1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-fre1" } */
       3  
       4  void bar ();
       5  void foo (int n)
       6  {
       7    if (n > 0)
       8      {
       9        int j = 0;
      10        do
      11  	{
      12  	  if (n > 0)
      13  	    {
      14  	      int i = 0;
      15  	      do
      16  		{
      17  		  bar ();
      18  		}
      19  	      while (i < n);
      20  	    }
      21  	}
      22        while (j < n);
      23      }
      24  }
      25  
      26  /* { dg-final { scan-tree-dump-times "if" 1 "fre1" } } */