1  /* PR c/19449 */
       2  
       3  extern void abort (void);
       4  
       5  int y;
       6  int z = __builtin_choose_expr (!__builtin_constant_p (y), 3, 4);
       7  
       8  int
       9  foo (int x)
      10  {
      11    return __builtin_choose_expr (!__builtin_constant_p (x), 3, y++);
      12  }
      13  
      14  int
      15  main ()
      16  {
      17    if (y || z != 3 || foo (4) != 3)
      18      abort ();
      19    return 0;
      20  }