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235 Commits

Author SHA1 Message Date
Jannis Christopher Köhl
ad99d2e15d Move handling of references and simplify flooding 2022-11-07 10:35:11 +01:00
Jannis Christopher Köhl
3f98dc7838 Clarify place expressions vs place objects 2022-11-07 10:35:11 +01:00
Jannis Christopher Köhl
e75ad93d95 Begin a semi-formal argument for correctness 2022-11-07 10:35:10 +01:00
Jannis Christopher Köhl
292869493c Add additional flooding when assigning a value and corresponding test 2022-11-07 10:35:10 +01:00
Jannis Christopher Köhl
bb1639769e Clarify registration and tracking of references 2022-11-07 10:35:10 +01:00
Jannis Christopher Köhl
56ff16d19f Fix spelling 2022-11-07 10:35:09 +01:00
Jannis Christopher Köhl
d0afe6833d Try field type normalization instead of forcing it 2022-11-07 10:35:08 +01:00
Jannis Christopher Köhl
4f9c30fb67 Add initial version of value analysis and dataflow constant propagation 2022-11-07 10:35:08 +01:00
Oli Scherer
44d1936d00 Some tracing and comment cleanups 2022-11-04 17:10:07 +00:00
Nilstrieb
c65ebae221
Migrate all diagnostics 2022-10-23 10:09:44 +02:00
ouz-a
d59c7ff000 Remove mir::CastKind::Misc 2022-10-06 15:32:41 +03:00
Pietro Albini
3975d55d98
remove cfg(bootstrap) 2022-09-26 10:14:45 +02:00
Jhonny Bill Mena
a3396b2070 UPDATE - rename DiagnosticHandler macro to Diagnostic 2022-09-21 11:39:53 -04:00
Jhonny Bill Mena
19b348fed4 UPDATE - rename DiagnosticHandler trait to IntoDiagnostic 2022-09-21 11:39:52 -04:00
bors
4136b59b7d Auto merge of #99806 - oli-obk:unconstrained_opaque_type, r=estebank 
Allow patterns to constrain the hidden type of opaque types

fixes #96572

reverts a revert as original PR was a perf regression that was fixed by reverting it: https://github.com/rust-lang/rust/pull/99368#issuecomment-1186587864)

TODO:

* check if https://github.com/rust-lang/rust/issues/99685 is avoided
 2022-09-20 12:09:52 +00:00
Oli Scherer
dab1074b91 Only generate OpaqueCast for opaque types 2022-09-16 11:37:50 +00:00
Oli Scherer
40e2de8c41 Revert "Revert "Rollup merge of #98582 - oli-obk:unconstrained_opaque_type, r=estebank"" 
This reverts commit 4a742a691e7dd2522bad68b86fe2fd5a199d5561.
 2022-09-16 11:36:39 +00:00
est31
173eb6f407 Only enable the let_else feature on bootstrap 
On later stages, the feature is already stable.

Result of running:

rg -l "feature.let_else" compiler/ src/librustdoc/ library/ | xargs sed -s -i "s#\\[feature.let_else#\\[cfg_attr\\(bootstrap, feature\\(let_else\\)#"
 2022-09-15 21:06:45 +02:00
Oli Scherer
b7413511dc Generalize the Assume intrinsic statement to a general Intrinsic statement 2022-09-06 14:18:32 +00:00
Oli Scherer
3f07645120 Lower the assume intrinsic to a MIR statement 2022-09-06 14:18:32 +00:00
Matthias Krüger
d182081de1
Rollup merge of #99027 - tmiasko:basic-blocks, r=oli-obk 
Replace `Body::basic_blocks()` with field access

Since the refactoring in #98930, it is possible to borrow the basic blocks
independently from other parts of MIR by accessing the `basic_blocks` field
directly.

Replace unnecessary `Body::basic_blocks()` method with a direct field access,
which has an additional benefit of borrowing the basic blocks only.
 2022-08-29 06:34:43 +02:00
Michael Goulet
93b2acd88a
Rollup merge of #100744 - 5225225:migrate-rustc-mir-dataflow, r=davidtwco 
Migrate rustc_mir_dataflow to diagnostic structs
 2022-08-26 15:56:24 -07:00
Tomasz Miąsko
b48870b451 Replace Body::basic_blocks() with field access 2022-08-26 14:27:08 +02:00
Tomasz Miąsko
58eabb291d Add method that applies DefUse effect 2022-08-25 10:38:00 +02:00
Tomasz Miąsko
31d892a942 Fix liveness analysis for yield terminators 
A resume place is evaluated and assigned to only after a yield
terminator resumes. Ensure that locals used when evaluating the
resume place are live across the yield.
 2022-08-25 07:12:16 +02:00
5225225
f20cc9ae4e Rename rustc_mir_dataflow diagnostic to mir_dataflow 2022-08-23 13:48:15 +01:00
5225225
ee2b16100e Migrate rustc_mir_dataflow to diagnostic structs 2022-08-23 11:24:51 +01:00
SparrowLii
d39fefdd69 use type alias impl trait in outlives_bounds::InferCtxtExt 2022-08-22 18:10:28 +08:00
Tomasz Miąsko
099a32bbe4 Remove redundant TransferWrapper struct 2022-08-01 17:08:19 +02:00
bors
7dfdd64433 Auto merge of #99667 - ouz-a:some_branch, r=oli-obk 
Optimize `UnDerefer`

Addresses the performance [issues](https://github.com/rust-lang/rust/pull/98145#issuecomment-1183548597) faced here.

r? `@oli-obk`
 2022-07-29 07:11:50 +00:00
ouz-a
bd24b4006c type alias covers whole return 2022-07-28 13:52:49 +03:00
ouz-a
bd52f58e3b create type alias 2022-07-28 12:56:57 +03:00
ouz-a
a5c895e1d8 remove clone 2022-07-25 17:08:54 +03:00
ouz-a
4e726e04cd fix import error 2022-07-24 14:57:49 +03:00
ouz-a
09134982e5 optimize un_derefer 2022-07-24 14:40:43 +03:00
bors
be9cfb307e Auto merge of #99058 - michaelwoerister:remove-stable-set-and-map, r=nagisa 
Remove the unused StableSet and StableMap types from rustc_data_structures.

The current implementation is not "stable" in the same sense that `HashStable` and `StableHasher` are stable, i.e. across compilation sessions. So, in my opinion, it's better to remove those types (which are basically unused anyway) than to give the wrong impression that these are safe for incr. comp.

I plan to provide new "stable" collection types soon that can be used to replace `FxHashMap` and `FxHashSet` in query results (see [draft](69d03ac7a7)). It's unsound that `HashMap` and `HashSet` implement `HashStable` (see https://github.com/rust-lang/rust/issues/98890 for a recent P-critical bug caused by this) -- so we should make some progress there.
 2022-07-20 22:19:30 +00:00
Michael Woerister
88f6c6d8a0 Remove unused StableMap and StableSet types from rustc_data_structures 2022-07-20 13:11:39 +02:00
Oli Scherer
4a742a691e Revert "Rollup merge of #98582 - oli-obk:unconstrained_opaque_type, r=estebank" 
This reverts commit 6f8fb911ad504b77549cf3256a09465621beab9d, reversing
changes made to 7210e46dc69a4b197a313d093fe145722c248b7d.
 2022-07-20 07:55:58 +00:00
Matthias Krüger
6f8fb911ad
Rollup merge of #98582 - oli-obk:unconstrained_opaque_type, r=estebank 
Allow destructuring opaque types in their defining scopes

fixes #96572

Before this PR, the following code snippet failed with an incomprehensible error, and similar code just ICEd in mir borrowck.

```rust
    type T = impl Copy;
    let foo: T = (1u32, 2u32);
    let (a, b) = foo;
```

The problem was that the last line created MIR projections of the form `foo.0` and `foo.1`, but `foo`'s type is `T`, which doesn't have fields (only its hidden type does). But the pattern supplies enough type information (a tuple of two different inference types) to bind a hidden type.
 2022-07-16 22:30:47 +02:00
Oli Scherer
84a444a1f4 Introduce opaque type to hidden type projection 2022-07-15 15:49:22 +00:00
pierwill
0d45977aa5 Remove FIXME from MIR always_storage_live_locals 2022-07-14 15:30:36 -05:00
Joshua Nelson
3c9765cff1 Rename debugging_opts to unstable_opts 
This is no longer used only for debugging options (e.g. `-Zoutput-width`, `-Zallow-features`).
Rename it to be more clear.
 2022-07-13 17:47:06 -05:00
ouz-a
cb0017f2f8 add new rval, pull deref early 2022-07-12 14:26:41 +03:00
Matthias Krüger
416dc43124
Rollup merge of #99022 - pierwill:always-storage-live-locals, r=pierwill 
MIR dataflow: Rename function to `always_storage_live_locals`

Related to #99021.

r?  ```@JakobDegen``` (as discussed on Zulip)
 2022-07-09 12:52:50 +02:00
pierwill
8a1c1ec8b2 MIR dataflow: Rename function to always_storage_live_locals 
Related to #99021.
 2022-07-07 13:49:40 -05:00
Matthias Krüger
b4f8537a56
Rollup merge of #98986 - pierwill:patch-5, r=oli-obk 
Fix missing word in comment
 2022-07-07 20:33:27 +02:00
Dylan DPC
6910d84bc4
Rollup merge of #98981 - pierwill:pierwill/dataflow-docs-edits, r=Dylan-DPC 
Edit `rustc_mir_dataflow::framework` documentation

Some edits for clarity and consistency.
 2022-07-07 18:06:55 +05:30
Tomasz Miąsko
dfa6a7cbde Move switch_sources from Body to BasicBlocks 2022-07-07 08:11:49 +02:00
Tomasz Miąsko
39d9c1cb1f Move predecessors from Body to BasicBlocks 2022-07-07 08:11:49 +02:00
Tomasz Miąsko
2446b17745 Move is_cfg_cyclic from Body to BasicBlocks 2022-07-07 08:11:49 +02:00