1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -msse3 -mfpmath=sse -mtune-ctrl=v2df_reduction_prefer_haddpd" } */
       3  
       4  #include <x86intrin.h>
       5  
       6  double f (__m128d p)
       7  {
       8    return p[0] - p[1];
       9  }
      10  
      11  double g1 (__m128d p)
      12  {
      13    return p[0] + p[1];
      14  }
      15  
      16  double g2 (__m128d p)
      17  {
      18    return p[1] + p[0];
      19  }
      20  
      21  __m128d h (__m128d p, __m128d q)
      22  {
      23    __m128d r = { p[0] - p[1], q[0] - q[1] };
      24    return r;
      25  }
      26  
      27  __m128d i1 (__m128d p, __m128d q)
      28  {
      29    __m128d r = { p[0] + p[1], q[0] + q[1] };
      30    return r;
      31  }
      32  
      33  __m128d i2 (__m128d p, __m128d q)
      34  {
      35    __m128d r = { p[0] + p[1], q[1] + q[0] };
      36    return r;
      37  }
      38  
      39  __m128d i3 (__m128d p, __m128d q)
      40  {
      41    __m128d r = { p[1] + p[0], q[0] + q[1] };
      42    return r;
      43  }
      44  
      45  __m128d i4 (__m128d p, __m128d q)
      46  {
      47    __m128d r = { p[1] + p[0], q[1] + q[0] };
      48    return r;
      49  }
      50  
      51  /* { dg-final { scan-assembler-times "hsubpd" 2 } } */
      52  /* { dg-final { scan-assembler-times "haddpd" 6 } } */
      53  /* { dg-final { scan-assembler-not "unpck" } } */