1 /* { dg-do compile } */
2 /* { dg-options "-O1 -fdump-tree-optimized" } */
3 
4 void link_error();
5 
6 
7 struct State {
8     int p0, p1, p2;
StateState9     inline State(){p0=0;p1=0;p2=0;}
StateState10     inline State(const State &s) {
11 	p0 = s.p0;
12 	p1 = s.p1;
13 	p2 = s.p2;
14     }
15 
16     inline void operator =(const State &s) {
17 	p0 = s.p0;
18 	p1 = s.p1;
19 	p2 = s.p2;
20     }
21 
stepState22     inline void step(void) {
23 	p0 = p1+p2;
24 	p1 = p0*p1+p2;
25 	p2 = p0-p2;
26     }
27 };
28 
29 
iterate_ok(State & inS1,State & inS2,unsigned int n)30 inline void iterate_ok(State &inS1, State &inS2, unsigned int n)
31 {
32     State s1 = inS1;
33     for (unsigned int i = 0; i < n; i++) {
34 	s1.step();
35     }
36     inS1 = s1;
37 }
38 
temp()39 void temp()
40 {
41   State s1;
42   s1.p0 = 0;
43   s1.p1 = 0;
44   s1.p2 = 0;
45   State s2;
46   s2.p0 = 0;
47   s2.p1 = 0;
48   s2.p2 = 0;
49   iterate_ok (s1, s2, 1);
50   if (s1.p0)
51    link_error();
52   if (s1.p0)
53    link_error();
54   if (s1.p0)
55    link_error();
56 }
57 
58 /* We should have removed the casts from pointers to references and caused SRA to happen.  */
59 
60 /* { dg-final { scan-tree-dump-times "link_error" 0 "optimized"} } */
61 /* { dg-final { cleanup-tree-dump "optimized" } } */
62