1  /* { dg-do compile } */
       2  
       3  int a[7];
       4  int b;
       5  
       6  void
       7  fn1 ()
       8  {
       9    for (; b; b++)
      10      a[b] = ((a[b] <= 0) == (a[0] != 0));
      11  }
      12  
      13  int
      14  main ()
      15  {
      16    return 0;
      17  }