1 ;; Test for different function processing orders affecting inlining in sample profile loader.
3 ;; There is an SCC _Z5funcAi -> _Z8funcLeafi -> _Z5funcAi in the program.
4 ;; With -use-profiled-call-graph=0, the top-down processing order of
5 ;; that SCC is (_Z8funcLeafi, _Z5funcAi), which is determinined based on
6 ;; the static call graph. With -use-profiled-call-graph=1, call edges
7 ;; from profile are considered, thus the order becomes (_Z5funcAi, _Z8funcLeafi).
8 ;; While _Z8funcLeafi is not supposed to be inlined, the outlined entry counts
10 ; RUN: opt < %s -passes=sample-profile -use-profiled-call-graph=0 -sample-profile-file=%S/Inputs/profile-topdown-order.prof -S | FileCheck %s -check-prefix=STATIC
11 ; RUN: opt < %s -passes=sample-profile -use-profiled-call-graph=1 -sample-profile-file=%S/Inputs/profile-topdown-order.prof -S | FileCheck %s -check-prefix=DYNAMIC
14 ; STATIC: define dso_local i32 @_Z8funcLeafi{{.*}} !prof ![[#PROF:]]
15 ; STATIC: ![[#PROF]] = !{!"function_entry_count", i64 21}
16 ; DYNAMIC: define dso_local i32 @_Z8funcLeafi{{.*}} !prof ![[#PROF:]]
17 ; DYNAMIC: ![[#PROF]] = !{!"function_entry_count", i64 27}
19 @factor = dso_local global i32 3, align 4, !dbg !0
20 @fp = dso_local global ptr null, align 8
22 define dso_local i32 @_Z5funcAi(i32 %x) local_unnamed_addr #0 !dbg !40 {
24 %add = add nsw i32 %x, 100000, !dbg !44
25 %0 = load ptr, ptr @fp, align 8
26 %call = call i32 %0(i32 8), !dbg !45
27 %call1 = tail call i32 @_Z8funcLeafi(i32 %add), !dbg !46
28 ret i32 %call, !dbg !46
31 define dso_local i32 @main() local_unnamed_addr #0 !dbg !18 {
33 store ptr @_Z3fibi, ptr @fp, align 8, !dbg !25
34 br label %for.body, !dbg !25
36 for.cond.cleanup: ; preds = %for.body
37 ret i32 %add3, !dbg !27
39 for.body: ; preds = %for.body, %entry
40 %x.011 = phi i32 [ 300000, %entry ], [ %dec, %for.body ]
41 %r.010 = phi i32 [ 0, %entry ], [ %add3, %for.body ]
42 %call = tail call i32 @_Z5funcBi(i32 %x.011), !dbg !32
43 %add = add nuw nsw i32 %x.011, 1, !dbg !31
44 %call1 = tail call i32 @_Z5funcAi(i32 %add), !dbg !28
45 %add2 = add i32 %call, %r.010, !dbg !34
46 %add3 = add i32 %add2, %call1, !dbg !35
47 %dec = add nsw i32 %x.011, -1, !dbg !36
48 %cmp = icmp eq i32 %x.011, 0, !dbg !38
49 br i1 %cmp, label %for.cond.cleanup, label %for.body, !dbg !25
52 ; INLINE: define dso_local i32 @_Z8funcLeafi
53 ; NOINLINE: define dso_local i32 @_Z8funcLeafi
54 ; ICALL-INLINE: define dso_local i32 @_Z8funcLeafi
55 ; ICALL-NOINLINE: define dso_local i32 @_Z8funcLeafi
56 define dso_local i32 @_Z8funcLeafi(i32 %x) local_unnamed_addr #1 !dbg !54 {
58 %cmp = icmp sgt i32 %x, 0, !dbg !57
59 br i1 %cmp, label %while.body, label %while.cond2.preheader, !dbg !59
61 while.cond2.preheader: ; preds = %entry
62 %cmp313 = icmp slt i32 %x, 0, !dbg !60
63 br i1 %cmp313, label %while.body4, label %if.end, !dbg !63
65 while.body: ; preds = %while.body, %entry
66 %x.addr.016 = phi i32 [ %sub, %while.body ], [ %x, %entry ]
67 %tmp = load volatile i32, ptr @factor, align 4, !dbg !64
68 %call = tail call i32 @_Z5funcAi(i32 %tmp), !dbg !67
69 %sub = sub nsw i32 %x.addr.016, %call, !dbg !68
70 %cmp1 = icmp sgt i32 %sub, 0, !dbg !69
71 br i1 %cmp1, label %while.body, label %if.end, !dbg !71
73 while.body4: ; preds = %while.body4, %while.cond2.preheader
74 %x.addr.114 = phi i32 [ %add, %while.body4 ], [ %x, %while.cond2.preheader ]
75 %tmp1 = load volatile i32, ptr @factor, align 4, !dbg !72
76 %call5 = tail call i32 @_Z5funcBi(i32 %tmp1), !dbg !74
77 %add = add nsw i32 %call5, %x.addr.114, !dbg !75
78 %cmp3 = icmp slt i32 %add, 0, !dbg !60
79 br i1 %cmp3, label %while.body4, label %if.end, !dbg !63
81 if.end: ; preds = %while.body4, %while.body, %while.cond2.preheader
82 %x.addr.2 = phi i32 [ 0, %while.cond2.preheader ], [ %sub, %while.body ], [ %add, %while.body4 ]
83 ret i32 %x.addr.2, !dbg !76
86 define dso_local i32 @_Z5funcBi(i32 %x) local_unnamed_addr #0 !dbg !47 {
88 %sub = add nsw i32 %x, -100000, !dbg !51
89 %call = tail call i32 @_Z8funcLeafi(i32 %sub), !dbg !52
90 ret i32 %call, !dbg !53
93 define dso_local i32 @_Z3fibi(i32 %x) local_unnamed_addr #1 !dbg !77 {
95 %sub = add nsw i32 %x, -100000, !dbg !78
96 %call = tail call i32 @_Z3foo(i32 %sub), !dbg !78
97 ret i32 %sub, !dbg !78
100 declare i32 @_Z3foo(i32)
102 attributes #0 = { nofree noinline 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" }
103 attributes #1 = { nofree 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" }
106 !llvm.module.flags = !{!14, !15, !16}
109 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
110 !1 = distinct !DIGlobalVariable(name: "factor", scope: !2, file: !3, line: 21, type: !13, isLocal: false, isDefinition: true)
111 !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)
112 !3 = !DIFile(filename: "merged.cpp", directory: "/local/autofdo")
115 !6 = !DISubprogram(name: "funcA", linkageName: "_Z5funcAi", scope: !3, file: !3, line: 6, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
116 !7 = !DISubroutineType(types: !8)
118 !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
119 !10 = !DISubprogram(name: "funcB", linkageName: "_Z5funcBi", scope: !3, file: !3, line: 7, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
120 !11 = !DISubprogram(name: "funcLeaf", linkageName: "_Z8funcLeafi", scope: !3, file: !3, line: 22, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
122 !13 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !9)
123 !14 = !{i32 7, !"Dwarf Version", i32 4}
124 !15 = !{i32 2, !"Debug Info Version", i32 3}
125 !16 = !{i32 1, !"wchar_size", i32 4}
126 !17 = !{!"clang version 11.0.0"}
127 !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)
128 !19 = !DISubroutineType(types: !20)
131 !22 = !DILocalVariable(name: "r", scope: !18, file: !3, line: 12, type: !9)
132 !23 = !DILocalVariable(name: "x", scope: !24, file: !3, line: 13, type: !9)
133 !24 = distinct !DILexicalBlock(scope: !18, file: !3, line: 13, column: 3)
134 !25 = !DILocation(line: 13, column: 3, scope: !26)
135 !26 = !DILexicalBlockFile(scope: !24, file: !3, discriminator: 2)
136 !27 = !DILocation(line: 17, column: 3, scope: !18)
137 !28 = !DILocation(line: 14, column: 10, scope: !29)
138 !29 = distinct !DILexicalBlock(scope: !30, file: !3, line: 13, column: 37)
139 !30 = distinct !DILexicalBlock(scope: !24, file: !3, line: 13, column: 3)
140 !31 = !DILocation(line: 14, column: 29, scope: !29)
141 !32 = !DILocation(line: 14, column: 21, scope: !33)
142 !33 = !DILexicalBlockFile(scope: !29, file: !3, discriminator: 2)
143 !34 = !DILocation(line: 14, column: 19, scope: !29)
144 !35 = !DILocation(line: 14, column: 7, scope: !29)
145 !36 = !DILocation(line: 13, column: 33, scope: !37)
146 !37 = !DILexicalBlockFile(scope: !30, file: !3, discriminator: 6)
147 !38 = !DILocation(line: 13, column: 26, scope: !39)
148 !39 = !DILexicalBlockFile(scope: !30, file: !3, discriminator: 2)
149 !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)
150 !44 = !DILocation(line: 26, column: 22, scope: !40)
151 !45 = !DILocation(line: 28, column: 11, scope: !40)
152 !46 = !DILocation(line: 27, column: 3, scope: !40)
153 !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)
154 !51 = !DILocation(line: 33, column: 22, scope: !47)
155 !52 = !DILocation(line: 33, column: 11, scope: !47)
156 !53 = !DILocation(line: 35, column: 3, scope: !47)
157 !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)
158 !57 = !DILocation(line: 49, column: 9, scope: !58)
159 !58 = distinct !DILexicalBlock(scope: !54, file: !3, line: 49, column: 7)
160 !59 = !DILocation(line: 49, column: 7, scope: !54)
161 !60 = !DILocation(line: 58, column: 14, scope: !61)
162 !61 = !DILexicalBlockFile(scope: !62, file: !3, discriminator: 2)
163 !62 = distinct !DILexicalBlock(scope: !58, file: !3, line: 56, column: 8)
164 !63 = !DILocation(line: 58, column: 5, scope: !61)
165 !64 = !DILocation(line: 52, column: 16, scope: !65)
166 !65 = distinct !DILexicalBlock(scope: !66, file: !3, line: 51, column: 19)
167 !66 = distinct !DILexicalBlock(scope: !58, file: !3, line: 49, column: 14)
168 !67 = !DILocation(line: 52, column: 12, scope: !65)
169 !68 = !DILocation(line: 52, column: 9, scope: !65)
170 !69 = !DILocation(line: 51, column: 14, scope: !70)
171 !70 = !DILexicalBlockFile(scope: !66, file: !3, discriminator: 2)
172 !71 = !DILocation(line: 51, column: 5, scope: !70)
173 !72 = !DILocation(line: 59, column: 16, scope: !73)
174 !73 = distinct !DILexicalBlock(scope: !62, file: !3, line: 58, column: 19)
175 !74 = !DILocation(line: 59, column: 12, scope: !73)
176 !75 = !DILocation(line: 59, column: 9, scope: !73)
177 !76 = !DILocation(line: 63, column: 3, scope: !54)
178 !77 = distinct !DISubprogram(name: "funcB", linkageName: "_Z3fibi", scope: !3, file: !3, line: 32, type: !7, scopeLine: 32, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2)
179 !78 = !DILocation(line: 33, column: 22, scope: !77)