1  /* { dg-do compile } */
       2  
       3  unsigned f(void)
       4  {
       5    unsigned a;
       6    int b, c, d, e;
       7  
       8    for(c = 27; c < 40; c++)
       9      b |= d |= b;
      10  
      11    if(b)
      12      a = e;
      13  
      14    return a;
      15  }