1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
; Test for CSSPGO's sample loader inlining to make sure it can use llvm-profgen preinliner's decision
; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/csspgo-use-preinliner.prof -pass-remarks=inline -sample-profile-prioritized-inline -profile-sample-accurate -sample-profile-use-preinliner=0 -S 2>&1 | FileCheck %s --check-prefix=DEFAULT
; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/csspgo-use-preinliner.prof -pass-remarks=inline -sample-profile-prioritized-inline -profile-sample-accurate -sample-profile-use-preinliner=1 -S 2>&1 | FileCheck %s --check-prefix=PREINLINE
; RUN: llvm-profdata merge --sample --text --gen-cs-nested-profile -generate-merged-base-profiles=0 %S/Inputs/csspgo-use-preinliner.prof -o %t.prof
; RUN: opt < %s -passes=sample-profile -sample-profile-file=%t.prof -pass-remarks=inline -sample-profile-prioritized-inline -profile-sample-accurate -sample-profile-use-preinliner=0 -S 2>&1 | FileCheck %s --check-prefix=DEFAULT
; RUN: opt < %s -passes=sample-profile -sample-profile-file=%t.prof -pass-remarks=inline -sample-profile-prioritized-inline -profile-sample-accurate -sample-profile-use-preinliner=1 -S 2>&1 | FileCheck %s --check-prefix=PREINLINE
; DEFAULT: '_Z5funcAi' inlined into 'main'
; DEFAULT-NOT: inlined into
; PREINLINE-NOT: inlined into
; `[main:3 @ _Z5funcAi]` does not have preinline decision, so it's up for loader inliner to decided.
; PREINLINE: '_Z5funcAi' inlined into 'main'
; `[main:3 @ _Z5funcAi:1 @ _Z8funcLeafi]` is inlined according to preinline decision.
; PREINLINE: '_Z8funcLeafi' inlined into 'main'
; Even though `[main:3.1 @ _Z5funcBi]` context is marked should inline, `_Z5funcBi` is a noinline function, so we honor that and don't inline.
; When _Z5funcBi is promoted to be top level context-less profile, `[_Z5funcBi:1 @ _Z8funcLeafi]` becomes synthetic context, so preinline decision is ignored and we don't inline `_Z8funcLeafi`.
; PREINLINE-NOT: inlined into
@factor = dso_local global i32 3, align 4, !dbg !0
define dso_local i32 @main() local_unnamed_addr #0 !dbg !18 {
entry:
br label %for.body, !dbg !25
for.cond.cleanup: ; preds = %for.body
ret i32 %add3, !dbg !27
for.body: ; preds = %for.body, %entry
%x.011 = phi i32 [ 300000, %entry ], [ %dec, %for.body ]
%r.010 = phi i32 [ 0, %entry ], [ %add3, %for.body ]
%call = tail call i32 @_Z5funcBi(i32 %x.011), !dbg !32
%add = add nuw nsw i32 %x.011, 1, !dbg !31
%call1 = tail call i32 @_Z5funcAi(i32 %add), !dbg !28
%add2 = add i32 %call, %r.010, !dbg !34
%add3 = add i32 %add2, %call1, !dbg !35
%dec = add nsw i32 %x.011, -1, !dbg !36
%cmp = icmp eq i32 %x.011, 0, !dbg !38
br i1 %cmp, label %for.cond.cleanup, label %for.body, !dbg !25
}
define dso_local i32 @_Z5funcAi(i32 %x) local_unnamed_addr #1 !dbg !40 {
entry:
%add = add nsw i32 %x, 100000, !dbg !44
%call = tail call i32 @_Z8funcLeafi(i32 %add), !dbg !45
ret i32 %call, !dbg !46
}
define dso_local i32 @_Z8funcLeafi(i32 %x) local_unnamed_addr #1 !dbg !54 {
entry:
%cmp = icmp sgt i32 %x, 0, !dbg !57
br i1 %cmp, label %while.body, label %while.cond2.preheader, !dbg !59
while.cond2.preheader: ; preds = %entry
%cmp313 = icmp slt i32 %x, 0, !dbg !60
br i1 %cmp313, label %while.body4, label %if.end, !dbg !63
while.body: ; preds = %while.body, %entry
%x.addr.016 = phi i32 [ %sub, %while.body ], [ %x, %entry ]
%tmp = load volatile i32, i32* @factor, align 4, !dbg !64
%call = tail call i32 @_Z3fibi(i32 %tmp), !dbg !67
%sub = sub nsw i32 %x.addr.016, %call, !dbg !68
%cmp1 = icmp sgt i32 %sub, 0, !dbg !69
br i1 %cmp1, label %while.body, label %if.end, !dbg !71
while.body4: ; preds = %while.body4, %while.cond2.preheader
%x.addr.114 = phi i32 [ %add, %while.body4 ], [ %x, %while.cond2.preheader ]
%tmp1 = load volatile i32, i32* @factor, align 4, !dbg !72
%call5 = tail call i32 @_Z3fibi(i32 %tmp1), !dbg !74
%add = add nsw i32 %call5, %x.addr.114, !dbg !75
%cmp3 = icmp slt i32 %add, 0, !dbg !60
br i1 %cmp3, label %while.body4, label %if.end, !dbg !63
if.end: ; preds = %while.body4, %while.body, %while.cond2.preheader
%x.addr.2 = phi i32 [ 0, %while.cond2.preheader ], [ %sub, %while.body ], [ %add, %while.body4 ]
ret i32 %x.addr.2, !dbg !76
}
define dso_local i32 @_Z5funcBi(i32 %x) local_unnamed_addr #0 !dbg !47 {
entry:
%sub = add nsw i32 %x, -100000, !dbg !51
%call = tail call i32 @_Z8funcLeafi(i32 %sub), !dbg !52
ret i32 %call, !dbg !53
}
declare i32 @_Z3fibi(i32)
attributes #0 = { nofree noinline norecurse nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" "use-sample-profile" }
attributes #1 = { nofree norecurse nounwind uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" "use-sample-profile" }
!llvm.dbg.cu = !{!2}
!llvm.module.flags = !{!14, !15, !16}
!llvm.ident = !{!17}
!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
!1 = distinct !DIGlobalVariable(name: "factor", scope: !2, file: !3, line: 21, type: !13, isLocal: false, isDefinition: true)
!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !12, splitDebugInlining: false, debugInfoForProfiling: true, nameTableKind: None)
!3 = !DIFile(filename: "merged.cpp", directory: "/local/autofdo")
!4 = !{}
!5 = !{!6, !10, !11}
!6 = !DISubprogram(name: "funcA", linkageName: "_Z5funcAi", scope: !3, file: !3, line: 6, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
!7 = !DISubroutineType(types: !8)
!8 = !{!9, !9}
!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!10 = !DISubprogram(name: "funcB", linkageName: "_Z5funcBi", scope: !3, file: !3, line: 7, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
!11 = !DISubprogram(name: "funcLeaf", linkageName: "_Z8funcLeafi", scope: !3, file: !3, line: 22, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
!12 = !{!0}
!13 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !9)
!14 = !{i32 7, !"Dwarf Version", i32 4}
!15 = !{i32 2, !"Debug Info Version", i32 3}
!16 = !{i32 1, !"wchar_size", i32 4}
!17 = !{!"clang version 11.0.0"}
!18 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 11, type: !19, scopeLine: 11, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !21)
!19 = !DISubroutineType(types: !20)
!20 = !{!9}
!21 = !{!22, !23}
!22 = !DILocalVariable(name: "r", scope: !18, file: !3, line: 12, type: !9)
!23 = !DILocalVariable(name: "x", scope: !24, file: !3, line: 13, type: !9)
!24 = distinct !DILexicalBlock(scope: !18, file: !3, line: 13, column: 3)
!25 = !DILocation(line: 13, column: 3, scope: !26)
!26 = !DILexicalBlockFile(scope: !24, file: !3, discriminator: 2)
!27 = !DILocation(line: 17, column: 3, scope: !18)
!28 = !DILocation(line: 14, column: 10, scope: !29)
!29 = distinct !DILexicalBlock(scope: !30, file: !3, line: 13, column: 37)
!30 = distinct !DILexicalBlock(scope: !24, file: !3, line: 13, column: 3)
!31 = !DILocation(line: 14, column: 29, scope: !29)
!32 = !DILocation(line: 14, column: 21, scope: !33)
!33 = !DILexicalBlockFile(scope: !29, file: !3, discriminator: 2)
!34 = !DILocation(line: 14, column: 19, scope: !29)
!35 = !DILocation(line: 14, column: 7, scope: !29)
!36 = !DILocation(line: 13, column: 33, scope: !37)
!37 = !DILexicalBlockFile(scope: !30, file: !3, discriminator: 6)
!38 = !DILocation(line: 13, column: 26, scope: !39)
!39 = !DILexicalBlockFile(scope: !30, file: !3, discriminator: 2)
!40 = distinct !DISubprogram(name: "funcA", linkageName: "_Z5funcAi", scope: !3, file: !3, line: 26, type: !7, scopeLine: 26, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2)
!44 = !DILocation(line: 27, column: 22, scope: !40)
!45 = !DILocation(line: 27, column: 11, scope: !40)
!46 = !DILocation(line: 29, column: 3, scope: !40)
!47 = distinct !DISubprogram(name: "funcB", linkageName: "_Z5funcBi", scope: !3, file: !3, line: 32, type: !7, scopeLine: 32, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2)
!51 = !DILocation(line: 33, column: 22, scope: !47)
!52 = !DILocation(line: 33, column: 11, scope: !47)
!53 = !DILocation(line: 35, column: 3, scope: !47)
!54 = distinct !DISubprogram(name: "funcLeaf", linkageName: "_Z8funcLeafi", scope: !3, file: !3, line: 48, type: !7, scopeLine: 48, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2)
!57 = !DILocation(line: 49, column: 9, scope: !58)
!58 = distinct !DILexicalBlock(scope: !54, file: !3, line: 49, column: 7)
!59 = !DILocation(line: 49, column: 7, scope: !54)
!60 = !DILocation(line: 58, column: 14, scope: !61)
!61 = !DILexicalBlockFile(scope: !62, file: !3, discriminator: 2)
!62 = distinct !DILexicalBlock(scope: !58, file: !3, line: 56, column: 8)
!63 = !DILocation(line: 58, column: 5, scope: !61)
!64 = !DILocation(line: 52, column: 16, scope: !65)
!65 = distinct !DILexicalBlock(scope: !66, file: !3, line: 51, column: 19)
!66 = distinct !DILexicalBlock(scope: !58, file: !3, line: 49, column: 14)
!67 = !DILocation(line: 52, column: 12, scope: !65)
!68 = !DILocation(line: 52, column: 9, scope: !65)
!69 = !DILocation(line: 51, column: 14, scope: !70)
!70 = !DILexicalBlockFile(scope: !66, file: !3, discriminator: 2)
!71 = !DILocation(line: 51, column: 5, scope: !70)
!72 = !DILocation(line: 59, column: 16, scope: !73)
!73 = distinct !DILexicalBlock(scope: !62, file: !3, line: 58, column: 19)
!74 = !DILocation(line: 59, column: 12, scope: !73)
!75 = !DILocation(line: 59, column: 9, scope: !73)
!76 = !DILocation(line: 63, column: 3, scope: !54)
|
