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Re-enable BF16 on x86 in debug builds with Clang 22 or later #2781

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Merged
copybara-service merged 2 commits into from
Oct 24, 2025
Merged

Re-enable BF16 on x86 in debug builds with Clang 22 or later #2781

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743d073
Re-enabled BF16 on x86 in debug builds with Clang 22 or later
johnplatts Oct 24, 2025
b853b76
Adjusted hwy/base.h to enable BF16 on x86 with Clang 22.1.1 or later
johnplatts Oct 24, 2025
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6 changes: 3 additions & 3 deletions hwy/base.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1744,9 +1744,9 @@ HWY_F16_CONSTEXPR inline std::partial_ordering operator<=>(
// bf16 <-> f32 in convert_test results in 0x2525 for 1.0 instead of 0x3f80.
// Reported at https://github.com/llvm/llvm-project/issues/151692.
#ifndef HWY_SSE2_HAVE_SCALAR_BF16_TYPE
#if HWY_ARCH_X86 && defined(__SSE2__) && \
((HWY_COMPILER_CLANG >= 1700 && !HWY_COMPILER_CLANGCL && \
!HWY_IS_DEBUG_BUILD) || \
#if HWY_ARCH_X86 && defined(__SSE2__) && \
((HWY_COMPILER_CLANG >= 1700 && !HWY_COMPILER_CLANGCL && \
(!HWY_IS_DEBUG_BUILD || HWY_COMPILER3_CLANG >= 220101)) || \
HWY_COMPILER_GCC_ACTUAL >= 1300)
#define HWY_SSE2_HAVE_SCALAR_BF16_TYPE 1
#else
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