1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fno-strict-overflow -fdump-tree-ivcanon-details" } */
       3  
       4  void bar();
       5  void foo(char *dst)
       6  {
       7    char *const end = dst;
       8    do {
       9      bar();
      10      dst += 2;
      11    } while (dst < end);
      12  }
      13  
      14  /* { dg-final { scan-tree-dump " zero if " "ivcanon" } } */