Self::Key) -> Option<(Self::Stored, DepNodeIndex)>; fn complete(&self, key: Self::Key, value: Self::Value, index: DepNodeIndex) -> Self::Stored; @@ -55,7 +48,7 @@ pub struct DefaultCacheSelector(PhantomData); impl<'tcx, K: Eq + Hash, V: 'tcx> CacheSelector<'tcx, V> for DefaultCacheSelector { type Cache = DefaultCache where - V: Clone; + V: Copy; type ArenaCache = ArenaCache<'tcx, K, V>; } @@ -72,7 +65,7 @@ impl Default for DefaultCache { } } -impl QueryStorage for DefaultCache { +impl QueryStorage for DefaultCache { type Value = V; type Stored = V; @@ -86,15 +79,12 @@ impl QueryStorage for DefaultCache { impl QueryCache for DefaultCache where K: Eq + Hash + Clone + Debug, - V: Clone + Debug, + V: Copy + Debug, { type Key = K; #[inline(always)] - fn lookup(&self, key: &K, on_hit: OnHit) -> Result - where - OnHit: FnOnce(&V, DepNodeIndex) -> R, - { + fn lookup(&self, key: &K) -> Option<(V, DepNodeIndex)> { let key_hash = sharded::make_hash(key); #[cfg(parallel_compiler)] let lock = self.cache.get_shard_by_hash(key_hash).lock(); @@ -102,12 +92,7 @@ where let lock = self.cache.lock(); let result = lock.raw_entry().from_key_hashed_nocheck(key_hash, key); - if let Some((_, value)) = result { - let hit_result = on_hit(&value.0, value.1); - Ok(hit_result) - } else { - Err(()) - } + if let Some((_, value)) = result { Some(*value) } else { None } } #[inline] @@ -176,10 +161,7 @@ where type Key = K; #[inline(always)] - fn lookup(&self, key: &K, on_hit: OnHit) -> Result - where - OnHit: FnOnce(&&'tcx V, DepNodeIndex) -> R, - { + fn lookup(&self, key: &K) -> Option<(&'tcx V, DepNodeIndex)> { let key_hash = sharded::make_hash(key); #[cfg(parallel_compiler)] let lock = self.cache.get_shard_by_hash(key_hash).lock(); @@ -187,12 +169,7 @@ where let lock = self.cache.lock(); let result = lock.raw_entry().from_key_hashed_nocheck(key_hash, key); - if let Some((_, value)) = result { - let hit_result = on_hit(&&value.0, value.1); - Ok(hit_result) - } else { - Err(()) - } + if let Some((_, value)) = result { Some((&value.0, value.1)) } else { None } } #[inline] @@ -234,7 +211,7 @@ pub struct VecCacheSelector(PhantomData); impl<'tcx, K: Idx, V: 'tcx> CacheSelector<'tcx, V> for VecCacheSelector { type Cache = VecCache where - V: Clone; + V: Copy; type ArenaCache = VecArenaCache<'tcx, K, V>; } @@ -251,7 +228,7 @@ impl Default for VecCache { } } -impl QueryStorage for VecCache { +impl QueryStorage for VecCache { type Value = V; type Stored = V; @@ -265,25 +242,17 @@ impl QueryStorage for VecCache { impl QueryCache for VecCache where K: Eq + Idx + Clone + Debug, - V: Clone + Debug, + V: Copy + Debug, { type Key = K; #[inline(always)] - fn lookup(&self, key: &K, on_hit: OnHit) -> Result - where - OnHit: FnOnce(&V, DepNodeIndex) -> R, - { + fn lookup(&self, key: &K) -> Option<(V, DepNodeIndex)> { #[cfg(parallel_compiler)] let lock = self.cache.get_shard_by_hash(key.index() as u64).lock(); #[cfg(not(parallel_compiler))] let lock = self.cache.lock(); - if let Some(Some(value)) = lock.get(*key) { - let hit_result = on_hit(&value.0, value.1); - Ok(hit_result) - } else { - Err(()) - } + if let Some(Some(value)) = lock.get(*key) { Some(*value) } else { None } } #[inline] @@ -357,20 +326,12 @@ where type Key = K; #[inline(always)] - fn lookup(&self, key: &K, on_hit: OnHit) -> Result - where - OnHit: FnOnce(&&'tcx V, DepNodeIndex) -> R, - { + fn lookup(&self, key: &K) -> Option<(&'tcx V, DepNodeIndex)> { #[cfg(parallel_compiler)] let lock = self.cache.get_shard_by_hash(key.index() as u64).lock(); #[cfg(not(parallel_compiler))] let lock = self.cache.lock(); - if let Some(Some(value)) = lock.get(*key) { - let hit_result = on_hit(&&value.0, value.1); - Ok(hit_result) - } else { - Err(()) - } + if let Some(Some(value)) = lock.get(*key) { Some((&value.0, value.1)) } else { None } } #[inline] diff --git a/compiler/rustc_query_system/src/query/config.rs b/compiler/rustc_query_system/src/query/config.rs index 8c0330e438de..a28e45a5c086 100644 --- a/compiler/rustc_query_system/src/query/config.rs +++ b/compiler/rustc_query_system/src/query/config.rs @@ -21,7 +21,7 @@ pub trait QueryConfig { type Key: DepNodeParams + Eq + Hash + Clone + Debug; type Value: Debug; - type Stored: Debug + Clone + std::borrow::Borrow; + type Stored: Debug + Copy + std::borrow::Borrow; type Cache: QueryCache; diff --git a/compiler/rustc_query_system/src/query/plumbing.rs b/compiler/rustc_query_system/src/query/plumbing.rs index b3b939eae88d..ffc413d15f52 100644 --- a/compiler/rustc_query_system/src/query/plumbing.rs +++ b/compiler/rustc_query_system/src/query/plumbing.rs @@ -130,7 +130,7 @@ fn mk_cycle( where Qcx: QueryContext + crate::query::HasDepContext, V: std::fmt::Debug + Value, - R: Clone, + R: Copy, { let error = report_cycle(qcx.dep_context().sess(), &cycle_error); let value = handle_cycle_error(*qcx.dep_context(), &cycle_error, error, handler); @@ -339,25 +339,21 @@ where /// which will be used if the query is not in the cache and we need /// to compute it. #[inline] -pub fn try_get_cached( - tcx: Tcx, - cache: &C, - key: &C::Key, - // `on_hit` can be called while holding a lock to the query cache - on_hit: OnHit, -) -> Result +pub fn try_get_cached(tcx: Tcx, cache: &C, key: &C::Key) -> Option where C: QueryCache, Tcx: DepContext, - OnHit: FnOnce(&C::Stored) -> R, { - cache.lookup(&key, |value, index| { - if std::intrinsics::unlikely(tcx.profiler().enabled()) { - tcx.profiler().query_cache_hit(index.into()); + match cache.lookup(&key) { + Some((value, index)) => { + if std::intrinsics::unlikely(tcx.profiler().enabled()) { + tcx.profiler().query_cache_hit(index.into()); + } + tcx.dep_graph().read_index(index); + Some(value) } - tcx.dep_graph().read_index(index); - on_hit(value) - }) + None => None, + } } fn try_execute_query( @@ -379,17 +375,25 @@ where if Q::FEEDABLE { // We may have put a value inside the cache from inside the execution. // Verify that it has the same hash as what we have now, to ensure consistency. - let _ = cache.lookup(&key, |cached_result, _| { + if let Some((cached_result, _)) = cache.lookup(&key) { let hasher = Q::HASH_RESULT.expect("feedable forbids no_hash"); - let old_hash = qcx.dep_context().with_stable_hashing_context(|mut hcx| hasher(&mut hcx, cached_result.borrow())); - let new_hash = qcx.dep_context().with_stable_hashing_context(|mut hcx| hasher(&mut hcx, &result)); + let old_hash = qcx.dep_context().with_stable_hashing_context(|mut hcx| { + hasher(&mut hcx, cached_result.borrow()) + }); + let new_hash = qcx + .dep_context() + .with_stable_hashing_context(|mut hcx| hasher(&mut hcx, &result)); debug_assert_eq!( - old_hash, new_hash, + old_hash, + new_hash, "Computed query value for {:?}({:?}) is inconsistent with fed value,\ncomputed={:#?}\nfed={:#?}", - Q::DEP_KIND, key, result, cached_result, + Q::DEP_KIND, + key, + result, + cached_result, ); - }); + } } let result = job.complete(cache, result, dep_node_index); (result, Some(dep_node_index)) @@ -400,9 +404,9 @@ where } #[cfg(parallel_compiler)] TryGetJob::JobCompleted(query_blocked_prof_timer) => { - let (v, index) = cache - .lookup(&key, |value, index| (value.clone(), index)) - .unwrap_or_else(|_| panic!("value must be in cache after waiting")); + let Some((v, index)) = cache.lookup(&key) else { + panic!("value must be in cache after waiting") + }; if std::intrinsics::unlikely(qcx.dep_context().profiler().enabled()) { qcx.dep_context().profiler().query_cache_hit(index.into()); @@ -771,15 +775,11 @@ where // We may be concurrently trying both execute and force a query. // Ensure that only one of them runs the query. let cache = Q::query_cache(qcx); - let cached = cache.lookup(&key, |_, index| { + if let Some((_, index)) = cache.lookup(&key) { if std::intrinsics::unlikely(qcx.dep_context().profiler().enabled()) { qcx.dep_context().profiler().query_cache_hit(index.into()); } - }); - - match cached { - Ok(()) => return, - Err(()) => {} + return; } let state = Q::query_state(qcx); diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index 84421dc1f622..2fb62ce53ba6 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -265,7 +265,7 @@ impl<'a, 'b> BuildReducedGraphVisitor<'a, 'b> { let ident = path.segments.get(0).expect("empty path in visibility").ident; let crate_root = if ident.is_path_segment_keyword() { None - } else if ident.span.rust_2015() { + } else if ident.span.is_rust_2015() { Some(Segment::from_ident(Ident::new( kw::PathRoot, path.span.shrink_to_lo().with_ctxt(ident.span.ctxt()), @@ -435,10 +435,10 @@ impl<'a, 'b> BuildReducedGraphVisitor<'a, 'b> { // appears, so imports in braced groups can have roots prepended independently. let is_glob = matches!(use_tree.kind, ast::UseTreeKind::Glob); let crate_root = match prefix_iter.peek() { - Some(seg) if !seg.ident.is_path_segment_keyword() && seg.ident.span.rust_2015() => { + Some(seg) if !seg.ident.is_path_segment_keyword() && seg.ident.span.is_rust_2015() => { Some(seg.ident.span.ctxt()) } - None if is_glob && use_tree.span.rust_2015() => Some(use_tree.span.ctxt()), + None if is_glob && use_tree.span.is_rust_2015() => Some(use_tree.span.ctxt()), _ => None, } .map(|ctxt| { diff --git a/compiler/rustc_resolve/src/diagnostics.rs b/compiler/rustc_resolve/src/diagnostics.rs index 3bf041cebcb8..a08ae0f184bb 100644 --- a/compiler/rustc_resolve/src/diagnostics.rs +++ b/compiler/rustc_resolve/src/diagnostics.rs @@ -462,7 +462,9 @@ impl<'a> Resolver<'a> { let first_name = match path.get(0) { // In the 2018 edition this lint is a hard error, so nothing to do - Some(seg) if seg.ident.span.rust_2015() && self.session.rust_2015() => seg.ident.name, + Some(seg) if seg.ident.span.is_rust_2015() && self.session.is_rust_2015() => { + seg.ident.name + } _ => return, }; @@ -1717,7 +1719,7 @@ impl<'a> Resolver<'a> { Applicability::MaybeIncorrect, )), ) - } else if self.session.rust_2015() { + } else if self.session.is_rust_2015() { ( format!("maybe a missing crate `{ident}`?"), Some(( @@ -1996,7 +1998,7 @@ impl<'a, 'b> ImportResolver<'a, 'b> { mut path: Vec, parent_scope: &ParentScope<'b>, ) -> Option<(Vec, Option)> { - if path[1].ident.span.rust_2015() { + if path[1].ident.span.is_rust_2015() { return None; } diff --git a/compiler/rustc_resolve/src/ident.rs b/compiler/rustc_resolve/src/ident.rs index 1c985d43658a..d03ccf256fad 100644 --- a/compiler/rustc_resolve/src/ident.rs +++ b/compiler/rustc_resolve/src/ident.rs @@ -85,7 +85,7 @@ impl<'a> Resolver<'a> { // 4c. Standard library prelude (de-facto closed, controlled). // 6. Language prelude: builtin attributes (closed, controlled). - let rust_2015 = ctxt.edition().rust_2015(); + let rust_2015 = ctxt.edition().is_rust_2015(); let (ns, macro_kind, is_absolute_path) = match scope_set { ScopeSet::All(ns, _) => (ns, None, false), ScopeSet::AbsolutePath(ns) => (ns, None, true), @@ -1397,7 +1397,8 @@ impl<'a> Resolver<'a> { module = Some(ModuleOrUniformRoot::ExternPrelude); continue; } - if name == kw::PathRoot && ident.span.rust_2015() && self.session.rust_2018() { + if name == kw::PathRoot && ident.span.is_rust_2015() && self.session.rust_2018() + { // `::a::b` from 2015 macro on 2018 global edition module = Some(ModuleOrUniformRoot::CrateRootAndExternPrelude); continue; diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs index 83932c089b31..3ca10ac50baa 100644 --- a/compiler/rustc_resolve/src/late.rs +++ b/compiler/rustc_resolve/src/late.rs @@ -2145,7 +2145,7 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> { let segments = &use_tree.prefix.segments; if !segments.is_empty() { let ident = segments[0].ident; - if ident.is_path_segment_keyword() || ident.span.rust_2015() { + if ident.is_path_segment_keyword() || ident.span.is_rust_2015() { return; } diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index 37beff37c1fb..cee0a7f3c203 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -1343,7 +1343,7 @@ impl<'a: 'ast, 'ast> LateResolutionVisitor<'a, '_, 'ast> { "!", Applicability::MaybeIncorrect, ); - if path_str == "try" && span.rust_2015() { + if path_str == "try" && span.is_rust_2015() { err.note("if you want the `try` keyword, you need Rust 2018 or later"); } } diff --git a/compiler/rustc_session/src/code_stats.rs b/compiler/rustc_session/src/code_stats.rs index 87dfccdef2f1..55178250472e 100644 --- a/compiler/rustc_session/src/code_stats.rs +++ b/compiler/rustc_session/src/code_stats.rs @@ -84,7 +84,11 @@ impl CodeStats { // Sort variants so the largest ones are shown first. A stable sort is // used here so that source code order is preserved for all variants // that have the same size. - variants.sort_by(|info1, info2| info2.size.cmp(&info1.size)); + // Except for Generators, whose variants are already sorted according to + // their yield points in `variant_info_for_generator`. + if kind != DataTypeKind::Generator { + variants.sort_by(|info1, info2| info2.size.cmp(&info1.size)); + } let info = TypeSizeInfo { kind, type_description: type_desc.to_string(), diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs index 746e0f169bcf..8a0176f63917 100644 --- a/compiler/rustc_session/src/session.rs +++ b/compiler/rustc_session/src/session.rs @@ -3,15 +3,7 @@ use crate::code_stats::CodeStats; pub use crate::code_stats::{DataTypeKind, FieldInfo, FieldKind, SizeKind, VariantInfo}; use crate::config::Input; use crate::config::{self, CrateType, InstrumentCoverage, OptLevel, OutputType, SwitchWithOptPath}; -use crate::errors::{ - BranchProtectionRequiresAArch64, CannotEnableCrtStaticLinux, CannotMixAndMatchSanitizers, - LinkerPluginToWindowsNotSupported, NotCircumventFeature, OptimisationFuelExhausted, - ProfileSampleUseFileDoesNotExist, ProfileUseFileDoesNotExist, SanitizerCfiEnabled, - SanitizerNotSupported, SanitizersNotSupported, SkippingConstChecks, - SplitDebugInfoUnstablePlatform, StackProtectorNotSupportedForTarget, - TargetRequiresUnwindTables, UnleashedFeatureHelp, UnstableVirtualFunctionElimination, - UnsupportedDwarfVersion, -}; +use crate::errors; use crate::parse::{add_feature_diagnostics, ParseSess}; use crate::search_paths::{PathKind, SearchPath}; use crate::{filesearch, lint}; @@ -246,15 +238,15 @@ impl Session { if !unleashed_features.is_empty() { let mut must_err = false; // Create a diagnostic pointing at where things got unleashed. - self.emit_warning(SkippingConstChecks { + self.emit_warning(errors::SkippingConstChecks { unleashed_features: unleashed_features .iter() .map(|(span, gate)| { gate.map(|gate| { must_err = true; - UnleashedFeatureHelp::Named { span: *span, gate } + errors::UnleashedFeatureHelp::Named { span: *span, gate } }) - .unwrap_or(UnleashedFeatureHelp::Unnamed { span: *span }) + .unwrap_or(errors::UnleashedFeatureHelp::Unnamed { span: *span }) }) .collect(), }); @@ -262,7 +254,7 @@ impl Session { // If we should err, make sure we did. if must_err && self.has_errors().is_none() { // We have skipped a feature gate, and not run into other errors... reject. - self.emit_err(NotCircumventFeature); + self.emit_err(errors::NotCircumventFeature); } } } @@ -901,7 +893,7 @@ impl Session { // We only call `msg` in case we can actually emit warnings. // Otherwise, this could cause a `delay_good_path_bug` to // trigger (issue #79546). - self.emit_warning(OptimisationFuelExhausted { msg: msg() }); + self.emit_warning(errors::OptimisationFuelExhausted { msg: msg() }); } fuel.out_of_fuel = true; } else if fuel.remaining > 0 { @@ -919,8 +911,8 @@ impl Session { } /// Is this edition 2015? - pub fn rust_2015(&self) -> bool { - self.edition().rust_2015() + pub fn is_rust_2015(&self) -> bool { + self.edition().is_rust_2015() } /// Are we allowed to use features from the Rust 2018 edition? @@ -1502,28 +1494,28 @@ fn validate_commandline_args_with_session_available(sess: &Session) { && sess.opts.cg.prefer_dynamic && sess.target.is_like_windows { - sess.emit_err(LinkerPluginToWindowsNotSupported); + sess.emit_err(errors::LinkerPluginToWindowsNotSupported); } // Make sure that any given profiling data actually exists so LLVM can't // decide to silently skip PGO. if let Some(ref path) = sess.opts.cg.profile_use { if !path.exists() { - sess.emit_err(ProfileUseFileDoesNotExist { path }); + sess.emit_err(errors::ProfileUseFileDoesNotExist { path }); } } // Do the same for sample profile data. if let Some(ref path) = sess.opts.unstable_opts.profile_sample_use { if !path.exists() { - sess.emit_err(ProfileSampleUseFileDoesNotExist { path }); + sess.emit_err(errors::ProfileSampleUseFileDoesNotExist { path }); } } // Unwind tables cannot be disabled if the target requires them. if let Some(include_uwtables) = sess.opts.cg.force_unwind_tables { if sess.target.requires_uwtable && !include_uwtables { - sess.emit_err(TargetRequiresUnwindTables); + sess.emit_err(errors::TargetRequiresUnwindTables); } } @@ -1533,16 +1525,18 @@ fn validate_commandline_args_with_session_available(sess: &Session) { match unsupported_sanitizers.into_iter().count() { 0 => {} 1 => { - sess.emit_err(SanitizerNotSupported { us: unsupported_sanitizers.to_string() }); + sess.emit_err(errors::SanitizerNotSupported { us: unsupported_sanitizers.to_string() }); } _ => { - sess.emit_err(SanitizersNotSupported { us: unsupported_sanitizers.to_string() }); + sess.emit_err(errors::SanitizersNotSupported { + us: unsupported_sanitizers.to_string(), + }); } } // Cannot mix and match sanitizers. let mut sanitizer_iter = sess.opts.unstable_opts.sanitizer.into_iter(); if let (Some(first), Some(second)) = (sanitizer_iter.next(), sanitizer_iter.next()) { - sess.emit_err(CannotMixAndMatchSanitizers { + sess.emit_err(errors::CannotMixAndMatchSanitizers { first: first.to_string(), second: second.to_string(), }); @@ -1550,22 +1544,22 @@ fn validate_commandline_args_with_session_available(sess: &Session) { // Cannot enable crt-static with sanitizers on Linux if sess.crt_static(None) && !sess.opts.unstable_opts.sanitizer.is_empty() { - sess.emit_err(CannotEnableCrtStaticLinux); + sess.emit_err(errors::CannotEnableCrtStaticLinux); } // LLVM CFI and VFE both require LTO. if sess.lto() != config::Lto::Fat { if sess.is_sanitizer_cfi_enabled() { - sess.emit_err(SanitizerCfiEnabled); + sess.emit_err(errors::SanitizerCfiEnabled); } if sess.opts.unstable_opts.virtual_function_elimination { - sess.emit_err(UnstableVirtualFunctionElimination); + sess.emit_err(errors::UnstableVirtualFunctionElimination); } } // LLVM CFI and KCFI are mutually exclusive if sess.is_sanitizer_cfi_enabled() && sess.is_sanitizer_kcfi_enabled() { - sess.emit_err(CannotMixAndMatchSanitizers { + sess.emit_err(errors::CannotMixAndMatchSanitizers { first: "cfi".to_string(), second: "kcfi".to_string(), }); @@ -1573,7 +1567,7 @@ fn validate_commandline_args_with_session_available(sess: &Session) { if sess.opts.unstable_opts.stack_protector != StackProtector::None { if !sess.target.options.supports_stack_protector { - sess.emit_warning(StackProtectorNotSupportedForTarget { + sess.emit_warning(errors::StackProtectorNotSupportedForTarget { stack_protector: sess.opts.unstable_opts.stack_protector, target_triple: &sess.opts.target_triple, }); @@ -1581,19 +1575,19 @@ fn validate_commandline_args_with_session_available(sess: &Session) { } if sess.opts.unstable_opts.branch_protection.is_some() && sess.target.arch != "aarch64" { - sess.emit_err(BranchProtectionRequiresAArch64); + sess.emit_err(errors::BranchProtectionRequiresAArch64); } if let Some(dwarf_version) = sess.opts.unstable_opts.dwarf_version { if dwarf_version > 5 { - sess.emit_err(UnsupportedDwarfVersion { dwarf_version }); + sess.emit_err(errors::UnsupportedDwarfVersion { dwarf_version }); } } if !sess.target.options.supported_split_debuginfo.contains(&sess.split_debuginfo()) && !sess.opts.unstable_opts.unstable_options { - sess.emit_err(SplitDebugInfoUnstablePlatform { debuginfo: sess.split_debuginfo() }); + sess.emit_err(errors::SplitDebugInfoUnstablePlatform { debuginfo: sess.split_debuginfo() }); } } diff --git a/compiler/rustc_span/src/def_id.rs b/compiler/rustc_span/src/def_id.rs index 7c5e1427d1ed..cdda052f5290 100644 --- a/compiler/rustc_span/src/def_id.rs +++ b/compiler/rustc_span/src/def_id.rs @@ -119,6 +119,12 @@ impl DefPathHash { } } +impl Default for DefPathHash { + fn default() -> Self { + DefPathHash(Fingerprint::ZERO) + } +} + impl Borrow for DefPathHash { #[inline] fn borrow(&self) -> &Fingerprint { diff --git a/compiler/rustc_span/src/edition.rs b/compiler/rustc_span/src/edition.rs index e66ec0790434..f16db69aae23 100644 --- a/compiler/rustc_span/src/edition.rs +++ b/compiler/rustc_span/src/edition.rs @@ -77,7 +77,7 @@ impl Edition { } /// Is this edition 2015? - pub fn rust_2015(self) -> bool { + pub fn is_rust_2015(self) -> bool { self == Edition::Edition2015 } diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs index 006102a5f2fc..e095cf3fda20 100644 --- a/compiler/rustc_span/src/lib.rs +++ b/compiler/rustc_span/src/lib.rs @@ -705,8 +705,8 @@ impl Span { } #[inline] - pub fn rust_2015(self) -> bool { - self.edition().rust_2015() + pub fn is_rust_2015(self) -> bool { + self.edition().is_rust_2015() } #[inline] diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index f1119214be44..1933360f722a 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -1049,6 +1049,7 @@ symbols! { overlapping_marker_traits, owned_box, packed, + packed_bundled_libs, panic, panic_2015, panic_2021, diff --git a/compiler/rustc_trait_selection/Cargo.toml b/compiler/rustc_trait_selection/Cargo.toml index 90d879976c26..3f863038efb3 100644 --- a/compiler/rustc_trait_selection/Cargo.toml +++ b/compiler/rustc_trait_selection/Cargo.toml @@ -16,7 +16,6 @@ rustc_errors = { path = "../rustc_errors" } rustc_hir = { path = "../rustc_hir" } rustc_index = { path = "../rustc_index" } rustc_infer = { path = "../rustc_infer" } -rustc_lint_defs = { path = "../rustc_lint_defs" } rustc_macros = { path = "../rustc_macros" } rustc_query_system = { path = "../rustc_query_system" } rustc_serialize = { path = "../rustc_serialize" } diff --git a/compiler/rustc_trait_selection/src/solve/assembly.rs b/compiler/rustc_trait_selection/src/solve/assembly.rs index 5690b6536bbc..ccdf6246083c 100644 --- a/compiler/rustc_trait_selection/src/solve/assembly.rs +++ b/compiler/rustc_trait_selection/src/solve/assembly.rs @@ -81,6 +81,7 @@ pub(super) enum CandidateSource { AliasBound, } +/// Methods used to assemble candidates for either trait or projection goals. pub(super) trait GoalKind<'tcx>: TypeFoldable<'tcx> + Copy + Eq { fn self_ty(self) -> Ty<'tcx>; @@ -188,6 +189,11 @@ pub(super) trait GoalKind<'tcx>: TypeFoldable<'tcx> + Copy + Eq { ecx: &mut EvalCtxt<'_, 'tcx>, goal: Goal<'tcx, Self>, ) -> Vec>; + + fn consider_builtin_discriminant_kind_candidate( + ecx: &mut EvalCtxt<'_, 'tcx>, + goal: Goal<'tcx, Self>, + ) -> QueryResult<'tcx>; } impl<'tcx> EvalCtxt<'_, 'tcx> { @@ -320,6 +326,8 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { G::consider_builtin_generator_candidate(self, goal) } else if lang_items.unsize_trait() == Some(trait_def_id) { G::consider_builtin_unsize_candidate(self, goal) + } else if lang_items.discriminant_kind_trait() == Some(trait_def_id) { + G::consider_builtin_discriminant_kind_candidate(self, goal) } else { Err(NoSolution) }; diff --git a/compiler/rustc_trait_selection/src/solve/mod.rs b/compiler/rustc_trait_selection/src/solve/mod.rs index 36170b3788a7..e4725c0a1b73 100644 --- a/compiler/rustc_trait_selection/src/solve/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/mod.rs @@ -24,7 +24,8 @@ use rustc_infer::infer::{InferCtxt, InferOk, TyCtxtInferExt}; use rustc_infer::traits::query::NoSolution; use rustc_infer::traits::Obligation; use rustc_middle::infer::canonical::Certainty as OldCertainty; -use rustc_middle::ty::{self, Ty, TyCtxt}; +use rustc_middle::traits::solve::{ExternalConstraints, ExternalConstraintsData}; +use rustc_middle::ty::{self, TyCtxt}; use rustc_middle::ty::{ CoercePredicate, RegionOutlivesPredicate, SubtypePredicate, ToPredicate, TypeOutlivesPredicate, }; @@ -72,8 +73,7 @@ impl<'tcx, P> From> for Goal<'tcx, P> { Goal { param_env: obligation.param_env, predicate: obligation.predicate } } } - -#[derive(Debug, PartialEq, Eq, Clone, Hash, TypeFoldable, TypeVisitable)] +#[derive(Debug, PartialEq, Eq, Clone, Copy, Hash, TypeFoldable, TypeVisitable)] pub struct Response<'tcx> { pub var_values: CanonicalVarValues<'tcx>, /// Additional constraints returned by this query. @@ -121,14 +121,6 @@ pub enum MaybeCause { Overflow, } -/// Additional constraints returned on success. -#[derive(Debug, PartialEq, Eq, Clone, Hash, TypeFoldable, TypeVisitable, Default)] -pub struct ExternalConstraints<'tcx> { - // FIXME: implement this. - regions: (), - opaque_types: Vec<(Ty<'tcx>, Ty<'tcx>)>, -} - type CanonicalGoal<'tcx, T = ty::Predicate<'tcx>> = Canonical<'tcx, Goal<'tcx, T>>; type CanonicalResponse<'tcx> = Canonical<'tcx, Response<'tcx>>; /// The result of evaluating a canonical query. @@ -218,15 +210,14 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> { EvalCtxt { infcx, var_values, search_graph, in_projection_eq_hack: false }; let result = ecx.compute_goal(goal); - // FIXME: `Response` should be `Copy` - if search_graph.try_finalize_goal(tcx, canonical_goal, result.clone()) { + if search_graph.try_finalize_goal(tcx, canonical_goal, result) { return result; } } } fn make_canonical_response(&self, certainty: Certainty) -> QueryResult<'tcx> { - let external_constraints = take_external_constraints(self.infcx)?; + let external_constraints = compute_external_query_constraints(self.infcx)?; Ok(self.infcx.canonicalize_response(Response { var_values: self.var_values, @@ -461,18 +452,18 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { } #[instrument(level = "debug", skip(infcx), ret)] -fn take_external_constraints<'tcx>( +fn compute_external_query_constraints<'tcx>( infcx: &InferCtxt<'tcx>, ) -> Result, NoSolution> { let region_obligations = infcx.take_registered_region_obligations(); let opaque_types = infcx.take_opaque_types_for_query_response(); - Ok(ExternalConstraints { + Ok(infcx.tcx.intern_external_constraints(ExternalConstraintsData { // FIXME: Now that's definitely wrong :) // // Should also do the leak check here I think regions: drop(region_obligations), opaque_types, - }) + })) } fn instantiate_canonical_query_response<'tcx>( @@ -492,7 +483,10 @@ fn instantiate_canonical_query_response<'tcx>( Certainty::Yes => OldCertainty::Proven, Certainty::Maybe(_) => OldCertainty::Ambiguous, }, - opaque_types: resp.external_constraints.opaque_types, + // FIXME: This to_owned makes me sad, but we should eventually impl + // `instantiate_query_response_and_region_obligations` separately + // instead of piggybacking off of the old implementation. + opaque_types: resp.external_constraints.opaque_types.to_owned(), value: resp.certainty, }), ) else { bug!(); }; @@ -510,7 +504,10 @@ pub(super) fn response_no_constraints<'tcx>( variables: goal.variables, value: Response { var_values: CanonicalVarValues::make_identity(tcx, goal.variables), - external_constraints: Default::default(), + // FIXME: maybe we should store the "no response" version in tcx, like + // we do for tcx.types and stuff. + external_constraints: tcx + .intern_external_constraints(ExternalConstraintsData::default()), certainty, }, }) diff --git a/compiler/rustc_trait_selection/src/solve/project_goals.rs b/compiler/rustc_trait_selection/src/solve/project_goals.rs index a23fdd24b4e4..9f62f686af64 100644 --- a/compiler/rustc_trait_selection/src/solve/project_goals.rs +++ b/compiler/rustc_trait_selection/src/solve/project_goals.rs @@ -581,6 +581,15 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> { ) -> Vec> { bug!("`Unsize` does not have an associated type: {:?}", goal); } + + fn consider_builtin_discriminant_kind_candidate( + ecx: &mut EvalCtxt<'_, 'tcx>, + goal: Goal<'tcx, Self>, + ) -> QueryResult<'tcx> { + let discriminant = goal.predicate.self_ty().discriminant_ty(ecx.tcx()); + ecx.infcx + .probe(|_| ecx.eq_term_and_make_canonical_response(goal, Certainty::Yes, discriminant)) + } } /// This behavior is also implemented in `rustc_ty_utils` and in the old `project` code. diff --git a/compiler/rustc_trait_selection/src/solve/search_graph/cache.rs b/compiler/rustc_trait_selection/src/solve/search_graph/cache.rs index 80a388b8498b..86b13c05f76a 100644 --- a/compiler/rustc_trait_selection/src/solve/search_graph/cache.rs +++ b/compiler/rustc_trait_selection/src/solve/search_graph/cache.rs @@ -95,8 +95,7 @@ impl<'tcx> ProvisionalCache<'tcx> { } pub(super) fn provisional_result(&self, entry_index: EntryIndex) -> QueryResult<'tcx> { - // FIXME: Responses should probably be `Copy` as well - self.entries[entry_index].response.clone() + self.entries[entry_index].response } } diff --git a/compiler/rustc_trait_selection/src/solve/trait_goals.rs b/compiler/rustc_trait_selection/src/solve/trait_goals.rs index 29ee9da38e08..0003dfeaee78 100644 --- a/compiler/rustc_trait_selection/src/solve/trait_goals.rs +++ b/compiler/rustc_trait_selection/src/solve/trait_goals.rs @@ -439,6 +439,14 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> { responses } + + fn consider_builtin_discriminant_kind_candidate( + ecx: &mut EvalCtxt<'_, 'tcx>, + _goal: Goal<'tcx, Self>, + ) -> QueryResult<'tcx> { + // `DiscriminantKind` is automatically implemented for every type. + ecx.make_canonical_response(Certainty::Yes) + } } impl<'tcx> EvalCtxt<'_, 'tcx> { diff --git a/compiler/rustc_trait_selection/src/traits/object_safety.rs b/compiler/rustc_trait_selection/src/traits/object_safety.rs index 565cfca9090e..8f548acfd2ea 100644 --- a/compiler/rustc_trait_selection/src/traits/object_safety.rs +++ b/compiler/rustc_trait_selection/src/traits/object_safety.rs @@ -547,16 +547,56 @@ fn virtual_call_violation_for_method<'tcx>( // NOTE: This check happens last, because it results in a lint, and not a // hard error. - if tcx - .predicates_of(method.def_id) - .predicates - .iter() - // A trait object can't claim to live more than the concrete type, - // so outlives predicates will always hold. - .cloned() - .filter(|(p, _)| p.to_opt_type_outlives().is_none()) - .any(|pred| contains_illegal_self_type_reference(tcx, trait_def_id, pred)) - { + if tcx.predicates_of(method.def_id).predicates.iter().any(|&(pred, span)| { + // dyn Trait is okay: + // + // trait Trait { + // fn f(&self) where Self: 'static; + // } + // + // because a trait object can't claim to live longer than the concrete + // type. If the lifetime bound holds on dyn Trait then it's guaranteed + // to hold as well on the concrete type. + if pred.to_opt_type_outlives().is_some() { + return false; + } + + // dyn Trait is okay: + // + // auto trait AutoTrait {} + // + // trait Trait { + // fn f(&self) where Self: AutoTrait; + // } + // + // because `impl AutoTrait for dyn Trait` is disallowed by coherence. + // Traits with a default impl are implemented for a trait object if and + // only if the autotrait is one of the trait object's trait bounds, like + // in `dyn Trait + AutoTrait`. This guarantees that trait objects only + // implement auto traits if the underlying type does as well. + if let ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate { + trait_ref: pred_trait_ref, + constness: ty::BoundConstness::NotConst, + polarity: ty::ImplPolarity::Positive, + })) = pred.kind().skip_binder() + && pred_trait_ref.self_ty() == tcx.types.self_param + && tcx.trait_is_auto(pred_trait_ref.def_id) + { + // Consider bounds like `Self: Bound`. Auto traits are not + // allowed to have generic parameters so `auto trait Bound {}` + // would already have reported an error at the definition of the + // auto trait. + if pred_trait_ref.substs.len() != 1 { + tcx.sess.diagnostic().delay_span_bug( + span, + "auto traits cannot have generic parameters", + ); + } + return false; + } + + contains_illegal_self_type_reference(tcx, trait_def_id, pred.clone()) + }) { return Some(MethodViolationCode::WhereClauseReferencesSelf); } diff --git a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs index 0a4136dc1cfe..94d9eb8f587a 100644 --- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs +++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs @@ -1190,6 +1190,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { ImplDerivedObligation(Box::new(ImplDerivedObligationCause { derived, impl_def_id, + impl_def_predicate_index: None, span: obligation.cause.span, })) }); diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index ad7d479896fd..0c6b2406bbda 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -2608,11 +2608,12 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { assert_eq!(predicates.parent, None); let predicates = predicates.instantiate_own(tcx, substs); let mut obligations = Vec::with_capacity(predicates.len()); - for (predicate, span) in predicates { + for (index, (predicate, span)) in predicates.into_iter().enumerate() { let cause = cause.clone().derived_cause(parent_trait_pred, |derived| { ImplDerivedObligation(Box::new(ImplDerivedObligationCause { derived, impl_def_id: def_id, + impl_def_predicate_index: Some(index), span, })) }); diff --git a/compiler/rustc_traits/Cargo.toml b/compiler/rustc_traits/Cargo.toml index a432498abcca..eff6fb26dd4c 100644 --- a/compiler/rustc_traits/Cargo.toml +++ b/compiler/rustc_traits/Cargo.toml @@ -5,7 +5,6 @@ edition = "2021" [dependencies] tracing = "0.1" -rustc_attr = { path = "../rustc_attr" } rustc_middle = { path = "../rustc_middle" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_hir = { path = "../rustc_hir" } diff --git a/compiler/rustc_ty_utils/src/abi.rs b/compiler/rustc_ty_utils/src/abi.rs index 1c74aeca5ab1..ad5527f5a778 100644 --- a/compiler/rustc_ty_utils/src/abi.rs +++ b/compiler/rustc_ty_utils/src/abi.rs @@ -254,15 +254,18 @@ fn adjust_for_rust_scalar<'tcx>( if let Some(kind) = pointee.safe { attrs.pointee_align = Some(pointee.align); - // `Box` (`UniqueBorrowed`) are not necessarily dereferenceable - // for the entire duration of the function as they can be deallocated - // at any time. Same for shared mutable references. If LLVM had a - // way to say "dereferenceable on entry" we could use it here. + // `Box` are not necessarily dereferenceable for the entire duration of the function as + // they can be deallocated at any time. Same for non-frozen shared references (see + // ), and for mutable references to + // potentially self-referential types (see + // ). If LLVM had a way + // to say "dereferenceable on entry" we could use it here. attrs.pointee_size = match kind { - PointerKind::UniqueBorrowed - | PointerKind::UniqueBorrowedPinned - | PointerKind::Frozen => pointee.size, - PointerKind::SharedMutable | PointerKind::UniqueOwned => Size::ZERO, + PointerKind::Box { .. } + | PointerKind::SharedRef { frozen: false } + | PointerKind::MutableRef { unpin: false } => Size::ZERO, + PointerKind::SharedRef { frozen: true } + | PointerKind::MutableRef { unpin: true } => pointee.size, }; // The aliasing rules for `Box` are still not decided, but currently we emit @@ -275,18 +278,16 @@ fn adjust_for_rust_scalar<'tcx>( // versions at all anymore. We still support turning it off using -Zmutable-noalias. let noalias_mut_ref = cx.tcx.sess.opts.unstable_opts.mutable_noalias; - // `&mut` pointer parameters never alias other parameters, - // or mutable global data + // `&T` where `T` contains no `UnsafeCell` is immutable, and can be marked as both + // `readonly` and `noalias`, as LLVM's definition of `noalias` is based solely on memory + // dependencies rather than pointer equality. However this only applies to arguments, + // not return values. // - // `&T` where `T` contains no `UnsafeCell` is immutable, - // and can be marked as both `readonly` and `noalias`, as - // LLVM's definition of `noalias` is based solely on memory - // dependencies rather than pointer equality + // `&mut T` and `Box` where `T: Unpin` are unique and hence `noalias`. let no_alias = match kind { - PointerKind::SharedMutable | PointerKind::UniqueBorrowedPinned => false, - PointerKind::UniqueBorrowed => noalias_mut_ref, - PointerKind::UniqueOwned => noalias_for_box, - PointerKind::Frozen => true, + PointerKind::SharedRef { frozen } => frozen, + PointerKind::MutableRef { unpin } => unpin && noalias_mut_ref, + PointerKind::Box { unpin } => unpin && noalias_for_box, }; // We can never add `noalias` in return position; that LLVM attribute has some very surprising semantics // (see ). @@ -294,7 +295,7 @@ fn adjust_for_rust_scalar<'tcx>( attrs.set(ArgAttribute::NoAlias); } - if kind == PointerKind::Frozen && !is_return { + if matches!(kind, PointerKind::SharedRef { frozen: true }) && !is_return { attrs.set(ArgAttribute::ReadOnly); } } diff --git a/compiler/rustc_ty_utils/src/assoc.rs b/compiler/rustc_ty_utils/src/assoc.rs index 424b52309d3a..a6e0f13f6983 100644 --- a/compiler/rustc_ty_utils/src/assoc.rs +++ b/compiler/rustc_ty_utils/src/assoc.rs @@ -22,14 +22,17 @@ fn associated_item_def_ids(tcx: TyCtxt<'_>, def_id: DefId) -> &[DefId] { hir::ItemKind::Impl(ref impl_) => tcx.arena.alloc_from_iter( impl_.items.iter().map(|impl_item_ref| impl_item_ref.id.owner_id.to_def_id()), ), - hir::ItemKind::TraitAlias(..) => &[], _ => span_bug!(item.span, "associated_item_def_ids: not impl or trait"), } } fn associated_items(tcx: TyCtxt<'_>, def_id: DefId) -> ty::AssocItems<'_> { - let items = tcx.associated_item_def_ids(def_id).iter().map(|did| tcx.associated_item(*did)); - ty::AssocItems::new(items) + if tcx.is_trait_alias(def_id) { + ty::AssocItems::new(Vec::new()) + } else { + let items = tcx.associated_item_def_ids(def_id).iter().map(|did| tcx.associated_item(*did)); + ty::AssocItems::new(items) + } } fn impl_item_implementor_ids(tcx: TyCtxt<'_>, impl_id: DefId) -> FxHashMap { diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index 93c9c675c9a6..2aeb255c1641 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -970,7 +970,7 @@ fn variant_info_for_generator<'tcx>( }) .collect(); - let variant_infos: Vec<_> = generator + let mut variant_infos: Vec<_> = generator .variant_fields .iter_enumerated() .map(|(variant_idx, variant_def)| { @@ -1033,6 +1033,15 @@ fn variant_info_for_generator<'tcx>( } }) .collect(); + + // The first three variants are hardcoded to be `UNRESUMED`, `RETURNED` and `POISONED`. + // We will move the `RETURNED` and `POISONED` elements to the end so we + // are left with a sorting order according to the generators yield points: + // First `Unresumed`, then the `SuspendN` followed by `Returned` and `Panicked` (POISONED). + let end_states = variant_infos.drain(1..=2); + let end_states: Vec<_> = end_states.collect(); + variant_infos.extend(end_states); + ( variant_infos, match tag_encoding { diff --git a/config.toml.example b/config.toml.example index 85f058f3664e..df4478bb0cb8 100644 --- a/config.toml.example +++ b/config.toml.example @@ -662,7 +662,8 @@ changelog-seen = 2 # Select LTO mode that will be used for compiling rustc. By default, thin local LTO # (LTO within a single crate) is used (like for any Rust crate). You can also select -# "thin" or "fat" to apply Thin/Fat LTO to the `rustc_driver` dylib. +# "thin" or "fat" to apply Thin/Fat LTO to the `rustc_driver` dylib, or "off" to disable +# LTO entirely. #lto = "thin-local" # ============================================================================= diff --git a/library/core/benches/char/methods.rs b/library/core/benches/char/methods.rs index 9408f83c32f7..5d4df1ac8bd5 100644 --- a/library/core/benches/char/methods.rs +++ b/library/core/benches/char/methods.rs @@ -1,26 +1,26 @@ -use test::Bencher; +use test::{black_box, Bencher}; const CHARS: [char; 9] = ['0', 'x', '2', '5', 'A', 'f', '7', '8', '9']; const RADIX: [u32; 5] = [2, 8, 10, 16, 32]; #[bench] fn bench_to_digit_radix_2(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_digit(2)).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_digit(2)).min()) } #[bench] fn bench_to_digit_radix_10(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_digit(10)).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_digit(10)).min()) } #[bench] fn bench_to_digit_radix_16(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_digit(16)).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_digit(16)).min()) } #[bench] fn bench_to_digit_radix_36(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_digit(36)).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_digit(36)).min()) } #[bench] @@ -31,47 +31,59 @@ fn bench_to_digit_radix_var(b: &mut Bencher) { .cycle() .zip(RADIX.iter().cycle()) .take(10_000) - .map(|(c, radix)| c.to_digit(*radix)) + .map(|(c, radix)| black_box(c).to_digit(*radix)) .min() }) } #[bench] fn bench_to_ascii_uppercase(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_ascii_uppercase()).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_ascii_uppercase()).min()) } #[bench] fn bench_to_ascii_lowercase(b: &mut Bencher) { - b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| c.to_ascii_lowercase()).min()) + b.iter(|| CHARS.iter().cycle().take(10_000).map(|c| black_box(c).to_ascii_lowercase()).min()) } #[bench] fn bench_ascii_mix_to_uppercase(b: &mut Bencher) { - b.iter(|| (0..=255).cycle().take(10_000).map(|b| char::from(b).to_uppercase()).count()) + b.iter(|| { + (0..=255).cycle().take(10_000).map(|b| black_box(char::from(b)).to_uppercase()).count() + }) } #[bench] fn bench_ascii_mix_to_lowercase(b: &mut Bencher) { - b.iter(|| (0..=255).cycle().take(10_000).map(|b| char::from(b).to_lowercase()).count()) + b.iter(|| { + (0..=255).cycle().take(10_000).map(|b| black_box(char::from(b)).to_lowercase()).count() + }) } #[bench] fn bench_ascii_char_to_uppercase(b: &mut Bencher) { - b.iter(|| (0..=127).cycle().take(10_000).map(|b| char::from(b).to_uppercase()).count()) + b.iter(|| { + (0..=127).cycle().take(10_000).map(|b| black_box(char::from(b)).to_uppercase()).count() + }) } #[bench] fn bench_ascii_char_to_lowercase(b: &mut Bencher) { - b.iter(|| (0..=127).cycle().take(10_000).map(|b| char::from(b).to_lowercase()).count()) + b.iter(|| { + (0..=127).cycle().take(10_000).map(|b| black_box(char::from(b)).to_lowercase()).count() + }) } #[bench] fn bench_non_ascii_char_to_uppercase(b: &mut Bencher) { - b.iter(|| (128..=255).cycle().take(10_000).map(|b| char::from(b).to_uppercase()).count()) + b.iter(|| { + (128..=255).cycle().take(10_000).map(|b| black_box(char::from(b)).to_uppercase()).count() + }) } #[bench] fn bench_non_ascii_char_to_lowercase(b: &mut Bencher) { - b.iter(|| (128..=255).cycle().take(10_000).map(|b| char::from(b).to_lowercase()).count()) + b.iter(|| { + (128..=255).cycle().take(10_000).map(|b| black_box(char::from(b)).to_lowercase()).count() + }) } diff --git a/library/core/benches/num/flt2dec/strategy/dragon.rs b/library/core/benches/num/flt2dec/strategy/dragon.rs index 319b9773e49f..377c99effd03 100644 --- a/library/core/benches/num/flt2dec/strategy/dragon.rs +++ b/library/core/benches/num/flt2dec/strategy/dragon.rs @@ -1,14 +1,14 @@ use super::super::*; use core::num::flt2dec::strategy::dragon::*; use std::mem::MaybeUninit; -use test::Bencher; +use test::{black_box, Bencher}; #[bench] fn bench_small_shortest(b: &mut Bencher) { let decoded = decode_finite(3.141592f64); let mut buf = [MaybeUninit::new(0); MAX_SIG_DIGITS]; b.iter(|| { - format_shortest(&decoded, &mut buf); + format_shortest(black_box(&decoded), &mut buf); }); } @@ -17,7 +17,7 @@ fn bench_big_shortest(b: &mut Bencher) { let decoded = decode_finite(f64::MAX); let mut buf = [MaybeUninit::new(0); MAX_SIG_DIGITS]; b.iter(|| { - format_shortest(&decoded, &mut buf); + format_shortest(black_box(&decoded), &mut buf); }); } @@ -26,7 +26,7 @@ fn bench_small_exact_3(b: &mut Bencher) { let decoded = decode_finite(3.141592f64); let mut buf = [MaybeUninit::new(0); 3]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } @@ -35,7 +35,7 @@ fn bench_big_exact_3(b: &mut Bencher) { let decoded = decode_finite(f64::MAX); let mut buf = [MaybeUninit::new(0); 3]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } @@ -44,7 +44,7 @@ fn bench_small_exact_12(b: &mut Bencher) { let decoded = decode_finite(3.141592f64); let mut buf = [MaybeUninit::new(0); 12]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } @@ -53,7 +53,7 @@ fn bench_big_exact_12(b: &mut Bencher) { let decoded = decode_finite(f64::MAX); let mut buf = [MaybeUninit::new(0); 12]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } @@ -62,7 +62,7 @@ fn bench_small_exact_inf(b: &mut Bencher) { let decoded = decode_finite(3.141592f64); let mut buf = [MaybeUninit::new(0); 1024]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } @@ -71,6 +71,6 @@ fn bench_big_exact_inf(b: &mut Bencher) { let decoded = decode_finite(f64::MAX); let mut buf = [MaybeUninit::new(0); 1024]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } diff --git a/library/core/benches/num/flt2dec/strategy/grisu.rs b/library/core/benches/num/flt2dec/strategy/grisu.rs index 8e47a046cdea..6bea5e55d37b 100644 --- a/library/core/benches/num/flt2dec/strategy/grisu.rs +++ b/library/core/benches/num/flt2dec/strategy/grisu.rs @@ -1,7 +1,7 @@ use super::super::*; use core::num::flt2dec::strategy::grisu::*; use std::mem::MaybeUninit; -use test::Bencher; +use test::{black_box, Bencher}; pub fn decode_finite(v: T) -> Decoded { match decode(v).1 { @@ -15,7 +15,7 @@ fn bench_small_shortest(b: &mut Bencher) { let decoded = decode_finite(3.141592f64); let mut buf = [MaybeUninit::new(0); MAX_SIG_DIGITS]; b.iter(|| { - format_shortest(&decoded, &mut buf); + format_shortest(black_box(&decoded), &mut buf); }); } @@ -24,7 +24,7 @@ fn bench_big_shortest(b: &mut Bencher) { let decoded = decode_finite(f64::MAX); let mut buf = [MaybeUninit::new(0); MAX_SIG_DIGITS]; b.iter(|| { - format_shortest(&decoded, &mut buf); + format_shortest(black_box(&decoded), &mut buf); }); } @@ -33,7 +33,7 @@ fn bench_small_exact_3(b: &mut Bencher) { let decoded = decode_finite(3.141592f64); let mut buf = [MaybeUninit::new(0); 3]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } @@ -42,7 +42,7 @@ fn bench_big_exact_3(b: &mut Bencher) { let decoded = decode_finite(f64::MAX); let mut buf = [MaybeUninit::new(0); 3]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } @@ -51,7 +51,7 @@ fn bench_small_exact_12(b: &mut Bencher) { let decoded = decode_finite(3.141592f64); let mut buf = [MaybeUninit::new(0); 12]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } @@ -60,7 +60,7 @@ fn bench_big_exact_12(b: &mut Bencher) { let decoded = decode_finite(f64::MAX); let mut buf = [MaybeUninit::new(0); 12]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } @@ -69,7 +69,7 @@ fn bench_small_exact_inf(b: &mut Bencher) { let decoded = decode_finite(3.141592f64); let mut buf = [MaybeUninit::new(0); 1024]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } @@ -78,6 +78,6 @@ fn bench_big_exact_inf(b: &mut Bencher) { let decoded = decode_finite(f64::MAX); let mut buf = [MaybeUninit::new(0); 1024]; b.iter(|| { - format_exact(&decoded, &mut buf, i16::MIN); + format_exact(black_box(&decoded), &mut buf, i16::MIN); }); } diff --git a/library/core/src/cmp.rs b/library/core/src/cmp.rs index b75ae996e485..f290e5baf9dd 100644 --- a/library/core/src/cmp.rs +++ b/library/core/src/cmp.rs @@ -22,7 +22,6 @@ #![stable(feature = "rust1", since = "1.0.0")] -use crate::const_closure::ConstFnMutClosure; use crate::marker::Destruct; use self::Ordering::*; @@ -1291,17 +1290,7 @@ where F: ~const Destruct, K: ~const Destruct, { - const fn imp K, K: ~const Ord>( - f: &mut F, - (v1, v2): (&T, &T), - ) -> Ordering - where - T: ~const Destruct, - K: ~const Destruct, - { - f(v1).cmp(&f(v2)) - } - max_by(v1, v2, ConstFnMutClosure::new(&mut f, imp)) + max_by(v1, v2, const |v1, v2| f(v1).cmp(&f(v2))) } // Implementation of PartialEq, Eq, PartialOrd and Ord for primitive types diff --git a/library/core/src/const_closure.rs b/library/core/src/const_closure.rs deleted file mode 100644 index 97900a4862f5..000000000000 --- a/library/core/src/const_closure.rs +++ /dev/null @@ -1,78 +0,0 @@ -use crate::marker::Destruct; -use crate::marker::Tuple; - -/// Struct representing a closure with mutably borrowed data. -/// -/// Example: -/// ```no_build -/// #![feature(const_mut_refs)] -/// use crate::const_closure::ConstFnMutClosure; -/// const fn imp(state: &mut i32, (arg,): (i32,)) -> i32 { -/// *state += arg; -/// *state -/// } -/// let mut i = 5; -/// let mut cl = ConstFnMutClosure::new(&mut i, imp); -/// -/// assert!(7 == cl(2)); -/// assert!(8 == cl(1)); -/// ``` -pub(crate) struct ConstFnMutClosure { - /// The Data captured by the Closure. - /// Must be either a (mutable) reference or a tuple of (mutable) references. - pub data: CapturedData, - /// The Function of the Closure, must be: Fn(CapturedData, ClosureArgs) -> ClosureReturn - pub func: Function, -} -impl<'a, CapturedData: ?Sized, Function> ConstFnMutClosure<&'a mut CapturedData, Function> { - /// Function for creating a new closure. - /// - /// `data` is the a mutable borrow of data that is captured from the environment. - /// If you want Data to be a tuple of mutable Borrows, the struct must be constructed manually. - /// - /// `func` is the function of the closure, it gets the data and a tuple of the arguments closure - /// and return the return value of the closure. - pub(crate) const fn new( - data: &'a mut CapturedData, - func: Function, - ) -> Self - where - Function: ~const Fn(&mut CapturedData, ClosureArguments) -> ClosureReturnValue, - { - Self { data, func } - } -} - -macro_rules! impl_fn_mut_tuple { - ($($var:ident)*) => { - #[allow(unused_parens)] - impl<'a, $($var,)* ClosureArguments: Tuple, Function, ClosureReturnValue> const - FnOnce for ConstFnMutClosure<($(&'a mut $var),*), Function> - where - Function: ~const Fn(($(&mut $var),*), ClosureArguments) -> ClosureReturnValue+ ~const Destruct, - { - type Output = ClosureReturnValue; - - extern "rust-call" fn call_once(mut self, args: ClosureArguments) -> Self::Output { - self.call_mut(args) - } - } - #[allow(unused_parens)] - impl<'a, $($var,)* ClosureArguments: Tuple, Function, ClosureReturnValue> const - FnMut for ConstFnMutClosure<($(&'a mut $var),*), Function> - where - Function: ~const Fn(($(&mut $var),*), ClosureArguments)-> ClosureReturnValue, - { - extern "rust-call" fn call_mut(&mut self, args: ClosureArguments) -> Self::Output { - #[allow(non_snake_case)] - let ($($var),*) = &mut self.data; - (self.func)(($($var),*), args) - } - } - }; -} -impl_fn_mut_tuple!(A); -impl_fn_mut_tuple!(A B); -impl_fn_mut_tuple!(A B C); -impl_fn_mut_tuple!(A B C D); -impl_fn_mut_tuple!(A B C D E); diff --git a/library/core/src/iter/adapters/array_chunks.rs b/library/core/src/iter/adapters/array_chunks.rs index 5e4211058aa6..af786609757b 100644 --- a/library/core/src/iter/adapters/array_chunks.rs +++ b/library/core/src/iter/adapters/array_chunks.rs @@ -1,5 +1,4 @@ use crate::array; -use crate::const_closure::ConstFnMutClosure; use crate::iter::{ByRefSized, FusedIterator, Iterator, TrustedRandomAccessNoCoerce}; use crate::mem::{self, MaybeUninit}; use crate::ops::{ControlFlow, NeverShortCircuit, Try}; @@ -189,13 +188,12 @@ where I: Iterator, { #[inline] - default fn fold(mut self, init: B, mut f: F) -> B + default fn fold(mut self, init: B, f: F) -> B where Self: Sized, F: FnMut(B, Self::Item) -> B, { - let fold = ConstFnMutClosure::new(&mut f, NeverShortCircuit::wrap_mut_2_imp); - self.try_fold(init, fold).0 + self.try_fold(init, NeverShortCircuit::wrap_mut_2(f)).0 } } diff --git a/library/core/src/iter/adapters/by_ref_sized.rs b/library/core/src/iter/adapters/by_ref_sized.rs index 1945e402ff50..477e7117c3ea 100644 --- a/library/core/src/iter/adapters/by_ref_sized.rs +++ b/library/core/src/iter/adapters/by_ref_sized.rs @@ -1,7 +1,4 @@ -use crate::{ - const_closure::ConstFnMutClosure, - ops::{NeverShortCircuit, Try}, -}; +use crate::ops::{NeverShortCircuit, Try}; /// Like `Iterator::by_ref`, but requiring `Sized` so it can forward generics. /// @@ -39,13 +36,12 @@ impl Iterator for ByRefSized<'_, I> { } #[inline] - fn fold(self, init: B, mut f: F) -> B + fn fold(self, init: B, f: F) -> B where F: FnMut(B, Self::Item) -> B, { // `fold` needs ownership, so this can't forward directly. - I::try_fold(self.0, init, ConstFnMutClosure::new(&mut f, NeverShortCircuit::wrap_mut_2_imp)) - .0 + I::try_fold(self.0, init, NeverShortCircuit::wrap_mut_2(f)).0 } #[inline] @@ -76,17 +72,12 @@ impl DoubleEndedIterator for ByRefSized<'_, I> { } #[inline] - fn rfold(self, init: B, mut f: F) -> B + fn rfold(self, init: B, f: F) -> B where F: FnMut(B, Self::Item) -> B, { // `rfold` needs ownership, so this can't forward directly. - I::try_rfold( - self.0, - init, - ConstFnMutClosure::new(&mut f, NeverShortCircuit::wrap_mut_2_imp), - ) - .0 + I::try_rfold(self.0, init, NeverShortCircuit::wrap_mut_2(f)).0 } #[inline] diff --git a/library/core/src/iter/mod.rs b/library/core/src/iter/mod.rs index bb35d50b4bfd..00f57fbcc616 100644 --- a/library/core/src/iter/mod.rs +++ b/library/core/src/iter/mod.rs @@ -362,15 +362,13 @@ macro_rules! impl_fold_via_try_fold { }; (@internal $fold:ident -> $try_fold:ident) => { #[inline] - fn $fold(mut self, init: AAA, mut fold: FFF) -> AAA + fn $fold(mut self, init: AAA, fold: FFF) -> AAA where FFF: FnMut(AAA, Self::Item) -> AAA, { - use crate::const_closure::ConstFnMutClosure; use crate::ops::NeverShortCircuit; - let fold = ConstFnMutClosure::new(&mut fold, NeverShortCircuit::wrap_mut_2_imp); - self.$try_fold(init, fold).0 + self.$try_fold(init, NeverShortCircuit::wrap_mut_2(fold)).0 } }; } diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs index 8961ef4ab481..dc0702c467a4 100644 --- a/library/core/src/lib.rs +++ b/library/core/src/lib.rs @@ -376,8 +376,6 @@ mod bool; mod tuple; mod unit; -mod const_closure; - #[stable(feature = "core_primitive", since = "1.43.0")] pub mod primitive; diff --git a/library/core/src/num/uint_macros.rs b/library/core/src/num/uint_macros.rs index 1c97c4686283..dcc0835ecd6d 100644 --- a/library/core/src/num/uint_macros.rs +++ b/library/core/src/num/uint_macros.rs @@ -18,7 +18,7 @@ macro_rules! uint_impl { pub const MIN: Self = 0; /// The largest value that can be represented by this integer type - #[doc = concat!("(2", $BITS, " − 1", $bound_condition, ")")] + #[doc = concat!("(2", $BITS, " − 1", $bound_condition, ").")] /// /// # Examples /// diff --git a/library/core/src/ops/arith.rs b/library/core/src/ops/arith.rs index cc13db5c9565..0c7ee9630c6e 100644 --- a/library/core/src/ops/arith.rs +++ b/library/core/src/ops/arith.rs @@ -86,7 +86,8 @@ pub trait Add { /// ``` /// assert_eq!(12 + 1, 13); /// ``` - #[must_use] + #[must_use = "this returns the result of the operation, without modifying the original"] + #[rustc_diagnostic_item = "add"] #[stable(feature = "rust1", since = "1.0.0")] fn add(self, rhs: Rhs) -> Self::Output; } @@ -195,7 +196,8 @@ pub trait Sub { /// ``` /// assert_eq!(12 - 1, 11); /// ``` - #[must_use] + #[must_use = "this returns the result of the operation, without modifying the original"] + #[rustc_diagnostic_item = "sub"] #[stable(feature = "rust1", since = "1.0.0")] fn sub(self, rhs: Rhs) -> Self::Output; } @@ -325,7 +327,8 @@ pub trait Mul { /// ``` /// assert_eq!(12 * 2, 24); /// ``` - #[must_use] + #[must_use = "this returns the result of the operation, without modifying the original"] + #[rustc_diagnostic_item = "mul"] #[stable(feature = "rust1", since = "1.0.0")] fn mul(self, rhs: Rhs) -> Self::Output; } @@ -459,7 +462,8 @@ pub trait Div { /// ``` /// assert_eq!(12 / 2, 6); /// ``` - #[must_use] + #[must_use = "this returns the result of the operation, without modifying the original"] + #[rustc_diagnostic_item = "div"] #[stable(feature = "rust1", since = "1.0.0")] fn div(self, rhs: Rhs) -> Self::Output; } @@ -562,7 +566,8 @@ pub trait Rem { /// ``` /// assert_eq!(12 % 10, 2); /// ``` - #[must_use] + #[must_use = "this returns the result of the operation, without modifying the original"] + #[rustc_diagnostic_item = "rem"] #[stable(feature = "rust1", since = "1.0.0")] fn rem(self, rhs: Rhs) -> Self::Output; } @@ -678,7 +683,8 @@ pub trait Neg { /// let x: i32 = 12; /// assert_eq!(-x, -12); /// ``` - #[must_use] + #[must_use = "this returns the result of the operation, without modifying the original"] + #[rustc_diagnostic_item = "neg"] #[stable(feature = "rust1", since = "1.0.0")] fn neg(self) -> Self::Output; } diff --git a/library/core/src/ops/try_trait.rs b/library/core/src/ops/try_trait.rs index 84a69046807c..9108fc630452 100644 --- a/library/core/src/ops/try_trait.rs +++ b/library/core/src/ops/try_trait.rs @@ -379,13 +379,18 @@ pub(crate) type ChangeOutputType = <::Residual as Residual>:: pub(crate) struct NeverShortCircuit(pub T); impl NeverShortCircuit { - /// Implementation for building `ConstFnMutClosure` for wrapping the output of a ~const FnMut in a `NeverShortCircuit`. #[inline] - pub const fn wrap_mut_2_imp T>( - f: &mut F, - (a, b): (A, B), - ) -> NeverShortCircuit { - NeverShortCircuit(f(a, b)) + pub fn wrap_mut_2( + mut f: impl ~const FnMut(A, B) -> T, + ) -> impl ~const FnMut(A, B) -> Self { + cfg_if! { + if #[cfg(bootstrap)] { + #[allow(unused_parens)] + (const move |a, b| NeverShortCircuit(f(a, b))) + } else { + const move |a, b| NeverShortCircuit(f(a, b)) + } + } } } diff --git a/library/core/src/option.rs b/library/core/src/option.rs index c43b728022d2..5d5e95590344 100644 --- a/library/core/src/option.rs +++ b/library/core/src/option.rs @@ -943,7 +943,7 @@ impl Option { // Transforming contained values ///////////////////////////////////////////////////////////////////////// - /// Maps an `Option` to `Option` by applying a function to a contained value. + /// Maps an `Option` to `Option` by applying a function to a contained value (if `Some`) or returns `None` (if `None`). /// /// # Examples /// @@ -955,8 +955,10 @@ impl Option { /// let maybe_some_string = Some(String::from("Hello, World!")); /// // `Option::map` takes self *by value*, consuming `maybe_some_string` /// let maybe_some_len = maybe_some_string.map(|s| s.len()); - /// /// assert_eq!(maybe_some_len, Some(13)); + /// + /// let x: Option<&str> = None; + /// assert_eq!(x.map(|s| s.len()), None); /// ``` #[inline] #[stable(feature = "rust1", since = "1.0.0")] diff --git a/library/std/src/collections/hash/map.rs b/library/std/src/collections/hash/map.rs index df490358827e..742c4cc7c553 100644 --- a/library/std/src/collections/hash/map.rs +++ b/library/std/src/collections/hash/map.rs @@ -238,7 +238,7 @@ impl HashMap { /// /// The hash map will be able to hold at least `capacity` elements without /// reallocating. This method is allowed to allocate for more elements than - /// `capacity`. If `capacity` is 0, the hash set will not allocate. + /// `capacity`. If `capacity` is 0, the hash map will not allocate. /// /// # Examples /// diff --git a/library/std/src/f32.rs b/library/std/src/f32.rs index 4e3007624631..6b1f0cba82df 100644 --- a/library/std/src/f32.rs +++ b/library/std/src/f32.rs @@ -69,8 +69,8 @@ impl f32 { unsafe { intrinsics::ceilf32(self) } } - /// Returns the nearest integer to `self`. Round half-way cases away from - /// `0.0`. + /// Returns the nearest integer to `self`. If a value is half-way between two + /// integers, round away from `0.0`. /// /// # Examples /// diff --git a/library/std/src/f64.rs b/library/std/src/f64.rs index ec67fdad4f72..16359766b510 100644 --- a/library/std/src/f64.rs +++ b/library/std/src/f64.rs @@ -69,8 +69,8 @@ impl f64 { unsafe { intrinsics::ceilf64(self) } } - /// Returns the nearest integer to `self`. Round half-way cases away from - /// `0.0`. + /// Returns the nearest integer to `self`. If a value is half-way between two + /// integers, round away from `0.0`. /// /// # Examples /// diff --git a/library/std/src/io/error.rs b/library/std/src/io/error.rs index 3cabf24492ea..324d698eaeb1 100644 --- a/library/std/src/io/error.rs +++ b/library/std/src/io/error.rs @@ -88,12 +88,23 @@ impl From for Error { // doesn't accidentally get printed. #[cfg_attr(test, derive(Debug))] enum ErrorData { - Os(i32), + Os(RawOsError), Simple(ErrorKind), SimpleMessage(&'static SimpleMessage), Custom(C), } +/// The type of raw OS error codes returned by [`Error::raw_os_error`]. +/// +/// This is an [`i32`] on all currently supported platforms, but platforms +/// added in the future (such as UEFI) may use a different primitive type like +/// [`usize`]. Use `as`or [`into`] conversions where applicable to ensure maximum +/// portability. +/// +/// [`into`]: Into::into +#[unstable(feature = "raw_os_error_ty", issue = "none")] +pub type RawOsError = i32; + // `#[repr(align(4))]` is probably redundant, it should have that value or // higher already. We include it just because repr_bitpacked.rs's encoding // requires an alignment >= 4 (note that `#[repr(align)]` will not reduce the @@ -579,7 +590,7 @@ impl Error { #[must_use] #[inline] pub fn last_os_error() -> Error { - Error::from_raw_os_error(sys::os::errno() as i32) + Error::from_raw_os_error(sys::os::errno()) } /// Creates a new instance of an [`Error`] from a particular OS error code. @@ -610,7 +621,7 @@ impl Error { #[stable(feature = "rust1", since = "1.0.0")] #[must_use] #[inline] - pub fn from_raw_os_error(code: i32) -> Error { + pub fn from_raw_os_error(code: RawOsError) -> Error { Error { repr: Repr::new_os(code) } } @@ -646,7 +657,7 @@ impl Error { #[stable(feature = "rust1", since = "1.0.0")] #[must_use] #[inline] - pub fn raw_os_error(&self) -> Option { + pub fn raw_os_error(&self) -> Option { match self.repr.data() { ErrorData::Os(i) => Some(i), ErrorData::Custom(..) => None, diff --git a/library/std/src/io/error/repr_bitpacked.rs b/library/std/src/io/error/repr_bitpacked.rs index 3581484050dd..f94f88bac417 100644 --- a/library/std/src/io/error/repr_bitpacked.rs +++ b/library/std/src/io/error/repr_bitpacked.rs @@ -102,7 +102,7 @@ //! to use a pointer type to store something that may hold an integer, some of //! the time. -use super::{Custom, ErrorData, ErrorKind, SimpleMessage}; +use super::{Custom, ErrorData, ErrorKind, RawOsError, SimpleMessage}; use alloc::boxed::Box; use core::marker::PhantomData; use core::mem::{align_of, size_of}; @@ -172,7 +172,7 @@ impl Repr { } #[inline] - pub(super) fn new_os(code: i32) -> Self { + pub(super) fn new_os(code: RawOsError) -> Self { let utagged = ((code as usize) << 32) | TAG_OS; // Safety: `TAG_OS` is not zero, so the result of the `|` is not 0. let res = Self(unsafe { NonNull::new_unchecked(ptr::invalid_mut(utagged)) }, PhantomData); @@ -250,7 +250,7 @@ where let bits = ptr.as_ptr().addr(); match bits & TAG_MASK { TAG_OS => { - let code = ((bits as i64) >> 32) as i32; + let code = ((bits as i64) >> 32) as RawOsError; ErrorData::Os(code) } TAG_SIMPLE => { @@ -374,6 +374,9 @@ static_assert!((TAG_MASK + 1).is_power_of_two()); static_assert!(align_of::() >= TAG_MASK + 1); static_assert!(align_of::() >= TAG_MASK + 1); +// `RawOsError` must be an alias for `i32`. +const _: fn(RawOsError) -> i32 = |os| os; + static_assert!(@usize_eq: TAG_MASK & TAG_SIMPLE_MESSAGE, TAG_SIMPLE_MESSAGE); static_assert!(@usize_eq: TAG_MASK & TAG_CUSTOM, TAG_CUSTOM); static_assert!(@usize_eq: TAG_MASK & TAG_OS, TAG_OS); diff --git a/library/std/src/io/error/repr_unpacked.rs b/library/std/src/io/error/repr_unpacked.rs index d6ad55b99f5c..093fde33757e 100644 --- a/library/std/src/io/error/repr_unpacked.rs +++ b/library/std/src/io/error/repr_unpacked.rs @@ -2,7 +2,7 @@ //! non-64bit targets, where the packed 64 bit representation wouldn't work, and //! would have no benefit. -use super::{Custom, ErrorData, ErrorKind, SimpleMessage}; +use super::{Custom, ErrorData, ErrorKind, RawOsError, SimpleMessage}; use alloc::boxed::Box; type Inner = ErrorData>; @@ -18,7 +18,7 @@ impl Repr { Self(Inner::Custom(b)) } #[inline] - pub(super) fn new_os(code: i32) -> Self { + pub(super) fn new_os(code: RawOsError) -> Self { Self(Inner::Os(code)) } #[inline] diff --git a/library/std/src/io/error/tests.rs b/library/std/src/io/error/tests.rs index 9aea62a5b940..36d52aef03cb 100644 --- a/library/std/src/io/error/tests.rs +++ b/library/std/src/io/error/tests.rs @@ -71,7 +71,7 @@ fn test_const() { #[test] fn test_os_packing() { - for code in -20i32..20i32 { + for code in -20..20 { let e = Error::from_raw_os_error(code); assert_eq!(e.raw_os_error(), Some(code)); assert_matches!( diff --git a/library/std/src/io/mod.rs b/library/std/src/io/mod.rs index de528e85368c..5907ba5d5fbf 100644 --- a/library/std/src/io/mod.rs +++ b/library/std/src/io/mod.rs @@ -262,6 +262,8 @@ use crate::sys_common::memchr; #[stable(feature = "bufwriter_into_parts", since = "1.56.0")] pub use self::buffered::WriterPanicked; +#[unstable(feature = "raw_os_error_ty", issue = "none")] +pub use self::error::RawOsError; pub(crate) use self::stdio::attempt_print_to_stderr; #[unstable(feature = "internal_output_capture", issue = "none")] #[doc(no_inline, hidden)] diff --git a/src/bootstrap/README.md b/src/bootstrap/README.md index 8dce9e79e16b..71eee8968e27 100644 --- a/src/bootstrap/README.md +++ b/src/bootstrap/README.md @@ -4,105 +4,31 @@ This is an in-progress README which is targeted at helping to explain how Rust is bootstrapped and in general, some of the technical details of the build system. -## Using rustbuild +Note that this README only covers internal information, not how to use the tool. +Please check [bootstrapping dev guide][bootstrapping-dev-guide] for further information. -The rustbuild build system has a primary entry point, a top level `x.py` script: +[bootstrapping-dev-guide]: https://rustc-dev-guide.rust-lang.org/building/bootstrapping.html -```sh -$ python ./x.py build -``` +## Introduction -Note that if you're on Unix, you should be able to execute the script directly: +The build system defers most of the complicated logic managing invocations +of rustc and rustdoc to Cargo itself. However, moving through various stages +and copying artifacts is still necessary for it to do. Each time rustbuild +is invoked, it will iterate through the list of predefined steps and execute +each serially in turn if it matches the paths passed or is a default rule. +For each step rustbuild relies on the step internally being incremental and +parallel. Note, though, that the `-j` parameter to rustbuild gets forwarded +to appropriate test harnesses and such. -```sh -$ ./x.py build -``` - -The script accepts commands, flags, and arguments to determine what to do: - -* `build` - a general purpose command for compiling code. Alone, `build` will - bootstrap the entire compiler, and otherwise, arguments passed indicate what to - build. For example: - - ``` - # build the whole compiler - ./x.py build --stage 2 - - # build the stage1 compiler - ./x.py build - - # build stage0 libstd - ./x.py build --stage 0 library/std - - # build a particular crate in stage0 - ./x.py build --stage 0 library/test - ``` - - If files that would normally be rebuilt from stage 0 are dirty, the rebuild can be - overridden using `--keep-stage 0`. Using `--keep-stage n` will skip all steps - that belong to stage n or earlier: - - ``` - # build stage 1, keeping old build products for stage 0 - ./x.py build --keep-stage 0 - ``` - -* `test` - a command for executing unit tests. Like the `build` command, this - will execute the entire test suite by default, and otherwise, it can be used to - select which test suite is run: - - ``` - # run all unit tests - ./x.py test - - # execute tool tests - ./x.py test tidy - - # execute the UI test suite - ./x.py test tests/ui - - # execute only some tests in the UI test suite - ./x.py test tests/ui --test-args substring-of-test-name - - # execute tests in the standard library in stage0 - ./x.py test --stage 0 library/std - - # execute tests in the core and standard library in stage0, - # without running doc tests (thus avoid depending on building the compiler) - ./x.py test --stage 0 --no-doc library/core library/std - - # execute all doc tests - ./x.py test src/doc - ``` - -* `doc` - a command for building documentation. Like above, can take arguments - for what to document. - -## Configuring rustbuild - -rustbuild offers a TOML-based configuration system with a `config.toml` -file. An example of this configuration can be found at `config.toml.example`, -and the configuration file can also be passed as `--config path/to/config.toml` -if the build system is being invoked manually (via the python script). - -You can generate a config.toml using `./configure` options if you want to automate creating the file without having to edit it. - -Finally, rustbuild makes use of the [cc-rs crate] which has [its own -method][env-vars] of configuring C compilers and C flags via environment -variables. - -[cc-rs crate]: https://github.com/alexcrichton/cc-rs -[env-vars]: https://github.com/alexcrichton/cc-rs#external-configuration-via-environment-variables - -## Build stages +## Build phases The rustbuild build system goes through a few phases to actually build the compiler. What actually happens when you invoke rustbuild is: -1. The entry point script, `x.py` is run. This script is - responsible for downloading the stage0 compiler/Cargo binaries, and it then - compiles the build system itself (this folder). Finally, it then invokes the - actual `bootstrap` binary build system. +1. The entry point script(`x` for unix like systems, `x.ps1` for windows systems, + `x.py` cross-platform) is run. This script is responsible for downloading the stage0 + compiler/Cargo binaries, and it then compiles the build system itself (this folder). + Finally, it then invokes the actual `bootstrap` binary build system. 2. In Rust, `bootstrap` will slurp up all configuration, perform a number of sanity checks (whether compilers exist, for example), and then start building the stage0 artifacts. @@ -115,24 +41,6 @@ compiler. What actually happens when you invoke rustbuild is: The goal of each stage is to (a) leverage Cargo as much as possible and failing that (b) leverage Rust as much as possible! -## Incremental builds - -You can configure rustbuild to use incremental compilation with the -`--incremental` flag: - -```sh -$ ./x.py build --incremental -``` - -The `--incremental` flag will store incremental compilation artifacts -in `build//stage0-incremental`. Note that we only use incremental -compilation for the stage0 -> stage1 compilation -- this is because -the stage1 compiler is changing, and we don't try to cache and reuse -incremental artifacts across different versions of the compiler. - -You can always drop the `--incremental` to build as normal (but you -will still be using the local nightly as your bootstrap). - ## Directory Layout This build system houses all output under the `build` directory, which looks @@ -236,63 +144,31 @@ build/ # system will link (using hard links) output from stageN-{std,rustc} into # each of these directories. # - # In theory, there is no extra build output in these directories. + # In theory these are working rustc sysroot directories, meaning there is + # no extra build output in these directories. stage1/ stage2/ stage3/ ``` -## Cargo projects - -The current build is unfortunately not quite as simple as `cargo build` in a -directory, but rather the compiler is split into three different Cargo projects: - -* `library/std` - the standard library -* `library/test` - testing support, depends on libstd -* `compiler/rustc` - the actual compiler itself - -Each "project" has a corresponding Cargo.lock file with all dependencies, and -this means that building the compiler involves running Cargo three times. The -structure here serves two goals: - -1. Facilitating dependencies coming from crates.io. These dependencies don't - depend on `std`, so libstd is a separate project compiled ahead of time - before the actual compiler builds. -2. Splitting "host artifacts" from "target artifacts". That is, when building - code for an arbitrary target, you don't need the entire compiler, but you'll - end up needing libraries like libtest that depend on std but also want to use - crates.io dependencies. Hence, libtest is split out as its own project that - is sequenced after `std` but before `rustc`. This project is built for all - targets. - -There is some loss in build parallelism here because libtest can be compiled in -parallel with a number of rustc artifacts, but in theory, the loss isn't too bad! - -## Build tools - -We've actually got quite a few tools that we use in the compiler's build system -and for testing. To organize these, each tool is a project in `src/tools` with a -corresponding `Cargo.toml`. All tools are compiled with Cargo (currently having -independent `Cargo.lock` files) and do not currently explicitly depend on the -compiler or standard library. Compiling each tool is sequenced after the -appropriate libstd/libtest/librustc compile above. - ## Extending rustbuild -So, you'd like to add a feature to the rustbuild build system or just fix a bug. -Great! One of the major motivational factors for moving away from `make` is that -Rust is in theory much easier to read, modify, and write. If you find anything -excessively confusing, please open an issue on this, and we'll try to get it -documented or simplified, pronto. +When you use the bootstrap system, you'll call it through the entry point script +(`x`, `x.ps1`, or `x.py`). However, most of the code lives in `src/bootstrap`. +`bootstrap` has a difficult problem: it is written in Rust, but yet it is run +before the Rust compiler is built! To work around this, there are two components +of bootstrap: the main one written in rust, and `bootstrap.py`. `bootstrap.py` +is what gets run by entry point script. It takes care of downloading the `stage0` +compiler, which will then build the bootstrap binary written in Rust. -First up, you'll probably want to read over the documentation above, as that'll -give you a high level overview of what rustbuild is doing. You also probably -want to play around a bit yourself by just getting it up and running before you -dive too much into the actual build system itself. +Because there are two separate codebases behind `x.py`, they need to +be kept in sync. In particular, both `bootstrap.py` and the bootstrap binary +parse `config.toml` and read the same command line arguments. `bootstrap.py` +keeps these in sync by setting various environment variables, and the +programs sometimes have to add arguments that are explicitly ignored, to be +read by the other. -After that, each module in rustbuild should have enough documentation to keep -you up and running. Some general areas that you may be interested in modifying -are: +Some general areas that you may be interested in modifying are: * Adding a new build tool? Take a look at `bootstrap/tool.rs` for examples of other tools. @@ -320,8 +196,9 @@ A 'major change' includes Changes that do not affect contributors to the compiler or users building rustc from source don't need an update to `VERSION`. -If you have any questions, feel free to reach out on the `#t-infra` channel in -the [Rust Zulip server][rust-zulip] or ask on internals.rust-lang.org. When -you encounter bugs, please file issues on the rust-lang/rust issue tracker. +If you have any questions, feel free to reach out on the `#t-infra/bootstrap` channel +at [Rust Bootstrap Zulip server][rust-bootstrap-zulip]. When you encounter bugs, +please file issues on the [Rust issue tracker][rust-issue-tracker]. -[rust-zulip]: https://rust-lang.zulipchat.com/#narrow/stream/242791-t-infra +[rust-bootstrap-zulip]: https://rust-lang.zulipchat.com/#narrow/stream/t-infra.2Fbootstrap +[rust-issue-tracker]: https://github.com/rust-lang/rust/issues diff --git a/src/bootstrap/compile.rs b/src/bootstrap/compile.rs index 68d1db0160a2..07c0d2233cae 100644 --- a/src/bootstrap/compile.rs +++ b/src/bootstrap/compile.rs @@ -379,6 +379,9 @@ pub fn std_cargo(builder: &Builder<'_>, target: TargetSelection, stage: u32, car if stage >= 1 { cargo.rustflag("-Cembed-bitcode=yes"); } + if builder.config.rust_lto == RustcLto::Off { + cargo.rustflag("-Clto=off"); + } // By default, rustc does not include unwind tables unless they are required // for a particular target. They are not required by RISC-V targets, but @@ -722,6 +725,13 @@ impl Step for Rustc { cargo.rustflag("-Cembed-bitcode=yes"); } RustcLto::ThinLocal => { /* Do nothing, this is the default */ } + RustcLto::Off => { + cargo.rustflag("-Clto=off"); + } + } + } else { + if builder.config.rust_lto == RustcLto::Off { + cargo.rustflag("-Clto=off"); } } diff --git a/src/bootstrap/config.rs b/src/bootstrap/config.rs index 165502b0a41d..e5fad5389697 100644 --- a/src/bootstrap/config.rs +++ b/src/bootstrap/config.rs @@ -333,8 +333,9 @@ impl SplitDebuginfo { } /// LTO mode used for compiling rustc itself. -#[derive(Default, Clone)] +#[derive(Default, Clone, PartialEq)] pub enum RustcLto { + Off, #[default] ThinLocal, Thin, @@ -349,6 +350,7 @@ impl std::str::FromStr for RustcLto { "thin-local" => Ok(RustcLto::ThinLocal), "thin" => Ok(RustcLto::Thin), "fat" => Ok(RustcLto::Fat), + "off" => Ok(RustcLto::Off), _ => Err(format!("Invalid value for rustc LTO: {}", s)), } } diff --git a/src/bootstrap/defaults/config.compiler.toml b/src/bootstrap/defaults/config.compiler.toml index 2f4ccb825c4d..b98b13119e8a 100644 --- a/src/bootstrap/defaults/config.compiler.toml +++ b/src/bootstrap/defaults/config.compiler.toml @@ -12,6 +12,8 @@ debug-logging = true incremental = true # Print backtrace on internal compiler errors during bootstrap backtrace-on-ice = true +# Make the compiler and standard library faster to build, at the expense of a ~20% runtime slowdown. +lto = "off" [llvm] # Will download LLVM from CI if available on your platform. diff --git a/src/bootstrap/defaults/config.library.toml b/src/bootstrap/defaults/config.library.toml index 7bc054d3a49f..f362c4111f10 100644 --- a/src/bootstrap/defaults/config.library.toml +++ b/src/bootstrap/defaults/config.library.toml @@ -8,6 +8,8 @@ bench-stage = 0 [rust] # This greatly increases the speed of rebuilds, especially when there are only minor changes. However, it makes the initial build slightly slower. incremental = true +# Make the compiler and standard library faster to build, at the expense of a ~20% runtime slowdown. +lto = "off" [llvm] # Will download LLVM from CI if available on your platform. diff --git a/src/bootstrap/lib.rs b/src/bootstrap/lib.rs index 267aa3278d8f..f4abdf1cc575 100644 --- a/src/bootstrap/lib.rs +++ b/src/bootstrap/lib.rs @@ -11,93 +11,6 @@ //! crates.io and Cargo. //! * A standard interface to build across all platforms, including MSVC //! -//! ## Architecture -//! -//! The build system defers most of the complicated logic managing invocations -//! of rustc and rustdoc to Cargo itself. However, moving through various stages -//! and copying artifacts is still necessary for it to do. Each time rustbuild -//! is invoked, it will iterate through the list of predefined steps and execute -//! each serially in turn if it matches the paths passed or is a default rule. -//! For each step rustbuild relies on the step internally being incremental and -//! parallel. Note, though, that the `-j` parameter to rustbuild gets forwarded -//! to appropriate test harnesses and such. -//! -//! Most of the "meaty" steps that matter are backed by Cargo, which does indeed -//! have its own parallelism and incremental management. Later steps, like -//! tests, aren't incremental and simply run the entire suite currently. -//! However, compiletest itself tries to avoid running tests when the artifacts -//! that are involved (mainly the compiler) haven't changed. -//! -//! When you execute `x.py build`, the steps executed are: -//! -//! * First, the python script is run. This will automatically download the -//! stage0 rustc and cargo according to `src/stage0.json`, or use the cached -//! versions if they're available. These are then used to compile rustbuild -//! itself (using Cargo). Finally, control is then transferred to rustbuild. -//! -//! * Rustbuild takes over, performs sanity checks, probes the environment, -//! reads configuration, and starts executing steps as it reads the command -//! line arguments (paths) or going through the default rules. -//! -//! The build output will be something like the following: -//! -//! Building stage0 std artifacts -//! Copying stage0 std -//! Building stage0 test artifacts -//! Copying stage0 test -//! Building stage0 compiler artifacts -//! Copying stage0 rustc -//! Assembling stage1 compiler -//! Building stage1 std artifacts -//! Copying stage1 std -//! Building stage1 test artifacts -//! Copying stage1 test -//! Building stage1 compiler artifacts -//! Copying stage1 rustc -//! Assembling stage2 compiler -//! Uplifting stage1 std -//! Uplifting stage1 test -//! Uplifting stage1 rustc -//! -//! Let's disect that a little: -//! -//! ## Building stage0 {std,test,compiler} artifacts -//! -//! These steps use the provided (downloaded, usually) compiler to compile the -//! local Rust source into libraries we can use. -//! -//! ## Copying stage0 {std,test,rustc} -//! -//! This copies the build output from Cargo into -//! `build/$HOST/stage0-sysroot/lib/rustlib/$ARCH/lib`. FIXME: this step's -//! documentation should be expanded -- the information already here may be -//! incorrect. -//! -//! ## Assembling stage1 compiler -//! -//! This copies the libraries we built in "building stage0 ... artifacts" into -//! the stage1 compiler's lib directory. These are the host libraries that the -//! compiler itself uses to run. These aren't actually used by artifacts the new -//! compiler generates. This step also copies the rustc and rustdoc binaries we -//! generated into build/$HOST/stage/bin. -//! -//! The stage1/bin/rustc is a fully functional compiler, but it doesn't yet have -//! any libraries to link built binaries or libraries to. The next 3 steps will -//! provide those libraries for it; they are mostly equivalent to constructing -//! the stage1/bin compiler so we don't go through them individually. -//! -//! ## Uplifting stage1 {std,test,rustc} -//! -//! This step copies the libraries from the stage1 compiler sysroot into the -//! stage2 compiler. This is done to avoid rebuilding the compiler; libraries -//! we'd build in this step should be identical (in function, if not necessarily -//! identical on disk) so there's no need to recompile the compiler again. Note -//! that if you want to, you can enable the full-bootstrap option to change this -//! behavior. -//! -//! Each step is driven by a separate Cargo project and rustbuild orchestrates -//! copying files between steps and otherwise preparing for Cargo to run. -//! //! ## Further information //! //! More documentation can be found in each respective module below, and you can diff --git a/src/ci/docker/scripts/fuchsia-test-runner.py b/src/ci/docker/scripts/fuchsia-test-runner.py index c8d1ff9aefb7..a6d84a3c18a5 100755 --- a/src/ci/docker/scripts/fuchsia-test-runner.py +++ b/src/ci/docker/scripts/fuchsia-test-runner.py @@ -19,18 +19,18 @@ import shutil import signal import subprocess import sys -from typing import ClassVar, List +from typing import ClassVar, List, Optional @dataclass class TestEnvironment: rust_dir: str sdk_dir: str - target_arch: str - package_server_pid: int = None - emu_addr: str = None - libstd_name: str = None - libtest_name: str = None + target: str + package_server_pid: Optional[int] = None + emu_addr: Optional[str] = None + libstd_name: Optional[str] = None + libtest_name: Optional[str] = None verbose: bool = False @staticmethod @@ -40,6 +40,15 @@ class TestEnvironment: return os.path.abspath(tmp_dir) return os.path.join(os.path.dirname(__file__), "tmp~") + @staticmethod + def triple_to_arch(triple): + if "x86_64" in triple: + return "x64" + elif "aarch64" in triple: + return "arm64" + else: + raise Exception(f"Unrecognized target triple {triple}") + @classmethod def env_file_path(cls): return os.path.join(cls.tmp_dir(), "test_env.json") @@ -49,7 +58,7 @@ class TestEnvironment: return cls( os.path.abspath(args.rust), os.path.abspath(args.sdk), - args.target_arch, + args.target, verbose=args.verbose, ) @@ -60,7 +69,7 @@ class TestEnvironment: return cls( test_env["rust_dir"], test_env["sdk_dir"], - test_env["target_arch"], + test_env["target"], libstd_name=test_env["libstd_name"], libtest_name=test_env["libtest_name"], emu_addr=test_env["emu_addr"], @@ -68,13 +77,6 @@ class TestEnvironment: verbose=test_env["verbose"], ) - def image_name(self): - if self.target_arch == "x64": - return "qemu-x64" - if self.target_arch == "arm64": - return "qemu-arm64" - raise Exception(f"Unrecognized target architecture {self.target_arch}") - def write_to_file(self): with open(self.env_file_path(), "w", encoding="utf-8") as f: f.write(json.dumps(self.__dict__)) @@ -108,13 +110,6 @@ class TestEnvironment: def repo_dir(self): return os.path.join(self.tmp_dir(), self.TEST_REPO_NAME) - def rustlib_dir(self): - if self.target_arch == "x64": - return "x86_64-unknown-fuchsia" - if self.target_arch == "arm64": - return "aarch64-unknown-fuchsia" - raise Exception(f"Unrecognized target architecture {self.target_arch}") - def libs_dir(self): return os.path.join( self.rust_dir, @@ -125,7 +120,7 @@ class TestEnvironment: return os.path.join( self.libs_dir(), "rustlib", - self.rustlib_dir(), + self.target, "lib", ) @@ -384,7 +379,7 @@ class TestEnvironment: "--emulator-log", self.emulator_log_path(), "--image-name", - self.image_name(), + "qemu-" + self.triple_to_arch(self.target), ], stdout=self.subprocess_output(), stderr=self.subprocess_output(), @@ -642,11 +637,11 @@ class TestEnvironment: package_dir=package_dir, package_name=package_name, rust_dir=self.rust_dir, - rustlib_dir=self.rustlib_dir(), + rustlib_dir=self.target, sdk_dir=self.sdk_dir, libstd_name=self.libstd_name, libtest_name=self.libtest_name, - target_arch=self.target_arch, + target_arch=self.triple_to_arch(self.target), ) ) for shared_lib in shared_libs: @@ -969,8 +964,8 @@ def main(): action="store_true", ) start_parser.add_argument( - "--target-arch", - help="the architecture of the image to test", + "--target", + help="the target platform to test", required=True, ) start_parser.set_defaults(func=start) diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml index 8ff6e3ba4e80..c0a1341ebca5 100644 --- a/src/ci/github-actions/ci.yml +++ b/src/ci/github-actions/ci.yml @@ -33,6 +33,7 @@ x--expand-yaml-anchors--remove: - &shared-ci-variables CI_JOB_NAME: ${{ matrix.name }} + CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse - &public-variables SCCACHE_BUCKET: rust-lang-ci-sccache2 diff --git a/src/ci/run.sh b/src/ci/run.sh index 0db9c993eecb..93dccb54c4e3 100755 --- a/src/ci/run.sh +++ b/src/ci/run.sh @@ -45,6 +45,8 @@ fi ci_dir=`cd $(dirname $0) && pwd` source "$ci_dir/shared.sh" +export CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse + if ! isCI || isCiBranch auto || isCiBranch beta || isCiBranch try || isCiBranch try-perf; then RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --set build.print-step-timings --enable-verbose-tests" RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --set build.metrics" diff --git a/src/ci/stage-build.py b/src/ci/stage-build.py index c373edfcf46a..662c9e36694c 100644 --- a/src/ci/stage-build.py +++ b/src/ci/stage-build.py @@ -15,10 +15,9 @@ import sys import time import traceback import urllib.request -from collections import OrderedDict from io import StringIO from pathlib import Path -from typing import Callable, Dict, Iterable, List, Optional, Union +from typing import Callable, Dict, Iterable, Iterator, List, Optional, Tuple, Union PGO_HOST = os.environ["PGO_HOST"] @@ -204,48 +203,105 @@ class WindowsPipeline(Pipeline): return False +def get_timestamp() -> float: + return time.time() + + +Duration = float +TimerSection = Union[Duration, "Timer"] + + +def iterate_sections(section: TimerSection, name: str, level: int = 0) -> Iterator[Tuple[int, str, Duration]]: + """ + Hierarchically iterate the sections of a timer, in a depth-first order. + """ + if isinstance(section, Duration): + yield (level, name, section) + elif isinstance(section, Timer): + yield (level, name, section.total_duration()) + for (child_name, child_section) in section.sections: + yield from iterate_sections(child_section, child_name, level=level + 1) + else: + assert False + + class Timer: - def __init__(self): - # We want this dictionary to be ordered by insertion. - # We use `OrderedDict` for compatibility with older Python versions. - self.stages = OrderedDict() + def __init__(self, parent_names: Tuple[str, ...] = ()): + self.sections: List[Tuple[str, TimerSection]] = [] + self.section_active = False + self.parent_names = parent_names @contextlib.contextmanager - def stage(self, name: str): - assert name not in self.stages + def section(self, name: str) -> "Timer": + assert not self.section_active + self.section_active = True - start = time.time() + start = get_timestamp() exc = None + + child_timer = Timer(parent_names=self.parent_names + (name, )) + full_name = " > ".join(child_timer.parent_names) try: - LOGGER.info(f"Stage `{name}` starts") - yield + LOGGER.info(f"Section `{full_name}` starts") + yield child_timer except BaseException as exception: exc = exception raise finally: - end = time.time() + end = get_timestamp() duration = end - start - self.stages[name] = duration - if exc is None: - LOGGER.info(f"Stage `{name}` ended: OK ({duration:.2f}s)") + + if child_timer.has_children(): + self.sections.append((name, child_timer)) else: - LOGGER.info(f"Stage `{name}` ended: FAIL ({duration:.2f}s)") + self.sections.append((name, duration)) + if exc is None: + LOGGER.info(f"Section `{full_name}` ended: OK ({duration:.2f}s)") + else: + LOGGER.info(f"Section `{full_name}` ended: FAIL ({duration:.2f}s)") + self.section_active = False + + def total_duration(self) -> Duration: + duration = 0 + for (_, section) in self.sections: + if isinstance(section, Duration): + duration += section + else: + duration += section.total_duration() + return duration + + def has_children(self) -> bool: + return len(self.sections) > 0 def print_stats(self): - total_duration = sum(self.stages.values()) + rows = [] + for (child_name, child_section) in self.sections: + for (level, name, duration) in iterate_sections(child_section, child_name, level=0): + label = f"{' ' * level}{name}:" + rows.append((label, duration)) - # 57 is the width of the whole table - divider = "-" * 57 + # Empty row + rows.append(("", "")) + + total_duration_label = "Total duration:" + total_duration = self.total_duration() + rows.append((total_duration_label, humantime(total_duration))) + + space_after_label = 2 + max_label_length = max(16, max(len(label) for (label, _) in rows)) + space_after_label + + table_width = max_label_length + 23 + divider = "-" * table_width with StringIO() as output: print(divider, file=output) - for (name, duration) in self.stages.items(): - pct = (duration / total_duration) * 100 - name_str = f"{name}:" - print(f"{name_str:<34} {duration:>12.2f}s ({pct:>5.2f}%)", file=output) - - total_duration_label = "Total duration:" - print(f"{total_duration_label:<34} {total_duration:>12.2f}s", file=output) + for (label, duration) in rows: + if isinstance(duration, Duration): + pct = (duration / total_duration) * 100 + value = f"{duration:>12.2f}s ({pct:>5.2f}%)" + else: + value = f"{duration:>{len(total_duration_label) + 7}}" + print(f"{label:<{max_label_length}} {value}", file=output) print(divider, file=output, end="") LOGGER.info(f"Timer results\n{output.getvalue()}") @@ -265,6 +321,21 @@ def change_cwd(dir: Path): os.chdir(cwd) +def humantime(time_s: float) -> str: + hours = time_s // 3600 + time_s = time_s % 3600 + minutes = time_s // 60 + seconds = time_s % 60 + + result = "" + if hours > 0: + result += f"{int(hours)}h " + if minutes > 0: + result += f"{int(minutes)}m " + result += f"{round(seconds)}s" + return result + + def move_path(src: Path, dst: Path): LOGGER.info(f"Moving `{src}` to `{dst}`") shutil.move(src, dst) @@ -585,15 +656,16 @@ def execute_build_pipeline(timer: Timer, pipeline: Pipeline, final_build_args: L pipeline.build_rustc_perf() # Stage 1: Build rustc + PGO instrumented LLVM - with timer.stage("Build rustc (LLVM PGO)"): - build_rustc(pipeline, args=[ - "--llvm-profile-generate" - ], env=dict( - LLVM_PROFILE_DIR=str(pipeline.llvm_profile_dir_root() / "prof-%p") - )) + with timer.section("Stage 1 (LLVM PGO)") as stage1: + with stage1.section("Build rustc and LLVM"): + build_rustc(pipeline, args=[ + "--llvm-profile-generate" + ], env=dict( + LLVM_PROFILE_DIR=str(pipeline.llvm_profile_dir_root() / "prof-%p") + )) - with timer.stage("Gather profiles (LLVM PGO)"): - gather_llvm_profiles(pipeline) + with stage1.section("Gather profiles"): + gather_llvm_profiles(pipeline) clear_llvm_files(pipeline) final_build_args += [ @@ -602,14 +674,15 @@ def execute_build_pipeline(timer: Timer, pipeline: Pipeline, final_build_args: L ] # Stage 2: Build PGO instrumented rustc + LLVM - with timer.stage("Build rustc (rustc PGO)"): - build_rustc(pipeline, args=[ - "--rust-profile-generate", - pipeline.rustc_profile_dir_root() - ]) + with timer.section("Stage 2 (rustc PGO)") as stage2: + with stage2.section("Build rustc and LLVM"): + build_rustc(pipeline, args=[ + "--rust-profile-generate", + pipeline.rustc_profile_dir_root() + ]) - with timer.stage("Gather profiles (rustc PGO)"): - gather_rustc_profiles(pipeline) + with stage2.section("Gather profiles"): + gather_rustc_profiles(pipeline) clear_llvm_files(pipeline) final_build_args += [ @@ -619,14 +692,15 @@ def execute_build_pipeline(timer: Timer, pipeline: Pipeline, final_build_args: L # Stage 3: Build rustc + BOLT instrumented LLVM if pipeline.supports_bolt(): - with timer.stage("Build rustc (LLVM BOLT)"): - build_rustc(pipeline, args=[ - "--llvm-profile-use", - pipeline.llvm_profile_merged_file(), - "--llvm-bolt-profile-generate", - ]) - with timer.stage("Gather profiles (LLVM BOLT)"): - gather_llvm_bolt_profiles(pipeline) + with timer.section("Stage 3 (LLVM BOLT)") as stage3: + with stage3.section("Build rustc and LLVM"): + build_rustc(pipeline, args=[ + "--llvm-profile-use", + pipeline.llvm_profile_merged_file(), + "--llvm-bolt-profile-generate", + ]) + with stage3.section("Gather profiles"): + gather_llvm_bolt_profiles(pipeline) clear_llvm_files(pipeline) final_build_args += [ @@ -635,7 +709,7 @@ def execute_build_pipeline(timer: Timer, pipeline: Pipeline, final_build_args: L ] # Stage 4: Build PGO optimized rustc + PGO/BOLT optimized LLVM - with timer.stage("Final build"): + with timer.section("Stage 4 (final build)"): cmd(final_build_args) diff --git a/src/doc/rustc/src/platform-support/fuchsia.md b/src/doc/rustc/src/platform-support/fuchsia.md index 29e70129a62e..0f165b268ba3 100644 --- a/src/doc/rustc/src/platform-support/fuchsia.md +++ b/src/doc/rustc/src/platform-support/fuchsia.md @@ -697,7 +697,7 @@ test environment with: src/ci/docker/scripts/fuchsia-test-runner.py start --rust ${RUST_SRC_PATH}/install --sdk ${SDK_PATH} - --target-arch {x64,arm64} + --target-triple {x86_64-unknown-fuchsia|aarch64-unknown-fuchsia} ``` Where `${RUST_SRC_PATH}/install` is the `prefix` set in `config.toml` and diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index e2ced191a00c..80493b100bb4 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -2213,21 +2213,17 @@ fn clean_maybe_renamed_item<'tcx>( get_all_import_attributes(use_node, cx.tcx, item.owner_id.def_id, &mut extra_attrs); } - if !extra_attrs.is_empty() { + let mut item = if !extra_attrs.is_empty() { extra_attrs.extend_from_slice(inline::load_attrs(cx, def_id)); let attrs = Attributes::from_ast(&extra_attrs); let cfg = extra_attrs.cfg(cx.tcx, &cx.cache.hidden_cfg); - vec![Item::from_def_id_and_attrs_and_parts( - def_id, - Some(name), - kind, - Box::new(attrs), - cfg, - )] + Item::from_def_id_and_attrs_and_parts(def_id, Some(name), kind, Box::new(attrs), cfg) } else { - vec![Item::from_def_id_and_parts(def_id, Some(name), kind, cx)] - } + Item::from_def_id_and_parts(def_id, Some(name), kind, cx) + }; + item.inline_stmt_id = import_id.map(|def_id| def_id.to_def_id()); + vec![item] }) } diff --git a/src/librustdoc/html/format.rs b/src/librustdoc/html/format.rs index 33404a768359..a59cfbea8853 100644 --- a/src/librustdoc/html/format.rs +++ b/src/librustdoc/html/format.rs @@ -208,7 +208,7 @@ impl clean::GenericParamDef { if f.alternate() { write!(f, ": {:#}", print_generic_bounds(bounds, cx))?; } else { - write!(f, ": {}", print_generic_bounds(bounds, cx))?; + write!(f, ": {}", print_generic_bounds(bounds, cx))?; } } @@ -216,7 +216,7 @@ impl clean::GenericParamDef { if f.alternate() { write!(f, " = {:#}", ty.print(cx))?; } else { - write!(f, " = {}", ty.print(cx))?; + write!(f, " = {}", ty.print(cx))?; } } @@ -226,14 +226,14 @@ impl clean::GenericParamDef { if f.alternate() { write!(f, "const {}: {:#}", self.name, ty.print(cx))?; } else { - write!(f, "const {}: {}", self.name, ty.print(cx))?; + write!(f, "const {}: {}", self.name, ty.print(cx))?; } if let Some(default) = default { if f.alternate() { write!(f, " = {:#}", default)?; } else { - write!(f, " = {}", default)?; + write!(f, " = {}", default)?; } } @@ -353,13 +353,17 @@ pub(crate) fn print_where_clause<'a, 'tcx: 'a>( } else { let mut br_with_padding = String::with_capacity(6 * indent + 28); br_with_padding.push_str("
"); - for _ in 0..indent + 4 { - br_with_padding.push_str(" "); + + let padding_amout = + if ending == Ending::Newline { indent + 4 } else { indent + "fn where ".len() }; + + for _ in 0..padding_amout { + br_with_padding.push_str(" "); } let where_preds = where_preds.to_string().replace("
", &br_with_padding); if ending == Ending::Newline { - let mut clause = " ".repeat(indent.saturating_sub(1)); + let mut clause = " ".repeat(indent.saturating_sub(1)); write!(clause, "where{where_preds},")?; clause } else { @@ -367,8 +371,12 @@ pub(crate) fn print_where_clause<'a, 'tcx: 'a>( if indent == 0 { format!("
where{where_preds}") } else { + // put the first one on the same line as the 'where' keyword + let where_preds = where_preds.replacen(&br_with_padding, " ", 1); + let mut clause = br_with_padding; - clause.truncate(clause.len() - 4 * " ".len()); + clause.truncate(clause.len() - "where ".len()); + write!(clause, "where{where_preds}")?; clause } @@ -1391,8 +1399,8 @@ impl clean::FnDecl { let declaration_len = header_len + args_plain.len() + arrow_plain.len(); let output = if declaration_len > 80 { - let full_pad = format!("
{}", " ".repeat(indent + 4)); - let close_pad = format!("
{}", " ".repeat(indent)); + let full_pad = format!("
{}", " ".repeat(indent + 4)); + let close_pad = format!("
{}", " ".repeat(indent)); format!( "({pad}{args}{close}){arrow}", pad = if self.inputs.values.is_empty() { "" } else { &full_pad }, @@ -1611,7 +1619,7 @@ impl clean::TypeBinding { if f.alternate() { write!(f, ": {:#}", print_generic_bounds(bounds, cx))?; } else { - write!(f, ": {}", print_generic_bounds(bounds, cx))?; + write!(f, ": {}", print_generic_bounds(bounds, cx))?; } } } diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs index 00e3f859bfcb..fb7c34118a49 100644 --- a/src/librustdoc/html/markdown.rs +++ b/src/librustdoc/html/markdown.rs @@ -102,14 +102,14 @@ pub struct Markdown<'a> { /// E.g. if `heading_offset: HeadingOffset::H2`, then `# something` renders an `

`. pub heading_offset: HeadingOffset, } -/// A tuple struct like `Markdown` that renders the markdown with a table of contents. -pub(crate) struct MarkdownWithToc<'a>( - pub(crate) &'a str, - pub(crate) &'a mut IdMap, - pub(crate) ErrorCodes, - pub(crate) Edition, - pub(crate) &'a Option, -); +/// A struct like `Markdown` that renders the markdown with a table of contents. +pub(crate) struct MarkdownWithToc<'a> { + pub(crate) content: &'a str, + pub(crate) ids: &'a mut IdMap, + pub(crate) error_codes: ErrorCodes, + pub(crate) edition: Edition, + pub(crate) playground: &'a Option, +} /// A tuple struct like `Markdown` that renders the markdown escaping HTML tags /// and includes no paragraph tags. pub(crate) struct MarkdownItemInfo<'a>(pub(crate) &'a str, pub(crate) &'a mut IdMap); @@ -1048,7 +1048,7 @@ impl Markdown<'_> { impl MarkdownWithToc<'_> { pub(crate) fn into_string(self) -> String { - let MarkdownWithToc(md, ids, codes, edition, playground) = self; + let MarkdownWithToc { content: md, ids, error_codes: codes, edition, playground } = self; let p = Parser::new_ext(md, main_body_opts()).into_offset_iter(); diff --git a/src/librustdoc/html/render/print_item.rs b/src/librustdoc/html/render/print_item.rs index bd7548003ad3..c2d24e514845 100644 --- a/src/librustdoc/html/render/print_item.rs +++ b/src/librustdoc/html/render/print_item.rs @@ -645,6 +645,10 @@ fn item_trait(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, t: &clean: if count_consts != 0 && count_methods != 0 { w.write_str("\n"); } + + if !required_methods.is_empty() { + write!(w, " // Required method{}\n", pluralize(required_methods.len())); + } for (pos, m) in required_methods.iter().enumerate() { render_assoc_item( w, @@ -663,6 +667,10 @@ fn item_trait(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, t: &clean: if !required_methods.is_empty() && !provided_methods.is_empty() { w.write_str("\n"); } + + if !provided_methods.is_empty() { + write!(w, " // Provided method{}\n", pluralize(provided_methods.len())); + } for (pos, m) in provided_methods.iter().enumerate() { render_assoc_item( w, @@ -672,16 +680,8 @@ fn item_trait(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, t: &clean: cx, RenderMode::Normal, ); - match *m.kind { - clean::MethodItem(ref inner, _) - if !inner.generics.where_predicates.is_empty() => - { - w.write_str(",\n { ... }\n"); - } - _ => { - w.write_str(" { ... }\n"); - } - } + + w.write_str(" { ... }\n"); if pos < provided_methods.len() - 1 { w.write_str(""); @@ -1157,7 +1157,7 @@ fn item_union(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, s: &clean: fn print_tuple_struct_fields(w: &mut Buffer, cx: &Context<'_>, s: &[clean::Item]) { for (i, ty) in s.iter().enumerate() { if i > 0 { - w.write_str(", "); + w.write_str(", "); } match *ty.kind { clean::StrippedItem(box clean::StructFieldItem(_)) => w.write_str("_"), @@ -1297,7 +1297,7 @@ fn item_enum(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, e: &clean:: "
\ \ §\ - {f}: {t}\ + {f}: {t}\ ", id = id, f = field.name.unwrap(), diff --git a/src/librustdoc/html/render/write_shared.rs b/src/librustdoc/html/render/write_shared.rs index 6b71ecc24bde..54749e9a3171 100644 --- a/src/librustdoc/html/render/write_shared.rs +++ b/src/librustdoc/html/render/write_shared.rs @@ -138,7 +138,7 @@ pub(super) fn write_shared( Ok((ret, krates)) } - /// Read a file and return all lines that match the "{crate}":{data},\ format, + /// Read a file and return all lines that match the "{crate}":{data},\ format, /// and return a tuple `(Vec, Vec)`. /// /// This forms the payload of files that look like this: diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css index ee988090ca33..2a9548712f08 100644 --- a/src/librustdoc/html/static/css/rustdoc.css +++ b/src/librustdoc/html/static/css/rustdoc.css @@ -184,6 +184,7 @@ h4.code-header { font-weight: 600; margin: 0; padding: 0; + white-space: pre-wrap; } #crate-search, @@ -642,6 +643,7 @@ pre, .rustdoc.source .example-wrap { .fn .where, .where.fmt-newline { display: block; + white-space: pre-wrap; font-size: 0.875rem; } @@ -1174,6 +1176,7 @@ a.test-arrow:hover { .item-spacer { width: 100%; height: 12px; + display: block; } .out-of-band > span.since { diff --git a/src/librustdoc/html/static/css/themes/ayu.css b/src/librustdoc/html/static/css/themes/ayu.css index d20d13ab36d2..b5a2cf7f28bf 100644 --- a/src/librustdoc/html/static/css/themes/ayu.css +++ b/src/librustdoc/html/static/css/themes/ayu.css @@ -105,10 +105,9 @@ Original by Dempfi (https://github.com/dempfi/ayu) --scrape-example-code-wrapper-background-end: rgba(15, 20, 25, 0); } -h1, h2, h3, h4 { - color: white; -} -h1 a { +h1, h2, h3, h4, +h1 a, .sidebar h2 a, .sidebar h3 a, +#source-sidebar > .title { color: #fff; } h4 { @@ -118,24 +117,22 @@ h4 { .docblock code { color: #ffb454; } -.code-header { - color: #e6e1cf; -} -.docblock pre > code, pre > code { - color: #e6e1cf; -} -.item-info code { - color: #e6e1cf; -} .docblock a > code { color: #39AFD7 !important; } -pre, .rustdoc.source .example-wrap { +.code-header, +.docblock pre > code, +pre, pre > code, +.item-info code, +.rustdoc.source .example-wrap { color: #e6e1cf; } .sidebar .current, -.sidebar a:hover { +.sidebar a:hover, +#source-sidebar div.files > a:hover, details.dir-entry summary:hover, +#source-sidebar div.files > a:focus, details.dir-entry summary:focus, +#source-sidebar div.files > a.selected { color: #ffb44c; } @@ -149,15 +146,12 @@ pre, .rustdoc.source .example-wrap { border-right: 1px solid #ffb44c; } -.search-results a:hover { - color: #fff !important; - background-color: #3c3c3c; -} - +.search-results a:hover, .search-results a:focus { color: #fff !important; background-color: #3c3c3c; } + .search-results a { color: #0096cf; } @@ -165,11 +159,6 @@ pre, .rustdoc.source .example-wrap { color: #c5c5c5; } -.sidebar h2 a, -.sidebar h3 a { - color: white; -} - .result-name .primitive > i, .result-name .keyword > i { color: #788797; } @@ -189,12 +178,3 @@ pre, .rustdoc.source .example-wrap { #settings-menu > a img { filter: invert(100); } - -#source-sidebar > .title { - color: #fff; -} -#source-sidebar div.files > a:hover, details.dir-entry summary:hover, -#source-sidebar div.files > a:focus, details.dir-entry summary:focus, -#source-sidebar div.files > a.selected { - color: #ffb44c; -} diff --git a/src/librustdoc/html/static/js/search.js b/src/librustdoc/html/static/js/search.js index 88592fa0c84c..251e806c2d90 100644 --- a/src/librustdoc/html/static/js/search.js +++ b/src/librustdoc/html/static/js/search.js @@ -112,7 +112,6 @@ function levenshtein(s1, s2) { } function initSearch(rawSearchIndex) { - const MAX_LEV_DISTANCE = 3; const MAX_RESULTS = 200; const NO_TYPE_FILTER = -1; /** @@ -897,13 +896,13 @@ function initSearch(rawSearchIndex) { * @param {QueryElement} elem - The element from the parsed query. * @param {integer} defaultLev - This is the value to return in case there are no generics. * - * @return {integer} - Returns the best match (if any) or `MAX_LEV_DISTANCE + 1`. + * @return {integer} - Returns the best match (if any) or `maxLevDistance + 1`. */ - function checkGenerics(row, elem, defaultLev) { + function checkGenerics(row, elem, defaultLev, maxLevDistance) { if (row.generics.length === 0) { - return elem.generics.length === 0 ? defaultLev : MAX_LEV_DISTANCE + 1; + return elem.generics.length === 0 ? defaultLev : maxLevDistance + 1; } else if (row.generics.length > 0 && row.generics[0].name === null) { - return checkGenerics(row.generics[0], elem, defaultLev); + return checkGenerics(row.generics[0], elem, defaultLev, maxLevDistance); } // The names match, but we need to be sure that all generics kinda // match as well. @@ -914,8 +913,8 @@ function initSearch(rawSearchIndex) { elem_name = entry.name; if (elem_name === "") { // Pure generic, needs to check into it. - if (checkGenerics(entry, elem, MAX_LEV_DISTANCE + 1) !== 0) { - return MAX_LEV_DISTANCE + 1; + if (checkGenerics(entry, elem, maxLevDistance + 1, maxLevDistance) !== 0) { + return maxLevDistance + 1; } continue; } @@ -942,7 +941,7 @@ function initSearch(rawSearchIndex) { } } if (match === null) { - return MAX_LEV_DISTANCE + 1; + return maxLevDistance + 1; } elems[match] -= 1; if (elems[match] === 0) { @@ -951,7 +950,7 @@ function initSearch(rawSearchIndex) { } return 0; } - return MAX_LEV_DISTANCE + 1; + return maxLevDistance + 1; } /** @@ -963,10 +962,10 @@ function initSearch(rawSearchIndex) { * * @return {integer} - Returns a Levenshtein distance to the best match. */ - function checkIfInGenerics(row, elem) { - let lev = MAX_LEV_DISTANCE + 1; + function checkIfInGenerics(row, elem, maxLevDistance) { + let lev = maxLevDistance + 1; for (const entry of row.generics) { - lev = Math.min(checkType(entry, elem, true), lev); + lev = Math.min(checkType(entry, elem, true, maxLevDistance), lev); if (lev === 0) { break; } @@ -983,15 +982,15 @@ function initSearch(rawSearchIndex) { * @param {boolean} literalSearch * * @return {integer} - Returns a Levenshtein distance to the best match. If there is - * no match, returns `MAX_LEV_DISTANCE + 1`. + * no match, returns `maxLevDistance + 1`. */ - function checkType(row, elem, literalSearch) { + function checkType(row, elem, literalSearch, maxLevDistance) { if (row.name === null) { // This is a pure "generic" search, no need to run other checks. if (row.generics.length > 0) { - return checkIfInGenerics(row, elem); + return checkIfInGenerics(row, elem, maxLevDistance); } - return MAX_LEV_DISTANCE + 1; + return maxLevDistance + 1; } let lev = levenshtein(row.name, elem.name); @@ -1005,9 +1004,9 @@ function initSearch(rawSearchIndex) { return 0; } } - return MAX_LEV_DISTANCE + 1; + return maxLevDistance + 1; } else if (elem.generics.length > 0) { - return checkGenerics(row, elem, MAX_LEV_DISTANCE + 1); + return checkGenerics(row, elem, maxLevDistance + 1, maxLevDistance); } return 0; } else if (row.generics.length > 0) { @@ -1017,22 +1016,20 @@ function initSearch(rawSearchIndex) { } // The name didn't match so we now check if the type we're looking for is inside // the generics! - lev = checkIfInGenerics(row, elem); - // Now whatever happens, the returned distance is "less good" so we should mark - // it as such, and so we add 0.5 to the distance to make it "less good". - return lev + 0.5; - } else if (lev > MAX_LEV_DISTANCE) { + lev = Math.min(lev, checkIfInGenerics(row, elem, maxLevDistance)); + return lev; + } else if (lev > maxLevDistance) { // So our item's name doesn't match at all and has generics. // // Maybe it's present in a sub generic? For example "f>>()", if we're // looking for "B", we'll need to go down. - return checkIfInGenerics(row, elem); + return checkIfInGenerics(row, elem, maxLevDistance); } else { // At this point, the name kinda match and we have generics to check, so // let's go! - const tmp_lev = checkGenerics(row, elem, lev); - if (tmp_lev > MAX_LEV_DISTANCE) { - return MAX_LEV_DISTANCE + 1; + const tmp_lev = checkGenerics(row, elem, lev, maxLevDistance); + if (tmp_lev > maxLevDistance) { + return maxLevDistance + 1; } // We compute the median value of both checks and return it. return (tmp_lev + lev) / 2; @@ -1040,7 +1037,7 @@ function initSearch(rawSearchIndex) { } else if (elem.generics.length > 0) { // In this case, we were expecting generics but there isn't so we simply reject this // one. - return MAX_LEV_DISTANCE + 1; + return maxLevDistance + 1; } // No generics on our query or on the target type so we can return without doing // anything else. @@ -1055,23 +1052,26 @@ function initSearch(rawSearchIndex) { * @param {integer} typeFilter * * @return {integer} - Returns a Levenshtein distance to the best match. If there is no - * match, returns `MAX_LEV_DISTANCE + 1`. + * match, returns `maxLevDistance + 1`. */ - function findArg(row, elem, typeFilter) { - let lev = MAX_LEV_DISTANCE + 1; + function findArg(row, elem, typeFilter, maxLevDistance) { + let lev = maxLevDistance + 1; if (row && row.type && row.type.inputs && row.type.inputs.length > 0) { for (const input of row.type.inputs) { if (!typePassesFilter(typeFilter, input.ty)) { continue; } - lev = Math.min(lev, checkType(input, elem, parsedQuery.literalSearch)); + lev = Math.min( + lev, + checkType(input, elem, parsedQuery.literalSearch, maxLevDistance) + ); if (lev === 0) { return 0; } } } - return parsedQuery.literalSearch ? MAX_LEV_DISTANCE + 1 : lev; + return parsedQuery.literalSearch ? maxLevDistance + 1 : lev; } /** @@ -1082,10 +1082,10 @@ function initSearch(rawSearchIndex) { * @param {integer} typeFilter * * @return {integer} - Returns a Levenshtein distance to the best match. If there is no - * match, returns `MAX_LEV_DISTANCE + 1`. + * match, returns `maxLevDistance + 1`. */ - function checkReturned(row, elem, typeFilter) { - let lev = MAX_LEV_DISTANCE + 1; + function checkReturned(row, elem, typeFilter, maxLevDistance) { + let lev = maxLevDistance + 1; if (row && row.type && row.type.output.length > 0) { const ret = row.type.output; @@ -1093,20 +1093,23 @@ function initSearch(rawSearchIndex) { if (!typePassesFilter(typeFilter, ret_ty.ty)) { continue; } - lev = Math.min(lev, checkType(ret_ty, elem, parsedQuery.literalSearch)); + lev = Math.min( + lev, + checkType(ret_ty, elem, parsedQuery.literalSearch, maxLevDistance) + ); if (lev === 0) { return 0; } } } - return parsedQuery.literalSearch ? MAX_LEV_DISTANCE + 1 : lev; + return parsedQuery.literalSearch ? maxLevDistance + 1 : lev; } - function checkPath(contains, ty) { + function checkPath(contains, ty, maxLevDistance) { if (contains.length === 0) { return 0; } - let ret_lev = MAX_LEV_DISTANCE + 1; + let ret_lev = maxLevDistance + 1; const path = ty.path.split("::"); if (ty.parent && ty.parent.name) { @@ -1116,7 +1119,7 @@ function initSearch(rawSearchIndex) { const length = path.length; const clength = contains.length; if (clength > length) { - return MAX_LEV_DISTANCE + 1; + return maxLevDistance + 1; } for (let i = 0; i < length; ++i) { if (i + clength > length) { @@ -1126,7 +1129,7 @@ function initSearch(rawSearchIndex) { let aborted = false; for (let x = 0; x < clength; ++x) { const lev = levenshtein(path[i + x], contains[x]); - if (lev > MAX_LEV_DISTANCE) { + if (lev > maxLevDistance) { aborted = true; break; } @@ -1231,7 +1234,7 @@ function initSearch(rawSearchIndex) { * following condition: * * * If it is a "literal search" (`parsedQuery.literalSearch`), then `lev` must be 0. - * * If it is not a "literal search", `lev` must be <= `MAX_LEV_DISTANCE`. + * * If it is not a "literal search", `lev` must be <= `maxLevDistance`. * * The `results` map contains information which will be used to sort the search results: * @@ -1249,8 +1252,8 @@ function initSearch(rawSearchIndex) { * @param {integer} lev * @param {integer} path_lev */ - function addIntoResults(results, fullId, id, index, lev, path_lev) { - const inBounds = lev <= MAX_LEV_DISTANCE || index !== -1; + function addIntoResults(results, fullId, id, index, lev, path_lev, maxLevDistance) { + const inBounds = lev <= maxLevDistance || index !== -1; if (lev === 0 || (!parsedQuery.literalSearch && inBounds)) { if (results[fullId] !== undefined) { const result = results[fullId]; @@ -1289,7 +1292,8 @@ function initSearch(rawSearchIndex) { elem, results_others, results_in_args, - results_returned + results_returned, + maxLevDistance ) { if (!row || (filterCrates !== null && row.crate !== filterCrates)) { return; @@ -1298,13 +1302,13 @@ function initSearch(rawSearchIndex) { const fullId = row.id; const searchWord = searchWords[pos]; - const in_args = findArg(row, elem, parsedQuery.typeFilter); - const returned = checkReturned(row, elem, parsedQuery.typeFilter); + const in_args = findArg(row, elem, parsedQuery.typeFilter, maxLevDistance); + const returned = checkReturned(row, elem, parsedQuery.typeFilter, maxLevDistance); // path_lev is 0 because no parent path information is currently stored // in the search index - addIntoResults(results_in_args, fullId, pos, -1, in_args, 0); - addIntoResults(results_returned, fullId, pos, -1, returned, 0); + addIntoResults(results_in_args, fullId, pos, -1, in_args, 0, maxLevDistance); + addIntoResults(results_returned, fullId, pos, -1, returned, 0, maxLevDistance); if (!typePassesFilter(parsedQuery.typeFilter, row.ty)) { return; @@ -1328,16 +1332,16 @@ function initSearch(rawSearchIndex) { // No need to check anything else if it's a "pure" generics search. if (elem.name.length === 0) { if (row.type !== null) { - lev = checkGenerics(row.type, elem, MAX_LEV_DISTANCE + 1); + lev = checkGenerics(row.type, elem, maxLevDistance + 1, maxLevDistance); // path_lev is 0 because we know it's empty - addIntoResults(results_others, fullId, pos, index, lev, 0); + addIntoResults(results_others, fullId, pos, index, lev, 0, maxLevDistance); } return; } if (elem.fullPath.length > 1) { - path_lev = checkPath(elem.pathWithoutLast, row); - if (path_lev > MAX_LEV_DISTANCE) { + path_lev = checkPath(elem.pathWithoutLast, row, maxLevDistance); + if (path_lev > maxLevDistance) { return; } } @@ -1351,11 +1355,11 @@ function initSearch(rawSearchIndex) { lev = levenshtein(searchWord, elem.pathLast); - if (index === -1 && lev + path_lev > MAX_LEV_DISTANCE) { + if (index === -1 && lev + path_lev > maxLevDistance) { return; } - addIntoResults(results_others, fullId, pos, index, lev, path_lev); + addIntoResults(results_others, fullId, pos, index, lev, path_lev, maxLevDistance); } /** @@ -1367,7 +1371,7 @@ function initSearch(rawSearchIndex) { * @param {integer} pos - Position in the `searchIndex`. * @param {Object} results */ - function handleArgs(row, pos, results) { + function handleArgs(row, pos, results, maxLevDistance) { if (!row || (filterCrates !== null && row.crate !== filterCrates)) { return; } @@ -1379,7 +1383,7 @@ function initSearch(rawSearchIndex) { function checkArgs(elems, callback) { for (const elem of elems) { // There is more than one parameter to the query so all checks should be "exact" - const lev = callback(row, elem, NO_TYPE_FILTER); + const lev = callback(row, elem, NO_TYPE_FILTER, maxLevDistance); if (lev <= 1) { nbLev += 1; totalLev += lev; @@ -1400,12 +1404,21 @@ function initSearch(rawSearchIndex) { return; } const lev = Math.round(totalLev / nbLev); - addIntoResults(results, row.id, pos, 0, lev, 0); + addIntoResults(results, row.id, pos, 0, lev, 0, maxLevDistance); } function innerRunQuery() { let elem, i, nSearchWords, in_returned, row; + let queryLen = 0; + for (const elem of parsedQuery.elems) { + queryLen += elem.name.length; + } + for (const elem of parsedQuery.returned) { + queryLen += elem.name.length; + } + const maxLevDistance = Math.floor(queryLen / 3); + if (parsedQuery.foundElems === 1) { if (parsedQuery.elems.length === 1) { elem = parsedQuery.elems[0]; @@ -1418,7 +1431,8 @@ function initSearch(rawSearchIndex) { elem, results_others, results_in_args, - results_returned + results_returned, + maxLevDistance ); } } else if (parsedQuery.returned.length === 1) { @@ -1426,13 +1440,18 @@ function initSearch(rawSearchIndex) { elem = parsedQuery.returned[0]; for (i = 0, nSearchWords = searchWords.length; i < nSearchWords; ++i) { row = searchIndex[i]; - in_returned = checkReturned(row, elem, parsedQuery.typeFilter); - addIntoResults(results_others, row.id, i, -1, in_returned); + in_returned = checkReturned( + row, + elem, + parsedQuery.typeFilter, + maxLevDistance + ); + addIntoResults(results_others, row.id, i, -1, in_returned, maxLevDistance); } } } else if (parsedQuery.foundElems > 0) { for (i = 0, nSearchWords = searchWords.length; i < nSearchWords; ++i) { - handleArgs(searchIndex[i], i, results_others); + handleArgs(searchIndex[i], i, results_others, maxLevDistance); } } } @@ -1470,7 +1489,7 @@ function initSearch(rawSearchIndex) { * * @return {boolean} - Whether the result is valid or not */ - function validateResult(name, path, keys, parent) { + function validateResult(name, path, keys, parent, maxLevDistance) { if (!keys || !keys.length) { return true; } @@ -1485,7 +1504,7 @@ function initSearch(rawSearchIndex) { (parent !== undefined && parent.name !== undefined && parent.name.toLowerCase().indexOf(key) > -1) || // lastly check to see if the name was a levenshtein match - levenshtein(name, key) <= MAX_LEV_DISTANCE)) { + levenshtein(name, key) <= maxLevDistance)) { return false; } } diff --git a/src/librustdoc/markdown.rs b/src/librustdoc/markdown.rs index 5f4ad6d2aea3..4321d4aa343d 100644 --- a/src/librustdoc/markdown.rs +++ b/src/librustdoc/markdown.rs @@ -72,7 +72,14 @@ pub(crate) fn render>( let mut ids = IdMap::new(); let error_codes = ErrorCodes::from(options.unstable_features.is_nightly_build()); let text = if !options.markdown_no_toc { - MarkdownWithToc(text, &mut ids, error_codes, edition, &playground).into_string() + MarkdownWithToc { + content: text, + ids: &mut ids, + error_codes, + edition, + playground: &playground, + } + .into_string() } else { Markdown { content: text, diff --git a/src/librustdoc/passes/strip_hidden.rs b/src/librustdoc/passes/strip_hidden.rs index e07a788a72a4..8c733ddefc0a 100644 --- a/src/librustdoc/passes/strip_hidden.rs +++ b/src/librustdoc/passes/strip_hidden.rs @@ -1,4 +1,6 @@ //! Strip all doc(hidden) items from the output. + +use rustc_middle::ty::TyCtxt; use rustc_span::symbol::sym; use std::mem; @@ -7,6 +9,7 @@ use crate::clean::{Item, ItemIdSet, NestedAttributesExt}; use crate::core::DocContext; use crate::fold::{strip_item, DocFolder}; use crate::passes::{ImplStripper, Pass}; +use crate::visit_ast::inherits_doc_hidden; pub(crate) const STRIP_HIDDEN: Pass = Pass { name: "strip-hidden", @@ -21,7 +24,12 @@ pub(crate) fn strip_hidden(krate: clean::Crate, cx: &mut DocContext<'_>) -> clea // strip all #[doc(hidden)] items let krate = { - let mut stripper = Stripper { retained: &mut retained, update_retained: true }; + let mut stripper = Stripper { + retained: &mut retained, + update_retained: true, + tcx: cx.tcx, + is_in_hidden_item: false, + }; stripper.fold_crate(krate) }; @@ -36,40 +44,89 @@ pub(crate) fn strip_hidden(krate: clean::Crate, cx: &mut DocContext<'_>) -> clea stripper.fold_crate(krate) } -struct Stripper<'a> { +struct Stripper<'a, 'tcx> { retained: &'a mut ItemIdSet, update_retained: bool, + tcx: TyCtxt<'tcx>, + is_in_hidden_item: bool, } -impl<'a> DocFolder for Stripper<'a> { +impl<'a, 'tcx> Stripper<'a, 'tcx> { + fn set_is_in_hidden_item_and_fold(&mut self, is_in_hidden_item: bool, i: Item) -> Item { + let prev = self.is_in_hidden_item; + self.is_in_hidden_item |= is_in_hidden_item; + let ret = self.fold_item_recur(i); + self.is_in_hidden_item = prev; + ret + } + + /// In case `i` is a non-hidden impl block, then we special-case it by changing the value + /// of `is_in_hidden_item` to `true` because the impl children inherit its visibility. + fn recurse_in_impl(&mut self, i: Item) -> Item { + let prev = mem::replace(&mut self.is_in_hidden_item, false); + let ret = self.fold_item_recur(i); + self.is_in_hidden_item = prev; + ret + } +} + +impl<'a, 'tcx> DocFolder for Stripper<'a, 'tcx> { fn fold_item(&mut self, i: Item) -> Option { - if i.attrs.lists(sym::doc).has_word(sym::hidden) { - debug!("strip_hidden: stripping {:?} {:?}", i.type_(), i.name); - // Use a dedicated hidden item for fields, variants, and modules. - // We need to keep private fields and variants, so that the docs - // can show a placeholder "// some variants omitted". We need to keep - // private modules, because they can contain impl blocks, and impl - // block privacy is inherited from the type and trait, not from the - // module it's defined in. Both of these are marked "stripped," and - // not included in the final docs, but since they still have an effect - // on the final doc, cannot be completely removed from the Clean IR. - match *i.kind { - clean::StructFieldItem(..) | clean::ModuleItem(..) | clean::VariantItem(..) => { - // We need to recurse into stripped modules to - // strip things like impl methods but when doing so - // we must not add any items to the `retained` set. - let old = mem::replace(&mut self.update_retained, false); - let ret = strip_item(self.fold_item_recur(i)); - self.update_retained = old; - return Some(ret); - } - _ => return None, + let has_doc_hidden = i.attrs.lists(sym::doc).has_word(sym::hidden); + let is_impl = matches!(*i.kind, clean::ImplItem(..)); + let mut is_hidden = has_doc_hidden; + if !is_impl { + is_hidden = self.is_in_hidden_item || has_doc_hidden; + if !is_hidden && i.inline_stmt_id.is_none() { + // We don't need to check if it's coming from a reexport since the reexport itself was + // already checked. + is_hidden = i + .item_id + .as_def_id() + .and_then(|def_id| def_id.as_local()) + .map(|def_id| inherits_doc_hidden(self.tcx, def_id)) + .unwrap_or(false); } - } else { + } + if !is_hidden { if self.update_retained { self.retained.insert(i.item_id); } + return Some(if is_impl { + self.recurse_in_impl(i) + } else { + self.set_is_in_hidden_item_and_fold(false, i) + }); + } + debug!("strip_hidden: stripping {:?} {:?}", i.type_(), i.name); + // Use a dedicated hidden item for fields, variants, and modules. + // We need to keep private fields and variants, so that the docs + // can show a placeholder "// some variants omitted". We need to keep + // private modules, because they can contain impl blocks, and impl + // block privacy is inherited from the type and trait, not from the + // module it's defined in. Both of these are marked "stripped," and + // not included in the final docs, but since they still have an effect + // on the final doc, cannot be completely removed from the Clean IR. + match *i.kind { + clean::StructFieldItem(..) | clean::ModuleItem(..) | clean::VariantItem(..) => { + // We need to recurse into stripped modules to + // strip things like impl methods but when doing so + // we must not add any items to the `retained` set. + let old = mem::replace(&mut self.update_retained, false); + let ret = strip_item(self.set_is_in_hidden_item_and_fold(true, i)); + self.update_retained = old; + Some(ret) + } + _ => { + let ret = self.set_is_in_hidden_item_and_fold(true, i); + if has_doc_hidden { + // If the item itself has `#[doc(hidden)]`, then we simply remove it. + None + } else { + // However if it's a "descendant" of a `#[doc(hidden)]` item, then we strip it. + Some(strip_item(ret)) + } + } } - Some(self.fold_item_recur(i)) } } diff --git a/src/librustdoc/visit_ast.rs b/src/librustdoc/visit_ast.rs index a89d6fa83983..088cb3f33949 100644 --- a/src/librustdoc/visit_ast.rs +++ b/src/librustdoc/visit_ast.rs @@ -5,7 +5,9 @@ use rustc_data_structures::fx::FxHashSet; use rustc_hir as hir; use rustc_hir::def::{DefKind, Res}; use rustc_hir::def_id::{DefId, DefIdMap, LocalDefId, LocalDefIdSet}; +use rustc_hir::intravisit::{walk_item, Visitor}; use rustc_hir::{Node, CRATE_HIR_ID}; +use rustc_middle::hir::nested_filter; use rustc_middle::ty::{DefIdTree, TyCtxt}; use rustc_span::def_id::{CRATE_DEF_ID, LOCAL_CRATE}; use rustc_span::symbol::{kw, sym, Symbol}; @@ -53,19 +55,26 @@ fn def_id_to_path(tcx: TyCtxt<'_>, did: DefId) -> Vec { std::iter::once(crate_name).chain(relative).collect() } -pub(crate) fn inherits_doc_hidden(tcx: TyCtxt<'_>, mut node: LocalDefId) -> bool { - while let Some(id) = tcx.opt_local_parent(node) { - node = id; - if tcx.is_doc_hidden(node.to_def_id()) { +pub(crate) fn inherits_doc_hidden(tcx: TyCtxt<'_>, mut def_id: LocalDefId) -> bool { + let hir = tcx.hir(); + while let Some(id) = tcx.opt_local_parent(def_id) { + def_id = id; + if tcx.is_doc_hidden(def_id.to_def_id()) { return true; + } else if let Some(node) = hir.find_by_def_id(def_id) && + matches!( + node, + hir::Node::Item(hir::Item { kind: hir::ItemKind::Impl(_), .. }), + ) + { + // `impl` blocks stand a bit on their own: unless they have `#[doc(hidden)]` directly + // on them, they don't inherit it from the parent context. + return false; } } false } -// Also, is there some reason that this doesn't use the 'visit' -// framework from syntax?. - pub(crate) struct RustdocVisitor<'a, 'tcx> { cx: &'a mut core::DocContext<'tcx>, view_item_stack: LocalDefIdSet, @@ -73,6 +82,7 @@ pub(crate) struct RustdocVisitor<'a, 'tcx> { /// Are the current module and all of its parents public? inside_public_path: bool, exact_paths: DefIdMap>, + modules: Vec>, } impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { @@ -80,12 +90,19 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { // If the root is re-exported, terminate all recursion. let mut stack = LocalDefIdSet::default(); stack.insert(CRATE_DEF_ID); + let om = Module::new( + cx.tcx.crate_name(LOCAL_CRATE), + CRATE_DEF_ID, + cx.tcx.hir().root_module().spans.inner_span, + ); + RustdocVisitor { cx, view_item_stack: stack, inlining: false, inside_public_path: true, exact_paths: Default::default(), + modules: vec![om], } } @@ -95,12 +112,10 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { } pub(crate) fn visit(mut self) -> Module<'tcx> { - let mut top_level_module = self.visit_mod_contents( - CRATE_DEF_ID, - self.cx.tcx.hir().root_module(), - self.cx.tcx.crate_name(LOCAL_CRATE), - None, - ); + let root_module = self.cx.tcx.hir().root_module(); + self.visit_mod_contents(CRATE_DEF_ID, root_module); + + let mut top_level_module = self.modules.pop().unwrap(); // `#[macro_export] macro_rules!` items are reexported at the top level of the // crate, regardless of where they're defined. We want to document the @@ -115,15 +130,13 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { // macro in the same module. let mut inserted = FxHashSet::default(); for export in self.cx.tcx.module_reexports(CRATE_DEF_ID).unwrap_or(&[]) { - if let Res::Def(DefKind::Macro(_), def_id) = export.res { - if let Some(local_def_id) = def_id.as_local() { - if self.cx.tcx.has_attr(def_id, sym::macro_export) { - if inserted.insert(def_id) { - let item = self.cx.tcx.hir().expect_item(local_def_id); - top_level_module.items.push((item, None, None)); - } - } - } + if let Res::Def(DefKind::Macro(_), def_id) = export.res && + let Some(local_def_id) = def_id.as_local() && + self.cx.tcx.has_attr(def_id, sym::macro_export) && + inserted.insert(def_id) + { + let item = self.cx.tcx.hir().expect_item(local_def_id); + top_level_module.items.push((item, None, None)); } } @@ -157,23 +170,22 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { top_level_module } - fn visit_mod_contents( - &mut self, - def_id: LocalDefId, - m: &'tcx hir::Mod<'tcx>, - name: Symbol, - parent_id: Option, - ) -> Module<'tcx> { - let mut om = Module::new(name, def_id, m.spans.inner_span); + /// This method will go through the given module items in two passes: + /// 1. The items which are not glob imports/reexports. + /// 2. The glob imports/reexports. + fn visit_mod_contents(&mut self, def_id: LocalDefId, m: &'tcx hir::Mod<'tcx>) { + debug!("Going through module {:?}", m); // Keep track of if there were any private modules in the path. let orig_inside_public_path = self.inside_public_path; self.inside_public_path &= self.cx.tcx.local_visibility(def_id).is_public(); + + // Reimplementation of `walk_mod` because we need to do it in two passes (explanations in + // the second loop): for &i in m.item_ids { let item = self.cx.tcx.hir().item(i); - if matches!(item.kind, hir::ItemKind::Use(_, hir::UseKind::Glob)) { - continue; + if !matches!(item.kind, hir::ItemKind::Use(_, hir::UseKind::Glob)) { + self.visit_item(item); } - self.visit_item(item, None, &mut om, parent_id); } for &i in m.item_ids { let item = self.cx.tcx.hir().item(i); @@ -181,11 +193,11 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { // Later passes in rustdoc will de-duplicate by name and kind, so if glob- // imported items appear last, then they'll be the ones that get discarded. if matches!(item.kind, hir::ItemKind::Use(_, hir::UseKind::Glob)) { - self.visit_item(item, None, &mut om, parent_id); + self.visit_item(item); } } self.inside_public_path = orig_inside_public_path; - om + debug!("Leaving module {:?}", m); } /// Tries to resolve the target of a `pub use` statement and inlines the @@ -203,7 +215,6 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { res: Res, renamed: Option, glob: bool, - om: &mut Module<'tcx>, please_inline: bool, ) -> bool { debug!("maybe_inline_local res: {:?}", res); @@ -213,33 +224,30 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { } let tcx = self.cx.tcx; - let Some(res_did) = res.opt_def_id() else { + let Some(ori_res_did) = res.opt_def_id() else { return false; }; let use_attrs = tcx.hir().attrs(tcx.hir().local_def_id_to_hir_id(def_id)); // Don't inline `doc(hidden)` imports so they can be stripped at a later stage. let is_no_inline = use_attrs.lists(sym::doc).has_word(sym::no_inline) - || tcx.is_doc_hidden(def_id.to_def_id()); + || use_attrs.lists(sym::doc).has_word(sym::hidden); // For cross-crate impl inlining we need to know whether items are // reachable in documentation -- a previously unreachable item can be // made reachable by cross-crate inlining which we're checking here. // (this is done here because we need to know this upfront). - if !res_did.is_local() && !is_no_inline { - crate::visit_lib::lib_embargo_visit_item(self.cx, res_did); + if !ori_res_did.is_local() && !is_no_inline { + crate::visit_lib::lib_embargo_visit_item(self.cx, ori_res_did); return false; } - let Some(res_did) = res_did.as_local() else { + let Some(res_did) = ori_res_did.as_local() else { return false; }; - let is_private = !self - .cx - .cache - .effective_visibilities - .is_directly_public(self.cx.tcx, res_did.to_def_id()); + let is_private = + !self.cx.cache.effective_visibilities.is_directly_public(self.cx.tcx, ori_res_did); let is_hidden = inherits_doc_hidden(self.cx.tcx, res_did); // Only inline if requested or if the item would otherwise be stripped. @@ -256,20 +264,20 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { let prev = mem::replace(&mut self.inlining, true); for &i in m.item_ids { let i = self.cx.tcx.hir().item(i); - self.visit_item(i, None, om, Some(def_id)); + self.visit_item_inner(i, None, Some(def_id)); } self.inlining = prev; true } Node::Item(it) if !glob => { let prev = mem::replace(&mut self.inlining, true); - self.visit_item(it, renamed, om, Some(def_id)); + self.visit_item_inner(it, renamed, Some(def_id)); self.inlining = prev; true } Node::ForeignItem(it) if !glob => { let prev = mem::replace(&mut self.inlining, true); - self.visit_foreign_item(it, renamed, om); + self.visit_foreign_item_inner(it, renamed); self.inlining = prev; true } @@ -279,18 +287,28 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { ret } - fn visit_item( + #[inline] + fn add_to_current_mod( &mut self, item: &'tcx hir::Item<'_>, renamed: Option, - om: &mut Module<'tcx>, parent_id: Option, ) { + self.modules.last_mut().unwrap().items.push((item, renamed, parent_id)) + } + + fn visit_item_inner( + &mut self, + item: &'tcx hir::Item<'_>, + renamed: Option, + import_id: Option, + ) -> bool { debug!("visiting item {:?}", item); let name = renamed.unwrap_or(item.ident.name); + let tcx = self.cx.tcx; let def_id = item.owner_id.to_def_id(); - let is_pub = self.cx.tcx.visibility(def_id).is_public(); + let is_pub = tcx.visibility(def_id).is_public(); if is_pub { self.store_path(item.owner_id.to_def_id()); @@ -299,8 +317,8 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { match item.kind { hir::ItemKind::ForeignMod { items, .. } => { for item in items { - let item = self.cx.tcx.hir().foreign_item(item.id); - self.visit_foreign_item(item, None, om); + let item = tcx.hir().foreign_item(item.id); + self.visit_foreign_item_inner(item, None); } } // If we're inlining, skip private items or item reexported as "_". @@ -315,7 +333,8 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { continue; } - let attrs = self.cx.tcx.hir().attrs(item.hir_id()); + let attrs = + tcx.hir().attrs(tcx.hir().local_def_id_to_hir_id(item.owner_id.def_id)); // If there was a private module in the current path then don't bother inlining // anything as it will probably be stripped anyway. @@ -333,14 +352,13 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { res, ident, is_glob, - om, please_inline, ) { continue; } } - om.items.push((item, renamed, parent_id)) + self.add_to_current_mod(item, renamed, import_id); } } hir::ItemKind::Macro(ref macro_def, _) => { @@ -357,14 +375,14 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { let def_id = item.owner_id.to_def_id(); let is_macro_2_0 = !macro_def.macro_rules; - let nonexported = !self.cx.tcx.has_attr(def_id, sym::macro_export); + let nonexported = !tcx.has_attr(def_id, sym::macro_export); if is_macro_2_0 || nonexported || self.inlining { - om.items.push((item, renamed, None)); + self.add_to_current_mod(item, renamed, None); } } hir::ItemKind::Mod(ref m) => { - om.mods.push(self.visit_mod_contents(item.owner_id.def_id, m, name, parent_id)); + self.enter_mod(item.owner_id.def_id, m, name); } hir::ItemKind::Fn(..) | hir::ItemKind::ExternCrate(..) @@ -375,33 +393,87 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { | hir::ItemKind::OpaqueTy(..) | hir::ItemKind::Static(..) | hir::ItemKind::Trait(..) - | hir::ItemKind::TraitAlias(..) => om.items.push((item, renamed, parent_id)), + | hir::ItemKind::TraitAlias(..) => { + self.add_to_current_mod(item, renamed, import_id); + } hir::ItemKind::Const(..) => { // Underscore constants do not correspond to a nameable item and // so are never useful in documentation. if name != kw::Underscore { - om.items.push((item, renamed, parent_id)); + self.add_to_current_mod(item, renamed, import_id); } } hir::ItemKind::Impl(impl_) => { // Don't duplicate impls when inlining or if it's implementing a trait, we'll pick // them up regardless of where they're located. if !self.inlining && impl_.of_trait.is_none() { - om.items.push((item, None, None)); + self.add_to_current_mod(item, None, None); } } } + true } - fn visit_foreign_item( + fn visit_foreign_item_inner( &mut self, item: &'tcx hir::ForeignItem<'_>, renamed: Option, - om: &mut Module<'tcx>, ) { // If inlining we only want to include public functions. if !self.inlining || self.cx.tcx.visibility(item.owner_id).is_public() { - om.foreigns.push((item, renamed)); + self.modules.last_mut().unwrap().foreigns.push((item, renamed)); } } + + /// This method will create a new module and push it onto the "modules stack" then call + /// `visit_mod_contents`. Once done, it'll remove it from the "modules stack" and instead + /// add into the list of modules of the current module. + fn enter_mod(&mut self, id: LocalDefId, m: &'tcx hir::Mod<'tcx>, name: Symbol) { + self.modules.push(Module::new(name, id, m.spans.inner_span)); + + self.visit_mod_contents(id, m); + + let last = self.modules.pop().unwrap(); + self.modules.last_mut().unwrap().mods.push(last); + } +} + +// We need to implement this visitor so it'll go everywhere and retrieve items we're interested in +// such as impl blocks in const blocks. +impl<'a, 'tcx> Visitor<'tcx> for RustdocVisitor<'a, 'tcx> { + type NestedFilter = nested_filter::All; + + fn nested_visit_map(&mut self) -> Self::Map { + self.cx.tcx.hir() + } + + fn visit_item(&mut self, i: &'tcx hir::Item<'tcx>) { + if self.visit_item_inner(i, None, None) { + walk_item(self, i); + } + } + + fn visit_mod(&mut self, _: &hir::Mod<'tcx>, _: Span, _: hir::HirId) { + // Handled in `visit_item_inner` + } + + fn visit_use(&mut self, _: &hir::UsePath<'tcx>, _: hir::HirId) { + // Handled in `visit_item_inner` + } + + fn visit_path(&mut self, _: &hir::Path<'tcx>, _: hir::HirId) { + // Handled in `visit_item_inner` + } + + fn visit_label(&mut self, _: &rustc_ast::Label) { + // Unneeded. + } + + fn visit_infer(&mut self, _: &hir::InferArg) { + // Unneeded. + } + + fn visit_lifetime(&mut self, _: &hir::Lifetime) { + // Unneeded. + } } diff --git a/src/tools/miri/rust-version b/src/tools/miri/rust-version index e0abc4bc9318..7bea079bb84b 100644 --- a/src/tools/miri/rust-version +++ b/src/tools/miri/rust-version @@ -1 +1 @@ -f3126500f25114ba4e0ac3e76694dd45a22de56d +dffea43fc1102bdfe16d88ed412c23d4f0f08d9d diff --git a/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs b/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs index ec555ba2895c..4e6ff28d6ec7 100644 --- a/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs +++ b/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs @@ -81,21 +81,18 @@ impl NewPermission { protector: None, } } else if pointee.is_unpin(*cx.tcx, cx.param_env()) { - // A regular full mutable reference. + // A regular full mutable reference. On `FnEntry` this is `noalias` and `dereferenceable`. NewPermission::Uniform { perm: Permission::Unique, access: Some(AccessKind::Write), protector, } } else { + // `!Unpin` dereferences do not get `noalias` nor `dereferenceable`. NewPermission::Uniform { perm: Permission::SharedReadWrite, - // FIXME: We emit `dereferenceable` for `!Unpin` mutable references, so we - // should do fake accesses here. But then we run into - // , so for now - // we don't do that. access: None, - protector, + protector: None, } } } @@ -109,6 +106,7 @@ impl NewPermission { } } ty::Ref(_, _pointee, Mutability::Not) => { + // Shared references. If frozen, these get `noalias` and `dereferenceable`; otherwise neither. NewPermission::FreezeSensitive { freeze_perm: Permission::SharedReadOnly, freeze_access: Some(AccessKind::Read), @@ -137,6 +135,31 @@ impl NewPermission { } } + fn from_box_ty<'tcx>( + ty: Ty<'tcx>, + kind: RetagKind, + cx: &crate::MiriInterpCx<'_, 'tcx>, + ) -> Self { + // `ty` is not the `Box` but the field of the Box with this pointer (due to allocator handling). + let pointee = ty.builtin_deref(true).unwrap().ty; + if pointee.is_unpin(*cx.tcx, cx.param_env()) { + // A regular box. On `FnEntry` this is `noalias`, but not `dereferenceable` (hence only + // a weak protector). + NewPermission::Uniform { + perm: Permission::Unique, + access: Some(AccessKind::Write), + protector: (kind == RetagKind::FnEntry).then_some(ProtectorKind::WeakProtector), + } + } else { + // `!Unpin` boxes do not get `noalias` nor `dereferenceable`. + NewPermission::Uniform { + perm: Permission::SharedReadWrite, + access: None, + protector: None, + } + } + } + fn protector(&self) -> Option { match self { NewPermission::Uniform { protector, .. } => *protector, @@ -916,12 +939,7 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { fn visit_box(&mut self, place: &PlaceTy<'tcx, Provenance>) -> InterpResult<'tcx> { // Boxes get a weak protectors, since they may be deallocated. - let new_perm = NewPermission::Uniform { - perm: Permission::Unique, - access: Some(AccessKind::Write), - protector: (self.kind == RetagKind::FnEntry) - .then_some(ProtectorKind::WeakProtector), - }; + let new_perm = NewPermission::from_box_ty(place.layout.ty, self.kind, self.ecx); self.retag_ptr_inplace(place, new_perm, self.retag_cause) } diff --git a/src/tools/miri/tests/fail/stacked_borrows/deallocate_against_protector2.rs b/src/tools/miri/tests/fail/stacked_borrows/deallocate_against_protector2.rs deleted file mode 100644 index fd67dccd14df..000000000000 --- a/src/tools/miri/tests/fail/stacked_borrows/deallocate_against_protector2.rs +++ /dev/null @@ -1,16 +0,0 @@ -//@error-pattern: /deallocating while item \[SharedReadWrite for .*\] is strongly protected/ -use std::marker::PhantomPinned; - -pub struct NotUnpin(i32, PhantomPinned); - -fn inner(x: &mut NotUnpin, f: fn(&mut NotUnpin)) { - // `f` may mutate, but it may not deallocate! - f(x) -} - -fn main() { - inner(Box::leak(Box::new(NotUnpin(0, PhantomPinned))), |x| { - let raw = x as *mut _; - drop(unsafe { Box::from_raw(raw) }); - }); -} diff --git a/src/tools/miri/tests/fail/stacked_borrows/deallocate_against_protector2.stderr b/src/tools/miri/tests/fail/stacked_borrows/deallocate_against_protector2.stderr deleted file mode 100644 index 47cfa0de7258..000000000000 --- a/src/tools/miri/tests/fail/stacked_borrows/deallocate_against_protector2.stderr +++ /dev/null @@ -1,38 +0,0 @@ -error: Undefined Behavior: deallocating while item [SharedReadWrite for ] is strongly protected by call ID - --> RUSTLIB/alloc/src/alloc.rs:LL:CC - | -LL | unsafe { __rust_dealloc(ptr, layout.size(), layout.align()) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ deallocating while item [SharedReadWrite for ] is strongly protected by call ID - | - = help: this indicates a potential bug in the program: it performed an invalid operation, but the Stacked Borrows rules it violated are still experimental - = help: see https://github.com/rust-lang/unsafe-code-guidelines/blob/master/wip/stacked-borrows.md for further information - = note: BACKTRACE: - = note: inside `std::alloc::dealloc` at RUSTLIB/alloc/src/alloc.rs:LL:CC - = note: inside `::deallocate` at RUSTLIB/alloc/src/alloc.rs:LL:CC - = note: inside `alloc::alloc::box_free::` at RUSTLIB/alloc/src/alloc.rs:LL:CC - = note: inside `std::ptr::drop_in_place::> - shim(Some(std::boxed::Box))` at RUSTLIB/core/src/ptr/mod.rs:LL:CC - = note: inside `std::mem::drop::>` at RUSTLIB/core/src/mem/mod.rs:LL:CC -note: inside closure - --> $DIR/deallocate_against_protector2.rs:LL:CC - | -LL | drop(unsafe { Box::from_raw(raw) }); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = note: inside `<[closure@$DIR/deallocate_against_protector2.rs:LL:CC] as std::ops::FnOnce<(&mut NotUnpin,)>>::call_once - shim` at RUSTLIB/core/src/ops/function.rs:LL:CC -note: inside `inner` - --> $DIR/deallocate_against_protector2.rs:LL:CC - | -LL | f(x) - | ^^^^ -note: inside `main` - --> $DIR/deallocate_against_protector2.rs:LL:CC - | -LL | / inner(Box::leak(Box::new(NotUnpin(0, PhantomPinned))), |x| { -LL | | let raw = x as *mut _; -LL | | drop(unsafe { Box::from_raw(raw) }); -LL | | }); - | |______^ - -note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace - -error: aborting due to previous error - diff --git a/src/tools/miri/tests/pass/stacked-borrows/future-self-referential.rs b/src/tools/miri/tests/pass/stacked-borrows/future-self-referential.rs index 96fc0be344db..6994def16a1d 100644 --- a/src/tools/miri/tests/pass/stacked-borrows/future-self-referential.rs +++ b/src/tools/miri/tests/pass/stacked-borrows/future-self-referential.rs @@ -26,6 +26,19 @@ impl Future for Delay { } } +fn mk_waker() -> Waker { + use std::sync::Arc; + + struct MyWaker; + impl Wake for MyWaker { + fn wake(self: Arc) { + unimplemented!() + } + } + + Waker::from(Arc::new(MyWaker)) +} + async fn do_stuff() { (&mut Delay::new(1)).await; } @@ -73,16 +86,7 @@ impl Future for DoStuff { } fn run_fut(fut: impl Future) -> T { - use std::sync::Arc; - - struct MyWaker; - impl Wake for MyWaker { - fn wake(self: Arc) { - unimplemented!() - } - } - - let waker = Waker::from(Arc::new(MyWaker)); + let waker = mk_waker(); let mut context = Context::from_waker(&waker); let mut pinned = pin!(fut); @@ -94,7 +98,37 @@ fn run_fut(fut: impl Future) -> T { } } +fn self_referential_box() { + let waker = mk_waker(); + let cx = &mut Context::from_waker(&waker); + + async fn my_fut() -> i32 { + let val = 10; + let val_ref = &val; + + let _ = Delay::new(1).await; + + *val_ref + } + + fn box_poll( + mut f: Pin>, + cx: &mut Context<'_>, + ) -> (Pin>, Poll) { + let p = f.as_mut().poll(cx); + (f, p) + } + + let my_fut = Box::pin(my_fut()); + let (my_fut, p1) = box_poll(my_fut, cx); + assert!(p1.is_pending()); + let (my_fut, p2) = box_poll(my_fut, cx); + assert!(p2.is_ready()); + drop(my_fut); +} + fn main() { run_fut(do_stuff()); run_fut(DoStuff::new()); + self_referential_box(); } diff --git a/src/tools/miri/tests/pass/stacked-borrows/stacked-borrows.rs b/src/tools/miri/tests/pass/stacked-borrows/stacked-borrows.rs index ef6eb346c17b..8e78efa73c75 100644 --- a/src/tools/miri/tests/pass/stacked-borrows/stacked-borrows.rs +++ b/src/tools/miri/tests/pass/stacked-borrows/stacked-borrows.rs @@ -19,6 +19,7 @@ fn main() { array_casts(); mut_below_shr(); wide_raw_ptr_in_tuple(); + not_unpin_not_protected(); } // Make sure that reading from an `&mut` does, like reborrowing to `&`, @@ -219,3 +220,22 @@ fn wide_raw_ptr_in_tuple() { // Make sure the fn ptr part of the vtable is still fine. r.type_id(); } + +fn not_unpin_not_protected() { + // `&mut !Unpin`, at least for now, does not get `noalias` nor `dereferenceable`, so we also + // don't add protectors. (We could, but until we have a better idea for where we want to go with + // the self-referntial-generator situation, it does not seem worth the potential trouble.) + use std::marker::PhantomPinned; + + pub struct NotUnpin(i32, PhantomPinned); + + fn inner(x: &mut NotUnpin, f: fn(&mut NotUnpin)) { + // `f` may mutate, but it may not deallocate! + f(x) + } + + inner(Box::leak(Box::new(NotUnpin(0, PhantomPinned))), |x| { + let raw = x as *mut _; + drop(unsafe { Box::from_raw(raw) }); + }); +} diff --git a/src/tools/rustfmt/src/macros.rs b/src/tools/rustfmt/src/macros.rs index d58f7547fefb..7978d8cba954 100644 --- a/src/tools/rustfmt/src/macros.rs +++ b/src/tools/rustfmt/src/macros.rs @@ -13,7 +13,7 @@ use std::collections::HashMap; use std::panic::{catch_unwind, AssertUnwindSafe}; use rustc_ast::token::{BinOpToken, Delimiter, Token, TokenKind}; -use rustc_ast::tokenstream::{Cursor, TokenStream, TokenTree}; +use rustc_ast::tokenstream::{TokenStream, TokenTree, TokenTreeCursor}; use rustc_ast::{ast, ptr}; use rustc_ast_pretty::pprust; use rustc_span::{ @@ -736,7 +736,7 @@ impl MacroArgParser { self.buf.clear(); } - fn add_meta_variable(&mut self, iter: &mut Cursor) -> Option<()> { + fn add_meta_variable(&mut self, iter: &mut TokenTreeCursor) -> Option<()> { match iter.next() { Some(TokenTree::Token( Token { @@ -768,7 +768,7 @@ impl MacroArgParser { &mut self, inner: Vec, delim: Delimiter, - iter: &mut Cursor, + iter: &mut TokenTreeCursor, ) -> Option<()> { let mut buffer = String::new(); let mut first = true; @@ -1121,7 +1121,7 @@ pub(crate) fn macro_style(mac: &ast::MacCall, context: &RewriteContext<'_>) -> D // Currently we do not attempt to parse any further than that. #[derive(new)] struct MacroParser { - toks: Cursor, + toks: TokenTreeCursor, } impl MacroParser { diff --git a/tests/codegen/function-arguments-noopt.rs b/tests/codegen/function-arguments-noopt.rs index ff76405a4ea3..0c62e0d35e36 100644 --- a/tests/codegen/function-arguments-noopt.rs +++ b/tests/codegen/function-arguments-noopt.rs @@ -29,6 +29,12 @@ pub fn borrow(x: &i32) -> &i32 { x } +// CHECK: align 4 {{i32\*|ptr}} @borrow_mut({{i32\*|ptr}} align 4 %x) +#[no_mangle] +pub fn borrow_mut(x: &mut i32) -> &mut i32 { + x +} + // CHECK-LABEL: @borrow_call #[no_mangle] pub fn borrow_call(x: &i32, f: fn(&i32) -> &i32) -> &i32 { diff --git a/tests/codegen/function-arguments.rs b/tests/codegen/function-arguments.rs index 1f979d7b90a7..96dfde18683e 100644 --- a/tests/codegen/function-arguments.rs +++ b/tests/codegen/function-arguments.rs @@ -85,6 +85,12 @@ pub fn option_nonzero_int(x: Option) -> Option { pub fn readonly_borrow(_: &i32) { } +// CHECK: noundef align 4 dereferenceable(4) {{i32\*|ptr}} @readonly_borrow_ret() +#[no_mangle] +pub fn readonly_borrow_ret() -> &'static i32 { + loop {} +} + // CHECK: @static_borrow({{i32\*|ptr}} noalias noundef readonly align 4 dereferenceable(4) %_1) // static borrow may be captured #[no_mangle] @@ -115,9 +121,17 @@ pub fn mutable_unsafe_borrow(_: &mut UnsafeInner) { pub fn mutable_borrow(_: &mut i32) { } +// CHECK: noundef align 4 dereferenceable(4) {{i32\*|ptr}} @mutable_borrow_ret() #[no_mangle] -// CHECK: @mutable_notunpin_borrow({{i32\*|ptr}} noundef align 4 dereferenceable(4) %_1) +pub fn mutable_borrow_ret() -> &'static mut i32 { + loop {} +} + +#[no_mangle] +// CHECK: @mutable_notunpin_borrow({{i32\*|ptr}} noundef nonnull align 4 %_1) // This one is *not* `noalias` because it might be self-referential. +// It is also not `dereferenceable` due to +// . pub fn mutable_notunpin_borrow(_: &mut NotUnpin) { } @@ -167,6 +181,12 @@ pub fn _box(x: Box) -> Box { x } +// CHECK: noundef nonnull align 4 {{i32\*|ptr}} @notunpin_box({{i32\*|ptr}} noundef nonnull align 4 %x) +#[no_mangle] +pub fn notunpin_box(x: Box) -> Box { + x +} + // CHECK: @struct_return({{%S\*|ptr}} noalias nocapture noundef sret(%S) dereferenceable(32){{( %0)?}}) #[no_mangle] pub fn struct_return() -> S { @@ -233,12 +253,12 @@ pub fn trait_raw(_: *const dyn Drop) { // CHECK: @trait_box({{\{\}\*|ptr}} noalias noundef nonnull align 1{{( %0)?}}, {{.+}} noalias noundef readonly align {{.*}} dereferenceable({{.*}}){{( %1)?}}) #[no_mangle] -pub fn trait_box(_: Box) { +pub fn trait_box(_: Box) { } // CHECK: { {{i8\*|ptr}}, {{i8\*|ptr}} } @trait_option({{i8\*|ptr}} noalias noundef align 1 %x.0, {{i8\*|ptr}} %x.1) #[no_mangle] -pub fn trait_option(x: Option>) -> Option> { +pub fn trait_option(x: Option>) -> Option> { x } diff --git a/tests/mir-opt/building/async_await.a-{closure#0}.generator_resume.0.mir b/tests/mir-opt/building/async_await.a-{closure#0}.generator_resume.0.mir index 2a7f90fe9476..accb504c088e 100644 --- a/tests/mir-opt/building/async_await.a-{closure#0}.generator_resume.0.mir +++ b/tests/mir-opt/building/async_await.a-{closure#0}.generator_resume.0.mir @@ -24,9 +24,7 @@ fn a::{closure#0}(_1: Pin<&mut [async fn body@$DIR/async_await.rs:11:14: 11:16]> bb1: { _4 = move _2; // scope 0 at $DIR/async_await.rs:+0:14: +0:16 _3 = const (); // scope 0 at $DIR/async_await.rs:+0:14: +0:16 - Deinit(_0); // scope 0 at $DIR/async_await.rs:+0:16: +0:16 - ((_0 as Ready).0: ()) = move _3; // scope 0 at $DIR/async_await.rs:+0:16: +0:16 - discriminant(_0) = 0; // scope 0 at $DIR/async_await.rs:+0:16: +0:16 + _0 = Poll::<()>::Ready(move _3); // scope 0 at $DIR/async_await.rs:+0:16: +0:16 discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:11:14: 11:16]))) = 1; // scope 0 at $DIR/async_await.rs:+0:16: +0:16 return; // scope 0 at $DIR/async_await.rs:+0:16: +0:16 } diff --git a/tests/mir-opt/building/async_await.b-{closure#0}.generator_resume.0.mir b/tests/mir-opt/building/async_await.b-{closure#0}.generator_resume.0.mir index 1449247aedad..ad4e5c6fcfd7 100644 --- a/tests/mir-opt/building/async_await.b-{closure#0}.generator_resume.0.mir +++ b/tests/mir-opt/building/async_await.b-{closure#0}.generator_resume.0.mir @@ -167,8 +167,7 @@ fn b::{closure#0}(_1: Pin<&mut [async fn body@$DIR/async_await.rs:14:18: 17:2]>, StorageLive(_19); // scope 1 at $DIR/async_await.rs:+1:8: +1:14 StorageLive(_20); // scope 1 at $DIR/async_await.rs:+1:8: +1:14 _20 = (); // scope 1 at $DIR/async_await.rs:+1:8: +1:14 - Deinit(_0); // scope 1 at $DIR/async_await.rs:+1:8: +1:14 - discriminant(_0) = 1; // scope 1 at $DIR/async_await.rs:+1:8: +1:14 + _0 = Poll::<()>::Pending; // scope 1 at $DIR/async_await.rs:+1:8: +1:14 discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2]))) = 3; // scope 1 at $DIR/async_await.rs:+1:8: +1:14 return; // scope 1 at $DIR/async_await.rs:+1:8: +1:14 } @@ -276,8 +275,7 @@ fn b::{closure#0}(_1: Pin<&mut [async fn body@$DIR/async_await.rs:14:18: 17:2]>, StorageLive(_35); // scope 4 at $DIR/async_await.rs:+2:8: +2:14 StorageLive(_36); // scope 4 at $DIR/async_await.rs:+2:8: +2:14 _36 = (); // scope 4 at $DIR/async_await.rs:+2:8: +2:14 - Deinit(_0); // scope 4 at $DIR/async_await.rs:+2:8: +2:14 - discriminant(_0) = 1; // scope 4 at $DIR/async_await.rs:+2:8: +2:14 + _0 = Poll::<()>::Pending; // scope 4 at $DIR/async_await.rs:+2:8: +2:14 discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2]))) = 4; // scope 4 at $DIR/async_await.rs:+2:8: +2:14 return; // scope 4 at $DIR/async_await.rs:+2:8: +2:14 } @@ -317,9 +315,7 @@ fn b::{closure#0}(_1: Pin<&mut [async fn body@$DIR/async_await.rs:14:18: 17:2]>, } bb26: { - Deinit(_0); // scope 0 at $DIR/async_await.rs:+3:2: +3:2 - ((_0 as Ready).0: ()) = move _37; // scope 0 at $DIR/async_await.rs:+3:2: +3:2 - discriminant(_0) = 0; // scope 0 at $DIR/async_await.rs:+3:2: +3:2 + _0 = Poll::<()>::Ready(move _37); // scope 0 at $DIR/async_await.rs:+3:2: +3:2 discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2]))) = 1; // scope 0 at $DIR/async_await.rs:+3:2: +3:2 return; // scope 0 at $DIR/async_await.rs:+3:2: +3:2 } diff --git a/tests/mir-opt/combine_clone_of_primitives.{impl#0}-clone.InstCombine.diff b/tests/mir-opt/combine_clone_of_primitives.{impl#0}-clone.InstCombine.diff index 6f01553eef6d..20b0fb9643ee 100644 --- a/tests/mir-opt/combine_clone_of_primitives.{impl#0}-clone.InstCombine.diff +++ b/tests/mir-opt/combine_clone_of_primitives.{impl#0}-clone.InstCombine.diff @@ -61,10 +61,7 @@ bb3: { StorageDead(_9); // scope 0 at $DIR/combine_clone_of_primitives.rs:10:15: 10:16 - Deinit(_0); // scope 0 at $DIR/combine_clone_of_primitives.rs:+0:10: +0:15 - (_0.0: T) = move _2; // scope 0 at $DIR/combine_clone_of_primitives.rs:+0:10: +0:15 - (_0.1: u64) = move _5; // scope 0 at $DIR/combine_clone_of_primitives.rs:+0:10: +0:15 - (_0.2: [f32; 3]) = move _8; // scope 0 at $DIR/combine_clone_of_primitives.rs:+0:10: +0:15 + _0 = MyThing:: { v: move _2, i: move _5, a: move _8 }; // scope 0 at $DIR/combine_clone_of_primitives.rs:+0:10: +0:15 StorageDead(_8); // scope 0 at $DIR/combine_clone_of_primitives.rs:+0:14: +0:15 StorageDead(_5); // scope 0 at $DIR/combine_clone_of_primitives.rs:+0:14: +0:15 StorageDead(_2); // scope 0 at $DIR/combine_clone_of_primitives.rs:+0:14: +0:15 diff --git a/tests/mir-opt/const_allocation.main.ConstProp.after.32bit.mir b/tests/mir-opt/const_allocation.main.ConstProp.after.32bit.mir index 6140fc52f650..9b69f79c28ee 100644 --- a/tests/mir-opt/const_allocation.main.ConstProp.after.32bit.mir +++ b/tests/mir-opt/const_allocation.main.ConstProp.after.32bit.mir @@ -26,17 +26,17 @@ alloc1 (static: FOO, size: 8, align: 4) { alloc18 (size: 48, align: 4) { 0x00 │ 00 00 00 00 __ __ __ __ ╾─alloc5──╼ 00 00 00 00 │ ....░░░░╾──╼.... - 0x10 │ 00 00 00 00 __ __ __ __ ╾─alloc9──╼ 02 00 00 00 │ ....░░░░╾──╼.... - 0x20 │ 01 00 00 00 2a 00 00 00 ╾─alloc14─╼ 03 00 00 00 │ ....*...╾──╼.... + 0x10 │ 00 00 00 00 __ __ __ __ ╾─alloc8──╼ 02 00 00 00 │ ....░░░░╾──╼.... + 0x20 │ 01 00 00 00 2a 00 00 00 ╾─alloc13─╼ 03 00 00 00 │ ....*...╾──╼.... } alloc5 (size: 0, align: 4) {} -alloc9 (size: 16, align: 4) { - ╾─alloc8──╼ 03 00 00 00 ╾─alloc10─╼ 03 00 00 00 │ ╾──╼....╾──╼.... +alloc8 (size: 16, align: 4) { + ╾─alloc9──╼ 03 00 00 00 ╾─alloc10─╼ 03 00 00 00 │ ╾──╼....╾──╼.... } -alloc8 (size: 3, align: 1) { +alloc9 (size: 3, align: 1) { 66 6f 6f │ foo } @@ -44,12 +44,12 @@ alloc10 (size: 3, align: 1) { 62 61 72 │ bar } -alloc14 (size: 24, align: 4) { - 0x00 │ ╾─alloc13─╼ 03 00 00 00 ╾─alloc15─╼ 03 00 00 00 │ ╾──╼....╾──╼.... +alloc13 (size: 24, align: 4) { + 0x00 │ ╾─alloc14─╼ 03 00 00 00 ╾─alloc15─╼ 03 00 00 00 │ ╾──╼....╾──╼.... 0x10 │ ╾─alloc16─╼ 04 00 00 00 │ ╾──╼.... } -alloc13 (size: 3, align: 1) { +alloc14 (size: 3, align: 1) { 6d 65 68 │ meh } diff --git a/tests/mir-opt/const_allocation.main.ConstProp.after.64bit.mir b/tests/mir-opt/const_allocation.main.ConstProp.after.64bit.mir index b2ed23c6873c..d0f196e72458 100644 --- a/tests/mir-opt/const_allocation.main.ConstProp.after.64bit.mir +++ b/tests/mir-opt/const_allocation.main.ConstProp.after.64bit.mir @@ -27,19 +27,19 @@ alloc1 (static: FOO, size: 16, align: 8) { alloc18 (size: 72, align: 8) { 0x00 │ 00 00 00 00 __ __ __ __ ╾───────alloc5────────╼ │ ....░░░░╾──────╼ 0x10 │ 00 00 00 00 00 00 00 00 00 00 00 00 __ __ __ __ │ ............â–‘â–‘â–‘â–‘ - 0x20 │ ╾───────alloc9────────╼ 02 00 00 00 00 00 00 00 │ ╾──────╼........ - 0x30 │ 01 00 00 00 2a 00 00 00 ╾───────alloc14───────╼ │ ....*...╾──────╼ + 0x20 │ ╾───────alloc8────────╼ 02 00 00 00 00 00 00 00 │ ╾──────╼........ + 0x30 │ 01 00 00 00 2a 00 00 00 ╾───────alloc13───────╼ │ ....*...╾──────╼ 0x40 │ 03 00 00 00 00 00 00 00 │ ........ } alloc5 (size: 0, align: 8) {} -alloc9 (size: 32, align: 8) { - 0x00 │ ╾───────alloc8────────╼ 03 00 00 00 00 00 00 00 │ ╾──────╼........ +alloc8 (size: 32, align: 8) { + 0x00 │ ╾───────alloc9────────╼ 03 00 00 00 00 00 00 00 │ ╾──────╼........ 0x10 │ ╾───────alloc10───────╼ 03 00 00 00 00 00 00 00 │ ╾──────╼........ } -alloc8 (size: 3, align: 1) { +alloc9 (size: 3, align: 1) { 66 6f 6f │ foo } @@ -47,13 +47,13 @@ alloc10 (size: 3, align: 1) { 62 61 72 │ bar } -alloc14 (size: 48, align: 8) { - 0x00 │ ╾───────alloc13───────╼ 03 00 00 00 00 00 00 00 │ ╾──────╼........ +alloc13 (size: 48, align: 8) { + 0x00 │ ╾───────alloc14───────╼ 03 00 00 00 00 00 00 00 │ ╾──────╼........ 0x10 │ ╾───────alloc15───────╼ 03 00 00 00 00 00 00 00 │ ╾──────╼........ 0x20 │ ╾───────alloc16───────╼ 04 00 00 00 00 00 00 00 │ ╾──────╼........ } -alloc13 (size: 3, align: 1) { +alloc14 (size: 3, align: 1) { 6d 65 68 │ meh } diff --git a/tests/mir-opt/const_debuginfo.main.ConstDebugInfo.diff b/tests/mir-opt/const_debuginfo.main.ConstDebugInfo.diff index 5e587be1f165..f1f53a481655 100644 --- a/tests/mir-opt/const_debuginfo.main.ConstDebugInfo.diff +++ b/tests/mir-opt/const_debuginfo.main.ConstDebugInfo.diff @@ -56,11 +56,8 @@ } bb0: { - StorageLive(_1); // scope 0 at $DIR/const_debuginfo.rs:+1:9: +1:10 _1 = const 1_u8; // scope 0 at $DIR/const_debuginfo.rs:+1:13: +1:16 - StorageLive(_2); // scope 1 at $DIR/const_debuginfo.rs:+2:9: +2:10 _2 = const 2_u8; // scope 1 at $DIR/const_debuginfo.rs:+2:13: +2:16 - StorageLive(_3); // scope 2 at $DIR/const_debuginfo.rs:+3:9: +3:10 _3 = const 3_u8; // scope 2 at $DIR/const_debuginfo.rs:+3:13: +3:16 StorageLive(_4); // scope 3 at $DIR/const_debuginfo.rs:+4:9: +4:12 StorageLive(_5); // scope 3 at $DIR/const_debuginfo.rs:+4:15: +4:20 @@ -75,33 +72,16 @@ StorageLive(_14); // scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10 StorageLive(_15); // scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10 StorageLive(_16); // scope 5 at $DIR/const_debuginfo.rs:+8:9: +8:10 - Deinit(_14); // scope 5 at $DIR/const_debuginfo.rs:+8:13: +8:34 - Deinit(_15); // scope 5 at $DIR/const_debuginfo.rs:+8:13: +8:34 - Deinit(_16); // scope 5 at $DIR/const_debuginfo.rs:+8:13: +8:34 _14 = const true; // scope 5 at $DIR/const_debuginfo.rs:+8:13: +8:34 _15 = const false; // scope 5 at $DIR/const_debuginfo.rs:+8:13: +8:34 _16 = const 123_u32; // scope 5 at $DIR/const_debuginfo.rs:+8:13: +8:34 StorageLive(_10); // scope 6 at $DIR/const_debuginfo.rs:+10:9: +10:10 - Deinit(_10); // scope 6 at $DIR/const_debuginfo.rs:+10:13: +10:24 - ((_10 as Some).0: u16) = const 99_u16; // scope 6 at $DIR/const_debuginfo.rs:+10:13: +10:24 - discriminant(_10) = 1; // scope 6 at $DIR/const_debuginfo.rs:+10:13: +10:24 - StorageLive(_17); // scope 7 at $DIR/const_debuginfo.rs:+12:9: +12:10 - StorageLive(_18); // scope 7 at $DIR/const_debuginfo.rs:+12:9: +12:10 - Deinit(_17); // scope 7 at $DIR/const_debuginfo.rs:+12:13: +12:35 - Deinit(_18); // scope 7 at $DIR/const_debuginfo.rs:+12:13: +12:35 + _10 = Option::::Some(const 99_u16); // scope 6 at $DIR/const_debuginfo.rs:+10:13: +10:24 _17 = const 32_u32; // scope 7 at $DIR/const_debuginfo.rs:+12:13: +12:35 _18 = const 32_u32; // scope 7 at $DIR/const_debuginfo.rs:+12:13: +12:35 StorageLive(_11); // scope 8 at $DIR/const_debuginfo.rs:+13:9: +13:10 - StorageLive(_12); // scope 8 at $DIR/const_debuginfo.rs:+13:13: +13:16 - _12 = const 32_u32; // scope 8 at $DIR/const_debuginfo.rs:+13:13: +13:16 - StorageLive(_13); // scope 8 at $DIR/const_debuginfo.rs:+13:19: +13:22 - _13 = const 32_u32; // scope 8 at $DIR/const_debuginfo.rs:+13:19: +13:22 _11 = const 64_u32; // scope 8 at $DIR/const_debuginfo.rs:+13:13: +13:22 - StorageDead(_13); // scope 8 at $DIR/const_debuginfo.rs:+13:21: +13:22 - StorageDead(_12); // scope 8 at $DIR/const_debuginfo.rs:+13:21: +13:22 StorageDead(_11); // scope 8 at $DIR/const_debuginfo.rs:+14:1: +14:2 - StorageDead(_17); // scope 7 at $DIR/const_debuginfo.rs:+14:1: +14:2 - StorageDead(_18); // scope 7 at $DIR/const_debuginfo.rs:+14:1: +14:2 StorageDead(_10); // scope 6 at $DIR/const_debuginfo.rs:+14:1: +14:2 StorageDead(_14); // scope 5 at $DIR/const_debuginfo.rs:+14:1: +14:2 StorageDead(_15); // scope 5 at $DIR/const_debuginfo.rs:+14:1: +14:2 diff --git a/tests/mir-opt/const_goto_storage.match_nested_if.ConstGoto.diff b/tests/mir-opt/const_goto_storage.match_nested_if.ConstGoto.diff index f54577259431..4dc98f856740 100644 --- a/tests/mir-opt/const_goto_storage.match_nested_if.ConstGoto.diff +++ b/tests/mir-opt/const_goto_storage.match_nested_if.ConstGoto.diff @@ -17,7 +17,7 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/const_goto_storage.rs:+1:9: +1:12 - StorageLive(_2); // scope 0 at $DIR/const_goto_storage.rs:+1:21: +1:23 -- Deinit(_2); // scope 0 at $DIR/const_goto_storage.rs:+1:21: +1:23 +- _2 = (); // scope 0 at $DIR/const_goto_storage.rs:+1:21: +1:23 - StorageLive(_3); // scope 0 at $DIR/const_goto_storage.rs:+2:15: +6:10 - StorageLive(_4); // scope 0 at $DIR/const_goto_storage.rs:+2:18: +2:76 - StorageLive(_5); // scope 0 at $DIR/const_goto_storage.rs:+2:21: +2:52 diff --git a/tests/mir-opt/const_prop/aggregate.foo.ConstProp.diff b/tests/mir-opt/const_prop/aggregate.foo.ConstProp.diff new file mode 100644 index 000000000000..6ac460db86f8 --- /dev/null +++ b/tests/mir-opt/const_prop/aggregate.foo.ConstProp.diff @@ -0,0 +1,55 @@ +- // MIR for `foo` before ConstProp ++ // MIR for `foo` after ConstProp + + fn foo(_1: u8) -> () { + debug x => _1; // in scope 0 at $DIR/aggregate.rs:+0:8: +0:9 + let mut _0: (); // return place in scope 0 at $DIR/aggregate.rs:+0:15: +0:15 + let _2: i32; // in scope 0 at $DIR/aggregate.rs:+2:9: +2:14 + let mut _3: i32; // in scope 0 at $DIR/aggregate.rs:+2:17: +2:25 + let mut _4: (i32, u8); // in scope 0 at $DIR/aggregate.rs:+2:17: +2:23 + let mut _5: u8; // in scope 0 at $DIR/aggregate.rs:+2:21: +2:22 + let mut _7: i32; // in scope 0 at $DIR/aggregate.rs:+3:18: +3:26 + let mut _8: (u8, i32); // in scope 0 at $DIR/aggregate.rs:+3:18: +3:24 + let mut _9: u8; // in scope 0 at $DIR/aggregate.rs:+3:19: +3:20 + scope 1 { + debug first => _2; // in scope 1 at $DIR/aggregate.rs:+2:9: +2:14 + let _6: i32; // in scope 1 at $DIR/aggregate.rs:+3:9: +3:15 + scope 2 { + debug second => _6; // in scope 2 at $DIR/aggregate.rs:+3:9: +3:15 + } + } + + bb0: { + StorageLive(_2); // scope 0 at $DIR/aggregate.rs:+2:9: +2:14 + StorageLive(_3); // scope 0 at $DIR/aggregate.rs:+2:17: +2:25 + StorageLive(_4); // scope 0 at $DIR/aggregate.rs:+2:17: +2:23 + StorageLive(_5); // scope 0 at $DIR/aggregate.rs:+2:21: +2:22 + _5 = _1; // scope 0 at $DIR/aggregate.rs:+2:21: +2:22 + _4 = (const 0_i32, move _5); // scope 0 at $DIR/aggregate.rs:+2:17: +2:23 + StorageDead(_5); // scope 0 at $DIR/aggregate.rs:+2:22: +2:23 +- _3 = (_4.0: i32); // scope 0 at $DIR/aggregate.rs:+2:17: +2:25 +- _2 = Add(move _3, const 1_i32); // scope 0 at $DIR/aggregate.rs:+2:17: +2:29 ++ _3 = const 0_i32; // scope 0 at $DIR/aggregate.rs:+2:17: +2:25 ++ _2 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+2:17: +2:29 + StorageDead(_3); // scope 0 at $DIR/aggregate.rs:+2:28: +2:29 + StorageDead(_4); // scope 0 at $DIR/aggregate.rs:+2:29: +2:30 + StorageLive(_6); // scope 1 at $DIR/aggregate.rs:+3:9: +3:15 + StorageLive(_7); // scope 1 at $DIR/aggregate.rs:+3:18: +3:26 + StorageLive(_8); // scope 1 at $DIR/aggregate.rs:+3:18: +3:24 + StorageLive(_9); // scope 1 at $DIR/aggregate.rs:+3:19: +3:20 + _9 = _1; // scope 1 at $DIR/aggregate.rs:+3:19: +3:20 + _8 = (move _9, const 1_i32); // scope 1 at $DIR/aggregate.rs:+3:18: +3:24 + StorageDead(_9); // scope 1 at $DIR/aggregate.rs:+3:23: +3:24 +- _7 = (_8.1: i32); // scope 1 at $DIR/aggregate.rs:+3:18: +3:26 +- _6 = Add(move _7, const 2_i32); // scope 1 at $DIR/aggregate.rs:+3:18: +3:30 ++ _7 = const 1_i32; // scope 1 at $DIR/aggregate.rs:+3:18: +3:26 ++ _6 = const 3_i32; // scope 1 at $DIR/aggregate.rs:+3:18: +3:30 + StorageDead(_7); // scope 1 at $DIR/aggregate.rs:+3:29: +3:30 + StorageDead(_8); // scope 1 at $DIR/aggregate.rs:+3:30: +3:31 + _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:15: +4:2 + StorageDead(_6); // scope 1 at $DIR/aggregate.rs:+4:1: +4:2 + StorageDead(_2); // scope 0 at $DIR/aggregate.rs:+4:1: +4:2 + return; // scope 0 at $DIR/aggregate.rs:+4:2: +4:2 + } + } + diff --git a/tests/mir-opt/const_prop/aggregate.foo.PreCodegen.after.mir b/tests/mir-opt/const_prop/aggregate.foo.PreCodegen.after.mir new file mode 100644 index 000000000000..2ef6d74e5284 --- /dev/null +++ b/tests/mir-opt/const_prop/aggregate.foo.PreCodegen.after.mir @@ -0,0 +1,49 @@ +// MIR for `foo` after PreCodegen + +fn foo(_1: u8) -> () { + debug x => _1; // in scope 0 at $DIR/aggregate.rs:+0:8: +0:9 + let mut _0: (); // return place in scope 0 at $DIR/aggregate.rs:+0:15: +0:15 + let _2: i32; // in scope 0 at $DIR/aggregate.rs:+2:9: +2:14 + let mut _3: i32; // in scope 0 at $DIR/aggregate.rs:+2:17: +2:25 + let mut _4: (i32, u8); // in scope 0 at $DIR/aggregate.rs:+2:17: +2:23 + let mut _5: u8; // in scope 0 at $DIR/aggregate.rs:+2:21: +2:22 + let mut _7: i32; // in scope 0 at $DIR/aggregate.rs:+3:18: +3:26 + let mut _8: (u8, i32); // in scope 0 at $DIR/aggregate.rs:+3:18: +3:24 + let mut _9: u8; // in scope 0 at $DIR/aggregate.rs:+3:19: +3:20 + scope 1 { + debug first => _2; // in scope 1 at $DIR/aggregate.rs:+2:9: +2:14 + let _6: i32; // in scope 1 at $DIR/aggregate.rs:+3:9: +3:15 + scope 2 { + debug second => _6; // in scope 2 at $DIR/aggregate.rs:+3:9: +3:15 + } + } + + bb0: { + StorageLive(_2); // scope 0 at $DIR/aggregate.rs:+2:9: +2:14 + StorageLive(_3); // scope 0 at $DIR/aggregate.rs:+2:17: +2:25 + StorageLive(_4); // scope 0 at $DIR/aggregate.rs:+2:17: +2:23 + StorageLive(_5); // scope 0 at $DIR/aggregate.rs:+2:21: +2:22 + _5 = _1; // scope 0 at $DIR/aggregate.rs:+2:21: +2:22 + _4 = (const 0_i32, move _5); // scope 0 at $DIR/aggregate.rs:+2:17: +2:23 + StorageDead(_5); // scope 0 at $DIR/aggregate.rs:+2:22: +2:23 + _3 = const 0_i32; // scope 0 at $DIR/aggregate.rs:+2:17: +2:25 + _2 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+2:17: +2:29 + StorageDead(_3); // scope 0 at $DIR/aggregate.rs:+2:28: +2:29 + StorageDead(_4); // scope 0 at $DIR/aggregate.rs:+2:29: +2:30 + StorageLive(_6); // scope 1 at $DIR/aggregate.rs:+3:9: +3:15 + StorageLive(_7); // scope 1 at $DIR/aggregate.rs:+3:18: +3:26 + StorageLive(_8); // scope 1 at $DIR/aggregate.rs:+3:18: +3:24 + StorageLive(_9); // scope 1 at $DIR/aggregate.rs:+3:19: +3:20 + _9 = _1; // scope 1 at $DIR/aggregate.rs:+3:19: +3:20 + _8 = (move _9, const 1_i32); // scope 1 at $DIR/aggregate.rs:+3:18: +3:24 + StorageDead(_9); // scope 1 at $DIR/aggregate.rs:+3:23: +3:24 + _7 = const 1_i32; // scope 1 at $DIR/aggregate.rs:+3:18: +3:26 + _6 = const 3_i32; // scope 1 at $DIR/aggregate.rs:+3:18: +3:30 + StorageDead(_7); // scope 1 at $DIR/aggregate.rs:+3:29: +3:30 + StorageDead(_8); // scope 1 at $DIR/aggregate.rs:+3:30: +3:31 + _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:15: +4:2 + StorageDead(_6); // scope 1 at $DIR/aggregate.rs:+4:1: +4:2 + StorageDead(_2); // scope 0 at $DIR/aggregate.rs:+4:1: +4:2 + return; // scope 0 at $DIR/aggregate.rs:+4:2: +4:2 + } +} diff --git a/tests/mir-opt/const_prop/aggregate.main.ConstProp.diff b/tests/mir-opt/const_prop/aggregate.main.ConstProp.diff index 04378dbf374d..f6e58955b4f6 100644 --- a/tests/mir-opt/const_prop/aggregate.main.ConstProp.diff +++ b/tests/mir-opt/const_prop/aggregate.main.ConstProp.diff @@ -3,9 +3,11 @@ fn main() -> () { let mut _0: (); // return place in scope 0 at $DIR/aggregate.rs:+0:11: +0:11 - let _1: i32; // in scope 0 at $DIR/aggregate.rs:+1:9: +1:10 - let mut _2: i32; // in scope 0 at $DIR/aggregate.rs:+1:13: +1:24 - let mut _3: (i32, i32, i32); // in scope 0 at $DIR/aggregate.rs:+1:13: +1:22 + let _1: u8; // in scope 0 at $DIR/aggregate.rs:+1:9: +1:10 + let mut _2: u8; // in scope 0 at $DIR/aggregate.rs:+1:13: +1:24 + let mut _3: (i32, u8, i32); // in scope 0 at $DIR/aggregate.rs:+1:13: +1:22 + let _4: (); // in scope 0 at $DIR/aggregate.rs:+2:5: +2:11 + let mut _5: u8; // in scope 0 at $DIR/aggregate.rs:+2:9: +2:10 scope 1 { debug x => _1; // in scope 1 at $DIR/aggregate.rs:+1:9: +1:10 } @@ -14,19 +16,29 @@ StorageLive(_1); // scope 0 at $DIR/aggregate.rs:+1:9: +1:10 StorageLive(_2); // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 StorageLive(_3); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 - Deinit(_3); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 - (_3.0: i32) = const 0_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 - (_3.1: i32) = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 - (_3.2: i32) = const 2_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 -- _2 = (_3.1: i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 -- _1 = Add(move _2, const 0_i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:28 -+ _2 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 -+ _1 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:28 + _3 = (const 0_i32, const 1_u8, const 2_i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 +- _2 = (_3.1: u8); // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 +- _1 = Add(move _2, const 0_u8); // scope 0 at $DIR/aggregate.rs:+1:13: +1:28 ++ _2 = const 1_u8; // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 ++ _1 = const 1_u8; // scope 0 at $DIR/aggregate.rs:+1:13: +1:28 StorageDead(_2); // scope 0 at $DIR/aggregate.rs:+1:27: +1:28 StorageDead(_3); // scope 0 at $DIR/aggregate.rs:+1:28: +1:29 - _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:11: +2:2 - StorageDead(_1); // scope 0 at $DIR/aggregate.rs:+2:1: +2:2 - return; // scope 0 at $DIR/aggregate.rs:+2:2: +2:2 + StorageLive(_4); // scope 1 at $DIR/aggregate.rs:+2:5: +2:11 + StorageLive(_5); // scope 1 at $DIR/aggregate.rs:+2:9: +2:10 +- _5 = _1; // scope 1 at $DIR/aggregate.rs:+2:9: +2:10 ++ _5 = const 1_u8; // scope 1 at $DIR/aggregate.rs:+2:9: +2:10 + _4 = foo(move _5) -> bb1; // scope 1 at $DIR/aggregate.rs:+2:5: +2:11 + // mir::Constant + // + span: $DIR/aggregate.rs:8:5: 8:8 + // + literal: Const { ty: fn(u8) {foo}, val: Value() } + } + + bb1: { + StorageDead(_5); // scope 1 at $DIR/aggregate.rs:+2:10: +2:11 + StorageDead(_4); // scope 1 at $DIR/aggregate.rs:+2:11: +2:12 + _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:11: +3:2 + StorageDead(_1); // scope 0 at $DIR/aggregate.rs:+3:1: +3:2 + return; // scope 0 at $DIR/aggregate.rs:+3:2: +3:2 } } diff --git a/tests/mir-opt/const_prop/aggregate.main.PreCodegen.after.mir b/tests/mir-opt/const_prop/aggregate.main.PreCodegen.after.mir index cfc9a72e3b22..4706af92cba9 100644 --- a/tests/mir-opt/const_prop/aggregate.main.PreCodegen.after.mir +++ b/tests/mir-opt/const_prop/aggregate.main.PreCodegen.after.mir @@ -2,9 +2,11 @@ fn main() -> () { let mut _0: (); // return place in scope 0 at $DIR/aggregate.rs:+0:11: +0:11 - let _1: i32; // in scope 0 at $DIR/aggregate.rs:+1:9: +1:10 - let mut _2: i32; // in scope 0 at $DIR/aggregate.rs:+1:13: +1:24 - let mut _3: (i32, i32, i32); // in scope 0 at $DIR/aggregate.rs:+1:13: +1:22 + let _1: u8; // in scope 0 at $DIR/aggregate.rs:+1:9: +1:10 + let mut _2: u8; // in scope 0 at $DIR/aggregate.rs:+1:13: +1:24 + let mut _3: (i32, u8, i32); // in scope 0 at $DIR/aggregate.rs:+1:13: +1:22 + let _4: (); // in scope 0 at $DIR/aggregate.rs:+2:5: +2:11 + let mut _5: u8; // in scope 0 at $DIR/aggregate.rs:+2:9: +2:10 scope 1 { debug x => _1; // in scope 1 at $DIR/aggregate.rs:+1:9: +1:10 } @@ -13,16 +15,25 @@ fn main() -> () { StorageLive(_1); // scope 0 at $DIR/aggregate.rs:+1:9: +1:10 StorageLive(_2); // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 StorageLive(_3); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 - Deinit(_3); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 - (_3.0: i32) = const 0_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 - (_3.1: i32) = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 - (_3.2: i32) = const 2_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 - _2 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 - _1 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:28 + _3 = (const 0_i32, const 1_u8, const 2_i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22 + _2 = const 1_u8; // scope 0 at $DIR/aggregate.rs:+1:13: +1:24 + _1 = const 1_u8; // scope 0 at $DIR/aggregate.rs:+1:13: +1:28 StorageDead(_2); // scope 0 at $DIR/aggregate.rs:+1:27: +1:28 StorageDead(_3); // scope 0 at $DIR/aggregate.rs:+1:28: +1:29 - _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:11: +2:2 - StorageDead(_1); // scope 0 at $DIR/aggregate.rs:+2:1: +2:2 - return; // scope 0 at $DIR/aggregate.rs:+2:2: +2:2 + StorageLive(_4); // scope 1 at $DIR/aggregate.rs:+2:5: +2:11 + StorageLive(_5); // scope 1 at $DIR/aggregate.rs:+2:9: +2:10 + _5 = const 1_u8; // scope 1 at $DIR/aggregate.rs:+2:9: +2:10 + _4 = foo(move _5) -> bb1; // scope 1 at $DIR/aggregate.rs:+2:5: +2:11 + // mir::Constant + // + span: $DIR/aggregate.rs:8:5: 8:8 + // + literal: Const { ty: fn(u8) {foo}, val: Value() } + } + + bb1: { + StorageDead(_5); // scope 1 at $DIR/aggregate.rs:+2:10: +2:11 + StorageDead(_4); // scope 1 at $DIR/aggregate.rs:+2:11: +2:12 + _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:11: +3:2 + StorageDead(_1); // scope 0 at $DIR/aggregate.rs:+3:1: +3:2 + return; // scope 0 at $DIR/aggregate.rs:+3:2: +3:2 } } diff --git a/tests/mir-opt/const_prop/aggregate.rs b/tests/mir-opt/const_prop/aggregate.rs index 6a3080384daf..aa123b7a8664 100644 --- a/tests/mir-opt/const_prop/aggregate.rs +++ b/tests/mir-opt/const_prop/aggregate.rs @@ -5,4 +5,13 @@ // EMIT_MIR aggregate.main.PreCodegen.after.mir fn main() { let x = (0, 1, 2).1 + 0; + foo(x); +} + +// EMIT_MIR aggregate.foo.ConstProp.diff +// EMIT_MIR aggregate.foo.PreCodegen.after.mir +fn foo(x: u8) { + // Verify that we still propagate if part of the aggregate is not known. + let first = (0, x).0 + 1; + let second = (x, 1).1 + 2; } diff --git a/tests/mir-opt/const_prop/bad_op_mod_by_zero.main.ConstProp.diff b/tests/mir-opt/const_prop/bad_op_mod_by_zero.main.ConstProp.diff index e085a88b2da8..ae9ffd519a14 100644 --- a/tests/mir-opt/const_prop/bad_op_mod_by_zero.main.ConstProp.diff +++ b/tests/mir-opt/const_prop/bad_op_mod_by_zero.main.ConstProp.diff @@ -18,7 +18,6 @@ } bb0: { - StorageLive(_1); // scope 0 at $DIR/bad_op_mod_by_zero.rs:+1:9: +1:10 _1 = const 0_i32; // scope 0 at $DIR/bad_op_mod_by_zero.rs:+1:13: +1:14 StorageLive(_2); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:9: +2:11 - _4 = Eq(_1, const 0_i32); // scope 1 at $DIR/bad_op_mod_by_zero.rs:+2:14: +2:19 diff --git a/tests/mir-opt/const_prop/discriminant.main.ConstProp.32bit.diff b/tests/mir-opt/const_prop/discriminant.main.ConstProp.32bit.diff index b4dccecc6726..b9a10704be0d 100644 --- a/tests/mir-opt/const_prop/discriminant.main.ConstProp.32bit.diff +++ b/tests/mir-opt/const_prop/discriminant.main.ConstProp.32bit.diff @@ -17,17 +17,20 @@ StorageLive(_1); // scope 0 at $DIR/discriminant.rs:+1:9: +1:10 StorageLive(_2); // scope 0 at $DIR/discriminant.rs:+1:13: +1:64 StorageLive(_3); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 - Deinit(_3); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 - ((_3 as Some).0: bool) = const true; // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 - discriminant(_3) = 1; // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 +- _3 = Option::::Some(const true); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 - _4 = discriminant(_3); // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 - switchInt(move _4) -> [1: bb1, otherwise: bb3]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 ++ _3 = const Option::::Some(true); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 ++ // mir::Constant ++ // + span: $DIR/discriminant.rs:12:34: 12:44 ++ // + literal: Const { ty: Option, val: Value(Scalar(0x01)) } + _4 = const 1_isize; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 + switchInt(const 1_isize) -> [1: bb1, otherwise: bb3]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 } bb1: { - switchInt(((_3 as Some).0: bool)) -> [0: bb3, otherwise: bb2]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 +- switchInt(((_3 as Some).0: bool)) -> [0: bb3, otherwise: bb2]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 ++ switchInt(const true) -> [0: bb3, otherwise: bb2]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 } bb2: { diff --git a/tests/mir-opt/const_prop/discriminant.main.ConstProp.64bit.diff b/tests/mir-opt/const_prop/discriminant.main.ConstProp.64bit.diff index b4dccecc6726..b9a10704be0d 100644 --- a/tests/mir-opt/const_prop/discriminant.main.ConstProp.64bit.diff +++ b/tests/mir-opt/const_prop/discriminant.main.ConstProp.64bit.diff @@ -17,17 +17,20 @@ StorageLive(_1); // scope 0 at $DIR/discriminant.rs:+1:9: +1:10 StorageLive(_2); // scope 0 at $DIR/discriminant.rs:+1:13: +1:64 StorageLive(_3); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 - Deinit(_3); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 - ((_3 as Some).0: bool) = const true; // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 - discriminant(_3) = 1; // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 +- _3 = Option::::Some(const true); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 - _4 = discriminant(_3); // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 - switchInt(move _4) -> [1: bb1, otherwise: bb3]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 ++ _3 = const Option::::Some(true); // scope 2 at $DIR/discriminant.rs:+1:34: +1:44 ++ // mir::Constant ++ // + span: $DIR/discriminant.rs:12:34: 12:44 ++ // + literal: Const { ty: Option, val: Value(Scalar(0x01)) } + _4 = const 1_isize; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 + switchInt(const 1_isize) -> [1: bb1, otherwise: bb3]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 } bb1: { - switchInt(((_3 as Some).0: bool)) -> [0: bb3, otherwise: bb2]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 +- switchInt(((_3 as Some).0: bool)) -> [0: bb3, otherwise: bb2]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 ++ switchInt(const true) -> [0: bb3, otherwise: bb2]; // scope 2 at $DIR/discriminant.rs:+1:21: +1:31 } bb2: { diff --git a/tests/mir-opt/const_prop/invalid_constant.main.ConstProp.diff b/tests/mir-opt/const_prop/invalid_constant.main.ConstProp.diff index 6c4757c1a810..4f056dd85e3f 100644 --- a/tests/mir-opt/const_prop/invalid_constant.main.ConstProp.diff +++ b/tests/mir-opt/const_prop/invalid_constant.main.ConstProp.diff @@ -32,16 +32,14 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/invalid_constant.rs:+6:9: +6:22 StorageLive(_2); // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:63 - Deinit(_2); // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:63 - (_2.0: u32) = const 1114113_u32; // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:63 + _2 = InvalidChar { int: const 1114113_u32 }; // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:63 - _1 = (_2.1: char); // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:67 + _1 = const {transmute(0x00110001): char}; // scope 2 at $DIR/invalid_constant.rs:+6:34: +6:67 StorageDead(_2); // scope 0 at $DIR/invalid_constant.rs:+6:69: +6:70 StorageLive(_3); // scope 1 at $DIR/invalid_constant.rs:+13:9: +13:21 StorageLive(_4); // scope 1 at $DIR/invalid_constant.rs:+13:25: +13:59 StorageLive(_5); // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:55 - Deinit(_5); // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:55 - (_5.0: u32) = const 4_u32; // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:55 + _5 = InvalidTag { int: const 4_u32 }; // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:55 - _4 = (_5.1: E); // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:57 - _3 = [move _4]; // scope 1 at $DIR/invalid_constant.rs:+13:24: +13:60 + _4 = const Scalar(0x00000004): E; // scope 4 at $DIR/invalid_constant.rs:+13:34: +13:57 diff --git a/tests/mir-opt/const_prop/issue_66971.main.ConstProp.diff b/tests/mir-opt/const_prop/issue_66971.main.ConstProp.diff index 488e772d0ea8..964dd3080749 100644 --- a/tests/mir-opt/const_prop/issue_66971.main.ConstProp.diff +++ b/tests/mir-opt/const_prop/issue_66971.main.ConstProp.diff @@ -5,13 +5,14 @@ let mut _0: (); // return place in scope 0 at $DIR/issue_66971.rs:+0:11: +0:11 let _1: (); // in scope 0 at $DIR/issue_66971.rs:+1:5: +1:23 let mut _2: ((), u8, u8); // in scope 0 at $DIR/issue_66971.rs:+1:12: +1:22 + let mut _3: (); // in scope 0 at $DIR/issue_66971.rs:+1:13: +1:15 bb0: { StorageLive(_1); // scope 0 at $DIR/issue_66971.rs:+1:5: +1:23 StorageLive(_2); // scope 0 at $DIR/issue_66971.rs:+1:12: +1:22 - Deinit(_2); // scope 0 at $DIR/issue_66971.rs:+1:12: +1:22 - (_2.1: u8) = const 0_u8; // scope 0 at $DIR/issue_66971.rs:+1:12: +1:22 - (_2.2: u8) = const 0_u8; // scope 0 at $DIR/issue_66971.rs:+1:12: +1:22 + StorageLive(_3); // scope 0 at $DIR/issue_66971.rs:+1:13: +1:15 + _2 = (move _3, const 0_u8, const 0_u8); // scope 0 at $DIR/issue_66971.rs:+1:12: +1:22 + StorageDead(_3); // scope 0 at $DIR/issue_66971.rs:+1:21: +1:22 _1 = encode(move _2) -> bb1; // scope 0 at $DIR/issue_66971.rs:+1:5: +1:23 // mir::Constant // + span: $DIR/issue_66971.rs:17:5: 17:11 diff --git a/tests/mir-opt/const_prop/issue_67019.main.ConstProp.diff b/tests/mir-opt/const_prop/issue_67019.main.ConstProp.diff index cd53048597b8..a631cb310904 100644 --- a/tests/mir-opt/const_prop/issue_67019.main.ConstProp.diff +++ b/tests/mir-opt/const_prop/issue_67019.main.ConstProp.diff @@ -11,12 +11,9 @@ StorageLive(_1); // scope 0 at $DIR/issue_67019.rs:+1:5: +1:20 StorageLive(_2); // scope 0 at $DIR/issue_67019.rs:+1:10: +1:19 StorageLive(_3); // scope 0 at $DIR/issue_67019.rs:+1:11: +1:17 - Deinit(_3); // scope 0 at $DIR/issue_67019.rs:+1:11: +1:17 - (_3.0: u8) = const 1_u8; // scope 0 at $DIR/issue_67019.rs:+1:11: +1:17 - (_3.1: u8) = const 2_u8; // scope 0 at $DIR/issue_67019.rs:+1:11: +1:17 - Deinit(_2); // scope 0 at $DIR/issue_67019.rs:+1:10: +1:19 -- (_2.0: (u8, u8)) = move _3; // scope 0 at $DIR/issue_67019.rs:+1:10: +1:19 -+ (_2.0: (u8, u8)) = const (1_u8, 2_u8); // scope 0 at $DIR/issue_67019.rs:+1:10: +1:19 +- _3 = (const 1_u8, const 2_u8); // scope 0 at $DIR/issue_67019.rs:+1:11: +1:17 ++ _3 = const (1_u8, 2_u8); // scope 0 at $DIR/issue_67019.rs:+1:11: +1:17 + _2 = (move _3,); // scope 0 at $DIR/issue_67019.rs:+1:10: +1:19 StorageDead(_3); // scope 0 at $DIR/issue_67019.rs:+1:18: +1:19 _1 = test(move _2) -> bb1; // scope 0 at $DIR/issue_67019.rs:+1:5: +1:20 // mir::Constant diff --git a/tests/mir-opt/const_prop/mutable_variable_aggregate.main.ConstProp.diff b/tests/mir-opt/const_prop/mutable_variable_aggregate.main.ConstProp.diff index f6bf522065ba..d088c4f662b7 100644 --- a/tests/mir-opt/const_prop/mutable_variable_aggregate.main.ConstProp.diff +++ b/tests/mir-opt/const_prop/mutable_variable_aggregate.main.ConstProp.diff @@ -3,26 +3,27 @@ fn main() -> () { let mut _0: (); // return place in scope 0 at $DIR/mutable_variable_aggregate.rs:+0:11: +0:11 - let mut _1: (i32, i32); // in scope 0 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14 + let mut _3: i32; // in scope 0 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14 + let mut _4: i32; // in scope 0 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14 scope 1 { - debug x => _1; // in scope 1 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14 - let _2: (i32, i32); // in scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10 + debug x => (i32, i32){ .0 => _3, .1 => _4, }; // in scope 1 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14 + let _1: i32; // in scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10 + let _2: i32; // in scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10 scope 2 { - debug y => _2; // in scope 2 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10 + debug y => (i32, i32){ .0 => _3, .1 => _2, }; // in scope 2 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10 } } bb0: { - StorageLive(_1); // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14 - Deinit(_1); // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:17: +1:25 - (_1.0: i32) = const 42_i32; // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:17: +1:25 - (_1.1: i32) = const 43_i32; // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:17: +1:25 - (_1.1: i32) = const 99_i32; // scope 1 at $DIR/mutable_variable_aggregate.rs:+2:5: +2:13 + StorageLive(_4); // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:9: +1:14 + _3 = const 42_i32; // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:17: +1:25 + _4 = const 43_i32; // scope 0 at $DIR/mutable_variable_aggregate.rs:+1:17: +1:25 + _4 = const 99_i32; // scope 1 at $DIR/mutable_variable_aggregate.rs:+2:5: +2:13 StorageLive(_2); // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:9: +3:10 -- _2 = _1; // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14 -+ _2 = const (42_i32, 99_i32); // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14 +- _2 = _4; // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14 ++ _2 = const 99_i32; // scope 1 at $DIR/mutable_variable_aggregate.rs:+3:13: +3:14 StorageDead(_2); // scope 1 at $DIR/mutable_variable_aggregate.rs:+4:1: +4:2 - StorageDead(_1); // scope 0 at $DIR/mutable_variable_aggregate.rs:+4:1: +4:2 + StorageDead(_4); // scope 0 at $DIR/mutable_variable_aggregate.rs:+4:1: +4:2 return; // scope 0 at $DIR/mutable_variable_aggregate.rs:+4:2: +4:2 } } diff --git a/tests/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.main.ConstProp.diff b/tests/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.main.ConstProp.diff index 213a70227d87..134f0c080bf8 100644 --- a/tests/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.main.ConstProp.diff +++ b/tests/mir-opt/const_prop/mutable_variable_aggregate_mut_ref.main.ConstProp.diff @@ -9,24 +9,26 @@ let _2: &mut (i32, i32); // in scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:9: +2:10 scope 2 { debug z => _2; // in scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:9: +2:10 - let _3: (i32, i32); // in scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10 + let _3: i32; // in scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10 + let _4: i32; // in scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10 scope 3 { - debug y => _3; // in scope 3 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10 + debug y => (i32, i32){ .0 => _3, .1 => _4, }; // in scope 3 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10 } } } bb0: { StorageLive(_1); // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:9: +1:14 - Deinit(_1); // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:17: +1:25 - (_1.0: i32) = const 42_i32; // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:17: +1:25 - (_1.1: i32) = const 43_i32; // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:17: +1:25 + _1 = (const 42_i32, const 43_i32); // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+1:17: +1:25 StorageLive(_2); // scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:9: +2:10 _2 = &mut _1; // scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+2:13: +2:19 ((*_2).1: i32) = const 99_i32; // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+3:5: +3:13 StorageLive(_3); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10 - _3 = _1; // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:13: +4:14 + StorageLive(_4); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:9: +4:10 + _3 = (_1.0: i32); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:13: +4:14 + _4 = (_1.1: i32); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+4:13: +4:14 StorageDead(_3); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2 + StorageDead(_4); // scope 2 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2 StorageDead(_2); // scope 1 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2 StorageDead(_1); // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:1: +5:2 return; // scope 0 at $DIR/mutable_variable_aggregate_mut_ref.rs:+5:2: +5:2 diff --git a/tests/mir-opt/const_prop/mutable_variable_unprop_assign.main.ConstProp.diff b/tests/mir-opt/const_prop/mutable_variable_unprop_assign.main.ConstProp.diff index c3f77b960a2d..4010dd6c6d0d 100644 --- a/tests/mir-opt/const_prop/mutable_variable_unprop_assign.main.ConstProp.diff +++ b/tests/mir-opt/const_prop/mutable_variable_unprop_assign.main.ConstProp.diff @@ -16,7 +16,7 @@ debug y => _3; // in scope 3 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10 let _4: i32; // in scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10 scope 4 { - debug z => _4; // in scope 4 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10 + debug z => _5; // in scope 4 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10 } } } @@ -31,10 +31,7 @@ } bb1: { - StorageLive(_5); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14 StorageLive(_6); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:9: +2:14 - Deinit(_5); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35 - Deinit(_6); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35 _5 = const 1_i32; // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35 _6 = const 2_i32; // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+2:29: +2:35 StorageLive(_2); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12 @@ -43,12 +40,7 @@ StorageDead(_2); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+3:11: +3:12 StorageLive(_3); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:9: +4:10 _3 = _6; // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+4:13: +4:16 - StorageLive(_4); // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:9: +5:10 -- _4 = _5; // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:13: +5:16 -+ _4 = const 1_i32; // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+5:13: +5:16 - StorageDead(_4); // scope 3 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2 StorageDead(_3); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2 - StorageDead(_5); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2 StorageDead(_6); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2 StorageDead(_1); // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+6:1: +6:2 return; // scope 0 at $DIR/mutable_variable_unprop_assign.rs:+6:2: +6:2 diff --git a/tests/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.32bit.diff b/tests/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.32bit.diff index 7c7aeac4c451..691aa01a5640 100644 --- a/tests/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.32bit.diff +++ b/tests/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.32bit.diff @@ -17,7 +17,7 @@ debug y => _3; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 let _8: u32; // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 scope 3 { - debug z => _8; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + debug z => _9; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 } } } @@ -50,14 +50,7 @@ + _3 = const 3_i32; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 StorageDead(_5); // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35 StorageDead(_4); // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35 - StorageLive(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 - StorageLive(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 - Deinit(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 _9 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -- _8 = _9; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 -+ _8 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 - StorageDead(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 - StorageDead(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_3); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 diff --git a/tests/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.64bit.diff b/tests/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.64bit.diff index 7c7aeac4c451..691aa01a5640 100644 --- a/tests/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.64bit.diff +++ b/tests/mir-opt/const_prop/optimizes_into_variable.main.ConstProp.64bit.diff @@ -17,7 +17,7 @@ debug y => _3; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 let _8: u32; // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 scope 3 { - debug z => _8; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 + debug z => _9; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 } } } @@ -50,14 +50,7 @@ + _3 = const 3_i32; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34 StorageDead(_5); // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35 StorageDead(_4); // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35 - StorageLive(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 - StorageLive(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 - Deinit(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 _9 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -- _8 = _9; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 -+ _8 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 - StorageDead(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 - StorageDead(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_3); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 diff --git a/tests/mir-opt/const_prop/optimizes_into_variable.main.PreCodegen.after.32bit.mir b/tests/mir-opt/const_prop/optimizes_into_variable.main.PreCodegen.after.32bit.mir index 9db87cfc879b..81cfd22db6c5 100644 --- a/tests/mir-opt/const_prop/optimizes_into_variable.main.PreCodegen.after.32bit.mir +++ b/tests/mir-opt/const_prop/optimizes_into_variable.main.PreCodegen.after.32bit.mir @@ -3,12 +3,12 @@ fn main() -> () { let mut _0: (); // return place in scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +0:11 let _1: i32; // in scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + let mut _3: u32; // in scope 0 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 scope 1 { debug x => _1; // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 let _2: i32; // in scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 scope 2 { debug y => _2; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 - let _3: u32; // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 scope 3 { debug z => _3; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 } @@ -18,8 +18,6 @@ fn main() -> () { bb0: { StorageLive(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 StorageLive(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 - StorageLive(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 - StorageDead(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 diff --git a/tests/mir-opt/const_prop/optimizes_into_variable.main.PreCodegen.after.64bit.mir b/tests/mir-opt/const_prop/optimizes_into_variable.main.PreCodegen.after.64bit.mir index 9db87cfc879b..81cfd22db6c5 100644 --- a/tests/mir-opt/const_prop/optimizes_into_variable.main.PreCodegen.after.64bit.mir +++ b/tests/mir-opt/const_prop/optimizes_into_variable.main.PreCodegen.after.64bit.mir @@ -3,12 +3,12 @@ fn main() -> () { let mut _0: (); // return place in scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +0:11 let _1: i32; // in scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + let mut _3: u32; // in scope 0 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 scope 1 { debug x => _1; // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 let _2: i32; // in scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 scope 2 { debug y => _2; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 - let _3: u32; // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 scope 3 { debug z => _3; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 } @@ -18,8 +18,6 @@ fn main() -> () { bb0: { StorageLive(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 StorageLive(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 - StorageLive(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 - StorageDead(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 diff --git a/tests/mir-opt/const_prop/optimizes_into_variable.main.ScalarReplacementOfAggregates.32bit.diff b/tests/mir-opt/const_prop/optimizes_into_variable.main.ScalarReplacementOfAggregates.32bit.diff index 3f9f3b2eac71..98cd020dade4 100644 --- a/tests/mir-opt/const_prop/optimizes_into_variable.main.ScalarReplacementOfAggregates.32bit.diff +++ b/tests/mir-opt/const_prop/optimizes_into_variable.main.ScalarReplacementOfAggregates.32bit.diff @@ -48,20 +48,19 @@ StorageDead(_4); // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35 StorageLive(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 - StorageLive(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -- Deinit(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -- (_9.0: u32) = const 12_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -- (_9.1: u32) = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 +- _9 = Point { x: const 12_u32, y: const 42_u32 }; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 - _8 = (_9.1: u32); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 - StorageDead(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 + StorageLive(_10); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + StorageLive(_11); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -+ Deinit(_10); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -+ Deinit(_11); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 ++ nop; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + _10 = const 12_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + _11 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 ++ nop; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + _8 = _11; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 + StorageDead(_10); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 + StorageDead(_11); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 ++ nop; // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 nop; // scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +4:2 StorageDead(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_3); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 diff --git a/tests/mir-opt/const_prop/optimizes_into_variable.main.ScalarReplacementOfAggregates.64bit.diff b/tests/mir-opt/const_prop/optimizes_into_variable.main.ScalarReplacementOfAggregates.64bit.diff index 3f9f3b2eac71..98cd020dade4 100644 --- a/tests/mir-opt/const_prop/optimizes_into_variable.main.ScalarReplacementOfAggregates.64bit.diff +++ b/tests/mir-opt/const_prop/optimizes_into_variable.main.ScalarReplacementOfAggregates.64bit.diff @@ -48,20 +48,19 @@ StorageDead(_4); // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35 StorageLive(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 - StorageLive(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -- Deinit(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -- (_9.0: u32) = const 12_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -- (_9.1: u32) = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 +- _9 = Point { x: const 12_u32, y: const 42_u32 }; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 - _8 = (_9.1: u32); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 - StorageDead(_9); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 + StorageLive(_10); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + StorageLive(_11); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -+ Deinit(_10); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 -+ Deinit(_11); // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 ++ nop; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + _10 = const 12_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + _11 = const 42_u32; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 ++ nop; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 + _8 = _11; // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:38 + StorageDead(_10); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 + StorageDead(_11); // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 ++ nop; // scope 2 at $DIR/optimizes_into_variable.rs:+3:38: +3:39 nop; // scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +4:2 StorageDead(_8); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_3); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 diff --git a/tests/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals-final.after.32bit.mir b/tests/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals-final.after.32bit.mir index d926b9df7331..002e914e8fa1 100644 --- a/tests/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals-final.after.32bit.mir +++ b/tests/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals-final.after.32bit.mir @@ -3,12 +3,12 @@ fn main() -> () { let mut _0: (); // return place in scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +0:11 let _1: i32; // in scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + let mut _3: u32; // in scope 0 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 scope 1 { debug x => _1; // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 let _2: i32; // in scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 scope 2 { debug y => _2; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 - let _3: u32; // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 scope 3 { debug z => _3; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 } @@ -18,8 +18,6 @@ fn main() -> () { bb0: { StorageLive(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 StorageLive(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 - StorageLive(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 - StorageDead(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 diff --git a/tests/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals-final.after.64bit.mir b/tests/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals-final.after.64bit.mir index d926b9df7331..002e914e8fa1 100644 --- a/tests/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals-final.after.64bit.mir +++ b/tests/mir-opt/const_prop/optimizes_into_variable.main.SimplifyLocals-final.after.64bit.mir @@ -3,12 +3,12 @@ fn main() -> () { let mut _0: (); // return place in scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +0:11 let _1: i32; // in scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 + let mut _3: u32; // in scope 0 at $DIR/optimizes_into_variable.rs:+3:13: +3:36 scope 1 { debug x => _1; // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 let _2: i32; // in scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 scope 2 { debug y => _2; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 - let _3: u32; // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 scope 3 { debug z => _3; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 } @@ -18,8 +18,6 @@ fn main() -> () { bb0: { StorageLive(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 StorageLive(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 - StorageLive(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 - StorageDead(_3); // scope 2 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_2); // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 StorageDead(_1); // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2 return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 diff --git a/tests/mir-opt/const_prop/scalar_literal_propagation.main.ConstProp.diff b/tests/mir-opt/const_prop/scalar_literal_propagation.main.ConstProp.diff index e3f5b120a323..22f710387db7 100644 --- a/tests/mir-opt/const_prop/scalar_literal_propagation.main.ConstProp.diff +++ b/tests/mir-opt/const_prop/scalar_literal_propagation.main.ConstProp.diff @@ -11,7 +11,6 @@ } bb0: { - StorageLive(_1); // scope 0 at $DIR/scalar_literal_propagation.rs:+1:9: +1:10 _1 = const 1_u32; // scope 0 at $DIR/scalar_literal_propagation.rs:+1:13: +1:14 StorageLive(_2); // scope 1 at $DIR/scalar_literal_propagation.rs:+2:5: +2:15 - _2 = consume(_1) -> bb1; // scope 1 at $DIR/scalar_literal_propagation.rs:+2:5: +2:15 diff --git a/tests/mir-opt/const_prop/tuple_literal_propagation.main.ConstProp.diff b/tests/mir-opt/const_prop/tuple_literal_propagation.main.ConstProp.diff index e4c92b617c6a..270a1ccf560f 100644 --- a/tests/mir-opt/const_prop/tuple_literal_propagation.main.ConstProp.diff +++ b/tests/mir-opt/const_prop/tuple_literal_propagation.main.ConstProp.diff @@ -11,24 +11,17 @@ } bb0: { - StorageLive(_1); // scope 0 at $DIR/tuple_literal_propagation.rs:+1:9: +1:10 - Deinit(_1); // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19 - (_1.0: u32) = const 1_u32; // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19 - (_1.1: u32) = const 2_u32; // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19 +- _1 = (const 1_u32, const 2_u32); // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19 ++ _1 = const (1_u32, 2_u32); // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19 StorageLive(_2); // scope 1 at $DIR/tuple_literal_propagation.rs:+3:5: +3:15 - StorageLive(_3); // scope 1 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14 -- _3 = _1; // scope 1 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14 -+ _3 = const (1_u32, 2_u32); // scope 1 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14 - _2 = consume(move _3) -> bb1; // scope 1 at $DIR/tuple_literal_propagation.rs:+3:5: +3:15 + _2 = consume(_1) -> bb1; // scope 1 at $DIR/tuple_literal_propagation.rs:+3:5: +3:15 // mir::Constant // + span: $DIR/tuple_literal_propagation.rs:5:5: 5:12 // + literal: Const { ty: fn((u32, u32)) {consume}, val: Value() } } bb1: { - StorageDead(_3); // scope 1 at $DIR/tuple_literal_propagation.rs:+3:14: +3:15 StorageDead(_2); // scope 1 at $DIR/tuple_literal_propagation.rs:+3:15: +3:16 - StorageDead(_1); // scope 0 at $DIR/tuple_literal_propagation.rs:+4:1: +4:2 return; // scope 0 at $DIR/tuple_literal_propagation.rs:+4:2: +4:2 } } diff --git a/tests/mir-opt/const_prop_miscompile.bar.ConstProp.diff b/tests/mir-opt/const_prop_miscompile.bar.ConstProp.diff index b6b542fb7943..def9fc6428fb 100644 --- a/tests/mir-opt/const_prop_miscompile.bar.ConstProp.diff +++ b/tests/mir-opt/const_prop_miscompile.bar.ConstProp.diff @@ -19,8 +19,8 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/const_prop_miscompile.rs:+1:9: +1:14 - Deinit(_1); // scope 0 at $DIR/const_prop_miscompile.rs:+1:17: +1:21 - (_1.0: i32) = const 1_i32; // scope 0 at $DIR/const_prop_miscompile.rs:+1:17: +1:21 +- _1 = (const 1_i32,); // scope 0 at $DIR/const_prop_miscompile.rs:+1:17: +1:21 ++ _1 = const (1_i32,); // scope 0 at $DIR/const_prop_miscompile.rs:+1:17: +1:21 StorageLive(_2); // scope 1 at $DIR/const_prop_miscompile.rs:+2:5: +4:6 StorageLive(_3); // scope 2 at $DIR/const_prop_miscompile.rs:+3:10: +3:22 _3 = &raw mut (_1.0: i32); // scope 2 at $DIR/const_prop_miscompile.rs:+3:10: +3:22 diff --git a/tests/mir-opt/const_prop_miscompile.foo.ConstProp.diff b/tests/mir-opt/const_prop_miscompile.foo.ConstProp.diff index e43735fd9e14..b54c10a140f2 100644 --- a/tests/mir-opt/const_prop_miscompile.foo.ConstProp.diff +++ b/tests/mir-opt/const_prop_miscompile.foo.ConstProp.diff @@ -16,8 +16,8 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/const_prop_miscompile.rs:+1:9: +1:14 - Deinit(_1); // scope 0 at $DIR/const_prop_miscompile.rs:+1:17: +1:21 - (_1.0: i32) = const 1_i32; // scope 0 at $DIR/const_prop_miscompile.rs:+1:17: +1:21 +- _1 = (const 1_i32,); // scope 0 at $DIR/const_prop_miscompile.rs:+1:17: +1:21 ++ _1 = const (1_i32,); // scope 0 at $DIR/const_prop_miscompile.rs:+1:17: +1:21 StorageLive(_2); // scope 1 at $DIR/const_prop_miscompile.rs:+2:6: +2:14 _2 = &mut (_1.0: i32); // scope 1 at $DIR/const_prop_miscompile.rs:+2:6: +2:14 (*_2) = const 5_i32; // scope 1 at $DIR/const_prop_miscompile.rs:+2:5: +2:18 diff --git a/tests/mir-opt/copy-prop/cycle.main.CopyProp.diff b/tests/mir-opt/copy-prop/cycle.main.CopyProp.diff index bc5083e1ad01..3e61869e82f1 100644 --- a/tests/mir-opt/copy-prop/cycle.main.CopyProp.diff +++ b/tests/mir-opt/copy-prop/cycle.main.CopyProp.diff @@ -29,7 +29,7 @@ } bb1: { - StorageLive(_2); // scope 1 at $DIR/cycle.rs:+2:9: +2:10 +- StorageLive(_2); // scope 1 at $DIR/cycle.rs:+2:9: +2:10 _2 = _1; // scope 1 at $DIR/cycle.rs:+2:13: +2:14 - StorageLive(_3); // scope 2 at $DIR/cycle.rs:+3:9: +3:10 - _3 = _2; // scope 2 at $DIR/cycle.rs:+3:13: +3:14 diff --git a/tests/mir-opt/copy-prop/dead_stores_79191.f.CopyProp.after.mir b/tests/mir-opt/copy-prop/dead_stores_79191.f.CopyProp.after.mir index 918817da56ce..d48b04e2de27 100644 --- a/tests/mir-opt/copy-prop/dead_stores_79191.f.CopyProp.after.mir +++ b/tests/mir-opt/copy-prop/dead_stores_79191.f.CopyProp.after.mir @@ -11,7 +11,6 @@ fn f(_1: usize) -> usize { } bb0: { - StorageLive(_2); // scope 0 at $DIR/dead_stores_79191.rs:+1:9: +1:10 _2 = _1; // scope 0 at $DIR/dead_stores_79191.rs:+1:13: +1:14 _1 = const 5_usize; // scope 1 at $DIR/dead_stores_79191.rs:+2:5: +2:10 _1 = _2; // scope 1 at $DIR/dead_stores_79191.rs:+3:5: +3:10 diff --git a/tests/mir-opt/copy-prop/dead_stores_better.f.CopyProp.after.mir b/tests/mir-opt/copy-prop/dead_stores_better.f.CopyProp.after.mir index cf21fadd4379..727791f50a4e 100644 --- a/tests/mir-opt/copy-prop/dead_stores_better.f.CopyProp.after.mir +++ b/tests/mir-opt/copy-prop/dead_stores_better.f.CopyProp.after.mir @@ -11,7 +11,6 @@ fn f(_1: usize) -> usize { } bb0: { - StorageLive(_2); // scope 0 at $DIR/dead_stores_better.rs:+1:9: +1:10 _2 = _1; // scope 0 at $DIR/dead_stores_better.rs:+1:13: +1:14 _1 = const 5_usize; // scope 1 at $DIR/dead_stores_better.rs:+2:5: +2:10 _1 = _2; // scope 1 at $DIR/dead_stores_better.rs:+3:5: +3:10 diff --git a/tests/mir-opt/copy-prop/issue_107511.main.CopyProp.diff b/tests/mir-opt/copy-prop/issue_107511.main.CopyProp.diff new file mode 100644 index 000000000000..97d0a01e00bc --- /dev/null +++ b/tests/mir-opt/copy-prop/issue_107511.main.CopyProp.diff @@ -0,0 +1,138 @@ +- // MIR for `main` before CopyProp ++ // MIR for `main` after CopyProp + + fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/issue_107511.rs:+0:11: +0:11 + let mut _1: i32; // in scope 0 at $DIR/issue_107511.rs:+1:9: +1:16 + let mut _3: std::ops::Range; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24 + let mut _4: std::ops::Range; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24 + let mut _5: usize; // in scope 0 at $DIR/issue_107511.rs:+6:17: +6:24 + let mut _6: &[i32]; // in scope 0 at $DIR/issue_107511.rs:+6:17: +6:24 + let mut _7: &[i32; 4]; // in scope 0 at $DIR/issue_107511.rs:+6:17: +6:24 + let mut _9: (); // in scope 0 at $DIR/issue_107511.rs:+0:1: +9:2 + let _10: (); // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24 + let mut _11: std::option::Option; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24 + let mut _12: &mut std::ops::Range; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24 + let mut _13: &mut std::ops::Range; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24 + let mut _14: isize; // in scope 0 at $DIR/issue_107511.rs:+6:5: +8:6 + let mut _15: !; // in scope 0 at $DIR/issue_107511.rs:+6:5: +8:6 + let mut _17: i32; // in scope 0 at $DIR/issue_107511.rs:+7:16: +7:20 + let _18: usize; // in scope 0 at $DIR/issue_107511.rs:+7:18: +7:19 + let mut _19: usize; // in scope 0 at $DIR/issue_107511.rs:+7:16: +7:20 + let mut _20: bool; // in scope 0 at $DIR/issue_107511.rs:+7:16: +7:20 + scope 1 { + debug sum => _1; // in scope 1 at $DIR/issue_107511.rs:+1:9: +1:16 + let _2: [i32; 4]; // in scope 1 at $DIR/issue_107511.rs:+2:9: +2:10 + scope 2 { + debug a => _2; // in scope 2 at $DIR/issue_107511.rs:+2:9: +2:10 + let mut _8: std::ops::Range; // in scope 2 at $DIR/issue_107511.rs:+6:14: +6:24 + scope 3 { + debug iter => _8; // in scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + let _16: usize; // in scope 3 at $DIR/issue_107511.rs:+6:9: +6:10 + scope 4 { + debug i => _16; // in scope 4 at $DIR/issue_107511.rs:+6:9: +6:10 + } + } + } + } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/issue_107511.rs:+1:9: +1:16 + _1 = const 0_i32; // scope 0 at $DIR/issue_107511.rs:+1:19: +1:20 + StorageLive(_2); // scope 1 at $DIR/issue_107511.rs:+2:9: +2:10 + _2 = [const 0_i32, const 10_i32, const 20_i32, const 30_i32]; // scope 1 at $DIR/issue_107511.rs:+2:13: +2:28 + StorageLive(_3); // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24 + StorageLive(_4); // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24 + StorageLive(_5); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24 + StorageLive(_6); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24 + StorageLive(_7); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24 + _7 = &_2; // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24 + _6 = move _7 as &[i32] (Pointer(Unsize)); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24 + StorageDead(_7); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:18 + _5 = core::slice::::len(move _6) -> bb1; // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24 + // mir::Constant + // + span: $DIR/issue_107511.rs:10:19: 10:22 + // + literal: Const { ty: for<'a> fn(&'a [i32]) -> usize {core::slice::::len}, val: Value() } + } + + bb1: { + StorageDead(_6); // scope 2 at $DIR/issue_107511.rs:+6:23: +6:24 + _4 = std::ops::Range:: { start: const 0_usize, end: move _5 }; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24 + StorageDead(_5); // scope 2 at $DIR/issue_107511.rs:+6:23: +6:24 + _3 = as IntoIterator>::into_iter(move _4) -> bb2; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24 + // mir::Constant + // + span: $DIR/issue_107511.rs:10:14: 10:24 + // + literal: Const { ty: fn(std::ops::Range) -> as IntoIterator>::IntoIter { as IntoIterator>::into_iter}, val: Value() } + } + + bb2: { + StorageDead(_4); // scope 2 at $DIR/issue_107511.rs:+6:23: +6:24 + StorageLive(_8); // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24 + _8 = move _3; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24 + goto -> bb3; // scope 3 at $DIR/issue_107511.rs:+6:5: +8:6 + } + + bb3: { +- StorageLive(_10); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + StorageLive(_11); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + StorageLive(_12); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + StorageLive(_13); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + _13 = &mut _8; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + _12 = &mut (*_13); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + _11 = as Iterator>::next(move _12) -> bb4; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + // mir::Constant + // + span: $DIR/issue_107511.rs:10:14: 10:24 + // + literal: Const { ty: for<'a> fn(&'a mut std::ops::Range) -> Option< as Iterator>::Item> { as Iterator>::next}, val: Value() } + } + + bb4: { + StorageDead(_12); // scope 3 at $DIR/issue_107511.rs:+6:23: +6:24 + _14 = discriminant(_11); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + switchInt(move _14) -> [0: bb7, 1: bb5, otherwise: bb6]; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + } + + bb5: { +- StorageLive(_16); // scope 3 at $DIR/issue_107511.rs:+6:9: +6:10 + _16 = ((_11 as Some).0: usize); // scope 3 at $DIR/issue_107511.rs:+6:9: +6:10 + StorageLive(_17); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20 +- StorageLive(_18); // scope 4 at $DIR/issue_107511.rs:+7:18: +7:19 +- _18 = _16; // scope 4 at $DIR/issue_107511.rs:+7:18: +7:19 + _19 = Len(_2); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20 +- _20 = Lt(_18, _19); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20 +- assert(move _20, "index out of bounds: the length is {} but the index is {}", move _19, _18) -> bb8; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20 ++ _20 = Lt(_16, _19); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20 ++ assert(move _20, "index out of bounds: the length is {} but the index is {}", move _19, _16) -> bb8; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20 + } + + bb6: { + unreachable; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24 + } + + bb7: { + _0 = const (); // scope 3 at $DIR/issue_107511.rs:+6:5: +8:6 + StorageDead(_13); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6 + StorageDead(_11); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6 +- StorageDead(_10); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6 + StorageDead(_8); // scope 2 at $DIR/issue_107511.rs:+8:5: +8:6 + StorageDead(_3); // scope 2 at $DIR/issue_107511.rs:+8:5: +8:6 + StorageDead(_2); // scope 1 at $DIR/issue_107511.rs:+9:1: +9:2 + StorageDead(_1); // scope 0 at $DIR/issue_107511.rs:+9:1: +9:2 + return; // scope 0 at $DIR/issue_107511.rs:+9:2: +9:2 + } + + bb8: { +- _17 = _2[_18]; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20 ++ _17 = _2[_16]; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20 + _1 = Add(_1, move _17); // scope 4 at $DIR/issue_107511.rs:+7:9: +7:20 + StorageDead(_17); // scope 4 at $DIR/issue_107511.rs:+7:19: +7:20 +- StorageDead(_18); // scope 4 at $DIR/issue_107511.rs:+7:20: +7:21 +- _10 = const (); // scope 4 at $DIR/issue_107511.rs:+6:25: +8:6 +- StorageDead(_16); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6 + StorageDead(_13); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6 + StorageDead(_11); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6 +- StorageDead(_10); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6 +- _9 = const (); // scope 3 at $DIR/issue_107511.rs:+6:5: +8:6 + goto -> bb3; // scope 3 at $DIR/issue_107511.rs:+6:5: +8:6 + } + } + diff --git a/tests/mir-opt/copy-prop/issue_107511.rs b/tests/mir-opt/copy-prop/issue_107511.rs new file mode 100644 index 000000000000..d593f2872ea4 --- /dev/null +++ b/tests/mir-opt/copy-prop/issue_107511.rs @@ -0,0 +1,13 @@ +// unit-test: CopyProp + +// EMIT_MIR issue_107511.main.CopyProp.diff +fn main() { + let mut sum = 0; + let a = [0, 10, 20, 30]; + + // `i` is assigned in a loop. Only removing its `StorageDead` would mean that + // execution sees repeated `StorageLive`. This would be UB. + for i in 0..a.len() { + sum += a[i]; + } +} diff --git a/tests/mir-opt/dataflow-const-prop/enum.main.DataflowConstProp.diff b/tests/mir-opt/dataflow-const-prop/enum.main.DataflowConstProp.diff index fce18fae4362..d049c79d78de 100644 --- a/tests/mir-opt/dataflow-const-prop/enum.main.DataflowConstProp.diff +++ b/tests/mir-opt/dataflow-const-prop/enum.main.DataflowConstProp.diff @@ -23,9 +23,7 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/enum.rs:+1:9: +1:10 - Deinit(_1); // scope 0 at $DIR/enum.rs:+1:13: +1:21 - ((_1 as V1).0: i32) = const 0_i32; // scope 0 at $DIR/enum.rs:+1:13: +1:21 - discriminant(_1) = 0; // scope 0 at $DIR/enum.rs:+1:13: +1:21 + _1 = E::V1(const 0_i32); // scope 0 at $DIR/enum.rs:+1:13: +1:21 StorageLive(_2); // scope 1 at $DIR/enum.rs:+2:9: +2:10 _3 = discriminant(_1); // scope 1 at $DIR/enum.rs:+2:19: +2:20 switchInt(move _3) -> [0: bb3, 1: bb1, otherwise: bb2]; // scope 1 at $DIR/enum.rs:+2:13: +2:20 diff --git a/tests/mir-opt/dataflow-const-prop/inherit_overflow.main.DataflowConstProp.diff b/tests/mir-opt/dataflow-const-prop/inherit_overflow.main.DataflowConstProp.diff index 6870d7d6c45b..9c3f87f47c12 100644 --- a/tests/mir-opt/dataflow-const-prop/inherit_overflow.main.DataflowConstProp.diff +++ b/tests/mir-opt/dataflow-const-prop/inherit_overflow.main.DataflowConstProp.diff @@ -16,9 +16,7 @@ } bb0: { - StorageLive(_1); // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47 _1 = const u8::MAX; // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47 - StorageLive(_2); // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47 _2 = const 1_u8; // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47 _5 = CheckedAdd(const u8::MAX, const 1_u8); // scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL assert(!move (_5.1: bool), "attempt to compute `{} + {}`, which would overflow", const u8::MAX, const 1_u8) -> bb1; // scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL diff --git a/tests/mir-opt/dataflow-const-prop/repr_transparent.main.DataflowConstProp.diff b/tests/mir-opt/dataflow-const-prop/repr_transparent.main.DataflowConstProp.diff index f66b00a9a224..8f045eedfb05 100644 --- a/tests/mir-opt/dataflow-const-prop/repr_transparent.main.DataflowConstProp.diff +++ b/tests/mir-opt/dataflow-const-prop/repr_transparent.main.DataflowConstProp.diff @@ -17,8 +17,7 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/repr_transparent.rs:+1:9: +1:10 - Deinit(_1); // scope 0 at $DIR/repr_transparent.rs:+1:13: +1:19 - (_1.0: i32) = const 0_i32; // scope 0 at $DIR/repr_transparent.rs:+1:13: +1:19 + _1 = I32(const 0_i32); // scope 0 at $DIR/repr_transparent.rs:+1:13: +1:19 StorageLive(_2); // scope 1 at $DIR/repr_transparent.rs:+2:9: +2:10 StorageLive(_3); // scope 1 at $DIR/repr_transparent.rs:+2:17: +2:26 StorageLive(_4); // scope 1 at $DIR/repr_transparent.rs:+2:17: +2:20 @@ -31,9 +30,8 @@ + _3 = const 0_i32; // scope 1 at $DIR/repr_transparent.rs:+2:17: +2:26 StorageDead(_5); // scope 1 at $DIR/repr_transparent.rs:+2:25: +2:26 StorageDead(_4); // scope 1 at $DIR/repr_transparent.rs:+2:25: +2:26 - Deinit(_2); // scope 1 at $DIR/repr_transparent.rs:+2:13: +2:27 -- (_2.0: i32) = move _3; // scope 1 at $DIR/repr_transparent.rs:+2:13: +2:27 -+ (_2.0: i32) = const 0_i32; // scope 1 at $DIR/repr_transparent.rs:+2:13: +2:27 +- _2 = I32(move _3); // scope 1 at $DIR/repr_transparent.rs:+2:13: +2:27 ++ _2 = I32(const 0_i32); // scope 1 at $DIR/repr_transparent.rs:+2:13: +2:27 StorageDead(_3); // scope 1 at $DIR/repr_transparent.rs:+2:26: +2:27 _0 = const (); // scope 0 at $DIR/repr_transparent.rs:+0:11: +3:2 StorageDead(_2); // scope 1 at $DIR/repr_transparent.rs:+3:1: +3:2 diff --git a/tests/mir-opt/dataflow-const-prop/sibling_ptr.main.DataflowConstProp.diff b/tests/mir-opt/dataflow-const-prop/sibling_ptr.main.DataflowConstProp.diff index 8126d4b8585e..a91a755830d1 100644 --- a/tests/mir-opt/dataflow-const-prop/sibling_ptr.main.DataflowConstProp.diff +++ b/tests/mir-opt/dataflow-const-prop/sibling_ptr.main.DataflowConstProp.diff @@ -23,9 +23,7 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/sibling_ptr.rs:+1:9: +1:14 - Deinit(_1); // scope 0 at $DIR/sibling_ptr.rs:+1:27: +1:33 - (_1.0: u8) = const 0_u8; // scope 0 at $DIR/sibling_ptr.rs:+1:27: +1:33 - (_1.1: u8) = const 0_u8; // scope 0 at $DIR/sibling_ptr.rs:+1:27: +1:33 + _1 = (const 0_u8, const 0_u8); // scope 0 at $DIR/sibling_ptr.rs:+1:27: +1:33 StorageLive(_2); // scope 1 at $DIR/sibling_ptr.rs:+2:5: +5:6 StorageLive(_3); // scope 2 at $DIR/sibling_ptr.rs:+3:13: +3:14 _3 = &raw mut (_1.0: u8); // scope 2 at $SRC_DIR/core/src/ptr/mod.rs:LL:COL diff --git a/tests/mir-opt/dataflow-const-prop/struct.main.DataflowConstProp.diff b/tests/mir-opt/dataflow-const-prop/struct.main.DataflowConstProp.diff index cfb2706c167c..53c62c081739 100644 --- a/tests/mir-opt/dataflow-const-prop/struct.main.DataflowConstProp.diff +++ b/tests/mir-opt/dataflow-const-prop/struct.main.DataflowConstProp.diff @@ -21,8 +21,7 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/struct.rs:+1:9: +1:14 - Deinit(_1); // scope 0 at $DIR/struct.rs:+1:17: +1:21 - (_1.0: i32) = const 1_i32; // scope 0 at $DIR/struct.rs:+1:17: +1:21 + _1 = S(const 1_i32); // scope 0 at $DIR/struct.rs:+1:17: +1:21 StorageLive(_2); // scope 1 at $DIR/struct.rs:+2:9: +2:10 StorageLive(_3); // scope 1 at $DIR/struct.rs:+2:13: +2:16 - _3 = (_1.0: i32); // scope 1 at $DIR/struct.rs:+2:13: +2:16 diff --git a/tests/mir-opt/dataflow-const-prop/tuple.main.DataflowConstProp.diff b/tests/mir-opt/dataflow-const-prop/tuple.main.DataflowConstProp.diff index e028def00a11..8ce4ce4ba976 100644 --- a/tests/mir-opt/dataflow-const-prop/tuple.main.DataflowConstProp.diff +++ b/tests/mir-opt/dataflow-const-prop/tuple.main.DataflowConstProp.diff @@ -25,9 +25,7 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/tuple.rs:+1:9: +1:14 - Deinit(_1); // scope 0 at $DIR/tuple.rs:+1:17: +1:23 - (_1.0: i32) = const 1_i32; // scope 0 at $DIR/tuple.rs:+1:17: +1:23 - (_1.1: i32) = const 2_i32; // scope 0 at $DIR/tuple.rs:+1:17: +1:23 + _1 = (const 1_i32, const 2_i32); // scope 0 at $DIR/tuple.rs:+1:17: +1:23 StorageLive(_2); // scope 1 at $DIR/tuple.rs:+2:9: +2:10 StorageLive(_3); // scope 1 at $DIR/tuple.rs:+2:13: +2:22 StorageLive(_4); // scope 1 at $DIR/tuple.rs:+2:13: +2:16 @@ -43,9 +41,7 @@ - _2 = Add(move _3, const 3_i32); // scope 1 at $DIR/tuple.rs:+2:13: +2:26 + _2 = const 6_i32; // scope 1 at $DIR/tuple.rs:+2:13: +2:26 StorageDead(_3); // scope 1 at $DIR/tuple.rs:+2:25: +2:26 - Deinit(_1); // scope 2 at $DIR/tuple.rs:+3:5: +3:15 - (_1.0: i32) = const 2_i32; // scope 2 at $DIR/tuple.rs:+3:5: +3:15 - (_1.1: i32) = const 3_i32; // scope 2 at $DIR/tuple.rs:+3:5: +3:15 + _1 = (const 2_i32, const 3_i32); // scope 2 at $DIR/tuple.rs:+3:5: +3:15 StorageLive(_6); // scope 2 at $DIR/tuple.rs:+4:9: +4:10 StorageLive(_7); // scope 2 at $DIR/tuple.rs:+4:13: +4:22 StorageLive(_8); // scope 2 at $DIR/tuple.rs:+4:13: +4:16 diff --git a/tests/mir-opt/deaggregator_test.bar.Deaggregator.diff b/tests/mir-opt/deaggregator_test.bar.Deaggregator.diff deleted file mode 100644 index db136485a211..000000000000 --- a/tests/mir-opt/deaggregator_test.bar.Deaggregator.diff +++ /dev/null @@ -1,21 +0,0 @@ -- // MIR for `bar` before Deaggregator -+ // MIR for `bar` after Deaggregator - - fn bar(_1: usize) -> Baz { - debug a => _1; // in scope 0 at $DIR/deaggregator_test.rs:+0:8: +0:9 - let mut _0: Baz; // return place in scope 0 at $DIR/deaggregator_test.rs:+0:21: +0:24 - let mut _2: usize; // in scope 0 at $DIR/deaggregator_test.rs:+1:14: +1:15 - - bb0: { - StorageLive(_2); // scope 0 at $DIR/deaggregator_test.rs:+1:14: +1:15 - _2 = _1; // scope 0 at $DIR/deaggregator_test.rs:+1:14: +1:15 -- _0 = Baz { x: move _2, y: const 0f32, z: const false }; // scope 0 at $DIR/deaggregator_test.rs:+1:5: +1:35 -+ Deinit(_0); // scope 0 at $DIR/deaggregator_test.rs:+1:5: +1:35 -+ (_0.0: usize) = move _2; // scope 0 at $DIR/deaggregator_test.rs:+1:5: +1:35 -+ (_0.1: f32) = const 0f32; // scope 0 at $DIR/deaggregator_test.rs:+1:5: +1:35 -+ (_0.2: bool) = const false; // scope 0 at $DIR/deaggregator_test.rs:+1:5: +1:35 - StorageDead(_2); // scope 0 at $DIR/deaggregator_test.rs:+1:34: +1:35 - return; // scope 0 at $DIR/deaggregator_test.rs:+2:2: +2:2 - } - } - diff --git a/tests/mir-opt/deaggregator_test.rs b/tests/mir-opt/deaggregator_test.rs deleted file mode 100644 index ee59402af386..000000000000 --- a/tests/mir-opt/deaggregator_test.rs +++ /dev/null @@ -1,17 +0,0 @@ -// unit-test: Deaggregator - -struct Baz { - x: usize, - y: f32, - z: bool, -} - -// EMIT_MIR deaggregator_test.bar.Deaggregator.diff -fn bar(a: usize) -> Baz { - Baz { x: a, y: 0.0, z: false } -} - -fn main() { - // Make sure the function actually gets instantiated. - bar(0); -} diff --git a/tests/mir-opt/deaggregator_test_enum.bar.Deaggregator.diff b/tests/mir-opt/deaggregator_test_enum.bar.Deaggregator.diff deleted file mode 100644 index f28c2b482af2..000000000000 --- a/tests/mir-opt/deaggregator_test_enum.bar.Deaggregator.diff +++ /dev/null @@ -1,20 +0,0 @@ -- // MIR for `bar` before Deaggregator -+ // MIR for `bar` after Deaggregator - - fn bar(_1: usize) -> Baz { - debug a => _1; // in scope 0 at $DIR/deaggregator_test_enum.rs:+0:8: +0:9 - let mut _0: Baz; // return place in scope 0 at $DIR/deaggregator_test_enum.rs:+0:21: +0:24 - let mut _2: usize; // in scope 0 at $DIR/deaggregator_test_enum.rs:+1:19: +1:20 - - bb0: { - StorageLive(_2); // scope 0 at $DIR/deaggregator_test_enum.rs:+1:19: +1:20 - _2 = _1; // scope 0 at $DIR/deaggregator_test_enum.rs:+1:19: +1:20 -- _0 = Baz::Foo { x: move _2 }; // scope 0 at $DIR/deaggregator_test_enum.rs:+1:5: +1:22 -+ Deinit(_0); // scope 0 at $DIR/deaggregator_test_enum.rs:+1:5: +1:22 -+ ((_0 as Foo).0: usize) = move _2; // scope 0 at $DIR/deaggregator_test_enum.rs:+1:5: +1:22 -+ discriminant(_0) = 1; // scope 0 at $DIR/deaggregator_test_enum.rs:+1:5: +1:22 - StorageDead(_2); // scope 0 at $DIR/deaggregator_test_enum.rs:+1:21: +1:22 - return; // scope 0 at $DIR/deaggregator_test_enum.rs:+2:2: +2:2 - } - } - diff --git a/tests/mir-opt/deaggregator_test_enum.rs b/tests/mir-opt/deaggregator_test_enum.rs deleted file mode 100644 index ea402dafdec7..000000000000 --- a/tests/mir-opt/deaggregator_test_enum.rs +++ /dev/null @@ -1,19 +0,0 @@ -// unit-test: Deaggregator - -enum Baz { - Empty, - Foo { x: usize }, -} - -// EMIT_MIR deaggregator_test_enum.bar.Deaggregator.diff -fn bar(a: usize) -> Baz { - Baz::Foo { x: a } -} - -fn main() { - let x = bar(10); - match x { - Baz::Empty => println!("empty"), - Baz::Foo { x } => println!("{}", x), - }; -} diff --git a/tests/mir-opt/deaggregator_test_enum_2.rs b/tests/mir-opt/deaggregator_test_enum_2.rs deleted file mode 100644 index 955c317324aa..000000000000 --- a/tests/mir-opt/deaggregator_test_enum_2.rs +++ /dev/null @@ -1,21 +0,0 @@ -// unit-test: Deaggregator -// Test that deaggregate fires in more than one basic block - -enum Foo { - A(i32), - B(i32), -} - -// EMIT_MIR deaggregator_test_enum_2.test1.Deaggregator.diff -fn test1(x: bool, y: i32) -> Foo { - if x { - Foo::A(y) - } else { - Foo::B(y) - } -} - -fn main() { - // Make sure the function actually gets instantiated. - test1(false, 0); -} diff --git a/tests/mir-opt/deaggregator_test_enum_2.test1.Deaggregator.diff b/tests/mir-opt/deaggregator_test_enum_2.test1.Deaggregator.diff deleted file mode 100644 index 210d3849e18a..000000000000 --- a/tests/mir-opt/deaggregator_test_enum_2.test1.Deaggregator.diff +++ /dev/null @@ -1,45 +0,0 @@ -- // MIR for `test1` before Deaggregator -+ // MIR for `test1` after Deaggregator - - fn test1(_1: bool, _2: i32) -> Foo { - debug x => _1; // in scope 0 at $DIR/deaggregator_test_enum_2.rs:+0:10: +0:11 - debug y => _2; // in scope 0 at $DIR/deaggregator_test_enum_2.rs:+0:19: +0:20 - let mut _0: Foo; // return place in scope 0 at $DIR/deaggregator_test_enum_2.rs:+0:30: +0:33 - let mut _3: bool; // in scope 0 at $DIR/deaggregator_test_enum_2.rs:+1:8: +1:9 - let mut _4: i32; // in scope 0 at $DIR/deaggregator_test_enum_2.rs:+2:16: +2:17 - let mut _5: i32; // in scope 0 at $DIR/deaggregator_test_enum_2.rs:+4:16: +4:17 - - bb0: { - StorageLive(_3); // scope 0 at $DIR/deaggregator_test_enum_2.rs:+1:8: +1:9 - _3 = _1; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+1:8: +1:9 - switchInt(move _3) -> [0: bb2, otherwise: bb1]; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+1:8: +1:9 - } - - bb1: { - StorageLive(_4); // scope 0 at $DIR/deaggregator_test_enum_2.rs:+2:16: +2:17 - _4 = _2; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+2:16: +2:17 -- _0 = Foo::A(move _4); // scope 0 at $DIR/deaggregator_test_enum_2.rs:+2:9: +2:18 -+ Deinit(_0); // scope 0 at $DIR/deaggregator_test_enum_2.rs:+2:9: +2:18 -+ ((_0 as A).0: i32) = move _4; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+2:9: +2:18 -+ discriminant(_0) = 0; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+2:9: +2:18 - StorageDead(_4); // scope 0 at $DIR/deaggregator_test_enum_2.rs:+2:17: +2:18 - goto -> bb3; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+1:5: +5:6 - } - - bb2: { - StorageLive(_5); // scope 0 at $DIR/deaggregator_test_enum_2.rs:+4:16: +4:17 - _5 = _2; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+4:16: +4:17 -- _0 = Foo::B(move _5); // scope 0 at $DIR/deaggregator_test_enum_2.rs:+4:9: +4:18 -+ Deinit(_0); // scope 0 at $DIR/deaggregator_test_enum_2.rs:+4:9: +4:18 -+ ((_0 as B).0: i32) = move _5; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+4:9: +4:18 -+ discriminant(_0) = 1; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+4:9: +4:18 - StorageDead(_5); // scope 0 at $DIR/deaggregator_test_enum_2.rs:+4:17: +4:18 - goto -> bb3; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+1:5: +5:6 - } - - bb3: { - StorageDead(_3); // scope 0 at $DIR/deaggregator_test_enum_2.rs:+5:5: +5:6 - return; // scope 0 at $DIR/deaggregator_test_enum_2.rs:+6:2: +6:2 - } - } - diff --git a/tests/mir-opt/deaggregator_test_multiple.rs b/tests/mir-opt/deaggregator_test_multiple.rs deleted file mode 100644 index 46305fe21d28..000000000000 --- a/tests/mir-opt/deaggregator_test_multiple.rs +++ /dev/null @@ -1,17 +0,0 @@ -// unit-test: Deaggregator -// Test that deaggregate fires more than once per block - -enum Foo { - A(i32), - B, -} - -// EMIT_MIR deaggregator_test_multiple.test.Deaggregator.diff -fn test(x: i32) -> [Foo; 2] { - [Foo::A(x), Foo::A(x)] -} - -fn main() { - // Make sure the function actually gets instantiated. - test(0); -} diff --git a/tests/mir-opt/deaggregator_test_multiple.test.Deaggregator.diff b/tests/mir-opt/deaggregator_test_multiple.test.Deaggregator.diff deleted file mode 100644 index cf5da273c289..000000000000 --- a/tests/mir-opt/deaggregator_test_multiple.test.Deaggregator.diff +++ /dev/null @@ -1,35 +0,0 @@ -- // MIR for `test` before Deaggregator -+ // MIR for `test` after Deaggregator - - fn test(_1: i32) -> [Foo; 2] { - debug x => _1; // in scope 0 at $DIR/deaggregator_test_multiple.rs:+0:9: +0:10 - let mut _0: [Foo; 2]; // return place in scope 0 at $DIR/deaggregator_test_multiple.rs:+0:20: +0:28 - let mut _2: Foo; // in scope 0 at $DIR/deaggregator_test_multiple.rs:+1:6: +1:15 - let mut _3: i32; // in scope 0 at $DIR/deaggregator_test_multiple.rs:+1:13: +1:14 - let mut _4: Foo; // in scope 0 at $DIR/deaggregator_test_multiple.rs:+1:17: +1:26 - let mut _5: i32; // in scope 0 at $DIR/deaggregator_test_multiple.rs:+1:24: +1:25 - - bb0: { - StorageLive(_2); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:6: +1:15 - StorageLive(_3); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:13: +1:14 - _3 = _1; // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:13: +1:14 -- _2 = Foo::A(move _3); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:6: +1:15 -+ Deinit(_2); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:6: +1:15 -+ ((_2 as A).0: i32) = move _3; // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:6: +1:15 -+ discriminant(_2) = 0; // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:6: +1:15 - StorageDead(_3); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:14: +1:15 - StorageLive(_4); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:17: +1:26 - StorageLive(_5); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:24: +1:25 - _5 = _1; // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:24: +1:25 -- _4 = Foo::A(move _5); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:17: +1:26 -+ Deinit(_4); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:17: +1:26 -+ ((_4 as A).0: i32) = move _5; // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:17: +1:26 -+ discriminant(_4) = 0; // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:17: +1:26 - StorageDead(_5); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:25: +1:26 - _0 = [move _2, move _4]; // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:5: +1:27 - StorageDead(_4); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:26: +1:27 - StorageDead(_2); // scope 0 at $DIR/deaggregator_test_multiple.rs:+1:26: +1:27 - return; // scope 0 at $DIR/deaggregator_test_multiple.rs:+2:2: +2:2 - } - } - diff --git a/tests/mir-opt/early_otherwise_branch.opt1.EarlyOtherwiseBranch.diff b/tests/mir-opt/early_otherwise_branch.opt1.EarlyOtherwiseBranch.diff index 98a02ee38dd1..5383d1be1298 100644 --- a/tests/mir-opt/early_otherwise_branch.opt1.EarlyOtherwiseBranch.diff +++ b/tests/mir-opt/early_otherwise_branch.opt1.EarlyOtherwiseBranch.diff @@ -25,9 +25,7 @@ _4 = _1; // scope 0 at $DIR/early_otherwise_branch.rs:+1:12: +1:13 StorageLive(_5); // scope 0 at $DIR/early_otherwise_branch.rs:+1:15: +1:16 _5 = _2; // scope 0 at $DIR/early_otherwise_branch.rs:+1:15: +1:16 - Deinit(_3); // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 - (_3.0: std::option::Option) = move _4; // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 - (_3.1: std::option::Option) = move _5; // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 + _3 = (move _4, move _5); // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 StorageDead(_5); // scope 0 at $DIR/early_otherwise_branch.rs:+1:16: +1:17 StorageDead(_4); // scope 0 at $DIR/early_otherwise_branch.rs:+1:16: +1:17 _7 = discriminant((_3.0: std::option::Option)); // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 diff --git a/tests/mir-opt/early_otherwise_branch.opt2.EarlyOtherwiseBranch.diff b/tests/mir-opt/early_otherwise_branch.opt2.EarlyOtherwiseBranch.diff index aa75c44b809a..b3e21ff49bdf 100644 --- a/tests/mir-opt/early_otherwise_branch.opt2.EarlyOtherwiseBranch.diff +++ b/tests/mir-opt/early_otherwise_branch.opt2.EarlyOtherwiseBranch.diff @@ -26,9 +26,7 @@ _4 = _1; // scope 0 at $DIR/early_otherwise_branch.rs:+1:12: +1:13 StorageLive(_5); // scope 0 at $DIR/early_otherwise_branch.rs:+1:15: +1:16 _5 = _2; // scope 0 at $DIR/early_otherwise_branch.rs:+1:15: +1:16 - Deinit(_3); // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 - (_3.0: std::option::Option) = move _4; // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 - (_3.1: std::option::Option) = move _5; // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 + _3 = (move _4, move _5); // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 StorageDead(_5); // scope 0 at $DIR/early_otherwise_branch.rs:+1:16: +1:17 StorageDead(_4); // scope 0 at $DIR/early_otherwise_branch.rs:+1:16: +1:17 _8 = discriminant((_3.0: std::option::Option)); // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 diff --git a/tests/mir-opt/early_otherwise_branch.opt3.EarlyOtherwiseBranch.diff b/tests/mir-opt/early_otherwise_branch.opt3.EarlyOtherwiseBranch.diff index cea6ff7cd05e..e098a88eb557 100644 --- a/tests/mir-opt/early_otherwise_branch.opt3.EarlyOtherwiseBranch.diff +++ b/tests/mir-opt/early_otherwise_branch.opt3.EarlyOtherwiseBranch.diff @@ -25,9 +25,7 @@ _4 = _1; // scope 0 at $DIR/early_otherwise_branch.rs:+1:12: +1:13 StorageLive(_5); // scope 0 at $DIR/early_otherwise_branch.rs:+1:15: +1:16 _5 = _2; // scope 0 at $DIR/early_otherwise_branch.rs:+1:15: +1:16 - Deinit(_3); // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 - (_3.0: std::option::Option) = move _4; // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 - (_3.1: std::option::Option) = move _5; // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 + _3 = (move _4, move _5); // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 StorageDead(_5); // scope 0 at $DIR/early_otherwise_branch.rs:+1:16: +1:17 StorageDead(_4); // scope 0 at $DIR/early_otherwise_branch.rs:+1:16: +1:17 _7 = discriminant((_3.0: std::option::Option)); // scope 0 at $DIR/early_otherwise_branch.rs:+1:11: +1:17 diff --git a/tests/mir-opt/early_otherwise_branch_3_element_tuple.opt1.EarlyOtherwiseBranch.diff b/tests/mir-opt/early_otherwise_branch_3_element_tuple.opt1.EarlyOtherwiseBranch.diff index b90d70ce43aa..ec3b4bbdff42 100644 --- a/tests/mir-opt/early_otherwise_branch_3_element_tuple.opt1.EarlyOtherwiseBranch.diff +++ b/tests/mir-opt/early_otherwise_branch_3_element_tuple.opt1.EarlyOtherwiseBranch.diff @@ -34,10 +34,7 @@ _6 = _2; // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:15: +1:16 StorageLive(_7); // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:18: +1:19 _7 = _3; // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:18: +1:19 - Deinit(_4); // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:11: +1:20 - (_4.0: std::option::Option) = move _5; // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:11: +1:20 - (_4.1: std::option::Option) = move _6; // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:11: +1:20 - (_4.2: std::option::Option) = move _7; // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:11: +1:20 + _4 = (move _5, move _6, move _7); // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:11: +1:20 StorageDead(_7); // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:19: +1:20 StorageDead(_6); // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:19: +1:20 StorageDead(_5); // scope 0 at $DIR/early_otherwise_branch_3_element_tuple.rs:+1:19: +1:20 diff --git a/tests/mir-opt/early_otherwise_branch_68867.try_sum.EarlyOtherwiseBranch.diff b/tests/mir-opt/early_otherwise_branch_68867.try_sum.EarlyOtherwiseBranch.diff index 9edd1a39f45f..a91d0d7cf730 100644 --- a/tests/mir-opt/early_otherwise_branch_68867.try_sum.EarlyOtherwiseBranch.diff +++ b/tests/mir-opt/early_otherwise_branch_68867.try_sum.EarlyOtherwiseBranch.diff @@ -73,9 +73,7 @@ _5 = _1; // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:15: +5:16 StorageLive(_6); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:18: +5:23 _6 = _2; // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:18: +5:23 - Deinit(_4); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:14: +5:24 - (_4.0: &ViewportPercentageLength) = move _5; // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:14: +5:24 - (_4.1: &ViewportPercentageLength) = move _6; // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:14: +5:24 + _4 = (move _5, move _6); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:14: +5:24 StorageDead(_6); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:23: +5:24 StorageDead(_5); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:23: +5:24 _34 = deref_copy (_4.0: &ViewportPercentageLength); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:14: +5:24 @@ -91,10 +89,8 @@ bb2: { StorageLive(_33); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+10:25: +10:27 - Deinit(_33); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+10:25: +10:27 - Deinit(_0); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+10:21: +10:28 - ((_0 as Err).0: ()) = move _33; // scope 0 at $DIR/early_otherwise_branch_68867.rs:+10:21: +10:28 - discriminant(_0) = 1; // scope 0 at $DIR/early_otherwise_branch_68867.rs:+10:21: +10:28 + _33 = (); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+10:25: +10:27 + _0 = Result::::Err(move _33); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+10:21: +10:28 StorageDead(_33); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+10:27: +10:28 StorageDead(_3); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+11:6: +11:7 StorageDead(_4); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+12:1: +12:2 @@ -134,9 +130,7 @@ _14 = Add(move _15, move _16); // scope 1 at $DIR/early_otherwise_branch_68867.rs:+6:38: +6:49 StorageDead(_16); // scope 1 at $DIR/early_otherwise_branch_68867.rs:+6:48: +6:49 StorageDead(_15); // scope 1 at $DIR/early_otherwise_branch_68867.rs:+6:48: +6:49 - Deinit(_3); // scope 1 at $DIR/early_otherwise_branch_68867.rs:+6:35: +6:50 - ((_3 as Vw).0: f32) = move _14; // scope 1 at $DIR/early_otherwise_branch_68867.rs:+6:35: +6:50 - discriminant(_3) = 0; // scope 1 at $DIR/early_otherwise_branch_68867.rs:+6:35: +6:50 + _3 = ViewportPercentageLength::Vw(move _14); // scope 1 at $DIR/early_otherwise_branch_68867.rs:+6:35: +6:50 StorageDead(_14); // scope 1 at $DIR/early_otherwise_branch_68867.rs:+6:49: +6:50 StorageDead(_13); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+6:49: +6:50 StorageDead(_12); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+6:49: +6:50 @@ -158,9 +152,7 @@ _19 = Add(move _20, move _21); // scope 2 at $DIR/early_otherwise_branch_68867.rs:+7:38: +7:49 StorageDead(_21); // scope 2 at $DIR/early_otherwise_branch_68867.rs:+7:48: +7:49 StorageDead(_20); // scope 2 at $DIR/early_otherwise_branch_68867.rs:+7:48: +7:49 - Deinit(_3); // scope 2 at $DIR/early_otherwise_branch_68867.rs:+7:35: +7:50 - ((_3 as Vh).0: f32) = move _19; // scope 2 at $DIR/early_otherwise_branch_68867.rs:+7:35: +7:50 - discriminant(_3) = 1; // scope 2 at $DIR/early_otherwise_branch_68867.rs:+7:35: +7:50 + _3 = ViewportPercentageLength::Vh(move _19); // scope 2 at $DIR/early_otherwise_branch_68867.rs:+7:35: +7:50 StorageDead(_19); // scope 2 at $DIR/early_otherwise_branch_68867.rs:+7:49: +7:50 StorageDead(_18); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+7:49: +7:50 StorageDead(_17); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+7:49: +7:50 @@ -182,9 +174,7 @@ _24 = Add(move _25, move _26); // scope 3 at $DIR/early_otherwise_branch_68867.rs:+8:44: +8:55 StorageDead(_26); // scope 3 at $DIR/early_otherwise_branch_68867.rs:+8:54: +8:55 StorageDead(_25); // scope 3 at $DIR/early_otherwise_branch_68867.rs:+8:54: +8:55 - Deinit(_3); // scope 3 at $DIR/early_otherwise_branch_68867.rs:+8:39: +8:56 - ((_3 as Vmin).0: f32) = move _24; // scope 3 at $DIR/early_otherwise_branch_68867.rs:+8:39: +8:56 - discriminant(_3) = 2; // scope 3 at $DIR/early_otherwise_branch_68867.rs:+8:39: +8:56 + _3 = ViewportPercentageLength::Vmin(move _24); // scope 3 at $DIR/early_otherwise_branch_68867.rs:+8:39: +8:56 StorageDead(_24); // scope 3 at $DIR/early_otherwise_branch_68867.rs:+8:55: +8:56 StorageDead(_23); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+8:55: +8:56 StorageDead(_22); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+8:55: +8:56 @@ -206,9 +196,7 @@ _29 = Add(move _30, move _31); // scope 4 at $DIR/early_otherwise_branch_68867.rs:+9:44: +9:55 StorageDead(_31); // scope 4 at $DIR/early_otherwise_branch_68867.rs:+9:54: +9:55 StorageDead(_30); // scope 4 at $DIR/early_otherwise_branch_68867.rs:+9:54: +9:55 - Deinit(_3); // scope 4 at $DIR/early_otherwise_branch_68867.rs:+9:39: +9:56 - ((_3 as Vmax).0: f32) = move _29; // scope 4 at $DIR/early_otherwise_branch_68867.rs:+9:39: +9:56 - discriminant(_3) = 3; // scope 4 at $DIR/early_otherwise_branch_68867.rs:+9:39: +9:56 + _3 = ViewportPercentageLength::Vmax(move _29); // scope 4 at $DIR/early_otherwise_branch_68867.rs:+9:39: +9:56 StorageDead(_29); // scope 4 at $DIR/early_otherwise_branch_68867.rs:+9:55: +9:56 StorageDead(_28); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+9:55: +9:56 StorageDead(_27); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+9:55: +9:56 @@ -216,9 +204,7 @@ } bb10: { - Deinit(_0); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:5: +11:7 - ((_0 as Ok).0: ViewportPercentageLength) = move _3; // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:5: +11:7 - discriminant(_0) = 0; // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:5: +11:7 + _0 = Result::::Ok(move _3); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+5:5: +11:7 StorageDead(_3); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+11:6: +11:7 StorageDead(_4); // scope 0 at $DIR/early_otherwise_branch_68867.rs:+12:1: +12:2 goto -> bb11; // scope 0 at $DIR/early_otherwise_branch_68867.rs:+12:2: +12:2 diff --git a/tests/mir-opt/early_otherwise_branch_noopt.noopt1.EarlyOtherwiseBranch.diff b/tests/mir-opt/early_otherwise_branch_noopt.noopt1.EarlyOtherwiseBranch.diff index 82d8b2fc5a46..6468eb5f8dde 100644 --- a/tests/mir-opt/early_otherwise_branch_noopt.noopt1.EarlyOtherwiseBranch.diff +++ b/tests/mir-opt/early_otherwise_branch_noopt.noopt1.EarlyOtherwiseBranch.diff @@ -32,9 +32,7 @@ _4 = _1; // scope 0 at $DIR/early_otherwise_branch_noopt.rs:+1:12: +1:13 StorageLive(_5); // scope 0 at $DIR/early_otherwise_branch_noopt.rs:+1:15: +1:16 _5 = _2; // scope 0 at $DIR/early_otherwise_branch_noopt.rs:+1:15: +1:16 - Deinit(_3); // scope 0 at $DIR/early_otherwise_branch_noopt.rs:+1:11: +1:17 - (_3.0: std::option::Option) = move _4; // scope 0 at $DIR/early_otherwise_branch_noopt.rs:+1:11: +1:17 - (_3.1: std::option::Option) = move _5; // scope 0 at $DIR/early_otherwise_branch_noopt.rs:+1:11: +1:17 + _3 = (move _4, move _5); // scope 0 at $DIR/early_otherwise_branch_noopt.rs:+1:11: +1:17 StorageDead(_5); // scope 0 at $DIR/early_otherwise_branch_noopt.rs:+1:16: +1:17 StorageDead(_4); // scope 0 at $DIR/early_otherwise_branch_noopt.rs:+1:16: +1:17 _8 = discriminant((_3.0: std::option::Option)); // scope 0 at $DIR/early_otherwise_branch_noopt.rs:+1:11: +1:17 diff --git a/tests/mir-opt/funky_arms.float_to_exponential_common.ConstProp.diff b/tests/mir-opt/funky_arms.float_to_exponential_common.ConstProp.diff index df9f8dcf1a40..5ebaacd4ba91 100644 --- a/tests/mir-opt/funky_arms.float_to_exponential_common.ConstProp.diff +++ b/tests/mir-opt/funky_arms.float_to_exponential_common.ConstProp.diff @@ -51,14 +51,20 @@ } bb2: { - Deinit(_6); // scope 1 at $DIR/funky_arms.rs:+10:17: +10:41 - discriminant(_6) = 1; // scope 1 at $DIR/funky_arms.rs:+10:17: +10:41 +- _6 = MinusPlus; // scope 1 at $DIR/funky_arms.rs:+10:17: +10:41 ++ _6 = const MinusPlus; // scope 1 at $DIR/funky_arms.rs:+10:17: +10:41 ++ // mir::Constant ++ // + span: $DIR/funky_arms.rs:21:17: 21:41 ++ // + literal: Const { ty: Sign, val: Value(Scalar(0x01)) } goto -> bb4; // scope 1 at $DIR/funky_arms.rs:+10:17: +10:41 } bb3: { - Deinit(_6); // scope 1 at $DIR/funky_arms.rs:+9:18: +9:38 - discriminant(_6) = 0; // scope 1 at $DIR/funky_arms.rs:+9:18: +9:38 +- _6 = Minus; // scope 1 at $DIR/funky_arms.rs:+9:18: +9:38 ++ _6 = const Minus; // scope 1 at $DIR/funky_arms.rs:+9:18: +9:38 ++ // mir::Constant ++ // + span: $DIR/funky_arms.rs:20:18: 20:38 ++ // + literal: Const { ty: Sign, val: Value(Scalar(0x00)) } goto -> bb4; // scope 1 at $DIR/funky_arms.rs:+9:18: +9:38 } @@ -79,7 +85,6 @@ } bb6: { - StorageLive(_10); // scope 3 at $DIR/funky_arms.rs:+13:17: +13:26 _10 = ((_7 as Some).0: usize); // scope 3 at $DIR/funky_arms.rs:+13:17: +13:26 StorageLive(_11); // scope 3 at $DIR/funky_arms.rs:+15:43: +15:46 _11 = &mut (*_1); // scope 3 at $DIR/funky_arms.rs:+15:43: +15:46 diff --git a/tests/mir-opt/generator_tiny.main-{closure#0}.generator_resume.0.mir b/tests/mir-opt/generator_tiny.main-{closure#0}.generator_resume.0.mir index 2f096c3e0a18..7efda05d2b88 100644 --- a/tests/mir-opt/generator_tiny.main-{closure#0}.generator_resume.0.mir +++ b/tests/mir-opt/generator_tiny.main-{closure#0}.generator_resume.0.mir @@ -54,9 +54,7 @@ fn main::{closure#0}(_1: Pin<&mut [generator@$DIR/generator_tiny.rs:19:16: 19:24 StorageLive(_6); // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18 StorageLive(_7); // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18 _7 = (); // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18 - Deinit(_0); // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18 - ((_0 as Yielded).0: ()) = move _7; // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18 - discriminant(_0) = 0; // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18 + _0 = GeneratorState::<(), ()>::Yielded(move _7); // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18 discriminant((*(_1.0: &mut [generator@$DIR/generator_tiny.rs:19:16: 19:24]))) = 3; // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18 return; // scope 1 at $DIR/generator_tiny.rs:+3:13: +3:18 } diff --git a/tests/mir-opt/inline/cycle.f.Inline.diff b/tests/mir-opt/inline/cycle.f.Inline.diff index 75ea69a42eb5..501390c3bf10 100644 --- a/tests/mir-opt/inline/cycle.f.Inline.diff +++ b/tests/mir-opt/inline/cycle.f.Inline.diff @@ -13,7 +13,7 @@ StorageLive(_3); // scope 0 at $DIR/cycle.rs:+1:5: +1:6 _3 = &_1; // scope 0 at $DIR/cycle.rs:+1:5: +1:6 StorageLive(_4); // scope 0 at $DIR/cycle.rs:+1:5: +1:8 - Deinit(_4); // scope 0 at $DIR/cycle.rs:+1:5: +1:8 + _4 = (); // scope 0 at $DIR/cycle.rs:+1:5: +1:8 _2 = >::call(move _3, move _4) -> [return: bb1, unwind: bb3]; // scope 0 at $DIR/cycle.rs:+1:5: +1:8 // mir::Constant // + span: $DIR/cycle.rs:6:5: 6:6 diff --git a/tests/mir-opt/inline/inline_closure.foo.Inline.after.mir b/tests/mir-opt/inline/inline_closure.foo.Inline.after.mir index 9eb3a01eef91..fff8d0171277 100644 --- a/tests/mir-opt/inline/inline_closure.foo.Inline.after.mir +++ b/tests/mir-opt/inline/inline_closure.foo.Inline.after.mir @@ -21,7 +21,15 @@ fn foo(_1: T, _2: i32) -> i32 { bb0: { StorageLive(_3); // scope 0 at $DIR/inline_closure.rs:+1:9: +1:10 - Deinit(_3); // scope 0 at $DIR/inline_closure.rs:+1:13: +1:24 + _3 = [closure@foo::::{closure#0}]; // scope 0 at $DIR/inline_closure.rs:+1:13: +1:24 + // closure + // + def_id: DefId(0:6 ~ inline_closure[92ba]::foo::{closure#0}) + // + substs: [ + // T, + // i8, + // extern "rust-call" fn((i32, i32)) -> i32, + // (), + // ] StorageLive(_4); // scope 1 at $DIR/inline_closure.rs:+2:5: +2:6 _4 = &_3; // scope 1 at $DIR/inline_closure.rs:+2:5: +2:6 StorageLive(_5); // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12 @@ -29,9 +37,7 @@ fn foo(_1: T, _2: i32) -> i32 { _6 = _2; // scope 1 at $DIR/inline_closure.rs:+2:7: +2:8 StorageLive(_7); // scope 1 at $DIR/inline_closure.rs:+2:10: +2:11 _7 = _2; // scope 1 at $DIR/inline_closure.rs:+2:10: +2:11 - Deinit(_5); // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12 - (_5.0: i32) = move _6; // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12 - (_5.1: i32) = move _7; // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12 + _5 = (move _6, move _7); // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12 StorageLive(_8); // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12 _8 = move (_5.0: i32); // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12 StorageLive(_9); // scope 1 at $DIR/inline_closure.rs:+2:5: +2:12 diff --git a/tests/mir-opt/inline/inline_closure_borrows_arg.foo.Inline.after.mir b/tests/mir-opt/inline/inline_closure_borrows_arg.foo.Inline.after.mir index dd32eb2d8d1f..dab2043064f3 100644 --- a/tests/mir-opt/inline/inline_closure_borrows_arg.foo.Inline.after.mir +++ b/tests/mir-opt/inline/inline_closure_borrows_arg.foo.Inline.after.mir @@ -24,7 +24,15 @@ fn foo(_1: T, _2: &i32) -> i32 { bb0: { StorageLive(_3); // scope 0 at $DIR/inline_closure_borrows_arg.rs:+1:9: +1:10 - Deinit(_3); // scope 0 at $DIR/inline_closure_borrows_arg.rs:+1:13: +4:6 + _3 = [closure@foo::::{closure#0}]; // scope 0 at $DIR/inline_closure_borrows_arg.rs:+1:13: +4:6 + // closure + // + def_id: DefId(0:6 ~ inline_closure_borrows_arg[96e9]::foo::{closure#0}) + // + substs: [ + // T, + // i8, + // for<'a, 'b> extern "rust-call" fn((&'a i32, &'b i32)) -> i32, + // (), + // ] StorageLive(_4); // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:6 _4 = &_3; // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:6 StorageLive(_5); // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12 @@ -32,9 +40,7 @@ fn foo(_1: T, _2: &i32) -> i32 { _6 = &(*_2); // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:7: +5:8 StorageLive(_7); // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:10: +5:11 _7 = &(*_2); // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:10: +5:11 - Deinit(_5); // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12 - (_5.0: &i32) = move _6; // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12 - (_5.1: &i32) = move _7; // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12 + _5 = (move _6, move _7); // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12 StorageLive(_8); // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12 _8 = move (_5.0: &i32); // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12 StorageLive(_9); // scope 1 at $DIR/inline_closure_borrows_arg.rs:+5:5: +5:12 diff --git a/tests/mir-opt/inline/inline_closure_captures.foo.Inline.after.mir b/tests/mir-opt/inline/inline_closure_captures.foo.Inline.after.mir index fd19c288666b..84fd051e0a35 100644 --- a/tests/mir-opt/inline/inline_closure_captures.foo.Inline.after.mir +++ b/tests/mir-opt/inline/inline_closure_captures.foo.Inline.after.mir @@ -30,9 +30,15 @@ fn foo(_1: T, _2: i32) -> (i32, T) { _4 = &_2; // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24 StorageLive(_5); // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24 _5 = &_1; // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24 - Deinit(_3); // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24 - (_3.0: &i32) = move _4; // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24 - (_3.1: &T) = move _5; // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24 + _3 = [closure@foo::::{closure#0}] { q: move _4, t: move _5 }; // scope 0 at $DIR/inline_closure_captures.rs:+1:13: +1:24 + // closure + // + def_id: DefId(0:6 ~ inline_closure_captures[8bc0]::foo::{closure#0}) + // + substs: [ + // T, + // i8, + // extern "rust-call" fn((i32,)) -> (i32, T), + // (&i32, &T), + // ] StorageDead(_5); // scope 0 at $DIR/inline_closure_captures.rs:+1:16: +1:17 StorageDead(_4); // scope 0 at $DIR/inline_closure_captures.rs:+1:16: +1:17 StorageLive(_6); // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:6 @@ -40,8 +46,7 @@ fn foo(_1: T, _2: i32) -> (i32, T) { StorageLive(_7); // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9 StorageLive(_8); // scope 1 at $DIR/inline_closure_captures.rs:+2:7: +2:8 _8 = _2; // scope 1 at $DIR/inline_closure_captures.rs:+2:7: +2:8 - Deinit(_7); // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9 - (_7.0: i32) = move _8; // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9 + _7 = (move _8,); // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9 StorageLive(_9); // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9 _9 = move (_7.0: i32); // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9 StorageLive(_10); // scope 2 at $DIR/inline_closure_captures.rs:+1:19: +1:20 @@ -50,9 +55,7 @@ fn foo(_1: T, _2: i32) -> (i32, T) { StorageLive(_11); // scope 2 at $DIR/inline_closure_captures.rs:+1:22: +1:23 _13 = deref_copy ((*_6).1: &T); // scope 2 at $DIR/inline_closure_captures.rs:+1:22: +1:23 _11 = (*_13); // scope 2 at $DIR/inline_closure_captures.rs:+1:22: +1:23 - Deinit(_0); // scope 2 at $DIR/inline_closure_captures.rs:+1:18: +1:24 - (_0.0: i32) = move _10; // scope 2 at $DIR/inline_closure_captures.rs:+1:18: +1:24 - (_0.1: T) = move _11; // scope 2 at $DIR/inline_closure_captures.rs:+1:18: +1:24 + _0 = (move _10, move _11); // scope 2 at $DIR/inline_closure_captures.rs:+1:18: +1:24 StorageDead(_11); // scope 2 at $DIR/inline_closure_captures.rs:+1:23: +1:24 StorageDead(_10); // scope 2 at $DIR/inline_closure_captures.rs:+1:23: +1:24 StorageDead(_9); // scope 1 at $DIR/inline_closure_captures.rs:+2:5: +2:9 diff --git a/tests/mir-opt/inline/inline_diverging.h.Inline.diff b/tests/mir-opt/inline/inline_diverging.h.Inline.diff index f82fcf4c8212..e1b2f7dbf358 100644 --- a/tests/mir-opt/inline/inline_diverging.h.Inline.diff +++ b/tests/mir-opt/inline/inline_diverging.h.Inline.diff @@ -48,9 +48,7 @@ + StorageDead(_6); // scope 2 at $DIR/inline_diverging.rs:28:15: 28:16 + StorageLive(_8); // scope 3 at $DIR/inline_diverging.rs:29:6: 29:7 + _8 = move _3; // scope 3 at $DIR/inline_diverging.rs:29:6: 29:7 -+ Deinit(_1); // scope 3 at $DIR/inline_diverging.rs:29:5: 29:11 -+ (_1.0: !) = move _8; // scope 3 at $DIR/inline_diverging.rs:29:5: 29:11 -+ (_1.1: !) = move _9; // scope 3 at $DIR/inline_diverging.rs:29:5: 29:11 ++ _1 = (move _8, move _9); // scope 3 at $DIR/inline_diverging.rs:29:5: 29:11 + StorageDead(_8); // scope 3 at $DIR/inline_diverging.rs:29:10: 29:11 + StorageDead(_3); // scope 1 at $DIR/inline_diverging.rs:30:1: 30:2 + drop(_2) -> bb2; // scope 1 at $DIR/inline_diverging.rs:30:1: 30:2 diff --git a/tests/mir-opt/inline/inline_generator.main.Inline.diff b/tests/mir-opt/inline/inline_generator.main.Inline.diff index 57574acf9235..95d649f89ba6 100644 --- a/tests/mir-opt/inline/inline_generator.main.Inline.diff +++ b/tests/mir-opt/inline/inline_generator.main.Inline.diff @@ -44,8 +44,17 @@ - } - - bb1: { -+ Deinit(_4); // scope 2 at $DIR/inline_generator.rs:15:5: 15:41 -+ discriminant(_4) = 0; // scope 2 at $DIR/inline_generator.rs:15:5: 15:41 ++ _4 = [generator@$DIR/inline_generator.rs:15:5: 15:8 (#0)]; // scope 2 at $DIR/inline_generator.rs:15:5: 15:41 ++ // generator ++ // + def_id: DefId(0:7 ~ inline_generator[ea31]::g::{closure#0}) ++ // + substs: [ ++ // bool, ++ // i32, ++ // bool, ++ // {bool, i32}, ++ // (), ++ // ] ++ // + movability: Movable _3 = &mut _4; // scope 0 at $DIR/inline_generator.rs:+1:23: +1:31 - _2 = Pin::<&mut [generator@$DIR/inline_generator.rs:15:5: 15:8]>::new(move _3) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/inline_generator.rs:+1:14: +1:32 - // mir::Constant @@ -59,8 +68,7 @@ + _5 = move _3; // scope 4 at $SRC_DIR/core/src/pin.rs:LL:COL + StorageLive(_6); // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL + _6 = move _5; // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL -+ Deinit(_2); // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL -+ (_2.0: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]) = move _6; // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL ++ _2 = Pin::<&mut [generator@$DIR/inline_generator.rs:15:5: 15:8]> { pointer: move _6 }; // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL + StorageDead(_6); // scope 5 at $SRC_DIR/core/src/pin.rs:LL:COL + StorageDead(_5); // scope 4 at $SRC_DIR/core/src/pin.rs:LL:COL StorageDead(_3); // scope 0 at $DIR/inline_generator.rs:+1:31: +1:32 @@ -106,9 +114,7 @@ + } + + bb6: { -+ Deinit(_1); // scope 6 at $DIR/inline_generator.rs:15:11: 15:39 -+ ((_1 as Yielded).0: i32) = move _8; // scope 6 at $DIR/inline_generator.rs:15:11: 15:39 -+ discriminant(_1) = 0; // scope 6 at $DIR/inline_generator.rs:15:11: 15:39 ++ _1 = GeneratorState::::Yielded(move _8); // scope 6 at $DIR/inline_generator.rs:15:11: 15:39 + _11 = deref_copy (_2.0: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]); // scope 6 at $DIR/inline_generator.rs:15:11: 15:39 + discriminant((*_11)) = 3; // scope 6 at $DIR/inline_generator.rs:15:11: 15:39 + goto -> bb1; // scope 0 at $DIR/inline_generator.rs:15:11: 15:39 @@ -117,9 +123,7 @@ + bb7: { + StorageLive(_8); // scope 6 at $DIR/inline_generator.rs:15:5: 15:41 + StorageDead(_8); // scope 6 at $DIR/inline_generator.rs:15:38: 15:39 -+ Deinit(_1); // scope 6 at $DIR/inline_generator.rs:15:41: 15:41 -+ ((_1 as Complete).0: bool) = _7; // scope 6 at $DIR/inline_generator.rs:15:41: 15:41 -+ discriminant(_1) = 1; // scope 6 at $DIR/inline_generator.rs:15:41: 15:41 ++ _1 = GeneratorState::::Complete(_7); // scope 6 at $DIR/inline_generator.rs:15:41: 15:41 + _12 = deref_copy (_2.0: &mut [generator@$DIR/inline_generator.rs:15:5: 15:8]); // scope 6 at $DIR/inline_generator.rs:15:41: 15:41 + discriminant((*_12)) = 1; // scope 6 at $DIR/inline_generator.rs:15:41: 15:41 + goto -> bb1; // scope 0 at $DIR/inline_generator.rs:15:41: 15:41 diff --git a/tests/mir-opt/inline/inline_into_box_place.main.Inline.diff b/tests/mir-opt/inline/inline_into_box_place.main.Inline.diff index a28da146e378..a1cbf0d3e0dd 100644 --- a/tests/mir-opt/inline/inline_into_box_place.main.Inline.diff +++ b/tests/mir-opt/inline/inline_into_box_place.main.Inline.diff @@ -51,9 +51,7 @@ + // + span: $SRC_DIR/alloc/src/vec/mod.rs:LL:COL + // + user_ty: UserType(0) + // + literal: Const { ty: alloc::raw_vec::RawVec, val: Unevaluated(alloc::raw_vec::RawVec::::NEW, [u32], None) } -+ Deinit(_9); // scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL -+ (_9.0: alloc::raw_vec::RawVec) = move _10; // scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL -+ (_9.1: usize) = const 0_usize; // scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL ++ _9 = Vec:: { buf: move _10, len: const 0_usize }; // scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL + StorageDead(_10); // scope 3 at $SRC_DIR/alloc/src/vec/mod.rs:LL:COL + (*_8) = move _9; // scope 0 at $DIR/inline_into_box_place.rs:+1:33: +1:43 + StorageDead(_9); // scope 0 at $DIR/inline_into_box_place.rs:+1:33: +1:43 diff --git a/tests/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir b/tests/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir index d99ae1a6c7c8..4dd1aad489dd 100644 --- a/tests/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir +++ b/tests/mir-opt/inline/issue_76997_inline_scopes_parenting.main.Inline.after.mir @@ -20,14 +20,20 @@ fn main() -> () { bb0: { StorageLive(_1); // scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:9: +1:10 - Deinit(_1); // scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:13: +1:33 + _1 = [closure@$DIR/issue_76997_inline_scopes_parenting.rs:5:13: 5:16]; // scope 0 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:13: +1:33 + // closure + // + def_id: DefId(0:4 ~ issue_76997_inline_scopes_parenting[bc59]::main::{closure#0}) + // + substs: [ + // i8, + // extern "rust-call" fn(((),)), + // (), + // ] StorageLive(_2); // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:6 _2 = &_1; // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:6 StorageLive(_3); // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10 StorageLive(_4); // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:7: +2:9 - Deinit(_4); // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:7: +2:9 - Deinit(_3); // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10 - (_3.0: ()) = move _4; // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10 + _4 = (); // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:7: +2:9 + _3 = (move _4,); // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10 StorageLive(_5); // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10 _5 = move (_3.0: ()); // scope 1 at $DIR/issue_76997_inline_scopes_parenting.rs:+2:5: +2:10 StorageLive(_6); // scope 2 at $DIR/issue_76997_inline_scopes_parenting.rs:+1:23: +1:24 diff --git a/tests/mir-opt/inline/issue_78442.bar.Inline.diff b/tests/mir-opt/inline/issue_78442.bar.Inline.diff index 51a98465fd9a..aa62e4a165e1 100644 --- a/tests/mir-opt/inline/issue_78442.bar.Inline.diff +++ b/tests/mir-opt/inline/issue_78442.bar.Inline.diff @@ -25,7 +25,7 @@ bb1: { _3 = &_4; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15 StorageLive(_5); // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17 - Deinit(_5); // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17 + _5 = (); // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17 - _2 = >::call(move _3, move _5) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17 - // mir::Constant - // + span: $DIR/issue_78442.rs:11:5: 11:15 diff --git a/tests/mir-opt/inline/issue_78442.bar.RevealAll.diff b/tests/mir-opt/inline/issue_78442.bar.RevealAll.diff index e47466c5e804..21055c6bfb57 100644 --- a/tests/mir-opt/inline/issue_78442.bar.RevealAll.diff +++ b/tests/mir-opt/inline/issue_78442.bar.RevealAll.diff @@ -24,7 +24,7 @@ bb1: { _3 = &_4; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:15 StorageLive(_5); // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17 - Deinit(_5); // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17 + _5 = (); // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17 - _2 = >::call(move _3, move _5) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17 + _2 = >::call(move _3, move _5) -> [return: bb2, unwind: bb4]; // scope 0 at $DIR/issue_78442.rs:+4:5: +4:17 // mir::Constant diff --git a/tests/mir-opt/issue_101973.inner.ConstProp.diff b/tests/mir-opt/issue_101973.inner.ConstProp.diff index 30bf2c0684e5..002392c5cf81 100644 --- a/tests/mir-opt/issue_101973.inner.ConstProp.diff +++ b/tests/mir-opt/issue_101973.inner.ConstProp.diff @@ -33,7 +33,6 @@ bb0: { StorageLive(_2); // scope 0 at $DIR/issue_101973.rs:+1:5: +1:65 StorageLive(_3); // scope 0 at $DIR/issue_101973.rs:+1:5: +1:58 - StorageLive(_4); // scope 0 at $DIR/issue_101973.rs:+1:5: +1:17 StorageLive(_12); // scope 2 at $DIR/issue_101973.rs:7:12: 7:27 StorageLive(_13); // scope 2 at $DIR/issue_101973.rs:7:12: 7:20 _14 = CheckedShr(_1, const 0_i32); // scope 2 at $DIR/issue_101973.rs:7:12: 7:20 @@ -63,7 +62,6 @@ StorageDead(_13); // scope 2 at $DIR/issue_101973.rs:7:26: 7:27 _4 = BitOr(const 0_u32, move _12); // scope 2 at $DIR/issue_101973.rs:7:5: 7:27 StorageDead(_12); // scope 2 at $DIR/issue_101973.rs:7:26: 7:27 - StorageLive(_6); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:57 StorageLive(_7); // scope 0 at $DIR/issue_101973.rs:+1:31: +1:52 StorageLive(_8); // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45 _10 = CheckedShr(_1, const 8_i32); // scope 0 at $DIR/issue_101973.rs:+1:32: +1:45 diff --git a/tests/mir-opt/issue_76432.test.SimplifyComparisonIntegral.diff b/tests/mir-opt/issue_76432.test.SimplifyComparisonIntegral.diff index c14780052fb0..cc4f7cc06991 100644 --- a/tests/mir-opt/issue_76432.test.SimplifyComparisonIntegral.diff +++ b/tests/mir-opt/issue_76432.test.SimplifyComparisonIntegral.diff @@ -29,7 +29,6 @@ bb0: { StorageLive(_2); // scope 0 at $DIR/issue_76432.rs:+1:9: +1:10 - StorageLive(_4); // scope 0 at $DIR/issue_76432.rs:+1:19: +1:29 StorageLive(_5); // scope 0 at $DIR/issue_76432.rs:+1:20: +1:29 _5 = [_1, _1, _1]; // scope 0 at $DIR/issue_76432.rs:+1:20: +1:29 _4 = &_5; // scope 0 at $DIR/issue_76432.rs:+1:19: +1:29 diff --git a/tests/mir-opt/issues/issue_75439.foo.MatchBranchSimplification.diff b/tests/mir-opt/issues/issue_75439.foo.MatchBranchSimplification.diff index 93804780371c..bcda12880456 100644 --- a/tests/mir-opt/issues/issue_75439.foo.MatchBranchSimplification.diff +++ b/tests/mir-opt/issues/issue_75439.foo.MatchBranchSimplification.diff @@ -67,17 +67,14 @@ bb7: { StorageDead(_6); // scope 4 at $DIR/issue_75439.rs:+5:35: +5:36 - Deinit(_0); // scope 3 at $DIR/issue_75439.rs:+5:9: +5:39 - ((_0 as Some).0: [u8; 4]) = move _5; // scope 3 at $DIR/issue_75439.rs:+5:9: +5:39 - discriminant(_0) = 1; // scope 3 at $DIR/issue_75439.rs:+5:9: +5:39 + _0 = Option::<[u8; 4]>::Some(move _5); // scope 3 at $DIR/issue_75439.rs:+5:9: +5:39 StorageDead(_5); // scope 3 at $DIR/issue_75439.rs:+5:38: +5:39 StorageDead(_4); // scope 1 at $DIR/issue_75439.rs:+6:5: +6:6 goto -> bb9; // scope 1 at $DIR/issue_75439.rs:+4:5: +8:6 } bb8: { - Deinit(_0); // scope 1 at $DIR/issue_75439.rs:+7:9: +7:13 - discriminant(_0) = 0; // scope 1 at $DIR/issue_75439.rs:+7:9: +7:13 + _0 = Option::<[u8; 4]>::None; // scope 1 at $DIR/issue_75439.rs:+7:9: +7:13 goto -> bb9; // scope 1 at $DIR/issue_75439.rs:+4:5: +8:6 } diff --git a/tests/mir-opt/lower_intrinsics.f_copy_nonoverlapping.LowerIntrinsics.diff b/tests/mir-opt/lower_intrinsics.f_copy_nonoverlapping.LowerIntrinsics.diff index ec15fd1ef74d..5c972a00e464 100644 --- a/tests/mir-opt/lower_intrinsics.f_copy_nonoverlapping.LowerIntrinsics.diff +++ b/tests/mir-opt/lower_intrinsics.f_copy_nonoverlapping.LowerIntrinsics.diff @@ -25,9 +25,9 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/lower_intrinsics.rs:+1:9: +1:12 - Deinit(_1); // scope 0 at $DIR/lower_intrinsics.rs:+1:15: +1:17 + _1 = (); // scope 0 at $DIR/lower_intrinsics.rs:+1:15: +1:17 StorageLive(_2); // scope 1 at $DIR/lower_intrinsics.rs:+2:9: +2:16 - Deinit(_2); // scope 1 at $DIR/lower_intrinsics.rs:+2:19: +2:21 + _2 = (); // scope 1 at $DIR/lower_intrinsics.rs:+2:19: +2:21 StorageLive(_3); // scope 3 at $DIR/lower_intrinsics.rs:+4:9: +4:95 StorageLive(_4); // scope 3 at $DIR/lower_intrinsics.rs:+4:29: +4:59 StorageLive(_5); // scope 3 at $DIR/lower_intrinsics.rs:+4:29: +4:45 diff --git a/tests/mir-opt/matches_reduce_branches.bar.MatchBranchSimplification.diff b/tests/mir-opt/matches_reduce_branches.bar.MatchBranchSimplification.diff index be91b0bfe682..92f8d4e14abb 100644 --- a/tests/mir-opt/matches_reduce_branches.bar.MatchBranchSimplification.diff +++ b/tests/mir-opt/matches_reduce_branches.bar.MatchBranchSimplification.diff @@ -41,7 +41,7 @@ - _3 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:+16:13: +16:22 - _4 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:+17:13: +17:22 - _5 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:+18:13: +18:21 -- Deinit(_6); // scope 4 at $DIR/matches_reduce_branches.rs:+19:13: +19:15 +- _6 = (); // scope 4 at $DIR/matches_reduce_branches.rs:+19:13: +19:15 - goto -> bb3; // scope 4 at $DIR/matches_reduce_branches.rs:+19:13: +19:15 - } - @@ -54,7 +54,7 @@ + _3 = Eq(_11, const 7_i32); // scope 4 at $DIR/matches_reduce_branches.rs:+9:13: +9:21 _4 = const false; // scope 4 at $DIR/matches_reduce_branches.rs:+10:13: +10:22 _5 = const true; // scope 4 at $DIR/matches_reduce_branches.rs:+11:13: +11:21 - Deinit(_6); // scope 4 at $DIR/matches_reduce_branches.rs:+12:13: +12:15 + _6 = (); // scope 4 at $DIR/matches_reduce_branches.rs:+12:13: +12:15 - goto -> bb3; // scope 4 at $DIR/matches_reduce_branches.rs:+12:13: +12:15 - } - @@ -69,11 +69,7 @@ _9 = _4; // scope 4 at $DIR/matches_reduce_branches.rs:+23:12: +23:13 StorageLive(_10); // scope 4 at $DIR/matches_reduce_branches.rs:+23:15: +23:16 _10 = _5; // scope 4 at $DIR/matches_reduce_branches.rs:+23:15: +23:16 - Deinit(_0); // scope 4 at $DIR/matches_reduce_branches.rs:+23:5: +23:17 - (_0.0: bool) = move _7; // scope 4 at $DIR/matches_reduce_branches.rs:+23:5: +23:17 - (_0.1: bool) = move _8; // scope 4 at $DIR/matches_reduce_branches.rs:+23:5: +23:17 - (_0.2: bool) = move _9; // scope 4 at $DIR/matches_reduce_branches.rs:+23:5: +23:17 - (_0.3: bool) = move _10; // scope 4 at $DIR/matches_reduce_branches.rs:+23:5: +23:17 + _0 = (move _7, move _8, move _9, move _10); // scope 4 at $DIR/matches_reduce_branches.rs:+23:5: +23:17 StorageDead(_10); // scope 4 at $DIR/matches_reduce_branches.rs:+23:16: +23:17 StorageDead(_9); // scope 4 at $DIR/matches_reduce_branches.rs:+23:16: +23:17 StorageDead(_8); // scope 4 at $DIR/matches_reduce_branches.rs:+23:16: +23:17 diff --git a/tests/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.diff b/tests/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.diff index aa8092ece663..0580f73341d2 100644 --- a/tests/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.diff +++ b/tests/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.diff @@ -34,7 +34,7 @@ - } - - bb4: { - Deinit(_0); // scope 0 at $DIR/matches_reduce_branches.rs:+2:9: +2:11 + _0 = (); // scope 0 at $DIR/matches_reduce_branches.rs:+2:9: +2:11 - goto -> bb6; // scope 0 at $DIR/matches_reduce_branches.rs:+1:5: +3:6 + goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:+1:5: +3:6 } diff --git a/tests/mir-opt/matches_reduce_branches.match_nested_if.MatchBranchSimplification.diff b/tests/mir-opt/matches_reduce_branches.match_nested_if.MatchBranchSimplification.diff index 193104dd30e7..20e8ef2f7202 100644 --- a/tests/mir-opt/matches_reduce_branches.match_nested_if.MatchBranchSimplification.diff +++ b/tests/mir-opt/matches_reduce_branches.match_nested_if.MatchBranchSimplification.diff @@ -20,7 +20,7 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/matches_reduce_branches.rs:+1:9: +1:12 StorageLive(_2); // scope 0 at $DIR/matches_reduce_branches.rs:+1:21: +1:23 - Deinit(_2); // scope 0 at $DIR/matches_reduce_branches.rs:+1:21: +1:23 + _2 = (); // scope 0 at $DIR/matches_reduce_branches.rs:+1:21: +1:23 StorageLive(_3); // scope 0 at $DIR/matches_reduce_branches.rs:+2:15: +6:10 StorageLive(_4); // scope 0 at $DIR/matches_reduce_branches.rs:+2:18: +2:76 StorageLive(_5); // scope 0 at $DIR/matches_reduce_branches.rs:+2:21: +2:52 diff --git a/tests/mir-opt/packed_struct_drop_aligned.main.SimplifyCfg-elaborate-drops.after.mir b/tests/mir-opt/packed_struct_drop_aligned.main.SimplifyCfg-elaborate-drops.after.mir index e522534867d5..210f178a0a9e 100644 --- a/tests/mir-opt/packed_struct_drop_aligned.main.SimplifyCfg-elaborate-drops.after.mir +++ b/tests/mir-opt/packed_struct_drop_aligned.main.SimplifyCfg-elaborate-drops.after.mir @@ -16,20 +16,15 @@ fn main() -> () { StorageLive(_1); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:9: +1:14 StorageLive(_2); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:24: +1:42 StorageLive(_3); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:32: +1:41 - Deinit(_3); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:32: +1:41 - (_3.0: usize) = const 0_usize; // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:32: +1:41 - Deinit(_2); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:24: +1:42 - (_2.0: Droppy) = move _3; // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:24: +1:42 + _3 = Droppy(const 0_usize); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:32: +1:41 + _2 = Aligned(move _3); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:24: +1:42 StorageDead(_3); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:41: +1:42 - Deinit(_1); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:17: +1:43 - (_1.0: Aligned) = move _2; // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:17: +1:43 + _1 = Packed(move _2); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:17: +1:43 StorageDead(_2); // scope 0 at $DIR/packed_struct_drop_aligned.rs:+1:42: +1:43 StorageLive(_4); // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:11: +2:29 StorageLive(_5); // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:19: +2:28 - Deinit(_5); // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:19: +2:28 - (_5.0: usize) = const 0_usize; // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:19: +2:28 - Deinit(_4); // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:11: +2:29 - (_4.0: Droppy) = move _5; // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:11: +2:29 + _5 = Droppy(const 0_usize); // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:19: +2:28 + _4 = Aligned(move _5); // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:11: +2:29 StorageDead(_5); // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:28: +2:29 StorageLive(_6); // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:5: +2:8 _6 = move (_1.0: Aligned); // scope 1 at $DIR/packed_struct_drop_aligned.rs:+2:5: +2:8 diff --git a/tests/mir-opt/remove_storage_markers.main.RemoveStorageMarkers.diff b/tests/mir-opt/remove_storage_markers.main.RemoveStorageMarkers.diff index ed1d0b87f603..a8dd91efc379 100644 --- a/tests/mir-opt/remove_storage_markers.main.RemoveStorageMarkers.diff +++ b/tests/mir-opt/remove_storage_markers.main.RemoveStorageMarkers.diff @@ -31,9 +31,7 @@ _1 = const 0_i32; // scope 0 at $DIR/remove_storage_markers.rs:+1:19: +1:20 - StorageLive(_2); // scope 1 at $DIR/remove_storage_markers.rs:+2:14: +2:19 - StorageLive(_3); // scope 1 at $DIR/remove_storage_markers.rs:+2:14: +2:19 - Deinit(_3); // scope 1 at $DIR/remove_storage_markers.rs:+2:14: +2:19 - (_3.0: i32) = const 0_i32; // scope 1 at $DIR/remove_storage_markers.rs:+2:14: +2:19 - (_3.1: i32) = const 10_i32; // scope 1 at $DIR/remove_storage_markers.rs:+2:14: +2:19 + _3 = std::ops::Range:: { start: const 0_i32, end: const 10_i32 }; // scope 1 at $DIR/remove_storage_markers.rs:+2:14: +2:19 _2 = as IntoIterator>::into_iter(move _3) -> bb1; // scope 1 at $DIR/remove_storage_markers.rs:+2:14: +2:19 // mir::Constant // + span: $DIR/remove_storage_markers.rs:10:14: 10:19 diff --git a/tests/mir-opt/remove_zsts.get_union.PreCodegen.after.mir b/tests/mir-opt/remove_zsts.get_union.PreCodegen.after.mir index 12e914e25e0c..af34bc5edb7f 100644 --- a/tests/mir-opt/remove_zsts.get_union.PreCodegen.after.mir +++ b/tests/mir-opt/remove_zsts.get_union.PreCodegen.after.mir @@ -2,9 +2,12 @@ fn get_union() -> Foo { let mut _0: Foo; // return place in scope 0 at $DIR/remove_zsts.rs:+0:19: +0:22 + let mut _1: (); // in scope 0 at $DIR/remove_zsts.rs:+1:14: +1:16 bb0: { - Deinit(_0); // scope 0 at $DIR/remove_zsts.rs:+1:5: +1:18 + StorageLive(_1); // scope 0 at $DIR/remove_zsts.rs:+1:14: +1:16 + _0 = Foo { x: move _1 }; // scope 0 at $DIR/remove_zsts.rs:+1:5: +1:18 + StorageDead(_1); // scope 0 at $DIR/remove_zsts.rs:+1:17: +1:18 return; // scope 0 at $DIR/remove_zsts.rs:+2:2: +2:2 } } diff --git a/tests/mir-opt/remove_zsts.get_union.RemoveZsts.diff b/tests/mir-opt/remove_zsts.get_union.RemoveZsts.diff index 169b7b1054b4..0af29b2babc2 100644 --- a/tests/mir-opt/remove_zsts.get_union.RemoveZsts.diff +++ b/tests/mir-opt/remove_zsts.get_union.RemoveZsts.diff @@ -7,11 +7,9 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/remove_zsts.rs:+1:14: +1:16 -- Deinit(_1); // scope 0 at $DIR/remove_zsts.rs:+1:14: +1:16 +- _1 = (); // scope 0 at $DIR/remove_zsts.rs:+1:14: +1:16 + nop; // scope 0 at $DIR/remove_zsts.rs:+1:14: +1:16 - Deinit(_0); // scope 0 at $DIR/remove_zsts.rs:+1:5: +1:18 -- (_0.0: ()) = move _1; // scope 0 at $DIR/remove_zsts.rs:+1:5: +1:18 -+ nop; // scope 0 at $DIR/remove_zsts.rs:+1:5: +1:18 + _0 = Foo { x: move _1 }; // scope 0 at $DIR/remove_zsts.rs:+1:5: +1:18 StorageDead(_1); // scope 0 at $DIR/remove_zsts.rs:+1:17: +1:18 return; // scope 0 at $DIR/remove_zsts.rs:+2:2: +2:2 } diff --git a/tests/mir-opt/retag.array_casts.SimplifyCfg-elaborate-drops.after.mir b/tests/mir-opt/retag.array_casts.SimplifyCfg-elaborate-drops.after.mir index 19b726e74845..3b479710b4f2 100644 --- a/tests/mir-opt/retag.array_casts.SimplifyCfg-elaborate-drops.after.mir +++ b/tests/mir-opt/retag.array_casts.SimplifyCfg-elaborate-drops.after.mir @@ -122,9 +122,7 @@ fn array_casts() -> () { // + literal: Const { ty: &usize, val: Unevaluated(array_casts, [], Some(promoted[0])) } Retag(_35); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _18 = &(*_35); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - Deinit(_13); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - (_13.0: &usize) = move _14; // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - (_13.1: &usize) = move _18; // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _13 = (move _14, move _18); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL Retag(_13); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_18); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_14); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL @@ -150,8 +148,7 @@ fn array_casts() -> () { bb3: { StorageLive(_27); // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - Deinit(_27); // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - discriminant(_27) = 0; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _27 = core::panicking::AssertKind::Eq; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_28); // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_29); // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _29 = move _27; // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL @@ -164,8 +161,7 @@ fn array_casts() -> () { _33 = &(*_21); // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _32 = &(*_33); // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_34); // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - Deinit(_34); // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL - discriminant(_34) = 0; // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL + _34 = Option::>::None; // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL Retag(_34); // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _28 = core::panicking::assert_failed::(move _29, move _30, move _32, move _34); // scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant diff --git a/tests/mir-opt/retag.main.SimplifyCfg-elaborate-drops.after.mir b/tests/mir-opt/retag.main.SimplifyCfg-elaborate-drops.after.mir index b853e4505417..d7b6d64b6b7b 100644 --- a/tests/mir-opt/retag.main.SimplifyCfg-elaborate-drops.after.mir +++ b/tests/mir-opt/retag.main.SimplifyCfg-elaborate-drops.after.mir @@ -62,8 +62,7 @@ fn main() -> () { StorageLive(_3); // scope 1 at $DIR/retag.rs:+3:13: +3:14 StorageLive(_4); // scope 1 at $DIR/retag.rs:+3:17: +3:36 StorageLive(_5); // scope 1 at $DIR/retag.rs:+3:17: +3:24 - Deinit(_5); // scope 1 at $DIR/retag.rs:+3:17: +3:24 - (_5.0: i32) = const 0_i32; // scope 1 at $DIR/retag.rs:+3:17: +3:24 + _5 = Test(const 0_i32); // scope 1 at $DIR/retag.rs:+3:17: +3:24 _4 = &_5; // scope 1 at $DIR/retag.rs:+3:17: +3:36 StorageLive(_6); // scope 1 at $DIR/retag.rs:+3:29: +3:35 StorageLive(_7); // scope 1 at $DIR/retag.rs:+3:29: +3:35 @@ -107,7 +106,14 @@ fn main() -> () { StorageDead(_2); // scope 1 at $DIR/retag.rs:+8:5: +8:6 StorageLive(_13); // scope 1 at $DIR/retag.rs:+11:9: +11:10 StorageLive(_14); // scope 1 at $DIR/retag.rs:+11:31: +14:6 - Deinit(_14); // scope 1 at $DIR/retag.rs:+11:31: +14:6 + _14 = [closure@main::{closure#0}]; // scope 1 at $DIR/retag.rs:+11:31: +14:6 + // closure + // + def_id: DefId(0:14 ~ retag[4622]::main::{closure#0}) + // + substs: [ + // i8, + // for<'a> extern "rust-call" fn((&'a i32,)) -> &'a i32, + // (), + // ] Retag(_14); // scope 1 at $DIR/retag.rs:+11:31: +14:6 _13 = move _14 as for<'a> fn(&'a i32) -> &'a i32 (Pointer(ClosureFnPointer(Normal))); // scope 1 at $DIR/retag.rs:+11:31: +14:6 StorageDead(_14); // scope 1 at $DIR/retag.rs:+11:47: +11:48 @@ -129,8 +135,7 @@ fn main() -> () { StorageLive(_19); // scope 7 at $DIR/retag.rs:+18:5: +18:24 StorageLive(_20); // scope 7 at $DIR/retag.rs:+18:5: +18:24 StorageLive(_21); // scope 7 at $DIR/retag.rs:+18:5: +18:12 - Deinit(_21); // scope 7 at $DIR/retag.rs:+18:5: +18:12 - (_21.0: i32) = const 0_i32; // scope 7 at $DIR/retag.rs:+18:5: +18:12 + _21 = Test(const 0_i32); // scope 7 at $DIR/retag.rs:+18:5: +18:12 _20 = &_21; // scope 7 at $DIR/retag.rs:+18:5: +18:24 StorageLive(_22); // scope 7 at $DIR/retag.rs:+18:21: +18:23 StorageLive(_23); // scope 7 at $DIR/retag.rs:+18:21: +18:23 diff --git a/tests/mir-opt/separate_const_switch.identity.SeparateConstSwitch.diff b/tests/mir-opt/separate_const_switch.identity.SeparateConstSwitch.diff index e57544e09e2a..cb89d6340760 100644 --- a/tests/mir-opt/separate_const_switch.identity.SeparateConstSwitch.diff +++ b/tests/mir-opt/separate_const_switch.identity.SeparateConstSwitch.diff @@ -56,36 +56,31 @@ StorageLive(_4); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:9 _4 = _1; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:9 _10 = discriminant(_4); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL -- switchInt(move _10) -> [0: bb7, 1: bb5, otherwise: bb6]; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL -+ switchInt(move _10) -> [0: bb6, 1: bb4, otherwise: bb5]; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL + switchInt(move _10) -> [0: bb7, 1: bb5, otherwise: bb6]; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL } bb1: { -- StorageDead(_4); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 -- _5 = discriminant(_3); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 -- switchInt(move _5) -> [0: bb2, 1: bb4, otherwise: bb3]; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 -- } -- -- bb2: { + StorageDead(_4); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 + _5 = discriminant(_3); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 + switchInt(move _5) -> [0: bb2, 1: bb4, otherwise: bb3]; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 + } + + bb2: { StorageLive(_9); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 _9 = ((_3 as Continue).0: i32); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 _2 = _9; // scope 4 at $DIR/separate_const_switch.rs:+1:8: +1:10 StorageDead(_9); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 - Deinit(_0); // scope 0 at $DIR/separate_const_switch.rs:+1:5: +1:11 - ((_0 as Ok).0: i32) = move _2; // scope 0 at $DIR/separate_const_switch.rs:+1:5: +1:11 - discriminant(_0) = 0; // scope 0 at $DIR/separate_const_switch.rs:+1:5: +1:11 + _0 = Result::::Ok(move _2); // scope 0 at $DIR/separate_const_switch.rs:+1:5: +1:11 StorageDead(_2); // scope 0 at $DIR/separate_const_switch.rs:+1:10: +1:11 StorageDead(_3); // scope 0 at $DIR/separate_const_switch.rs:+2:1: +2:2 return; // scope 0 at $DIR/separate_const_switch.rs:+2:2: +2:2 } -- bb3: { -+ bb2: { + bb3: { unreachable; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 } -- bb4: { -+ bb3: { + bb4: { StorageLive(_6); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 _6 = ((_3 as Break).0: std::result::Result); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 StorageLive(_8); // scope 2 at $DIR/separate_const_switch.rs:+1:9: +1:10 @@ -97,9 +92,7 @@ _18 = move _16; // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL _17 = move _18; // scope 10 at $SRC_DIR/core/src/convert/mod.rs:LL:COL StorageDead(_18); // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL - Deinit(_0); // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL - ((_0 as Err).0: i32) = move _17; // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL - discriminant(_0) = 1; // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL + _0 = Result::::Err(move _17); // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_17); // scope 9 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_16); // scope 8 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_8); // scope 2 at $DIR/separate_const_switch.rs:+1:9: +1:10 @@ -109,48 +102,33 @@ return; // scope 0 at $DIR/separate_const_switch.rs:+2:2: +2:2 } -- bb5: { -+ bb4: { + bb5: { StorageLive(_13); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL _13 = move ((_4 as Err).0: i32); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL StorageLive(_14); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL StorageLive(_15); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL _15 = move _13; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL - Deinit(_14); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL - ((_14 as Err).0: i32) = move _15; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL - discriminant(_14) = 1; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL + _14 = Result::::Err(move _15); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_15); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL - Deinit(_3); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL - ((_3 as Break).0: std::result::Result) = move _14; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL - discriminant(_3) = 1; // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL + _3 = ControlFlow::, i32>::Break(move _14); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_14); // scope 7 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_13); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL -- goto -> bb1; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL -+ StorageDead(_4); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 -+ _5 = discriminant(_3); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 -+ switchInt(move _5) -> [0: bb1, 1: bb3, otherwise: bb2]; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 + goto -> bb1; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL } -- bb6: { -+ bb5: { + bb6: { unreachable; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL } -- bb7: { -+ bb6: { + bb7: { StorageLive(_11); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL _11 = move ((_4 as Ok).0: i32); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL StorageLive(_12); // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL _12 = move _11; // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL - Deinit(_3); // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL - ((_3 as Continue).0: i32) = move _12; // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL - discriminant(_3) = 0; // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL + _3 = ControlFlow::, i32>::Continue(move _12); // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_12); // scope 6 at $SRC_DIR/core/src/result.rs:LL:COL StorageDead(_11); // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL -- goto -> bb1; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL -+ StorageDead(_4); // scope 0 at $DIR/separate_const_switch.rs:+1:9: +1:10 -+ _5 = discriminant(_3); // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 -+ switchInt(move _5) -> [0: bb1, 1: bb3, otherwise: bb2]; // scope 0 at $DIR/separate_const_switch.rs:+1:8: +1:10 + goto -> bb1; // scope 5 at $SRC_DIR/core/src/result.rs:LL:COL } } diff --git a/tests/mir-opt/separate_const_switch.too_complex.SeparateConstSwitch.diff b/tests/mir-opt/separate_const_switch.too_complex.SeparateConstSwitch.diff index 8cc0c6a18353..3c7e9dc61315 100644 --- a/tests/mir-opt/separate_const_switch.too_complex.SeparateConstSwitch.diff +++ b/tests/mir-opt/separate_const_switch.too_complex.SeparateConstSwitch.diff @@ -38,14 +38,10 @@ _6 = ((_1 as Err).0: usize); // scope 0 at $DIR/separate_const_switch.rs:+8:17: +8:18 StorageLive(_7); // scope 2 at $DIR/separate_const_switch.rs:+8:42: +8:43 _7 = _6; // scope 2 at $DIR/separate_const_switch.rs:+8:42: +8:43 - Deinit(_2); // scope 2 at $DIR/separate_const_switch.rs:+8:23: +8:44 - ((_2 as Break).0: usize) = move _7; // scope 2 at $DIR/separate_const_switch.rs:+8:23: +8:44 - discriminant(_2) = 1; // scope 2 at $DIR/separate_const_switch.rs:+8:23: +8:44 + _2 = ControlFlow::::Break(move _7); // scope 2 at $DIR/separate_const_switch.rs:+8:23: +8:44 StorageDead(_7); // scope 2 at $DIR/separate_const_switch.rs:+8:43: +8:44 StorageDead(_6); // scope 0 at $DIR/separate_const_switch.rs:+8:43: +8:44 -- goto -> bb4; // scope 0 at $DIR/separate_const_switch.rs:+8:43: +8:44 -+ _8 = discriminant(_2); // scope 0 at $DIR/separate_const_switch.rs:+5:11: +10:6 -+ switchInt(move _8) -> [0: bb6, 1: bb4, otherwise: bb5]; // scope 0 at $DIR/separate_const_switch.rs:+5:5: +10:6 + goto -> bb4; // scope 0 at $DIR/separate_const_switch.rs:+8:43: +8:44 } bb2: { @@ -57,53 +53,41 @@ _4 = ((_1 as Ok).0: i32); // scope 0 at $DIR/separate_const_switch.rs:+7:16: +7:17 StorageLive(_5); // scope 1 at $DIR/separate_const_switch.rs:+7:44: +7:45 _5 = _4; // scope 1 at $DIR/separate_const_switch.rs:+7:44: +7:45 - Deinit(_2); // scope 1 at $DIR/separate_const_switch.rs:+7:22: +7:46 - ((_2 as Continue).0: i32) = move _5; // scope 1 at $DIR/separate_const_switch.rs:+7:22: +7:46 - discriminant(_2) = 0; // scope 1 at $DIR/separate_const_switch.rs:+7:22: +7:46 + _2 = ControlFlow::::Continue(move _5); // scope 1 at $DIR/separate_const_switch.rs:+7:22: +7:46 StorageDead(_5); // scope 1 at $DIR/separate_const_switch.rs:+7:45: +7:46 StorageDead(_4); // scope 0 at $DIR/separate_const_switch.rs:+7:45: +7:46 -- goto -> bb4; // scope 0 at $DIR/separate_const_switch.rs:+7:45: +7:46 -- } -- -- bb4: { - _8 = discriminant(_2); // scope 0 at $DIR/separate_const_switch.rs:+5:11: +10:6 -- switchInt(move _8) -> [0: bb7, 1: bb5, otherwise: bb6]; // scope 0 at $DIR/separate_const_switch.rs:+5:5: +10:6 -+ switchInt(move _8) -> [0: bb6, 1: bb4, otherwise: bb5]; // scope 0 at $DIR/separate_const_switch.rs:+5:5: +10:6 + goto -> bb4; // scope 0 at $DIR/separate_const_switch.rs:+7:45: +7:46 } -- bb5: { -+ bb4: { + bb4: { + _8 = discriminant(_2); // scope 0 at $DIR/separate_const_switch.rs:+5:11: +10:6 + switchInt(move _8) -> [0: bb7, 1: bb5, otherwise: bb6]; // scope 0 at $DIR/separate_const_switch.rs:+5:5: +10:6 + } + + bb5: { StorageLive(_11); // scope 0 at $DIR/separate_const_switch.rs:+12:28: +12:29 _11 = ((_2 as Break).0: usize); // scope 0 at $DIR/separate_const_switch.rs:+12:28: +12:29 - Deinit(_0); // scope 4 at $DIR/separate_const_switch.rs:+12:34: +12:38 - discriminant(_0) = 0; // scope 4 at $DIR/separate_const_switch.rs:+12:34: +12:38 + _0 = Option::::None; // scope 4 at $DIR/separate_const_switch.rs:+12:34: +12:38 StorageDead(_11); // scope 0 at $DIR/separate_const_switch.rs:+12:37: +12:38 -- goto -> bb8; // scope 0 at $DIR/separate_const_switch.rs:+12:37: +12:38 -+ goto -> bb7; // scope 0 at $DIR/separate_const_switch.rs:+12:37: +12:38 + goto -> bb8; // scope 0 at $DIR/separate_const_switch.rs:+12:37: +12:38 } -- bb6: { -+ bb5: { + bb6: { unreachable; // scope 0 at $DIR/separate_const_switch.rs:+5:11: +10:6 } -- bb7: { -+ bb6: { + bb7: { StorageLive(_9); // scope 0 at $DIR/separate_const_switch.rs:+11:31: +11:32 _9 = ((_2 as Continue).0: i32); // scope 0 at $DIR/separate_const_switch.rs:+11:31: +11:32 StorageLive(_10); // scope 3 at $DIR/separate_const_switch.rs:+11:42: +11:43 _10 = _9; // scope 3 at $DIR/separate_const_switch.rs:+11:42: +11:43 - Deinit(_0); // scope 3 at $DIR/separate_const_switch.rs:+11:37: +11:44 - ((_0 as Some).0: i32) = move _10; // scope 3 at $DIR/separate_const_switch.rs:+11:37: +11:44 - discriminant(_0) = 1; // scope 3 at $DIR/separate_const_switch.rs:+11:37: +11:44 + _0 = Option::::Some(move _10); // scope 3 at $DIR/separate_const_switch.rs:+11:37: +11:44 StorageDead(_10); // scope 3 at $DIR/separate_const_switch.rs:+11:43: +11:44 StorageDead(_9); // scope 0 at $DIR/separate_const_switch.rs:+11:43: +11:44 -- goto -> bb8; // scope 0 at $DIR/separate_const_switch.rs:+11:43: +11:44 -+ goto -> bb7; // scope 0 at $DIR/separate_const_switch.rs:+11:43: +11:44 + goto -> bb8; // scope 0 at $DIR/separate_const_switch.rs:+11:43: +11:44 } -- bb8: { -+ bb7: { + bb8: { StorageDead(_2); // scope 0 at $DIR/separate_const_switch.rs:+14:1: +14:2 return; // scope 0 at $DIR/separate_const_switch.rs:+14:2: +14:2 } diff --git a/tests/mir-opt/simple_option_map_e2e.ezmap.PreCodegen.after.mir b/tests/mir-opt/simple_option_map_e2e.ezmap.PreCodegen.after.mir index 760f48d956d6..e338f15b4853 100644 --- a/tests/mir-opt/simple_option_map_e2e.ezmap.PreCodegen.after.mir +++ b/tests/mir-opt/simple_option_map_e2e.ezmap.PreCodegen.after.mir @@ -8,12 +8,12 @@ fn ezmap(_1: Option) -> Option { debug slf => _1; // in scope 1 at $DIR/simple_option_map_e2e.rs:2:17: 2:20 debug f => _2; // in scope 1 at $DIR/simple_option_map_e2e.rs:2:33: 2:34 let mut _3: isize; // in scope 1 at $DIR/simple_option_map_e2e.rs:7:9: 7:16 - let mut _4: i32; // in scope 1 at $DIR/simple_option_map_e2e.rs:7:25: 7:29 + let _4: i32; // in scope 1 at $DIR/simple_option_map_e2e.rs:7:14: 7:15 let mut _5: i32; // in scope 1 at $DIR/simple_option_map_e2e.rs:7:25: 7:29 scope 2 { - debug x => _5; // in scope 2 at $DIR/simple_option_map_e2e.rs:7:14: 7:15 + debug x => _4; // in scope 2 at $DIR/simple_option_map_e2e.rs:7:14: 7:15 scope 3 (inlined ezmap::{closure#0}) { // at $DIR/simple_option_map_e2e.rs:7:25: 7:29 - debug n => _5; // in scope 3 at $DIR/simple_option_map_e2e.rs:+1:13: +1:14 + debug n => _4; // in scope 3 at $DIR/simple_option_map_e2e.rs:+1:13: +1:14 } } } @@ -25,8 +25,7 @@ fn ezmap(_1: Option) -> Option { } bb1: { - Deinit(_0); // scope 1 at $DIR/simple_option_map_e2e.rs:8:17: 8:21 - discriminant(_0) = 0; // scope 1 at $DIR/simple_option_map_e2e.rs:8:17: 8:21 + _0 = Option::::None; // scope 1 at $DIR/simple_option_map_e2e.rs:8:17: 8:21 goto -> bb4; // scope 1 at $DIR/simple_option_map_e2e.rs:8:17: 8:21 } @@ -35,13 +34,11 @@ fn ezmap(_1: Option) -> Option { } bb3: { - _5 = move ((_1 as Some).0: i32); // scope 1 at $DIR/simple_option_map_e2e.rs:7:14: 7:15 - StorageLive(_4); // scope 2 at $DIR/simple_option_map_e2e.rs:7:25: 7:29 - _4 = Add(_5, const 1_i32); // scope 3 at $DIR/simple_option_map_e2e.rs:+1:16: +1:21 - Deinit(_0); // scope 2 at $DIR/simple_option_map_e2e.rs:7:20: 7:30 - ((_0 as Some).0: i32) = move _4; // scope 2 at $DIR/simple_option_map_e2e.rs:7:20: 7:30 - discriminant(_0) = 1; // scope 2 at $DIR/simple_option_map_e2e.rs:7:20: 7:30 - StorageDead(_4); // scope 2 at $DIR/simple_option_map_e2e.rs:7:29: 7:30 + _4 = move ((_1 as Some).0: i32); // scope 1 at $DIR/simple_option_map_e2e.rs:7:14: 7:15 + StorageLive(_5); // scope 2 at $DIR/simple_option_map_e2e.rs:7:25: 7:29 + _5 = Add(_4, const 1_i32); // scope 3 at $DIR/simple_option_map_e2e.rs:+1:16: +1:21 + _0 = Option::::Some(move _5); // scope 2 at $DIR/simple_option_map_e2e.rs:7:20: 7:30 + StorageDead(_5); // scope 2 at $DIR/simple_option_map_e2e.rs:7:29: 7:30 goto -> bb4; // scope 1 at $DIR/simple_option_map_e2e.rs:10:1: 10:2 } diff --git a/tests/mir-opt/simplify_locals.d1.SimplifyLocals-before-const-prop.diff b/tests/mir-opt/simplify_locals.d1.SimplifyLocals-before-const-prop.diff index 981738030186..946595e322e1 100644 --- a/tests/mir-opt/simplify_locals.d1.SimplifyLocals-before-const-prop.diff +++ b/tests/mir-opt/simplify_locals.d1.SimplifyLocals-before-const-prop.diff @@ -9,8 +9,7 @@ bb0: { - StorageLive(_1); // scope 0 at $DIR/simplify_locals.rs:+2:13: +2:17 -- Deinit(_1); // scope 0 at $DIR/simplify_locals.rs:+2:13: +2:17 -- discriminant(_1) = 0; // scope 0 at $DIR/simplify_locals.rs:+2:13: +2:17 +- _1 = E::A; // scope 0 at $DIR/simplify_locals.rs:+2:13: +2:17 - StorageDead(_1); // scope 0 at $DIR/simplify_locals.rs:+2:17: +2:18 _0 = const (); // scope 0 at $DIR/simplify_locals.rs:+0:9: +3:2 return; // scope 0 at $DIR/simplify_locals.rs:+3:2: +3:2 diff --git a/tests/mir-opt/simplify_locals.d2.SimplifyLocals-before-const-prop.diff b/tests/mir-opt/simplify_locals.d2.SimplifyLocals-before-const-prop.diff index b152dc8cca3a..6a5dc56e211c 100644 --- a/tests/mir-opt/simplify_locals.d2.SimplifyLocals-before-const-prop.diff +++ b/tests/mir-opt/simplify_locals.d2.SimplifyLocals-before-const-prop.diff @@ -9,15 +9,11 @@ bb0: { - StorageLive(_1); // scope 0 at $DIR/simplify_locals.rs:+2:22: +2:26 -- Deinit(_1); // scope 0 at $DIR/simplify_locals.rs:+2:22: +2:26 -- discriminant(_1) = 1; // scope 0 at $DIR/simplify_locals.rs:+2:22: +2:26 +- _1 = E::B; // scope 0 at $DIR/simplify_locals.rs:+2:22: +2:26 - StorageLive(_2); // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:17 - StorageLive(_3); // scope 0 at $DIR/simplify_locals.rs:+2:11: +2:15 -- Deinit(_3); // scope 0 at $DIR/simplify_locals.rs:+2:11: +2:15 -- discriminant(_3) = 0; // scope 0 at $DIR/simplify_locals.rs:+2:11: +2:15 -- Deinit(_2); // scope 0 at $DIR/simplify_locals.rs:+2:6: +2:16 -- (_2.0: i32) = const 10_i32; // scope 0 at $DIR/simplify_locals.rs:+2:6: +2:16 -- (_2.1: E) = move _3; // scope 0 at $DIR/simplify_locals.rs:+2:6: +2:16 +- _3 = E::A; // scope 0 at $DIR/simplify_locals.rs:+2:11: +2:15 +- _2 = (const 10_i32, move _3); // scope 0 at $DIR/simplify_locals.rs:+2:6: +2:16 - StorageDead(_3); // scope 0 at $DIR/simplify_locals.rs:+2:15: +2:16 - (_2.1: E) = move _1; // scope 0 at $DIR/simplify_locals.rs:+2:5: +2:26 - StorageDead(_1); // scope 0 at $DIR/simplify_locals.rs:+2:25: +2:26 diff --git a/tests/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals-final.diff b/tests/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals-final.diff index f888c622d908..9b7dd7338203 100644 --- a/tests/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals-final.diff +++ b/tests/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals-final.diff @@ -18,14 +18,10 @@ bb0: { StorageLive(_1); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69 StorageLive(_2); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49 - Deinit(_2); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49 - discriminant(_2) = 0; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49 + _2 = Option::::None; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:31: +1:49 StorageLive(_3); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68 - Deinit(_3); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68 - discriminant(_3) = 0; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68 - Deinit(_1); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69 - (_1.0: std::option::Option) = move _2; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69 - (_1.1: std::option::Option) = move _3; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69 + _3 = Option::::None; // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:51: +1:68 + _1 = (move _2, move _3); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:30: +1:69 StorageDead(_3); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:68: +1:69 StorageDead(_2); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:68: +1:69 _5 = discriminant((_1.0: std::option::Option)); // scope 1 at $DIR/simplify_locals_fixedpoint.rs:+1:12: +1:27 diff --git a/tests/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals-before-const-prop.diff b/tests/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals-before-const-prop.diff index efb2b0961cc1..0f8866f9c2f4 100644 --- a/tests/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals-before-const-prop.diff +++ b/tests/mir-opt/simplify_locals_removes_unused_consts.main.SimplifyLocals-before-const-prop.diff @@ -28,36 +28,30 @@ bb0: { - StorageLive(_1); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:20: +1:28 - StorageLive(_2); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:21: +1:23 -- Deinit(_2); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:21: +1:23 +- _2 = (); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:21: +1:23 - StorageLive(_3); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:25: +1:27 -- Deinit(_3); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:25: +1:27 -- Deinit(_1); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:20: +1:28 -- (_1.0: ()) = move _2; // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:20: +1:28 -- (_1.1: ()) = move _3; // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:20: +1:28 +- _3 = (); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:25: +1:27 +- _1 = (move _2, move _3); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:20: +1:28 - StorageDead(_3); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:27: +1:28 - StorageDead(_2); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:27: +1:28 - StorageDead(_1); // scope 0 at $DIR/simplify_locals_removes_unused_consts.rs:+1:28: +1:29 - StorageLive(_4); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:5: +2:22 - StorageLive(_5); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21 - StorageLive(_6); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16 -- Deinit(_6); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16 +- _6 = (); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16 - StorageLive(_7); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20 -- Deinit(_7); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20 -- Deinit(_5); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21 -- (_5.0: ()) = move _6; // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21 -- (_5.1: ()) = move _7; // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21 +- _7 = (); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20 +- _5 = (move _6, move _7); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21 - StorageDead(_7); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:20: +2:21 - StorageDead(_6); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:20: +2:21 - _4 = use_zst(move _5) -> bb1; // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:5: +2:22 + StorageLive(_1); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:5: +2:22 + StorageLive(_2); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21 + StorageLive(_3); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16 -+ Deinit(_3); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16 ++ _3 = (); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:14: +2:16 + StorageLive(_4); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20 -+ Deinit(_4); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20 -+ Deinit(_2); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21 -+ (_2.0: ()) = move _3; // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21 -+ (_2.1: ()) = move _4; // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21 ++ _4 = (); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:18: +2:20 ++ _2 = (move _3, move _4); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:13: +2:21 + StorageDead(_4); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:20: +2:21 + StorageDead(_3); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:20: +2:21 + _1 = use_zst(move _2) -> bb1; // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+2:5: +2:22 @@ -73,8 +67,7 @@ - StorageLive(_9); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:34 - StorageLive(_10); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:30 - StorageLive(_11); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28 -- Deinit(_11); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28 -- (_11.0: u8) = const 40_u8; // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28 +- _11 = Temp { x: const 40_u8 }; // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28 - _10 = (_11.0: u8); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:30 - _9 = Add(move _10, const 2_u8); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:34 - StorageDead(_10); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:33: +4:34 @@ -85,8 +78,7 @@ + StorageLive(_6); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:34 + StorageLive(_7); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:30 + StorageLive(_8); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28 -+ Deinit(_8); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28 -+ (_8.0: u8) = const 40_u8; // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28 ++ _8 = Temp { x: const 40_u8 }; // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:28 + _7 = (_8.0: u8); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:30 + _6 = Add(move _7, const 2_u8); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:12: +4:34 + StorageDead(_7); // scope 1 at $DIR/simplify_locals_removes_unused_consts.rs:+4:33: +4:34 diff --git a/tests/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals-before-const-prop.diff b/tests/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals-before-const-prop.diff index 027c983e6b4c..3f9af31d888e 100644 --- a/tests/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals-before-const-prop.diff +++ b/tests/mir-opt/simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals-before-const-prop.diff @@ -26,9 +26,7 @@ _3 = move ((_1 as Some).0: std::boxed::Box<()>); // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:14: +3:15 StorageLive(_4); // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:25: +3:26 _4 = move _3; // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:25: +3:26 - Deinit(_0); // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:20: +3:27 - ((_0 as Some).0: std::boxed::Box<()>) = move _4; // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:20: +3:27 - discriminant(_0) = 1; // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:20: +3:27 + _0 = Option::>::Some(move _4); // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:20: +3:27 StorageDead(_4); // scope 1 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:26: +3:27 StorageDead(_3); // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:26: +3:27 goto -> bb4; // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+3:26: +3:27 @@ -39,8 +37,7 @@ } bb3: { - Deinit(_0); // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+2:17: +2:21 - discriminant(_0) = 0; // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+2:17: +2:21 + _0 = Option::>::None; // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+2:17: +2:21 goto -> bb4; // scope 0 at $DIR/simplify_locals_removes_unused_discriminant_reads.rs:+2:17: +2:21 } diff --git a/tests/mir-opt/simplify_match.main.ConstProp.diff b/tests/mir-opt/simplify_match.main.ConstProp.diff index 35ffc4963cb6..b700adfb105b 100644 --- a/tests/mir-opt/simplify_match.main.ConstProp.diff +++ b/tests/mir-opt/simplify_match.main.ConstProp.diff @@ -10,7 +10,6 @@ } bb0: { - StorageLive(_2); // scope 0 at $DIR/simplify_match.rs:+1:17: +1:18 _2 = const false; // scope 0 at $DIR/simplify_match.rs:+1:21: +1:26 - switchInt(_2) -> [0: bb1, otherwise: bb2]; // scope 0 at $DIR/simplify_match.rs:+1:5: +1:31 + switchInt(const false) -> [0: bb1, otherwise: bb2]; // scope 0 at $DIR/simplify_match.rs:+1:5: +1:31 diff --git a/tests/mir-opt/slice_filter.variant_a-{closure#0}.CopyProp.diff b/tests/mir-opt/slice_filter.variant_a-{closure#0}.CopyProp.diff index d1f6fd97dc7c..da6389676f0d 100644 --- a/tests/mir-opt/slice_filter.variant_a-{closure#0}.CopyProp.diff +++ b/tests/mir-opt/slice_filter.variant_a-{closure#0}.CopyProp.diff @@ -101,16 +101,16 @@ } bb0: { - StorageLive(_3); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 +- StorageLive(_3); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 _25 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 _3 = &((*_25).0: usize); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 - StorageLive(_4); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 +- StorageLive(_4); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 _26 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 _4 = &((*_26).1: usize); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 - StorageLive(_5); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 +- StorageLive(_5); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 _27 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 _5 = &((*_27).2: usize); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 - StorageLive(_6); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 +- StorageLive(_6); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 _28 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 _6 = &((*_28).3: usize); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 StorageLive(_7); // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 diff --git a/tests/mir-opt/slice_filter.variant_a-{closure#0}.DestinationPropagation.diff b/tests/mir-opt/slice_filter.variant_a-{closure#0}.DestinationPropagation.diff index 259cd4118960..294c3272f4f1 100644 --- a/tests/mir-opt/slice_filter.variant_a-{closure#0}.DestinationPropagation.diff +++ b/tests/mir-opt/slice_filter.variant_a-{closure#0}.DestinationPropagation.diff @@ -85,16 +85,12 @@ } bb0: { - StorageLive(_3); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 _25 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 _3 = &((*_25).0: usize); // scope 0 at $DIR/slice_filter.rs:+0:27: +0:28 - StorageLive(_4); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 _26 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 _4 = &((*_26).1: usize); // scope 0 at $DIR/slice_filter.rs:+0:30: +0:31 - StorageLive(_5); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 _27 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 _5 = &((*_27).2: usize); // scope 0 at $DIR/slice_filter.rs:+0:33: +0:34 - StorageLive(_6); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 _28 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 _6 = &((*_28).3: usize); // scope 0 at $DIR/slice_filter.rs:+0:36: +0:37 - StorageLive(_7); // scope 1 at $DIR/slice_filter.rs:+0:40: +0:56 diff --git a/tests/mir-opt/slice_filter.variant_b-{closure#0}.CopyProp.diff b/tests/mir-opt/slice_filter.variant_b-{closure#0}.CopyProp.diff index c3b8e7d2eba2..5e4bdbdfa2e2 100644 --- a/tests/mir-opt/slice_filter.variant_b-{closure#0}.CopyProp.diff +++ b/tests/mir-opt/slice_filter.variant_b-{closure#0}.CopyProp.diff @@ -33,16 +33,16 @@ } bb0: { - StorageLive(_3); // scope 0 at $DIR/slice_filter.rs:+0:29: +0:30 +- StorageLive(_3); // scope 0 at $DIR/slice_filter.rs:+0:29: +0:30 _21 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:29: +0:30 _3 = ((*_21).0: usize); // scope 0 at $DIR/slice_filter.rs:+0:29: +0:30 - StorageLive(_4); // scope 0 at $DIR/slice_filter.rs:+0:32: +0:33 +- StorageLive(_4); // scope 0 at $DIR/slice_filter.rs:+0:32: +0:33 _22 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:32: +0:33 _4 = ((*_22).1: usize); // scope 0 at $DIR/slice_filter.rs:+0:32: +0:33 - StorageLive(_5); // scope 0 at $DIR/slice_filter.rs:+0:35: +0:36 +- StorageLive(_5); // scope 0 at $DIR/slice_filter.rs:+0:35: +0:36 _23 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:35: +0:36 _5 = ((*_23).2: usize); // scope 0 at $DIR/slice_filter.rs:+0:35: +0:36 - StorageLive(_6); // scope 0 at $DIR/slice_filter.rs:+0:38: +0:39 +- StorageLive(_6); // scope 0 at $DIR/slice_filter.rs:+0:38: +0:39 _24 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:38: +0:39 _6 = ((*_24).3: usize); // scope 0 at $DIR/slice_filter.rs:+0:38: +0:39 StorageLive(_7); // scope 1 at $DIR/slice_filter.rs:+0:42: +0:58 diff --git a/tests/mir-opt/slice_filter.variant_b-{closure#0}.DestinationPropagation.diff b/tests/mir-opt/slice_filter.variant_b-{closure#0}.DestinationPropagation.diff index a43e84d29c7a..45af6600cd4e 100644 --- a/tests/mir-opt/slice_filter.variant_b-{closure#0}.DestinationPropagation.diff +++ b/tests/mir-opt/slice_filter.variant_b-{closure#0}.DestinationPropagation.diff @@ -25,16 +25,12 @@ } bb0: { - StorageLive(_3); // scope 0 at $DIR/slice_filter.rs:+0:29: +0:30 _13 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:29: +0:30 _3 = ((*_13).0: usize); // scope 0 at $DIR/slice_filter.rs:+0:29: +0:30 - StorageLive(_4); // scope 0 at $DIR/slice_filter.rs:+0:32: +0:33 _14 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:32: +0:33 _4 = ((*_14).1: usize); // scope 0 at $DIR/slice_filter.rs:+0:32: +0:33 - StorageLive(_5); // scope 0 at $DIR/slice_filter.rs:+0:35: +0:36 _15 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:35: +0:36 _5 = ((*_15).2: usize); // scope 0 at $DIR/slice_filter.rs:+0:35: +0:36 - StorageLive(_6); // scope 0 at $DIR/slice_filter.rs:+0:38: +0:39 _16 = deref_copy (*_2); // scope 0 at $DIR/slice_filter.rs:+0:38: +0:39 _6 = ((*_16).3: usize); // scope 0 at $DIR/slice_filter.rs:+0:38: +0:39 - StorageLive(_7); // scope 1 at $DIR/slice_filter.rs:+0:42: +0:58 diff --git a/tests/mir-opt/sroa.copies.ScalarReplacementOfAggregates.diff b/tests/mir-opt/sroa.copies.ScalarReplacementOfAggregates.diff new file mode 100644 index 000000000000..976f6d44b752 --- /dev/null +++ b/tests/mir-opt/sroa.copies.ScalarReplacementOfAggregates.diff @@ -0,0 +1,91 @@ +- // MIR for `copies` before ScalarReplacementOfAggregates ++ // MIR for `copies` after ScalarReplacementOfAggregates + + fn copies(_1: Foo) -> () { + debug x => _1; // in scope 0 at $DIR/sroa.rs:+0:11: +0:12 + let mut _0: (); // return place in scope 0 at $DIR/sroa.rs:+0:19: +0:19 + let _2: Foo; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ let _11: u8; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ let _12: (); // in scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ let _13: &str; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ let _14: std::option::Option; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10 + scope 1 { +- debug y => _2; // in scope 1 at $DIR/sroa.rs:+1:9: +1:10 ++ debug y => Foo{ .0 => _11, .1 => _12, .2 => _13, .3 => _14, }; // in scope 1 at $DIR/sroa.rs:+1:9: +1:10 + let _3: u8; // in scope 1 at $DIR/sroa.rs:+2:9: +2:10 + scope 2 { + debug t => _3; // in scope 2 at $DIR/sroa.rs:+2:9: +2:10 + let _4: &str; // in scope 2 at $DIR/sroa.rs:+3:9: +3:10 + scope 3 { + debug u => _4; // in scope 3 at $DIR/sroa.rs:+3:9: +3:10 + let _5: Foo; // in scope 3 at $DIR/sroa.rs:+4:9: +4:10 ++ let _7: u8; // in scope 3 at $DIR/sroa.rs:+4:9: +4:10 ++ let _8: (); // in scope 3 at $DIR/sroa.rs:+4:9: +4:10 ++ let _9: &str; // in scope 3 at $DIR/sroa.rs:+4:9: +4:10 ++ let _10: std::option::Option; // in scope 3 at $DIR/sroa.rs:+4:9: +4:10 + scope 4 { +- debug z => _5; // in scope 4 at $DIR/sroa.rs:+4:9: +4:10 ++ debug z => Foo{ .0 => _7, .1 => _8, .2 => _9, .3 => _10, }; // in scope 4 at $DIR/sroa.rs:+4:9: +4:10 + let _6: (); // in scope 4 at $DIR/sroa.rs:+5:9: +5:10 + scope 5 { + debug a => _6; // in scope 5 at $DIR/sroa.rs:+5:9: +5:10 + } + } + } + } + } + + bb0: { +- StorageLive(_2); // scope 0 at $DIR/sroa.rs:+1:9: +1:10 +- _2 = _1; // scope 0 at $DIR/sroa.rs:+1:13: +1:14 ++ StorageLive(_11); // scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ StorageLive(_12); // scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ StorageLive(_13); // scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ StorageLive(_14); // scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ nop; // scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ _11 = (_1.0: u8); // scope 0 at $DIR/sroa.rs:+1:13: +1:14 ++ _12 = (_1.1: ()); // scope 0 at $DIR/sroa.rs:+1:13: +1:14 ++ _13 = (_1.2: &str); // scope 0 at $DIR/sroa.rs:+1:13: +1:14 ++ _14 = (_1.3: std::option::Option); // scope 0 at $DIR/sroa.rs:+1:13: +1:14 ++ nop; // scope 0 at $DIR/sroa.rs:+1:13: +1:14 + StorageLive(_3); // scope 1 at $DIR/sroa.rs:+2:9: +2:10 +- _3 = (_2.0: u8); // scope 1 at $DIR/sroa.rs:+2:13: +2:16 ++ _3 = _11; // scope 1 at $DIR/sroa.rs:+2:13: +2:16 + StorageLive(_4); // scope 2 at $DIR/sroa.rs:+3:9: +3:10 +- _4 = (_2.2: &str); // scope 2 at $DIR/sroa.rs:+3:13: +3:16 +- StorageLive(_5); // scope 3 at $DIR/sroa.rs:+4:9: +4:10 +- _5 = _2; // scope 3 at $DIR/sroa.rs:+4:13: +4:14 ++ _4 = _13; // scope 2 at $DIR/sroa.rs:+3:13: +3:16 ++ StorageLive(_7); // scope 3 at $DIR/sroa.rs:+4:9: +4:10 ++ StorageLive(_8); // scope 3 at $DIR/sroa.rs:+4:9: +4:10 ++ StorageLive(_9); // scope 3 at $DIR/sroa.rs:+4:9: +4:10 ++ StorageLive(_10); // scope 3 at $DIR/sroa.rs:+4:9: +4:10 ++ nop; // scope 3 at $DIR/sroa.rs:+4:9: +4:10 ++ _7 = _11; // scope 3 at $DIR/sroa.rs:+4:13: +4:14 ++ _8 = _12; // scope 3 at $DIR/sroa.rs:+4:13: +4:14 ++ _9 = _13; // scope 3 at $DIR/sroa.rs:+4:13: +4:14 ++ _10 = _14; // scope 3 at $DIR/sroa.rs:+4:13: +4:14 ++ nop; // scope 3 at $DIR/sroa.rs:+4:13: +4:14 + StorageLive(_6); // scope 4 at $DIR/sroa.rs:+5:9: +5:10 +- _6 = (_5.1: ()); // scope 4 at $DIR/sroa.rs:+5:13: +5:16 ++ _6 = _8; // scope 4 at $DIR/sroa.rs:+5:13: +5:16 + _0 = const (); // scope 0 at $DIR/sroa.rs:+0:19: +6:2 + StorageDead(_6); // scope 4 at $DIR/sroa.rs:+6:1: +6:2 +- StorageDead(_5); // scope 3 at $DIR/sroa.rs:+6:1: +6:2 ++ StorageDead(_7); // scope 3 at $DIR/sroa.rs:+6:1: +6:2 ++ StorageDead(_8); // scope 3 at $DIR/sroa.rs:+6:1: +6:2 ++ StorageDead(_9); // scope 3 at $DIR/sroa.rs:+6:1: +6:2 ++ StorageDead(_10); // scope 3 at $DIR/sroa.rs:+6:1: +6:2 ++ nop; // scope 3 at $DIR/sroa.rs:+6:1: +6:2 + StorageDead(_4); // scope 2 at $DIR/sroa.rs:+6:1: +6:2 + StorageDead(_3); // scope 1 at $DIR/sroa.rs:+6:1: +6:2 +- StorageDead(_2); // scope 0 at $DIR/sroa.rs:+6:1: +6:2 ++ StorageDead(_11); // scope 0 at $DIR/sroa.rs:+6:1: +6:2 ++ StorageDead(_12); // scope 0 at $DIR/sroa.rs:+6:1: +6:2 ++ StorageDead(_13); // scope 0 at $DIR/sroa.rs:+6:1: +6:2 ++ StorageDead(_14); // scope 0 at $DIR/sroa.rs:+6:1: +6:2 ++ nop; // scope 0 at $DIR/sroa.rs:+6:1: +6:2 + return; // scope 0 at $DIR/sroa.rs:+6:2: +6:2 + } + } + diff --git a/tests/mir-opt/sroa.dropping.ScalarReplacementOfAggregates.diff b/tests/mir-opt/sroa.dropping.ScalarReplacementOfAggregates.diff index eb88304466ee..17a89e7d8eb2 100644 --- a/tests/mir-opt/sroa.dropping.ScalarReplacementOfAggregates.diff +++ b/tests/mir-opt/sroa.dropping.ScalarReplacementOfAggregates.diff @@ -13,18 +13,12 @@ StorageLive(_1); // scope 0 at $DIR/sroa.rs:+1:5: +1:32 StorageLive(_2); // scope 0 at $DIR/sroa.rs:+1:5: +1:30 StorageLive(_3); // scope 0 at $DIR/sroa.rs:+1:7: +1:13 - Deinit(_3); // scope 0 at $DIR/sroa.rs:+1:7: +1:13 - (_3.0: usize) = const 0_usize; // scope 0 at $DIR/sroa.rs:+1:7: +1:13 + _3 = Tag(const 0_usize); // scope 0 at $DIR/sroa.rs:+1:7: +1:13 StorageLive(_4); // scope 0 at $DIR/sroa.rs:+1:15: +1:21 - Deinit(_4); // scope 0 at $DIR/sroa.rs:+1:15: +1:21 - (_4.0: usize) = const 1_usize; // scope 0 at $DIR/sroa.rs:+1:15: +1:21 + _4 = Tag(const 1_usize); // scope 0 at $DIR/sroa.rs:+1:15: +1:21 StorageLive(_5); // scope 0 at $DIR/sroa.rs:+1:23: +1:29 - Deinit(_5); // scope 0 at $DIR/sroa.rs:+1:23: +1:29 - (_5.0: usize) = const 2_usize; // scope 0 at $DIR/sroa.rs:+1:23: +1:29 - Deinit(_2); // scope 0 at $DIR/sroa.rs:+1:5: +1:30 - (_2.0: Tag) = move _3; // scope 0 at $DIR/sroa.rs:+1:5: +1:30 - (_2.1: Tag) = move _4; // scope 0 at $DIR/sroa.rs:+1:5: +1:30 - (_2.2: Tag) = move _5; // scope 0 at $DIR/sroa.rs:+1:5: +1:30 + _5 = Tag(const 2_usize); // scope 0 at $DIR/sroa.rs:+1:23: +1:29 + _2 = S(move _3, move _4, move _5); // scope 0 at $DIR/sroa.rs:+1:5: +1:30 StorageDead(_5); // scope 0 at $DIR/sroa.rs:+1:29: +1:30 StorageDead(_4); // scope 0 at $DIR/sroa.rs:+1:29: +1:30 StorageDead(_3); // scope 0 at $DIR/sroa.rs:+1:29: +1:30 diff --git a/tests/mir-opt/sroa.enums.ScalarReplacementOfAggregates.diff b/tests/mir-opt/sroa.enums.ScalarReplacementOfAggregates.diff index a5488c1ec7bf..04d26162aade 100644 --- a/tests/mir-opt/sroa.enums.ScalarReplacementOfAggregates.diff +++ b/tests/mir-opt/sroa.enums.ScalarReplacementOfAggregates.diff @@ -16,9 +16,7 @@ StorageLive(_2); // scope 1 at $DIR/sroa.rs:+1:22: +1:29 StorageLive(_3); // scope 1 at $DIR/sroa.rs:+1:27: +1:28 _3 = _1; // scope 1 at $DIR/sroa.rs:+1:27: +1:28 - Deinit(_2); // scope 1 at $DIR/sroa.rs:+1:22: +1:29 - ((_2 as Some).0: usize) = move _3; // scope 1 at $DIR/sroa.rs:+1:22: +1:29 - discriminant(_2) = 1; // scope 1 at $DIR/sroa.rs:+1:22: +1:29 + _2 = Option::::Some(move _3); // scope 1 at $DIR/sroa.rs:+1:22: +1:29 StorageDead(_3); // scope 1 at $DIR/sroa.rs:+1:28: +1:29 _4 = discriminant(_2); // scope 1 at $DIR/sroa.rs:+1:12: +1:19 switchInt(move _4) -> [1: bb1, otherwise: bb2]; // scope 1 at $DIR/sroa.rs:+1:12: +1:19 diff --git a/tests/mir-opt/sroa.escaping.ScalarReplacementOfAggregates.diff b/tests/mir-opt/sroa.escaping.ScalarReplacementOfAggregates.diff index 64559b58f61f..ea7f50072245 100644 --- a/tests/mir-opt/sroa.escaping.ScalarReplacementOfAggregates.diff +++ b/tests/mir-opt/sroa.escaping.ScalarReplacementOfAggregates.diff @@ -17,21 +17,18 @@ StorageLive(_5); // scope 0 at $DIR/sroa.rs:+2:34: +2:37 _5 = g() -> bb1; // scope 0 at $DIR/sroa.rs:+2:34: +2:37 // mir::Constant - // + span: $DIR/sroa.rs:78:34: 78:35 + // + span: $DIR/sroa.rs:73:34: 73:35 // + literal: Const { ty: fn() -> u32 {g}, val: Value() } } bb1: { - Deinit(_4); // scope 0 at $DIR/sroa.rs:+2:8: +2:39 - (_4.0: u32) = const 1_u32; // scope 0 at $DIR/sroa.rs:+2:8: +2:39 - (_4.1: u32) = const 2_u32; // scope 0 at $DIR/sroa.rs:+2:8: +2:39 - (_4.2: u32) = move _5; // scope 0 at $DIR/sroa.rs:+2:8: +2:39 + _4 = Escaping { a: const 1_u32, b: const 2_u32, c: move _5 }; // scope 0 at $DIR/sroa.rs:+2:8: +2:39 StorageDead(_5); // scope 0 at $DIR/sroa.rs:+2:38: +2:39 _3 = &(_4.0: u32); // scope 0 at $DIR/sroa.rs:+2:7: +2:41 _2 = &raw const (*_3); // scope 0 at $DIR/sroa.rs:+2:7: +2:41 _1 = f(move _2) -> bb2; // scope 0 at $DIR/sroa.rs:+2:5: +2:42 // mir::Constant - // + span: $DIR/sroa.rs:78:5: 78:6 + // + span: $DIR/sroa.rs:73:5: 73:6 // + literal: Const { ty: fn(*const u32) {f}, val: Value() } } diff --git a/tests/mir-opt/sroa.flat.ScalarReplacementOfAggregates.diff b/tests/mir-opt/sroa.flat.ScalarReplacementOfAggregates.diff index d4c04d5e68b8..69631fc0213f 100644 --- a/tests/mir-opt/sroa.flat.ScalarReplacementOfAggregates.diff +++ b/tests/mir-opt/sroa.flat.ScalarReplacementOfAggregates.diff @@ -35,28 +35,20 @@ + StorageLive(_9); // scope 0 at $DIR/sroa.rs:+1:30: +1:70 + StorageLive(_10); // scope 0 at $DIR/sroa.rs:+1:30: +1:70 + StorageLive(_11); // scope 0 at $DIR/sroa.rs:+1:30: +1:70 ++ nop; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 StorageLive(_6); // scope 0 at $DIR/sroa.rs:+1:45: +1:47 - Deinit(_6); // scope 0 at $DIR/sroa.rs:+1:45: +1:47 + _6 = (); // scope 0 at $DIR/sroa.rs:+1:45: +1:47 StorageLive(_7); // scope 0 at $DIR/sroa.rs:+1:60: +1:68 - Deinit(_7); // scope 0 at $DIR/sroa.rs:+1:60: +1:68 - ((_7 as Some).0: isize) = const -4_isize; // scope 0 at $DIR/sroa.rs:+1:60: +1:68 - discriminant(_7) = 1; // scope 0 at $DIR/sroa.rs:+1:60: +1:68 -- Deinit(_5); // scope 0 at $DIR/sroa.rs:+1:30: +1:70 -- (_5.0: u8) = const 5_u8; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 -- (_5.1: ()) = move _6; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 -- (_5.2: &str) = const "a"; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 -+ Deinit(_8); // scope 0 at $DIR/sroa.rs:+1:30: +1:70 -+ Deinit(_9); // scope 0 at $DIR/sroa.rs:+1:30: +1:70 -+ Deinit(_10); // scope 0 at $DIR/sroa.rs:+1:30: +1:70 -+ Deinit(_11); // scope 0 at $DIR/sroa.rs:+1:30: +1:70 + _7 = Option::::Some(const -4_isize); // scope 0 at $DIR/sroa.rs:+1:60: +1:68 +- _5 = Foo { a: const 5_u8, b: move _6, c: const "a", d: move _7 }; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 + _8 = const 5_u8; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 + _9 = move _6; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 + _10 = const "a"; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 // mir::Constant - // + span: $DIR/sroa.rs:57:52: 57:55 + // + span: $DIR/sroa.rs:53:52: 53:55 // + literal: Const { ty: &str, val: Value(Slice(..)) } -- (_5.3: std::option::Option) = move _7; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 + _11 = move _7; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 ++ nop; // scope 0 at $DIR/sroa.rs:+1:30: +1:70 StorageDead(_7); // scope 0 at $DIR/sroa.rs:+1:69: +1:70 StorageDead(_6); // scope 0 at $DIR/sroa.rs:+1:69: +1:70 StorageLive(_1); // scope 0 at $DIR/sroa.rs:+1:15: +1:16 @@ -76,6 +68,7 @@ + StorageDead(_9); // scope 0 at $DIR/sroa.rs:+1:70: +1:71 + StorageDead(_10); // scope 0 at $DIR/sroa.rs:+1:70: +1:71 + StorageDead(_11); // scope 0 at $DIR/sroa.rs:+1:70: +1:71 ++ nop; // scope 0 at $DIR/sroa.rs:+1:70: +1:71 _0 = const (); // scope 0 at $DIR/sroa.rs:+0:15: +6:2 StorageDead(_4); // scope 0 at $DIR/sroa.rs:+6:1: +6:2 StorageDead(_3); // scope 0 at $DIR/sroa.rs:+6:1: +6:2 diff --git a/tests/mir-opt/sroa.ref_copies.ScalarReplacementOfAggregates.diff b/tests/mir-opt/sroa.ref_copies.ScalarReplacementOfAggregates.diff new file mode 100644 index 000000000000..f0d62220dd66 --- /dev/null +++ b/tests/mir-opt/sroa.ref_copies.ScalarReplacementOfAggregates.diff @@ -0,0 +1,56 @@ +- // MIR for `ref_copies` before ScalarReplacementOfAggregates ++ // MIR for `ref_copies` after ScalarReplacementOfAggregates + + fn ref_copies(_1: &Foo) -> () { + debug x => _1; // in scope 0 at $DIR/sroa.rs:+0:15: +0:16 + let mut _0: (); // return place in scope 0 at $DIR/sroa.rs:+0:24: +0:24 + let _2: Foo; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ let _5: u8; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ let _6: (); // in scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ let _7: &str; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ let _8: std::option::Option; // in scope 0 at $DIR/sroa.rs:+1:9: +1:10 + scope 1 { +- debug y => _2; // in scope 1 at $DIR/sroa.rs:+1:9: +1:10 ++ debug y => Foo{ .0 => _5, .1 => _6, .2 => _7, .3 => _8, }; // in scope 1 at $DIR/sroa.rs:+1:9: +1:10 + let _3: u8; // in scope 1 at $DIR/sroa.rs:+2:9: +2:10 + scope 2 { + debug t => _3; // in scope 2 at $DIR/sroa.rs:+2:9: +2:10 + let _4: &str; // in scope 2 at $DIR/sroa.rs:+3:9: +3:10 + scope 3 { + debug u => _4; // in scope 3 at $DIR/sroa.rs:+3:9: +3:10 + } + } + } + + bb0: { +- StorageLive(_2); // scope 0 at $DIR/sroa.rs:+1:9: +1:10 +- _2 = (*_1); // scope 0 at $DIR/sroa.rs:+1:13: +1:15 ++ StorageLive(_5); // scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ StorageLive(_6); // scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ StorageLive(_7); // scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ StorageLive(_8); // scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ nop; // scope 0 at $DIR/sroa.rs:+1:9: +1:10 ++ _5 = ((*_1).0: u8); // scope 0 at $DIR/sroa.rs:+1:13: +1:15 ++ _6 = ((*_1).1: ()); // scope 0 at $DIR/sroa.rs:+1:13: +1:15 ++ _7 = ((*_1).2: &str); // scope 0 at $DIR/sroa.rs:+1:13: +1:15 ++ _8 = ((*_1).3: std::option::Option); // scope 0 at $DIR/sroa.rs:+1:13: +1:15 ++ nop; // scope 0 at $DIR/sroa.rs:+1:13: +1:15 + StorageLive(_3); // scope 1 at $DIR/sroa.rs:+2:9: +2:10 +- _3 = (_2.0: u8); // scope 1 at $DIR/sroa.rs:+2:13: +2:16 ++ _3 = _5; // scope 1 at $DIR/sroa.rs:+2:13: +2:16 + StorageLive(_4); // scope 2 at $DIR/sroa.rs:+3:9: +3:10 +- _4 = (_2.2: &str); // scope 2 at $DIR/sroa.rs:+3:13: +3:16 ++ _4 = _7; // scope 2 at $DIR/sroa.rs:+3:13: +3:16 + _0 = const (); // scope 0 at $DIR/sroa.rs:+0:24: +4:2 + StorageDead(_4); // scope 2 at $DIR/sroa.rs:+4:1: +4:2 + StorageDead(_3); // scope 1 at $DIR/sroa.rs:+4:1: +4:2 +- StorageDead(_2); // scope 0 at $DIR/sroa.rs:+4:1: +4:2 ++ StorageDead(_5); // scope 0 at $DIR/sroa.rs:+4:1: +4:2 ++ StorageDead(_6); // scope 0 at $DIR/sroa.rs:+4:1: +4:2 ++ StorageDead(_7); // scope 0 at $DIR/sroa.rs:+4:1: +4:2 ++ StorageDead(_8); // scope 0 at $DIR/sroa.rs:+4:1: +4:2 ++ nop; // scope 0 at $DIR/sroa.rs:+4:1: +4:2 + return; // scope 0 at $DIR/sroa.rs:+4:2: +4:2 + } + } + diff --git a/tests/mir-opt/sroa.rs b/tests/mir-opt/sroa.rs index ff8deb40d7d5..471aac9f9d82 100644 --- a/tests/mir-opt/sroa.rs +++ b/tests/mir-opt/sroa.rs @@ -12,17 +12,14 @@ impl Drop for Tag { fn drop(&mut self) {} } -// EMIT_MIR sroa.dropping.ScalarReplacementOfAggregates.diff pub fn dropping() { S(Tag(0), Tag(1), Tag(2)).1; } -// EMIT_MIR sroa.enums.ScalarReplacementOfAggregates.diff pub fn enums(a: usize) -> usize { if let Some(a) = Some(a) { a } else { 0 } } -// EMIT_MIR sroa.structs.ScalarReplacementOfAggregates.diff pub fn structs(a: f32) -> f32 { struct U { _foo: usize, @@ -32,7 +29,6 @@ pub fn structs(a: f32) -> f32 { U { _foo: 0, a }.a } -// EMIT_MIR sroa.unions.ScalarReplacementOfAggregates.diff pub fn unions(a: f32) -> u32 { union Repr { f: f32, @@ -41,6 +37,7 @@ pub fn unions(a: f32) -> u32 { unsafe { Repr { f: a }.u } } +#[derive(Copy, Clone)] struct Foo { a: u8, b: (), @@ -52,7 +49,6 @@ fn g() -> u32 { 3 } -// EMIT_MIR sroa.flat.ScalarReplacementOfAggregates.diff pub fn flat() { let Foo { a, b, c, d } = Foo { a: 5, b: (), c: "a", d: Some(-4) }; let _ = a; @@ -72,12 +68,25 @@ fn f(a: *const u32) { println!("{}", unsafe { *a.add(2) }); } -// EMIT_MIR sroa.escaping.ScalarReplacementOfAggregates.diff pub fn escaping() { // Verify this struct is not flattened. f(&Escaping { a: 1, b: 2, c: g() }.a); } +fn copies(x: Foo) { + let y = x; + let t = y.a; + let u = y.c; + let z = y; + let a = z.b; +} + +fn ref_copies(x: &Foo) { + let y = *x; + let t = y.a; + let u = y.c; +} + fn main() { dropping(); enums(5); @@ -85,4 +94,15 @@ fn main() { unions(5.); flat(); escaping(); + copies(Foo { a: 5, b: (), c: "a", d: Some(-4) }); + ref_copies(&Foo { a: 5, b: (), c: "a", d: Some(-4) }); } + +// EMIT_MIR sroa.dropping.ScalarReplacementOfAggregates.diff +// EMIT_MIR sroa.enums.ScalarReplacementOfAggregates.diff +// EMIT_MIR sroa.structs.ScalarReplacementOfAggregates.diff +// EMIT_MIR sroa.unions.ScalarReplacementOfAggregates.diff +// EMIT_MIR sroa.flat.ScalarReplacementOfAggregates.diff +// EMIT_MIR sroa.escaping.ScalarReplacementOfAggregates.diff +// EMIT_MIR sroa.copies.ScalarReplacementOfAggregates.diff +// EMIT_MIR sroa.ref_copies.ScalarReplacementOfAggregates.diff diff --git a/tests/mir-opt/sroa.structs.ScalarReplacementOfAggregates.diff b/tests/mir-opt/sroa.structs.ScalarReplacementOfAggregates.diff index 69d74c351dec..2c63d8b266dd 100644 --- a/tests/mir-opt/sroa.structs.ScalarReplacementOfAggregates.diff +++ b/tests/mir-opt/sroa.structs.ScalarReplacementOfAggregates.diff @@ -13,21 +13,20 @@ - StorageLive(_2); // scope 0 at $DIR/sroa.rs:+6:5: +6:21 + StorageLive(_4); // scope 0 at $DIR/sroa.rs:+6:5: +6:21 + StorageLive(_5); // scope 0 at $DIR/sroa.rs:+6:5: +6:21 ++ nop; // scope 0 at $DIR/sroa.rs:+6:5: +6:21 StorageLive(_3); // scope 0 at $DIR/sroa.rs:+6:18: +6:19 _3 = _1; // scope 0 at $DIR/sroa.rs:+6:18: +6:19 -- Deinit(_2); // scope 0 at $DIR/sroa.rs:+6:5: +6:21 -- (_2.0: usize) = const 0_usize; // scope 0 at $DIR/sroa.rs:+6:5: +6:21 -- (_2.1: f32) = move _3; // scope 0 at $DIR/sroa.rs:+6:5: +6:21 -+ Deinit(_4); // scope 0 at $DIR/sroa.rs:+6:5: +6:21 -+ Deinit(_5); // scope 0 at $DIR/sroa.rs:+6:5: +6:21 +- _2 = U { _foo: const 0_usize, a: move _3 }; // scope 0 at $DIR/sroa.rs:+6:5: +6:21 + _4 = const 0_usize; // scope 0 at $DIR/sroa.rs:+6:5: +6:21 + _5 = move _3; // scope 0 at $DIR/sroa.rs:+6:5: +6:21 ++ nop; // scope 0 at $DIR/sroa.rs:+6:5: +6:21 StorageDead(_3); // scope 0 at $DIR/sroa.rs:+6:20: +6:21 - _0 = (_2.1: f32); // scope 0 at $DIR/sroa.rs:+6:5: +6:23 - StorageDead(_2); // scope 0 at $DIR/sroa.rs:+7:1: +7:2 + _0 = _5; // scope 0 at $DIR/sroa.rs:+6:5: +6:23 + StorageDead(_4); // scope 0 at $DIR/sroa.rs:+7:1: +7:2 + StorageDead(_5); // scope 0 at $DIR/sroa.rs:+7:1: +7:2 ++ nop; // scope 0 at $DIR/sroa.rs:+7:1: +7:2 return; // scope 0 at $DIR/sroa.rs:+7:2: +7:2 } } diff --git a/tests/mir-opt/sroa.unions.ScalarReplacementOfAggregates.diff b/tests/mir-opt/sroa.unions.ScalarReplacementOfAggregates.diff index 03ca976df7be..adfb01385d44 100644 --- a/tests/mir-opt/sroa.unions.ScalarReplacementOfAggregates.diff +++ b/tests/mir-opt/sroa.unions.ScalarReplacementOfAggregates.diff @@ -13,8 +13,7 @@ StorageLive(_2); // scope 1 at $DIR/sroa.rs:+5:14: +5:27 StorageLive(_3); // scope 1 at $DIR/sroa.rs:+5:24: +5:25 _3 = _1; // scope 1 at $DIR/sroa.rs:+5:24: +5:25 - Deinit(_2); // scope 1 at $DIR/sroa.rs:+5:14: +5:27 - (_2.0: f32) = move _3; // scope 1 at $DIR/sroa.rs:+5:14: +5:27 + _2 = Repr { f: move _3 }; // scope 1 at $DIR/sroa.rs:+5:14: +5:27 StorageDead(_3); // scope 1 at $DIR/sroa.rs:+5:26: +5:27 _0 = (_2.1: u32); // scope 1 at $DIR/sroa.rs:+5:14: +5:29 StorageDead(_2); // scope 0 at $DIR/sroa.rs:+6:1: +6:2 diff --git a/tests/mir-opt/try_identity_e2e.new.PreCodegen.after.mir b/tests/mir-opt/try_identity_e2e.new.PreCodegen.after.mir index 7c67d2abcf7c..b9cc1057513d 100644 --- a/tests/mir-opt/try_identity_e2e.new.PreCodegen.after.mir +++ b/tests/mir-opt/try_identity_e2e.new.PreCodegen.after.mir @@ -26,49 +26,40 @@ fn new(_1: Result) -> Result { bb0: { StorageLive(_2); // scope 0 at $DIR/try_identity_e2e.rs:+2:15: +7:10 _3 = discriminant(_1); // scope 0 at $DIR/try_identity_e2e.rs:+3:19: +3:20 - switchInt(move _3) -> [0: bb2, 1: bb1, otherwise: bb4]; // scope 0 at $DIR/try_identity_e2e.rs:+3:13: +3:20 + switchInt(move _3) -> [0: bb2, 1: bb1, otherwise: bb5]; // scope 0 at $DIR/try_identity_e2e.rs:+3:13: +3:20 } bb1: { - StorageLive(_5); // scope 0 at $DIR/try_identity_e2e.rs:+5:21: +5:22 _5 = move ((_1 as Err).0: E); // scope 0 at $DIR/try_identity_e2e.rs:+5:21: +5:22 - Deinit(_2); // scope 2 at $DIR/try_identity_e2e.rs:+5:27: +5:48 - ((_2 as Break).0: E) = move _5; // scope 2 at $DIR/try_identity_e2e.rs:+5:27: +5:48 - discriminant(_2) = 1; // scope 2 at $DIR/try_identity_e2e.rs:+5:27: +5:48 - _6 = discriminant(_2); // scope 0 at $DIR/try_identity_e2e.rs:+2:15: +7:10 - switchInt(move _6) -> [0: bb5, 1: bb3, otherwise: bb4]; // scope 0 at $DIR/try_identity_e2e.rs:+2:9: +7:10 + _2 = ControlFlow::::Break(move _5); // scope 2 at $DIR/try_identity_e2e.rs:+5:27: +5:48 + goto -> bb3; // scope 0 at $DIR/try_identity_e2e.rs:+5:47: +5:48 } bb2: { - StorageLive(_4); // scope 0 at $DIR/try_identity_e2e.rs:+4:20: +4:21 _4 = move ((_1 as Ok).0: T); // scope 0 at $DIR/try_identity_e2e.rs:+4:20: +4:21 - Deinit(_2); // scope 1 at $DIR/try_identity_e2e.rs:+4:26: +4:50 - ((_2 as Continue).0: T) = move _4; // scope 1 at $DIR/try_identity_e2e.rs:+4:26: +4:50 - discriminant(_2) = 0; // scope 1 at $DIR/try_identity_e2e.rs:+4:26: +4:50 - _6 = discriminant(_2); // scope 0 at $DIR/try_identity_e2e.rs:+2:15: +7:10 - switchInt(move _6) -> [0: bb5, 1: bb3, otherwise: bb4]; // scope 0 at $DIR/try_identity_e2e.rs:+2:9: +7:10 + _2 = ControlFlow::::Continue(move _4); // scope 1 at $DIR/try_identity_e2e.rs:+4:26: +4:50 + goto -> bb3; // scope 0 at $DIR/try_identity_e2e.rs:+4:49: +4:50 } bb3: { - StorageLive(_8); // scope 0 at $DIR/try_identity_e2e.rs:+9:32: +9:33 + _6 = discriminant(_2); // scope 0 at $DIR/try_identity_e2e.rs:+2:15: +7:10 + switchInt(move _6) -> [0: bb6, 1: bb4, otherwise: bb5]; // scope 0 at $DIR/try_identity_e2e.rs:+2:9: +7:10 + } + + bb4: { _8 = move ((_2 as Break).0: E); // scope 0 at $DIR/try_identity_e2e.rs:+9:32: +9:33 - Deinit(_0); // scope 4 at $DIR/try_identity_e2e.rs:+9:45: +9:51 - ((_0 as Err).0: E) = move _8; // scope 4 at $DIR/try_identity_e2e.rs:+9:45: +9:51 - discriminant(_0) = 1; // scope 4 at $DIR/try_identity_e2e.rs:+9:45: +9:51 + _0 = Result::::Err(move _8); // scope 4 at $DIR/try_identity_e2e.rs:+9:45: +9:51 StorageDead(_2); // scope 0 at $DIR/try_identity_e2e.rs:+12:1: +12:2 return; // scope 0 at $DIR/try_identity_e2e.rs:+12:1: +12:2 } - bb4: { + bb5: { unreachable; // scope 0 at $DIR/try_identity_e2e.rs:+2:15: +7:10 } - bb5: { - StorageLive(_7); // scope 0 at $DIR/try_identity_e2e.rs:+8:35: +8:36 + bb6: { _7 = move ((_2 as Continue).0: T); // scope 0 at $DIR/try_identity_e2e.rs:+8:35: +8:36 - Deinit(_0); // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +11:6 - ((_0 as Ok).0: T) = move _7; // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +11:6 - discriminant(_0) = 0; // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +11:6 + _0 = Result::::Ok(move _7); // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +11:6 StorageDead(_2); // scope 0 at $DIR/try_identity_e2e.rs:+12:1: +12:2 return; // scope 0 at $DIR/try_identity_e2e.rs:+12:1: +12:2 } diff --git a/tests/mir-opt/try_identity_e2e.old.PreCodegen.after.mir b/tests/mir-opt/try_identity_e2e.old.PreCodegen.after.mir index 4a838e140262..d88ae5ac93eb 100644 --- a/tests/mir-opt/try_identity_e2e.old.PreCodegen.after.mir +++ b/tests/mir-opt/try_identity_e2e.old.PreCodegen.after.mir @@ -19,11 +19,8 @@ fn old(_1: Result) -> Result { } bb1: { - StorageLive(_4); // scope 0 at $DIR/try_identity_e2e.rs:+4:17: +4:18 _4 = move ((_1 as Err).0: E); // scope 0 at $DIR/try_identity_e2e.rs:+4:17: +4:18 - Deinit(_0); // scope 2 at $DIR/try_identity_e2e.rs:+4:30: +4:36 - ((_0 as Err).0: E) = move _4; // scope 2 at $DIR/try_identity_e2e.rs:+4:30: +4:36 - discriminant(_0) = 1; // scope 2 at $DIR/try_identity_e2e.rs:+4:30: +4:36 + _0 = Result::::Err(move _4); // scope 2 at $DIR/try_identity_e2e.rs:+4:30: +4:36 return; // scope 0 at $DIR/try_identity_e2e.rs:+7:1: +7:2 } @@ -32,11 +29,8 @@ fn old(_1: Result) -> Result { } bb3: { - StorageLive(_3); // scope 0 at $DIR/try_identity_e2e.rs:+3:16: +3:17 _3 = move ((_1 as Ok).0: T); // scope 0 at $DIR/try_identity_e2e.rs:+3:16: +3:17 - Deinit(_0); // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +6:6 - ((_0 as Ok).0: T) = move _3; // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +6:6 - discriminant(_0) = 0; // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +6:6 + _0 = Result::::Ok(move _3); // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +6:6 return; // scope 0 at $DIR/try_identity_e2e.rs:+7:1: +7:2 } } diff --git a/tests/mir-opt/uninhabited_enum_branching.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir b/tests/mir-opt/uninhabited_enum_branching.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir index 39ec05277595..03f37b14b28c 100644 --- a/tests/mir-opt/uninhabited_enum_branching.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir +++ b/tests/mir-opt/uninhabited_enum_branching.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir @@ -15,8 +15,7 @@ fn main() -> () { bb0: { StorageLive(_1); // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:5: +5:6 StorageLive(_2); // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19 - Deinit(_2); // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19 - discriminant(_2) = 2; // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19 + _2 = Test1::C; // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19 _3 = discriminant(_2); // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19 switchInt(move _3) -> [2: bb1, otherwise: bb2]; // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:5: +1:19 } @@ -33,8 +32,7 @@ fn main() -> () { StorageDead(_1); // scope 0 at $DIR/uninhabited_enum_branching.rs:+5:6: +5:7 StorageLive(_6); // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:5: +10:6 StorageLive(_7); // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19 - Deinit(_7); // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19 - discriminant(_7) = 0; // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19 + _7 = Test2::D; // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19 _8 = discriminant(_7); // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19 switchInt(move _8) -> [4: bb5, 5: bb3, otherwise: bb4]; // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:5: +7:19 } diff --git a/tests/mir-opt/uninhabited_enum_branching.main.UninhabitedEnumBranching.diff b/tests/mir-opt/uninhabited_enum_branching.main.UninhabitedEnumBranching.diff index 598413a1d82d..671e116226be 100644 --- a/tests/mir-opt/uninhabited_enum_branching.main.UninhabitedEnumBranching.diff +++ b/tests/mir-opt/uninhabited_enum_branching.main.UninhabitedEnumBranching.diff @@ -16,8 +16,7 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:5: +5:6 StorageLive(_2); // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19 - Deinit(_2); // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19 - discriminant(_2) = 2; // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19 + _2 = Test1::C; // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19 _3 = discriminant(_2); // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19 - switchInt(move _3) -> [0: bb3, 1: bb4, 2: bb1, otherwise: bb2]; // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:5: +1:19 + switchInt(move _3) -> [2: bb1, otherwise: bb2]; // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:5: +1:19 @@ -62,8 +61,7 @@ StorageDead(_1); // scope 0 at $DIR/uninhabited_enum_branching.rs:+5:6: +5:7 StorageLive(_6); // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:5: +10:6 StorageLive(_7); // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19 - Deinit(_7); // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19 - discriminant(_7) = 0; // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19 + _7 = Test2::D; // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19 _8 = discriminant(_7); // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19 switchInt(move _8) -> [4: bb8, 5: bb6, otherwise: bb7]; // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:5: +7:19 } diff --git a/tests/mir-opt/uninhabited_enum_branching2.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir b/tests/mir-opt/uninhabited_enum_branching2.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir index c8cd6f6c1ea1..eb2a76ed1d5e 100644 --- a/tests/mir-opt/uninhabited_enum_branching2.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir +++ b/tests/mir-opt/uninhabited_enum_branching2.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir @@ -22,11 +22,8 @@ fn main() -> () { bb0: { StorageLive(_1); // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:9: +1:13 StorageLive(_2); // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:38: +1:46 - Deinit(_2); // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:38: +1:46 - discriminant(_2) = 2; // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:38: +1:46 - Deinit(_1); // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:16: +1:48 - (_1.0: u32) = const 51_u32; // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:16: +1:48 - (_1.1: Test1) = move _2; // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:16: +1:48 + _2 = Test1::C; // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:38: +1:46 + _1 = Plop { xx: const 51_u32, test1: move _2 }; // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:16: +1:48 StorageDead(_2); // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:47: +1:48 StorageLive(_3); // scope 1 at $DIR/uninhabited_enum_branching2.rs:+3:5: +8:6 StorageLive(_4); // scope 1 at $DIR/uninhabited_enum_branching2.rs:+3:11: +3:22 diff --git a/tests/mir-opt/uninhabited_enum_branching2.main.UninhabitedEnumBranching.diff b/tests/mir-opt/uninhabited_enum_branching2.main.UninhabitedEnumBranching.diff index 2aee6d2681d6..4e797774dba7 100644 --- a/tests/mir-opt/uninhabited_enum_branching2.main.UninhabitedEnumBranching.diff +++ b/tests/mir-opt/uninhabited_enum_branching2.main.UninhabitedEnumBranching.diff @@ -23,11 +23,8 @@ bb0: { StorageLive(_1); // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:9: +1:13 StorageLive(_2); // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:38: +1:46 - Deinit(_2); // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:38: +1:46 - discriminant(_2) = 2; // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:38: +1:46 - Deinit(_1); // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:16: +1:48 - (_1.0: u32) = const 51_u32; // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:16: +1:48 - (_1.1: Test1) = move _2; // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:16: +1:48 + _2 = Test1::C; // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:38: +1:46 + _1 = Plop { xx: const 51_u32, test1: move _2 }; // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:16: +1:48 StorageDead(_2); // scope 0 at $DIR/uninhabited_enum_branching2.rs:+1:47: +1:48 StorageLive(_3); // scope 1 at $DIR/uninhabited_enum_branching2.rs:+3:5: +8:6 StorageLive(_4); // scope 1 at $DIR/uninhabited_enum_branching2.rs:+3:11: +3:22 diff --git a/tests/mir-opt/unusual_item_types.Test-X-{constructor#0}.built.after.mir b/tests/mir-opt/unusual_item_types.Test-X-{constructor#0}.built.after.mir index ee029676311b..8b271135cc3f 100644 --- a/tests/mir-opt/unusual_item_types.Test-X-{constructor#0}.built.after.mir +++ b/tests/mir-opt/unusual_item_types.Test-X-{constructor#0}.built.after.mir @@ -4,9 +4,7 @@ fn Test::X(_1: usize) -> Test { let mut _0: Test; // return place in scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6 bb0: { - Deinit(_0); // scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6 - ((_0 as X).0: usize) = move _1; // scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6 - discriminant(_0) = 0; // scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6 + _0 = Test::X(move _1); // scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6 return; // scope 0 at $DIR/unusual_item_types.rs:+0:5: +0:6 } } diff --git a/tests/mir-opt/while_let_loops.change_loop_body.ConstProp.diff b/tests/mir-opt/while_let_loops.change_loop_body.ConstProp.diff index bb1de59d4a73..a4f2d8c84d88 100644 --- a/tests/mir-opt/while_let_loops.change_loop_body.ConstProp.diff +++ b/tests/mir-opt/while_let_loops.change_loop_body.ConstProp.diff @@ -16,8 +16,7 @@ StorageLive(_1); // scope 0 at $DIR/while_let_loops.rs:+1:9: +1:15 _1 = const 0_i32; // scope 0 at $DIR/while_let_loops.rs:+1:18: +1:19 StorageLive(_2); // scope 2 at $DIR/while_let_loops.rs:+2:28: +2:32 - Deinit(_2); // scope 2 at $DIR/while_let_loops.rs:+2:28: +2:32 - discriminant(_2) = 0; // scope 2 at $DIR/while_let_loops.rs:+2:28: +2:32 + _2 = Option::::None; // scope 2 at $DIR/while_let_loops.rs:+2:28: +2:32 - _3 = discriminant(_2); // scope 2 at $DIR/while_let_loops.rs:+2:15: +2:25 - switchInt(move _3) -> [1: bb1, otherwise: bb3]; // scope 2 at $DIR/while_let_loops.rs:+2:15: +2:25 + _3 = const 0_isize; // scope 2 at $DIR/while_let_loops.rs:+2:15: +2:25 diff --git a/tests/run-make/rlib-format-packed-bundled-libs-3/Makefile b/tests/run-make/rlib-format-packed-bundled-libs-3/Makefile new file mode 100644 index 000000000000..62dc1b5f6060 --- /dev/null +++ b/tests/run-make/rlib-format-packed-bundled-libs-3/Makefile @@ -0,0 +1,35 @@ +-include ../../run-make-fulldeps/tools.mk + +# ignore-cross-compile +# only-linux + +# Make sure -Zpacked_bundled_libs-like behavior activates with whole-archive. + +# We're using the llvm-nm instead of the system nm to ensure it is compatible +# with the LLVM bitcode generated by rustc. +NM = "$(LLVM_BIN_DIR)"/llvm-nm + +all: $(call NATIVE_STATICLIB,native_dep_1) $(call NATIVE_STATICLIB,native_dep_2) $(call NATIVE_STATICLIB,native_dep_3) $(call NATIVE_STATICLIB,native_dep_4) + # test cfg with packed bundle + $(RUSTC) rust_dep_cfg.rs --crate-type=rlib -Zpacked_bundled_libs + $(RUSTC) main.rs --extern rust_dep=$(TMPDIR)/librust_dep_cfg.rlib --crate-type=staticlib --cfg should_add + $(AR) t $(TMPDIR)/librust_dep_cfg.rlib | $(CGREP) -e "libnative_dep_1.a" + $(AR) t $(TMPDIR)/librust_dep_cfg.rlib | $(CGREP) -e "libnative_dep_2.a" + $(AR) t $(TMPDIR)/libmain.a | $(CGREP) -e "libnative_dep_1.o" + $(AR) t $(TMPDIR)/libmain.a | $(CGREP) -ev "libnative_dep_2.o" + + + # test bundle with whole_archive + $(RUSTC) rust_dep.rs --crate-type=rlib + $(AR) t $(TMPDIR)/librust_dep.rlib | $(CGREP) -e "native_dep_1" + $(AR) t $(TMPDIR)/librust_dep.rlib | $(CGREP) -e "native_dep_3" + $(AR) t $(TMPDIR)/librust_dep.rlib | $(CGREP) -ev "native_dep_2" + $(AR) t $(TMPDIR)/librust_dep.rlib | $(CGREP) -ev "native_dep_4" + + # Make sure compiler doesn't use files, that it shouldn't know about. + rm $(TMPDIR)/libnative_dep_1.a + rm $(TMPDIR)/libnative_dep_3.a + + $(RUSTC) main.rs --extern rust_dep=$(TMPDIR)/librust_dep.rlib --print link-args > $(TMPDIR)/link_args + cat $(TMPDIR)/link_args | $(CGREP) -ev "native_dep_3" + cat $(TMPDIR)/link_args | $(CGREP) -e "--whole-archive.*native_dep_1.*--whole-archive.*lnative_dep_2.*no-whole-archive.*lnative_dep_4" diff --git a/tests/run-make/rlib-format-packed-bundled-libs-3/main.rs b/tests/run-make/rlib-format-packed-bundled-libs-3/main.rs new file mode 100644 index 000000000000..8d2b8a2859c0 --- /dev/null +++ b/tests/run-make/rlib-format-packed-bundled-libs-3/main.rs @@ -0,0 +1,5 @@ +extern crate rust_dep; + +pub fn main() { + rust_dep::rust_dep(); +} diff --git a/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_1.c b/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_1.c new file mode 100644 index 000000000000..07be8562c928 --- /dev/null +++ b/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_1.c @@ -0,0 +1 @@ +int native_f1() { return 1; } diff --git a/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_2.c b/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_2.c new file mode 100644 index 000000000000..a1b94e40dc04 --- /dev/null +++ b/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_2.c @@ -0,0 +1 @@ +int native_f2() { return 2; } diff --git a/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_3.c b/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_3.c new file mode 100644 index 000000000000..f81f397a4b1d --- /dev/null +++ b/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_3.c @@ -0,0 +1 @@ +int native_f3() { return 3; } diff --git a/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_4.c b/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_4.c new file mode 100644 index 000000000000..14d41d60b1fe --- /dev/null +++ b/tests/run-make/rlib-format-packed-bundled-libs-3/native_dep_4.c @@ -0,0 +1 @@ +int native_f4() { return 4; } diff --git a/tests/run-make/rlib-format-packed-bundled-libs-3/rust_dep.rs b/tests/run-make/rlib-format-packed-bundled-libs-3/rust_dep.rs new file mode 100644 index 000000000000..abd846b6862d --- /dev/null +++ b/tests/run-make/rlib-format-packed-bundled-libs-3/rust_dep.rs @@ -0,0 +1,16 @@ +#![feature(packed_bundled_libs)] + +#[link(name = "native_dep_1", kind = "static", modifiers = "+whole-archive,+bundle")] +extern "C" {} + +#[link(name = "native_dep_2", kind = "static", modifiers = "+whole-archive,-bundle")] +extern "C" {} + +#[link(name = "native_dep_3", kind = "static", modifiers = "+bundle")] +extern "C" {} + +#[link(name = "native_dep_4", kind = "static", modifiers = "-bundle")] +extern "C" {} + +#[no_mangle] +pub fn rust_dep() {} diff --git a/tests/run-make/rlib-format-packed-bundled-libs-3/rust_dep_cfg.rs b/tests/run-make/rlib-format-packed-bundled-libs-3/rust_dep_cfg.rs new file mode 100644 index 000000000000..506ca62a8a6b --- /dev/null +++ b/tests/run-make/rlib-format-packed-bundled-libs-3/rust_dep_cfg.rs @@ -0,0 +1,10 @@ +#![feature(link_cfg)] + +#[link(name = "native_dep_1", kind = "static", cfg(should_add))] +extern "C" {} + +#[link(name = "native_dep_2", kind = "static", cfg(should_not_add))] +extern "C" {} + +#[no_mangle] +pub fn rust_dep() {} diff --git a/tests/rustdoc-gui/src/test_docs/lib.rs b/tests/rustdoc-gui/src/test_docs/lib.rs index 51250439694b..6ad1e8b4f673 100644 --- a/tests/rustdoc-gui/src/test_docs/lib.rs +++ b/tests/rustdoc-gui/src/test_docs/lib.rs @@ -340,7 +340,7 @@ pub mod details { pub mod doc_block_table { pub trait DocBlockTableTrait { - fn func(); + fn foo(); } /// Struct doc. @@ -359,7 +359,7 @@ pub mod doc_block_table { /// | header1 | header2 | /// |--------------------------|--------------------------| /// | Lorem Ipsum, Lorem Ipsum | Lorem Ipsum, Lorem Ipsum | - fn func() { + fn foo() { println!(); } } @@ -474,3 +474,15 @@ impl TypeWithImplDoc { /// /// pub mod codeblock_sub {} +pub mod search_results { + + pub struct SearchResults { + pub foo: i32, + } + + #[macro_export] + macro_rules! foo { + () => {}; + } + +} diff --git a/tests/rustdoc-js-std/regex.js b/tests/rustdoc-js-std/regex.js new file mode 100644 index 000000000000..a6843c595f7a --- /dev/null +++ b/tests/rustdoc-js-std/regex.js @@ -0,0 +1,10 @@ +// exact-check + +// https://github.com/rust-lang/rust/issues/103357 +const QUERY = 'regex'; + +const EXPECTED = { + 'others': [], + 'in_args': [], + 'returned': [], +}; diff --git a/tests/rustdoc-js-std/typed-query.js b/tests/rustdoc-js-std/typed-query.js index fd5c5489d79c..eeb3e1888695 100644 --- a/tests/rustdoc-js-std/typed-query.js +++ b/tests/rustdoc-js-std/typed-query.js @@ -9,9 +9,5 @@ const EXPECTED = { { 'path': 'std', 'name': 'println' }, { 'path': 'std', 'name': 'eprint' }, { 'path': 'std', 'name': 'eprintln' }, - { 'path': 'std::pin', 'name': 'pin' }, - { 'path': 'std::future', 'name': 'join' }, - { 'path': 'std', 'name': 'line' }, - { 'path': 'std', 'name': 'write' }, ], }; diff --git a/tests/rustdoc-js/doc-alias.js b/tests/rustdoc-js/doc-alias.js index 7bb0cbe388fe..62c8e7a74b94 100644 --- a/tests/rustdoc-js/doc-alias.js +++ b/tests/rustdoc-js/doc-alias.js @@ -1,5 +1,3 @@ -// exact-check - const QUERY = [ 'StructItem', 'StructFieldItem', diff --git a/tests/rustdoc-js/module-substring.js b/tests/rustdoc-js/module-substring.js index a446c39ebad5..f17a97f13dc7 100644 --- a/tests/rustdoc-js/module-substring.js +++ b/tests/rustdoc-js/module-substring.js @@ -4,6 +4,5 @@ const EXPECTED = { 'others': [ { 'path': 'module_substring::Sig', 'name': 'pc' }, { 'path': 'module_substring::Si', 'name': 'pc' }, - { 'path': 'module_substring::Si', 'name': 'pa' }, ], }; diff --git a/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.rs b/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.rs index 4b1e04234c87..939da186fbcd 100644 --- a/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.rs +++ b/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.rs @@ -1,12 +1,10 @@ -// check-pass // normalize-stderr-test: "`.*`" -> "`DEF_ID`" // normalize-stdout-test: "`.*`" -> "`DEF_ID`" // edition:2018 pub async fn f() -> impl std::fmt::Debug { - // rustdoc doesn't care that this is infinitely sized #[derive(Debug)] - enum E { + enum E { //~ ERROR This(E), Unit, } diff --git a/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.stderr b/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.stderr new file mode 100644 index 000000000000..aff7402bc91c --- /dev/null +++ b/tests/rustdoc-ui/infinite-recursive-type-impl-trait-return.stderr @@ -0,0 +1,16 @@ +error[E0072]: recursive type `DEF_ID` has infinite size + --> $DIR/infinite-recursive-type-impl-trait-return.rs:7:5 + | +LL | enum E { + | ^^^^^^ +LL | This(E), + | - recursive without indirection + | +help: insert some indirection (e.g., a `DEF_ID`) to break the cycle + | +LL | This(Box), + | ++++ + + +error: aborting due to previous error + +For more information about this error, try `DEF_ID`. diff --git a/tests/rustdoc-ui/infinite-recursive-type-impl-trait.rs b/tests/rustdoc-ui/infinite-recursive-type-impl-trait.rs index ac79582fb3f0..ac5172574986 100644 --- a/tests/rustdoc-ui/infinite-recursive-type-impl-trait.rs +++ b/tests/rustdoc-ui/infinite-recursive-type-impl-trait.rs @@ -1,8 +1,5 @@ -// check-pass - fn f() -> impl Sized { - // rustdoc doesn't care that this is infinitely sized - enum E { + enum E { //~ ERROR V(E), } unimplemented!() diff --git a/tests/rustdoc-ui/infinite-recursive-type-impl-trait.stderr b/tests/rustdoc-ui/infinite-recursive-type-impl-trait.stderr new file mode 100644 index 000000000000..a61577bd14af --- /dev/null +++ b/tests/rustdoc-ui/infinite-recursive-type-impl-trait.stderr @@ -0,0 +1,16 @@ +error[E0072]: recursive type `f::E` has infinite size + --> $DIR/infinite-recursive-type-impl-trait.rs:2:5 + | +LL | enum E { + | ^^^^^^ +LL | V(E), + | - recursive without indirection + | +help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle + | +LL | V(Box), + | ++++ + + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0072`. diff --git a/tests/rustdoc/auxiliary/inline-default-methods.rs b/tests/rustdoc/auxiliary/inline-default-methods.rs index 8a636f449210..f06a20b27dce 100644 --- a/tests/rustdoc/auxiliary/inline-default-methods.rs +++ b/tests/rustdoc/auxiliary/inline-default-methods.rs @@ -4,3 +4,15 @@ pub trait Foo { fn bar(&self); fn foo(&mut self) {} } + +pub trait Bar { + fn bar(&self); + fn foo1(&mut self) {} + fn foo2(&mut self) {} +} + +pub trait Baz { + fn bar1(&self); + fn bar2(&self); + fn foo(&mut self) {} +} diff --git a/tests/rustdoc/decl-trailing-whitespace.declaration.html b/tests/rustdoc/decl-trailing-whitespace.declaration.html index 02b51b344619..a2500de79a09 100644 --- a/tests/rustdoc/decl-trailing-whitespace.declaration.html +++ b/tests/rustdoc/decl-trailing-whitespace.declaration.html @@ -1,7 +1,9 @@ pub trait Write { + // Required methods fn poll_write(
        self: Option<String>,
        cx: &mut Option<String>,
        buf: &mut [usize]
    ) -> Option<Result<usize, Error>>; fn poll_flush(
        self: Option<String>,
        cx: &mut Option<String>
    ) -> Option<Result<(), Error>>; fn poll_close(
        self: Option<String>,
        cx: &mut Option<String>
    ) -> Option<Result<(), Error>>; + // Provided method fn poll_write_vectored(
        self: Option<String>,
        cx: &mut Option<String>,
        bufs: &[usize]
    ) -> Option<Result<usize, Error>> { ... } -} \ No newline at end of file +} diff --git a/tests/rustdoc/doc-notable_trait.some-struct-new.html b/tests/rustdoc/doc-notable_trait.some-struct-new.html index 384be6689540..e8f4f6000457 100644 --- a/tests/rustdoc/doc-notable_trait.some-struct-new.html +++ b/tests/rustdoc/doc-notable_trait.some-struct-new.html @@ -1 +1 @@ - \ No newline at end of file + \ No newline at end of file diff --git a/tests/rustdoc/doc-notable_trait.wrap-me.html b/tests/rustdoc/doc-notable_trait.wrap-me.html index 0cc1ee10fd33..e7909669b150 100644 --- a/tests/rustdoc/doc-notable_trait.wrap-me.html +++ b/tests/rustdoc/doc-notable_trait.wrap-me.html @@ -1 +1 @@ - \ No newline at end of file + \ No newline at end of file diff --git a/tests/rustdoc/hidden-private.rs b/tests/rustdoc/hidden-private.rs new file mode 100644 index 000000000000..834ba5231a1e --- /dev/null +++ b/tests/rustdoc/hidden-private.rs @@ -0,0 +1,50 @@ +// This is a regression test for . +// It ensures that the items in the `doc(hidden)` const block don't show up in the +// generated docs. + +// compile-flags: --document-private-items + +#![crate_name = "foo"] + +// @has 'foo/index.html' +// @count - '//*[@class="item-table"]//a[@class="struct"]' 2 +// @count - '//*[@class="item-table"]//a[@class="trait"]' 1 +// @count - '//*[@class="item-table"]//a[@class="macro"]' 0 +#[doc(hidden)] +const _: () = { + macro_rules! stry { + () => {}; + } + + struct ShouldBeHidden; + + // @has 'foo/struct.Foo.html' + // @!has - '//*[@class="code-header"]' 'impl Bar for Foo' + #[doc(hidden)] + impl Bar for Foo { + fn bar(&self) { + struct SHouldAlsoBeHidden; + } + } + + // @has 'foo/struct.Private.html' + // @has - '//*[@id="impl-Bar-for-Private"]/*[@class="code-header"]' 'impl Bar for Private' + // @has - '//*[@id="method.bar"]/*[@class="code-header"]' 'fn bar(&self)' + impl Bar for Private { + fn bar(&self) {} + } + + // @has - '//*[@id="impl-Private"]/*[@class="code-header"]' 'impl Private' + // @has - '//*[@id="method.tralala"]/*[@class="code-header"]' 'fn tralala()' + impl Private { + fn tralala() {} + } +}; + + +struct Private; +pub struct Foo; + +pub trait Bar { + fn bar(&self); +} diff --git a/tests/rustdoc/impl-in-const-block.rs b/tests/rustdoc/impl-in-const-block.rs new file mode 100644 index 000000000000..b44e71352466 --- /dev/null +++ b/tests/rustdoc/impl-in-const-block.rs @@ -0,0 +1,43 @@ +// Regression test for #83026. +// The goal of this test is to ensure that impl blocks inside +// const expressions are documented as well. + +#![crate_name = "foo"] + +// @has 'foo/struct.A.html' +// @has - '//*[@id="method.new"]/*[@class="code-header"]' 'pub fn new() -> A' +// @has - '//*[@id="method.bar"]/*[@class="code-header"]' 'pub fn bar(&self)' +// @has - '//*[@id="method.woo"]/*[@class="code-header"]' 'pub fn woo(&self)' +// @has - '//*[@id="method.yoo"]/*[@class="code-header"]' 'pub fn yoo()' +// @has - '//*[@id="method.yuu"]/*[@class="code-header"]' 'pub fn yuu()' +pub struct A; + +const _: () = { + impl A { + const FOO: () = { + impl A { + pub fn woo(&self) {} + } + }; + + pub fn new() -> A { + A + } + } +}; +pub const X: () = { + impl A { + pub fn bar(&self) {} + } +}; + +fn foo() { + impl A { + pub fn yoo() {} + } + const _: () = { + impl A { + pub fn yuu() {} + } + }; +} diff --git a/tests/rustdoc/inline-default-methods.rs b/tests/rustdoc/inline-default-methods.rs index e6468316f583..7706cb139ac9 100644 --- a/tests/rustdoc/inline-default-methods.rs +++ b/tests/rustdoc/inline-default-methods.rs @@ -4,6 +4,18 @@ extern crate inline_default_methods; // @has inline_default_methods/trait.Foo.html -// @has - '//pre[@class="rust item-decl"]' 'fn bar(&self);' -// @has - '//pre[@class="rust item-decl"]' 'fn foo(&mut self) { ... }' +// @has - '//pre[@class="rust item-decl"]' '// Required method fn bar(&self);' +// @has - '//pre[@class="rust item-decl"]' '// Provided method fn foo(&mut self)' pub use inline_default_methods::Foo; + +// @has inline_default_methods/trait.Bar.html +// @has - '//pre[@class="rust item-decl"]' '// Required method fn bar(&self);' +// @has - '//pre[@class="rust item-decl"]' '// Provided methods fn foo1(&mut self)' +// @has - '//pre[@class="rust item-decl"]' 'fn foo2(&mut self)' +pub use inline_default_methods::Bar; + +// @has inline_default_methods/trait.Baz.html +// @has - '//pre[@class="rust item-decl"]' '// Required methods fn bar1(&self);' +// @has - '//pre[@class="rust item-decl"]' 'fn bar2(&self);' +// @has - '//pre[@class="rust item-decl"]' '// Provided method fn foo(&mut self)' +pub use inline_default_methods::Baz; diff --git a/tests/rustdoc/issue-85454.rs b/tests/rustdoc/issue-85454.rs index 2d410a5974af..5a49a9d06519 100644 --- a/tests/rustdoc/issue-85454.rs +++ b/tests/rustdoc/issue-85454.rs @@ -5,7 +5,7 @@ extern crate issue_85454; // @has foo/trait.FromResidual.html -// @has - '//pre[@class="rust item-decl"]' 'pub trait FromResidual::Residual> { fn from_residual(residual: R) -> Self; }' +// @has - '//pre[@class="rust item-decl"]' 'pub trait FromResidual::Residual> { // Required method fn from_residual(residual: R) -> Self; }' pub trait FromResidual::Residual> { fn from_residual(residual: R) -> Self; } @@ -24,6 +24,6 @@ pub enum ControlFlow { pub mod reexport { // @has foo/reexport/trait.FromResidual.html - // @has - '//pre[@class="rust item-decl"]' 'pub trait FromResidual::Residual> { fn from_residual(residual: R) -> Self; }' + // @has - '//pre[@class="rust item-decl"]' 'pub trait FromResidual::Residual> { // Required method fn from_residual(residual: R) -> Self; }' pub use issue_85454::*; } diff --git a/tests/rustdoc/redirect.rs b/tests/rustdoc/redirect.rs index e3a14c7a74a0..5b7a76e1a773 100644 --- a/tests/rustdoc/redirect.rs +++ b/tests/rustdoc/redirect.rs @@ -9,9 +9,10 @@ pub trait Foo {} // @has redirect/index.html // @has - '//code' 'pub use reexp_stripped::Bar' // @has - '//code/a' 'Bar' +// @has - '//a[@href="../reexp_stripped/hidden/struct.Bar.html"]' 'Bar' // @has reexp_stripped/hidden/struct.Bar.html -// @has - '//p/a' '../../reexp_stripped/struct.Bar.html' // @has 'reexp_stripped/struct.Bar.html' +// @has - '//a[@href="struct.Bar.html"]' 'Bar' #[doc(no_inline)] pub use reexp_stripped::Bar; impl Foo for Bar {} diff --git a/tests/rustdoc/where.SWhere_TraitWhere_item-decl.html b/tests/rustdoc/where.SWhere_TraitWhere_item-decl.html index 11df902f3720..858bc142f66e 100644 --- a/tests/rustdoc/where.SWhere_TraitWhere_item-decl.html +++ b/tests/rustdoc/where.SWhere_TraitWhere_item-decl.html @@ -1,8 +1,8 @@ 
pub trait TraitWhere {
-    type Item<'a>
    where
        Self: 'a;
+    type Item<'a>
       where Self: 'a;
 
-    fn func(self)
    where
        Self: Sized,
-    { ... }
-    fn lines(self) -> Lines<Self>
    where
        Self: Sized,
-    { ... }
+    // Provided methods
+    fn func(self)
       where Self: Sized { ... }
+    fn lines(self) -> Lines<Self>
       where Self: Sized { ... }
+    fn merge<T>(self, a: T)
       where Self: Sized,
             T: Sized { ... }
 }
\ No newline at end of file diff --git a/tests/rustdoc/where.rs b/tests/rustdoc/where.rs index 4c34c7e51d93..af3239b69470 100644 --- a/tests/rustdoc/where.rs +++ b/tests/rustdoc/where.rs @@ -41,6 +41,12 @@ pub trait TraitWhere { where Self: Sized, { todo!() } + + fn merge(self, a: T) + where + Self: Sized, + T: Sized, + { todo!() } } // @has foo/struct.Echo.html '//*[@class="impl"]//h3[@class="code-header"]' \ diff --git a/tests/rustdoc/whitespace-after-where-clause.enum2.html b/tests/rustdoc/whitespace-after-where-clause.enum2.html index 7bc9b780197b..065ce757de1a 100644 --- a/tests/rustdoc/whitespace-after-where-clause.enum2.html +++ b/tests/rustdoc/whitespace-after-where-clause.enum2.html @@ -1,4 +1,4 @@ -
pub enum Cow2<'a, B: ?Sized + ToOwned<dyn Clone> + 'a> {
+
pub enum Cow2<'a, B: ?Sized + ToOwned<dyn Clone> + 'a> {
     Borrowed(&'a B),
     Whatever(u32),
 }

\ No newline at end of file
diff --git a/tests/rustdoc/whitespace-after-where-clause.struct2.html b/tests/rustdoc/whitespace-after-where-clause.struct2.html
index d872d516c094..c647e8d71218 100644
--- a/tests/rustdoc/whitespace-after-where-clause.struct2.html
+++ b/tests/rustdoc/whitespace-after-where-clause.struct2.html
@@ -1,4 +1,4 @@
-
pub struct Struct2<'a, B: ?Sized + ToOwned<dyn Clone> + 'a> {
+
pub struct Struct2<'a, B: ?Sized + ToOwned<dyn Clone> + 'a> {
     pub a: &'a B,
     pub b: u32,
 }

\ No newline at end of file
diff --git a/tests/rustdoc/whitespace-after-where-clause.trait.html b/tests/rustdoc/whitespace-after-where-clause.trait.html
index bc3653de52d1..8a78e82dc71d 100644
--- a/tests/rustdoc/whitespace-after-where-clause.trait.html
+++ b/tests/rustdoc/whitespace-after-where-clause.trait.html
@@ -1,6 +1,7 @@
 
pub trait ToOwned<T>where
    T: Clone,{
     type Owned;
 
+    // Required methods
     fn to_owned(&self) -> Self::Owned;
     fn whatever(&self) -> T;
 }

\ No newline at end of file
diff --git a/tests/rustdoc/whitespace-after-where-clause.trait2.html b/tests/rustdoc/whitespace-after-where-clause.trait2.html
index eda4ca72acc1..e6fafde1effe 100644
--- a/tests/rustdoc/whitespace-after-where-clause.trait2.html
+++ b/tests/rustdoc/whitespace-after-where-clause.trait2.html
@@ -1,6 +1,7 @@
 
pub trait ToOwned2<T: Clone> {
     type Owned;
 
+    // Required methods
     fn to_owned(&self) -> Self::Owned;
     fn whatever(&self) -> T;
 }

\ No newline at end of file
diff --git a/tests/rustdoc/whitespace-after-where-clause.union2.html b/tests/rustdoc/whitespace-after-where-clause.union2.html
index fc78e9b6039b..66ad30c92001 100644
--- a/tests/rustdoc/whitespace-after-where-clause.union2.html
+++ b/tests/rustdoc/whitespace-after-where-clause.union2.html
@@ -1,3 +1,3 @@
-
pub union Union2<'a, B: ?Sized + ToOwned<dyn Clone> + 'a> {
+
pub union Union2<'a, B: ?Sized + ToOwned<dyn Clone> + 'a> {
     /* private fields */
 }

\ No newline at end of file
diff --git a/tests/ui/async-await/future-sizes/future-as-arg.rs b/tests/ui/async-await/future-sizes/future-as-arg.rs
new file mode 100644
index 000000000000..93c69b05254d
--- /dev/null
+++ b/tests/ui/async-await/future-sizes/future-as-arg.rs
@@ -0,0 +1,16 @@
+// edition: 2021
+// run-pass
+
+async fn test(_arg: [u8; 16]) {}
+
+async fn use_future(fut: impl std::future::Future) {
+    fut.await
+}
+
+fn main() {
+    let actual = std::mem::size_of_val(
+        &use_future(use_future(use_future(use_future(use_future(test([0; 16])))))));
+    // Not using an exact number in case it slightly changes over different commits
+    let expected = 550;
+    assert!(actual > expected, "expected: >{expected}, actual: {actual}");
+}
diff --git a/tests/ui/async-await/future-sizes/large-arg.rs b/tests/ui/async-await/future-sizes/large-arg.rs
new file mode 100644
index 000000000000..7e7ff9d8d00e
--- /dev/null
+++ b/tests/ui/async-await/future-sizes/large-arg.rs
@@ -0,0 +1,18 @@
+// compile-flags: -Z print-type-sizes --crate-type=lib
+// edition: 2021
+// build-pass
+// ignore-pass
+
+pub async fn test() {
+    let _ = a([0u8; 1024]).await;
+}
+
+pub async fn a(t: T) -> T {
+    b(t).await
+}
+async fn b(t: T) -> T {
+    c(t).await
+}
+async fn c(t: T) -> T {
+    t
+}
diff --git a/tests/ui/async-await/future-sizes/large-arg.stdout b/tests/ui/async-await/future-sizes/large-arg.stdout
new file mode 100644
index 000000000000..91db4b1531f5
--- /dev/null
+++ b/tests/ui/async-await/future-sizes/large-arg.stdout
@@ -0,0 +1,60 @@
+print-type-size type: `[async fn body@$DIR/large-arg.rs:6:21: 8:2]`: 3076 bytes, alignment: 1 bytes
+print-type-size     discriminant: 1 bytes
+print-type-size     variant `Unresumed`: 0 bytes
+print-type-size     variant `Suspend0`: 3075 bytes
+print-type-size         local `.__awaitee`: 3075 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size     variant `Returned`: 0 bytes
+print-type-size     variant `Panicked`: 0 bytes
+print-type-size type: `[async fn body@$DIR/large-arg.rs:10:30: 12:2]`: 3075 bytes, alignment: 1 bytes
+print-type-size     discriminant: 1 bytes
+print-type-size     variant `Unresumed`: 1024 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size     variant `Suspend0`: 3074 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size         local `.__awaitee`: 2050 bytes
+print-type-size     variant `Returned`: 1024 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size     variant `Panicked`: 1024 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size type: `std::mem::ManuallyDrop<[async fn body@$DIR/large-arg.rs:10:30: 12:2]>`: 3075 bytes, alignment: 1 bytes
+print-type-size     field `.value`: 3075 bytes
+print-type-size type: `std::mem::MaybeUninit<[async fn body@$DIR/large-arg.rs:10:30: 12:2]>`: 3075 bytes, alignment: 1 bytes
+print-type-size     variant `MaybeUninit`: 3075 bytes
+print-type-size         field `.uninit`: 0 bytes
+print-type-size         field `.value`: 3075 bytes
+print-type-size type: `[async fn body@$DIR/large-arg.rs:13:26: 15:2]`: 2050 bytes, alignment: 1 bytes
+print-type-size     discriminant: 1 bytes
+print-type-size     variant `Unresumed`: 1024 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size     variant `Suspend0`: 2049 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size         local `.__awaitee`: 1025 bytes
+print-type-size     variant `Returned`: 1024 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size     variant `Panicked`: 1024 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size type: `std::mem::ManuallyDrop<[async fn body@$DIR/large-arg.rs:13:26: 15:2]>`: 2050 bytes, alignment: 1 bytes
+print-type-size     field `.value`: 2050 bytes
+print-type-size type: `std::mem::MaybeUninit<[async fn body@$DIR/large-arg.rs:13:26: 15:2]>`: 2050 bytes, alignment: 1 bytes
+print-type-size     variant `MaybeUninit`: 2050 bytes
+print-type-size         field `.uninit`: 0 bytes
+print-type-size         field `.value`: 2050 bytes
+print-type-size type: `[async fn body@$DIR/large-arg.rs:16:26: 18:2]`: 1025 bytes, alignment: 1 bytes
+print-type-size     discriminant: 1 bytes
+print-type-size     variant `Unresumed`: 1024 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size     variant `Returned`: 1024 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size     variant `Panicked`: 1024 bytes
+print-type-size         upvar `.t`: 1024 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size type: `std::mem::ManuallyDrop<[async fn body@$DIR/large-arg.rs:16:26: 18:2]>`: 1025 bytes, alignment: 1 bytes
+print-type-size     field `.value`: 1025 bytes
+print-type-size type: `std::mem::MaybeUninit<[async fn body@$DIR/large-arg.rs:16:26: 18:2]>`: 1025 bytes, alignment: 1 bytes
+print-type-size     variant `MaybeUninit`: 1025 bytes
+print-type-size         field `.uninit`: 0 bytes
+print-type-size         field `.value`: 1025 bytes
+print-type-size type: `std::task::Poll<[u8; 1024]>`: 1025 bytes, alignment: 1 bytes
+print-type-size     discriminant: 1 bytes
+print-type-size     variant `Ready`: 1024 bytes
+print-type-size         field `.0`: 1024 bytes
+print-type-size     variant `Pending`: 0 bytes
diff --git a/tests/ui/async-await/no-const-async.stderr b/tests/ui/async-await/no-const-async.stderr
index c5bd520aaea0..71c228958f6f 100644
--- a/tests/ui/async-await/no-const-async.stderr
+++ b/tests/ui/async-await/no-const-async.stderr
@@ -28,8 +28,8 @@ note: ...which requires const checking `x`...
    |
 LL | pub const async fn x() {}
    | ^^^^^^^^^^^^^^^^^^^^^^
-   = note: ...which requires computing whether `impl core::future::future::Future` is freeze...
-   = note: ...which requires evaluating trait selection obligation `impl core::future::future::Future: core::marker::Freeze`...
+   = note: ...which requires computing whether `x::{opaque#0}` is freeze...
+   = note: ...which requires evaluating trait selection obligation `x::{opaque#0}: core::marker::Freeze`...
    = note: ...which again requires computing type of `x::{opaque#0}`, completing the cycle
 note: cycle used when checking item types in top-level module
   --> $DIR/no-const-async.rs:4:1
diff --git a/tests/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc.stderr b/tests/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc.stderr
index ce9f7aa050a0..dd0817ff2331 100644
--- a/tests/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc.stderr
+++ b/tests/ui/borrowck/borrowck-borrow-mut-base-ptr-in-aliasable-loc.stderr
@@ -1,11 +1,13 @@
 error[E0594]: cannot assign to `**t1`, which is behind a `&` reference
   --> $DIR/borrowck-borrow-mut-base-ptr-in-aliasable-loc.rs:9:5
    |
-LL |     let t1 = t0;
-   |         -- consider changing this binding's type to be: `&mut &mut isize`
-LL |     let p: &isize = &**t0;
 LL |     **t1 = 22;
    |     ^^^^^^^^^ `t1` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider specifying this binding's type
+   |
+LL |     let t1: &mut &mut isize = t0;
+   |           +++++++++++++++++
 
 error[E0502]: cannot borrow `**t0` as immutable because it is also borrowed as mutable
   --> $DIR/borrowck-borrow-mut-base-ptr-in-aliasable-loc.rs:14:21
diff --git a/tests/ui/borrowck/issue-85765.rs b/tests/ui/borrowck/issue-85765.rs
index 1598cd5d3c86..76e0b5173541 100644
--- a/tests/ui/borrowck/issue-85765.rs
+++ b/tests/ui/borrowck/issue-85765.rs
@@ -1,7 +1,7 @@
 fn main() {
     let mut test = Vec::new();
     let rofl: &Vec> = &mut test;
-    //~^ NOTE consider changing this binding's type to be
+    //~^ HELP consider changing this binding's type
     rofl.push(Vec::new());
     //~^ ERROR cannot borrow `*rofl` as mutable, as it is behind a `&` reference
     //~| NOTE `rofl` is a `&` reference, so the data it refers to cannot be borrowed as mutable
@@ -15,14 +15,14 @@ fn main() {
 
     #[rustfmt::skip]
     let x: &usize = &mut{0};
-    //~^ NOTE consider changing this binding's type to be
+    //~^ HELP consider changing this binding's type
     *x = 1;
     //~^ ERROR cannot assign to `*x`, which is behind a `&` reference
     //~| NOTE `x` is a `&` reference, so the data it refers to cannot be written
 
     #[rustfmt::skip]
     let y: &usize = &mut(0);
-    //~^ NOTE consider changing this binding's type to be
+    //~^ HELP consider changing this binding's type
     *y = 1;
     //~^ ERROR cannot assign to `*y`, which is behind a `&` reference
     //~| NOTE `y` is a `&` reference, so the data it refers to cannot be written
diff --git a/tests/ui/borrowck/issue-85765.stderr b/tests/ui/borrowck/issue-85765.stderr
index 7da7dba68ab7..b4bb128cbb42 100644
--- a/tests/ui/borrowck/issue-85765.stderr
+++ b/tests/ui/borrowck/issue-85765.stderr
@@ -1,11 +1,13 @@
 error[E0596]: cannot borrow `*rofl` as mutable, as it is behind a `&` reference
   --> $DIR/issue-85765.rs:5:5
    |
-LL |     let rofl: &Vec> = &mut test;
-   |         ---- consider changing this binding's type to be: `&mut Vec>`
-LL |
 LL |     rofl.push(Vec::new());
    |     ^^^^^^^^^^^^^^^^^^^^^ `rofl` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider changing this binding's type
+   |
+LL |     let rofl: &mut Vec> = &mut test;
+   |               ~~~~~~~~~~~~~~~~~~
 
 error[E0594]: cannot assign to `*r`, which is behind a `&` reference
   --> $DIR/issue-85765.rs:12:5
@@ -21,20 +23,24 @@ LL |     let r = &mut mutvar;
 error[E0594]: cannot assign to `*x`, which is behind a `&` reference
   --> $DIR/issue-85765.rs:19:5
    |
-LL |     let x: &usize = &mut{0};
-   |         - consider changing this binding's type to be: `&mut usize`
-LL |
 LL |     *x = 1;
    |     ^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this binding's type
+   |
+LL |     let x: &mut usize = &mut{0};
+   |            ~~~~~~~~~~
 
 error[E0594]: cannot assign to `*y`, which is behind a `&` reference
   --> $DIR/issue-85765.rs:26:5
    |
-LL |     let y: &usize = &mut(0);
-   |         - consider changing this binding's type to be: `&mut usize`
-LL |
 LL |     *y = 1;
    |     ^^^^^^ `y` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider changing this binding's type
+   |
+LL |     let y: &mut usize = &mut(0);
+   |            ~~~~~~~~~~
 
 error: aborting due to 4 previous errors
 
diff --git a/tests/ui/borrowck/issue-91206.rs b/tests/ui/borrowck/issue-91206.rs
index 67407c1eae3c..e062a253767d 100644
--- a/tests/ui/borrowck/issue-91206.rs
+++ b/tests/ui/borrowck/issue-91206.rs
@@ -9,7 +9,7 @@ impl TestClient {
 fn main() {
     let client = TestClient;
     let inner = client.get_inner_ref();
-    //~^ NOTE consider changing this binding's type to be
+    //~^ HELP consider specifying this binding's type
     inner.clear();
     //~^ ERROR cannot borrow `*inner` as mutable, as it is behind a `&` reference [E0596]
     //~| NOTE `inner` is a `&` reference, so the data it refers to cannot be borrowed as mutable
diff --git a/tests/ui/borrowck/issue-91206.stderr b/tests/ui/borrowck/issue-91206.stderr
index 12d8d27c5f02..6653d497873e 100644
--- a/tests/ui/borrowck/issue-91206.stderr
+++ b/tests/ui/borrowck/issue-91206.stderr
@@ -1,11 +1,13 @@
 error[E0596]: cannot borrow `*inner` as mutable, as it is behind a `&` reference
   --> $DIR/issue-91206.rs:13:5
    |
-LL |     let inner = client.get_inner_ref();
-   |         ----- consider changing this binding's type to be: `&mut Vec`
-LL |
 LL |     inner.clear();
    |     ^^^^^^^^^^^^^ `inner` is a `&` reference, so the data it refers to cannot be borrowed as mutable
+   |
+help: consider specifying this binding's type
+   |
+LL |     let inner: &mut Vec = client.get_inner_ref();
+   |              +++++++++++++++++
 
 error: aborting due to previous error
 
diff --git a/tests/ui/borrowck/issue-92015.stderr b/tests/ui/borrowck/issue-92015.stderr
index 62b1183e71b4..ea4f9abb87d9 100644
--- a/tests/ui/borrowck/issue-92015.stderr
+++ b/tests/ui/borrowck/issue-92015.stderr
@@ -1,10 +1,13 @@
 error[E0594]: cannot assign to `*foo`, which is behind a `&` reference
   --> $DIR/issue-92015.rs:6:5
    |
-LL |     let foo = Some(&0).unwrap();
-   |         --- consider changing this binding's type to be: `&mut i32`
 LL |     *foo = 1;
    |     ^^^^^^^^ `foo` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider specifying this binding's type
+   |
+LL |     let foo: &mut i32 = Some(&0).unwrap();
+   |            ++++++++++
 
 error: aborting due to previous error
 
diff --git a/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.fixed b/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.fixed
new file mode 100644
index 000000000000..1a08470064cd
--- /dev/null
+++ b/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.fixed
@@ -0,0 +1,26 @@
+// run-rustfix
+#![allow(dead_code, path_statements)]
+fn foo1(s: &str) -> impl Iterator + '_ {
+    None.into_iter()
+        .flat_map(move |()| s.chars().map(move |c| format!("{}{}", c, s)))
+        //~^ ERROR captured variable cannot escape `FnMut` closure body
+        //~| HELP consider adding 'move' keyword before the nested closure
+}
+
+fn foo2(s: &str) -> impl Sized + '_ {
+    move |()| s.chars().map(move |c| format!("{}{}", c, s))
+    //~^ ERROR lifetime may not live long enough
+    //~| HELP consider adding 'move' keyword before the nested closure
+}
+
+pub struct X;
+pub fn foo3<'a>(
+    bar: &'a X,
+) -> impl Iterator + 'a {
+    Some(()).iter().flat_map(move |()| {
+        Some(()).iter().map(move |()| { bar; }) //~ ERROR captured variable cannot escape
+        //~^ HELP consider adding 'move' keyword before the nested closure
+    })
+}
+
+fn main() {}
diff --git a/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.rs b/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.rs
index 95847d8d301a..b93292e3589d 100644
--- a/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.rs
+++ b/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.rs
@@ -1,3 +1,5 @@
+// run-rustfix
+#![allow(dead_code, path_statements)]
 fn foo1(s: &str) -> impl Iterator + '_ {
     None.into_iter()
         .flat_map(move |()| s.chars().map(|c| format!("{}{}", c, s)))
@@ -11,4 +13,14 @@ fn foo2(s: &str) -> impl Sized + '_ {
     //~| HELP consider adding 'move' keyword before the nested closure
 }
 
+pub struct X;
+pub fn foo3<'a>(
+    bar: &'a X,
+) -> impl Iterator + 'a {
+    Some(()).iter().flat_map(move |()| {
+        Some(()).iter().map(|()| { bar; }) //~ ERROR captured variable cannot escape
+        //~^ HELP consider adding 'move' keyword before the nested closure
+    })
+}
+
 fn main() {}
diff --git a/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.stderr b/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.stderr
index 2eae614a2f59..776c338deacf 100644
--- a/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.stderr
+++ b/tests/ui/borrowck/issue-95079-missing-move-in-nested-closure.stderr
@@ -1,5 +1,5 @@
 error: captured variable cannot escape `FnMut` closure body
-  --> $DIR/issue-95079-missing-move-in-nested-closure.rs:3:29
+  --> $DIR/issue-95079-missing-move-in-nested-closure.rs:5:29
    |
 LL | fn foo1(s: &str) -> impl Iterator + '_ {
    |         - variable defined here
@@ -7,7 +7,7 @@ LL |     None.into_iter()
 LL |         .flat_map(move |()| s.chars().map(|c| format!("{}{}", c, s)))
    |                           - -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |                           | |
-   |                           | returns a reference to a captured variable which escapes the closure body
+   |                           | returns a closure that contains a reference to a captured variable, which then escapes the closure body
    |                           | variable captured here
    |                           inferred to be a `FnMut` closure
    |
@@ -19,12 +19,12 @@ LL |         .flat_map(move |()| s.chars().map(move |c| format!("{}{}", c, s)))
    |                                           ++++
 
 error: lifetime may not live long enough
-  --> $DIR/issue-95079-missing-move-in-nested-closure.rs:9:15
+  --> $DIR/issue-95079-missing-move-in-nested-closure.rs:11:15
    |
 LL |     move |()| s.chars().map(|c| format!("{}{}", c, s))
    |     --------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ returning this value requires that `'1` must outlive `'2`
    |     |       |
-   |     |       return type of closure `Map, [closure@$DIR/issue-95079-missing-move-in-nested-closure.rs:9:29: 9:32]>` contains a lifetime `'2`
+   |     |       return type of closure `Map, [closure@$DIR/issue-95079-missing-move-in-nested-closure.rs:11:29: 11:32]>` contains a lifetime `'2`
    |     lifetime `'1` represents this closure's body
    |
    = note: closure implements `Fn`, so references to captured variables can't escape the closure
@@ -33,5 +33,26 @@ help: consider adding 'move' keyword before the nested closure
 LL |     move |()| s.chars().map(move |c| format!("{}{}", c, s))
    |                             ++++
 
-error: aborting due to 2 previous errors
+error: captured variable cannot escape `FnMut` closure body
+  --> $DIR/issue-95079-missing-move-in-nested-closure.rs:21:9
+   |
+LL |     bar: &'a X,
+   |     --- variable defined here
+LL | ) -> impl Iterator + 'a {
+LL |     Some(()).iter().flat_map(move |()| {
+   |                                      - inferred to be a `FnMut` closure
+LL |         Some(()).iter().map(|()| { bar; })
+   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^---^^^^
+   |         |                          |
+   |         |                          variable captured here
+   |         returns a closure that contains a reference to a captured variable, which then escapes the closure body
+   |
+   = note: `FnMut` closures only have access to their captured variables while they are executing...
+   = note: ...therefore, they cannot allow references to captured variables to escape
+help: consider adding 'move' keyword before the nested closure
+   |
+LL |         Some(()).iter().map(move |()| { bar; })
+   |                             ++++
+
+error: aborting due to 3 previous errors
 
diff --git a/tests/ui/coherence/coherence-impl-trait-for-marker-trait-negative.rs b/tests/ui/coherence/coherence-impl-trait-for-marker-trait-negative.rs
index 50d9a480ad1e..98f1558b7ffe 100644
--- a/tests/ui/coherence/coherence-impl-trait-for-marker-trait-negative.rs
+++ b/tests/ui/coherence/coherence-impl-trait-for-marker-trait-negative.rs
@@ -12,19 +12,26 @@ auto trait Marker2 {}
 trait Object: Marker1 {}
 
 // A supertrait marker is illegal...
-impl !Marker1 for dyn Object + Marker2 { }   //~ ERROR E0371
+impl !Marker1 for dyn Object + Marker2 {} //~ ERROR E0371
+                                          //~^ ERROR 0321
 // ...and also a direct component.
-impl !Marker2 for dyn Object + Marker2 { }   //~ ERROR E0371
-
-// But implementing a marker if it is not present is OK.
-impl !Marker2 for dyn Object {} // OK
+impl !Marker2 for dyn Object + Marker2 {} //~ ERROR E0371
+                                          //~^ ERROR 0321
 
 // A non-principal trait-object type is orphan even in its crate.
 impl !Send for dyn Marker2 {} //~ ERROR E0117
 
-// And impl'ing a remote marker for a local trait object is forbidden
-// by one of these special orphan-like rules.
+// Implementing a marker for a local trait object is forbidden by a special
+// orphan-like rule.
+impl !Marker2 for dyn Object {} //~ ERROR E0321
 impl !Send for dyn Object {} //~ ERROR E0321
 impl !Send for dyn Object + Marker2 {} //~ ERROR E0321
 
-fn main() { }
+// Blanket impl that applies to dyn Object is equally problematic.
+auto trait Marker3 {}
+impl !Marker3 for T {} //~ ERROR E0321
+
+auto trait Marker4 {}
+impl !Marker4 for T {} // okay
+
+fn main() {}
diff --git a/tests/ui/coherence/coherence-impl-trait-for-marker-trait-negative.stderr b/tests/ui/coherence/coherence-impl-trait-for-marker-trait-negative.stderr
index c364c707ff9e..ea38afc40ce8 100644
--- a/tests/ui/coherence/coherence-impl-trait-for-marker-trait-negative.stderr
+++ b/tests/ui/coherence/coherence-impl-trait-for-marker-trait-negative.stderr
@@ -1,17 +1,41 @@
 error[E0371]: the object type `(dyn Object + Marker2 + 'static)` automatically implements the trait `Marker1`
   --> $DIR/coherence-impl-trait-for-marker-trait-negative.rs:15:1
    |
-LL | impl !Marker1 for dyn Object + Marker2 { }
+LL | impl !Marker1 for dyn Object + Marker2 {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `(dyn Object + Marker2 + 'static)` automatically implements trait `Marker1`
 
-error[E0371]: the object type `(dyn Object + Marker2 + 'static)` automatically implements the trait `Marker2`
-  --> $DIR/coherence-impl-trait-for-marker-trait-negative.rs:17:1
+error[E0321]: traits with a default impl, like `Marker1`, cannot be implemented for trait object `(dyn Object + Marker2 + 'static)`
+  --> $DIR/coherence-impl-trait-for-marker-trait-negative.rs:15:1
    |
-LL | impl !Marker2 for dyn Object + Marker2 { }
+LL | impl !Marker1 for dyn Object + Marker2 {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: a trait object implements `Marker1` if and only if `Marker1` is one of the trait object's trait bounds
+
+error[E0371]: the object type `(dyn Object + Marker2 + 'static)` automatically implements the trait `Marker2`
+  --> $DIR/coherence-impl-trait-for-marker-trait-negative.rs:18:1
+   |
+LL | impl !Marker2 for dyn Object + Marker2 {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `(dyn Object + Marker2 + 'static)` automatically implements trait `Marker2`
 
+error[E0321]: traits with a default impl, like `Marker2`, cannot be implemented for trait object `(dyn Object + Marker2 + 'static)`
+  --> $DIR/coherence-impl-trait-for-marker-trait-negative.rs:18:1
+   |
+LL | impl !Marker2 for dyn Object + Marker2 {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: a trait object implements `Marker2` if and only if `Marker2` is one of the trait object's trait bounds
+
+error[E0321]: traits with a default impl, like `Marker2`, cannot be implemented for trait object `(dyn Object + 'static)`
+  --> $DIR/coherence-impl-trait-for-marker-trait-negative.rs:26:1
+   |
+LL | impl !Marker2 for dyn Object {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: a trait object implements `Marker2` if and only if `Marker2` is one of the trait object's trait bounds
+
 error[E0117]: only traits defined in the current crate can be implemented for arbitrary types
-  --> $DIR/coherence-impl-trait-for-marker-trait-negative.rs:23:1
+  --> $DIR/coherence-impl-trait-for-marker-trait-negative.rs:22:1
    |
 LL | impl !Send for dyn Marker2 {}
    | ^^^^^^^^^^^^^^^-----------
@@ -33,7 +57,15 @@ error[E0321]: cross-crate traits with a default impl, like `Send`, can only be i
 LL | impl !Send for dyn Object + Marker2 {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't implement cross-crate trait with a default impl for non-struct/enum type
 
-error: aborting due to 5 previous errors
+error[E0321]: traits with a default impl, like `Marker3`, cannot be implemented for generic type `T`
+  --> $DIR/coherence-impl-trait-for-marker-trait-negative.rs:32:1
+   |
+LL | impl !Marker3 for T {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: a trait object implements `Marker3` if and only if `Marker3` is one of the trait object's trait bounds
+
+error: aborting due to 9 previous errors
 
 Some errors have detailed explanations: E0117, E0321, E0371.
 For more information about an error, try `rustc --explain E0117`.
diff --git a/tests/ui/coherence/coherence-impl-trait-for-marker-trait-positive.rs b/tests/ui/coherence/coherence-impl-trait-for-marker-trait-positive.rs
index faac6d983f31..db2e2b4509a2 100644
--- a/tests/ui/coherence/coherence-impl-trait-for-marker-trait-positive.rs
+++ b/tests/ui/coherence/coherence-impl-trait-for-marker-trait-positive.rs
@@ -12,19 +12,26 @@ auto trait Marker2 {}
 trait Object: Marker1 {}
 
 // A supertrait marker is illegal...
-impl Marker1 for dyn Object + Marker2 { }   //~ ERROR E0371
+impl Marker1 for dyn Object + Marker2 {} //~ ERROR E0371
+                                         //~^ ERROR E0321
 // ...and also a direct component.
-impl Marker2 for dyn Object + Marker2 { }   //~ ERROR E0371
-
-// But implementing a marker if it is not present is OK.
-impl Marker2 for dyn Object {} // OK
+impl Marker2 for dyn Object + Marker2 {} //~ ERROR E0371
+                                         //~^ ERROR E0321
 
 // A non-principal trait-object type is orphan even in its crate.
 unsafe impl Send for dyn Marker2 {} //~ ERROR E0117
 
-// And impl'ing a remote marker for a local trait object is forbidden
-// by one of these special orphan-like rules.
+// Implementing a marker for a local trait object is forbidden by a special
+// orphan-like rule.
+impl Marker2 for dyn Object {} //~ ERROR E0321
 unsafe impl Send for dyn Object {} //~ ERROR E0321
 unsafe impl Send for dyn Object + Marker2 {} //~ ERROR E0321
 
-fn main() { }
+// Blanket impl that applies to dyn Object is equally problematic.
+auto trait Marker3 {}
+impl Marker3 for T {} //~ ERROR E0321
+
+auto trait Marker4 {}
+impl Marker4 for T {} // okay
+
+fn main() {}
diff --git a/tests/ui/coherence/coherence-impl-trait-for-marker-trait-positive.stderr b/tests/ui/coherence/coherence-impl-trait-for-marker-trait-positive.stderr
index b80429794f92..2a8713bc3279 100644
--- a/tests/ui/coherence/coherence-impl-trait-for-marker-trait-positive.stderr
+++ b/tests/ui/coherence/coherence-impl-trait-for-marker-trait-positive.stderr
@@ -1,17 +1,41 @@
 error[E0371]: the object type `(dyn Object + Marker2 + 'static)` automatically implements the trait `Marker1`
   --> $DIR/coherence-impl-trait-for-marker-trait-positive.rs:15:1
    |
-LL | impl Marker1 for dyn Object + Marker2 { }
+LL | impl Marker1 for dyn Object + Marker2 {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `(dyn Object + Marker2 + 'static)` automatically implements trait `Marker1`
 
-error[E0371]: the object type `(dyn Object + Marker2 + 'static)` automatically implements the trait `Marker2`
-  --> $DIR/coherence-impl-trait-for-marker-trait-positive.rs:17:1
+error[E0321]: traits with a default impl, like `Marker1`, cannot be implemented for trait object `(dyn Object + Marker2 + 'static)`
+  --> $DIR/coherence-impl-trait-for-marker-trait-positive.rs:15:1
    |
-LL | impl Marker2 for dyn Object + Marker2 { }
+LL | impl Marker1 for dyn Object + Marker2 {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: a trait object implements `Marker1` if and only if `Marker1` is one of the trait object's trait bounds
+
+error[E0371]: the object type `(dyn Object + Marker2 + 'static)` automatically implements the trait `Marker2`
+  --> $DIR/coherence-impl-trait-for-marker-trait-positive.rs:18:1
+   |
+LL | impl Marker2 for dyn Object + Marker2 {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `(dyn Object + Marker2 + 'static)` automatically implements trait `Marker2`
 
+error[E0321]: traits with a default impl, like `Marker2`, cannot be implemented for trait object `(dyn Object + Marker2 + 'static)`
+  --> $DIR/coherence-impl-trait-for-marker-trait-positive.rs:18:1
+   |
+LL | impl Marker2 for dyn Object + Marker2 {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: a trait object implements `Marker2` if and only if `Marker2` is one of the trait object's trait bounds
+
+error[E0321]: traits with a default impl, like `Marker2`, cannot be implemented for trait object `(dyn Object + 'static)`
+  --> $DIR/coherence-impl-trait-for-marker-trait-positive.rs:26:1
+   |
+LL | impl Marker2 for dyn Object {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: a trait object implements `Marker2` if and only if `Marker2` is one of the trait object's trait bounds
+
 error[E0117]: only traits defined in the current crate can be implemented for arbitrary types
-  --> $DIR/coherence-impl-trait-for-marker-trait-positive.rs:23:1
+  --> $DIR/coherence-impl-trait-for-marker-trait-positive.rs:22:1
    |
 LL | unsafe impl Send for dyn Marker2 {}
    | ^^^^^^^^^^^^^^^^^^^^^-----------
@@ -33,7 +57,15 @@ error[E0321]: cross-crate traits with a default impl, like `Send`, can only be i
 LL | unsafe impl Send for dyn Object + Marker2 {}
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ can't implement cross-crate trait with a default impl for non-struct/enum type
 
-error: aborting due to 5 previous errors
+error[E0321]: traits with a default impl, like `Marker3`, cannot be implemented for generic type `T`
+  --> $DIR/coherence-impl-trait-for-marker-trait-positive.rs:32:1
+   |
+LL | impl Marker3 for T {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: a trait object implements `Marker3` if and only if `Marker3` is one of the trait object's trait bounds
+
+error: aborting due to 9 previous errors
 
 Some errors have detailed explanations: E0117, E0321, E0371.
 For more information about an error, try `rustc --explain E0117`.
diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.rs b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.rs
new file mode 100644
index 000000000000..fd52fc355412
--- /dev/null
+++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.rs
@@ -0,0 +1,18 @@
+// checks that when we relate a `Expr::Binop` we also relate the types of the
+// const arguments.
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+struct Bar;
+
+const fn make_generic(_: usize, a: bool) -> bool {
+    a
+}
+
+fn foo() -> Bar<{ make_generic(N, true == false) }> {
+    Bar::<{ make_generic(N, 1_u8 == 0_u8) }>
+    //~^ error: mismatched types
+    //~| error: unconstrained generic constant
+}
+
+fn main() {}
diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.stderr b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.stderr
new file mode 100644
index 000000000000..ba824e84a5ac
--- /dev/null
+++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_binop_arg_tys.stderr
@@ -0,0 +1,20 @@
+error[E0308]: mismatched types
+  --> $DIR/relate_binop_arg_tys.rs:13:5
+   |
+LL |     Bar::<{ make_generic(N, 1_u8 == 0_u8) }>
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `{ make_generic(N, true == false) }`, found `{ make_generic(N, 1_u8 == 0_u8) }`
+   |
+   = note: expected constant `{ make_generic(N, true == false) }`
+              found constant `{ make_generic(N, 1_u8 == 0_u8) }`
+
+error: unconstrained generic constant
+  --> $DIR/relate_binop_arg_tys.rs:13:11
+   |
+LL |     Bar::<{ make_generic(N, 1_u8 == 0_u8) }>
+   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: try adding a `where` bound using this expression: `where [(); { make_generic(N, 1_u8 == 0_u8) }]:`
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.rs b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.rs
new file mode 100644
index 000000000000..bef9d4b9e996
--- /dev/null
+++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.rs
@@ -0,0 +1,12 @@
+// checks that when we relate a `Expr::Cast` we also relate the type of the
+// const argument.
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+fn foo() -> [(); (true as usize) + N] {
+    [(); (1_u8 as usize) + N]
+    //~^ error: mismatched types
+    //~| error: unconstrained generic constant
+}
+
+fn main() {}
diff --git a/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.stderr b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.stderr
new file mode 100644
index 000000000000..d3ba870a2d7c
--- /dev/null
+++ b/tests/ui/const-generics/generic_const_exprs/const_kind_expr/relate_cast_arg_ty.stderr
@@ -0,0 +1,20 @@
+error[E0308]: mismatched types
+  --> $DIR/relate_cast_arg_ty.rs:7:5
+   |
+LL |     [(); (1_u8 as usize) + N]
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ expected `(true as usize) + N`, found `(1_u8 as usize) + N`
+   |
+   = note: expected constant `(true as usize) + N`
+              found constant `(1_u8 as usize) + N`
+
+error: unconstrained generic constant
+  --> $DIR/relate_cast_arg_ty.rs:7:10
+   |
+LL |     [(); (1_u8 as usize) + N]
+   |          ^^^^^^^^^^^^^^^^^^^
+   |
+   = help: try adding a `where` bound using this expression: `where [(); (1_u8 as usize) + N]:`
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/consts/const-err-late.stderr b/tests/ui/consts/const-err-late.stderr
index c5c668189b95..cb0cab2444bf 100644
--- a/tests/ui/consts/const-err-late.stderr
+++ b/tests/ui/consts/const-err-late.stderr
@@ -28,24 +28,12 @@ note: erroneous constant used
 LL |     black_box((S::::FOO, S::::FOO));
    |                               ^^^^^^^^^^^^^
 
-note: erroneous constant used
-  --> $DIR/const-err-late.rs:19:31
-   |
-LL |     black_box((S::::FOO, S::::FOO));
-   |                               ^^^^^^^^^^^^^
-
 note: erroneous constant used
   --> $DIR/const-err-late.rs:19:16
    |
 LL |     black_box((S::::FOO, S::::FOO));
    |                ^^^^^^^^^^^^^
 
-note: erroneous constant used
-  --> $DIR/const-err-late.rs:19:31
-   |
-LL |     black_box((S::::FOO, S::::FOO));
-   |                               ^^^^^^^^^^^^^
-
 error: aborting due to 2 previous errors
 
 For more information about this error, try `rustc --explain E0080`.
diff --git a/tests/ui/derives/deriving-copyclone.stderr b/tests/ui/derives/deriving-copyclone.stderr
index 9c4ca01ff377..c0c2215c04ad 100644
--- a/tests/ui/derives/deriving-copyclone.stderr
+++ b/tests/ui/derives/deriving-copyclone.stderr
@@ -1,8 +1,8 @@
 error[E0277]: the trait bound `B: Copy` is not satisfied
-  --> $DIR/deriving-copyclone.rs:31:13
+  --> $DIR/deriving-copyclone.rs:31:26
    |
 LL |     is_copy(B { a: 1, b: C });
-   |     ------- ^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `B`
+   |     -------              ^ the trait `Copy` is not implemented for `B`
    |     |
    |     required by a bound introduced by this call
    |
@@ -19,14 +19,14 @@ LL | fn is_copy(_: T) {}
    = note: this error originates in the derive macro `Copy` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider borrowing here
    |
-LL |     is_copy(&B { a: 1, b: C });
-   |             +
+LL |     is_copy(B { a: 1, b: &C });
+   |                          +
 
 error[E0277]: the trait bound `B: Clone` is not satisfied
-  --> $DIR/deriving-copyclone.rs:32:14
+  --> $DIR/deriving-copyclone.rs:32:27
    |
 LL |     is_clone(B { a: 1, b: C });
-   |     -------- ^^^^^^^^^^^^^^^^ the trait `Clone` is not implemented for `B`
+   |     --------              ^ the trait `Clone` is not implemented for `B`
    |     |
    |     required by a bound introduced by this call
    |
@@ -43,14 +43,14 @@ LL | fn is_clone(_: T) {}
    = note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider borrowing here
    |
-LL |     is_clone(&B { a: 1, b: C });
-   |              +
+LL |     is_clone(B { a: 1, b: &C });
+   |                           +
 
 error[E0277]: the trait bound `B: Copy` is not satisfied
-  --> $DIR/deriving-copyclone.rs:35:13
+  --> $DIR/deriving-copyclone.rs:35:26
    |
 LL |     is_copy(B { a: 1, b: D });
-   |     ------- ^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `B`
+   |     -------              ^ the trait `Copy` is not implemented for `B`
    |     |
    |     required by a bound introduced by this call
    |
@@ -67,8 +67,8 @@ LL | fn is_copy(_: T) {}
    = note: this error originates in the derive macro `Copy` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: consider borrowing here
    |
-LL |     is_copy(&B { a: 1, b: D });
-   |             +
+LL |     is_copy(B { a: 1, b: &D });
+   |                          +
 
 error: aborting due to 3 previous errors
 
diff --git a/tests/ui/deriving/deriving-all-codegen.stdout b/tests/ui/deriving/deriving-all-codegen.stdout
index 8e238a509d2f..5bca83e87f87 100644
--- a/tests/ui/deriving/deriving-all-codegen.stdout
+++ b/tests/ui/deriving/deriving-all-codegen.stdout
@@ -98,7 +98,7 @@ impl ::core::marker::Copy for Point { }
 impl ::core::fmt::Debug for Point {
     fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
         ::core::fmt::Formatter::debug_struct_field2_finish(f, "Point", "x",
-            &&self.x, "y", &&self.y)
+            &self.x, "y", &&self.y)
     }
 }
 #[automatically_derived]
@@ -183,7 +183,7 @@ impl ::core::marker::Copy for PackedPoint { }
 impl ::core::fmt::Debug for PackedPoint {
     fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
         ::core::fmt::Formatter::debug_struct_field2_finish(f, "PackedPoint",
-            "x", &&{ self.x }, "y", &&{ self.y })
+            "x", &{ self.x }, "y", &&{ self.y })
     }
 }
 #[automatically_derived]
@@ -277,8 +277,8 @@ impl ::core::fmt::Debug for Big {
         let names: &'static _ =
             &["b1", "b2", "b3", "b4", "b5", "b6", "b7", "b8"];
         let values: &[&dyn ::core::fmt::Debug] =
-            &[&&self.b1, &&self.b2, &&self.b3, &&self.b4, &&self.b5,
-                        &&self.b6, &&self.b7, &&self.b8];
+            &[&self.b1, &self.b2, &self.b3, &self.b4, &self.b5, &self.b6,
+                        &self.b7, &&self.b8];
         ::core::fmt::Formatter::debug_struct_fields_finish(f, "Big", names,
             values)
     }
@@ -565,7 +565,7 @@ impl ::core::fmt::Debug
     for Generic where T::A: ::core::fmt::Debug {
     fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
         ::core::fmt::Formatter::debug_struct_field3_finish(f, "Generic", "t",
-            &&self.t, "ta", &&self.ta, "u", &&self.u)
+            &self.t, "ta", &self.ta, "u", &&self.u)
     }
 }
 #[automatically_derived]
@@ -682,7 +682,7 @@ impl ::core::fmt::Result {
         ::core::fmt::Formatter::debug_tuple_field3_finish(f, "PackedGeneric",
-            &&{ self.0 }, &&{ self.1 }, &&{ self.2 })
+            &{ self.0 }, &{ self.1 }, &&{ self.2 })
     }
 }
 #[automatically_derived]
@@ -1084,7 +1084,7 @@ impl ::core::fmt::Debug for Mixed {
                     &__self_0),
             Mixed::S { d1: __self_0, d2: __self_1 } =>
                 ::core::fmt::Formatter::debug_struct_field2_finish(f, "S",
-                    "d1", &__self_0, "d2", &__self_1),
+                    "d1", __self_0, "d2", &__self_1),
         }
     }
 }
diff --git a/tests/ui/did_you_mean/issue-46718-struct-pattern-dotdotdot.stderr b/tests/ui/did_you_mean/issue-46718-struct-pattern-dotdotdot.stderr
index bfe1ed32859b..589b2c378492 100644
--- a/tests/ui/did_you_mean/issue-46718-struct-pattern-dotdotdot.stderr
+++ b/tests/ui/did_you_mean/issue-46718-struct-pattern-dotdotdot.stderr
@@ -2,7 +2,12 @@ error: expected field pattern, found `...`
   --> $DIR/issue-46718-struct-pattern-dotdotdot.rs:11:55
    |
 LL |             PersonalityInventory { expressivity: exp, ... } => exp
-   |                                                       ^^^ help: to omit remaining fields, use one fewer `.`: `..`
+   |                                                       ^^^
+   |
+help: to omit remaining fields, use `..`
+   |
+LL |             PersonalityInventory { expressivity: exp, .. } => exp
+   |                                                       ~~
 
 error: aborting due to previous error
 
diff --git a/tests/ui/errors/trait-bound-error-spans/blame-trait-error.rs b/tests/ui/errors/trait-bound-error-spans/blame-trait-error.rs
new file mode 100644
index 000000000000..5134c672f5f4
--- /dev/null
+++ b/tests/ui/errors/trait-bound-error-spans/blame-trait-error.rs
@@ -0,0 +1,28 @@
+trait T1 {}
+trait T2 {}
+trait T3 {}
+trait T4 {}
+
+impl T1 for Wrapper {}
+
+impl T2 for i32 {}
+impl T3 for i32 {}
+
+impl T2 for Burrito {}
+
+struct Wrapper {
+    value: W,
+}
+
+struct Burrito {
+    filling: F,
+}
+
+fn want(_x: V) {}
+
+fn example(q: Q) {
+    want(Wrapper { value: Burrito { filling: q } });
+    //~^ ERROR the trait bound `Q: T3` is not satisfied [E0277]
+}
+
+fn main() {}
diff --git a/tests/ui/errors/trait-bound-error-spans/blame-trait-error.stderr b/tests/ui/errors/trait-bound-error-spans/blame-trait-error.stderr
new file mode 100644
index 000000000000..27b002db1306
--- /dev/null
+++ b/tests/ui/errors/trait-bound-error-spans/blame-trait-error.stderr
@@ -0,0 +1,35 @@
+error[E0277]: the trait bound `Q: T3` is not satisfied
+  --> $DIR/blame-trait-error.rs:24:46
+   |
+LL |     want(Wrapper { value: Burrito { filling: q } });
+   |     ----                                     ^ the trait `T3` is not implemented for `Q`
+   |     |
+   |     required by a bound introduced by this call
+   |
+note: required for `Burrito` to implement `T2`
+  --> $DIR/blame-trait-error.rs:11:13
+   |
+LL | impl T2 for Burrito {}
+   |         --  ^^     ^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required for `Wrapper>` to implement `T1`
+  --> $DIR/blame-trait-error.rs:6:13
+   |
+LL | impl T1 for Wrapper {}
+   |         --  ^^     ^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error.rs:21:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/errors/traits/blame-trait-error-spans-on-exprs.rs b/tests/ui/errors/traits/blame-trait-error-spans-on-exprs.rs
new file mode 100644
index 000000000000..2b75f4324128
--- /dev/null
+++ b/tests/ui/errors/traits/blame-trait-error-spans-on-exprs.rs
@@ -0,0 +1,131 @@
+// This test examines the error spans reported when a generic `impl` fails.
+// For example, if a function wants an `Option` where `T: Copy` but you pass `Some(vec![1, 2])`,
+// then we want to point at the `vec![1, 2]` and not the `Some( ... )` expression.
+
+trait T1 {}
+trait T2 {}
+trait T3 {}
+trait T4 {}
+
+impl T2 for i32 {}
+impl T3 for i32 {}
+
+struct Wrapper {
+    value: W,
+}
+impl T1 for Wrapper {}
+
+struct Burrito {
+    spicy: bool,
+    filling: F,
+}
+impl T2 for Burrito {}
+
+struct BurritoTuple(F);
+impl T2 for BurritoTuple {}
+
+enum BurritoKinds {
+    SmallBurrito { spicy: bool, small_filling: G },
+    LargeBurrito { spicy: bool, large_filling: G },
+    MultiBurrito { first_filling: G, second_filling: G },
+}
+impl T2 for BurritoKinds {}
+
+struct Taco(bool, H);
+impl T2 for Taco {}
+
+enum TacoKinds {
+    OneTaco(bool, H),
+    TwoTacos(bool, H, H),
+}
+impl T2 for TacoKinds {}
+
+struct GenericBurrito {
+    spiciness: Spiciness,
+    filling: Filling,
+}
+impl T2 for GenericBurrito {}
+struct NotSpicy;
+
+impl T2 for (A, B) {}
+impl T1 for (A, B) {}
+
+fn want(_x: V) {}
+
+// Some more-complex examples:
+type AliasBurrito = GenericBurrito;
+
+// The following example is fairly confusing. The idea is that we want to "misdirect" the location
+// of the error.
+
+struct Two {
+    a: A,
+    b: B,
+}
+
+impl T1 for Two, Z> {}
+
+struct DoubleWrapper {
+    item: Wrapper,
+}
+
+impl T1 for DoubleWrapper {}
+
+fn example(q: Q) {
+    // In each of the following examples, we expect the error span to point at the 'q' variable,
+    // since the missing constraint is `Q: T3`.
+
+    // Verifies for struct:
+    want(Wrapper { value: Burrito { spicy: false, filling: q } });
+    //~^ ERROR the trait bound `Q: T3` is not satisfied [E0277]
+
+    // Verifies for enum with named fields in variant:
+    want(Wrapper { value: BurritoKinds::SmallBurrito { spicy: true, small_filling: q } });
+    //~^ ERROR the trait bound `Q: T3` is not satisfied [E0277]
+
+    // Verifies for tuple struct:
+    want(Wrapper { value: Taco(false, q) });
+    //~^ ERROR the trait bound `Q: T3` is not satisfied [E0277]
+
+    // Verifies for tuple enum variant:
+    want(Wrapper { value: TacoKinds::OneTaco(false, q) });
+    //~^ ERROR the trait bound `Q: T3` is not satisfied [E0277]
+
+    // Verifies for generic type with multiple parameters:
+    want(Wrapper { value: GenericBurrito { spiciness: NotSpicy, filling: q } });
+    //~^ ERROR the trait bound `Q: T3` is not satisfied [E0277]
+
+    // Verifies for tuple:
+    want((3, q));
+    //~^ ERROR the trait bound `Q: T2` is not satisfied [E0277]
+
+    // Verifies for nested tuple:
+    want(Wrapper { value: (3, q) });
+    //~^ ERROR the trait bound `Q: T3` is not satisfied [E0277]
+
+    // Verifies for nested tuple:
+    want(((3, q), 5));
+    //~^ ERROR the trait bound `Q: T3` is not satisfied [E0277]
+
+    want(DoubleWrapper { item: Wrapper { value: q } });
+    //~^ ERROR the trait bound `Q: T1` is not satisfied [E0277]
+
+    want(DoubleWrapper { item: Wrapper { value: DoubleWrapper { item: Wrapper { value: q } } } });
+    //~^ ERROR the trait bound `Q: T1` is not satisfied [E0277]
+
+    // Verifies for type alias to struct:
+    want(Wrapper { value: AliasBurrito { spiciness: q, filling: q } });
+    //~^ ERROR the trait bound `Q: T3` is not satisfied [E0277]
+
+    want(Two { a: Two { a: (), b: q }, b: () });
+    //~^ ERROR the trait bound `Q: T1` is not satisfied [E0277]
+
+    // We *should* blame the 'q'.
+    // FIXME: Right now, the wrong field is blamed.
+    want(
+        Two { a: Two { a: (), b: Two { a: Two { a: (), b: q }, b: () } }, b: () },
+        //~^ ERROR the trait bound `Q: T1` is not satisfied [E0277]
+    );
+}
+
+fn main() {}
diff --git a/tests/ui/errors/traits/blame-trait-error-spans-on-exprs.stderr b/tests/ui/errors/traits/blame-trait-error-spans-on-exprs.stderr
new file mode 100644
index 000000000000..5f87c670d8ac
--- /dev/null
+++ b/tests/ui/errors/traits/blame-trait-error-spans-on-exprs.stderr
@@ -0,0 +1,380 @@
+error[E0277]: the trait bound `Q: T3` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:79:60
+   |
+LL |     want(Wrapper { value: Burrito { spicy: false, filling: q } });
+   |     ---- required by a bound introduced by this call       ^ the trait `T3` is not implemented for `Q`
+   |
+note: required for `Burrito` to implement `T2`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:22:13
+   |
+LL | impl T2 for Burrito {}
+   |         --  ^^     ^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required for `Wrapper>` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:16:13
+   |
+LL | impl T1 for Wrapper {}
+   |         --  ^^     ^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T3` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:83:84
+   |
+LL |     want(Wrapper { value: BurritoKinds::SmallBurrito { spicy: true, small_filling: q } });
+   |     ---- required by a bound introduced by this call                               ^ the trait `T3` is not implemented for `Q`
+   |
+note: required for `BurritoKinds` to implement `T2`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:32:13
+   |
+LL | impl T2 for BurritoKinds {}
+   |         --  ^^     ^^^^^^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required for `Wrapper>` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:16:13
+   |
+LL | impl T1 for Wrapper {}
+   |         --  ^^     ^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T3` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:87:39
+   |
+LL |     want(Wrapper { value: Taco(false, q) });
+   |     ----                              ^ the trait `T3` is not implemented for `Q`
+   |     |
+   |     required by a bound introduced by this call
+   |
+note: required for `Taco` to implement `T2`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:35:13
+   |
+LL | impl T2 for Taco {}
+   |         --  ^^     ^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required for `Wrapper>` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:16:13
+   |
+LL | impl T1 for Wrapper {}
+   |         --  ^^     ^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T3` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:91:27
+   |
+LL |     want(Wrapper { value: TacoKinds::OneTaco(false, q) });
+   |     ----                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `T3` is not implemented for `Q`
+   |     |
+   |     required by a bound introduced by this call
+   |
+note: required for `TacoKinds` to implement `T2`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:41:13
+   |
+LL | impl T2 for TacoKinds {}
+   |         --  ^^     ^^^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required for `Wrapper>` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:16:13
+   |
+LL | impl T1 for Wrapper {}
+   |         --  ^^     ^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T3` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:95:74
+   |
+LL |     want(Wrapper { value: GenericBurrito { spiciness: NotSpicy, filling: q } });
+   |     ---- required by a bound introduced by this call                     ^ the trait `T3` is not implemented for `Q`
+   |
+note: required for `GenericBurrito` to implement `T2`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:47:16
+   |
+LL | impl T2 for GenericBurrito {}
+   |            --  ^^     ^^^^^^^^^^^^^^^^^^^^
+   |            |
+   |            unsatisfied trait bound introduced here
+note: required for `Wrapper>` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:16:13
+   |
+LL | impl T1 for Wrapper {}
+   |         --  ^^     ^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T2` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:99:14
+   |
+LL |     want((3, q));
+   |     ----     ^ the trait `T2` is not implemented for `Q`
+   |     |
+   |     required by a bound introduced by this call
+   |
+note: required for `(i32, Q)` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:51:20
+   |
+LL | impl T1 for (A, B) {}
+   |                --  ^^     ^^^^^^
+   |                |
+   |                unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T3` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:103:31
+   |
+LL |     want(Wrapper { value: (3, q) });
+   |     ----                      ^ the trait `T3` is not implemented for `Q`
+   |     |
+   |     required by a bound introduced by this call
+   |
+note: required for `(i32, Q)` to implement `T2`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:50:20
+   |
+LL | impl T2 for (A, B) {}
+   |                --  ^^     ^^^^^^
+   |                |
+   |                unsatisfied trait bound introduced here
+note: required for `Wrapper<(i32, Q)>` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:16:13
+   |
+LL | impl T1 for Wrapper {}
+   |         --  ^^     ^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T3` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:107:15
+   |
+LL |     want(((3, q), 5));
+   |     ----      ^ the trait `T3` is not implemented for `Q`
+   |     |
+   |     required by a bound introduced by this call
+   |
+note: required for `(i32, Q)` to implement `T2`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:50:20
+   |
+LL | impl T2 for (A, B) {}
+   |                --  ^^     ^^^^^^
+   |                |
+   |                unsatisfied trait bound introduced here
+note: required for `((i32, Q), i32)` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:51:20
+   |
+LL | impl T1 for (A, B) {}
+   |         --         ^^     ^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T1` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:110:49
+   |
+LL |     want(DoubleWrapper { item: Wrapper { value: q } });
+   |     ----                                        ^ the trait `T1` is not implemented for `Q`
+   |     |
+   |     required by a bound introduced by this call
+   |
+note: required for `DoubleWrapper` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:72:13
+   |
+LL | impl T1 for DoubleWrapper {}
+   |         --  ^^     ^^^^^^^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T1` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:113:88
+   |
+LL |     want(DoubleWrapper { item: Wrapper { value: DoubleWrapper { item: Wrapper { value: q } } } });
+   |     ---- required by a bound introduced by this call                                   ^ the trait `T1` is not implemented for `Q`
+   |
+note: required for `DoubleWrapper` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:72:13
+   |
+LL | impl T1 for DoubleWrapper {}
+   |         --  ^^     ^^^^^^^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+   = note: 1 redundant requirement hidden
+   = note: required for `DoubleWrapper>` to implement `T1`
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T3` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:117:27
+   |
+LL |     want(Wrapper { value: AliasBurrito { spiciness: q, filling: q } });
+   |     ----                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `T3` is not implemented for `Q`
+   |     |
+   |     required by a bound introduced by this call
+   |
+note: required for `GenericBurrito` to implement `T2`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:47:16
+   |
+LL | impl T2 for GenericBurrito {}
+   |            --  ^^     ^^^^^^^^^^^^^^^^^^^^
+   |            |
+   |            unsatisfied trait bound introduced here
+note: required for `Wrapper>` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:16:13
+   |
+LL | impl T1 for Wrapper {}
+   |         --  ^^     ^^^^^^^^^^
+   |         |
+   |         unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T1` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:120:35
+   |
+LL |     want(Two { a: Two { a: (), b: q }, b: () });
+   |     ----                          ^ the trait `T1` is not implemented for `Q`
+   |     |
+   |     required by a bound introduced by this call
+   |
+note: required for `Two, ()>` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:66:19
+   |
+LL | impl T1 for Two, Z> {}
+   |            --     ^^     ^^^^^^^^^^^^^^^^^
+   |            |
+   |            unsatisfied trait bound introduced here
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error[E0277]: the trait bound `Q: T1` is not satisfied
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:126:59
+   |
+LL |     want(
+   |     ---- required by a bound introduced by this call
+LL |         Two { a: Two { a: (), b: Two { a: Two { a: (), b: q }, b: () } }, b: () },
+   |                                                           ^ the trait `T1` is not implemented for `Q`
+   |
+note: required for `Two, ()>` to implement `T1`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:66:19
+   |
+LL | impl T1 for Two, Z> {}
+   |            --     ^^     ^^^^^^^^^^^^^^^^^
+   |            |
+   |            unsatisfied trait bound introduced here
+   = note: 1 redundant requirement hidden
+   = note: required for `Two, ()>>, ()>` to implement `T1`
+note: required by a bound in `want`
+  --> $DIR/blame-trait-error-spans-on-exprs.rs:53:12
+   |
+LL | fn want(_x: V) {}
+   |            ^^ required by this bound in `want`
+help: consider restricting type parameter `Q`
+   |
+LL | fn example(q: Q) {
+   |             ++++
+
+error: aborting due to 13 previous errors
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/tests/ui/fmt/format-string-wrong-order.rs b/tests/ui/fmt/format-string-wrong-order.rs
new file mode 100644
index 000000000000..0bad54023965
--- /dev/null
+++ b/tests/ui/fmt/format-string-wrong-order.rs
@@ -0,0 +1,15 @@
+fn main() {
+    let bar = 3;
+    format!("{?:}", bar);
+    //~^ ERROR invalid format string: expected format parameter to occur after `:`
+    format!("{?:bar}");
+    //~^ ERROR invalid format string: expected format parameter to occur after `:`
+    format!("{?:?}", bar);
+    //~^ ERROR invalid format string: expected format parameter to occur after `:`
+    format!("{??}", bar);
+    //~^ ERROR invalid format string: expected `'}'`, found `'?'`
+    format!("{?;bar}");
+    //~^ ERROR invalid format string: expected `'}'`, found `'?'`
+    format!("{?:#?}", bar);
+    //~^ ERROR invalid format string: expected format parameter to occur after `:`
+}
diff --git a/tests/ui/fmt/format-string-wrong-order.stderr b/tests/ui/fmt/format-string-wrong-order.stderr
new file mode 100644
index 000000000000..461af354a4e1
--- /dev/null
+++ b/tests/ui/fmt/format-string-wrong-order.stderr
@@ -0,0 +1,54 @@
+error: invalid format string: expected format parameter to occur after `:`
+  --> $DIR/format-string-wrong-order.rs:3:15
+   |
+LL |     format!("{?:}", bar);
+   |               ^ expected `?` to occur after `:` in format string
+   |
+   = note: `?` comes after `:`, try `:?` instead
+
+error: invalid format string: expected format parameter to occur after `:`
+  --> $DIR/format-string-wrong-order.rs:5:15
+   |
+LL |     format!("{?:bar}");
+   |               ^ expected `?` to occur after `:` in format string
+   |
+   = note: `?` comes after `:`, try `bar:?` instead
+
+error: invalid format string: expected format parameter to occur after `:`
+  --> $DIR/format-string-wrong-order.rs:7:15
+   |
+LL |     format!("{?:?}", bar);
+   |               ^ expected `?` to occur after `:` in format string
+   |
+   = note: `?` comes after `:`, try `:?` instead
+
+error: invalid format string: expected `'}'`, found `'?'`
+  --> $DIR/format-string-wrong-order.rs:9:15
+   |
+LL |     format!("{??}", bar);
+   |              -^ expected `}` in format string
+   |              |
+   |              because of this opening brace
+   |
+   = note: if you intended to print `{`, you can escape it using `{{`
+
+error: invalid format string: expected `'}'`, found `'?'`
+  --> $DIR/format-string-wrong-order.rs:11:15
+   |
+LL |     format!("{?;bar}");
+   |              -^ expected `}` in format string
+   |              |
+   |              because of this opening brace
+   |
+   = note: if you intended to print `{`, you can escape it using `{{`
+
+error: invalid format string: expected format parameter to occur after `:`
+  --> $DIR/format-string-wrong-order.rs:13:15
+   |
+LL |     format!("{?:#?}", bar);
+   |               ^ expected `?` to occur after `:` in format string
+   |
+   = note: `?` comes after `:`, try `:?` instead
+
+error: aborting due to 6 previous errors
+
diff --git a/tests/ui/half-open-range-patterns/half-open-range-pats-inclusive-match-arrow.rs b/tests/ui/half-open-range-patterns/half-open-range-pats-inclusive-match-arrow.rs
index 7ba2b6d857cd..30173b1b4be0 100644
--- a/tests/ui/half-open-range-patterns/half-open-range-pats-inclusive-match-arrow.rs
+++ b/tests/ui/half-open-range-patterns/half-open-range-pats-inclusive-match-arrow.rs
@@ -2,7 +2,8 @@ fn main() {
     let x = 42;
     match x {
         0..=73 => {},
-        74..=> {},   //~ ERROR unexpected `=>` after open range
-                     //~^ ERROR expected one of `=>`, `if`, or `|`, found `>`
+        74..=> {},
+        //~^ ERROR unexpected `>` after inclusive range
+        //~| NOTE this is parsed as an inclusive range `..=`
     }
 }
diff --git a/tests/ui/half-open-range-patterns/half-open-range-pats-inclusive-match-arrow.stderr b/tests/ui/half-open-range-patterns/half-open-range-pats-inclusive-match-arrow.stderr
index 9ba6d15113cd..cb7f998df7a5 100644
--- a/tests/ui/half-open-range-patterns/half-open-range-pats-inclusive-match-arrow.stderr
+++ b/tests/ui/half-open-range-patterns/half-open-range-pats-inclusive-match-arrow.stderr
@@ -1,19 +1,15 @@
-error: unexpected `=>` after open range
-  --> $DIR/half-open-range-pats-inclusive-match-arrow.rs:5:11
+error: unexpected `>` after inclusive range
+  --> $DIR/half-open-range-pats-inclusive-match-arrow.rs:5:14
    |
 LL |         74..=> {},
-   |           ^^^
+   |           ---^
+   |           |
+   |           this is parsed as an inclusive range `..=`
    |
 help: add a space between the pattern and `=>`
    |
 LL |         74.. => {},
    |             +
 
-error: expected one of `=>`, `if`, or `|`, found `>`
-  --> $DIR/half-open-range-pats-inclusive-match-arrow.rs:5:14
-   |
-LL |         74..=> {},
-   |              ^ expected one of `=>`, `if`, or `|`
-
-error: aborting due to 2 previous errors
+error: aborting due to previous error
 
diff --git a/tests/ui/impl-trait/auto-trait-leak.stderr b/tests/ui/impl-trait/auto-trait-leak.stderr
index feedfc40aaf4..fd0358421ebf 100644
--- a/tests/ui/impl-trait/auto-trait-leak.stderr
+++ b/tests/ui/impl-trait/auto-trait-leak.stderr
@@ -39,7 +39,7 @@ note: ...which requires type-checking `cycle1`...
    |
 LL |     send(cycle2().clone());
    |     ^^^^
-   = note: ...which requires evaluating trait selection obligation `impl core::clone::Clone: core::marker::Send`...
+   = note: ...which requires evaluating trait selection obligation `cycle2::{opaque#0}: core::marker::Send`...
 note: ...which requires computing type of `cycle2::{opaque#0}`...
   --> $DIR/auto-trait-leak.rs:19:16
    |
@@ -80,7 +80,7 @@ note: ...which requires type-checking `cycle2`...
    |
 LL |     send(cycle1().clone());
    |     ^^^^
-   = note: ...which requires evaluating trait selection obligation `impl core::clone::Clone: core::marker::Send`...
+   = note: ...which requires evaluating trait selection obligation `cycle1::{opaque#0}: core::marker::Send`...
    = note: ...which again requires computing type of `cycle1::{opaque#0}`, completing the cycle
 note: cycle used when checking item types in top-level module
   --> $DIR/auto-trait-leak.rs:1:1
diff --git a/tests/ui/issues/issue-51515.rs b/tests/ui/issues/issue-51515.rs
index 797c1085d517..84e09afac0a2 100644
--- a/tests/ui/issues/issue-51515.rs
+++ b/tests/ui/issues/issue-51515.rs
@@ -5,6 +5,7 @@ fn main() {
     *foo = 32;
     //~^ ERROR cannot assign to `*foo`, which is behind a `&` reference
     let bar = foo;
+    //~^ HELP consider specifying this binding's type
     *bar = 64;
     //~^ ERROR cannot assign to `*bar`, which is behind a `&` reference
 }
diff --git a/tests/ui/issues/issue-51515.stderr b/tests/ui/issues/issue-51515.stderr
index c4e61e719539..94e5c9f1b832 100644
--- a/tests/ui/issues/issue-51515.stderr
+++ b/tests/ui/issues/issue-51515.stderr
@@ -10,12 +10,15 @@ LL |     let foo = &mut 16;
    |               ~~~~~~~
 
 error[E0594]: cannot assign to `*bar`, which is behind a `&` reference
-  --> $DIR/issue-51515.rs:8:5
+  --> $DIR/issue-51515.rs:9:5
    |
-LL |     let bar = foo;
-   |         --- consider changing this binding's type to be: `&mut i32`
 LL |     *bar = 64;
    |     ^^^^^^^^^ `bar` is a `&` reference, so the data it refers to cannot be written
+   |
+help: consider specifying this binding's type
+   |
+LL |     let bar: &mut i32 = foo;
+   |            ++++++++++
 
 error: aborting due to 2 previous errors
 
diff --git a/tests/ui/lifetimes/issue-107492-default-value-for-lifetime.rs b/tests/ui/lifetimes/issue-107492-default-value-for-lifetime.rs
new file mode 100644
index 000000000000..f129035d040f
--- /dev/null
+++ b/tests/ui/lifetimes/issue-107492-default-value-for-lifetime.rs
@@ -0,0 +1,6 @@
+pub struct DefaultLifetime<'a, 'b = 'static> {
+                                   //~^ ERROR unexpected default lifetime parameter
+    _marker: std::marker::PhantomData<&'a &'b ()>,
+}
+
+fn main(){}
diff --git a/tests/ui/lifetimes/issue-107492-default-value-for-lifetime.stderr b/tests/ui/lifetimes/issue-107492-default-value-for-lifetime.stderr
new file mode 100644
index 000000000000..c235c31809fb
--- /dev/null
+++ b/tests/ui/lifetimes/issue-107492-default-value-for-lifetime.stderr
@@ -0,0 +1,8 @@
+error: unexpected default lifetime parameter
+  --> $DIR/issue-107492-default-value-for-lifetime.rs:1:35
+   |
+LL | pub struct DefaultLifetime<'a, 'b = 'static> {
+   |                                   ^^^^^^^^^ lifetime parameters cannot have default values
+
+error: aborting due to previous error
+
diff --git a/tests/ui/lint/unused/issue-103320-must-use-ops.rs b/tests/ui/lint/unused/issue-103320-must-use-ops.rs
new file mode 100644
index 000000000000..597d312fa5ec
--- /dev/null
+++ b/tests/ui/lint/unused/issue-103320-must-use-ops.rs
@@ -0,0 +1,27 @@
+// check-pass
+
+#![warn(unused_must_use)]
+#![feature(never_type)]
+
+use std::ops::Add;
+use std::ops::Sub;
+use std::ops::Mul;
+use std::ops::Div;
+use std::ops::Rem;
+
+fn main() {
+    let x = 2_u32;
+    (x.add(4), x.sub(4), x.mul(4), x.div(4), x.rem(4));
+
+    x.add(4); //~ WARN unused return value of `add` that must be used
+
+    x.sub(4); //~ WARN unused return value of `sub` that must be used
+
+    x.mul(4); //~ WARN unused return value of `mul` that must be used
+
+    x.div(4); //~ WARN unused return value of `div` that must be used
+
+    x.rem(4); //~ WARN unused return value of `rem` that must be used
+
+    println!("{}", x);
+}
diff --git a/tests/ui/lint/unused/issue-103320-must-use-ops.stderr b/tests/ui/lint/unused/issue-103320-must-use-ops.stderr
new file mode 100644
index 000000000000..57439ec6a8fd
--- /dev/null
+++ b/tests/ui/lint/unused/issue-103320-must-use-ops.stderr
@@ -0,0 +1,67 @@
+warning: unused return value of `add` that must be used
+  --> $DIR/issue-103320-must-use-ops.rs:16:5
+   |
+LL |     x.add(4);
+   |     ^^^^^^^^
+   |
+   = note: this returns the result of the operation, without modifying the original
+note: the lint level is defined here
+  --> $DIR/issue-103320-must-use-ops.rs:3:9
+   |
+LL | #![warn(unused_must_use)]
+   |         ^^^^^^^^^^^^^^^
+help: use `let _ = ...` to ignore the resulting value
+   |
+LL |     let _ = x.add(4);
+   |     +++++++
+
+warning: unused return value of `sub` that must be used
+  --> $DIR/issue-103320-must-use-ops.rs:18:5
+   |
+LL |     x.sub(4);
+   |     ^^^^^^^^
+   |
+   = note: this returns the result of the operation, without modifying the original
+help: use `let _ = ...` to ignore the resulting value
+   |
+LL |     let _ = x.sub(4);
+   |     +++++++
+
+warning: unused return value of `mul` that must be used
+  --> $DIR/issue-103320-must-use-ops.rs:20:5
+   |
+LL |     x.mul(4);
+   |     ^^^^^^^^
+   |
+   = note: this returns the result of the operation, without modifying the original
+help: use `let _ = ...` to ignore the resulting value
+   |
+LL |     let _ = x.mul(4);
+   |     +++++++
+
+warning: unused return value of `div` that must be used
+  --> $DIR/issue-103320-must-use-ops.rs:22:5
+   |
+LL |     x.div(4);
+   |     ^^^^^^^^
+   |
+   = note: this returns the result of the operation, without modifying the original
+help: use `let _ = ...` to ignore the resulting value
+   |
+LL |     let _ = x.div(4);
+   |     +++++++
+
+warning: unused return value of `rem` that must be used
+  --> $DIR/issue-103320-must-use-ops.rs:24:5
+   |
+LL |     x.rem(4);
+   |     ^^^^^^^^
+   |
+   = note: this returns the result of the operation, without modifying the original
+help: use `let _ = ...` to ignore the resulting value
+   |
+LL |     let _ = x.rem(4);
+   |     +++++++
+
+warning: 5 warnings emitted
+
diff --git a/tests/ui/lint/unused/issue-96606.rs b/tests/ui/lint/unused/issue-96606.rs
new file mode 100644
index 000000000000..4e7c290fa2a0
--- /dev/null
+++ b/tests/ui/lint/unused/issue-96606.rs
@@ -0,0 +1,8 @@
+#[deny(unused)]
+fn main() {
+    let arr = [0; 10];
+    let _ = arr[(0)]; //~ ERROR unnecessary parentheses around index expression
+    let _ = arr[{0}]; //~ ERROR unnecessary braces around index expression
+    let _ = arr[1 + (0)];
+    let _ = arr[{ let x = 0; x }];
+}
diff --git a/tests/ui/lint/unused/issue-96606.stderr b/tests/ui/lint/unused/issue-96606.stderr
new file mode 100644
index 000000000000..e3627718116b
--- /dev/null
+++ b/tests/ui/lint/unused/issue-96606.stderr
@@ -0,0 +1,33 @@
+error: unnecessary parentheses around index expression
+  --> $DIR/issue-96606.rs:4:17
+   |
+LL |     let _ = arr[(0)];
+   |                 ^ ^
+   |
+note: the lint level is defined here
+  --> $DIR/issue-96606.rs:1:8
+   |
+LL | #[deny(unused)]
+   |        ^^^^^^
+   = note: `#[deny(unused_parens)]` implied by `#[deny(unused)]`
+help: remove these parentheses
+   |
+LL -     let _ = arr[(0)];
+LL +     let _ = arr[0];
+   |
+
+error: unnecessary braces around index expression
+  --> $DIR/issue-96606.rs:5:17
+   |
+LL |     let _ = arr[{0}];
+   |                 ^ ^
+   |
+   = note: `#[deny(unused_braces)]` implied by `#[deny(unused)]`
+help: remove these braces
+   |
+LL -     let _ = arr[{0}];
+LL +     let _ = arr[0];
+   |
+
+error: aborting due to 2 previous errors
+
diff --git a/tests/ui/malformed/issue-107423-unused-delim-only-one-no-pair.rs b/tests/ui/malformed/issue-107423-unused-delim-only-one-no-pair.rs
new file mode 100644
index 000000000000..4003ee37ca1e
--- /dev/null
+++ b/tests/ui/malformed/issue-107423-unused-delim-only-one-no-pair.rs
@@ -0,0 +1,7 @@
+// check that we don't generate a span that points beyond EOF
+
+// error-pattern: unclosed delimiter
+// error-pattern: unclosed delimiter
+// error-pattern: unclosed delimiter
+
+fn a(){{{
diff --git a/tests/ui/malformed/issue-107423-unused-delim-only-one-no-pair.stderr b/tests/ui/malformed/issue-107423-unused-delim-only-one-no-pair.stderr
new file mode 100644
index 000000000000..0479035171e8
--- /dev/null
+++ b/tests/ui/malformed/issue-107423-unused-delim-only-one-no-pair.stderr
@@ -0,0 +1,32 @@
+error: this file contains an unclosed delimiter
+  --> $DIR/issue-107423-unused-delim-only-one-no-pair.rs:7:11
+   |
+LL | fn a(){{{
+   |       --- ^
+   |       |||
+   |       ||unclosed delimiter
+   |       |unclosed delimiter
+   |       unclosed delimiter
+
+error: this file contains an unclosed delimiter
+  --> $DIR/issue-107423-unused-delim-only-one-no-pair.rs:7:11
+   |
+LL | fn a(){{{
+   |       --- ^
+   |       |||
+   |       ||unclosed delimiter
+   |       |unclosed delimiter
+   |       unclosed delimiter
+
+error: this file contains an unclosed delimiter
+  --> $DIR/issue-107423-unused-delim-only-one-no-pair.rs:7:11
+   |
+LL | fn a(){{{
+   |       --- ^
+   |       |||
+   |       ||unclosed delimiter
+   |       |unclosed delimiter
+   |       unclosed delimiter
+
+error: aborting due to 3 previous errors
+
diff --git a/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive-link-attr.rs b/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive-link-attr.rs
index 066048795c8a..0ccd441cc648 100644
--- a/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive-link-attr.rs
+++ b/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive-link-attr.rs
@@ -1,8 +1,11 @@
-// compile-flags: -Zunstable-options --crate-type rlib
+// gate-test-packed_bundled_libs
+
+// ignore-wasm32-bare
+// compile-flags: --crate-type rlib
+// error-pattern: link modifiers combination `+bundle,+whole-archive` is unstable when generating rlibs
 // build-fail
-// error-pattern: the linking modifiers `+bundle` and `+whole-archive` are not compatible with each other when generating rlibs
 
-#[link(name = "mylib", kind = "static", modifiers = "+bundle,+whole-archive")]
-extern "C" { }
+#[link(name = "rust_test_helpers", kind = "static", modifiers = "+bundle,+whole-archive")]
+extern "C" {}
 
-fn main() { }
+fn main() {}
diff --git a/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive-link-attr.stderr b/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive-link-attr.stderr
index 246efb8d627c..8a9fed740b04 100644
--- a/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive-link-attr.stderr
+++ b/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive-link-attr.stderr
@@ -1,6 +1,4 @@
-error: the linking modifiers `+bundle` and `+whole-archive` are not compatible with each other when generating rlibs
+error: link modifiers combination `+bundle,+whole-archive` is unstable when generating rlibs
 
-error: could not find native static library `mylib`, perhaps an -L flag is missing?
-
-error: aborting due to 2 previous errors
+error: aborting due to previous error
 
diff --git a/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive.rs b/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive.rs
index 1d0768d99cff..18d4b52a34c3 100644
--- a/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive.rs
+++ b/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive.rs
@@ -1,7 +1,8 @@
-// Mixing +bundle and +whole-archive is not allowed
+// gate-test-packed_bundled_libs
 
-// compile-flags: -l static:+bundle,+whole-archive=mylib -Zunstable-options --crate-type rlib
+// ignore-wasm32-bare
+// compile-flags: -l static:+bundle,+whole-archive=rust_test_helpers --crate-type rlib
+// error-pattern: link modifiers combination `+bundle,+whole-archive` is unstable when generating rlibs
 // build-fail
-// error-pattern: the linking modifiers `+bundle` and `+whole-archive` are not compatible with each other when generating rlibs
 
-fn main() { }
+fn main() {}
diff --git a/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive.stderr b/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive.stderr
index 246efb8d627c..8a9fed740b04 100644
--- a/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive.stderr
+++ b/tests/ui/native-library-link-flags/mix-bundle-and-whole-archive.stderr
@@ -1,6 +1,4 @@
-error: the linking modifiers `+bundle` and `+whole-archive` are not compatible with each other when generating rlibs
+error: link modifiers combination `+bundle,+whole-archive` is unstable when generating rlibs
 
-error: could not find native static library `mylib`, perhaps an -L flag is missing?
-
-error: aborting due to 2 previous errors
+error: aborting due to previous error
 
diff --git a/tests/ui/parser/anon-enums-are-ambiguous.rs b/tests/ui/parser/anon-enums-are-ambiguous.rs
new file mode 100644
index 000000000000..b0173cf98e0a
--- /dev/null
+++ b/tests/ui/parser/anon-enums-are-ambiguous.rs
@@ -0,0 +1,26 @@
+// check-pass
+
+macro_rules! test_expr {
+    ($expr:expr) => {};
+}
+
+macro_rules! test_ty {
+    ($a:ty | $b:ty) => {};
+}
+
+fn main() {
+    test_expr!(a as fn() -> B | C);
+    // Do not break the `|` operator.
+
+    test_expr!(|_: fn() -> B| C | D);
+    // Do not break `-> Ret` in closure args.
+
+    test_ty!(A | B);
+    // We can't support anon enums in arbitrary positions.
+
+    test_ty!(fn() -> A | B);
+    // Don't break fn ptrs.
+
+    test_ty!(impl Fn() -> A | B);
+    // Don't break parenthesized generics.
+}
diff --git a/tests/ui/parser/fake-anon-enums-in-macros.rs b/tests/ui/parser/fake-anon-enums-in-macros.rs
deleted file mode 100644
index 38fe8dee2382..000000000000
--- a/tests/ui/parser/fake-anon-enums-in-macros.rs
+++ /dev/null
@@ -1,20 +0,0 @@
-// build-pass
-macro_rules! check_ty {
-    ($Z:ty) => { compile_error!("triggered"); };
-    ($X:ty | $Y:ty) => { $X };
-}
-
-macro_rules! check {
-    ($Z:ty) => { compile_error!("triggered"); };
-    ($X:ty | $Y:ty) => { };
-}
-
-check! { i32 | u8 }
-
-fn foo(x: check_ty! { i32 | u8 }) -> check_ty! { i32 | u8 } {
-    x
-}
-fn main() {
-    let x: check_ty! { i32 | u8 } = 42;
-    let _: check_ty! { i32 | u8 } = foo(x);
-}
diff --git a/tests/ui/parser/fn-header-semantic-fail.stderr b/tests/ui/parser/fn-header-semantic-fail.stderr
index 038fdfb2d51b..2d8bd19a7310 100644
--- a/tests/ui/parser/fn-header-semantic-fail.stderr
+++ b/tests/ui/parser/fn-header-semantic-fail.stderr
@@ -209,8 +209,8 @@ note: ...which requires const checking `main::ff5`...
    |
 LL |     const async unsafe extern "C" fn ff5() {}
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   = note: ...which requires computing whether `impl core::future::future::Future` is freeze...
-   = note: ...which requires evaluating trait selection obligation `impl core::future::future::Future: core::marker::Freeze`...
+   = note: ...which requires computing whether `main::ff5::{opaque#0}` is freeze...
+   = note: ...which requires evaluating trait selection obligation `main::ff5::{opaque#0}: core::marker::Freeze`...
    = note: ...which again requires computing type of `main::ff5::{opaque#0}`, completing the cycle
 note: cycle used when checking item types in top-level module
   --> $DIR/fn-header-semantic-fail.rs:5:1
@@ -245,8 +245,8 @@ note: ...which requires const checking `main::` is freeze...
-   = note: ...which requires evaluating trait selection obligation `impl core::future::future::Future: core::marker::Freeze`...
+   = note: ...which requires computing whether `main::::ft5::{opaque#0}` is freeze...
+   = note: ...which requires evaluating trait selection obligation `main::::ft5::{opaque#0}: core::marker::Freeze`...
    = note: ...which again requires computing type of `main::::ft5::{opaque#0}`, completing the cycle
 note: cycle used when checking item types in top-level module
   --> $DIR/fn-header-semantic-fail.rs:5:1
@@ -281,8 +281,8 @@ note: ...which requires const checking `main::` is freeze...
-   = note: ...which requires evaluating trait selection obligation `impl core::future::future::Future: core::marker::Freeze`...
+   = note: ...which requires computing whether `main::::fi5::{opaque#0}` is freeze...
+   = note: ...which requires evaluating trait selection obligation `main::::fi5::{opaque#0}: core::marker::Freeze`...
    = note: ...which again requires computing type of `main::::fi5::{opaque#0}`, completing the cycle
 note: cycle used when checking item types in top-level module
   --> $DIR/fn-header-semantic-fail.rs:5:1
diff --git a/tests/ui/parser/issue-102806.stderr b/tests/ui/parser/issue-102806.stderr
index 6872b8bc0afe..ba8174a823b2 100644
--- a/tests/ui/parser/issue-102806.stderr
+++ b/tests/ui/parser/issue-102806.stderr
@@ -32,7 +32,12 @@ error: expected field pattern, found `...`
   --> $DIR/issue-102806.rs:21:22
    |
 LL |     let V3 { z: val, ... } = v;
-   |                      ^^^ help: to omit remaining fields, use one fewer `.`: `..`
+   |                      ^^^
+   |
+help: to omit remaining fields, use `..`
+   |
+LL |     let V3 { z: val, .. } = v;
+   |                      ~~
 
 error[E0063]: missing fields `x` and `y` in initializer of `V3`
   --> $DIR/issue-102806.rs:17:13
diff --git a/tests/ui/parser/issues/issue-63135.stderr b/tests/ui/parser/issues/issue-63135.stderr
index 80e9ac5bedf1..e0dc356d5467 100644
--- a/tests/ui/parser/issues/issue-63135.stderr
+++ b/tests/ui/parser/issues/issue-63135.stderr
@@ -20,7 +20,12 @@ error: expected field pattern, found `...`
   --> $DIR/issue-63135.rs:3:8
    |
 LL | fn i(n{...,f #
-   |        ^^^ help: to omit remaining fields, use one fewer `.`: `..`
+   |        ^^^
+   |
+help: to omit remaining fields, use `..`
+   |
+LL | fn i(n{..,f #
+   |        ~~
 
 error: expected `}`, found `,`
   --> $DIR/issue-63135.rs:3:11
diff --git a/tests/ui/parser/missing-expression-in-for-loop.rs b/tests/ui/parser/missing-expression-in-for-loop.rs
new file mode 100644
index 000000000000..518a89a0e6fc
--- /dev/null
+++ b/tests/ui/parser/missing-expression-in-for-loop.rs
@@ -0,0 +1,5 @@
+fn main() {
+    for i in {
+        //~^ ERROR missing expression to iterate on in `for` loop
+    }
+}
diff --git a/tests/ui/parser/missing-expression-in-for-loop.stderr b/tests/ui/parser/missing-expression-in-for-loop.stderr
new file mode 100644
index 000000000000..74a7c4224fae
--- /dev/null
+++ b/tests/ui/parser/missing-expression-in-for-loop.stderr
@@ -0,0 +1,13 @@
+error: missing expression to iterate on in `for` loop
+  --> $DIR/missing-expression-in-for-loop.rs:2:14
+   |
+LL |     for i in {
+   |              ^
+   |
+help: try adding an expression to the `for` loop
+   |
+LL |     for i in /* expression */ {
+   |              ++++++++++++++++
+
+error: aborting due to previous error
+
diff --git a/tests/ui/parser/recover-quantified-closure.rs b/tests/ui/parser/recover-quantified-closure.rs
index df22f5e065c8..10af39b70074 100644
--- a/tests/ui/parser/recover-quantified-closure.rs
+++ b/tests/ui/parser/recover-quantified-closure.rs
@@ -7,6 +7,6 @@ fn main() {
 enum Foo { Bar }
 fn foo(x: impl Iterator) {
     for ::Bar in x {}
-    //~^ ERROR expected one of `const`, `move`, `static`, `|`
+    //~^ ERROR expected one of `move`, `static`, `|`
     //~^^ ERROR `for<...>` binders for closures are experimental
 }
diff --git a/tests/ui/parser/recover-quantified-closure.stderr b/tests/ui/parser/recover-quantified-closure.stderr
index 9ec4d2c034d0..39eec80f658a 100644
--- a/tests/ui/parser/recover-quantified-closure.stderr
+++ b/tests/ui/parser/recover-quantified-closure.stderr
@@ -1,8 +1,8 @@
-error: expected one of `const`, `move`, `static`, `|`, or `||`, found `::`
+error: expected one of `move`, `static`, `|`, or `||`, found `::`
   --> $DIR/recover-quantified-closure.rs:9:14
    |
 LL |     for ::Bar in x {}
-   |              ^^ expected one of `const`, `move`, `static`, `|`, or `||`
+   |              ^^ expected one of `move`, `static`, `|`, or `||`
 
 error[E0658]: `for<...>` binders for closures are experimental
   --> $DIR/recover-quantified-closure.rs:2:5
diff --git a/tests/ui/parser/anon-enums.rs b/tests/ui/parser/type-ascription-in-pattern.rs
similarity index 68%
rename from tests/ui/parser/anon-enums.rs
rename to tests/ui/parser/type-ascription-in-pattern.rs
index 56b8a3d43bed..fec168afba1d 100644
--- a/tests/ui/parser/anon-enums.rs
+++ b/tests/ui/parser/type-ascription-in-pattern.rs
@@ -1,8 +1,7 @@
-fn foo(x: bool | i32) -> i32 | f64 {
-//~^ ERROR anonymous enums are not supported
-//~| ERROR anonymous enums are not supported
+fn foo(x: bool) -> i32 {
     match x {
         x: i32 => x, //~ ERROR expected
+        //~^ ERROR mismatched types
         true => 42.,
         false => 0.333,
     }
diff --git a/tests/ui/parser/anon-enums.stderr b/tests/ui/parser/type-ascription-in-pattern.stderr
similarity index 56%
rename from tests/ui/parser/anon-enums.stderr
rename to tests/ui/parser/type-ascription-in-pattern.stderr
index 841582256609..091907549936 100644
--- a/tests/ui/parser/anon-enums.stderr
+++ b/tests/ui/parser/type-ascription-in-pattern.stderr
@@ -1,29 +1,5 @@
-error: anonymous enums are not supported
-  --> $DIR/anon-enums.rs:1:16
-   |
-LL | fn foo(x: bool | i32) -> i32 | f64 {
-   |           ---- ^ ---
-   |
-   = help: create a named `enum` and use it here instead:
-           enum Name {
-               Variant1(bool),
-               Variant2(i32),
-           }
-
-error: anonymous enums are not supported
-  --> $DIR/anon-enums.rs:1:30
-   |
-LL | fn foo(x: bool | i32) -> i32 | f64 {
-   |                          --- ^ ---
-   |
-   = help: create a named `enum` and use it here instead:
-           enum Name {
-               Variant1(i32),
-               Variant2(f64),
-           }
-
 error: expected one of `@` or `|`, found `:`
-  --> $DIR/anon-enums.rs:5:10
+  --> $DIR/type-ascription-in-pattern.rs:3:10
    |
 LL |         x: i32 => x,
    |          ^ --- specifying the type of a pattern isn't supported
@@ -36,7 +12,7 @@ LL |         x::i32 => x,
    |          ~~
 
 error: expected one of `...`, `..=`, `..`, or `|`, found `:`
-  --> $DIR/anon-enums.rs:13:11
+  --> $DIR/type-ascription-in-pattern.rs:12:11
    |
 LL |         42: i32 => (),
    |           ^ --- specifying the type of a pattern isn't supported
@@ -44,7 +20,7 @@ LL |         42: i32 => (),
    |           expected one of `...`, `..=`, `..`, or `|`
 
 error: expected `|`, found `:`
-  --> $DIR/anon-enums.rs:14:10
+  --> $DIR/type-ascription-in-pattern.rs:13:10
    |
 LL |         _: f64 => (),
    |          ^ --- specifying the type of a pattern isn't supported
@@ -52,7 +28,7 @@ LL |         _: f64 => (),
    |          expected `|`
 
 error: expected one of `@` or `|`, found `:`
-  --> $DIR/anon-enums.rs:15:10
+  --> $DIR/type-ascription-in-pattern.rs:14:10
    |
 LL |         x: i32 => (),
    |          ^ --- specifying the type of a pattern isn't supported
@@ -64,5 +40,15 @@ help: maybe write a path separator here
 LL |         x::i32 => (),
    |          ~~
 
-error: aborting due to 6 previous errors
+error[E0308]: mismatched types
+  --> $DIR/type-ascription-in-pattern.rs:3:19
+   |
+LL | fn foo(x: bool) -> i32 {
+   |                    --- expected `i32` because of return type
+LL |     match x {
+LL |         x: i32 => x,
+   |                   ^ expected `i32`, found `bool`
 
+error: aborting due to 5 previous errors
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/print_type_sizes/async.stdout b/tests/ui/print_type_sizes/async.stdout
index 4588c0ebd81b..8fe936efc898 100644
--- a/tests/ui/print_type_sizes/async.stdout
+++ b/tests/ui/print_type_sizes/async.stdout
@@ -1,11 +1,11 @@
 print-type-size type: `[async fn body@$DIR/async.rs:8:36: 11:2]`: 16386 bytes, alignment: 1 bytes
 print-type-size     discriminant: 1 bytes
+print-type-size     variant `Unresumed`: 8192 bytes
+print-type-size         upvar `.arg`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes
 print-type-size     variant `Suspend0`: 16385 bytes
 print-type-size         upvar `.arg`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes
 print-type-size         local `.arg`: 8192 bytes
 print-type-size         local `.__awaitee`: 1 bytes
-print-type-size     variant `Unresumed`: 8192 bytes
-print-type-size         upvar `.arg`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes
 print-type-size     variant `Returned`: 8192 bytes
 print-type-size         upvar `.arg`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes
 print-type-size     variant `Panicked`: 8192 bytes
diff --git a/tests/ui/print_type_sizes/generator.stdout b/tests/ui/print_type_sizes/generator.stdout
index 13d850a66902..7c58d6ce5ffa 100644
--- a/tests/ui/print_type_sizes/generator.stdout
+++ b/tests/ui/print_type_sizes/generator.stdout
@@ -2,9 +2,9 @@ print-type-size type: `[generator@$DIR/generator.rs:10:5: 10:14]`: 8193 bytes, a
 print-type-size     discriminant: 1 bytes
 print-type-size     variant `Unresumed`: 8192 bytes
 print-type-size         upvar `.array`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes
+print-type-size     variant `Suspend0`: 8192 bytes
+print-type-size         upvar `.array`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes
 print-type-size     variant `Returned`: 8192 bytes
 print-type-size         upvar `.array`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes
 print-type-size     variant `Panicked`: 8192 bytes
 print-type-size         upvar `.array`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes
-print-type-size     variant `Suspend0`: 8192 bytes
-print-type-size         upvar `.array`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes
diff --git a/tests/ui/print_type_sizes/generator_discr_placement.stdout b/tests/ui/print_type_sizes/generator_discr_placement.stdout
index b294b2d139c3..f2a11c7a33ba 100644
--- a/tests/ui/print_type_sizes/generator_discr_placement.stdout
+++ b/tests/ui/print_type_sizes/generator_discr_placement.stdout
@@ -1,11 +1,11 @@
 print-type-size type: `[generator@$DIR/generator_discr_placement.rs:11:13: 11:15]`: 8 bytes, alignment: 4 bytes
 print-type-size     discriminant: 1 bytes
+print-type-size     variant `Unresumed`: 0 bytes
 print-type-size     variant `Suspend0`: 7 bytes
 print-type-size         padding: 3 bytes
 print-type-size         local `.w`: 4 bytes, alignment: 4 bytes
 print-type-size     variant `Suspend1`: 7 bytes
 print-type-size         padding: 3 bytes
 print-type-size         local `.z`: 4 bytes, alignment: 4 bytes
-print-type-size     variant `Unresumed`: 0 bytes
 print-type-size     variant `Returned`: 0 bytes
 print-type-size     variant `Panicked`: 0 bytes
diff --git a/tests/ui/query-system/no-query-in-printing-during-query-descr.rs b/tests/ui/query-system/no-query-in-printing-during-query-descr.rs
new file mode 100644
index 000000000000..45b7043e2f6f
--- /dev/null
+++ b/tests/ui/query-system/no-query-in-printing-during-query-descr.rs
@@ -0,0 +1,6 @@
+fn a() -> _ {
+    //~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
+    &a
+}
+
+fn main() {}
diff --git a/tests/ui/query-system/no-query-in-printing-during-query-descr.stderr b/tests/ui/query-system/no-query-in-printing-during-query-descr.stderr
new file mode 100644
index 000000000000..35e608b6b232
--- /dev/null
+++ b/tests/ui/query-system/no-query-in-printing-during-query-descr.stderr
@@ -0,0 +1,9 @@
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types
+  --> $DIR/no-query-in-printing-during-query-descr.rs:1:11
+   |
+LL | fn a() -> _ {
+   |           ^ not allowed in type signatures
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0121`.
diff --git a/tests/ui/rfc-2632-const-trait-impl/const-closure-parse-not-item.rs b/tests/ui/rfc-2632-const-trait-impl/const-closure-parse-not-item.rs
new file mode 100644
index 000000000000..2c99d8bf1c67
--- /dev/null
+++ b/tests/ui/rfc-2632-const-trait-impl/const-closure-parse-not-item.rs
@@ -0,0 +1,10 @@
+// check-pass
+
+#![feature(const_trait_impl, const_closures)]
+#![allow(incomplete_features)]
+
+const fn test() -> impl ~const Fn() {
+    const move || {}
+}
+
+fn main() {}
diff --git a/tests/ui/stats/hir-stats.rs b/tests/ui/stats/hir-stats.rs
index 0b89d0b160b3..9bb87026b641 100644
--- a/tests/ui/stats/hir-stats.rs
+++ b/tests/ui/stats/hir-stats.rs
@@ -1,7 +1,11 @@
 // check-pass
 // compile-flags: -Zhir-stats
 // only-x86_64
-// ignore-stage1  FIXME: remove after next bootstrap bump
+
+// Type layouts sometimes change. When that happens, until the next bootstrap
+// bump occurs, stage1 and stage2 will give different outputs for this test.
+// Add an `ignore-stage1` comment marker to work around that problem during
+// that time.
 
 // The aim here is to include at least one of every different type of top-level
 // AST/HIR node reported by `-Zhir-stats`.
diff --git a/tests/ui/structs-enums/struct-enum-ignoring-field-with-underscore.rs b/tests/ui/structs-enums/struct-enum-ignoring-field-with-underscore.rs
index c30b8a1e1f1a..b569993c6143 100644
--- a/tests/ui/structs-enums/struct-enum-ignoring-field-with-underscore.rs
+++ b/tests/ui/structs-enums/struct-enum-ignoring-field-with-underscore.rs
@@ -7,6 +7,5 @@ fn main() {
     let foo = Some(Foo::Other);
 
     if let Some(Foo::Bar {_}) = foo {}
-    //~^ ERROR expected identifier, found reserved identifier `_`
-    //~| ERROR pattern does not mention field `bar` [E0027]
+    //~^ ERROR expected field pattern, found `_`
 }
diff --git a/tests/ui/structs-enums/struct-enum-ignoring-field-with-underscore.stderr b/tests/ui/structs-enums/struct-enum-ignoring-field-with-underscore.stderr
index 16f751444a55..2f3a150e5cba 100644
--- a/tests/ui/structs-enums/struct-enum-ignoring-field-with-underscore.stderr
+++ b/tests/ui/structs-enums/struct-enum-ignoring-field-with-underscore.stderr
@@ -1,24 +1,13 @@
-error: expected identifier, found reserved identifier `_`
+error: expected field pattern, found `_`
   --> $DIR/struct-enum-ignoring-field-with-underscore.rs:9:27
    |
 LL |     if let Some(Foo::Bar {_}) = foo {}
-   |                           ^ expected identifier, found reserved identifier
+   |                           ^
+   |
+help: to omit remaining fields, use `..`
+   |
+LL |     if let Some(Foo::Bar {..}) = foo {}
+   |                           ~~
 
-error[E0027]: pattern does not mention field `bar`
-  --> $DIR/struct-enum-ignoring-field-with-underscore.rs:9:17
-   |
-LL |     if let Some(Foo::Bar {_}) = foo {}
-   |                 ^^^^^^^^^^^^ missing field `bar`
-   |
-help: include the missing field in the pattern
-   |
-LL |     if let Some(Foo::Bar {_, bar }) = foo {}
-   |                            ~~~~~~~
-help: if you don't care about this missing field, you can explicitly ignore it
-   |
-LL |     if let Some(Foo::Bar {_, .. }) = foo {}
-   |                            ~~~~~~
+error: aborting due to previous error
 
-error: aborting due to 2 previous errors
-
-For more information about this error, try `rustc --explain E0027`.
diff --git a/tests/ui/suggest-null-ptr.fixed b/tests/ui/suggest-null-ptr.fixed
new file mode 100644
index 000000000000..40f900c7d30c
--- /dev/null
+++ b/tests/ui/suggest-null-ptr.fixed
@@ -0,0 +1,31 @@
+// run-rustfix
+
+// Suggest providing a std::ptr::null{,_mut}() to a function that takes in a raw
+// pointer if a literal 0 was provided by the user.
+
+extern "C" {
+    fn foo(ptr: *const u8);
+
+    fn foo_mut(ptr: *mut u8);
+
+    fn usize(ptr: *const usize);
+
+    fn usize_mut(ptr: *mut usize);
+}
+
+fn main() {
+    unsafe {
+        foo(std::ptr::null());
+        //~^ mismatched types [E0308]
+        //~| if you meant to create a null pointer, use `std::ptr::null()`
+        foo_mut(std::ptr::null_mut());
+        //~^ mismatched types [E0308]
+        //~| if you meant to create a null pointer, use `std::ptr::null_mut()`
+        usize(std::ptr::null());
+        //~^ mismatched types [E0308]
+        //~| if you meant to create a null pointer, use `std::ptr::null()`
+        usize_mut(std::ptr::null_mut());
+        //~^ mismatched types [E0308]
+        //~| if you meant to create a null pointer, use `std::ptr::null_mut()`
+    }
+}
diff --git a/tests/ui/suggest-null-ptr.rs b/tests/ui/suggest-null-ptr.rs
new file mode 100644
index 000000000000..19b595bf769e
--- /dev/null
+++ b/tests/ui/suggest-null-ptr.rs
@@ -0,0 +1,31 @@
+// run-rustfix
+
+// Suggest providing a std::ptr::null{,_mut}() to a function that takes in a raw
+// pointer if a literal 0 was provided by the user.
+
+extern "C" {
+    fn foo(ptr: *const u8);
+
+    fn foo_mut(ptr: *mut u8);
+
+    fn usize(ptr: *const usize);
+
+    fn usize_mut(ptr: *mut usize);
+}
+
+fn main() {
+    unsafe {
+        foo(0);
+        //~^ mismatched types [E0308]
+        //~| if you meant to create a null pointer, use `std::ptr::null()`
+        foo_mut(0);
+        //~^ mismatched types [E0308]
+        //~| if you meant to create a null pointer, use `std::ptr::null_mut()`
+        usize(0);
+        //~^ mismatched types [E0308]
+        //~| if you meant to create a null pointer, use `std::ptr::null()`
+        usize_mut(0);
+        //~^ mismatched types [E0308]
+        //~| if you meant to create a null pointer, use `std::ptr::null_mut()`
+    }
+}
diff --git a/tests/ui/suggest-null-ptr.stderr b/tests/ui/suggest-null-ptr.stderr
new file mode 100644
index 000000000000..66a79d0749ee
--- /dev/null
+++ b/tests/ui/suggest-null-ptr.stderr
@@ -0,0 +1,83 @@
+error[E0308]: mismatched types
+  --> $DIR/suggest-null-ptr.rs:18:13
+   |
+LL |         foo(0);
+   |         --- ^ expected `*const u8`, found `usize`
+   |         |
+   |         arguments to this function are incorrect
+   |
+   = note: expected raw pointer `*const u8`
+                     found type `usize`
+note: function defined here
+  --> $DIR/suggest-null-ptr.rs:7:8
+   |
+LL |     fn foo(ptr: *const u8);
+   |        ^^^
+help: if you meant to create a null pointer, use `std::ptr::null()`
+   |
+LL |         foo(std::ptr::null());
+   |             ~~~~~~~~~~~~~~~~
+
+error[E0308]: mismatched types
+  --> $DIR/suggest-null-ptr.rs:21:17
+   |
+LL |         foo_mut(0);
+   |         ------- ^ expected `*mut u8`, found `usize`
+   |         |
+   |         arguments to this function are incorrect
+   |
+   = note: expected raw pointer `*mut u8`
+                     found type `usize`
+note: function defined here
+  --> $DIR/suggest-null-ptr.rs:9:8
+   |
+LL |     fn foo_mut(ptr: *mut u8);
+   |        ^^^^^^^
+help: if you meant to create a null pointer, use `std::ptr::null_mut()`
+   |
+LL |         foo_mut(std::ptr::null_mut());
+   |                 ~~~~~~~~~~~~~~~~~~~~
+
+error[E0308]: mismatched types
+  --> $DIR/suggest-null-ptr.rs:24:15
+   |
+LL |         usize(0);
+   |         ----- ^ expected `*const usize`, found `usize`
+   |         |
+   |         arguments to this function are incorrect
+   |
+   = note: expected raw pointer `*const usize`
+                     found type `usize`
+note: function defined here
+  --> $DIR/suggest-null-ptr.rs:11:8
+   |
+LL |     fn usize(ptr: *const usize);
+   |        ^^^^^
+help: if you meant to create a null pointer, use `std::ptr::null()`
+   |
+LL |         usize(std::ptr::null());
+   |               ~~~~~~~~~~~~~~~~
+
+error[E0308]: mismatched types
+  --> $DIR/suggest-null-ptr.rs:27:19
+   |
+LL |         usize_mut(0);
+   |         --------- ^ expected `*mut usize`, found `usize`
+   |         |
+   |         arguments to this function are incorrect
+   |
+   = note: expected raw pointer `*mut usize`
+                     found type `usize`
+note: function defined here
+  --> $DIR/suggest-null-ptr.rs:13:8
+   |
+LL |     fn usize_mut(ptr: *mut usize);
+   |        ^^^^^^^^^
+help: if you meant to create a null pointer, use `std::ptr::null_mut()`
+   |
+LL |         usize_mut(std::ptr::null_mut());
+   |                   ~~~~~~~~~~~~~~~~~~~~
+
+error: aborting due to 4 previous errors
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/suggestions/suggest-fn-ptr-for-fn-item-in-fn-ret.fixed b/tests/ui/suggestions/suggest-fn-ptr-for-fn-item-in-fn-ret.fixed
new file mode 100644
index 000000000000..abb9ef917743
--- /dev/null
+++ b/tests/ui/suggestions/suggest-fn-ptr-for-fn-item-in-fn-ret.fixed
@@ -0,0 +1,12 @@
+// run-rustfix
+
+#![allow(unused)]
+
+struct Wrapper(T);
+
+fn bar() -> Wrapper { Wrapper(foo) }
+//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
+
+fn foo() {}
+
+fn main() {}
diff --git a/tests/ui/suggestions/suggest-fn-ptr-for-fn-item-in-fn-ret.rs b/tests/ui/suggestions/suggest-fn-ptr-for-fn-item-in-fn-ret.rs
new file mode 100644
index 000000000000..d2a79c386941
--- /dev/null
+++ b/tests/ui/suggestions/suggest-fn-ptr-for-fn-item-in-fn-ret.rs
@@ -0,0 +1,12 @@
+// run-rustfix
+
+#![allow(unused)]
+
+struct Wrapper(T);
+
+fn bar() -> _ { Wrapper(foo) }
+//~^ ERROR the placeholder `_` is not allowed within types on item signatures for return types
+
+fn foo() {}
+
+fn main() {}
diff --git a/tests/ui/suggestions/suggest-fn-ptr-for-fn-item-in-fn-ret.stderr b/tests/ui/suggestions/suggest-fn-ptr-for-fn-item-in-fn-ret.stderr
new file mode 100644
index 000000000000..347a038525b6
--- /dev/null
+++ b/tests/ui/suggestions/suggest-fn-ptr-for-fn-item-in-fn-ret.stderr
@@ -0,0 +1,12 @@
+error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types
+  --> $DIR/suggest-fn-ptr-for-fn-item-in-fn-ret.rs:7:13
+   |
+LL | fn bar() -> _ { Wrapper(foo) }
+   |             ^
+   |             |
+   |             not allowed in type signatures
+   |             help: replace with the correct return type: `Wrapper`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0121`.
diff --git a/tests/ui/traits/negative-impls/negated-auto-traits-error.stderr b/tests/ui/traits/negative-impls/negated-auto-traits-error.stderr
index ce690b749f55..b680ce7f9901 100644
--- a/tests/ui/traits/negative-impls/negated-auto-traits-error.stderr
+++ b/tests/ui/traits/negative-impls/negated-auto-traits-error.stderr
@@ -101,10 +101,10 @@ LL | fn is_send(_: T) {}
    |               ^^^^ required by this bound in `is_send`
 
 error[E0277]: `main::TestType` cannot be sent between threads safely
-  --> $DIR/negated-auto-traits-error.rs:66:13
+  --> $DIR/negated-auto-traits-error.rs:66:20
    |
 LL |     is_sync(Outer2(TestType));
-   |     ------- ^^^^^^^^^^^^^^^^ `main::TestType` cannot be sent between threads safely
+   |     -------        ^^^^^^^^ `main::TestType` cannot be sent between threads safely
    |     |
    |     required by a bound introduced by this call
    |
diff --git a/tests/ui/typeck/issue-89856.fixed b/tests/ui/typeck/issue-89856.fixed
new file mode 100644
index 000000000000..3e1a006efa06
--- /dev/null
+++ b/tests/ui/typeck/issue-89856.fixed
@@ -0,0 +1,18 @@
+// run-rustfix
+
+fn take_str_maybe(_: Option<&str>) { }
+fn main() {
+    let string = String::from("Hello, world");
+
+    let option: Option = Some(string.clone());
+    take_str_maybe(option.as_deref());
+    //~^ ERROR: mismatched types [E0308]
+
+    let option_ref = Some(&string);
+    take_str_maybe(option_ref.map(|x| x.as_str()));
+    //~^ ERROR: mismatched types [E0308]
+
+    let option_ref_ref = option_ref.as_ref();
+    take_str_maybe(option_ref_ref.map(|x| x.as_str()));
+    //~^ ERROR: mismatched types [E0308]
+}
diff --git a/tests/ui/typeck/issue-89856.rs b/tests/ui/typeck/issue-89856.rs
index b021e349e358..cfe6e19b303f 100644
--- a/tests/ui/typeck/issue-89856.rs
+++ b/tests/ui/typeck/issue-89856.rs
@@ -1,8 +1,18 @@
-fn take_str_maybe(x: Option<&str>) -> Option<&str> { None }
+// run-rustfix
 
+fn take_str_maybe(_: Option<&str>) { }
 fn main() {
     let string = String::from("Hello, world");
-    let option = Some(&string);
+
+    let option: Option = Some(string.clone());
     take_str_maybe(option);
     //~^ ERROR: mismatched types [E0308]
+
+    let option_ref = Some(&string);
+    take_str_maybe(option_ref);
+    //~^ ERROR: mismatched types [E0308]
+
+    let option_ref_ref = option_ref.as_ref();
+    take_str_maybe(option_ref_ref);
+    //~^ ERROR: mismatched types [E0308]
 }
diff --git a/tests/ui/typeck/issue-89856.stderr b/tests/ui/typeck/issue-89856.stderr
index 6b9cbe52c255..bd76f1724682 100644
--- a/tests/ui/typeck/issue-89856.stderr
+++ b/tests/ui/typeck/issue-89856.stderr
@@ -1,23 +1,63 @@
 error[E0308]: mismatched types
-  --> $DIR/issue-89856.rs:6:20
+  --> $DIR/issue-89856.rs:8:20
    |
 LL |     take_str_maybe(option);
-   |     -------------- ^^^^^^ expected `Option<&str>`, found `Option<&String>`
+   |     -------------- ^^^^^^ expected `Option<&str>`, found `Option`
+   |     |
+   |     arguments to this function are incorrect
+   |
+   = note: expected enum `Option<&str>`
+              found enum `Option`
+note: function defined here
+  --> $DIR/issue-89856.rs:3:4
+   |
+LL | fn take_str_maybe(_: Option<&str>) { }
+   |    ^^^^^^^^^^^^^^ ---------------
+help: try converting the passed type into a `&str`
+   |
+LL |     take_str_maybe(option.as_deref());
+   |                          +++++++++++
+
+error[E0308]: mismatched types
+  --> $DIR/issue-89856.rs:12:20
+   |
+LL |     take_str_maybe(option_ref);
+   |     -------------- ^^^^^^^^^^ expected `Option<&str>`, found `Option<&String>`
    |     |
    |     arguments to this function are incorrect
    |
    = note: expected enum `Option<&str>`
               found enum `Option<&String>`
 note: function defined here
-  --> $DIR/issue-89856.rs:1:4
+  --> $DIR/issue-89856.rs:3:4
    |
-LL | fn take_str_maybe(x: Option<&str>) -> Option<&str> { None }
+LL | fn take_str_maybe(_: Option<&str>) { }
    |    ^^^^^^^^^^^^^^ ---------------
 help: try converting the passed type into a `&str`
    |
-LL |     take_str_maybe(option.map(|x| &**x));
-   |                          ++++++++++++++
+LL |     take_str_maybe(option_ref.map(|x| x.as_str()));
+   |                              ++++++++++++++++++++
 
-error: aborting due to previous error
+error[E0308]: mismatched types
+  --> $DIR/issue-89856.rs:16:20
+   |
+LL |     take_str_maybe(option_ref_ref);
+   |     -------------- ^^^^^^^^^^^^^^ expected `Option<&str>`, found `Option<&&String>`
+   |     |
+   |     arguments to this function are incorrect
+   |
+   = note: expected enum `Option<&str>`
+              found enum `Option<&&String>`
+note: function defined here
+  --> $DIR/issue-89856.rs:3:4
+   |
+LL | fn take_str_maybe(_: Option<&str>) { }
+   |    ^^^^^^^^^^^^^^ ---------------
+help: try converting the passed type into a `&str`
+   |
+LL |     take_str_maybe(option_ref_ref.map(|x| x.as_str()));
+   |                                  ++++++++++++++++++++
+
+error: aborting due to 3 previous errors
 
 For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/typeck/issue-90027-async-fn-return-suggestion.rs b/tests/ui/typeck/issue-90027-async-fn-return-suggestion.rs
new file mode 100644
index 000000000000..8ccb15ca48a4
--- /dev/null
+++ b/tests/ui/typeck/issue-90027-async-fn-return-suggestion.rs
@@ -0,0 +1,21 @@
+// edition:2018
+
+async fn hello() { //~ HELP try adding a return type
+    0
+    //~^ ERROR [E0308]
+}
+
+async fn world() -> () {
+    0
+    //~^ ERROR [E0308]
+}
+
+async fn suggest_await_in_async_fn_return() {
+    hello()
+    //~^ ERROR mismatched types [E0308]
+    //~| HELP consider `await`ing on the `Future`
+    //~| HELP consider using a semicolon here
+    //~| SUGGESTION .await
+}
+
+fn main() {}
diff --git a/tests/ui/typeck/issue-90027-async-fn-return-suggestion.stderr b/tests/ui/typeck/issue-90027-async-fn-return-suggestion.stderr
new file mode 100644
index 000000000000..6a1a9f45bc62
--- /dev/null
+++ b/tests/ui/typeck/issue-90027-async-fn-return-suggestion.stderr
@@ -0,0 +1,36 @@
+error[E0308]: mismatched types
+  --> $DIR/issue-90027-async-fn-return-suggestion.rs:4:5
+   |
+LL | async fn hello() {
+   |                  - help: try adding a return type: `-> i32`
+LL |     0
+   |     ^ expected `()`, found integer
+
+error[E0308]: mismatched types
+  --> $DIR/issue-90027-async-fn-return-suggestion.rs:9:5
+   |
+LL | async fn world() -> () {
+   |                     -- expected `()` because of return type
+LL |     0
+   |     ^ expected `()`, found integer
+
+error[E0308]: mismatched types
+  --> $DIR/issue-90027-async-fn-return-suggestion.rs:14:5
+   |
+LL |     hello()
+   |     ^^^^^^^ expected `()`, found opaque type
+   |
+   = note: expected unit type `()`
+            found opaque type `impl Future`
+help: consider `await`ing on the `Future`
+   |
+LL |     hello().await
+   |            ++++++
+help: consider using a semicolon here
+   |
+LL |     hello();
+   |            +
+
+error: aborting due to 3 previous errors
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/tests/ui/uninhabited/issue-107505.rs b/tests/ui/uninhabited/issue-107505.rs
new file mode 100644
index 000000000000..61598541ddf0
--- /dev/null
+++ b/tests/ui/uninhabited/issue-107505.rs
@@ -0,0 +1,18 @@
+// compile-flags: --crate-type=lib
+// check-pass
+
+// Make sure we don't pass inference variables to uninhabitedness checks in borrowck
+
+struct Command<'s> {
+    session: &'s (),
+    imp: std::convert::Infallible,
+}
+
+fn command(_: &()) -> Command<'_> {
+    unreachable!()
+}
+
+fn with_session<'s>(a: &std::process::Command, b: &'s ()) -> Command<'s> {
+    a.get_program();
+    command(b)
+}
diff --git a/tests/ui/where-clauses/self-in-where-clause-allowed.rs b/tests/ui/where-clauses/self-in-where-clause-allowed.rs
new file mode 100644
index 000000000000..6cf5ed2e46ae
--- /dev/null
+++ b/tests/ui/where-clauses/self-in-where-clause-allowed.rs
@@ -0,0 +1,23 @@
+// check-fail
+
+#![feature(auto_traits)]
+#![deny(where_clauses_object_safety)]
+
+auto trait AutoTrait {}
+
+trait Trait {
+    fn static_lifetime_bound(&self) where Self: 'static {}
+
+    fn arg_lifetime_bound<'a>(&self, _arg: &'a ()) where Self: 'a {}
+
+    fn autotrait_bound(&self) where Self: AutoTrait {}
+}
+
+impl Trait for () {}
+
+fn main() {
+    let trait_object = &() as &dyn Trait;
+    trait_object.static_lifetime_bound();
+    trait_object.arg_lifetime_bound(&());
+    trait_object.autotrait_bound(); //~ ERROR: the trait bound `dyn Trait: AutoTrait` is not satisfied
+}
diff --git a/tests/ui/where-clauses/self-in-where-clause-allowed.stderr b/tests/ui/where-clauses/self-in-where-clause-allowed.stderr
new file mode 100644
index 000000000000..ea51f5084f87
--- /dev/null
+++ b/tests/ui/where-clauses/self-in-where-clause-allowed.stderr
@@ -0,0 +1,15 @@
+error[E0277]: the trait bound `dyn Trait: AutoTrait` is not satisfied
+  --> $DIR/self-in-where-clause-allowed.rs:22:18
+   |
+LL |     trait_object.autotrait_bound();
+   |                  ^^^^^^^^^^^^^^^ the trait `AutoTrait` is not implemented for `dyn Trait`
+   |
+note: required by a bound in `Trait::autotrait_bound`
+  --> $DIR/self-in-where-clause-allowed.rs:13:43
+   |
+LL |     fn autotrait_bound(&self) where Self: AutoTrait {}
+   |                                           ^^^^^^^^^ required by this bound in `Trait::autotrait_bound`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/triagebot.toml b/triagebot.toml
index 79958729fc52..62a99b704388 100644
--- a/triagebot.toml
+++ b/triagebot.toml
@@ -250,7 +250,8 @@ new_pr = true
 
 [autolabel."WG-trait-system-refactor"]
 trigger_files = [
-    "compiler/rustc_trait_selection/src/solve"
+    "compiler/rustc_trait_selection/src/solve",
+    "compiler/rustc_middle/src/traits/solve.rs"
 ]
 
 [notify-zulip."I-prioritize"]
@@ -440,15 +441,15 @@ cc = ["@oli-obk", "@RalfJung", "@JakobDegen", "@davidtwco", "@celinval", "@vakar
 
 [mentions."compiler/rustc_error_messages"]
 message = "`rustc_error_messages` was changed"
-cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@estebank", "@TaKO8Ki"]
+cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@TaKO8Ki"]
 
 [mentions."compiler/rustc_errors/src/translation.rs"]
 message = "`rustc_errors::translation` was changed"
-cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@estebank", "@TaKO8Ki"]
+cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@TaKO8Ki"]
 
 [mentions."compiler/rustc_macros/src/diagnostics"]
 message = "`rustc_macros::diagnostics` was changed"
-cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@estebank", "@TaKO8Ki"]
+cc = ["@davidtwco", "@compiler-errors", "@JohnTitor", "@TaKO8Ki"]
 
 [mentions."compiler/rustc_target/src/spec"]
 message = """
@@ -459,6 +460,14 @@ These commits modify **compiler targets**.
 [mentions."src/doc/style-guide"]
 cc = ["@rust-lang/style"]
 
+[mentions."Cargo.lock"]
+message = """
+These commits modify the `Cargo.lock` file. Random changes to `Cargo.lock` can be introduced when switching branches and rebasing PRs. 
+This was probably unintentional and should be reverted before this PR is merged. 
+
+If this was intentional then you can ignore this comment.
+"""
+
 [assign]
 warn_non_default_branch = true
 contributing_url = "https://rustc-dev-guide.rust-lang.org/contributing.html"
@@ -466,7 +475,6 @@ contributing_url = "https://rustc-dev-guide.rust-lang.org/contributing.html"
 [assign.adhoc_groups]
 compiler-team = [
     "@cjgillot",
-    "@estebank",
     "@petrochenkov",
     "@davidtwco",
     "@oli-obk",
@@ -523,13 +531,11 @@ incremental = [
 diagnostics = [
     "@compiler-errors",
     "@davidtwco",
-    "@estebank",
     "@oli-obk",
     "@TaKO8Ki",
 ]
 parser = [
     "@davidtwco",
-    "@estebank",
     "@nnethercote",
     "@petrochenkov",
 ]