1  /* PR tree-optimization/101189  */
       2  
       3  static int a, b;
       4  int main() {
       5    int d = 0, e, f = 5;
       6    if (a)
       7      f = 0;
       8    for (; f < 4; f++)
       9      ;
      10    e = f ^ -f;
      11    e && d;
      12    if (!e)
      13      e || b;
      14    return 0;
      15  }