env/opencv-4.8.0/cmake/checks/cpu_avx512icl.cpp

#if defined __AVX512__ || defined __AVX512F__
#include <immintrin.h>
void test()
{
    __m512i a, b, c;
    a = _mm512_popcnt_epi8(a);                   // BITALG
    a = _mm512_shrdv_epi64(a, b, c);             // VBMI2
    a = _mm512_popcnt_epi64(a);                  // VPOPCNTDQ
    a = _mm512_dpwssd_epi32(a, b, c);            // VNNI
}
#else
#error "AVX512-ICL is not supported"
#endif
int main() { return 0; }