1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-optimized" } */
       3  
       4  void f (void*);
       5  
       6  void g (char *a)
       7  {
       8    __builtin_memset (a, 0, 8);
       9    __builtin_memset (a, 0, 8);
      10  
      11    f (a);
      12  }
      13  
      14  void h (char *a)
      15  {
      16    __builtin_memset (a, 0, 8);
      17    __builtin_memset (a, 0, 7);
      18  
      19    f (a);
      20  }
      21  
      22  /* { dg-final { scan-tree-dump-times "__builtin_memset" 2 "optimized" } } */