1  int a, b, c, d;
       2  
       3  static void
       4  foo (int *x)
       5  {
       6    c = 0;
       7    while (1)
       8      {
       9        if (*x)
      10  break;
      11        while (b)
      12  for (; c; c = 0);
      13        for (d = 18; d != 18; d++)
      14  if (c)
      15    {
      16      foo (x);
      17      return;
      18    }
      19      }
      20  }
      21  
      22  static void
      23  bar ()
      24  {
      25    foo (0);
      26    foo (0);
      27    for (;;)
      28      ;
      29  }
      30  
      31  baz ()
      32  {
      33    for (; a;)
      34      bar ();
      35  }