1; RUN: opt < %s -sample-profile -sample-profile-file=%S/Inputs/remarks.prof -S -pass-remarks=sample-profile -pass-remarks-output=%t.opt.yaml 2>&1 | FileCheck %s 2; RUN: FileCheck %s -check-prefix=YAML < %t.opt.yaml 3; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/remarks.prof -S -pass-remarks=sample-profile -pass-remarks-output=%t.opt.yaml 2>&1 | FileCheck %s 4; RUN: FileCheck %s -check-prefix=YAML < %t.opt.yaml 5 6; Original test case. 7; 8; 1 #include <stdlib.h> 9; 2 10; 3 long long foo() { 11; 4 long long int sum = 0; 12; 5 for (int i = 0; i < 500000000; i++) 13; 6 if (i < 1000) 14; 7 sum -= i; 15; 8 else 16; 9 sum += -i * rand(); 17; 10 return sum; 18; 11 } 19; 12 20; 13 int main() { return foo() > 0; } 21 22; We are expecting foo() to be inlined in main() (almost all the cycles are 23; spent inside foo). 24; CHECK: remark: remarks.cc:13:21: inlined hot callee '_Z3foov' into 'main' 25 26; The back edge for the loop is the hottest edge in the loop subgraph. 27; CHECK: remark: remarks.cc:6:9: most popular destination for conditional branches at remarks.cc:5:3 28 29; The predicate almost always chooses the 'else' branch. 30; CHECK: remark: remarks.cc:9:15: most popular destination for conditional branches at remarks.cc:6:9 31 32; Checking to see if YAML file is generated and contains remarks 33;YAML: --- !Passed 34;YAML-NEXT: Pass: sample-profile 35;YAML-NEXT: Name: HotInline 36;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 13, Column: 21 } 37;YAML-NEXT: Function: main 38;YAML-NEXT: Args: 39;YAML-NEXT: - String: 'inlined hot callee ''' 40;YAML-NEXT: - Callee: _Z3foov 41;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 3, Column: 0 } 42;YAML-NEXT: - String: ''' into ''' 43;YAML-NEXT: - Caller: main 44;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 13, Column: 0 } 45;YAML-NEXT: - String: '''' 46;YAML-NEXT: ... 47;YAML: --- !Analysis 48;YAML-NEXT: Pass: sample-profile 49;YAML-NEXT: Name: AppliedSamples 50;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 5, Column: 8 } 51;YAML-NEXT: Function: main 52;YAML-NEXT: Args: 53;YAML-NEXT: - String: 'Applied ' 54;YAML-NEXT: - NumSamples: '18305' 55;YAML-NEXT: - String: ' samples from profile (offset: ' 56;YAML-NEXT: - LineOffset: '2' 57;YAML-NEXT: - String: ')' 58;YAML-NEXT: ... 59;YAML: --- !Passed 60;YAML-NEXT: Pass: sample-profile 61;YAML-NEXT: Name: PopularDest 62;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 6, Column: 9 } 63;YAML-NEXT: Function: main 64;YAML-NEXT: Args: 65;YAML-NEXT: - String: 'most popular destination for conditional branches at ' 66;YAML-NEXT: - CondBranchesLoc: 'remarks.cc:5:3' 67;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 5, Column: 3 } 68;YAML-NEXT: ... 69 70; Function Attrs: nounwind uwtable 71define i64 @_Z3foov() #0 !dbg !4 { 72entry: 73 %sum = alloca i64, align 8 74 %i = alloca i32, align 4 75 %0 = bitcast i64* %sum to i8*, !dbg !19 76 call void @llvm.lifetime.start.p0i8(i64 8, i8* %0) #4, !dbg !19 77 call void @llvm.dbg.declare(metadata i64* %sum, metadata !9, metadata !20), !dbg !21 78 store i64 0, i64* %sum, align 8, !dbg !21, !tbaa !22 79 %1 = bitcast i32* %i to i8*, !dbg !26 80 call void @llvm.lifetime.start.p0i8(i64 4, i8* %1) #4, !dbg !26 81 call void @llvm.dbg.declare(metadata i32* %i, metadata !10, metadata !20), !dbg !27 82 store i32 0, i32* %i, align 4, !dbg !27, !tbaa !28 83 br label %for.cond, !dbg !26 84 85for.cond: ; preds = %for.inc, %entry 86 %2 = load i32, i32* %i, align 4, !dbg !30, !tbaa !28 87 %cmp = icmp slt i32 %2, 500000000, !dbg !34 88 br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !35 89 90for.cond.cleanup: ; preds = %for.cond 91 %3 = bitcast i32* %i to i8*, !dbg !36 92 call void @llvm.lifetime.end.p0i8(i64 4, i8* %3) #4, !dbg !36 93 br label %for.end 94 95for.body: ; preds = %for.cond 96 %4 = load i32, i32* %i, align 4, !dbg !38, !tbaa !28 97 %cmp1 = icmp slt i32 %4, 1000, !dbg !40 98 br i1 %cmp1, label %if.then, label %if.else, !dbg !41 99 100if.then: ; preds = %for.body 101 %5 = load i32, i32* %i, align 4, !dbg !42, !tbaa !28 102 %conv = sext i32 %5 to i64, !dbg !42 103 %6 = load i64, i64* %sum, align 8, !dbg !43, !tbaa !22 104 %sub = sub nsw i64 %6, %conv, !dbg !43 105 store i64 %sub, i64* %sum, align 8, !dbg !43, !tbaa !22 106 br label %if.end, !dbg !44 107 108if.else: ; preds = %for.body 109 %7 = load i32, i32* %i, align 4, !dbg !45, !tbaa !28 110 %sub2 = sub nsw i32 0, %7, !dbg !46 111 %call = call i32 @rand() #4, !dbg !47 112 %mul = mul nsw i32 %sub2, %call, !dbg !48 113 %conv3 = sext i32 %mul to i64, !dbg !46 114 %8 = load i64, i64* %sum, align 8, !dbg !49, !tbaa !22 115 %add = add nsw i64 %8, %conv3, !dbg !49 116 store i64 %add, i64* %sum, align 8, !dbg !49, !tbaa !22 117 br label %if.end 118 119if.end: ; preds = %if.else, %if.then 120 br label %for.inc, !dbg !50 121 122for.inc: ; preds = %if.end 123 %9 = load i32, i32* %i, align 4, !dbg !51, !tbaa !28 124 %inc = add nsw i32 %9, 1, !dbg !51 125 store i32 %inc, i32* %i, align 4, !dbg !51, !tbaa !28 126 br label %for.cond, !dbg !52 127 128for.end: ; preds = %for.cond.cleanup 129 %10 = load i64, i64* %sum, align 8, !dbg !53, !tbaa !22 130 %11 = bitcast i64* %sum to i8*, !dbg !54 131 call void @llvm.lifetime.end.p0i8(i64 8, i8* %11) #4, !dbg !54 132 ret i64 %10, !dbg !55 133} 134 135; Function Attrs: nounwind argmemonly 136declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1 137 138; Function Attrs: nounwind readnone 139declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 140 141; Function Attrs: nounwind 142declare i32 @rand() #3 143 144; Function Attrs: nounwind argmemonly 145declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1 146 147; Function Attrs: nounwind uwtable 148define i32 @main() #0 !dbg !13 { 149entry: 150 %retval = alloca i32, align 4 151 store i32 0, i32* %retval, align 4 152 %call = call i64 @_Z3foov(), !dbg !56 153 %cmp = icmp sgt i64 %call, 0, !dbg !57 154 %conv = zext i1 %cmp to i32, !dbg !56 155 ret i32 %conv, !dbg !58 156} 157 158attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } 159attributes #1 = { nounwind argmemonly } 160attributes #2 = { nounwind readnone } 161attributes #3 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } 162attributes #4 = { nounwind } 163 164!llvm.dbg.cu = !{!0} 165!llvm.module.flags = !{!16, !17} 166!llvm.ident = !{!18} 167 168!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 251041) (llvm/trunk 251053)", isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug, enums: !2) 169!1 = !DIFile(filename: "remarks.cc", directory: ".") 170!2 = !{} 171!4 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 3, type: !5, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8) 172!5 = !DISubroutineType(types: !6) 173!6 = !{!7} 174!7 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed) 175!8 = !{!9, !10} 176!9 = !DILocalVariable(name: "sum", scope: !4, file: !1, line: 4, type: !7) 177!10 = !DILocalVariable(name: "i", scope: !11, file: !1, line: 5, type: !12) 178!11 = distinct !DILexicalBlock(scope: !4, file: !1, line: 5, column: 3) 179!12 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 180!13 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 13, type: !14, isLocal: false, isDefinition: true, scopeLine: 13, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2) 181!14 = !DISubroutineType(types: !15) 182!15 = !{!12} 183!16 = !{i32 2, !"Dwarf Version", i32 4} 184!17 = !{i32 2, !"Debug Info Version", i32 3} 185!18 = !{!"clang version 3.8.0 (trunk 251041) (llvm/trunk 251053)"} 186!19 = !DILocation(line: 4, column: 3, scope: !4) 187!20 = !DIExpression() 188!21 = !DILocation(line: 4, column: 17, scope: !4) 189!22 = !{!23, !23, i64 0} 190!23 = !{!"long long", !24, i64 0} 191!24 = !{!"omnipotent char", !25, i64 0} 192!25 = !{!"Simple C/C++ TBAA"} 193!26 = !DILocation(line: 5, column: 8, scope: !11) 194!27 = !DILocation(line: 5, column: 12, scope: !11) 195!28 = !{!29, !29, i64 0} 196!29 = !{!"int", !24, i64 0} 197!30 = !DILocation(line: 5, column: 19, scope: !31) 198!31 = !DILexicalBlockFile(scope: !32, file: !1, discriminator: 3) 199!32 = !DILexicalBlockFile(scope: !33, file: !1, discriminator: 1) 200!33 = distinct !DILexicalBlock(scope: !11, file: !1, line: 5, column: 3) 201!34 = !DILocation(line: 5, column: 21, scope: !33) 202!35 = !DILocation(line: 5, column: 3, scope: !11) 203!36 = !DILocation(line: 5, column: 3, scope: !37) 204!37 = !DILexicalBlockFile(scope: !33, file: !1, discriminator: 2) 205!38 = !DILocation(line: 6, column: 9, scope: !39) 206!39 = distinct !DILexicalBlock(scope: !33, file: !1, line: 6, column: 9) 207!40 = !DILocation(line: 6, column: 11, scope: !39) 208!41 = !DILocation(line: 6, column: 9, scope: !33) 209!42 = !DILocation(line: 7, column: 14, scope: !39) 210!43 = !DILocation(line: 7, column: 11, scope: !39) 211!44 = !DILocation(line: 7, column: 7, scope: !39) 212!45 = !DILocation(line: 9, column: 15, scope: !39) 213!46 = !DILocation(line: 9, column: 14, scope: !39) 214!47 = !DILocation(line: 9, column: 19, scope: !39) 215!48 = !DILocation(line: 9, column: 17, scope: !39) 216!49 = !DILocation(line: 9, column: 11, scope: !39) 217!50 = !DILocation(line: 6, column: 13, scope: !39) 218!51 = !DILocation(line: 5, column: 35, scope: !33) 219!52 = !DILocation(line: 5, column: 3, scope: !33) 220!53 = !DILocation(line: 10, column: 10, scope: !4) 221!54 = !DILocation(line: 11, column: 1, scope: !4) 222!55 = !DILocation(line: 10, column: 3, scope: !4) 223!56 = !DILocation(line: 13, column: 21, scope: !13) 224!57 = !DILocation(line: 13, column: 27, scope: !13) 225!58 = !DILocation(line: 13, column: 14, scope: !13) 226