cmake HAVE_AVX512VNNI_INTRIN examples

InsightSoftwareConsortium/ITK Modules/ThirdParty/ZLIB/src/itkzlib-ng/cmake/detect-intrinsics.cmake :138

check_c_source_compiles(
        "#include <immintrin.h>
        int main(void) {
            const __m512i z512 = _mm512_setzero_si512();
            const __m256i z256 = _mm256_setzero_si256();
            volatile __m512i r512 = _mm512_dpbusd_epi32(z512, z512, z512);
            volatile __m256i r256 = _mm256_dpbusd_epi32(z256, z256, z256);
            (void)r512;
            (void)r256;
            return 0;
        }"
        HAVE_AVX512VNNI_INTRIN
    )