1  /* PR c/37106 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O3" } */
       4  /* { dg-options "-O3 -fpic" { target fpic } } */
       5  
       6  #define SIZE 256
       7  float a[SIZE], b[SIZE], c[SIZE];
       8  
       9  void non_opt3 (void) __attribute__((__optimize__(1)));
      10  
      11  void
      12  not_opt3 (void)
      13  {
      14    int i;
      15  
      16    for (i = 0; i < SIZE; i++)
      17      a[i] = b[i] - c[i];
      18  }
      19  
      20  void
      21  opt3 (void)
      22  {
      23    int i;
      24  
      25    for (i = 0; i < SIZE; i++)
      26      a[i] = b[i] + c[i];
      27  }