BUG, SIMD: use scalar cmul on bad Apple clang x86_64#24828
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charris merged 2 commits intonumpy:mainfrom Sep 28, 2023
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BUG, SIMD: use scalar cmul on bad Apple clang x86_64#24828charris merged 2 commits intonumpy:mainfrom
charris merged 2 commits intonumpy:mainfrom
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Apple clang 14.0.0 outputs code with non-deterministic behaviour for the AVX2-accelerated `multiply` ufunc on `complex64` and `complex128` for x86_64 on macOS with AVX2 enabled. This bug is fixed by Apple clang 14.0.3, but 14.0.0 is still commonly the available toolchain on CI images. In order to not output unsound code, this simply skips the SIMD version of the ufunc when using an affected compiler.
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* BUG, SIMD: use scalar cmul on bad Apple clang x86_64 Apple clang 14.0.0 outputs code with non-deterministic behaviour for the AVX2-accelerated `multiply` ufunc on `complex64` and `complex128` for x86_64 on macOS with AVX2 enabled. This bug is fixed by Apple clang 14.0.3, but 14.0.0 is still commonly the available toolchain on CI images. In order to not output unsound code, this simply skips the SIMD version of the ufunc when using an affected compiler. * MAINT: Formatting cleanup. --------- Co-authored-by: Charles Harris <[email protected]>
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BUG, SIMD: use scalar cmul on bad Apple clang x86_64 (#24828)
charris
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Nov 11, 2023
* BUG, SIMD: use scalar cmul on bad Apple clang x86_64 Apple clang 14.0.0 outputs code with non-deterministic behaviour for the AVX2-accelerated `multiply` ufunc on `complex64` and `complex128` for x86_64 on macOS with AVX2 enabled. This bug is fixed by Apple clang 14.0.3, but 14.0.0 is still commonly the available toolchain on CI images. In order to not output unsound code, this simply skips the SIMD version of the ufunc when using an affected compiler. * MAINT: Formatting cleanup. --------- Co-authored-by: Charles Harris <[email protected]>
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Apple clang 14.0.0 outputs code with non-deterministic behaviour for the AVX2-accelerated
multiplyufunc oncomplex64andcomplex128for x86_64 on macOS with AVX2 enabled. This bug is fixed by Apple clang 14.0.3, but 14.0.0 is still commonly the available toolchain on CI images.In order to not output unsound code, this simply skips the SIMD version of the ufunc when using an affected compiler.
Fix #24000.