1; RUN: llc -march=x86-64 -mtriple=x86_64-linux < %s | FileCheck %s 2; RUN: opt -strip-debug < %s | llc -march=x86-64 -mtriple=x86_64-linux | FileCheck %s 3; http://llvm.org/PR19051. Minor code-motion difference with -g. 4; Presence of debug info shouldn't affect the codegen. Make sure that 5; we generated the same code sequence with and without debug info. 6; 7; CHECK: callq _Z3fooPcjPKc 8; CHECK: callq _Z3fooPcjPKc 9; CHECK: leaq (%rsp), %rdi 10; CHECK: movl $4, %esi 11; CHECK: testl {{%[a-z]+}}, {{%[a-z]+}} 12; CHECK: je .LBB0_4 13 14; Regenerate test with this command: 15; clang++ -emit-llvm -S -O2 -g 16; from this source: 17; 18; extern void foo(char *dst,unsigned siz,const char *src); 19; extern const char * i2str(int); 20; 21; struct AAA3 { 22; AAA3(const char *value) { foo(text,sizeof(text),value);} 23; void operator=(const char *value) { foo(text,sizeof(text),value);} 24; operator const char*() const { return text;} 25; char text[4]; 26; }; 27; 28; void bar (int param1,int param2) { 29; const char * temp(0); 30; 31; if (param2) { 32; temp = i2str(param2); 33; } 34; AAA3 var1(""); 35; AAA3 var2(""); 36; 37; if (param1) 38; var2 = "+"; 39; else 40; var2 = "-"; 41; var1 = ""; 42; } 43 44%struct.AAA3 = type { [4 x i8] } 45 46@.str = private unnamed_addr constant [1 x i8] zeroinitializer, align 1 47@.str.1 = private unnamed_addr constant [2 x i8] c"+\00", align 1 48@.str.2 = private unnamed_addr constant [2 x i8] c"-\00", align 1 49 50; Function Attrs: uwtable 51define void @_Z3barii(i32 %param1, i32 %param2) #0 !dbg !24 { 52entry: 53 %var1 = alloca %struct.AAA3, align 1 54 %var2 = alloca %struct.AAA3, align 1 55 tail call void @llvm.dbg.value(metadata i32 %param1, i64 0, metadata !29, metadata !46), !dbg !47 56 tail call void @llvm.dbg.value(metadata i32 %param2, i64 0, metadata !30, metadata !46), !dbg !48 57 tail call void @llvm.dbg.value(metadata i8* null, i64 0, metadata !31, metadata !46), !dbg !49 58 %tobool = icmp eq i32 %param2, 0, !dbg !50 59 br i1 %tobool, label %if.end, label %if.then, !dbg !52 60 61if.then: ; preds = %entry 62 %call = tail call i8* @_Z5i2stri(i32 %param2), !dbg !53 63 tail call void @llvm.dbg.value(metadata i8* %call, i64 0, metadata !31, metadata !46), !dbg !49 64 br label %if.end, !dbg !55 65 66if.end: ; preds = %entry, %if.then 67 %0 = getelementptr inbounds %struct.AAA3, %struct.AAA3* %var1, i64 0, i32 0, i64 0, !dbg !56 68 call void @llvm.lifetime.start(i64 4, i8* %0) #4, !dbg !56 69 tail call void @llvm.dbg.value(metadata %struct.AAA3* %var1, i64 0, metadata !32, metadata !57), !dbg !58 70 tail call void @llvm.dbg.value(metadata %struct.AAA3* %var1, i64 0, metadata !36, metadata !46), !dbg !59 71 tail call void @llvm.dbg.value(metadata i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0), i64 0, metadata !38, metadata !46), !dbg !62 72 call void @_Z3fooPcjPKc(i8* %0, i32 4, i8* nonnull getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0)), !dbg !63 73 %1 = getelementptr inbounds %struct.AAA3, %struct.AAA3* %var2, i64 0, i32 0, i64 0, !dbg !65 74 call void @llvm.lifetime.start(i64 4, i8* %1) #4, !dbg !65 75 call void @llvm.dbg.value(metadata %struct.AAA3* %var2, i64 0, metadata !33, metadata !57), !dbg !66 76 call void @llvm.dbg.value(metadata %struct.AAA3* %var2, i64 0, metadata !36, metadata !46), !dbg !67 77 call void @llvm.dbg.value(metadata i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0), i64 0, metadata !38, metadata !46), !dbg !69 78 call void @_Z3fooPcjPKc(i8* %1, i32 4, i8* nonnull getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0)), !dbg !70 79 %tobool1 = icmp eq i32 %param1, 0, !dbg !71 80 call void @llvm.dbg.value(metadata %struct.AAA3* %var2, i64 0, metadata !33, metadata !57), !dbg !66 81 call void @llvm.dbg.value(metadata %struct.AAA3* %var2, i64 0, metadata !41, metadata !46), !dbg !73 82 br i1 %tobool1, label %if.else, label %if.then2, !dbg !75 83 84if.then2: ; preds = %if.end 85 call void @llvm.dbg.value(metadata i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0), i64 0, metadata !42, metadata !46), !dbg !76 86 call void @_Z3fooPcjPKc(i8* %1, i32 4, i8* nonnull getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0)), !dbg !78 87 br label %if.end3, !dbg !79 88 89if.else: ; preds = %if.end 90 call void @llvm.dbg.value(metadata i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0), i64 0, metadata !42, metadata !46), !dbg !80 91 call void @_Z3fooPcjPKc(i8* %1, i32 4, i8* nonnull getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0)), !dbg !81 92 br label %if.end3 93 94if.end3: ; preds = %if.else, %if.then2 95 call void @llvm.dbg.value(metadata %struct.AAA3* %var1, i64 0, metadata !32, metadata !57), !dbg !58 96 call void @llvm.dbg.value(metadata %struct.AAA3* %var1, i64 0, metadata !41, metadata !46), !dbg !82 97 call void @llvm.dbg.value(metadata i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0), i64 0, metadata !42, metadata !46), !dbg !84 98 call void @_Z3fooPcjPKc(i8* %0, i32 4, i8* nonnull getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0)), !dbg !85 99 call void @llvm.lifetime.end(i64 4, i8* %1) #4, !dbg !86 100 call void @llvm.lifetime.end(i64 4, i8* %0) #4, !dbg !87 101 ret void, !dbg !86 102} 103 104; Function Attrs: argmemonly nounwind 105declare void @llvm.lifetime.start(i64, i8* nocapture) #1 106 107declare i8* @_Z5i2stri(i32) #2 108 109; Function Attrs: argmemonly nounwind 110declare void @llvm.lifetime.end(i64, i8* nocapture) #1 111 112declare void @_Z3fooPcjPKc(i8*, i32, i8*) #2 113 114; Function Attrs: nounwind readnone 115declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #3 116 117attributes #0 = { 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" } 118attributes #1 = { argmemonly nounwind } 119attributes #2 = { "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" } 120attributes #3 = { nounwind readnone } 121attributes #4 = { nounwind } 122 123!llvm.dbg.cu = !{!0} 124!llvm.module.flags = !{!43, !44} 125!llvm.ident = !{!45} 126 127!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 255993) (llvm/trunk 256074)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3) 128!1 = !DIFile(filename: "test.cpp", directory: "/mnt/extra") 129!2 = !{} 130!3 = !{!4} 131!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "AAA3", file: !1, line: 4, size: 32, align: 8, elements: !5, identifier: "_ZTS4AAA3") 132!5 = !{!6, !11, !17, !18} 133!6 = !DIDerivedType(tag: DW_TAG_member, name: "text", scope: !4, file: !1, line: 8, baseType: !7, size: 32, align: 8) 134!7 = !DICompositeType(tag: DW_TAG_array_type, baseType: !8, size: 32, align: 8, elements: !9) 135!8 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char) 136!9 = !{!10} 137!10 = !DISubrange(count: 4) 138!11 = !DISubprogram(name: "AAA3", scope: !4, file: !1, line: 5, type: !12, isLocal: false, isDefinition: false, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true) 139!12 = !DISubroutineType(types: !13) 140!13 = !{null, !14, !15} 141!14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) 142!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64, align: 64) 143!16 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8) 144!17 = !DISubprogram(name: "operator=", linkageName: "_ZN4AAA3aSEPKc", scope: !4, file: !1, line: 6, type: !12, isLocal: false, isDefinition: false, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true) 145!18 = !DISubprogram(name: "operator const char *", linkageName: "_ZNK4AAA3cvPKcEv", scope: !4, file: !1, line: 7, type: !19, isLocal: false, isDefinition: false, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: true) 146!19 = !DISubroutineType(types: !20) 147!20 = !{!15, !21} 148!21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !22, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) 149!22 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !4) 150!24 = distinct !DISubprogram(name: "bar", linkageName: "_Z3barii", scope: !1, file: !1, line: 11, type: !25, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !28) 151!25 = !DISubroutineType(types: !26) 152!26 = !{null, !27, !27} 153!27 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 154!28 = !{!29, !30, !31, !32, !33} 155!29 = !DILocalVariable(name: "param1", arg: 1, scope: !24, file: !1, line: 11, type: !27) 156!30 = !DILocalVariable(name: "param2", arg: 2, scope: !24, file: !1, line: 11, type: !27) 157!31 = !DILocalVariable(name: "temp", scope: !24, file: !1, line: 12, type: !15) 158!32 = !DILocalVariable(name: "var1", scope: !24, file: !1, line: 17, type: !4) 159!33 = !DILocalVariable(name: "var2", scope: !24, file: !1, line: 18, type: !4) 160!34 = distinct !DISubprogram(name: "AAA3", linkageName: "_ZN4AAA3C2EPKc", scope: !4, file: !1, line: 5, type: !12, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !11, variables: !35) 161!35 = !{!36, !38} 162!36 = !DILocalVariable(name: "this", arg: 1, scope: !34, type: !37, flags: DIFlagArtificial | DIFlagObjectPointer) 163!37 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 64, align: 64) 164!38 = !DILocalVariable(name: "value", arg: 2, scope: !34, file: !1, line: 5, type: !15) 165!39 = distinct !DISubprogram(name: "operator=", linkageName: "_ZN4AAA3aSEPKc", scope: !4, file: !1, line: 6, type: !12, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !17, variables: !40) 166!40 = !{!41, !42} 167!41 = !DILocalVariable(name: "this", arg: 1, scope: !39, type: !37, flags: DIFlagArtificial | DIFlagObjectPointer) 168!42 = !DILocalVariable(name: "value", arg: 2, scope: !39, file: !1, line: 6, type: !15) 169!43 = !{i32 2, !"Dwarf Version", i32 4} 170!44 = !{i32 2, !"Debug Info Version", i32 3} 171!45 = !{!"clang version 3.8.0 (trunk 255993) (llvm/trunk 256074)"} 172!46 = !DIExpression() 173!47 = !DILocation(line: 11, column: 15, scope: !24) 174!48 = !DILocation(line: 11, column: 26, scope: !24) 175!49 = !DILocation(line: 12, column: 16, scope: !24) 176!50 = !DILocation(line: 14, column: 7, scope: !51) 177!51 = distinct !DILexicalBlock(scope: !24, file: !1, line: 14, column: 7) 178!52 = !DILocation(line: 14, column: 7, scope: !24) 179!53 = !DILocation(line: 15, column: 12, scope: !54) 180!54 = distinct !DILexicalBlock(scope: !51, file: !1, line: 14, column: 15) 181!55 = !DILocation(line: 16, column: 3, scope: !54) 182!56 = !DILocation(line: 17, column: 3, scope: !24) 183!57 = !DIExpression(DW_OP_deref) 184!58 = !DILocation(line: 17, column: 8, scope: !24) 185!59 = !DILocation(line: 0, scope: !34, inlinedAt: !60) 186!60 = distinct !DILocation(line: 17, column: 8, scope: !61) 187!61 = !DILexicalBlockFile(scope: !24, file: !1, discriminator: 1) 188!62 = !DILocation(line: 5, column: 19, scope: !34, inlinedAt: !60) 189!63 = !DILocation(line: 5, column: 28, scope: !64, inlinedAt: !60) 190!64 = distinct !DILexicalBlock(scope: !34, file: !1, line: 5, column: 26) 191!65 = !DILocation(line: 18, column: 3, scope: !24) 192!66 = !DILocation(line: 18, column: 8, scope: !24) 193!67 = !DILocation(line: 0, scope: !34, inlinedAt: !68) 194!68 = distinct !DILocation(line: 18, column: 8, scope: !61) 195!69 = !DILocation(line: 5, column: 19, scope: !34, inlinedAt: !68) 196!70 = !DILocation(line: 5, column: 28, scope: !64, inlinedAt: !68) 197!71 = !DILocation(line: 20, column: 7, scope: !72) 198!72 = distinct !DILexicalBlock(scope: !24, file: !1, line: 20, column: 7) 199!73 = !DILocation(line: 0, scope: !39, inlinedAt: !74) 200!74 = distinct !DILocation(line: 23, column: 10, scope: !72) 201!75 = !DILocation(line: 20, column: 7, scope: !24) 202!76 = !DILocation(line: 6, column: 29, scope: !39, inlinedAt: !77) 203!77 = distinct !DILocation(line: 21, column: 10, scope: !72) 204!78 = !DILocation(line: 6, column: 38, scope: !39, inlinedAt: !77) 205!79 = !DILocation(line: 21, column: 5, scope: !72) 206!80 = !DILocation(line: 6, column: 29, scope: !39, inlinedAt: !74) 207!81 = !DILocation(line: 6, column: 38, scope: !39, inlinedAt: !74) 208!82 = !DILocation(line: 0, scope: !39, inlinedAt: !83) 209!83 = distinct !DILocation(line: 24, column: 8, scope: !24) 210!84 = !DILocation(line: 6, column: 29, scope: !39, inlinedAt: !83) 211!85 = !DILocation(line: 6, column: 38, scope: !39, inlinedAt: !83) 212!86 = !DILocation(line: 25, column: 1, scope: !24) 213!87 = !DILocation(line: 25, column: 1, scope: !61) 214