| ; 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 <stdlib.h> |
| ; 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: - String: '''' |
| ;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: '''' |
| ;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: - String: '''' |
| ;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: '''' |
| ;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) |