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