1  /* PR rtl-optimization/48141 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O" } */
       4  
       5  #define A i = 0;
       6  #define B A A A A A A A A A A
       7  #define C B B B B B B B B B B
       8  #define D C C C C C C C C C C
       9  #define E D D D D D D D D D D
      10  
      11  int
      12  foo (void)
      13  {
      14    volatile int i = 0;
      15    E E E E E E E E E E E
      16    return 0;
      17  }