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51 commits

Author SHA1 Message Date
Ralf Jung
7c720ce612 get rid of incorrect erase_for_fmt 2021-07-16 10:09:56 +02:00
Ralf Jung
f4b61ba509 adjustions and cleanup to make Miri build again 2021-07-15 17:14:11 +02:00
Ralf Jung
626605cea0 consistently treat None-tagged pointers as ints; get rid of some deprecated Scalar methods 2021-07-14 18:17:49 +02:00
Ralf Jung
d4f7dd6702 CTFE/Miri engine Pointer type overhaul: make Scalar-to-Pointer conversion infallible
This resolves all the problems we had around "normalizing" the representation of a Scalar in case it carries a Pointer value: we can just use Pointer if we want to have a value taht we are sure is already normalized.
2021-07-14 18:17:46 +02:00
Smittyvb
d83c46ffcc
add note about MAX_ALLOC_LIMIT
Co-authored-by: Ralf Jung <post@ralfj.de>
2021-07-03 11:15:14 -04:00
Smitty
e9d69d9f8e Allocation failure in constprop panics right away 2021-07-02 16:06:12 -04:00
Smitty
3e20129a18 Delay ICE on evaluation fail 2021-06-30 15:38:31 -04:00
Smitty
4c934df45f Properly evaluate non-consts in const prop 2021-06-30 12:38:12 -04:00
Smitty
9f227945f1 Simplify memory failure checking 2021-06-30 11:24:52 -04:00
Smitty
ba542eebc0 Rename is_spurious -> is_volatile 2021-06-30 09:27:30 -04:00
Smitty
d04da1125d Properly handle const prop failures 2021-06-29 20:22:32 -04:00
Smitty
b40f3c1060 Simplify const_prop logic 2021-06-29 19:08:29 -04:00
Smitty
524e575bb4 Support allocation failures when interperting MIR
Note that this breaks Miri.

Closes #79601
2021-06-29 19:08:26 -04:00
LingMan
382ba79380 Use map_or instead of open-coding it 2021-06-17 19:39:58 +02:00
LingMan
e42d5eed31 Stop returning a value from report_assert_as_lint
This function only ever returns `None`. Make that explicity by not returning a value at all.
2021-06-16 01:55:05 +02:00
hyd-dev
8ef3974007
Pass StackPopUnwind to eval_fn_call() and some other functions that are called by eval_fn_call() 2021-05-23 22:10:23 +08:00
Oli Scherer
a46bc5664a Tidy 2021-04-20 09:30:28 -04:00
Oli Scherer
e9696c8b62 Implement a lint that highlights all moves larger than 1000 bytes 2021-04-20 09:30:21 -04:00
lcnr
43ebac119b extract ConstKind::Unevaluated into a struct 2021-03-20 17:21:44 +01:00
Oli Scherer
c30c1be1e6 s/ConstantSource/ConstantKind/ 2021-03-15 12:06:52 +00:00
Oli Scherer
3127a9c60f Prepare mir::Constant for ty::Const only supporting valtrees 2021-03-12 12:43:54 +00:00
bors
27885a94c6 Auto merge of #82727 - oli-obk:shrinkmem, r=pnkfelix
Test the effect of shrinking the size of Rvalue by 16 bytes

r? `@ghost`
2021-03-08 08:39:24 +00:00
Santiago Pastorino
004465c620
Bump one missing mir_opt_level 2021-03-05 17:13:58 -03:00
Santiago Pastorino
782c7b04cf
Bump all mir_opt_level 2 to 3 2021-03-05 17:13:57 -03:00
Santiago Pastorino
f3b8920d4b
Bump all mir_opt_level 3 to 4 2021-03-05 17:13:56 -03:00
Santiago Pastorino
8152da22a1
Extract mir_opt_level to a method and use Option to be able to know if the value is provided or not 2021-03-05 17:13:56 -03:00
Oli Scherer
9a2362e5a9 Shrink the size of Rvalue by 16 bytes 2021-03-05 09:33:01 +00:00
Dániel Buga
b97eb23cd0 Box generator-related Body fields 2021-03-01 08:32:49 +01:00
Ralf Jung
d496bfc161 all InterpError allocate now, so adjust alloc-error-check 2021-02-20 19:01:25 +01:00
bors
e7c23ab933 Auto merge of #82124 - tmiasko:op-ty-ref, r=oli-obk
Pass large interpreter types by reference, not value

r? `@ghost`
2021-02-20 10:20:42 +00:00
Tomasz Miąsko
e190f0d974 Reduce size of InterpErrorInfo to 8 bytes 2021-02-17 08:57:06 +01:00
Tomasz Miąsko
f2da425bff ./x.py fmt 2021-02-16 23:52:05 +01:00
Tomasz Miąsko
fe0c46d07e Pass PlaceTy by reference not value 2021-02-16 23:52:05 +01:00
Tomasz Miąsko
e915cf45dc Pass OpTy by reference not value 2021-02-16 23:52:05 +01:00
oli
0491e74dd9 Make sure that const prop does not produce unsilenceable lints after inlining 2021-01-23 16:51:23 +00:00
Dániel Buga
428f948096 Copy body span instead of querying it 2021-01-17 14:50:47 +01:00
bors
704e47f78b Auto merge of #78407 - oli-obk:ub_checkable_ctfe, r=RalfJung,pnkfelix
Make CTFE able to check for UB...

... by not doing any optimizations on the `const fn` MIR used in CTFE. This means we duplicate all `const fn`'s MIR now, once for CTFE, once for runtime. This PR is for checking the perf effect, so we have some data when talking about https://github.com/rust-lang/const-eval/blob/master/rfcs/0000-const-ub.md

To do this, we now have two queries for obtaining mir: `optimized_mir` and `mir_for_ctfe`. It is now illegal to invoke `optimized_mir` to obtain the MIR of a const/static item's initializer, an array length, an inline const expression or an enum discriminant initializer. For `const fn`, both `optimized_mir` and `mir_for_ctfe` work, the former returning the MIR that LLVM should use if the function is called at runtime. Similarly it is illegal to invoke `mir_for_ctfe` on regular functions.

This is all checked via appropriate assertions and I don't think it is easy to get wrong, as there should be no `mir_for_ctfe` calls outside the const evaluator or metadata encoding. Almost all rustc devs should keep using `optimized_mir` (or `instance_mir` for that matter).
2021-01-12 17:26:56 +00:00
Nym Seddon
06fd212d6a
Add ABI argument to find_mir_or_eval_fn
Add ABI argument for called function in `find_mir_or_eval_fn` and
`call_extra_fn`. Useful for comparing with expected ABI in interpreters.

Related to [miri/1631](https://github.com/rust-lang/miri/issues/1631)
2021-01-10 15:12:50 +00:00
oli
caeb3d525d Move MIR body loading to a machine function 2021-01-04 21:40:38 +00:00
Vishnunarayan K I
ff0ebd27a4 move interpret::MemoryKind::Heap to const eval 2020-12-03 21:42:11 +05:30
cjkenn
51c2218d1f move fuel checks to later points in instcombine and const_prop, add opt level flag to test 2020-11-18 08:49:46 -05:00
cjkenn
78a37f888a add optimization fuel checks to some mir passes 2020-11-16 18:09:10 -05:00
oli
abacaf2aef u128 truncation and sign extension are not just interpreter related 2020-11-04 13:41:58 +00:00
Oliver Scherer
362123dd75 Split the "raw integer bytes" part out of Scalar 2020-11-04 09:58:59 +00:00
Dylan DPC
54ea0f9ccd
Rollup merge of #78351 - RalfJung:validity-unsafe-cell, r=oli-obk
Move "mutable thing in const" check from interning to validity

This moves the check for mutable things (such as `UnsafeCell` or `&mut`) in a`const` from interning to validity. That means we can give more targeted error messages (pointing out *where* the problem lies), and we can simplify interning a bit.

Also fix the interning mode used for promoteds in statics.

r? @oli-obk
2020-10-28 01:21:18 +01:00
Ralf Jung
0e014be359 move UnsafeCell-in-const check from interning to validation 2020-10-26 08:56:54 +01:00
Eduard-Mihai Burtescu
6bc5eafbce rustc_mir: track inlined callees in SourceScopeData. 2020-10-21 04:43:56 +03:00
Dylan MacKenzie
6f61e71648 Remember the MirSource for each Body 2020-10-04 11:01:38 -07:00
Dániel Buga
90c7731f6c Enable const prop into operands at mir_opt_level=2 2020-09-23 19:03:10 +02:00
LeSeulArtichaut
3e14b684dd Change ty.kind to a method 2020-09-04 17:47:51 +02:00