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1; RUN: llc -filetype=asm -o - %s | FileCheck %s --check-prefix=ASM2; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump -v --debug-info - | FileCheck %s3;4; Generated at -O2 from:5; struct B;6; class A {7; int a1 = 23;8; int a2 = 42;9; };10; struct B {11; A a;12; int b = 48;13; };14; 15; B *getB() { return new B(); }16;17; The inlined A::this pointer has the same location as B::this, but it may not be18; modified by the debugger.19;20; ASM: [DW_OP_stack_value]21; CHECK: DW_AT_location {{.*}} (DW_OP_breg0 RAX+0, DW_OP_stack_value)22 23source_filename = "ab.cpp"24target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"25target triple = "x86_64-apple-macosx10.12.0"26 27%struct.B = type { %class.A, i32 }28%class.A = type { i32, i32 }29 30; Function Attrs: ssp uwtable31define noalias nonnull ptr @_Z4getBv() local_unnamed_addr #0 !dbg !7 {32entry:33 %call = tail call ptr @_Znwm(i64 12) #3, !dbg !2034 tail call void @llvm.dbg.value(metadata ptr %call, metadata !21, metadata !28), !dbg !2935 tail call void @llvm.dbg.value(metadata ptr %call, metadata !31, metadata !28), !dbg !3436 tail call void @llvm.dbg.value(metadata ptr %call, metadata !36, metadata !44), !dbg !4537 tail call void @llvm.dbg.value(metadata ptr %call, metadata !47, metadata !44), !dbg !5038 store i32 23, ptr %call, align 4, !dbg !52, !tbaa !5339 %a2.i.i.i.i = getelementptr inbounds i8, ptr %call, i64 4, !dbg !5840 store i32 42, ptr %a2.i.i.i.i, align 4, !dbg !58, !tbaa !5941 %b.i.i = getelementptr inbounds i8, ptr %call, i64 8, !dbg !6042 store i32 48, ptr %b.i.i, align 4, !dbg !60, !tbaa !6143 ret ptr %call, !dbg !6344}45 46declare noalias nonnull ptr @_Znwm(i64) local_unnamed_addr #147declare void @llvm.dbg.value(metadata, metadata, metadata) #248 49attributes #0 = { ssp uwtable }50attributes #1 = { nobuiltin }51attributes #2 = { nounwind readnone }52attributes #3 = { builtin }53 54!llvm.dbg.cu = !{!0}55!llvm.module.flags = !{!3, !4, !5}56 57!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 (trunk 301093) (llvm/trunk 301093)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)58!1 = !DIFile(filename: "ab.cpp", directory: "/")59!2 = !{}60!3 = !{i32 2, !"Dwarf Version", i32 4}61!4 = !{i32 2, !"Debug Info Version", i32 3}62!5 = !{i32 1, !"PIC Level", i32 2}63!7 = distinct !DISubprogram(name: "getB", linkageName: "_Z4getBv", scope: !1, file: !1, line: 11, type: !8, isLocal: false, isDefinition: true, scopeLine: 11, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2)64!8 = !DISubroutineType(types: !9)65!9 = !{!10}66!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64)67!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "B", file: !1, line: 6, size: 96, elements: !12, identifier: "_ZTS1B")68!12 = !{!13, !19}69!13 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !11, file: !1, line: 7, baseType: !14, size: 64)70!14 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "A", file: !1, line: 2, size: 64, elements: !15, identifier: "_ZTS1A")71!15 = !{!16, !18}72!16 = !DIDerivedType(tag: DW_TAG_member, name: "a1", scope: !14, file: !1, line: 3, baseType: !17, size: 32)73!17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)74!18 = !DIDerivedType(tag: DW_TAG_member, name: "a2", scope: !14, file: !1, line: 4, baseType: !17, size: 32, offset: 32)75!19 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !11, file: !1, line: 8, baseType: !17, size: 32, offset: 64)76!20 = !DILocation(line: 11, column: 20, scope: !7)77!21 = !DILocalVariable(name: "this", arg: 1, scope: !22, type: !10, flags: DIFlagArtificial | DIFlagObjectPointer)78!22 = distinct !DISubprogram(name: "B", linkageName: "_ZN1BC1Ev", scope: !11, file: !1, line: 6, type: !23, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !26, retainedNodes: !27)79!23 = !DISubroutineType(types: !24)80!24 = !{null, !25}81!25 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)82!26 = !DISubprogram(name: "B", scope: !11, type: !23, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: true)83!27 = !{!21}84!28 = !DIExpression()85!29 = !DILocation(line: 0, scope: !22, inlinedAt: !30)86!30 = distinct !DILocation(line: 11, column: 24, scope: !7)87!31 = !DILocalVariable(name: "this", arg: 1, scope: !32, type: !10, flags: DIFlagArtificial | DIFlagObjectPointer)88!32 = distinct !DISubprogram(name: "B", linkageName: "_ZN1BC2Ev", scope: !11, file: !1, line: 6, type: !23, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !26, retainedNodes: !33)89!33 = !{!31}90!34 = !DILocation(line: 0, scope: !32, inlinedAt: !35)91!35 = distinct !DILocation(line: 6, column: 8, scope: !22, inlinedAt: !30)92!36 = !DILocalVariable(name: "this", arg: 1, scope: !37, type: !43, flags: DIFlagArtificial | DIFlagObjectPointer)93!37 = distinct !DISubprogram(name: "A", linkageName: "_ZN1AC1Ev", scope: !14, file: !1, line: 2, type: !38, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !41, retainedNodes: !42)94!38 = !DISubroutineType(types: !39)95!39 = !{null, !40}96!40 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)97!41 = !DISubprogram(name: "A", scope: !14, type: !38, isLocal: false, isDefinition: false, flags: DIFlagPublic | DIFlagArtificial | DIFlagPrototyped, isOptimized: true)98!42 = !{!36}99!43 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 64)100!44 = !DIExpression(DW_OP_stack_value)101!45 = !DILocation(line: 0, scope: !37, inlinedAt: !46)102!46 = distinct !DILocation(line: 6, column: 8, scope: !32, inlinedAt: !35)103!47 = !DILocalVariable(name: "this", arg: 1, scope: !48, type: !43, flags: DIFlagArtificial | DIFlagObjectPointer)104!48 = distinct !DISubprogram(name: "A", linkageName: "_ZN1AC2Ev", scope: !14, file: !1, line: 2, type: !38, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !41, retainedNodes: !49)105!49 = !{!47}106!50 = !DILocation(line: 0, scope: !48, inlinedAt: !51)107!51 = distinct !DILocation(line: 2, column: 7, scope: !37, inlinedAt: !46)108!52 = !DILocation(line: 3, column: 7, scope: !48, inlinedAt: !51)109!53 = !{!54, !55, i64 0}110!54 = !{!"_ZTS1A", !55, i64 0, !55, i64 4}111!55 = !{!"int", !56, i64 0}112!56 = !{!"omnipotent char", !57, i64 0}113!57 = !{!"Simple C++ TBAA"}114!58 = !DILocation(line: 4, column: 7, scope: !48, inlinedAt: !51)115!59 = !{!54, !55, i64 4}116!60 = !DILocation(line: 8, column: 7, scope: !32, inlinedAt: !35)117!61 = !{!62, !55, i64 8}118!62 = !{!"_ZTS1B", !54, i64 0, !55, i64 8}119!63 = !DILocation(line: 11, column: 13, scope: !7)120