gcc/testsuite/gcc.dg/tree-ssa/bool-7.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 != 1)
   8     y = 0;
   9   else
  10     y = 1;
  11   return y;
  12 }
  13
  14 /* There should be no != 1. Fold changes x != 1 to ! x.  */
  15 /* { dg-final { scan-tree-dump-times "!= 1" 0 "optimized" } } */
  16