1  /* { dg-do compile } */ 
       2  /* { dg-options "-O2 -fdump-tree-pre-stats" } */
       3  /* We can't eliminate the *p load here in any sane way, as eshup8 may 
       4     change it.  */
       5  
       6  void eshup8 (unsigned short *);
       7  
       8  void
       9  enormlz (x)
      10       unsigned short x[];
      11  {
      12    register unsigned short *p;
      13    p = &x[2];
      14    while ((*p & 0xff00) == 0)
      15      {
      16        eshup8 (x);
      17      }
      18  }
      19  /* { dg-final { scan-tree-dump-not "Eliminated:" "pre"} } */