opencv/cmake/checks/cpu_avx512knl.cpp

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#if defined __AVX512__ || defined __AVX512F__
#include <immintrin.h>
void test()
{
int* base;
__m512i idx;
__mmask16 m16;
__m512 f;
_mm512_mask_prefetch_i32gather_ps(idx, m16, base, 1, _MM_HINT_T1);
f = _mm512_rsqrt28_ps(f);
}
#else
#error "AVX512-KNL is not supported"
#endif
int main() { return 0; }