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65 Commits

Author SHA1 Message Date
Waffle Lapkin
cf7b67420b add project_fields helper function 2025-08-04 11:34:46 +02:00
Oli Scherer
486ffda9dc Add opaque TypeId handles for CTFE 2025-07-09 16:37:11 +00:00
Matthias Krüger
2d59c4e0fe Rollup merge of #143046 - RalfJung:zst-unsafe-cell, r=lcnr,oli-obk 
const validation: properly ignore zero-sized UnsafeCell

Fixes https://github.com/rust-lang/rust/issues/142948
r? `@oli-obk`
 2025-06-27 22:13:05 +02:00
Stypox
708dc15cf1 Add InterpCx::layout_of with tracing, shadowing LayoutOf 2025-06-27 11:49:22 +02:00
Ralf Jung
7de39f55dd make size_and_align_of_mplace work on all projectable 2025-06-26 10:28:15 +02:00
Scott McMurray
8bce2255e8 Update InterpCx::project_field to take FieldIdx 
As suggested by Ralf in 142005.
 2025-06-05 19:15:56 -07:00
Michael Goulet
fc1a9186dc Implement MIR, CTFE, and codegen for unsafe binders 2025-01-31 17:19:53 +00:00
Josh Triplett
a105cd6066 Use field init shorthand where possible 
Field init shorthand allows writing initializers like `tcx: tcx` as
`tcx`. The compiler already uses it extensively. Fix the last few places
where it isn't yet used.
 2024-12-17 14:33:10 -08:00
Jubilee Young
bbd18e29da compiler: Directly use rustc_abi in const_eval 2024-11-03 13:38:47 -08:00
Ralf Jung
a8f9a32650 interpret: Immediate::offset: use shared sanity-check function to ensure invariant 2024-10-03 08:26:25 +02:00
Ralf Jung
c4ce8c114b make InterpResult a dedicated type to avoid accidentally discarding the error 2024-10-01 21:45:35 +02:00
Michael Goulet
c682aa162b Reformat using the new identifier sorting from rustfmt 2024-09-22 19:11:29 -04:00
Matthias Krüger
96195a5e24 Rollup merge of #130342 - RalfJung:slice-idx-overflow, r=saethlin 
interpret, miri: fix dealing with overflow during slice indexing and allocation

This is mostly to fix https://github.com/rust-lang/rust/issues/130284.

I then realized we're using somewhat sketchy arguments for a similar multiplication in `copy`/`copy_nonoverlapping`/`write_bytes`,  so I made them all share the same function that checks exactly the right thing. (The intrinsics would previously fail on allocations larger than `1 << 47` bytes... which are theoretically possible maybe? Anyway it seems conceptually wrong to use any other bound than `isize::MAX` here.)
 2024-09-15 16:01:38 +02:00
León Orell Valerian Liehr
03e8b6bbfa Rollup merge of #130294 - nnethercote:more-lifetimes, r=lcnr 
Lifetime cleanups

The last commit is very opinionated, let's see how we go.

r? `@oli-obk`
 2024-09-14 18:12:13 +02:00
Ralf Jung
3b806d337c interpret: fix dealing with overflow during slice indexing 2024-09-14 10:00:07 +02:00
Ralf Jung
e2bc16c101 interpret: simplify SIMD type handling 2024-09-13 15:26:08 +02:00
Nicholas Nethercote
8d32578fe1 Rename and reorder lots of lifetimes. 
- Replace non-standard names like 's, 'p, 'rg, 'ck, 'parent, 'this, and
  'me with vanilla 'a. These are cases where the original name isn't
  really any more informative than 'a.
- Replace names like 'cx, 'mir, and 'body with vanilla 'a when the lifetime
  applies to multiple fields and so the original lifetime name isn't
  really accurate.
- Put 'tcx last in lifetime lists, and 'a before 'b.
 2024-09-13 15:46:20 +10:00
Nicholas Nethercote
84ac80f192 Reformat use declarations. 
The previous commit updated `rustfmt.toml` appropriately. This commit is
the outcome of running `x fmt --all` with the new formatting options.
 2024-07-29 08:26:52 +10:00
Ralf Jung
763e3131cc don't ICE when encountering an extern type field during validation 2024-06-22 17:39:01 +02:00
Ralf Jung
4c208ac233 use is_none_or in some places in the compiler 2024-06-12 16:20:07 +02:00
Ralf Jung
d5fb8257e7 interpret: do not ICE on padded non-pow2 SIMD vectors 2024-06-09 11:54:23 +02:00
Ralf Jung
e8379c9598 interpret: get rid of 'mir lifetime everywhere 2024-05-27 08:25:57 +02:00
Nicholas Nethercote
7a5d814a04 Remove #[macro_use] extern crate tracing from rustc_const_eval. 2024-05-23 18:02:38 +10:00
Nicholas Nethercote
4497d345a8 Remove extern crate rustc_middle from rustc_const_eval. 
This requires exporting the interpreter macros so they can be used with
`use crate::interpret::*`.
 2024-05-13 08:02:14 +10:00
Ralf Jung
4497990dff remove some frame parameters that are no longer needed 2024-03-09 18:28:14 +01:00
Ralf Jung
29db7890ba interpret/visitor: ensure we only see normalized types 2024-02-10 17:00:24 +01:00
Ralf Jung
1025a12b64 interpret: project_downcast: do not ICE for uninhabited variants 2024-01-26 09:01:56 +01:00
Oli Scherer
1f398abcb6 const prop nonsense eliminated 2024-01-23 16:34:43 +00:00
Ralf Jung
5d87d8307f interpret: extend comment on the inhabitedness check in downcast 2023-12-14 09:50:47 +01:00
Ralf Jung
9ef1e35166 reject projecting to fields whose offset we cannot compute 2023-12-12 08:15:17 +01:00
Ralf Jung
ef15a8182b codegen, miri: fix computing the offset of an unsized field in a packed struct 2023-12-03 08:26:51 +01:00
klensy
aff6c741d4 remove unused pub fn 2023-11-23 14:11:02 +03:00
Ralf Jung
f3f9b795bd place evaluation: require the original pointer to be aligned if an access happens 2023-10-15 18:13:31 +02:00
Ralf Jung
ea9a24e32e avoid re-checking the offset while iterating an array/slice 2023-10-15 18:12:46 +02:00
Ralf Jung
b1ebf002c3 don't UB on dangling ptr deref, instead check inbounds on projections 2023-10-15 18:12:46 +02:00
ouz-a
cd7f471931 Add docs, remove code, change subtyper code 2023-10-02 23:39:44 +03:00
ouz-a
3148e6a993 subtyping_projections 2023-10-02 23:37:49 +03:00
Oli Scherer
2d4201f7c6 Skip reinterning if nothing changed 2023-09-28 16:13:38 +00:00
Oli Scherer
6ea2db7c2d Strip OpaqueCast during RevealAll. 2023-09-28 16:13:38 +00:00
Ralf Jung
fa5f13775a interpret: make MemPlace, Place, Operand types private to the interpreter 2023-09-04 17:53:38 +02:00
Ralf Jung
7cdeff266c a bit of meta-related cleanup on Projectable 2023-08-30 13:46:55 +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
Ralf Jung
efd54ccf5a interpret: use ConstPropNonsense for more const-prop induced issues 2023-08-06 15:20:03 +02:00
Ralf Jung
7d5886504c rename deref_operand → deref_pointer and some Miri helper functions 2023-08-01 13:40:29 +02:00
Ralf Jung
00fb45dccd interpret: make write functions generic over the place type 2023-07-25 22:33:58 +02:00
Ralf Jung
a2bcafa500 interpret: refactor projection code to work on a common trait, and use that for visitors 2023-07-25 14:30:58 +02:00
Ralf Jung
a593de4fab interpret: support projecting into Place::Local without force_allocation 2023-07-24 15:35:47 +02:00
Boxy
12138b8e5e Move TyCtxt::mk_x to Ty::new_x where applicable 2023-07-05 20:27:07 +01:00
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
Ralf Jung
158894464c interpret: add read_machine_[ui]size convenience methods 2022-12-12 11:10:19 +01:00