gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-9.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fno-tree-dominator-opts -fdump-tree-fre-stats" } */
   3 int
   4 foo (unsigned long a)
   5 {
   6   int b = __builtin_clzl (a);
   7   int c = __builtin_clzl (a);
   8   if (b == c)
   9     return 1;
  10   return 0;
  11 }
  12 /* { dg-final { scan-tree-dump-times "Eliminated: 1" 1 "fre"} } */
  13 /* { dg-final { cleanup-tree-dump "fre" } } */