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run-make: drop `os_pipe` workaround now that `anonymous_pipe` is stable on beta
Follow-up to #137537 where I had to include a temporary dep on `os_pipe` before `anonymous_pipe` was stabilized. Now that `anonymous_pipe` is stable on beta, we can get rid of this workaround.
Closes #137532. (Final cleanup item)
r? `@Kobzol`
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rustdoc/clean: Fix lowering of fn params (fixes correctness & HIR vs. middle parity regressions)
**(0)** PR #136411 aimed to stop rendering unnamed params of fn ptr types as underscores in the common case (e.g., `fn(_: i32)` → `fn(i32)`) to make the rendered output stylistically more conventional.
**(0.a)** However, since the cleaning fn that the PR modified is also used for lowering the HIR params of foreign fns and required assoc fns in traits, it accidentally butchered the rendering of the latter two:
```rs
pub trait Trait { fn assoc_fn(_: i32); } // as well as (Rust 2015 only): fn assoc_fn(i32);
unsafe extern "C" { pub fn foreign_fn(_: i32); }
// Since 1.86 the fns above gets mis-rendered as:
pub fn assoc_fn(: i32) // <-- BUTCHERED
pub unsafe extern "C" fn foreign_fn(: i32) // <-- BUTCHERED
```
**(0.b)** Furthermore, it broke parity with middle cleaning (which includes inlined cross-crate re-exports) re-regressing parts of #44306 I once fixed in PR #103885.
**(1)** Lastly, PR #139035 introduced an ICE triggered by the following input file:
```rs
trait Trait { fn anon(()) {} } // internal error: entered unreachable code
```
---
This PR fixes all of these regressions and in the first commit renames several types and fns to be more ~~correct~~ descriptive and legible.
~~It also refactors `Param.name` to be of type `Option<Symbol>` instead `Symbol` (where `None` ~ `kw::Empty`), so rendering mistakes like that can no longer creep in like that (ignoring tests). CC #137978.~~ Independently done in PR #139846 a day prior.
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Disable combining LLD with external llvm-config
When an external `llvm-config` is used, we don't really know anything about the external LLD, as we don't build it ourselves. Therefore, we probably shouldn't allow using `rust-lld` nor copy it to the target sysroot.
Fixes: https://github.com/rust-lang/rust/issues/139477
CC ``@cuviper``
r? ``@onur-ozkan``
try-job: dist-x86_64-linux
try-job: dist-aarch64-linux
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Remove `name_or_empty`
Another step towards #137978.
r? ``@jdonszelmann``
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sync::mpsc: prevent double free on `Drop`
This PR is fixing a regression introduced by #121646 that can lead to a double free when dropping the channel.
The details of the bug can be found in the corresponding crossbeam PR https://github.com/crossbeam-rs/crossbeam/pull/1187
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willglynn:rustdoc_output_target_feature_information, r=aDotInTheVoid
rustdoc-json: Output target feature information
`#[target_feature]` attributes refer to a target-specific list of features. Enabling certain features can imply enabling other features. Certain features are always enabled on certain targets, since they are required by the target's ABI. Features can also be enabled indirectly based on other compiler flags.
Feature information is ultimately known to `rustc`. Rather than force external tools to track it – which may be wildly impractical due to `-C target-cpu` – have `rustdoc` output `rustc`'s feature data.
This change is motivated by https://github.com/obi1kenobi/cargo-semver-checks/issues/1246, which intends to detect semver hazards caused by `#[target_feature]`.
try-job: aarch64-gnu
try-job: armhf-gnu
try-job: test-various
try-job: x86_64-msvc-1
try-job: i686-msvc-1
try-job: x86_64-mingw-1
try-job: aarch64-apple
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deref patterns: implement implicit deref patterns
This implements implicit deref patterns (per https://hackmd.io/4qDDMcvyQ-GDB089IPcHGg#Implicit-deref-patterns) and adds tests and an unstable book chapter.
Best reviewed commit-by-commit. Overall there's a lot of additions, but a lot of that is tests, documentation, and simple(?) refactoring.
Tracking issue: #87121
r? ``@Nadrieril``
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update libc
This is needed for https://github.com/rust-lang/rust/pull/138699#discussion_r2048603474
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Introduce and use specialized `//@ ignore-auxiliary` for test support files instead of using `//@ ignore-test`
### Summary
Add a semantically meaningful directive for ignoring test *auxiliary* files. This is for auxiliary files that *participate* in actual tests but should not be built by `compiletest` (i.e. these files are involved through `mod xxx;` or `include!()` or `#[path = "xxx"]`, etc.).
### Motivation
A specialized directive like `//@ ignore-auxiliary` makes it way easier to audit disabled tests via `//@ ignore-test`.
- These support files cannot use the canonical `auxiliary/` dir because they participate in module resolution or are included, or their relative paths can be important for test intention otherwise.
Follow-up to:
- #139705
- #139783
- #139740
See also discussions in:
- [#t-compiler > Directive name for non-test aux files?](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Directive.20name.20for.20non-test.20aux.20files.3F/with/512773817)
- [#t-compiler > Handling disabled `//@ ignore-test` tests](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Handling.20disabled.20.60.2F.2F.40.20ignore-test.60.20tests/with/512005974)
- [#t-compiler/meetings > [steering] 2025-04-11 Dealing with disabled tests](https://rust-lang.zulipchat.com/#narrow/channel/238009-t-compiler.2Fmeetings/topic/.5Bsteering.5D.202025-04-11.20Dealing.20with.20disabled.20tests/with/511717981)
### Remarks on remaining unconditionally disabled tests under `tests/`
After this PR, against commit 79a272c6402, only **14** remaining test files are disabled through `//@ ignore-test`:
<details>
<summary>Remaining `//@ ignore-test` files under `tests/`</summary>
```
tests/debuginfo/drop-locations.rs
4://@ ignore-test (broken, see #128971)
tests/rustdoc/macro-document-private-duplicate.rs
1://@ ignore-test (fails spuriously, see issue #89228)
tests/rustdoc/inline_cross/assoc-const-equality.rs
3://@ ignore-test (FIXME: #125092)
tests/ui/match/issue-27021.rs
7://@ ignore-test (#54987)
tests/ui/match/issue-26996.rs
7://@ ignore-test (#54987)
tests/ui/issues/issue-49298.rs
9://@ ignore-test (#54987)
tests/ui/issues/issue-59756.rs
2://@ ignore-test (rustfix needs multiple suggestions)
tests/ui/precondition-checks/write.rs
5://@ ignore-test (unimplemented)
tests/ui/precondition-checks/read.rs
5://@ ignore-test (unimplemented)
tests/ui/precondition-checks/write_bytes.rs
5://@ ignore-test (unimplemented)
tests/ui/explicit-tail-calls/drop-order.rs
2://@ ignore-test: tail calls are not implemented in rustc_codegen_ssa yet, so this causes 🧊
tests/ui/panics/panic-short-backtrace-windows-x86_64.rs
3://@ ignore-test (#92000)
tests/ui/json/json-bom-plus-crlf-multifile-aux.rs
3://@ ignore-test Not a test. Used by other tests
tests/ui/traits/next-solver/object-soundness-requires-generalization.rs
2://@ ignore-test (see #114196)
```
</details>
Of these, most are either **unimplemented**, or **spurious**, or **known-broken**. The outstanding one is `tests/ui/json/json-bom-plus-crlf-multifile-aux.rs` which I did not want to touch in *this* PR -- that aux file has load-bearing BOM and carriage returns and byte offset matters. I think those test files that require special encoding / BOM probably are better off as `run-make` tests. See #139968 for that aux file.
### Review advice
- Best reviewed commit-by-commit.
- The directive name diverged from the most voted `//@ auxiliary` because I think that's easy to confuse with `//@ aux-{crate,dir}`.
r? compiler
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f*::NAN: guarantee that this is a quiet NaN
I think we should guarantee that this is a quiet NaN. This then implies that programs not using `f*::from_bits` (or unsafe type conversions) are guaranteed to only work with quiet NaNs. It would be awkward if people start to write `0.0 / 0.0` instead of using the constant just because they want to get a guaranteed-quiet NaN.
This is a `@rust-lang/libs-api` change. The definition of this constant currently is `0.0 / 0.0`, which is already guaranteed to be a quiet NaN. So all this does is forward that guarantee to our users.
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remove test trigger fron cron job
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This improves consistency with commonly expected CLI conventions,
avoiding a common stutter people make when running tests (trying what
they expect and then having to check the docs to then user whats
accepted).
An alternative could have been to take a value, like `--capture <value>` (e.g. `pytest` does this).
Overall, we're shifting focus for features to custom test harnesses (see #134283).
Most of `pytest`s modes will likely be irrelevant in that situation.
As for the rest, its too early to tell which, if any, may be relevant,
so we're sticking with this small, quality of life improvement.
By deprecating `--nocapture`, we intend that custom test harnesses do
not need to support it for reasons outside of their own compatibility
requirements, much like the deprecation in #134283
I'm punting for now on the naming of `RUST_TEST_NOCAPTURE`.
I feel like T-testing-devex should do a wider look at environment
variables role in lib`test` before evaluating whether to
- Deprecate it in favor of the user passing CLI flags or the test runner
providing its own config
- Deprecate in favor of `RUST_TEST_NO_CAPTURE`
- Deprecate in favor of `RUST_TEST_CAPTURE`
Other CLI flags were evaluated for casing consistency:
- `--logfile` has the same problem but was deprecated in #134283
Fixes #133073
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opt-dist: add a flag for running tests
when using `opt-dist local` user probably won't need to run tests (for various reasons). currently the only way to disable them is to set `TRY_DIST_BUILD=1`, which is not obvious and can be bad for non-CI envronments (as I guess)
possibly the `run_tests` name can be confusing too...
r? Kobzol
try-job: dist-x86_64-linux
try-job: dist-x86_64-msvc
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rustdoc: Support inlined cross-crate re-exported trait aliases
Previously we'd just drop them. As a result of this PR, [`core::ptr::Thin`](https://doc.rust-lang.org/nightly/core/ptr/traitalias.Thin.html) will be admitted into the `std` façade!
Also, render the where clause *after* the bounds / the `=`, not before them, as it should be.
r? rustdoc
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Upgrade to `rustc-rayon-core` 0.5.1
* [Fix a race with deadlock detection](https://github.com/rust-lang/rustc-rayon/pull/15)
* [Cherry-pick changes from upstream rayon-core](https://github.com/rust-lang/rustc-rayon/pull/16)
- This also removes a few dependencies from rustc's tidy list.
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bootstrap: enable zlib for LLVM for Windows GNU
when compiling target LLVM with `opt-dist local` on Windows/MinGW, profraw files are being compressed with zlib, so compiling without it will make `llvm-profdata` complain about lacking of zlib support. this error is shown:
`profile uses zlib compression but the profile reader was built without zlib support`
example from llvm test suite: https://github.com/llvm/llvm-project/blob/76b5fcbf975547251faaeed8b567ea09d139a607/llvm/test/tools/llvm-profdata/nocompress.test#L15.
implementation of step 3. from https://rust-lang.zulipchat.com/#narrow/channel/122651-general/topic/experiment.20with.20.60opt-dist.20local.60.20in.20MSYS2/near/512393873
r? Kobzol
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Shourya742:2025-04-15-add-retries-to-remove_and_create_dir_all, r=jieyouxu
add retries to remove and create dir all
closes: #139230
r? ```@jieyouxu```
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Rollup of 8 pull requests
Successful merges:
- #138632 (Stabilize `cfg_boolean_literals`)
- #139416 (unstable book; document `macro_metavar_expr_concat`)
- #139782 (Consistent with treating Ctor Call as Struct in liveness analysis)
- #139885 (document RUSTC_BOOTSTRAP, RUSTC_OVERRIDE_VERSION_STRING, and -Z allow-features in the unstable book)
- #139904 (Explicitly annotate edition for `unpretty=expanded` and `unpretty=hir` tests)
- #139932 (transmutability: Refactor tests for simplicity)
- #139944 (Move eager translation to a method on Diag)
- #139948 (git: ignore `60600a6fa403216bfd66e04f948b1822f6450af7` for blame purposes)
r? `@ghost`
`@rustbot` modify labels: rollup
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This is for files that *participate* in actual tests but should not be
built by `compiletest` (i.e. these files are involved through `mod xxx;`
or `include!()` or `#[path = "xxx"]`, etc.).
A specialized directive like `//@ ignore-auxiliary` makes it way easier
to audit disabled tests via `//@ ignore-test`.
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when using `opt-dist local` user probably won't need to run tests (for
various reasons). currently the only way to disable them is to set
`TRY_DIST_BUILD=1`, which is not obvious and can be bad for non-CI
envronments (as I guess)
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when compiling target LLVM with `opt-dist local` on Windows/MinGW,
profraw files are being compressed with zlib, so compiling without it
will make `llvm-profdata` complain about lacking of zlib support. this
error is shown:
`profile uses zlib compression but the profile reader was built without
zlib support`
example from llvm test suite: https://github.com/llvm/llvm-project/blob/76b5fcbf975547251faaeed8b567ea09d139a607/llvm/test/tools/llvm-profdata/nocompress.test#L15
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internal: Build MacOS AArch64 releases on that platform
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fix: Fix a bug with predicate lowering of associated items
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Update cargo
4 commits in 864f74d4eadcaea3eeda37a2e7f4d34de233d51e..d811228b14ae2707323f37346aee3f4147e247e6
2025-04-11 20:37:27 +0000 to 2025-04-15 15:18:42 +0000
- use `zlib-rs` for gzip compression in rust code (rust-lang/cargo#15417)
- test(rustfix): Use `snapbox` for snapshot testing (rust-lang/cargo#15429)
- chore(deps): update rust crate gix to 0.71.0 [security] (rust-lang/cargo#15391)
- Make sure search paths inside OUT_DIR precede external paths (rust-lang/cargo#15221)
Also,
* The license exception of sha1_smol with BSD-3-Clause is no longer needed, as `gix-*` doesn't depend on it.
* Cargo depends on zlib-rs, which is distributed under Zlib license
r? ghost
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from "argument" to "parameter"
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Replace check_shim with check_shim_abi in unix/foreign_items shims
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