1 /* This test was causing an ICE in DCE because we were allowing void *
2    pointers to have a memory tag, which we were copying when doing copy
3    propagation.  Since void * can never be de-referenced, its memory tag
4    was never renamed.  */
5 
6 /* { dg-do compile } */
7 /* { dg-options "-O -ftree-dominator-opts -std=gnu89" } */
8 
9 typedef __SIZE_TYPE__ size_t;
10 typedef union tree_node *tree;
11 struct operands_d
12 {
13   tree *def_op;
14 };
15 
16 void
gt_ggc_mx_operands_d(void * x_p)17 gt_ggc_mx_operands_d (void *x_p)
18 {
19   struct operands_d *const x = (struct operands_d *) x_p;
20   if ((*x).def_op != ((void *) 0))
21     {
22       size_t i0;
23       do
24 	{
25 	  const void *const a__ = ((*x).def_op);
26 	  if (a__ != ((void *) 0) && a__ != (void *) 1)
27 	    ggc_set_mark (a__);
28 	}
29       while (0);
30       for (i0 = 0; i0 < (size_t) (1); i0++)
31 	{
32 	  do
33 	    {
34 	      if ((void *) (*x).def_op[i0] != ((void *) 0))
35 		gt_ggc_mx_lang_tree_node ((*x).def_op[i0]);
36 	    }
37 	  while (0);
38 	}
39     }
40 }
41