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 2 3target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 4target triple = "x86_64-unknown-linux-gnu" 5 6@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1 7 8; Function Attrs: nounwind uwtable 9define dso_local i32 @bar(i32 %0) #0 !dbg !13 { 10 %2 = alloca i32, align 4 11 store i32 %0, i32* %2, align 4, !tbaa !19 12 call void @llvm.dbg.declare(metadata i32* %2, metadata !18, metadata !DIExpression()), !dbg !23 13 call void @llvm.pseudoprobe(i64 -2012135647395072713, i64 1, i32 0, i64 -1), !dbg !24 14 %3 = load i32, i32* %2, align 4, !dbg !24, !tbaa !19 15 %4 = add nsw i32 %3, 1, !dbg !24 16 store i32 %4, i32* %2, align 4, !dbg !24, !tbaa !19 17 %5 = load i32, i32* %2, align 4, !dbg !25, !tbaa !19 18 %6 = add nsw i32 %5, 1, !dbg !26 19 ret i32 %6, !dbg !27 20} 21 22; Function Attrs: nofree nosync nounwind readnone speculatable willreturn 23declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 24 25; Function Attrs: nounwind uwtable 26define dso_local i32 @baz(i32 %0) #0 !dbg !28 { 27 %2 = alloca i32, align 4 28 store i32 %0, i32* %2, align 4, !tbaa !19 29 call void @llvm.dbg.declare(metadata i32* %2, metadata !30, metadata !DIExpression()), !dbg !31 30 call void @llvm.pseudoprobe(i64 7546896869197086323, i64 1, i32 0, i64 -1), !dbg !32 31 %3 = load i32, i32* %2, align 4, !dbg !32, !tbaa !19 32 %4 = add nsw i32 %3, 10, !dbg !33 33 ret i32 %4, !dbg !34 34} 35 36; Function Attrs: nounwind uwtable 37define dso_local i32 @foo(i32 %0, i32 (...)* %1) #0 !dbg !35 { 38 %3 = alloca i32, align 4 39 %4 = alloca i32 (...)*, align 8 40 store i32 %0, i32* %3, align 4, !tbaa !19 41 call void @llvm.dbg.declare(metadata i32* %3, metadata !42, metadata !DIExpression()), !dbg !44 42 store i32 (...)* %1, i32 (...)** %4, align 8, !tbaa !45 43 call void @llvm.dbg.declare(metadata i32 (...)** %4, metadata !43, metadata !DIExpression()), !dbg !47 44 call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1), !dbg !48 45 %5 = load i32 (...)*, i32 (...)** %4, align 8, !dbg !48, !tbaa !45 46 %6 = load i32, i32* %3, align 4, !dbg !49, !tbaa !19 47 %7 = bitcast i32 (...)* %5 to i32 (i32, ...)*, !dbg !48 48 %8 = call i32 (i32, ...) %7(i32 %6), !dbg !50 49 ret i32 %8, !dbg !52 50} 51 52; Function Attrs: nounwind uwtable 53define dso_local i32 @main() #0 !dbg !53 { 54 %1 = alloca i32, align 4 55 %2 = alloca i32 (i32)*, align 8 56 %3 = alloca i32, align 4 57 %4 = alloca i32, align 4 58 store i32 0, i32* %1, align 4 59 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 1, i32 0, i64 -1), !dbg !62 60 %5 = bitcast i32 (i32)** %2 to i8*, !dbg !62 61 call void @llvm.lifetime.start.p0i8(i64 8, i8* %5) #5, !dbg !62 62 call void @llvm.dbg.declare(metadata i32 (i32)** %2, metadata !57, metadata !DIExpression()), !dbg !63 63 %6 = bitcast i32* %3 to i8*, !dbg !64 64 call void @llvm.lifetime.start.p0i8(i64 4, i8* %6) #5, !dbg !64 65 call void @llvm.dbg.declare(metadata i32* %3, metadata !59, metadata !DIExpression()), !dbg !65 66 store i32 0, i32* %3, align 4, !dbg !65, !tbaa !19 67 %7 = bitcast i32* %4 to i8*, !dbg !66 68 call void @llvm.lifetime.start.p0i8(i64 4, i8* %7) #5, !dbg !66 69 call void @llvm.dbg.declare(metadata i32* %4, metadata !60, metadata !DIExpression()), !dbg !67 70 store i32 0, i32* %4, align 4, !dbg !67, !tbaa !19 71 br label %8, !dbg !66 72 738: ; preds = %26, %0 74 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 2, i32 0, i64 -1), !dbg !68 75 %9 = load i32, i32* %4, align 4, !dbg !68, !tbaa !19 76 %10 = icmp slt i32 %9, 1000000000, !dbg !70 77 br i1 %10, label %13, label %11, !dbg !71 78 7911: ; preds = %8 80 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 3, i32 0, i64 -1), !dbg !72 81 %12 = bitcast i32* %4 to i8*, !dbg !72 82 call void @llvm.lifetime.end.p0i8(i64 4, i8* %12) #5, !dbg !72 83 br label %29 84 8513: ; preds = %8 86 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 4, i32 0, i64 -1), !dbg !73 87 %14 = load i32, i32* %4, align 4, !dbg !73, !tbaa !19 88 %15 = srem i32 %14, 100, !dbg !76 89 %16 = icmp eq i32 %15, 0, !dbg !77 90 br i1 %16, label %17, label %18, !dbg !78 91 9217: ; preds = %13 93 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 5, i32 0, i64 -1), !dbg !79 94 store i32 (i32)* @bar, i32 (i32)** %2, align 8, !dbg !79, !tbaa !45 95 br label %19, !dbg !80 96 9718: ; preds = %13 98 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 6, i32 0, i64 -1), !dbg !81 99 store i32 (i32)* @baz, i32 (i32)** %2, align 8, !dbg !81, !tbaa !45 100 br label %19 101 10219: ; preds = %18, %17 103 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 7, i32 0, i64 -1), !dbg !82 104 %20 = load i32, i32* %4, align 4, !dbg !82, !tbaa !19 105 %21 = load i32 (i32)*, i32 (i32)** %2, align 8, !dbg !83, !tbaa !45 106 %22 = bitcast i32 (i32)* %21 to i32 (...)*, !dbg !83 107 %23 = call i32 @foo(i32 %20, i32 (...)* %22), !dbg !84 108 %24 = load i32, i32* %3, align 4, !dbg !86, !tbaa !19 109 %25 = add nsw i32 %24, %23, !dbg !86 110 store i32 %25, i32* %3, align 4, !dbg !86, !tbaa !19 111 br label %26, !dbg !87 112 11326: ; preds = %19 114 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 8, i32 0, i64 -1), !dbg !88 115 %27 = load i32, i32* %4, align 4, !dbg !88, !tbaa !19 116 %28 = add nsw i32 %27, 1, !dbg !88 117 store i32 %28, i32* %4, align 4, !dbg !88, !tbaa !19 118 br label %8, !dbg !72, !llvm.loop !89 119 12029: ; preds = %11 121 call void @llvm.pseudoprobe(i64 -2624081020897602054, i64 9, i32 0, i64 -1), !dbg !92 122 %30 = load i32, i32* %3, align 4, !dbg !92, !tbaa !19 123 %31 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i32 %30), !dbg !93 124 %32 = bitcast i32* %3 to i8*, !dbg !95 125 call void @llvm.lifetime.end.p0i8(i64 4, i8* %32) #5, !dbg !95 126 %33 = bitcast i32 (i32)** %2 to i8*, !dbg !95 127 call void @llvm.lifetime.end.p0i8(i64 8, i8* %33) #5, !dbg !95 128 ret i32 0, !dbg !96 129} 130 131; Function Attrs: argmemonly nofree nosync nounwind willreturn 132declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture) #2 133 134; Function Attrs: argmemonly nofree nosync nounwind willreturn 135declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture) #2 136 137declare dso_local i32 @printf(i8*, ...) #3 138 139; Function Attrs: inaccessiblememonly nounwind willreturn 140declare void @llvm.pseudoprobe(i64, i64, i32, i64) #4 141 142attributes #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" } 143 144!llvm.dbg.cu = !{!0} 145!llvm.module.flags = !{!3, !4, !5, !6, !7} 146!llvm.ident = !{!8} 147!llvm.pseudo_probe_desc = !{!9, !10, !11, !12} 148 149!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) 150!1 = !DIFile(filename: "test.c", directory: "") 151!2 = !{} 152!3 = !{i32 7, !"Dwarf Version", i32 4} 153!4 = !{i32 2, !"Debug Info Version", i32 3} 154!5 = !{i32 1, !"wchar_size", i32 4} 155!6 = !{i32 1, !"ThinLTO", i32 0} 156!7 = !{i32 1, !"EnableSplitLTOUnit", i32 1} 157!8 = !{!"clang version 13.0.0 "} 158!9 = !{i64 -2012135647395072713, i64 4294967295, !"bar", null} 159!10 = !{i64 7546896869197086323, i64 4294967295, !"baz", null} 160!11 = !{i64 6699318081062747564, i64 281479271677951, !"foo", null} 161!12 = !{i64 -2624081020897602054, i64 563125815542069, !"main", null} 162!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) 163!14 = !DISubroutineType(types: !15) 164!15 = !{!16, !16} 165!16 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 166!17 = !{!18} 167!18 = !DILocalVariable(name: "x", arg: 1, scope: !13, file: !1, line: 2, type: !16) 168!19 = !{!20, !20, i64 0} 169!20 = !{!"int", !21, i64 0} 170!21 = !{!"omnipotent char", !22, i64 0} 171!22 = !{!"Simple C/C++ TBAA"} 172!23 = !DILocation(line: 2, column: 13, scope: !13) 173!24 = !DILocation(line: 4, column: 7, scope: !13) 174!25 = !DILocation(line: 5, column: 12, scope: !13) 175!26 = !DILocation(line: 5, column: 14, scope: !13) 176!27 = !DILocation(line: 5, column: 5, scope: !13) 177!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!29 = !{!30} 179!30 = !DILocalVariable(name: "x", arg: 1, scope: !28, file: !1, line: 9, type: !16) 180!31 = !DILocation(line: 9, column: 13, scope: !28) 181!32 = !DILocation(line: 10, column: 10, scope: !28) 182!33 = !DILocation(line: 10, column: 12, scope: !28) 183!34 = !DILocation(line: 10, column: 3, scope: !28) 184!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) 185!36 = !DISubroutineType(types: !37) 186!37 = !{!16, !16, !38} 187!38 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !39, size: 64) 188!39 = !DISubroutineType(types: !40) 189!40 = !{!16, null} 190!41 = !{!42, !43} 191!42 = !DILocalVariable(name: "x", arg: 1, scope: !35, file: !1, line: 13, type: !16) 192!43 = !DILocalVariable(name: "f", arg: 2, scope: !35, file: !1, line: 13, type: !38) 193!44 = !DILocation(line: 13, column: 13, scope: !35) 194!45 = !{!46, !46, i64 0} 195!46 = !{!"any pointer", !21, i64 0} 196!47 = !DILocation(line: 13, column: 22, scope: !35) 197!48 = !DILocation(line: 14, column: 10, scope: !35) 198!49 = !DILocation(line: 14, column: 12, scope: !35) 199!50 = !DILocation(line: 14, column: 10, scope: !51) 200;; A discriminator of 108527639 which is 0x6780017 in hexdecimal, stands for an indirect call probe 201;; with an index of 2 and probe factor of 0.79. 202!51 = !DILexicalBlockFile(scope: !35, file: !1, discriminator: 108527639) 203!52 = !DILocation(line: 14, column: 3, scope: !35) 204!53 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 17, type: !54, scopeLine: 18, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !56) 205!54 = !DISubroutineType(types: !55) 206!55 = !{!16} 207!56 = !{!57, !59, !60} 208!57 = !DILocalVariable(name: "x", scope: !53, file: !1, line: 19, type: !58) 209!58 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 64) 210!59 = !DILocalVariable(name: "sum", scope: !53, file: !1, line: 25, type: !16) 211!60 = !DILocalVariable(name: "i", scope: !61, file: !1, line: 26, type: !16) 212!61 = distinct !DILexicalBlock(scope: !53, file: !1, line: 26, column: 5) 213!62 = !DILocation(line: 19, column: 3, scope: !53) 214!63 = !DILocation(line: 19, column: 9, scope: !53) 215!64 = !DILocation(line: 25, column: 5, scope: !53) 216!65 = !DILocation(line: 25, column: 9, scope: !53) 217!66 = !DILocation(line: 26, column: 10, scope: !61) 218!67 = !DILocation(line: 26, column: 14, scope: !61) 219!68 = !DILocation(line: 26, column: 21, scope: !69) 220!69 = distinct !DILexicalBlock(scope: !61, file: !1, line: 26, column: 5) 221!70 = !DILocation(line: 26, column: 23, scope: !69) 222!71 = !DILocation(line: 26, column: 5, scope: !61) 223!72 = !DILocation(line: 26, column: 5, scope: !69) 224!73 = !DILocation(line: 27, column: 10, scope: !74) 225!74 = distinct !DILexicalBlock(scope: !75, file: !1, line: 27, column: 10) 226!75 = distinct !DILexicalBlock(scope: !69, file: !1, line: 26, column: 45) 227!76 = !DILocation(line: 27, column: 12, scope: !74) 228!77 = !DILocation(line: 27, column: 19, scope: !74) 229!78 = !DILocation(line: 27, column: 10, scope: !75) 230!79 = !DILocation(line: 28, column: 11, scope: !74) 231!80 = !DILocation(line: 28, column: 9, scope: !74) 232!81 = !DILocation(line: 30, column: 11, scope: !74) 233!82 = !DILocation(line: 32, column: 17, scope: !75) 234!83 = !DILocation(line: 32, column: 20, scope: !75) 235!84 = !DILocation(line: 32, column: 13, scope: !85) 236;; A discriminator of 116916311 which is 0x6f80057 in hexdecimal, stands for an indirect call probe 237;; with an index of 10 and probe factor of 0.95. 238!85 = !DILexicalBlockFile(scope: !75, file: !1, discriminator: 116916311) 239!86 = !DILocation(line: 32, column: 11, scope: !75) 240!87 = !DILocation(line: 33, column: 5, scope: !75) 241!88 = !DILocation(line: 26, column: 41, scope: !69) 242!89 = distinct !{!89, !71, !90, !91} 243!90 = !DILocation(line: 33, column: 5, scope: !61) 244!91 = !{!"llvm.loop.mustprogress"} 245!92 = !DILocation(line: 34, column: 21, scope: !53) 246!93 = !DILocation(line: 34, column: 5, scope: !94) 247!94 = !DILexicalBlockFile(scope: !53, file: !1, discriminator: 104333335) 248!95 = !DILocation(line: 36, column: 1, scope: !53) 249!96 = !DILocation(line: 35, column: 5, scope: !53) 250 251; CHECK: define dso_local i32 @main 252; CHECK: %[[#]] = call i32 (i32, ...) %[[#]](i32 %[[#]]) #[[#]], !dbg ![[#DBGID:]], !prof ![[#PROF:]] 253 254;; A discriminator of 106430487 which is 0x6580017 in hexdecimal, stands for an indirect call probe 255;; with an index of 2 and probe factor of 0.75, which is from 0.95 * 0.79. 256; CHECK: ![[#DBGID]] = !DILocation(line: [[#]], column: [[#]], scope: ![[#SCOPE:]], inlinedAt: ![[#]]) 257; CHECK: ![[#SCOPE]] = !DILexicalBlockFile(scope: ![[#]], file: ![[#]], discriminator: 106430487) 258 259;; The remaining count of the second target (bar) should be from the original count multiplied by two callsite 260;; factors, i.e, roughly 11259 * 0.95 * 0.79 = 8444. 261; CHECK: ![[#PROF]] = !{!"VP", i32 0, i64 8444, i64 7546896869197086323, i64 -1, i64 -2012135647395072713, i64 8444} 262