1 /* { dg-do compile } */
2 /* { dg-options "-O1 -fdump-tree-optimized" } */
3 
f(_Bool x)4 int f(_Bool x)
5 {
6   return (x == 0);
7 }
8 
9 /* There should be no == 0 which is produced by the front-end as
10    bool_var == 0 is the same as !bool_var. */
11 /* { dg-final { scan-tree-dump-times "== 0" 0 "optimized"} } */
12 /* { dg-final { scan-tree-dump-times "~x" 1 "optimized"} } */
13 
14