1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -fdump-tree-dom2" } */
       3     
       4  extern void abort (void);
       5  extern void oof (int);
       6  
       7  int
       8  com(int *blah)
       9  {
      10    int z = *blah;
      11    if (z == 256)
      12      {
      13        oof (z);
      14        abort ();
      15      }
      16    return *blah;
      17  }
      18  
      19  /* There should be precisely one load of blah.  If there is
      20     more than one, then the dominator optimizations failed.  */
      21  /* { dg-final { scan-tree-dump-times "\\*blah" 1 "dom2"} } */
      22