gcc/testsuite/gcc.dg/pr68412-2.c

   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 }