1  /* { dg-do compile } */ 
       2  /* { dg-options "-O2 -fno-tree-dominator-opts -fdump-tree-fre1-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 "return 0;" 0 "fre1"} } */