1 ; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/pseudo-probe-icp-factor.prof -S -sample-profile-prioritized-inline=1 2>&1 | FileCheck %s
3 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
4 target triple = "x86_64-unknown-linux-gnu"
6 @.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
8 ; Function Attrs: nounwind uwtable
9 define dso_local i32 @bar(i32 %arg) #0 !dbg !13 {
11 %i = alloca i32, align 4
12 store i32 %arg, ptr %i, align 4, !tbaa !19
13 call void @llvm.dbg.declare(metadata ptr %i, metadata !18, metadata !DIExpression()), !dbg !23
14 call void @llvm.pseudoprobe(i64 -2012135647395072713, i64 1, i32 0, i64 -1), !dbg !24
15 %i1 = load i32, ptr %i, align 4, !dbg !24, !tbaa !19
16 %i2 = add nsw i32 %i1, 1, !dbg !24
17 store i32 %i2, ptr %i, align 4, !dbg !24, !tbaa !19
18 %i3 = load i32, ptr %i, align 4, !dbg !25, !tbaa !19
19 %i4 = add nsw i32 %i3, 1, !dbg !26
23 ; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
24 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
26 ; Function Attrs: nounwind uwtable
27 define dso_local i32 @baz(i32 %arg) #0 !dbg !28 {
29 %i = alloca i32, align 4
30 store i32 %arg, ptr %i, align 4, !tbaa !19
31 call void @llvm.dbg.declare(metadata ptr %i, metadata !30, metadata !DIExpression()), !dbg !31
32 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 1, i32 0, i64 -1), !dbg !32
33 %i1 = load i32, ptr %i, align 4, !dbg !32, !tbaa !19
34 %i2 = add nsw i32 %i1, 10, !dbg !33
38 ; Function Attrs: nounwind uwtable
39 define dso_local i32 @foo(i32 %arg, ptr %arg1) #0 !dbg !35 {
41 %i = alloca i32, align 4
42 %i2 = alloca ptr, align 8
43 store i32 %arg, ptr %i, align 4, !tbaa !19
44 call void @llvm.dbg.declare(metadata ptr %i, metadata !42, metadata !DIExpression()), !dbg !44
45 store ptr %arg1, ptr %i2, align 8, !tbaa !45
46 call void @llvm.dbg.declare(metadata ptr %i2, metadata !43, metadata !DIExpression()), !dbg !47
47 call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1), !dbg !48
48 %i3 = load ptr, ptr %i2, align 8, !dbg !48, !tbaa !45
49 %i4 = load i32, ptr %i, align 4, !dbg !49, !tbaa !19
50 %i6 = call i32 (i32, ...) %i3(i32 %i4), !dbg !50
54 ; Function Attrs: nounwind uwtable
55 define dso_local i32 @main() #0 !dbg !53 {
57 %i = alloca i32, align 4
58 %i1 = alloca ptr, align 8
59 %i2 = alloca i32, align 4
60 %i3 = alloca i32, align 4
61 store i32 0, ptr %i, align 4
62 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 1, i32 0, i64 -1), !dbg !62
63 call void @llvm.lifetime.start.p0(i64 8, ptr %i1), !dbg !62
64 call void @llvm.dbg.declare(metadata ptr %i1, metadata !57, metadata !DIExpression()), !dbg !63
65 call void @llvm.lifetime.start.p0(i64 4, ptr %i2), !dbg !64
66 call void @llvm.dbg.declare(metadata ptr %i2, metadata !59, metadata !DIExpression()), !dbg !65
67 store i32 0, ptr %i2, align 4, !dbg !65, !tbaa !19
68 call void @llvm.lifetime.start.p0(i64 4, ptr %i3), !dbg !66
69 call void @llvm.dbg.declare(metadata ptr %i3, metadata !60, metadata !DIExpression()), !dbg !67
70 store i32 0, ptr %i3, align 4, !dbg !67, !tbaa !19
71 br label %bb7, !dbg !66
73 bb7: ; preds = %bb25, %bb
74 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 2, i32 0, i64 -1), !dbg !68
75 %i8 = load i32, ptr %i3, align 4, !dbg !68, !tbaa !19
76 %i9 = icmp slt i32 %i8, 1000000000, !dbg !70
77 br i1 %i9, label %bb12, label %bb10, !dbg !71
80 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 3, i32 0, i64 -1), !dbg !72
81 call void @llvm.lifetime.end.p0(i64 4, ptr %i3), !dbg !72
85 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 4, i32 0, i64 -1), !dbg !73
86 %i13 = load i32, ptr %i3, align 4, !dbg !73, !tbaa !19
87 %i14 = srem i32 %i13, 100, !dbg !76
88 %i15 = icmp eq i32 %i14, 0, !dbg !77
89 br i1 %i15, label %bb16, label %bb17, !dbg !78
92 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 5, i32 0, i64 -1), !dbg !79
93 store ptr @bar, ptr %i1, align 8, !dbg !79, !tbaa !45
94 br label %bb18, !dbg !80
97 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 6, i32 0, i64 -1), !dbg !81
98 store ptr @baz, ptr %i1, align 8, !dbg !81, !tbaa !45
101 bb18: ; preds = %bb17, %bb16
102 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 7, i32 0, i64 -1), !dbg !82
103 %i19 = load i32, ptr %i3, align 4, !dbg !82, !tbaa !19
104 %i20 = load ptr, ptr %i1, align 8, !dbg !83, !tbaa !45
105 %i22 = call i32 @foo(i32 %i19, ptr %i20), !dbg !84
106 %i23 = load i32, ptr %i2, align 4, !dbg !86, !tbaa !19
107 %i24 = add nsw i32 %i23, %i22, !dbg !86
108 store i32 %i24, ptr %i2, align 4, !dbg !86, !tbaa !19
109 br label %bb25, !dbg !87
111 bb25: ; preds = %bb18
112 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 8, i32 0, i64 -1), !dbg !88
113 %i26 = load i32, ptr %i3, align 4, !dbg !88, !tbaa !19
114 %i27 = add nsw i32 %i26, 1, !dbg !88
115 store i32 %i27, ptr %i3, align 4, !dbg !88, !tbaa !19
116 br label %bb7, !dbg !72, !llvm.loop !89
118 bb28: ; preds = %bb10
119 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 9, i32 0, i64 -1), !dbg !92
120 %i29 = load i32, ptr %i2, align 4, !dbg !92, !tbaa !19
121 %i30 = call i32 (ptr, ...) @printf(ptr @.str, i32 %i29), !dbg !93
122 call void @llvm.lifetime.end.p0(i64 4, ptr %i2), !dbg !95
123 call void @llvm.lifetime.end.p0(i64 8, ptr %i1), !dbg !95
127 ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
128 declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2
130 ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
131 declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2
133 declare dso_local i32 @printf(ptr, ...)
135 ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite)
136 declare void @llvm.pseudoprobe(i64, i64, i32, i64) #3
138 attributes #0 = { nounwind uwtable "disable-tail-calls"="true" "frame-pointer"="all" "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"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" "unsafe-fp-math"="false" "use-sample-profile" "use-soft-float"="false" }
139 attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
140 attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
141 attributes #3 = { nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite) }
144 !llvm.module.flags = !{!3, !4, !5, !6, !7}
146 !llvm.pseudo_probe_desc = !{!9, !10, !11, !12}
148 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 13.0.06)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
149 !1 = !DIFile(filename: "test.c", directory: "")
151 !3 = !{i32 7, !"Dwarf Version", i32 4}
152 !4 = !{i32 2, !"Debug Info Version", i32 3}
153 !5 = !{i32 1, !"wchar_size", i32 4}
154 !6 = !{i32 1, !"ThinLTO", i32 0}
155 !7 = !{i32 1, !"EnableSplitLTOUnit", i32 1}
156 !8 = !{!"clang version 13.0.0 "}
157 !9 = !{i64 -2012135647395072713, i64 4294967295, !"bar", null}
158 !10 = !{i64 7546896869197086323, i64 4294967295, !"baz", null}
159 !11 = !{i64 6699318081062747564, i64 281479271677951, !"foo", null}
160 !12 = !{i64 -2624081020897602054, i64 563125815542069, !"main", null}
161 !13 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 2, type: !14, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !17)
162 !14 = !DISubroutineType(types: !15)
164 !16 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
166 !18 = !DILocalVariable(name: "x", arg: 1, scope: !13, file: !1, line: 2, type: !16)
167 !19 = !{!20, !20, i64 0}
168 !20 = !{!"int", !21, i64 0}
169 !21 = !{!"omnipotent char", !22, i64 0}
170 !22 = !{!"Simple C/C++ TBAA"}
171 !23 = !DILocation(line: 2, column: 13, scope: !13)
172 !24 = !DILocation(line: 4, column: 7, scope: !13)
173 !25 = !DILocation(line: 5, column: 12, scope: !13)
174 !26 = !DILocation(line: 5, column: 14, scope: !13)
175 !27 = !DILocation(line: 5, column: 5, scope: !13)
176 !28 = distinct !DISubprogram(name: "baz", scope: !1, file: !1, line: 9, type: !14, scopeLine: 9, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !29)
178 !30 = !DILocalVariable(name: "x", arg: 1, scope: !28, file: !1, line: 9, type: !16)
179 !31 = !DILocation(line: 9, column: 13, scope: !28)
180 !32 = !DILocation(line: 10, column: 10, scope: !28)
181 !33 = !DILocation(line: 10, column: 12, scope: !28)
182 !34 = !DILocation(line: 10, column: 3, scope: !28)
183 !35 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 13, type: !36, scopeLine: 13, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !41)
184 !36 = !DISubroutineType(types: !37)
185 !37 = !{!16, !16, !38}
186 !38 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !39, size: 64)
187 !39 = !DISubroutineType(types: !40)
190 !42 = !DILocalVariable(name: "x", arg: 1, scope: !35, file: !1, line: 13, type: !16)
191 !43 = !DILocalVariable(name: "f", arg: 2, scope: !35, file: !1, line: 13, type: !38)
192 !44 = !DILocation(line: 13, column: 13, scope: !35)
193 !45 = !{!46, !46, i64 0}
194 !46 = !{!"any pointer", !21, i64 0}
195 !47 = !DILocation(line: 13, column: 22, scope: !35)
196 !48 = !DILocation(line: 14, column: 10, scope: !35)
197 !49 = !DILocation(line: 14, column: 12, scope: !35)
198 !50 = !DILocation(line: 14, column: 10, scope: !51)
199 ;; A discriminator of 108527639 which is 0x6780017 in hexdecimal, stands for an indirect call probe
200 ;; with an index of 2 and probe factor of 0.79.
201 !51 = !DILexicalBlockFile(scope: !35, file: !1, discriminator: 108527639)
202 !52 = !DILocation(line: 14, column: 3, scope: !35)
203 !53 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 17, type: !54, scopeLine: 18, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !56)
204 !54 = !DISubroutineType(types: !55)
206 !56 = !{!57, !59, !60}
207 !57 = !DILocalVariable(name: "x", scope: !53, file: !1, line: 19, type: !58)
208 !58 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 64)
209 !59 = !DILocalVariable(name: "sum", scope: !53, file: !1, line: 25, type: !16)
210 !60 = !DILocalVariable(name: "i", scope: !61, file: !1, line: 26, type: !16)
211 !61 = distinct !DILexicalBlock(scope: !53, file: !1, line: 26, column: 5)
212 !62 = !DILocation(line: 19, column: 3, scope: !53)
213 !63 = !DILocation(line: 19, column: 9, scope: !53)
214 !64 = !DILocation(line: 25, column: 5, scope: !53)
215 !65 = !DILocation(line: 25, column: 9, scope: !53)
216 !66 = !DILocation(line: 26, column: 10, scope: !61)
217 !67 = !DILocation(line: 26, column: 14, scope: !61)
218 !68 = !DILocation(line: 26, column: 21, scope: !69)
219 !69 = distinct !DILexicalBlock(scope: !61, file: !1, line: 26, column: 5)
220 !70 = !DILocation(line: 26, column: 23, scope: !69)
221 !71 = !DILocation(line: 26, column: 5, scope: !61)
222 !72 = !DILocation(line: 26, column: 5, scope: !69)
223 !73 = !DILocation(line: 27, column: 10, scope: !74)
224 !74 = distinct !DILexicalBlock(scope: !75, file: !1, line: 27, column: 10)
225 !75 = distinct !DILexicalBlock(scope: !69, file: !1, line: 26, column: 45)
226 !76 = !DILocation(line: 27, column: 12, scope: !74)
227 !77 = !DILocation(line: 27, column: 19, scope: !74)
228 !78 = !DILocation(line: 27, column: 10, scope: !75)
229 !79 = !DILocation(line: 28, column: 11, scope: !74)
230 !80 = !DILocation(line: 28, column: 9, scope: !74)
231 !81 = !DILocation(line: 30, column: 11, scope: !74)
232 !82 = !DILocation(line: 32, column: 17, scope: !75)
233 !83 = !DILocation(line: 32, column: 20, scope: !75)
234 !84 = !DILocation(line: 32, column: 13, scope: !85)
235 ;; A discriminator of 116916311 which is 0x6f80057 in hexdecimal, stands for an indirect call probe
236 ;; with an index of 10 and probe factor of 0.95.
237 !85 = !DILexicalBlockFile(scope: !75, file: !1, discriminator: 116916311)
238 !86 = !DILocation(line: 32, column: 11, scope: !75)
239 !87 = !DILocation(line: 33, column: 5, scope: !75)
240 !88 = !DILocation(line: 26, column: 41, scope: !69)
241 !89 = distinct !{!89, !71, !90, !91}
242 !90 = !DILocation(line: 33, column: 5, scope: !61)
243 !91 = !{!"llvm.loop.mustprogress"}
244 !92 = !DILocation(line: 34, column: 21, scope: !53)
245 !93 = !DILocation(line: 34, column: 5, scope: !94)
246 !94 = !DILexicalBlockFile(scope: !53, file: !1, discriminator: 104333335)
247 !95 = !DILocation(line: 36, column: 1, scope: !53)
248 !96 = !DILocation(line: 35, column: 5, scope: !53)
250 ; CHECK: define dso_local i32 @main
251 ; CHECK: %{{.+}} = call i32 (i32, ...) %{{.+}}(i32 %{{.+}}) #[[#]], !dbg ![[#DBGID:]], !prof ![[#PROF:]]
253 ;; A discriminator of 106430487 which is 0x6580017 in hexdecimal, stands for an indirect call probe
254 ;; with an index of 2 and probe factor of 0.75, which is from 0.95 * 0.79.
255 ; CHECK: ![[#DBGID]] = !DILocation(line: [[#]], column: [[#]], scope: ![[#SCOPE:]], inlinedAt: ![[#]])
256 ; CHECK: ![[#SCOPE]] = !DILexicalBlockFile(scope: ![[#]], file: ![[#]], discriminator: 106430487)
258 ;; The remaining count of the second target (bar) should be from the original count multiplied by two callsite
259 ;; factors, i.e, roughly 11259 * 0.95 * 0.79 = 8444.
260 ; CHECK: ![[#PROF]] = !{!"VP", i32 0, i64 8444, i64 7546896869197086323, i64 -1, i64 -2012135647395072713, i64 8444}