Rollup of 8 pull requests #139992
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Rollup of 8 pull requests #139992
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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`.
Assembly for MIPS uses, by convention, a different prefix for local anonymous variables.
This commit fixes a false positive of the warning triggered for rust-lang#138762 and the fix is to codify that zero-sized types are "safe" in both the old and new ABIs.
This intrinsic doesn't drop the value that is not selected so this is manually done in the public function that wraps the intrinsic.
…-obk Autodiff batching2 ~I will rebase it once my first PR landed.~ done. This autodiff batch mode is more similar to scalar autodiff, since it still only takes one shadow argument. However, that argument is supposed to be `width` times larger. r? `@oli-obk` Tracking: - rust-lang#124509
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.
…eywiser Ignore zero-sized types in wasm future-compat warning This commit fixes a false positive of the warning triggered for rust-lang#138762 and the fix is to codify that zero-sized types are "safe" in both the old and new ABIs.
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: - rust-lang#139705 - rust-lang#139783 - rust-lang#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 &rust-lang#96;//@ ignore-test&rust-lang#96; 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 > &rust-lang#91;steering&rust-lang#93; 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 79a272c, 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 rust-lang#128971) tests/rustdoc/macro-document-private-duplicate.rs 1://@ ignore-test (fails spuriously, see issue rust-lang#89228) tests/rustdoc/inline_cross/assoc-const-equality.rs 3://@ ignore-test (FIXME: rust-lang#125092) tests/ui/match/issue-27021.rs 7://@ ignore-test (rust-lang#54987) tests/ui/match/issue-26996.rs 7://@ ignore-test (rust-lang#54987) tests/ui/issues/issue-49298.rs 9://@ ignore-test (rust-lang#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 (rust-lang#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 rust-lang#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 rust-lang#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
…cola update libc This is needed for rust-lang#138699 (comment)
…g-merging-test, r=wesleywiser Make C string merging test work on MIPS Assembly for MIPS uses, by convention, a different prefix for local anonymous variables.
…fJung Change `InterpCx::instantiate*` function visibility to pub For some ongoing work in Miri we need to be able to access `instantiate_from_current_frame_and_normalize_erasing_regions` and `instantiate_from_frame_and_normalize_erasing_regions` on `InterpCx`. r? `@RalfJung`
… r=RalfJung Fix drop handling in `hint::select_unpredictable` This intrinsic doesn't drop the value that is not selected so this is manually done in the public function that wraps the intrinsic.
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@bors r+ rollup=never p=5 |
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☀️ Test successful - checks-actions |
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📌 Perf builds for each rolled up PR:
previous master: a15cce2690 In the case of a perf regression, run the following command for each PR you suspect might be the cause: |
What is this?This is an experimental post-merge analysis report that shows differences in test outcomes between the merged PR and its parent PR.Comparing a15cce2 (parent) -> 1f76d21 (this PR) Test differencesShow 765 test diffsStage 0
Stage 1
Stage 2
Additionally, 680 doctest diffs were found. These are ignored, as they are noisy. Job group index
Job duration changes
How to interpret the job duration changes?Job durations can vary a lot, based on the actual runner instance |
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Finished benchmarking commit (1f76d21): comparison URL. Overall result: ❌✅ regressions and improvements - please read the text belowOur benchmarks found a performance regression caused by this PR. Next Steps:
@rustbot label: +perf-regression Instruction countThis is the most reliable metric that we have; it was used to determine the overall result at the top of this comment. However, even this metric can sometimes exhibit noise.
Max RSS (memory usage)Results (primary -0.8%, secondary 2.1%)This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
CyclesResults (primary 0.2%)This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
Binary sizeResults (primary 0.1%, secondary -1.9%)This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
Bootstrap: 775.923s -> 771.086s (-0.62%) |
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Successful merges:
//@ ignore-auxiliaryfor test support files instead of using//@ ignore-test#139967 (Introduce and use specialized//@ ignore-auxiliaryfor test support files instead of using//@ ignore-test)InterpCx::instantiate*function visibility to pub #139974 (ChangeInterpCx::instantiate*function visibility to pub)hint::select_unpredictable#139977 (Fix drop handling inhint::select_unpredictable)r? @ghost
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