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721 Commits

Author SHA1 Message Date
Ralf Jung
430c386821 make it more clear which functions create fresh AllocId 2023-09-14 07:27:31 +02:00
Ralf Jung
0f8908da27 cleanup op_to_const a bit; rename ConstValue::ByRef → Indirect 2023-09-14 07:27:30 +02:00
Ralf Jung
551f481ffb use AllocId instead of Allocation in ConstValue::ByRef 2023-09-14 07:26:24 +02:00
bors
eb2446a57e Auto merge of #115820 - matthiaskrgr:rollup-kyglvpu, r=matthiaskrgr 
Rollup of 6 pull requests

Successful merges:

 - #115736 (Remove `verbose_generic_activity_with_arg`)
 - #115771 (cleanup leftovers of const_err lint)
 - #115798 (add helper method for finding the one non-1-ZST field)
 - #115812 (Merge settings.css into rustdoc.css)
 - #115815 (fix: return early when has tainted in mir pass)
 - #115816 (Disabled socketpair for Vita)

r? `@ghost`
`@rustbot` modify labels: rollup
 2023-09-13 18:19:15 +00:00
Camille GILLOT
054ed8e7eb Introduce Machine::POST_MONO_CHECKS. 2023-09-12 20:17:52 +00:00
Ralf Jung
60091fe924 add helper method for finding the one non-1-ZST field 2023-09-12 20:52:05 +02:00
bors
cc7a9d6972 Auto merge of #115705 - cjgillot:const-prop-aggregate, r=oli-obk 
Read from non-scalar constants and statics in dataflow const-prop

DataflowConstProp is designed to handle scalar values. When MIR features an assignment from a non-scalar constant, we need to manually decompose it into the custom state space.

This PR tweaks interpreter callbacks to allow reusing `eval_mir_constant` without having a stack frame to get a span from.

r? `@oli-obk`
cc `@jachris`
 2023-09-12 09:02:27 +00:00
Camille GILLOT
6984030f80 Use write_immediate. 2023-09-11 16:29:42 +00:00
Camille GILLOT
bcfe1a4bf2 Remove cur_span hook. 2023-09-11 16:29:42 +00:00
Camille GILLOT
4901893721 Inline callback. 2023-09-11 16:29:41 +00:00
Camille GILLOT
d278ce126c Return ImmTy in discriminant_for_variant. 2023-09-11 16:29:41 +00:00
Camille GILLOT
6ad6b4381c Support non-scalar constants. 2023-09-11 16:29:41 +00:00
Ralf Jung
e00120906e handle/hack for arbitrary-self dyn receivers 2023-09-09 15:38:23 +02:00
Ralf Jung
a38a3bfc6d implement and test ABI compatibility for transparent wrappers around NPO types 2023-09-09 15:36:44 +02:00
Ralf Jung
b5bab2b1cc implement and test fn ptr ABI compatibility rules 2023-09-09 15:36:44 +02:00
Ralf Jung
f993ddc079 give extra context to ABI mismatch errors 2023-09-09 15:36:44 +02:00
Ralf Jung
897a65804d interpret: change ABI-compat test to be type-based, so the test is consistent across targets 2023-09-09 15:36:44 +02:00
bors
cd71a37f32 Auto merge of #115372 - RalfJung:abi-assert-eq, r=davidtwco 
add rustc_abi(assert_eq) to test some guaranteed or at least highly expected ABI compatibility guarantees

This new repr(transparent) test is super useful, it would have found https://github.com/rust-lang/rust/issues/115336 and found https://github.com/rust-lang/rust/issues/115404, https://github.com/rust-lang/rust/issues/115481, https://github.com/rust-lang/rust/issues/115509.
 2023-09-08 11:56:08 +00:00
Ralf Jung
b0cf4c28ea turns out Layout has some more things to worry about -- move ABI comparison into helper function 
like is_bool, and some special magic extra fields
 2023-09-08 09:14:07 +02:00
Ralf Jung
c3e14edd8b accept some differences for rustc_abi(assert_eq), so that we can test more things to be compatible 2023-09-08 08:59:55 +02:00
Ralf Jung
73d8dcb803 miri: catch function calls where the argument is caller-invalid / the return value callee-invalid 2023-09-06 16:36:00 +02:00
Ralf Jung
fa5f13775a interpret: make MemPlace, Place, Operand types private to the interpreter 2023-09-04 17:53:38 +02:00
Ralf Jung
efc759238d miri ABI check: fix handling of 1-ZST; don't accept sign differences 2023-08-31 17:27:23 +02:00
Ralf Jung
c37bd09d88 miri function ABI check: specifically look for repr(transparent) 2023-08-30 17:07:25 +02:00
Ralf Jung
1e95aa0c49 interpret: make sure we accept transparent newtypes as ABI-compatible 
also we were missing the case for Vector arguments, so handle those as well
 2023-08-30 17:04:54 +02:00
Ralf Jung
6d1ce9bd13 storage_live: avoid computing the layout unless necessary 2023-08-30 13:46:55 +02:00
Ralf Jung
f87e91de7d unify passing of sized and unsized function arguments :-) 2023-08-30 13:46:55 +02:00
Ralf Jung
7cdeff266c a bit of meta-related cleanup on Projectable 2023-08-30 13:46:55 +02:00
Ralf Jung
a09df43d9f move marking-locals-live out of push_stack_frame, so it happens with argument passing 
this entirely avoids even creating unsized locals in Immediate::Uninitialized state
 2023-08-30 13:46:54 +02:00
Ralf Jung
bdd5855b8e interpret: fix projecting into an unsized field of a local 
new invariant: Place::Local never refers to something unsized
 2023-08-30 13:43:34 +02:00
Matthias Krüger
23f86255ef
Rollup merge of #115272 - RalfJung:miri-error-print, r=saethlin 
miri/diagnostics: don't forget to print_backtrace when ICEing on unexpected errors

This should fix the missing output encountered [here](https://github.com/rust-lang/rust/issues/115145#issuecomment-1694334410).

r? `@saethlin`
 2023-08-30 07:18:11 +02:00
Ralf Jung
b2ebf1c23f const_eval and codegen: audit uses of is_zst 2023-08-29 09:03:46 +02:00
bors
191dc54dbf Auto merge of #115182 - RalfJung:abi-compat-sign, r=b-naber 
miri ABI compatibility check: accept u32 and i32

If only the sign differs, then surely these types are compatible. (We do still check that `arg_ext` is the same, just in case.)

Also I made it so that the ABI check must *imply* that size and alignment are the same, but it doesn't actively check that itself. With how crazy ABI constraints get, having equal size and align really shouldn't be used as a signal for anything I think...
 2023-08-28 22:56:10 +00:00
Ralf Jung
beeb2b13cc miri/diagnostics: don't forget to print_backtrace when ICEing on unexpected errors 
then also use the new helper in a few other places
 2023-08-27 15:42:25 +02:00
bors
296c7a683c Auto merge of #115184 - saethlin:local-allocated-spans, r=RalfJung 
Record allocation spans inside force_allocation

This expands https://github.com/rust-lang/miri/pull/2940 to cover locals

r? `@RalfJung`
 2023-08-25 17:03:33 +00:00
Ben Kimock
8ecdefb3db
Add a doc comment for the new hook 
Co-authored-by: Ralf Jung <post@ralfj.de>
 2023-08-25 11:58:31 -04:00
Ben Kimock
ec21d584ee Record allocation spans inside force_allocation 2023-08-25 11:16:52 -04:00
Ralf Jung
5194060ded miri ABI compatibility check: accept u32 and i32 2023-08-24 21:02:21 +02:00
Ralf Jung
4c53783f3c when terminating during unwinding, show the reason why 2023-08-24 13:28:26 +02:00
Ralf Jung
ac3bca24b7 interpret: have assert_* intrinsics call the panic machinery instead of a direct abort 2023-08-20 15:52:40 +02:00
Ralf Jung
788fd44a3b interpret/miri: call panic_cannot_unwind lang item instead of hard-coding the same message 2023-08-20 15:52:40 +02:00
Ralf Jung
818ec8e23a give some unwind-related terminators a more clear name 2023-08-20 15:52:38 +02:00
Matthias Krüger
5c5ae6c5f3
Rollup merge of #114615 - RalfJung:interpret-invalid-where, r=lcnr 
interpret: remove incomplete protection against invalid where clauses

Cc https://github.com/rust-lang/rust/issues/97477, https://github.com/rust-lang/project-const-generics/issues/37

r? ``@lcnr``
 2023-08-08 21:44:45 +02:00
Ralf Jung
a7132bf387 interpret: remove incomplete protection against invalid where clauses 2023-08-08 10:35:22 +02:00
bors
6d55184d05 Auto merge of #114520 - RalfJung:unsized-valtrees, r=oli-obk 
simplify handling of valtrees for unsized types
 2023-08-08 07:48:01 +00:00
Matthias Krüger
cbe2522652
Rollup merge of #114382 - scottmcm:compare-bytes-intrinsic, r=cjgillot 
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly

As discussed in #113435, this lets the backends be the place that can have the "don't call the function if n == 0" logic, if it's needed for the target.  (I didn't actually *add* those checks, though, since as I understood it we didn't actually need them on known targets?)

Doing this also let me make it `const` (unstable), which I don't think `extern "C" fn memcmp` can be.

cc `@RalfJung` `@Amanieu`
 2023-08-07 05:29:12 +02:00
Scott McMurray
502af03445 Add a new compare_bytes intrinsic instead of calling memcmp directly 2023-08-06 15:47:40 -07:00
Matthias Krüger
74dce18639
Rollup merge of #114542 - RalfJung:const-prop-nonsense, r=compiler-errors 
interpret: use ConstPropNonsense for more const-prop induced issues
 2023-08-07 00:06:06 +02:00
Ralf Jung
997ec63fb1 simplify handling of valtrees for unsized types 2023-08-06 21:25:49 +02:00
Matthias Krüger
13de583583
Rollup merge of #114505 - ouz-a:cleanup_mir, r=RalfJung 
Add documentation to has_deref

Documentation of `has_deref` needed some polish to be more clear about where it should be used and what's it's purpose.

cc https://github.com/rust-lang/rust/issues/114401

r? `@RalfJung`
 2023-08-06 17:26:29 +02:00