1  /* { dg-do run } */
       2  /* { dg-options "-O3" } */
       3  
       4  int a, b, c, d = 1;
       5  
       6  int
       7  main ()
       8  {
       9    int e = d;
      10    for (b = 0; b < 5; b++)
      11    {
      12      for (a = 0; a < 1; a++)
      13      {
      14        if (e)
      15  	break;
      16        for (c = 0; c < 1; c++)
      17  	;
      18      }
      19      e |= 1;
      20    }
      21    if (c)
      22      __builtin_abort();
      23    return 0;
      24  }