int fib(int x)
{
  int result1;
  int result2;
  int i;
  int result;

  i = 0;
  result2 = 1;
  result1 = 0;
__L_1:  
  if ((i < x))
    goto __L_2;
__L_3:  
  return (result1);
__L_2:  
  result = (result1 + result2);
  i = (i + 1);
  result2 = result1;
  result1 = result;
  goto __L_1;
}