gcc/testsuite/gcc.dg/tree-ssa/bool-10.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-optimized" } */
   3
   4 int f(_Bool x)
   5 {
   6   return (x != 1);
   7 }
   8
   9 /* There should be no != 1 which is produced by the front-end as
  10    bool_var != 1 is the same as !bool_var. */
  11 /* { dg-final { scan-tree-dump-times "!= 1" 0 "optimized"} } */
  12 /* { dg-final { scan-tree-dump-times "~x" 1 "optimized"} } */
  13