1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-fre1" } */
       3  
       4  typedef int v2si __attribute__((vector_size(__SIZEOF_INT__ * 2)));
       5  int foo (int *a)
       6  {
       7    a[0] = 1;
       8    a[1] = 2;
       9    v2si x = *(v2si *)a;
      10    *(v2si *)&a[2] = x;
      11    return a[3];
      12  }
      13  
      14  /* { dg-final { scan-tree-dump "return 2;" "fre1" } } */