1  /* PR middle-end/38533 */
       2  
       3  #define A asm volatile ("" : "=r" (f) : "0" (0)); e |= f;
       4  #define B A A A A A A A A A A A
       5  #define C B B B B B B B B B B B
       6  
       7  int
       8  foo (void)
       9  {
      10    int e = 0, f;
      11    C C B B B B B A A A A A A
      12    return e;
      13  }
      14  
      15  int
      16  main (void)
      17  {
      18    if (foo ())
      19      __builtin_abort ();
      20    return 0;
      21  }