1  /* { dg-do compile } */
       2  /* { dg-additional-options "-ftree-vectorize" } */
       3  
       4  unsigned int a, c, d;
       5  double b;
       6  void e()
       7  {
       8    for (; d; d++)
       9      {
      10        double f;
      11        a = 2;
      12        for (; a; a++)
      13  	{
      14  	  c = b;
      15  	  b = f;
      16  	  f = c;
      17  	}
      18      }
      19  }