bjoernager/rust
bjoernager/rust
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44 commits

Author SHA1 Message Date
Camille GILLOT
4462bb54e3 Introduce a no-op PlaceMention statement for let _ =. 2023-03-09 17:45:13 +00:00
Camille GILLOT
085eaa7ee3 Adapt interpreter. 2023-02-18 21:35:02 +00:00
Oli Scherer
38b7cdf393 Use target instead of machine for mir interpreter integer handling. 
The naming of `machine` only makes sense from a mir interpreter internals perspective, but outside users talk about the `target` platform
 2023-02-15 08:56:18 +00:00
Camille GILLOT
473d0c5510 Introduce write_aggregate. 2023-02-02 23:26:34 +00:00
Camille GILLOT
feccf469fb Interpret aggregates. 2023-02-02 23:09:51 +00:00
Bryan Garza
172662dede Add back Machine::before_terminator(...) method 
Added it back because it's used by Miri, but in the compiler itself, it
will not do anything (just return `Ok(())`.
 2023-01-23 23:56:22 +00:00
Bryan Garza
eea42733ac Replace terminator-based const eval limit 
- Remove logic that limits const eval based on terminators, and use the
  stable metric instead (back edges + fn calls)
- Add unstable flag `tiny-const-eval-limit` to add UI tests that do not
  have to go up to the regular 2M step limit
 2023-01-23 23:56:22 +00:00
Bryan Garza
b763f9094f Remove debugging-related code 2023-01-23 23:56:22 +00:00
Bryan Garza
360db516cc Create stable metric to measure long computation in Const Eval 
This patch adds a `MirPass` that tracks the number of back-edges and
function calls in the CFG, adds a new MIR instruction to increment a
counter every time they are encountered during Const Eval, and emit a
warning if a configured limit is breached.
 2023-01-23 23:56:22 +00:00
Maybe Waffle
c21b1f742e Self review suggestions 
- add back accidentally removed new lines
- try to deref in patterns, rather than in expressions
  (maybe this was the reason of perf regression?...)
 2023-01-17 07:48:20 +00:00
Maybe Waffle
3dca58e249 rustc_const_eval: remove ref patterns (+some pattern matching imps) 2023-01-17 07:48:19 +00:00
Ralf Jung
9397ea1368 make retagging work even with 'unstable' places 2022-12-06 10:33:34 +01:00
Ralf Jung
60d5d65a4d interpret: get rid of run() function 2022-11-27 15:20:26 +01:00
Ralf Jung
4101889786 interpret: use Either over Result when it is not representing an error condition 2022-11-18 10:18:32 +01:00
Ralf Jung
c78021709a add is_sized method on Abi and Layout, and use it 2022-11-13 12:23:53 +01:00
Oli Scherer
104f97e5aa Move CTFE handling of nondiverging intrinsics to intrinsics.rs 2022-09-06 14:18:32 +00:00
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
Ralf Jung
d814d10069 interpret: use new OpTy::len for Len rvalue 
This avoids a `force_allocation`
 2022-08-31 15:22:44 +02:00
Tomasz Miąsko
b48870b451 Replace Body::basic_blocks() with field access 2022-08-26 14:27:08 +02:00
ouz-a
cb0017f2f8 add new rval, pull deref early 2022-07-12 14:26:41 +03:00
Ralf Jung
e685530b07 deduplicate some copy_op code 2022-07-06 14:11:41 -04:00
Ralf Jung
6f01ff61b3 interpret: fix CheckedBinOp behavior when overflow checking is disabled 2022-07-04 23:29:41 -04:00
Ralf Jung
467e0f4446 use precise spans for recursive const evaluation 2022-06-04 16:18:03 -04:00
Ralf Jung
7892e1cedb Move statement_index increment out of statement() function 
That function is called by const_prop, where updating the index like that is totally meaningless.
 2022-06-04 15:59:24 -04:00
Ralf Jung
7676f07d0e take back half-baked noaliasing check in Assignment 2022-06-02 15:14:35 -04:00
Oli Scherer
48029aba2c Remove some now-dead code that was only relevant before deaggregation. 
The code was broken anyway, if the deaggregator is disabled, it would have ICE on any non-enum Adt
 2022-04-14 13:31:21 +00:00
Jakob Degen
9b6b1a625b Add new Deinit statement kind 2022-04-11 08:55:03 -04:00
Ralf Jung
f0ec783bf9 interpret: remove MemoryExtra in favor of giving access to the Machine 2022-04-03 15:28:34 -04:00
Yuri Astrakhan
7e8201ae0a Spellchecking some comments 
This PR attempts to clean up some minor spelling mistakes in comments
 2022-03-30 01:39:38 -04:00
est31
5cc292eb1d rustc_const_eval: adopt let else in more places 2022-02-19 01:55:47 +01:00
Tomasz Miąsko
000b36c505 Remove deprecated LLVM-style inline assembly 2022-01-12 18:51:31 +01:00
Matthias Krüger
57a4f4a634
Rollup merge of #90102 - nbdd0121:box3, r=jonas-schievink 
Remove `NullOp::Box`

Follow up of #89030 and MCP rust-lang/compiler-team#460.

~1 month later nothing seems to be broken, apart from a small regression that #89332 (1aac85bb716c09304b313d69d30d74fe7e8e1a8e) shows could be regained by remvoing the diverging path, so it shall be safe to continue and remove `NullOp::Box` completely.

r? `@jonas-schievink`
`@rustbot` label T-compiler
 2022-01-03 14:44:15 +01:00
Aaron Hill
cac431ba75
Store a DefId instead of an AdtDef in AggregateKind::Adt 
The `AggregateKind` enum ends up in the final mir `Body`. Currently,
any changes to `AdtDef` (regardless of how significant they are)
will legitimately cause the overall result of `optimized_mir` to change,
invalidating any codegen re-use involving that mir.

This will get worse once we start hashing the `Span` inside `FieldDef`
(which is itself contained in `AdtDef`).

To try to reduce these kinds of invalidations, this commit changes
`AggregateKind::Adt` to store just the `DefId`, instead of the full
`AdtDef`. This allows the result of `optimized_mir` to be unchanged
if the `AdtDef` changes in a way that doesn't actually affect any
of the MIR we build.
 2021-12-22 14:36:34 -05:00
b-naber
61cab770bd allow for failure of subst_normalize_erasing_regions in const_eval 2021-12-05 12:43:39 +01:00
Ralf Jung
f8e3b31858 Miri: fix alignment check in array initialization 2021-11-27 18:18:48 -05:00
Ralf Jung
70d418c315 Revert "require full validity when determining the discriminant of a value" 
This reverts commit 0a2b7d71d9, reversing
changes made to 47c1bd1bcc.
This caused several unforeseen problems:
- https://github.com/rust-lang/rust/issues/91029
- https://github.com/rust-lang/rust/pull/89764#issuecomment-973588007
 2021-11-20 12:33:04 -05:00
Ralf Jung
498ebc46ba require full validity when determining the discriminant of a value 2021-11-14 13:08:51 -05:00
Gary Guo
1b7f5a3818 Remove NullOp::Box 2021-10-20 19:42:35 +01:00
Ralf Jung
268bb46db2 CTFE: extra assertions for Aggregate rvalues; remove unnecessarily eager special case 2021-09-29 13:47:41 -04:00
Ralf Jung
35f74c24a3 remove outdated comment 2021-09-29 13:43:22 -04:00
Gary Guo
c38da2e0a3 Introduce Rvalue::ShallowInitBox 2021-09-25 01:08:41 +01:00
Gary Guo
1c3409f333 Introduce NullOp::AlignOf 2021-09-13 00:08:35 +01:00
Camille GILLOT
c5fc2609f0 Rename rustc_mir to rustc_const_eval. 2021-09-07 20:46:26 +02:00
Renamed from compiler/rustc_mir/src/interpret/step.rs (Browse further)