1__extension__ typedef __PTRDIFF_TYPE__ ptr_t;
2ptr_t *wm_TR;
3ptr_t *wm_HB;
4ptr_t *wm_SPB;
5
6ptr_t mem[100];
7
8f (mr_TR, mr_SPB, mr_HB, reg1, reg2)
9     ptr_t *mr_TR;
10     ptr_t *mr_SPB;
11     ptr_t *mr_HB;
12     ptr_t *reg1;
13     ptr_t *reg2;
14{
15  ptr_t *x = mr_TR;
16
17  for (;;)
18    {
19      if (reg1 < reg2)
20	goto out;
21      if ((ptr_t *) *reg1 < mr_HB && (ptr_t *) *reg1 >= mr_SPB)
22	*--mr_TR = *reg1;
23      reg1--;
24    }
25 out:
26
27  if (x != mr_TR)
28    abort ();
29}
30
31main ()
32{
33  mem[99] = (ptr_t) mem;
34  f (mem + 100, mem + 6, mem + 8, mem + 99, mem + 99);
35  exit (0);
36}
37