1  /* { dg-do run } */
       2  /* { dg-options "-O -ftree-parallelize-loops=4 -fno-tree-ch -fno-tree-dominator-opts" } */
       3  
       4  void abort(void);
       5  
       6  int d[1024], e[1024];
       7  
       8  int foo (void)
       9  {
      10    int s = 0;
      11    int i;
      12    for (i = 0; i < 1024; i++)
      13      s += d[i] - e[i];
      14    return s;
      15  }
      16  
      17  int main ()
      18  {
      19    int i;
      20    for (i = 0; i < 1024; i++)
      21      {
      22        d[i] = i * 2;
      23        e[i] = i;
      24      }
      25    if (foo () != 1023 * 1024 / 2)
      26      abort ();
      27    return 0;
      28  }