1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-strlen" } */
       3  
       4  void f (unsigned);
       5  
       6  void f3 (void)
       7  {
       8    char s[] = "1234";
       9  
      10    f (__builtin_strlen (s));
      11    f (__builtin_strlen (s));
      12    f (__builtin_strlen (s));
      13  }
      14  
      15  /* { dg-final { scan-tree-dump-times "strlen" 0 "strlen1" } } */