1; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/warm-inline-instance.prof -S | FileCheck %s
2; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/warm-inline-instance.prof -S | FileCheck %s
3
4@.str = private unnamed_addr constant [11 x i8] c"sum is %d\0A\00", align 1
5
6; Function Attrs: nounwind uwtable
7define i32 @foo(i32 %x, i32 %y) #0 !dbg !4 {
8entry:
9  %x.addr = alloca i32, align 4
10  %y.addr = alloca i32, align 4
11  store i32 %x, i32* %x.addr, align 4
12  store i32 %y, i32* %y.addr, align 4
13  %t0 = load i32, i32* %x.addr, align 4, !dbg !11
14  %t1 = load i32, i32* %y.addr, align 4, !dbg !11
15  %add = add nsw i32 %t0, %t1, !dbg !11
16  ret i32 %add, !dbg !11
17}
18
19define i32 @goo(i32 %x, i32 %y) #0 {
20entry:
21  %x.addr = alloca i32, align 4
22  %y.addr = alloca i32, align 4
23  store i32 %x, i32* %x.addr, align 4
24  store i32 %y, i32* %y.addr, align 4
25  %t0 = load i32, i32* %x.addr, align 4, !dbg !11
26  %t1 = load i32, i32* %y.addr, align 4, !dbg !11
27  %add = add nsw i32 %t0, %t1, !dbg !11
28  ret i32 %add, !dbg !11
29}
30
31; Function Attrs: uwtable
32define i32 @main() #0 !dbg !7 {
33entry:
34  %retval = alloca i32, align 4
35  %s = alloca i32, align 4
36  %i = alloca i32, align 4
37  store i32 0, i32* %retval
38  store i32 0, i32* %i, align 4, !dbg !12
39  br label %while.cond, !dbg !13
40
41while.cond:                                       ; preds = %if.end, %entry
42  %t0 = load i32, i32* %i, align 4, !dbg !14
43  %inc = add nsw i32 %t0, 1, !dbg !14
44  store i32 %inc, i32* %i, align 4, !dbg !14
45  %cmp = icmp slt i32 %t0, 400000000, !dbg !14
46  br i1 %cmp, label %while.body, label %while.end, !dbg !14
47
48while.body:                                       ; preds = %while.cond
49  %t1 = load i32, i32* %i, align 4, !dbg !16
50  %cmp1 = icmp ne i32 %t1, 100, !dbg !16
51  br i1 %cmp1, label %if.then, label %if.else, !dbg !16
52
53if.then:                                          ; preds = %while.body
54  %t2 = load i32, i32* %i, align 4, !dbg !18
55  %t3 = load i32, i32* %s, align 4, !dbg !18
56; Although the ratio of total samples of @foo vs total samples of @main is
57; small, since the total samples count is larger than hot cutoff computed by
58; ProfileSummaryInfo, we will still regard the callsite of foo as hot and
59; early inlining will inline it.
60; CHECK-LABEL: @main(
61; CHECK-NOT: call i32 @foo(i32 %t2, i32 %t3)
62  %call1 = call i32 @foo(i32 %t2, i32 %t3), !dbg !18
63  store i32 %call1, i32* %s, align 4, !dbg !18
64  br label %if.end, !dbg !18
65
66if.else:                                          ; preds = %while.body
67; call @goo 's basicblock doesn't get any sample, so no profile will be annotated.
68; CHECK: call i32 @goo(i32 2, i32 3), !dbg !{{[0-9]+}}
69; CHECK-NOT: !prof
70; CHECK-SAME: {{$}}
71  %call2 = call i32 @goo(i32 2, i32 3), !dbg !26
72  store i32 %call2, i32* %s, align 4, !dbg !20
73  br label %if.end
74
75if.end:                                           ; preds = %if.else, %if.then
76  br label %while.cond, !dbg !22
77
78while.end:                                        ; preds = %while.cond
79  %t4 = load i32, i32* %s, align 4, !dbg !24
80  %call3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 %t4), !dbg !24
81  ret i32 0, !dbg !25
82}
83
84declare i32 @printf(i8*, ...) #2
85
86attributes #0 = { "use-sample-profile" }
87
88!llvm.dbg.cu = !{!0}
89!llvm.module.flags = !{!8, !9}
90!llvm.ident = !{!10}
91
92!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: NoDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
93!1 = !DIFile(filename: "calls.cc", directory: ".")
94!2 = !{}
95!4 = distinct !DISubprogram(name: "foo", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 3, file: !1, scope: !5, type: !6, retainedNodes: !2)
96!5 = !DIFile(filename: "calls.cc", directory: ".")
97!6 = !DISubroutineType(types: !2)
98!7 = distinct !DISubprogram(name: "main", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 7, file: !1, scope: !5, type: !6, retainedNodes: !2)
99!8 = !{i32 2, !"Dwarf Version", i32 4}
100!9 = !{i32 1, !"Debug Info Version", i32 3}
101!10 = !{!"clang version 3.5 "}
102!11 = !DILocation(line: 4, scope: !4)
103!12 = !DILocation(line: 8, scope: !7)
104!13 = !DILocation(line: 9, scope: !7)
105!14 = !DILocation(line: 9, scope: !15)
106!15 = !DILexicalBlockFile(discriminator: 2, file: !1, scope: !7)
107!16 = !DILocation(line: 10, scope: !17)
108!17 = distinct !DILexicalBlock(line: 10, column: 0, file: !1, scope: !7)
109!18 = !DILocation(line: 10, scope: !19)
110!19 = !DILexicalBlockFile(discriminator: 2, file: !1, scope: !17)
111!20 = !DILocation(line: 10, scope: !21)
112!21 = !DILexicalBlockFile(discriminator: 4, file: !1, scope: !17)
113!22 = !DILocation(line: 10, scope: !23)
114!23 = !DILexicalBlockFile(discriminator: 6, file: !1, scope: !17)
115!24 = !DILocation(line: 11, scope: !7)
116!25 = !DILocation(line: 12, scope: !7)
117!26 = !DILocation(line: 11, scope: !19)
118