1  /* PR tree-optimization/91665 */
       2  /* { dg-do compile } */
       3  /* { dg-additional-options "-Ofast" } */
       4  
       5  short int v;
       6  
       7  void
       8  foo (short int x, short int y)
       9  {
      10    short int *p = &v;
      11  
      12    x = 1;
      13    while (x != 0)
      14      x += ++y || (*p = x);
      15  }