1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/* { dg-do compile } */
/* { dg-options "-O1 -fdump-tree-dom2" } */
extern void abort (void);
extern void blah (void);
union tree_node;
typedef union tree_node *tree;
struct tree_vec
{
int length;
tree a[1];
};
struct tree_type
{
tree binfo;
};
union tree_node
{
struct tree_type type;
struct tree_vec vec;
};
void
record_component_aliases (type)
tree type;
{
int i;
if (4 >= type->type.binfo->vec.length)
abort ();
for (; i < ((
{
const tree __t = type->type.binfo;
if (4 >= __t->vec.length)
abort (); type->type.binfo->vec.a[4];}
)->vec.length);)
{
if (4 >= type->type.binfo->vec.length)
abort ();
blah ();
}
}
/* The call to blah can not be eliminated. */
/* { dg-final { scan-tree-dump-times "blah \\(\\)" 1 "dom2" } } */
/* There should be three IF conditionals. */
/* { dg-final { scan-tree-dump-times "if " 3 "dom2"} } */
/* There should be two loads of type.binfo. */
/* { dg-final { scan-tree-dump-times "type\\.binfo" 2 "dom2"} } */
/* There should be three loads of vec.length. */
/* { dg-final { scan-tree-dump-times "vec.length" 3 "dom2"} } */
|
