1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -fdump-tree-dce3" } */
       3  
       4  int t() __attribute__ ((const));
       5  void
       6  q()
       7  {
       8    int i = t();
       9    if (!i)
      10      i = t();
      11  }
      12  /* There should be no IF conditionals.  */
      13  /* { dg-final { scan-tree-dump-times "if " 0 "dce3"} } */