1  /* { dg-do compile } */
       2  /* { dg-additional-options "-O3" } */
       3  
       4  int a;
       5  long b;
       6  extern int c[], d[];
       7  extern _Bool e[];
       8  void f() {
       9    if (a)
      10      ;
      11    for (;;) {
      12      for (int g = 2; g; g = a)
      13        d[g] = 0;
      14      for (int h = 1; h < 13; h++)
      15        e[h] = b ? (short)c[4 + h - 1] : c[4 + h - 1];
      16    }
      17  }