; 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 ; RUN: FileCheck %s -check-prefix=YAML < %t.opt.yaml ; 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 ; RUN: FileCheck %s -check-prefix=YAML < %t.opt.yaml ; Original test case. ; ; 1 #include ; 2 ; 3 long long foo() { ; 4 long long int sum = 0; ; 5 for (int i = 0; i < 500000000; i++) ; 6 if (i < 1000) ; 7 sum -= i; ; 8 else ; 9 sum += -i * rand(); ; 10 return sum; ; 11 } ; 12 ; 13 int main() { return foo() > 0; } ; We are expecting foo() to be inlined in main() (almost all the cycles are ; spent inside foo). ; CHECK: remark: remarks.cc:13:21: _Z3foov inlined into main to match profiling context with (cost=130, threshold=2147483647) at callsite main:0:21; ; CHECK: remark: remarks.cc:9:19: rand inlined into main to match profiling context with (cost=always): always inline attribute at callsite _Z3foov:6:19 @ main:0:21; ; The back edge for the loop is the hottest edge in the loop subgraph. ; CHECK: remark: remarks.cc:6:9: most popular destination for conditional branches at remarks.cc:5:3 ; The predicate almost always chooses the 'else' branch. ; CHECK: remark: remarks.cc:9:15: most popular destination for conditional branches at remarks.cc:6:9 ; Checking to see if YAML file is generated and contains remarks ;YAML: --- !Passed ;YAML-NEXT: Pass: sample-profile-inline ;YAML-NEXT: Name: Inlined ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 13, Column: 21 } ;YAML-NEXT: Function: main ;YAML-NEXT: Args: ;YAML-NEXT: - Callee: _Z3foov ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 3, Column: 0 } ;YAML-NEXT: - String: ' inlined into ' ;YAML-NEXT: - Caller: main ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 13, Column: 0 } ;YAML-NEXT: - String: ' to match profiling context' ;YAML-NEXT: - String: ' with ' ;YAML-NEXT: - String: '(cost=' ;YAML-NEXT: - Cost: '130' ;YAML-NEXT: - String: ', threshold=' ;YAML-NEXT: - Threshold: '2147483647' ;YAML-NEXT: - String: ')' ;YAML-NEXT: - String: ' at callsite ' ;YAML-NEXT: - String: main ;YAML-NEXT: - String: ':' ;YAML-NEXT: - Line: '0' ;YAML-NEXT: - String: ':' ;YAML-NEXT: - Column: '21' ;YAML-NEXT: - String: ';' ;YAML-NEXT: ... ;YAML: --- !Passed ;YAML-NEXT: Pass: sample-profile-inline ;YAML-NEXT: Name: AlwaysInline ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 9, Column: 19 } ;YAML-NEXT: Function: main ;YAML-NEXT: Args: ;YAML-NEXT: - Callee: rand ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 90, Column: 0 } ;YAML-NEXT: - String: ' inlined into ' ;YAML-NEXT: - Caller: main ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 13, Column: 0 } ;YAML-NEXT: - String: ' to match profiling context' ;YAML-NEXT: - String: ' with ' ;YAML-NEXT: - String: '(cost=always)' ;YAML-NEXT: - String: ': ' ;YAML-NEXT: - Reason: always inline attribute ;YAML-NEXT: - String: ' at callsite ' ;YAML-NEXT: - String: _Z3foov ;YAML-NEXT: - String: ':' ;YAML-NEXT: - Line: '6' ;YAML-NEXT: - String: ':' ;YAML-NEXT: - Column: '19' ;YAML-NEXT: - String: ' @ ' ;YAML-NEXT: - String: main ;YAML-NEXT: - String: ':' ;YAML-NEXT: - Line: '0' ;YAML-NEXT: - String: ':' ;YAML-NEXT: - Column: '21' ;YAML-NEXT: - String: ';' ;YAML: --- !Analysis ;YAML-NEXT: Pass: sample-profile ;YAML-NEXT: Name: AppliedSamples ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 5, Column: 8 } ;YAML-NEXT: Function: main ;YAML-NEXT: Args: ;YAML-NEXT: - String: 'Applied ' ;YAML-NEXT: - NumSamples: '18305' ;YAML-NEXT: - String: ' samples from profile (offset: ' ;YAML-NEXT: - LineOffset: '2' ;YAML-NEXT: - String: ')' ;YAML-NEXT: ... ;YAML: --- !Passed ;YAML-NEXT: Pass: sample-profile ;YAML-NEXT: Name: PopularDest ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 6, Column: 9 } ;YAML-NEXT: Function: main ;YAML-NEXT: Args: ;YAML-NEXT: - String: 'most popular destination for conditional branches at ' ;YAML-NEXT: - CondBranchesLoc: 'remarks.cc:5:3' ;YAML-NEXT: DebugLoc: { File: remarks.cc, Line: 5, Column: 3 } ;YAML-NEXT: ... ; Function Attrs: nounwind uwtable define i64 @_Z3foov() #0 !dbg !4 { entry: %sum = alloca i64, align 8 %i = alloca i32, align 4 %0 = bitcast i64* %sum to i8*, !dbg !19 call void @llvm.lifetime.start.p0i8(i64 8, i8* %0) #4, !dbg !19 call void @llvm.dbg.declare(metadata i64* %sum, metadata !9, metadata !20), !dbg !21 store i64 0, i64* %sum, align 8, !dbg !21, !tbaa !22 %1 = bitcast i32* %i to i8*, !dbg !26 call void @llvm.lifetime.start.p0i8(i64 4, i8* %1) #4, !dbg !26 call void @llvm.dbg.declare(metadata i32* %i, metadata !10, metadata !20), !dbg !27 store i32 0, i32* %i, align 4, !dbg !27, !tbaa !28 br label %for.cond, !dbg !26 for.cond: ; preds = %for.inc, %entry %2 = load i32, i32* %i, align 4, !dbg !30, !tbaa !28 %cmp = icmp slt i32 %2, 500000000, !dbg !34 br i1 %cmp, label %for.body, label %for.cond.cleanup, !dbg !35 for.cond.cleanup: ; preds = %for.cond %3 = bitcast i32* %i to i8*, !dbg !36 call void @llvm.lifetime.end.p0i8(i64 4, i8* %3) #4, !dbg !36 br label %for.end for.body: ; preds = %for.cond %4 = load i32, i32* %i, align 4, !dbg !38, !tbaa !28 %cmp1 = icmp slt i32 %4, 1000, !dbg !40 br i1 %cmp1, label %if.then, label %if.else, !dbg !41 if.then: ; preds = %for.body %5 = load i32, i32* %i, align 4, !dbg !42, !tbaa !28 %conv = sext i32 %5 to i64, !dbg !42 %6 = load i64, i64* %sum, align 8, !dbg !43, !tbaa !22 %sub = sub nsw i64 %6, %conv, !dbg !43 store i64 %sub, i64* %sum, align 8, !dbg !43, !tbaa !22 br label %if.end, !dbg !44 if.else: ; preds = %for.body %7 = load i32, i32* %i, align 4, !dbg !45, !tbaa !28 %sub2 = sub nsw i32 0, %7, !dbg !46 %call = call i32 @rand() #4, !dbg !47 %mul = mul nsw i32 %sub2, %call, !dbg !48 %conv3 = sext i32 %mul to i64, !dbg !46 %8 = load i64, i64* %sum, align 8, !dbg !49, !tbaa !22 %add = add nsw i64 %8, %conv3, !dbg !49 store i64 %add, i64* %sum, align 8, !dbg !49, !tbaa !22 br label %if.end if.end: ; preds = %if.else, %if.then br label %for.inc, !dbg !50 for.inc: ; preds = %if.end %9 = load i32, i32* %i, align 4, !dbg !51, !tbaa !28 %inc = add nsw i32 %9, 1, !dbg !51 store i32 %inc, i32* %i, align 4, !dbg !51, !tbaa !28 br label %for.cond, !dbg !52 for.end: ; preds = %for.cond.cleanup %10 = load i64, i64* %sum, align 8, !dbg !53, !tbaa !22 %11 = bitcast i64* %sum to i8*, !dbg !54 call void @llvm.lifetime.end.p0i8(i64 8, i8* %11) #4, !dbg !54 ret i64 %10, !dbg !55 } ; Function Attrs: nounwind argmemonly declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1 ; Function Attrs: nounwind readnone declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 ; Function Attrs: nounwind define i32 @rand() #3 !dbg !59 { ret i32 1 } ; Function Attrs: nounwind argmemonly declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1 ; Function Attrs: nounwind uwtable define i32 @main() #0 !dbg !13 { entry: %retval = alloca i32, align 4 store i32 0, i32* %retval, align 4 %call = call i64 @_Z3foov(), !dbg !56 %cmp = icmp sgt i64 %call, 0, !dbg !57 %conv = zext i1 %cmp to i32, !dbg !56 ret i32 %conv, !dbg !58 } attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "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" "use-sample-profile" } attributes #1 = { nounwind argmemonly } attributes #2 = { nounwind readnone } attributes #3 = { nounwind alwaysinline "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "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" } attributes #4 = { nounwind } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!16, !17} !llvm.ident = !{!18} !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) !1 = !DIFile(filename: "remarks.cc", directory: ".") !2 = !{} !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) !5 = !DISubroutineType(types: !6) !6 = !{!7} !7 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding: DW_ATE_signed) !8 = !{!9, !10} !9 = !DILocalVariable(name: "sum", scope: !4, file: !1, line: 4, type: !7) !10 = !DILocalVariable(name: "i", scope: !11, file: !1, line: 5, type: !12) !11 = distinct !DILexicalBlock(scope: !4, file: !1, line: 5, column: 3) !12 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) !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) !14 = !DISubroutineType(types: !15) !15 = !{!12} !16 = !{i32 2, !"Dwarf Version", i32 4} !17 = !{i32 2, !"Debug Info Version", i32 3} !18 = !{!"clang version 3.8.0 (trunk 251041) (llvm/trunk 251053)"} !19 = !DILocation(line: 4, column: 3, scope: !4) !20 = !DIExpression() !21 = !DILocation(line: 4, column: 17, scope: !4) !22 = !{!23, !23, i64 0} !23 = !{!"long long", !24, i64 0} !24 = !{!"omnipotent char", !25, i64 0} !25 = !{!"Simple C/C++ TBAA"} !26 = !DILocation(line: 5, column: 8, scope: !11) !27 = !DILocation(line: 5, column: 12, scope: !11) !28 = !{!29, !29, i64 0} !29 = !{!"int", !24, i64 0} !30 = !DILocation(line: 5, column: 19, scope: !31) !31 = !DILexicalBlockFile(scope: !32, file: !1, discriminator: 3) !32 = !DILexicalBlockFile(scope: !33, file: !1, discriminator: 1) !33 = distinct !DILexicalBlock(scope: !11, file: !1, line: 5, column: 3) !34 = !DILocation(line: 5, column: 21, scope: !33) !35 = !DILocation(line: 5, column: 3, scope: !11) !36 = !DILocation(line: 5, column: 3, scope: !37) !37 = !DILexicalBlockFile(scope: !33, file: !1, discriminator: 2) !38 = !DILocation(line: 6, column: 9, scope: !39) !39 = distinct !DILexicalBlock(scope: !33, file: !1, line: 6, column: 9) !40 = !DILocation(line: 6, column: 11, scope: !39) !41 = !DILocation(line: 6, column: 9, scope: !33) !42 = !DILocation(line: 7, column: 14, scope: !39) !43 = !DILocation(line: 7, column: 11, scope: !39) !44 = !DILocation(line: 7, column: 7, scope: !39) !45 = !DILocation(line: 9, column: 15, scope: !39) !46 = !DILocation(line: 9, column: 14, scope: !39) !47 = !DILocation(line: 9, column: 19, scope: !39) !48 = !DILocation(line: 9, column: 17, scope: !39) !49 = !DILocation(line: 9, column: 11, scope: !39) !50 = !DILocation(line: 6, column: 13, scope: !39) !51 = !DILocation(line: 5, column: 35, scope: !33) !52 = !DILocation(line: 5, column: 3, scope: !33) !53 = !DILocation(line: 10, column: 10, scope: !4) !54 = !DILocation(line: 11, column: 1, scope: !4) !55 = !DILocation(line: 10, column: 3, scope: !4) !56 = !DILocation(line: 13, column: 21, scope: !13) !57 = !DILocation(line: 13, column: 27, scope: !13) !58 = !DILocation(line: 13, column: 14, scope: !13) !59 = distinct !DISubprogram(name: "rand", linkageName: "rand", scope: !1, file: !1, line: 90, type: !5, isLocal: false, isDefinition: true, scopeLine: 90, flags: DIFlagPrototyped, isOptimized: true, unit: !0)