cmake HAVE_SSE4_1_EXTENSIONS examples

chsl/PLADE code/3rd_party/pcl-1.8.1/cmake/pcl_find_sse.cmake :80 

check_cxx_source_runs("
        #include <smmintrin.h>
        int main ()
        {
          __m128 a, b;
          float vals[4] = {1, 2, 3, 4};
          const int mask = 123;
          a = _mm_loadu_ps (vals);
          b = a;
          b = _mm_dp_ps (a, a, mask);
          _mm_storeu_ps (vals,b);
          return (0);
        }"
        HAVE_SSE4_1_EXTENSIONS)

chsl/PLADE code/3rd_party/pcl-1.8.1/cmake/pcl_find_sse.cmake :173 

elseif(HAVE_SSE4_1_EXTENSIONS)

steineggerlab/foldmason lib/foldseek/lib/mmseqs/cmake/CheckSSEFeatures.cmake :45 

check_cxx_source_runs("
      #include <smmintrin.h>
      int main ()
      {
        volatile __m128 a, b;
        float vals[4] = {1, 2, 3, 4};
        const int mask = 123;
        a = _mm_loadu_ps (vals);
        b = a;
        b = _mm_dp_ps (a, a, 4);
        _mm_storeu_ps (vals,b);
        return (0);
      }"
      HAVE_SSE4_1_EXTENSIONS)

steineggerlab/foldmason lib/foldseek/lib/mmseqs/cmake/CheckSSEFeatures.cmake :116 

elseif(HAVE_SSE4_1_EXTENSIONS)