gcc/testsuite/gcc.dg/Wno-all.c

   1 /* PR 30437: Test negative of -Wall
   2    Don't change this without changing Wall.c as well.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-Wall -Wno-all" } */
   5
   6 void foo()
   7 {
   8   int a;
   9   5 * (a == 1) | (a == 2);  /* { dg-bogus "no effect" "no effect" } */
  10 }
  11