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Windows Avx macro tweak #776

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merged 1 commit into from
Sep 20, 2024
Merged

Windows Avx macro tweak #776

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5 changes: 4 additions & 1 deletion modules/c++/sys/source/OSWin32.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -357,11 +357,14 @@ void sys::OSWin32::getAvailableCPUs(std::vector<int>& /*physicalCPUs*/,
sys::SIMDInstructionSet sys::OSWin32::getSIMDInstructionSet() const
{
// https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-isprocessorfeaturepresent
#if _MSC_VER >= 1920
// (these require Windows SDK (19041) or later)
#ifdef PF_AVX512F_INSTRUCTIONS_AVAILABLE
if (IsProcessorFeaturePresent(PF_AVX512F_INSTRUCTIONS_AVAILABLE))
{
return SIMDInstructionSet::AVX512F;
}
#endif
#ifdef PF_AVX2_INSTRUCTIONS_AVAILABLE
if (IsProcessorFeaturePresent(PF_AVX2_INSTRUCTIONS_AVAILABLE))
{
return SIMDInstructionSet::AVX2;
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