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Don't duplicate anonymous lifetimes for async fn in traits
`record_lifetime_params_for_async` needs to be called outside of the scope of the function, or else it'll end up collecting anonymous lifetimes twice (those on the function and those within the `AnonymousCreateParameter` rib). This matches how `record_lifetime_params_for_async` is being used for functions with bodies below.
This fixes (partially) #110963 when the lifetimes are late-bound, but does not do so when the lifetimes are early-bound (as seen from the known-bug that I added).
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Make drop_flags an IndexVec.
Fixes https://github.com/rust-lang/rust/issues/91943
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Clear response values for overflow in new solver
When we have an overflow, return a trivial query response. This fixes an ICE with the code described in #110544:
```rust
trait Trait {}
struct W<T>(T);
impl<T, U> Trait for W<(W<T>, W<U>)>
where
W<T>: Trait,
W<U>: Trait,
{}
fn impls<T: Trait>() {}
fn main() {
impls::<W<_>>()
}
```
Where, while proving `W<?0>: Trait`, we overflow but still apply the query response of `?0 = (W<?1>, W<?2>)`. Then while re-processing the query to validate that our evaluation result was stable, we get a different query response that looks like `?1 = (W<?3>, W<?4>), ?2 = (W<?5>, W<?6>)`, and so we trigger the ICE.
Also, by returning a trivial query response we also avoid the infinite-loop/OOM behavior of the old solver.
r? ``@lcnr``
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[master] Bump stage0
r? `@Mark-Simulacrum`
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Rollup of 8 pull requests
Successful merges:
- #110877 (Provide better type hints when a type doesn't support a binary operator)
- #110917 (only error combining +whole-archive and +bundle for rlibs)
- #110921 (Use `NonNull::new_unchecked` and `NonNull::len` in `rustc_arena`.)
- #110927 (Encoder/decoder cleanups)
- #110944 (share BinOp::Offset between CTFE and Miri)
- #110948 (run-make test: using single quotes to not trigger the shell)
- #110957 (Fix an ICE in conflict error diagnostics)
- #110960 (fix false negative for `unused_mut`)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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fix false negative for `unused_mut`
fixes https://github.com/rust-lang/rust/issues/110849
We want to avoid double diagnostics for code like this, but only if an error actually occurs:
```rust
fn main() {
let mut x: (i32, i32);
x.0 = 1;
}
```
The first commit fixes the lint and the second one removes all the unused `mut`s it found.
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r=cjgillot
Fix an ICE in conflict error diagnostics
Fixes #110929
r? ``@cjgillot``
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run-make test: using single quotes to not trigger the shell
This test got added in #110801.
I'm no expert on Makefiles, but IIUC this command is passed to the shell, which usually tries to execute commands specified in between backticks in double-quoted strings.
Using single quotes should fix this, I think. (Note: Waiting for CI to test this, since I only have a web browser available right now).
r? ``@jyn514``
cc ``@WaffleLapkin``
Since this is breaking our build bot, even if it is not directly LLVM related: ``@rustbot`` label: +llvm-main
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Provide better type hints when a type doesn't support a binary operator
For example, when checking whether `vec![A] == vec![A]` holds, we first evaluate the LHS's ty, then probe for any `PartialEq` implementations for that. If none is found, we report an error by evaluating `Vec<A>: PartialEq<?0>` for fulfillment errors, but the RHS is not yet evaluated and remains an inference variable `?0`!
To fix this, we evaluate the RHS and equate it to that RHS infer var `?0`, so that we are able to provide more detailed fulfillment errors for why `Vec<A>: PartialEq<Vec<A>>` doesn't hold (namely, the nested obligation `A: PartialEq<A>` doesn't hold).
Fixes #95285
Fixes #110867
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rustdoc: Fix missing `repr` attribute in doc(inline) on foreign items
Fixes https://github.com/rust-lang/rust/issues/110698.
r? `@notriddle`
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Use MIR's `Offset` for pointer `add` too
~~Status: draft while waiting for #110822 to land, since this is built atop that.~~
~~r? `@ghost~~`
Canonical Rust code has mostly moved to `add`/`sub` on pointers, which take `usize`, instead of `offset` which takes `isize`. (And, relatedly, when `sub_ptr` was added it turned out it replaced every single in-tree use of `offset_from`, because `usize` is just so much more useful than `isize` in Rust.)
Unfortunately, `intrinsics::offset` could only accept `*const` and `isize`, so there's a *huge* amount of type conversions back and forth being done. They're identity conversions in the backend, but still end up producing quite a lot of unhelpful MIR.
This PR changes `intrinsics::offset` to accept `*const` *and* `*mut` along with `isize` *and* `usize`. Conveniently, the backends and CTFE already handle this, since MIR's `BinOp::Offset` [already supports all four combinations](https://github.com/rust-lang/rust/blob/adaac6b166df57ea5a20d56e4cce503b55aca927/compiler/rustc_const_eval/src/transform/validate.rs#L523-L528).
To demonstrate the difference, I added some `mir-opt/pre-codegen/` tests around slice indexing. Here's the difference to `[T]::get_mut`, since it uses `<*mut _>::add` internally:
```diff
`@@` -79,30 +70,21 `@@` fn slice_get_mut_usize(_1: &mut [u32], _2: usize) -> Option<&mut u32> {
StorageLive(_12); // scope 3 at $SRC_DIR/core/src/slice/index.rs:LL:COL
StorageLive(_9); // scope 6 at $SRC_DIR/core/src/slice/index.rs:LL:COL
_9 = _8 as *mut u32 (PtrToPtr); // scope 11 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
- StorageLive(_13); // scope 13 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
- _13 = _2 as isize (IntToInt); // scope 13 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
- StorageLive(_14); // scope 15 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
- StorageLive(_15); // scope 15 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
- _15 = _9 as *const u32 (Pointer(MutToConstPointer)); // scope 15 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
- _14 = Offset(move _15, _13); // scope 15 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
- StorageDead(_15); // scope 15 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
- _7 = move _14 as *mut u32 (PtrToPtr); // scope 15 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
- StorageDead(_14); // scope 15 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
- StorageDead(_13); // scope 13 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
+ _7 = Offset(_9, _2); // scope 13 at $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL
StorageDead(_9); // scope 6 at $SRC_DIR/core/src/slice/index.rs:LL:COL
StorageDead(_12); // scope 3 at $SRC_DIR/core/src/slice/index.rs:LL:COL
StorageDead(_11); // scope 3 at $SRC_DIR/core/src/slice/index.rs:LL:COL
```
https://github.com/rust-lang/rust/pull/110837/commits/1c1c8e442add0f46905a57a25a6cba52b8b0c54d#diff-a841b6a4538657add3f39bc895744331453d0625e7aace128b1f604f0b63c8fdR80
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Rollup of 6 pull requests
Successful merges:
- #110766 (More core::fmt::rt cleanup.)
- #110873 (Migrate trivially translatable `rustc_parse` diagnostics)
- #110904 (rustdoc: rebind bound vars to type-outlives predicates)
- #110913 (Add some missing built-in lints)
- #110918 (`remove_dir_all`: try deleting the directory even if `FILE_LIST_DIRECTORY` access is denied)
- #110920 (Fix unavailable url)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Add some missing built-in lints
(and also sort them, so this is best reviewed one commit at a time)
Fixes #110911
I wonder if there's a good way to detect when a lint is built-in (i.e. not associated to a lint pass). If so, it needs to be added to this list, or else we're unable to `allow` or `deny` it. Leaving that for future work, I guess...
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rustdoc: rebind bound vars to type-outlives predicates
Fixes #110900.
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r=compiler-errors
Migrate trivially translatable `rustc_parse` diagnostics
cc #100717
Migrate diagnostics in `rustc_parse` which are emitted in a single statement. I worked on this by expanding the lint introduced in #108760, although that isn't included here as there is much more work to be done to satisfy it
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More core::fmt::rt cleanup.
- Removes the `V1` suffix from the `Argument` and `Flag` types.
- Moves more of the format_args lang items into the `core::fmt::rt` module. (The only remaining lang item in `core::fmt` is `Arguments` itself, which is a public type.)
Part of https://github.com/rust-lang/rust/issues/99012
Follow-up to https://github.com/rust-lang/rust/pull/110616
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Rollup of 7 pull requests
Successful merges:
- #109702 (configure --set support list as arguments)
- #110620 (Document `const {}` syntax for `std::thread_local`.)
- #110721 (format panic message only once)
- #110881 (refactor(docs): remove macro resolution fallback)
- #110893 (remove inline const deadcode in typeck)
- #110898 (Remove unused std::sys_common::thread_local_key::Key)
- #110909 (Skip `rustc` version detection on macOS)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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refactor(docs): remove macro resolution fallback
close https://github.com/rust-lang/rust/issues/110879
r?`@jyn514`
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format panic message only once
Formatting the panic message multiple times can cause problems for some real-world crates, so here's a test to ensure that we don't do that.
This was regressed in https://github.com/rust-lang/rust/pull/109507 and reverted in https://github.com/rust-lang/rust/pull/110782.
fixes https://github.com/rust-lang/rust/issues/110717
fixes https://github.com/rust-itertools/itertools/issues/694
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Fix `ui/io-checks/inaccessbile-temp-dir.rs` test
Fixes #110794
r? `@jyn514`
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r=jackh726
Add `known-bug` tests for 4 unsound issues
This PR adds `known-bug` tests for 4 unsound issues as part of #105107
- #40582
- #49682
- #74629
- #105782
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Make `method-not-found-generic-arg-elision.rs` error message not path dependent
Every time I bless `tests/ui/methods/method-not-found-generic-arg-elision.rs`, I get some nonsense "type is too long" + "written to disk" that shows up and have to manually revert because the combination of my rustc repo path + the UI test directory hits the length limit for printing types spilling to disk (since this happens before UI test path sanitization).
The fact that we use a closure in this test doesn't have to do with the UI test, so just box the closure to make the type name smaller and not path dependent.
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`IntoFuture::into_future` is no longer unstable
We don't need to gate the `IntoFuture::into_future` call in `.await` lowering anymore.
``@bors`` rollup
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Migrate `rustc_passes` to translatable diagnostics
cc #100717
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Remove repeated definite articles
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(formally `...inaccessbile...`)
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