Merge from rustc

src/ci/docker/host-x86_64/dist-x86_64-linux/dist.sh

@@ -10,4 +10,7 @@ python3 ../x.py build --set rust.debug=true opt-dist
     build-manifest bootstrap
 
 # Use GCC for building GCC, as it seems to behave badly when built with Clang
-CC=/rustroot/bin/cc CXX=/rustroot/bin/c++ python3 ../x.py dist gcc
+# Only build GCC on full builds, not try builds
+if [ "${DIST_TRY_BUILD:-0}" == "0" ]; then
+    CC=/rustroot/bin/cc CXX=/rustroot/bin/c++ python3 ../x.py dist gcc
+fi

src/librustdoc/html/render/print_item.rs

@@ -1703,6 +1703,7 @@ fn render_enum_fields(
                 if v.is_stripped() {
                     continue;
                 }
+                write!(w, "{}", render_attributes_in_pre(v, TAB, cx))?;
                 w.write_str(TAB)?;
                 match v.kind {
                     clean::VariantItem(ref var) => match var.kind {

src/tools/build-manifest/src/main.rs

@@ -14,6 +14,7 @@ use crate::versions::{PkgType, Versions};
 
 static HOSTS: &[&str] = &[
     "aarch64-apple-darwin",
+    "aarch64-pc-windows-gnullvm",
     "aarch64-pc-windows-msvc",
     "aarch64-unknown-linux-gnu",
     "aarch64-unknown-linux-musl",
@@ -44,6 +45,7 @@ static HOSTS: &[&str] = &[
     "x86_64-apple-darwin",
     "x86_64-pc-solaris",
     "x86_64-pc-windows-gnu",
+    "x86_64-pc-windows-gnullvm",
     "x86_64-pc-windows-msvc",
     "x86_64-unknown-freebsd",
     "x86_64-unknown-illumos",
@@ -470,7 +472,7 @@ impl Builder {
                 }
                 // so is rust-mingw if it's available for the target
                 PkgType::RustMingw => {
-                    if host.contains("pc-windows-gnu") {
+                    if host.ends_with("pc-windows-gnu") {
                         components.push(host_component(pkg));
                     }
                 }

src/tools/cargo

@@ -1 +1 @@
-Subproject commit 409fed7dc1553d49cb9a8c0637d12d65571346ce
+Subproject commit 930b4f62cfcd1f0eabdb30a56d91bf6844b739bf

src/tools/miri/README.md

@@ -595,7 +595,7 @@ Definite bugs found:
 * [Occasional memory leak in `std::mpsc` channels](https://github.com/rust-lang/rust/issues/121582) (original code in [crossbeam](https://github.com/crossbeam-rs/crossbeam/pull/1084))
 * [Weak-memory-induced memory leak in Windows thread-local storage](https://github.com/rust-lang/rust/pull/124281)
 * [A bug in the new `RwLock::downgrade` implementation](https://rust-lang.zulipchat.com/#narrow/channel/269128-miri/topic/Miri.20error.20library.20test) (caught by Miri before it landed in the Rust repo)
-* [Mockall reading unintialized memory when mocking `std::io::Read::read`, even if all expectations are satisfied](https://github.com/asomers/mockall/issues/647) (caught by Miri running Tokio's test suite)
+* [Mockall reading uninitialized memory when mocking `std::io::Read::read`, even if all expectations are satisfied](https://github.com/asomers/mockall/issues/647) (caught by Miri running Tokio's test suite)
 * [`ReentrantLock` not correctly dealing with reuse of addresses for TLS storage of different threads](https://github.com/rust-lang/rust/pull/141248)
 
 Violations of [Stacked Borrows] found that are likely bugs (but Stacked Borrows is currently just an experiment):

src/tools/miri/src/lib.rs

@@ -173,7 +173,7 @@ pub const MIRI_DEFAULT_ARGS: &[&str] = &[
     "-Zmir-emit-retag",
     "-Zmir-preserve-ub",
     "-Zmir-opt-level=0",
-    "-Zmir-enable-passes=-CheckAlignment,-CheckNull",
+    "-Zmir-enable-passes=-CheckAlignment,-CheckNull,-CheckEnums",
     // Deduplicating diagnostics means we miss events when tracking what happens during an
     // execution. Let's not do that.
     "-Zdeduplicate-diagnostics=no",

src/tools/miri/tests/fail/dangling_pointers/dangling_pointer_to_raw_pointer.rs

@@ -6,7 +6,7 @@ fn direct_raw(x: *const (i32, i32)) -> *const i32 {
 
 // Ensure that if a raw pointer is created via an intermediate
 // reference, we catch that. (Just in case someone decides to
-// desugar this differenly or so.)
+// desugar this differently or so.)
 fn via_ref(x: *const (i32, i32)) -> *const i32 {
     unsafe { &(*x).0 as *const i32 } //~ERROR: dangling pointer
 }

src/tools/opt-dist/src/exec.rs

@@ -122,7 +122,12 @@ impl Bootstrap {
         let metrics_path = env.build_root().join("build").join("metrics.json");
         let args = dist_args.iter().map(|arg| arg.as_str()).collect::<Vec<_>>();
         let cmd = cmd(&args).env("RUST_BACKTRACE", "full");
-        let cmd = add_shared_x_flags(env, cmd);
+        let mut cmd = add_shared_x_flags(env, cmd);
+        if env.is_fast_try_build() {
+            // We set build.extended=false for fast try builds, but we still need Cargo
+            cmd = cmd.arg("cargo");
+        }
+
         Self { cmd, metrics_path }
     }
 
@@ -189,5 +194,18 @@ impl Bootstrap {
 }
 
 fn add_shared_x_flags(env: &Environment, cmd: CmdBuilder) -> CmdBuilder {
-    if env.is_fast_try_build() { cmd.arg("--set").arg("rust.deny-warnings=false") } else { cmd }
+    if env.is_fast_try_build() {
+        // Skip things that cannot be skipped through `x ... --skip`
+        cmd.arg("--set")
+            .arg("rust.llvm-bitcode-linker=false")
+            // Skip wasm-component-ld. This also skips cargo, which we need to re-enable for dist
+            .arg("--set")
+            .arg("build.extended=false")
+            .arg("--set")
+            .arg("rust.codegen-backends=['llvm']")
+            .arg("--set")
+            .arg("rust.deny-warnings=false")
+    } else {
+        cmd
+    }
 }

src/tools/opt-dist/src/main.rs

@@ -407,13 +407,18 @@ fn main() -> anyhow::Result<()> {
         for target in [
             "rust-docs",
             "rustc-docs",
+            "rustc-dev",
+            "rust-dev",
             "rust-docs-json",
             "rust-analyzer",
             "rustc-src",
+            "extended",
             "clippy",
             "miri",
             "rustfmt",
             "gcc",
+            "generate-copyright",
+            "bootstrap",
         ] {
             build_args.extend(["--skip".to_string(), target.to_string()]);
         }

src/tools/test-float-parse/src/ui.rs

@@ -118,7 +118,7 @@ pub fn finish_all(tests: &[TestInfo], total_elapsed: Duration, cfg: &Config) ->
         match result {
             Ok(FinishedAll) => (),
             Err(EarlyExit::Timeout) => {
-                println!("      exited early; exceded {:?} timeout", cfg.timeout)
+                println!("      exited early; exceeded {:?} timeout", cfg.timeout)
             }
             Err(EarlyExit::MaxFailures) => {
                 println!("      exited early; exceeded {:?} max failures", cfg.max_failures)