1  /* { dg-do compile } */
       2  /* { dg-require-effective-target vect_double } */
       3  /* { dg-require-effective-target vect_perm } */
       4  /* { dg-additional-options "-fdump-tree-cddce1 -fno-tree-fre" } */
       5  
       6  typedef double vec __attribute__((vector_size (2 * sizeof (double))));
       7  void f (vec *px, vec *y, vec *z)
       8  {
       9    vec x = *px;
      10    vec t1 = { x[1], x[0] };
      11    vec t2 = { x[0], x[1] };
      12    *y = t1;
      13    *z = t2;
      14  }
      15  
      16  /* Optimization in forwprop1, cleanup in cddce1.  */
      17  
      18  /* { dg-final { scan-tree-dump-times "VEC_PERM_EXPR" 1 "cddce1" } } */
      19  /* { dg-final { scan-tree-dump-not "BIT_FIELD_REF" "cddce1" } } */