1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-rtl-cprop2" } */
       3  
       4  int f (int);
       5  unsigned int glob;
       6  
       7  void
       8  g ()
       9  {
      10    while (f (glob));
      11    glob = 5;
      12  }
      13  
      14  /* { dg-final { scan-rtl-dump "GLOBAL COPY-PROP" "cprop2" } } */