1 /* { dg-do compile } */
2 /* { dg-options "-O1 -fdump-tree-dom2" } */
3 
4 
5 struct rtx_def;
6 typedef struct rtx_def *rtx;
7 struct rtvec_def;
8 typedef struct rtvec_def *rtvec;
9 union tree_node;
10 typedef union tree_node *tree;
11 typedef struct mem_attrs
12 {
13   long alias;
14 }
15 mem_attrs;
16 union rtunion_def
17 {
18   mem_attrs *rtmem;
19 };
20 typedef union rtunion_def rtunion;
21 struct rtx_def
22 {
23   int code;
24   rtunion fld[1];
25 };
26 struct tree_decl
27 {
28   rtx rtl;
29 };
30 union tree_node
31 {
32   struct tree_decl decl;
33 };
34 int make_decl_rtl (tree, void *);
35 long
get_alias_set(t)36 get_alias_set (t)
37      tree t;
38 {
39   if (t->decl.rtl != (void *) 0)
40     return (((t->decl.rtl->fld[1]).rtmem) ==
41             0 ? 0
42             : ((((t->decl.
43                   rtl ? 0 : (make_decl_rtl (t, ((void *) 0)),
44                              t->decl.rtl)))->fld[1]).rtmem)->alias);
45 }
46 
47 /* The calls to make_decl_rtl should be eliminated.  */
48 /* { dg-final { scan-tree-dump-not "make_decl_rtl \\(\\)" "dom2" } } */
49 
50 /* There should be two IF conditionals.  */
51 /* { dg-final { scan-tree-dump-times "if " 2 "dom2"} } */
52 
53 /* There should be one load of decl.rtl.  */
54 /* { dg-final { scan-tree-dump-times "decl\\.rtl" 1 "dom2"} } */
55 
56 /* There should be two loads of rtmem.  */
57 /* { dg-final { scan-tree-dump-times "rtmem" 2 "dom2"} } */
58 
59 /* There should be one load of alias.  */
60 /* { dg-final { scan-tree-dump-times "->alias" 1 "dom2"} } */
61 
62