1; RUN: opt < %s -basicaa -functionattrs -rpo-functionattrs -S | FileCheck %s
2; RUN: opt < %s -aa-pipeline=basic-aa -passes='cgscc(function-attrs),rpo-functionattrs' -S | FileCheck %s
3
4; CHECK: define i32 @leaf() #0
5define i32 @leaf() {
6  ret i32 1
7}
8
9; CHECK: define i32 @self_rec() #1
10define i32 @self_rec() {
11  %a = call i32 @self_rec()
12  ret i32 4
13}
14
15; CHECK: define i32 @indirect_rec() #1
16define i32 @indirect_rec() {
17  %a = call i32 @indirect_rec2()
18  ret i32 %a
19}
20; CHECK: define i32 @indirect_rec2() #1
21define i32 @indirect_rec2() {
22  %a = call i32 @indirect_rec()
23  ret i32 %a
24}
25
26; CHECK: define i32 @extern() #1
27define i32 @extern() {
28  %a = call i32 @k()
29  ret i32 %a
30}
31declare i32 @k() readnone
32
33; CHECK: define void @intrinsic(i8* nocapture %dest, i8* nocapture readonly %src, i32 %len) {
34define void @intrinsic(i8* %dest, i8* %src, i32 %len) {
35  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 %len, i32 1, i1 false)
36  ret void
37}
38declare void @llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)
39
40; CHECK: define internal i32 @called_by_norecurse() #0
41define internal i32 @called_by_norecurse() {
42  %a = call i32 @k()
43  ret i32 %a
44}
45define void @m() norecurse {
46  %a = call i32 @called_by_norecurse()
47  ret void
48}
49
50; CHECK: define internal i32 @called_by_norecurse_indirectly() #0
51define internal i32 @called_by_norecurse_indirectly() {
52  %a = call i32 @k()
53  ret i32 %a
54}
55define internal void @o() {
56  %a = call i32 @called_by_norecurse_indirectly()
57  ret void
58}
59define void @p() norecurse {
60  call void @o()
61  ret void
62}
63
64; CHECK: attributes #0 = { norecurse readnone }
65; CHECK: attributes #1 = { readnone }
66