1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-fre1" } */
       3  
       4  unsigned int a, *b;
       5  unsigned short c;
       6  int d;
       7  
       8  void 
       9  fn1 ()
      10  {
      11    b = &d;
      12    *b = c = a; 
      13    *b = d;
      14  }
      15  
      16  /* We should remove all loads but that from a.  */
      17  /* { dg-final { scan-tree-dump-not "= \[dbc\];" "fre1" } } */