Current File : //opt/cloudlinux/venv/lib/python3.11/site-packages/numpy/distutils/checks/cpu_fma3.c
#if defined(DETECT_FEATURES) && defined(__INTEL_COMPILER)
/*
* Unlike GCC and CLANG, Intel Compiler exposes all supported intrinsics,
* whether or not the build options for those features are specified.
* Therefore, we must test #definitions of CPU features when option native/host
* is enabled via `--cpu-baseline` or through env var `CFLAGS` otherwise
* the test will be broken and leads to enable all possible features.
*/
#if !defined(__FMA__) && !defined(__AVX2__)
#error "HOST/ARCH doesn't support FMA3"
#endif
#endif
#include <xmmintrin.h>
#include <immintrin.h>
int main(int argc, char **argv)
{
__m256 a = _mm256_loadu_ps((const float*)argv[argc-1]);
a = _mm256_fmadd_ps(a, a, a);
return (int)_mm_cvtss_f32(_mm256_castps256_ps128(a));
}
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