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Author SHA1 Message Date
bors
874dec25ed Auto merge of #52115 - Dylan-DPC:feature/nll-liveness-regions, r=nikomatsakis 
only compute liveness for variables whose types include regions

Closes #52034

r? @nikomatsakis
 2018-07-21 21:01:17 +00:00
bors
509cbf3e8e Auto merge of #52498 - oli-obk:const_prop, r=nikomatsakis 
Const propagate casts

fixes #49760

So... This fixes the original issue about the missing warnings.

But our test suite contains fun things like

```rust
fn foo() {}
assert_eq!(foo as i16, foo as usize as i16);
```

Which, will result in

> a raw memory access tried to access part of a pointer value as raw bytes

on both sides of the assertion. Because well... that's exactly what's going on! We're ripping out 16 bits of a pointer.
 2018-07-20 13:22:36 +00:00
dylan_DPC
4e3339efda move NllLivenessMap and LocalWithRegion to liveness_map 2018-07-20 17:51:34 +05:30
Niko Matsakis
43b69c2777 make liveness generic over set of local variables 
We used to hardcode that we wanted the liveness of *all* variables.
This can now be configured by selecting an alternative index type
V and providing a (partial) map from locals to that new type V.
 2018-07-19 23:15:26 +05:30
dylan_DPC
f2b5583f60 add trait structs and other changes from V to local 2018-07-19 23:15:16 +05:30
dylan_DPC
38c7d1ab7c add generic parameter 2018-07-19 23:14:10 +05:30
Oliver Schneider
9329957d32 Const-propagate casts 2018-07-18 18:52:43 +02:00
bors
29ee65411c Auto merge of #52364 - ljedrz:mir_remove_clone, r=RalfJung 
Remove a clone in mir/transform/add_validation

Remove a clone of `mir.local_decls`.
 2018-07-18 11:49:38 +00:00
csmoe
5b0cf56f32 ItemKind 2018-07-16 15:09:17 +02:00
csmoe
6a16b38198 ExprKind 2018-07-16 15:09:16 +02:00
ljedrz
d5219a7caa Remove a clone in mir/transform/add_validation. 2018-07-15 16:17:15 +02:00
Ralf Jung
f68323b28a fix typo 2018-07-11 12:00:05 +02:00
Ralf Jung
f511c5ea4a improve error message shown for unsafe operations: explain why undefined behavior could arise 
Inspired by @gnzlbg at https://github.com/rust-lang/rust/issues/46043#issuecomment-381544673
 2018-07-10 11:01:44 +02:00
Santiago Pastorino
25266c1840
Do not run AST borrowck when -Zborrowck=mir 2018-07-05 16:57:32 -03:00
Santiago Pastorino
0e31e2fa9b
Remove rustc_mir_borrowck attribute and use rustc_mir instead 2018-07-04 23:10:28 -03:00
Alexander Regueiro
13b82ecf80 Minor refactoring. 2018-06-30 23:53:52 +01:00
Alexander Regueiro
13931762e9 Loosened rules involving statics mentioning other statics. 
Updated tests accordingly.
 2018-06-30 23:52:33 +01:00
Oliver Schneider
4d473300a2 Turn the use of erroneous constants into errors again 2018-06-28 11:04:26 +02:00
Oliver Schneider
4eea1a4e5e Don't const propagate the body of constants 2018-06-28 11:04:25 +02:00
Oliver Schneider
4bb9648b27 Merge ConstVal and ConstValue 2018-06-28 11:04:25 +02:00
Oliver Schneider
05994779ea Move everything over from middle::const_val to mir::interpret 2018-06-28 11:02:31 +02:00
Oliver Schneider
6005b0ad2f Move the Lrc outside the error type and name the fields 2018-06-28 11:01:35 +02:00
Oliver Schneider
6f8fe4eaef Eliminate old CTFE's ErrKind 2018-06-28 11:01:35 +02:00
Without Boats
18ff7d091a Parse async fn header. 
This is gated on edition 2018 & the `async_await` feature gate.

The parser will accept `async fn` and `async unsafe fn` as fn
items. Along the same lines as `const fn`, only `async unsafe fn`
is permitted, not `unsafe async fn`.The parser will not accept
`async` functions as trait methods.

To do a little code clean up, four fields of the function type
struct have been merged into the new `FnHeader` struct: constness,
asyncness, unsafety, and ABI.

Also, a small bug in HIR printing is fixed: it previously printed
`const unsafe fn` as `unsafe const fn`, which is grammatically
incorrect.
 2018-06-21 22:29:47 -07:00
Felix S. Klock II
cac61267a7 Thread info about form of variable bindings, including spans of arg types, down into mir::LocalDecls. 
As a drive-by: the ref_for_guards created by `fn declare_binding`
should not have been tagged as user_variables in the first
place. These secret internal locals are *pointers* to user variables,
but themselves are not such (IMO. For now at least.)
 2018-06-19 19:38:37 +02:00
Eduard-Mihai Burtescu
5a5c7ded0d rustc: rename ty::maps to ty::query. 2018-06-14 18:05:12 +03:00
Oliver Schneider
8a74be6684 Add source information the const propagation of places 2018-06-05 20:49:47 +02:00
Oliver Schneider
5c0d1355f2 Refactor the const eval diagnostic API 2018-06-05 20:49:46 +02:00
Fabian Zaiser
589f9a87a8 Propagate uses of constants correctly so that array index checks work 2018-06-05 10:35:44 +02:00
bors
c610be92e2 Auto merge of #51307 - oli-obk:miri_fixes, r=eddyb 
ScalarPairs are offset==0 field + other non-zst field

r? @eddyb

fixes #51300
 2018-06-04 23:10:15 +00:00
Oliver Schneider
f7eedfab8e Simplify value field access 2018-06-04 14:50:29 +02:00
Oliver Schneider
9d613c27b7 Do not promote union field accesses 2018-06-03 19:06:31 +02:00
Oliver Schneider
47f37d67f1 Correctly access ScalarPair fields during const eval 2018-06-02 23:34:25 +02:00
Mark Simulacrum
5c374739b6 Specify that packed types must derive, not implement, Copy 2018-06-02 07:24:34 -06:00
Linus Färnstrand
376b6407a8 Make ctpop, cttz, ctlz and bswap const fns 2018-05-31 19:18:42 +02:00
Eduard-Mihai Burtescu
06d88cda08 rustc: rename mir::LocalDecl's syntactic_source_info to source_info. 2018-05-30 20:30:10 +03:00
Eduard-Mihai Burtescu
6c53972478 rustc: turn mir::LocalDecl's visibility_source_info into a SourceScope. 2018-05-30 20:30:10 +03:00
Eduard-Mihai Burtescu
3da186b67f rustc: use syntactic (instead of visibility) source info where appropriate. 2018-05-30 20:30:10 +03:00
Eduard-Mihai Burtescu
0895590c53 rustc: rename mir::LocalDecl's source_info to visibility_source_info. 2018-05-30 20:30:10 +03:00
Eduard-Mihai Burtescu
b10c157bd8 rustc: turn mir::LocalDecl's syntactic_scope into a SourceInfo. 2018-05-30 20:30:10 +03:00
Eduard-Mihai Burtescu
ca1ac6b6fb rustc: rename mir::SourceScopeInfo to mir::SourceScopeLocalData. 2018-05-30 20:30:09 +03:00
Eduard-Mihai Burtescu
85d44c4276 rustc: rename mir::VisibilityScope to mir::SourceScope. 2018-05-30 20:30:09 +03:00
Felix S. Klock II
24abe6f363 rust-lang/rust#27282: Add StatementKind::ReadForMatch to MIR. 
(This is just the data structure changes and some boilerplate match
code that followed from it; the actual emission of these statements
comes in a follow-up commit.)
 2018-05-29 23:01:36 +02:00
bors
990d8aa743 Auto merge of #50967 - oli-obk:miri_api_refactor, r=eddyb 
Miri api refactor

r? @eddyb

cc @Zoxc

based on https://github.com/rust-lang/rust/pull/50916
 2018-05-25 13:59:48 +00:00
Oliver Schneider
cc60a22b10 Get rid of scalar_size 2018-05-24 20:49:37 +02:00
Oliver Schneider
f82256e473 primval -> scalar rename 2018-05-24 20:49:37 +02:00
Oliver Schneider
64a75ecc80 change Value::Bytes to Value::Bits 2018-05-24 20:49:37 +02:00
Oliver Schneider
ef2177cffc Rename ByVal(Pair) to Scalar(Pair) 2018-05-24 20:47:35 +02:00
Oliver Schneider
1606e137e7 Rename PrimVal to Scalar 2018-05-24 20:47:35 +02:00
Oliver Schneider
a11f7856f4 Always mark unstable const fn as not const 2018-05-24 17:22:31 +02:00