gcc/testsuite/gcc.dg/tree-ssa/bool-3.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-optimized" } */
   3
   4 int f(_Bool x)
   5 {
   6   int y;
   7   if (!x)
   8     y = 0;
   9   else
  10     y = 1;
  11   return y;
  12 }
  13
  14 /* There should be no == 0.  Though PHI-OPT or invert_truth does not
  15    fold its tree forwprop is able to clean up the mess.  */
  16 /* { dg-final { scan-tree-dump-times "== 0" 0 "optimized" } } */
  17
  18 /* { dg-final { cleanup-tree-dump "optimized" } } */