2 ; Test that the new FDO inliner using prioty queue will not visit same call site again and again.
3 ; Use debug prints as repeated call site evaluation is not visible from final inline decision.
5 ; Note that we need new pass manager to enable top-down processing for sample profile loader
6 ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/profile-context-tracker.prof -sample-profile-inline-size -sample-profile-prioritized-inline=0 -debug-only=sample-context-tracker -o /dev/null 2>&1 | FileCheck %s --check-prefix=OLD-INLINE
7 ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/profile-context-tracker.prof -sample-profile-inline-size -sample-profile-prioritized-inline=1 -debug-only=sample-context-tracker -o /dev/null 2>&1 | FileCheck %s --check-prefix=NEW-INLINE
9 ; Old inliner will evaluate the same call site three times
10 ; OLD-INLINE: Getting callee context for instr: %call = tail call i32 @_Z5funcBi
11 ; OLD-INLINE-NEXT: Callee context found: main:3.1 @ _Z5funcBi
12 ; OLD-INLINE: Getting callee context for instr: %call = tail call i32 @_Z5funcBi
13 ; OLD-INLINE-NEXT: Callee context found: main:3.1 @ _Z5funcBi
14 ; OLD-INLINE: Getting callee context for instr: %call = tail call i32 @_Z5funcBi
15 ; OLD-INLINE-NEXT: Callee context found: main:3.1 @ _Z5funcBi
17 ; New inliner only evaluate the same call site once
18 ; NEW-INLINE: Getting callee context for instr: %call = tail call i32 @_Z5funcBi
19 ; NEW-INLINE-NEXT: Callee context found: main:3.1 @ _Z5funcBi
20 ; NEW-INLINE-NOT: Getting callee context for instr: %call = tail call i32 @_Z5funcBi
21 ; NEW-INLINE-NOT: Callee context found: main:3.1 @ _Z5funcBi
23 @factor = dso_local global i32 3, align 4, !dbg !0
25 define dso_local i32 @main() local_unnamed_addr #0 !dbg !18 {
27 br label %for.body, !dbg !25
29 for.cond.cleanup: ; preds = %for.body
30 ret i32 %add3, !dbg !27
32 for.body: ; preds = %for.body, %entry
33 %x.011 = phi i32 [ 300000, %entry ], [ %dec, %for.body ]
34 %r.010 = phi i32 [ 0, %entry ], [ %add3, %for.body ]
35 %call = tail call i32 @_Z5funcBi(i32 %x.011), !dbg !32
36 %add = add nuw nsw i32 %x.011, 1, !dbg !31
37 %call1 = tail call i32 @_Z5funcAi(i32 %add), !dbg !28
38 %add2 = add i32 %call, %r.010, !dbg !34
39 %add3 = add i32 %add2, %call1, !dbg !35
40 %dec = add nsw i32 %x.011, -1, !dbg !36
41 %cmp = icmp eq i32 %x.011, 0, !dbg !38
42 br i1 %cmp, label %for.cond.cleanup, label %for.body, !dbg !25
45 define dso_local i32 @_Z5funcAi(i32 %x) local_unnamed_addr #1 !dbg !40 {
47 %add = add nsw i32 %x, 100000, !dbg !44
48 %call = tail call i32 @_Z8funcLeafi(i32 %add), !dbg !45
49 ret i32 %call, !dbg !46
52 define dso_local i32 @_Z8funcLeafi(i32 %x) local_unnamed_addr #1 !dbg !54 {
54 %cmp = icmp sgt i32 %x, 0, !dbg !57
55 br i1 %cmp, label %while.body, label %while.cond2.preheader, !dbg !59
57 while.cond2.preheader: ; preds = %entry
58 %cmp313 = icmp slt i32 %x, 0, !dbg !60
59 br i1 %cmp313, label %while.body4, label %if.end, !dbg !63
61 while.body: ; preds = %while.body, %entry
62 %x.addr.016 = phi i32 [ %sub, %while.body ], [ %x, %entry ]
63 %tmp = load volatile i32, ptr @factor, align 4, !dbg !64
64 %call = tail call i32 @_Z3fibi(i32 %tmp), !dbg !67
65 %sub = sub nsw i32 %x.addr.016, %call, !dbg !68
66 %cmp1 = icmp sgt i32 %sub, 0, !dbg !69
67 br i1 %cmp1, label %while.body, label %if.end, !dbg !71
69 while.body4: ; preds = %while.body4, %while.cond2.preheader
70 %x.addr.114 = phi i32 [ %add, %while.body4 ], [ %x, %while.cond2.preheader ]
71 %tmp1 = load volatile i32, ptr @factor, align 4, !dbg !72
72 %call5 = tail call i32 @_Z3fibi(i32 %tmp1), !dbg !74
73 %add = add nsw i32 %call5, %x.addr.114, !dbg !75
74 %cmp3 = icmp slt i32 %add, 0, !dbg !60
75 br i1 %cmp3, label %while.body4, label %if.end, !dbg !63
77 if.end: ; preds = %while.body4, %while.body, %while.cond2.preheader
78 %x.addr.2 = phi i32 [ 0, %while.cond2.preheader ], [ %sub, %while.body ], [ %add, %while.body4 ]
79 ret i32 %x.addr.2, !dbg !76
82 define dso_local i32 @_Z5funcBi(i32 %x) local_unnamed_addr #0 !dbg !47 {
84 %sub = add nsw i32 %x, -100000, !dbg !51
85 %call = tail call i32 @_Z8funcLeafi(i32 %sub), !dbg !52
86 ret i32 %call, !dbg !53
89 declare i32 @_Z3fibi(i32)
91 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" }
92 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" }
95 !llvm.module.flags = !{!14, !15, !16}
98 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
99 !1 = distinct !DIGlobalVariable(name: "factor", scope: !2, file: !3, line: 21, type: !13, isLocal: false, isDefinition: true)
100 !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)
101 !3 = !DIFile(filename: "merged.cpp", directory: "/local/autofdo")
104 !6 = !DISubprogram(name: "funcA", linkageName: "_Z5funcAi", scope: !3, file: !3, line: 6, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
105 !7 = !DISubroutineType(types: !8)
107 !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
108 !10 = !DISubprogram(name: "funcB", linkageName: "_Z5funcBi", scope: !3, file: !3, line: 7, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
109 !11 = !DISubprogram(name: "funcLeaf", linkageName: "_Z8funcLeafi", scope: !3, file: !3, line: 22, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
111 !13 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !9)
112 !14 = !{i32 7, !"Dwarf Version", i32 4}
113 !15 = !{i32 2, !"Debug Info Version", i32 3}
114 !16 = !{i32 1, !"wchar_size", i32 4}
115 !17 = !{!"clang version 11.0.0"}
116 !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)
117 !19 = !DISubroutineType(types: !20)
120 !22 = !DILocalVariable(name: "r", scope: !18, file: !3, line: 12, type: !9)
121 !23 = !DILocalVariable(name: "x", scope: !24, file: !3, line: 13, type: !9)
122 !24 = distinct !DILexicalBlock(scope: !18, file: !3, line: 13, column: 3)
123 !25 = !DILocation(line: 13, column: 3, scope: !26)
124 !26 = !DILexicalBlockFile(scope: !24, file: !3, discriminator: 2)
125 !27 = !DILocation(line: 17, column: 3, scope: !18)
126 !28 = !DILocation(line: 14, column: 10, scope: !29)
127 !29 = distinct !DILexicalBlock(scope: !30, file: !3, line: 13, column: 37)
128 !30 = distinct !DILexicalBlock(scope: !24, file: !3, line: 13, column: 3)
129 !31 = !DILocation(line: 14, column: 29, scope: !29)
130 !32 = !DILocation(line: 14, column: 21, scope: !33)
131 !33 = !DILexicalBlockFile(scope: !29, file: !3, discriminator: 2)
132 !34 = !DILocation(line: 14, column: 19, scope: !29)
133 !35 = !DILocation(line: 14, column: 7, scope: !29)
134 !36 = !DILocation(line: 13, column: 33, scope: !37)
135 !37 = !DILexicalBlockFile(scope: !30, file: !3, discriminator: 6)
136 !38 = !DILocation(line: 13, column: 26, scope: !39)
137 !39 = !DILexicalBlockFile(scope: !30, file: !3, discriminator: 2)
138 !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)
139 !44 = !DILocation(line: 27, column: 22, scope: !40)
140 !45 = !DILocation(line: 27, column: 11, scope: !40)
141 !46 = !DILocation(line: 29, column: 3, scope: !40)
142 !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)
143 !51 = !DILocation(line: 33, column: 22, scope: !47)
144 !52 = !DILocation(line: 33, column: 11, scope: !47)
145 !53 = !DILocation(line: 35, column: 3, scope: !47)
146 !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)
147 !57 = !DILocation(line: 49, column: 9, scope: !58)
148 !58 = distinct !DILexicalBlock(scope: !54, file: !3, line: 49, column: 7)
149 !59 = !DILocation(line: 49, column: 7, scope: !54)
150 !60 = !DILocation(line: 58, column: 14, scope: !61)
151 !61 = !DILexicalBlockFile(scope: !62, file: !3, discriminator: 2)
152 !62 = distinct !DILexicalBlock(scope: !58, file: !3, line: 56, column: 8)
153 !63 = !DILocation(line: 58, column: 5, scope: !61)
154 !64 = !DILocation(line: 52, column: 16, scope: !65)
155 !65 = distinct !DILexicalBlock(scope: !66, file: !3, line: 51, column: 19)
156 !66 = distinct !DILexicalBlock(scope: !58, file: !3, line: 49, column: 14)
157 !67 = !DILocation(line: 52, column: 12, scope: !65)
158 !68 = !DILocation(line: 52, column: 9, scope: !65)
159 !69 = !DILocation(line: 51, column: 14, scope: !70)
160 !70 = !DILexicalBlockFile(scope: !66, file: !3, discriminator: 2)
161 !71 = !DILocation(line: 51, column: 5, scope: !70)
162 !72 = !DILocation(line: 59, column: 16, scope: !73)
163 !73 = distinct !DILexicalBlock(scope: !62, file: !3, line: 58, column: 19)
164 !74 = !DILocation(line: 59, column: 12, scope: !73)
165 !75 = !DILocation(line: 59, column: 9, scope: !73)
166 !76 = !DILocation(line: 63, column: 3, scope: !54)