1-- { dg-do compile }
2-- { dg-options "-fdump-tree-gimple" }
3
4with VFA1_Pkg; use VFA1_Pkg;
5
6procedure VFA1_3 is
7
8  Temp : Short_Integer;
9
10  function F (I : Short_Integer) return Short_Integer is
11  begin
12    return I;
13  end;
14
15  function F2 return Short_Integer is
16  begin
17    return Short_Integer(Buffer1.A);
18  end;
19
20  procedure P3 (I : out Short_Integer) is
21  begin
22    null;
23  end;
24
25begin
26
27  Temp := Buffer1.A;
28  Buffer1.B := Temp;
29
30  Temp := Buffer2.A;
31  Buffer2.B := Temp;
32
33  Temp := Buffer1.A + Buffer2.B;
34
35  if Buffer1.A /= Buffer2.B then
36    raise Program_Error;
37  end if;
38
39  Temp := F(Buffer1.A);
40  Buffer2.B := F(Temp);
41
42  Temp := F(Buffer2.B);
43  Buffer1.A := F(Temp);
44
45  Temp := F2;
46  P3 (Buffer2.B);
47
48end;
49
50-- { dg-final { scan-tree-dump-times "atomic_load\[^\n\r\]*&vfa1_pkg__buffer1" 7 "gimple"} }
51-- { dg-final { scan-tree-dump-times "atomic_load\[^\n\r\]*&vfa1_pkg__buffer2" 7 "gimple"} }
52-- { dg-final { scan-tree-dump-times "atomic_load\[^\n\r\]*&temp" 0 "gimple"} }
53
54-- { dg-final { scan-tree-dump-times "atomic_store\[^\n\r\]*&vfa1_pkg__buffer1" 2 "gimple"} }
55-- { dg-final { scan-tree-dump-times "atomic_store\[^\n\r\]*&vfa1_pkg__buffer2" 3 "gimple"} }
56-- { dg-final { scan-tree-dump-times "atomic_store\[^\n\r\]*&temp" 0 "gimple"} }
57
58