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Urgau
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Apr 11, 2025
| "avx512vl", | ||
| "avx512vnni", | ||
| "avx512vpopcntdq", | ||
| "gfni", // This is a deviation from LLVM, but it is more consistent with the Intel specification |
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Is this known by LLVM folks? Is there an llvm issue?
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I have opened llvm/llvm-project#135394, I will file an issue in GCC bugtracker too. Also cc @rust-lang/wg-llvm ig
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Ok this is an issue on LLVM side, and a PR has been sent to fix this. So should we add these target features now, or when the LLVM fix lands? Imo it is not a problem if we add it now, it will just stop implying vaes and vpclmulqdq after the fix
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The LLVM fix was merged and is scheduled to be backported to LLVM20
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Update this will be fixed after #140502 🎉
CryZe
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Apr 12, 2025
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r? compiler |
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r? @Amanieu |
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@bors r+ |
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Rollup of 7 pull requests Successful merges: - rust-lang#139675 (Add the AVX10 target features) - rust-lang#140286 (Check if format argument is identifier to avoid error err-emit) - rust-lang#140456 (Fix test simd/extract-insert-dyn on s390x) - rust-lang#140551 (Move some tests out of tests/ui) - rust-lang#140588 (Adjust some ui tests re. target-dependent errors) - rust-lang#140617 (Report the `unsafe_attr_outside_unsafe` lint at the closest node) - rust-lang#140626 (allow `#[rustfmt::skip]` in combination with `#[naked]`) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#139675 - sayantn:avx10, r=Amanieu Add the AVX10 target features Parent rust-lang#138843 Adds the `avx10_target_feature` feature gate, and `avx10.1` and `avx10.2` target features. It is confirmed that Intel is dropping AVX10/256 (see [this comment](rust-lang#111137 (comment))), so this should be safe to implement now. The LLVM fix for llvm/llvm-project#135394 was merged, and has been backported to LLVM20, and the patch has also been propagated to rustc in rust-lang#140502 `@rustbot` label O-x86_64 O-x86_32 A-target-feature A-SIMD
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[DO NOT MERGE] Check the perf impact of reverting rust-lang#139675 According to rust-lang#140633 (comment), the changes in rust-lang#139675 caused many measurable perf regressions. We can double-check that result by benchmarking a revert. --- This reverts commit ed7590f, reversing changes made to 3559e0a. r? ghost
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Add runtime detection for APX-F and AVX10 This was missed in rust-lang#139534 and rust-lang#139675 `@rustbot` label O-x86_64 O-x86_32 A-target-feature r? `@Amanieu`
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Add runtime detection for APX-F and AVX10 This was missed in rust-lang/rust#139534 and rust-lang/rust#139675 `@rustbot` label O-x86_64 O-x86_32 A-target-feature r? `@Amanieu`
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Add runtime detection for APX-F and AVX10 This was missed in rust-lang#139534 and rust-lang#139675 `@rustbot` label O-x86_64 O-x86_32 A-target-feature r? `@Amanieu`
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Parent #138843
Adds the
avx10_target_featurefeature gate, andavx10.1andavx10.2target features.It is confirmed that Intel is dropping AVX10/256 (see this comment), so this should be safe to implement now.
The LLVM fix for llvm/llvm-project#135394 was merged, and has been backported to LLVM20, and the patch has also been propagated to rustc in #140502
@rustbot label O-x86_64 O-x86_32 A-target-feature A-SIMD