text: /* PR tree-optimization/21030
     VRP used to create invalid ranges where VR->MIN is greater than
     VR->MAX.  */
  
  void
  foo (int unit)
  {
    int i;
  
    for (i = 0; unit; i++, unit--)
      {
        if (i >= 0)
  	{
  	  int j = i;
  	  while (j)
  	    j--;
  	}
      }
  }
  