1; RUN: opt -passes=synthetic-counts-propagation -S < %s | FileCheck %s
2
3; CHECK-LABEL: define void @level1a(i32 %n)
4; CHECK: !prof ![[COUNT1:[0-9]+]]
5define void @level1a(i32 %n) {
6entry:
7  %cmp = icmp sgt i32 %n, 10
8  br i1 %cmp, label %exit, label %loop
9loop:
10  %i = phi i32 [%n, %entry], [%i1, %loop]
11  call void @level2a(i32 %n)
12  %i1 = sub i32 %i, 1
13  %cmp2 = icmp eq i32 %i1, 0
14  br i1 %cmp2, label %exit, label %loop, !prof !1
15exit:
16  ret void
17}
18
19; CHECK-LABEL: define void @level2a(i32 %n)
20; CHECK: !prof ![[COUNT2:[0-9]+]]
21define void @level2a(i32 %n) {
22  call void @level2b(i32 %n)
23  ret void
24}
25
26; CHECK-LABEL: define void @level2b(i32 %n)
27; CHECK: !prof ![[COUNT2]]
28define void @level2b(i32 %n) {
29entry:
30  call void @level2a(i32 %n)
31  %cmp = icmp eq i32 %n, 0
32  br i1 %cmp, label %then, label %else, !prof !2
33then:
34  call void @level3a(i32 %n)
35  br label %else
36else:
37  ret void
38}
39
40; CHECK-LABEL: define internal void @level3a(i32 %n)
41; CHECK: !prof ![[COUNT3:[0-9]+]]
42define internal void @level3a(i32 %n) {
43  ret void
44}
45
46!1 = !{!"branch_weights", i32 1, i32 99}
47!2 = !{!"branch_weights", i32 1, i32 1}
48; CHECK: ![[COUNT1]] = !{!"synthetic_function_entry_count", i64 10}
49; CHECK: ![[COUNT2]] = !{!"synthetic_function_entry_count", i64 520}
50; CHECK: ![[COUNT3]] = !{!"synthetic_function_entry_count", i64 260}
51