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Merge return place with other locals in CopyProp.
This reintroduces a limited form of NRVO.
r? wg-mir-opt
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[rustdoc] Only keep impl blocks from bodies
Fixes https://github.com/rust-lang/rust/issues/111415.
The problem was that we kept everything inside bodies whereas only impl blocks are actually accessible from outside bodies.
r? `@notriddle`
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fix(diagnostic): wrap parens for ref impl trait param
Fixes https://github.com/rust-lang/rust/issues/99597
When parameters are an `impl_trait` which it needed to add trait, and it is a reference, add parentheses to the type of the parameter in the suggestion
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Erase `ReError` properly
Fixes #111341
Since we check whether a type has free regions before erasing (to short circuit unnecesary folding), we need to consider `ReError` as a free region, or else we'll skip it when erasing a type that only mentions `ReError`.
cc `@nnethercote`
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Handle error body in generator layout
Fixes #111468
I feel like making this query return `Option<GeneratorLayout>` might be better but had some issues with that approach
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Always fall back to PartialEq when a constant in a pattern is not recursively structural-eq
Right now we destructure the constant as far as we can, but with this PR we just don't take it apart anymore. This is preparatory work for moving to always using valtrees, as these will just do a single conversion of the constant to a valtree at the start, and if that fails, fall back to `PartialEq`.
This removes a few cases where we emitted the `unreachable pattern` lint, because we stop looking into the constant deeply enough to detect that a constant is already covered by another pattern.
Previous work: https://github.com/rust-lang/rust/pull/70743
This is groundwork towards fixing https://github.com/rust-lang/rust/issues/83085 and https://github.com/rust-lang/rust/issues/105047
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Add more interesting nonsense to weird-exprs.rs
Some cursed things rust allows that I've ran into.
[The second is taken from here](https://twitter.com/Lucretiel/status/1638929955751964679)
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Suppress "erroneous constant used" for constants tainted by errors
When constant evaluation fails because its MIR is tainted by errors,
suppress note indicating that erroneous constant was used, since those
errors have to be fixed regardless of the constant being used or not.
Fixes #110891.
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r=Nilstrieb
Recover `impl<T ?Sized>` correctly
Fixes #111327
r? ````@Nilstrieb```` but you can re-roll
Alternatively, happy to close this if we're okay with just saying "sorry #111327 is just a poor side-effect of parser ambiguity" 🤷
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refactor(resolve): clean up the early error return caused by non-call
closes https://github.com/rust-lang/rust/issues/109250
It seems no bad happened, r? ``@Nilstrieb``
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Combine three generalizer implementations
Fixes #111092
Fixes #109505
This code is a bit delicate and there were subtle changes between them, so I'll leave inline comments where further inspection is needed.
Regarding this comment from #109813 -- "add tests triggering all codepaths: at least the combine and the const generalizer", can't really do that now, and I don't really know how we'd get a higher-ranked const error since non-lifetime binders doesn't *really* support `for<const ..>` (it errors out when you try to use it).
r? `@lcnr`
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Custom MIR: Support `Rvalue::CopyForDeref`
r? `@oli-obk` or `@tmiasko` or `@JakobDegen`
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Move expansion of query macros in rustc_middle to rustc_middle::query
This moves the expansion of `define_callbacks!` and `define_feedable!` from `rustc_middle::ty::query` to `rustc_middle::query`.
This means that types used in queries are both imported and used in `rustc_middle::query` instead of being split between these modules. It also decouples `rustc_middle::ty::query` further from `rustc_middle` which is helpful since we want to move `rustc_middle::ty::query` to the query system crates.
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Stop checking for the absence of something that doesn't exist
A couple of codegen tests are doing
```
// CHECK-NOT: slice_index_len_fail
```
However, that function no longer exists: [the only places](https://github.com/search?q=repo%3Arust-lang%2Frust+slice_index_len_fail&type=code) it occurs in the repo are in those tests.
So this PR updates the tests to check for the absense of the functions that are actually used today to panic for out-of-bounds indexing.
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recursively structural-eq
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Fix ice caused by shorthand fields in NoFieldsForFnCall
Fixes #111416
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When constant evaluation fails because its MIR is tainted by errors,
suppress note indicating that erroneous constant was used, since those
errors have to be fixed regardless of the constant being used or not.
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allow mutating function args through `&raw const`
Fixes https://github.com/rust-lang/rust/issues/111502 by "turning off the sketchy optimization while we figure out if this is ok", like `@JakobDegen` said.
The first commit in this PR removes some suspicious looking logic from the same method, but should have no functional changes, since it doesn't modify the `context` outside of the method. Best reviewed commit by commit.
r? opsem
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Rollup of 4 pull requests
Successful merges:
- #111463 (Better diagnostics for `env!` where variable contains escape)
- #111477 (better diagnostics for `impl<..> impl Trait for Type`)
- #111534 (rustdoc-json: Add tests for `#![feature(inherent_associated_types)]`)
- #111549 ([rustdoc] Convert more GUI tests colors to their original format)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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[rustdoc] Convert more GUI tests colors to their original format
Follow-up of https://github.com/rust-lang/rust/pull/111459.
The update for the `browser-ui-test` version is about improvements for color handling (alpha for hex format in particular).
r? `@notriddle`
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rustdoc-json: Add tests for `#![feature(inherent_associated_types)]`
Follow up to #109410, CC `@fmease`
r? `@GuillaumeGomez`
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better diagnostics for `impl<..> impl Trait for Type`
Fixes #109963
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Better diagnostics for `env!` where variable contains escape
Fixes #110559
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Allow MIR debuginfo to point to a variable's address
MIR optimizations currently do not to operate on borrowed locals.
When enabling #106285, many borrows will be left as-is because they are used in debuginfo. This pass allows to replace this pattern directly in MIR debuginfo:
```rust
a => _1
_1 = &raw? mut? _2
```
becomes
```rust
a => &_2
// No statement to borrow _2.
```
This pass is implemented as a drive-by in ReferencePropagation MIR pass.
This transformation allows following following MIR opts to treat _2 as an unborrowed local, and optimize it as such, even in builds with debuginfo.
In codegen, when encountering `a => &..&_2`, we create a list of allocas:
```llvm
store ptr %_2.dbg.spill, ptr %a.ref0.dbg.spill
store ptr %a.ref0.dbg.spill, ptr %a.ref1.dbg.spill
...
call void `@llvm.dbg.declare(metadata` ptr %a.ref{n}.dbg.spill, /* ... */)
```
Caveat: this transformation looses the exact type, we do not differentiate `a` as a immutable, mutable reference or a raw pointer. Everything is declared to `*mut` to codegen. I'm not convinced this is a blocker.
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Populate effective visibilities in `rustc_privacy` (take 2)
Same as https://github.com/rust-lang/rust/pull/110907 + regressions fixes.
Fixes https://github.com/rust-lang/rust/issues/111359.
r? `@petrochenkov`
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Add a tidy check to find unexpected files in UI tests, and clean up the results
While looking at UI tests, I noticed several weird files that were not being tested, some from even pre-1.0. I added a tidy check that fails if any files not known to compiletest or not used in tests (via manual list) are present in the ui tests.
Unfortunately the root entry limit had to be raised by 1 to accommodate the stderr file for one of the tests.
r? `@fee1-dead`
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Align unsized locals
Allocate an extra space for unsized locals and manually align the storage, since alloca doesn't support dynamic alignment.
Fixes #71416.
Fixes #71695.
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