1  /* PR bootstrap/67030 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-Wtautological-compare" } */
       4  
       5  #define A a
       6  #define B A
       7  #define FOO (A > B)
       8  
       9  void
      10  fn1 (int a)
      11  {
      12    if (FOO);
      13  }