1 ; Test for CSSPGO's SampleContextTracker to make sure context profile tree is promoted and merged properly
2 ; based on inline decision, so post inline counts are accurate.
4 ; RUN: llvm-profdata merge --sample --extbinary %S/Inputs/profile-context-tracker.prof -o %t
6 ; Note that we need new pass manager to enable top-down processing for sample profile loader
7 ; Test we inlined the following in top-down order and entry counts accurate reflects post-inline base profile
9 ; main:3 @ _Z5funcAi:1 @ _Z8funcLeafi
10 ; _Z5funcBi:1 @ _Z8funcLeafi
11 ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/profile-context-tracker.prof -sample-profile-inline-size -sample-profile-prioritized-inline=0 -profile-sample-accurate -S | FileCheck %s --check-prefix=INLINE-ALL
12 ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%t -sample-profile-inline-size -sample-profile-prioritized-inline=0 -profile-sample-accurate -S | FileCheck %s --check-prefix=INLINE-ALL
13 ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/profile-context-tracker.prof -sample-profile-inline-size -sample-profile-cold-inline-threshold=200 -profile-sample-accurate -S | FileCheck %s --check-prefix=INLINE-ALL
14 ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%t -sample-profile-inline-size -sample-profile-cold-inline-threshold=200 -profile-sample-accurate -S | FileCheck %s --check-prefix=INLINE-ALL
16 ; Test we inlined the following in top-down order and entry counts accurate reflects post-inline base profile
17 ; _Z5funcAi:1 @ _Z8funcLeafi
18 ; _Z5funcBi:1 @ _Z8funcLeafi
21 @factor = dso_local global i32 3, align 4, !dbg !0
23 define dso_local i32 @main() local_unnamed_addr #0 !dbg !18 {
24 ; INLINE-ALL: @main{{.*}}!prof ![[MAIN_PROF:[0-9]+]]
25 ; INLINE-HOT: @main{{.*}}!prof ![[MAIN_PROF:[0-9]+]]
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 ; _Z5funcBi is marked noinline
37 ; INLINE-ALL: call i32 @_Z5funcBi
38 ; INLINE-HOT: call i32 @_Z5funcBi
39 %add = add nuw nsw i32 %x.011, 1, !dbg !31
40 %call1 = tail call i32 @_Z5funcAi(i32 %add), !dbg !28
41 ; INLINE-ALL-NOT: call i32 @_Z5funcAi
42 ; INLINE-HOT: call i32 @_Z5funcAi
43 %add2 = add i32 %call, %r.010, !dbg !34
44 %add3 = add i32 %add2, %call1, !dbg !35
45 %dec = add nsw i32 %x.011, -1, !dbg !36
46 %cmp = icmp eq i32 %x.011, 0, !dbg !38
47 br i1 %cmp, label %for.cond.cleanup, label %for.body, !dbg !25
50 define dso_local i32 @_Z5funcAi(i32 %x) local_unnamed_addr #1 !dbg !40 {
51 ; _Z5funcAi is inlined, so outline remainder should have zero counts
52 ; INLINE-ALL: @_Z5funcAi{{.*}}!prof ![[FUNCA_PROF:[0-9]+]]
53 ; INLINE-HOT: @_Z5funcAi{{.*}}!prof ![[FUNCA_PROF:[0-9]+]]
55 %add = add nsw i32 %x, 100000, !dbg !44
56 ; _Z8funcLeafi is already inlined on main->_Z5funcAi->_Z8funcLeafi,
57 ; so it should not be inlined on _Z5funcAi->_Z8funcLeafi based on updated
58 ; (merged and promoted) context profile
59 ; INLINE-ALL: call i32 @_Z8funcLeafi
60 ; INLINE-HOT-NOT: call i32 @_Z8funcLeafi
61 %call = tail call i32 @_Z8funcLeafi(i32 %add), !dbg !45
62 ret i32 %call, !dbg !46
65 define dso_local i32 @_Z8funcLeafi(i32 %x) local_unnamed_addr #1 !dbg !54 {
66 ; main->_Z5funcAi->_Z8funcLeafi is inlined, and _Z5funcBi->_Z8funcLeafi is also
67 ; inlined, so outline remainder should have empty profile
68 ; INLINE-ALL: @_Z8funcLeafi{{.*}}!prof ![[LEAF_PROF:[0-9]+]]
69 ; INLINE-HOT: @_Z8funcLeafi{{.*}}!prof ![[LEAF_PROF:[0-9]+]]
71 %cmp = icmp sgt i32 %x, 0, !dbg !57
72 br i1 %cmp, label %while.body, label %while.cond2.preheader, !dbg !59
74 while.cond2.preheader: ; preds = %entry
75 %cmp313 = icmp slt i32 %x, 0, !dbg !60
76 br i1 %cmp313, label %while.body4, label %if.end, !dbg !63
78 while.body: ; preds = %while.body, %entry
79 %x.addr.016 = phi i32 [ %sub, %while.body ], [ %x, %entry ]
80 %tmp = load volatile i32, i32* @factor, align 4, !dbg !64
81 %call = tail call i32 @_Z3fibi(i32 %tmp), !dbg !67
82 %sub = sub nsw i32 %x.addr.016, %call, !dbg !68
83 %cmp1 = icmp sgt i32 %sub, 0, !dbg !69
84 br i1 %cmp1, label %while.body, label %if.end, !dbg !71
86 while.body4: ; preds = %while.body4, %while.cond2.preheader
87 %x.addr.114 = phi i32 [ %add, %while.body4 ], [ %x, %while.cond2.preheader ]
88 %tmp1 = load volatile i32, i32* @factor, align 4, !dbg !72
89 %call5 = tail call i32 @_Z3fibi(i32 %tmp1), !dbg !74
90 %add = add nsw i32 %call5, %x.addr.114, !dbg !75
91 %cmp3 = icmp slt i32 %add, 0, !dbg !60
92 br i1 %cmp3, label %while.body4, label %if.end, !dbg !63
94 if.end: ; preds = %while.body4, %while.body, %while.cond2.preheader
95 %x.addr.2 = phi i32 [ 0, %while.cond2.preheader ], [ %sub, %while.body ], [ %add, %while.body4 ]
96 ret i32 %x.addr.2, !dbg !76
99 define dso_local i32 @_Z5funcBi(i32 %x) local_unnamed_addr #0 !dbg !47 {
100 ; _Z5funcBi is marked noinline, so outline remainder has promoted context profile
101 ; INLINE-ALL: @_Z5funcBi{{.*}}!prof ![[FUNCB_PROF:[0-9]+]]
102 ; INLINE-HOT: @_Z5funcBi{{.*}}!prof ![[FUNCB_PROF:[0-9]+]]
104 %sub = add nsw i32 %x, -100000, !dbg !51
105 %call = tail call i32 @_Z8funcLeafi(i32 %sub), !dbg !52
106 ; _Z5funcBi is not inlined into main, so we main->_Z5funcBi->_Z8funcLeafi
107 ; should be inlined based on promoted context profile
108 ; INLINE-ALL-NOT: call i32 @_Z8funcLeafi
109 ; INLINE-HOT-NOT: call i32 @_Z8funcLeafi
110 ret i32 %call, !dbg !53
113 ; INLINE-ALL-DAG: [[MAIN_PROF]] = !{!"function_entry_count", i64 1}
114 ; INLINE-ALL-DAG: [[FUNCA_PROF]] = !{!"function_entry_count", i64 0}
115 ; INLINE-ALL-DAG-SAME: [[LEAF_PROF]] = !{!"function_entry_count", i64 0}
116 ; INLINE-ALL-DAG: [[FUNCB_PROF]] = !{!"function_entry_count", i64 13}
118 ; INLINE-HOT-DAG: [[MAIN_PROF]] = !{!"function_entry_count", i64 1}
119 ; INLINE-HOT-DAG: [[FUNCA_PROF]] = !{!"function_entry_count", i64 12}
120 ; INLINE-HOT-DAG-SAME: [[LEAF_PROF]] = !{!"function_entry_count", i64 0}
121 ; INLINE-HOT-DAG: [[FUNCB_PROF]] = !{!"function_entry_count", i64 13}
123 declare i32 @_Z3fibi(i32)
125 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" }
126 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" }
129 !llvm.module.flags = !{!14, !15, !16}
132 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
133 !1 = distinct !DIGlobalVariable(name: "factor", scope: !2, file: !3, line: 21, type: !13, isLocal: false, isDefinition: true)
134 !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)
135 !3 = !DIFile(filename: "merged.cpp", directory: "/local/autofdo")
138 !6 = !DISubprogram(name: "funcA", linkageName: "_Z5funcAi", scope: !3, file: !3, line: 6, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
139 !7 = !DISubroutineType(types: !8)
141 !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
142 !10 = !DISubprogram(name: "funcB", linkageName: "_Z5funcBi", scope: !3, file: !3, line: 7, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
143 !11 = !DISubprogram(name: "funcLeaf", linkageName: "_Z8funcLeafi", scope: !3, file: !3, line: 22, type: !7, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !4)
145 !13 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !9)
146 !14 = !{i32 7, !"Dwarf Version", i32 4}
147 !15 = !{i32 2, !"Debug Info Version", i32 3}
148 !16 = !{i32 1, !"wchar_size", i32 4}
149 !17 = !{!"clang version 11.0.0"}
150 !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)
151 !19 = !DISubroutineType(types: !20)
154 !22 = !DILocalVariable(name: "r", scope: !18, file: !3, line: 12, type: !9)
155 !23 = !DILocalVariable(name: "x", scope: !24, file: !3, line: 13, type: !9)
156 !24 = distinct !DILexicalBlock(scope: !18, file: !3, line: 13, column: 3)
157 !25 = !DILocation(line: 13, column: 3, scope: !26)
158 !26 = !DILexicalBlockFile(scope: !24, file: !3, discriminator: 2)
159 !27 = !DILocation(line: 17, column: 3, scope: !18)
160 !28 = !DILocation(line: 14, column: 10, scope: !29)
161 !29 = distinct !DILexicalBlock(scope: !30, file: !3, line: 13, column: 37)
162 !30 = distinct !DILexicalBlock(scope: !24, file: !3, line: 13, column: 3)
163 !31 = !DILocation(line: 14, column: 29, scope: !29)
164 !32 = !DILocation(line: 14, column: 21, scope: !33)
165 !33 = !DILexicalBlockFile(scope: !29, file: !3, discriminator: 2)
166 !34 = !DILocation(line: 14, column: 19, scope: !29)
167 !35 = !DILocation(line: 14, column: 7, scope: !29)
168 !36 = !DILocation(line: 13, column: 33, scope: !37)
169 !37 = !DILexicalBlockFile(scope: !30, file: !3, discriminator: 6)
170 !38 = !DILocation(line: 13, column: 26, scope: !39)
171 !39 = !DILexicalBlockFile(scope: !30, file: !3, discriminator: 2)
172 !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)
173 !44 = !DILocation(line: 27, column: 22, scope: !40)
174 !45 = !DILocation(line: 27, column: 11, scope: !40)
175 !46 = !DILocation(line: 29, column: 3, scope: !40)
176 !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)
177 !51 = !DILocation(line: 33, column: 22, scope: !47)
178 !52 = !DILocation(line: 33, column: 11, scope: !47)
179 !53 = !DILocation(line: 35, column: 3, scope: !47)
180 !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)
181 !57 = !DILocation(line: 49, column: 9, scope: !58)
182 !58 = distinct !DILexicalBlock(scope: !54, file: !3, line: 49, column: 7)
183 !59 = !DILocation(line: 49, column: 7, scope: !54)
184 !60 = !DILocation(line: 58, column: 14, scope: !61)
185 !61 = !DILexicalBlockFile(scope: !62, file: !3, discriminator: 2)
186 !62 = distinct !DILexicalBlock(scope: !58, file: !3, line: 56, column: 8)
187 !63 = !DILocation(line: 58, column: 5, scope: !61)
188 !64 = !DILocation(line: 52, column: 16, scope: !65)
189 !65 = distinct !DILexicalBlock(scope: !66, file: !3, line: 51, column: 19)
190 !66 = distinct !DILexicalBlock(scope: !58, file: !3, line: 49, column: 14)
191 !67 = !DILocation(line: 52, column: 12, scope: !65)
192 !68 = !DILocation(line: 52, column: 9, scope: !65)
193 !69 = !DILocation(line: 51, column: 14, scope: !70)
194 !70 = !DILexicalBlockFile(scope: !66, file: !3, discriminator: 2)
195 !71 = !DILocation(line: 51, column: 5, scope: !70)
196 !72 = !DILocation(line: 59, column: 16, scope: !73)
197 !73 = distinct !DILexicalBlock(scope: !62, file: !3, line: 58, column: 19)
198 !74 = !DILocation(line: 59, column: 12, scope: !73)
199 !75 = !DILocation(line: 59, column: 9, scope: !73)
200 !76 = !DILocation(line: 63, column: 3, scope: !54)