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Do not ICE in privacy when type inference fails.
Fixes https://github.com/rust-lang/rust/issues/122736
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const_refs_to_static test and cleanup
r? ``@RalfJung``
test the existing behaviour of adt_const_params combined with const_refs_to_static.
also remove a dead error variant about consts referring to statics
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mark undetermined if target binding in current ns is not got
Fixes #126376
Fixes #126389
Add a branch to handle more cases...
r? `@petrochenkov`
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Rollup of 3 pull requests
Successful merges:
- #126226 (Make suggestion to change `Fn` to `FnMut` work with methods as well)
- #126570 (Convert a `span_bug` to a `span_delayed_bug`.)
- #126580 (Add `run-make/const_fn_mir` missing test annotation)
r? `@ghost`
`@rustbot` modify labels: rollup
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Convert a `span_bug` to a `span_delayed_bug`.
PR #121208 converted this from a `span_delayed_bug` to a `span_bug` because nothing in the test suite caused execution to hit this path. But now fuzzing has found a test case that does hit it. So this commit converts it back to `span_delayed_bug` and adds the relevant test.
Fixes #126385.
r? `@lcnr`
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Make suggestion to change `Fn` to `FnMut` work with methods as well
Fixes #125325
The issue occurred because the code that emitted the suggestion to change `Fn` to `FnMut` worked only for function calls and not method calls. This PR makes it work with methods as well.
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More preparation for new trait solver uplifting
Getting closer to being able to uplift the whole solver 🙏
Each commit should be self-justifying.
r? lcnr
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PR #121208 converted this from a `span_delayed_bug` to a `span_bug`
because nothing in the test suite caused execution to hit this path. But
now fuzzing has found a test case that does hit it. So this commit
converts it back to `span_delayed_bug` and adds the relevant test.
Fixes #126385.
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coverage: Several small improvements to graph code
This PR combines a few small improvements to coverage graph handling code:
- Remove some low-value implementation tests that were getting in the way of other changes.
- Clean up `pub` visibility.
- Flatten some code using let-else.
- Prefer `.copied()` over `.cloned()`.
`@rustbot` label +A-code-coverage
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coverage: Arrange span extraction/refinement as a series of passes
The old code for extracting/refining coverage spans from MIR has been dismantled and split up into several passes (e.g. see #126294), but because this was done incrementally, the resulting code is disorganised.
This PR addresses that by moving the main control-flow into a single function (`coverage::spans::extract_refined_covspans`) that more clearly shows the process as a series of separate steps, most delegated to helper functions in the same file.
This should make it easier to understand and modify the refinement process. It also means that submodule `from_mir` is now only concerned with the details of extracting relevant spans from the various kinds of MIR statement/terminator.
There should be no change to the resulting coverage maps, as demonstrated by the lack of changes to tests.
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Resolve elided lifetimes in assoc const to static if no other lifetimes are in scope
Implements the change to elided lifetime resolution in *associated consts* subject to FCP here: https://github.com/rust-lang/rust/issues/125190#issue-2301532282
Specifically, walk the enclosing lifetime ribs in an associated const, and if we find no other lifetimes, then resolve to `'static`.
Also make it work for traits, but don't lint -- just give a hard error in that case.
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rustc_span: Optimize more hygiene operations using `Span::map_ctxt`
I missed these in https://github.com/rust-lang/rust/pull/125017.
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`boxed_slice_into_iter`: tiny doc correction
`CURRENT_RUSTC_VERSION` isn't flexible enough for this, so it got replaced by 1.80.0 instead of 1.79.0 in #126273 :/
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Honor collapse_debuginfo for statics.
fixes #126363
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Various Redox OS fixes and add i686 Redox OS target
All of these come from the fork used by Redox OS available at https://gitlab.redox-os.org/redox-os/rust/-/commits/redox-2024-05-11/?ref_type=heads.
cc `@jackpot51`
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Co-Authored-By: Jeremy Soller <jackpot51@gmail.com>
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* Allow crt-static for dylibs
* Pass -lgcc to the linker
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Introduce `{IndexNewtype,SyntaxContext}::from_u16` for convenience because small indices are sometimes encoded as `u16`.
Use `SpanData::span` instead of `Span::new` where appropriate.
Add a clarifying comment about decoding span parents.
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Rollup of 4 pull requests
Successful merges:
- #125112 (Document behavior of `create_dir_all` wrt. empty path)
- #126127 (Spell out other trait diagnostic)
- #126309 (unify git command preperation)
- #126539 (Update `Arc::try_unwrap()` docs)
r? `@ghost`
`@rustbot` modify labels: rollup
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Spell out other trait diagnostic
I recently saw somebody confused about the diagnostic thinking it was suggesting to add an `as` cast. This change is longer but I think it's clearer
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Using `pub(super)` makes it harder to move code between modules, and doesn't
provide much privacy benefit over `pub(crate)`.
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These tests might have originally been useful as an implementation aid, but now
they don't provide enough value to justify the burden of updating them as the
underlying code changes.
The code they test is still exercised by the main end-to-end coverage tests.
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Only compute vtable information during codegen
This PR removes vtable information from the `Object` and `TraitUpcasting` candidate sources in the trait solvers, and defers the computation of relevant information to `Instance::resolve`. This is because vtables really aren't a thing in the trait world -- they're an implementation detail in codegen.
Previously it was just easiest to tangle this information together since we were already doing the work of looking at all the supertraits in the trait solver, and specifically because we use traits to represent when it's possible to call a method via a vtable (`Object` candidate) and do upcasting (`Unsize` candidate). but I am somewhat suspicious we're doing a *lot* of extra work, especially in polymorphic contexts, so let's see what perf says.
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trait_selection: remove extra words
Tiny doc cleanup.
Fixes https://github.com/rust-lang/rust/issues/88231.
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r=compiler-errors
Make uninitialized_error_reported a set of locals
Another artifact of how places used to be able to be based on statics and not just locals. This set is exclusively filled with PlaceRefs that are just locals, so it should just contain locals directly.
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Make proof tree probing and `Candidate`/`CandidateSource` generic over interner
`<TyCtxt<'tcx>>` is ugly, but will become `<I>` when things actually become generic.
r? lcnr
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smir: merge identical Constant and ConstOperand types
The first commit renames the const operand visitor functions on regular MIR to match the type name, that was forgotten in the original rename.
The second commit changes stable MIR, fixing https://github.com/rust-lang/project-stable-mir/issues/71. Previously there were two different smir types for the MIR type `ConstOperand`, one used in `Operand` and one in `VarDebugInfoContents`.
Maybe we should have done this with https://github.com/rust-lang/rust/pull/125967, so there's only a single breaking change... but I saw that PR too late.
Fixes https://github.com/rust-lang/project-stable-mir/issues/71
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Check that alias-relate terms are WF if reporting an error in alias-relate
Check that each of the left/right term is WF when deriving a best error obligation for an alias-relate goal. This will make sure that given `<i32 as NotImplemented>::Assoc = ()` will drill down into `i32: NotImplemented` since we currently treat the projection as rigid.
r? lcnr
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Rollup of 9 pull requests
Successful merges:
- #125829 (rustc_span: Add conveniences for working with span formats)
- #126361 (Unify intrinsics body handling in StableMIR)
- #126417 (Add `f16` and `f128` inline ASM support for `x86` and `x86-64`)
- #126424 ( Also sort `crt-static` in `--print target-features` output)
- #126428 (Polish `std::path::absolute` documentation.)
- #126429 (Add `f16` and `f128` const eval for binary and unary operationations)
- #126448 (End support for Python 3.8 in tidy)
- #126488 (Use `std::path::absolute` in bootstrap)
- #126511 (.mailmap: Associate both my work and my private email with me)
r? `@ghost`
`@rustbot` modify labels: rollup
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