1  /* { dg-do run } */
       2  /* { dg-require-effective-target sse3 } */
       3  /* { dg-options "-O3 -msse3" } */
       4  
       5  #ifndef CHECK_H
       6  #define CHECK_H "sse3-check.h"
       7  #endif
       8  
       9  #ifndef TEST
      10  #define TEST sse3_test
      11  #endif
      12  
      13  #include CHECK_H
      14  
      15  double a[2], b[2], c[2];
      16  
      17  void __attribute__((noipa))
      18  foo ()
      19  {
      20    /* When we want to use addsubpd we have to keep permuting both
      21       loads, if instead we blend the result of an add and a sub we
      22       can combine the blend with the permute.  Both are similar in cost,
      23       verify we did not wrongly apply both.  */
      24    double tem0 = a[1] - b[1];
      25    double tem1 = a[0] + b[0];
      26    c[0] = tem0;
      27    c[1] = tem1;
      28  }
      29  
      30  static void
      31  TEST (void)
      32  {
      33    a[0] = 1.; a[1] = 2.;
      34    b[0] = 2.; b[1] = 4.;
      35    foo ();
      36    if (c[0] != -2. || c[1] != 3.)
      37      __builtin_abort ();
      38  }