libcryfs/vendor/cryptopp/vendor_cryptopp/TestPrograms/test_x86_clmul.cpp

#include <emmintrin.h>
#include <wmmintrin.h>
int main(int argc, char* argv[])
{
    __m128i x = _mm_setzero_si128();
    x=_mm_clmulepi64_si128(x,x,0x11);
    return 0;
}