1  /* PR tree-optimization/48717 */
       2  
       3  extern void abort (void);
       4  
       5  int v = 1, w;
       6  
       7  unsigned short
       8  foo (unsigned short x, unsigned short y)
       9  {
      10    return x + y;
      11  }
      12  
      13  void
      14  bar (void)
      15  {
      16    v = foo (~w, w);
      17  }
      18  
      19  int
      20  main ()
      21  {
      22    bar ();
      23    if (v != (unsigned short) -1)
      24      abort ();
      25    return 0;
      26  }