1  /* PR rtl-optimization/56466 */
       2  /* { dg-do compile } */
       3  /* { dg-options "-O2 -w -funroll-loops" } */
       4  
       5  int a, b, c;
       6  
       7  void
       8  f (void)
       9  {
      10    for (; b; b++)
      11      {
      12        if (0)
      13  	for (; b < 0; b++)
      14  	  if (1 % 0)
      15  	    {
      16  	      while (1)
      17  		{
      18  		  a = 0;
      19  		lbl1:
      20  		  c++;
      21  		}
      22  	    lbl2:
      23  	      ;
      24  	    }
      25  
      26        goto lbl1;
      27      }
      28  
      29    a = 0;
      30    goto lbl2;
      31  }