1  /* PR c/68412 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-Wall -Wextra" } */
       4  
       5  int
       6  fn1 (int i)
       7  {
       8    return ({ i; }) == ({ i; }); /* { dg-warning "self-comparison always evaluates to true" } */
       9  }
      10  
      11  int
      12  fn2 (int i)
      13  {
      14    return ({ i + 1; }) != ({ i + 1; }); /* { dg-warning "self-comparison always evaluates to false" } */
      15  }