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1 2; RUN: llc -mtriple x86_64-pc-linux -O0 -filetype=obj %s -o %t3; RUN: llvm-dwarfdump %t | FileCheck %s4 5; Testcase from:6; struct base {7; virtual ~base();8; };9; typedef base base_type;10; struct foo {11; base_type b;12; };13; foo f;14 15; Where member b should be seen as a field at an offset and not a bitfield.16 17; CHECK: DW_TAG_member18; CHECK: DW_AT_name{{.*}}"b"19; CHECK-NOT: DW_AT_bit_offset20 21source_filename = "test/DebugInfo/X86/decl-derived-member.ll"22 23%struct.foo = type { %struct.base }24%struct.base = type { ptr }25 26$_ZN3fooC2Ev = comdat any27 28$_ZN3fooD2Ev = comdat any29 30$_ZN4baseC2Ev = comdat any31 32@f = global %struct.foo zeroinitializer, align 8, !dbg !033@__dso_handle = external global i834@_ZTV4base = external unnamed_addr constant [4 x ptr]35@llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @_GLOBAL__sub_I_decl_derived_member.cpp, ptr null }]36 37define internal void @__cxx_global_var_init() section ".text.startup" !dbg !15 {38entry:39 call void @_ZN3fooC2Ev(ptr @f) #2, !dbg !1840 %0 = call i32 @__cxa_atexit(ptr @_ZN3fooD2Ev, ptr @f, ptr @__dso_handle) #2, !dbg !1841 ret void, !dbg !1842}43 44; Function Attrs: inlinehint nounwind uwtable45define linkonce_odr void @_ZN3fooC2Ev(ptr %this) unnamed_addr #0 comdat align 2 !dbg !19 {46entry:47 %this.addr = alloca ptr, align 848 store ptr %this, ptr %this.addr, align 849 call void @llvm.dbg.declare(metadata ptr %this.addr, metadata !24, metadata !26), !dbg !2750 %this1 = load ptr, ptr %this.addr51 call void @_ZN4baseC2Ev(ptr %this1) #2, !dbg !2852 ret void, !dbg !2853}54 55; Function Attrs: inlinehint uwtable56define linkonce_odr void @_ZN3fooD2Ev(ptr %this) unnamed_addr #1 comdat align 2 !dbg !29 {57entry:58 %this.addr = alloca ptr, align 859 store ptr %this, ptr %this.addr, align 860 call void @llvm.dbg.declare(metadata ptr %this.addr, metadata !31, metadata !26), !dbg !3261 %this1 = load ptr, ptr %this.addr62 call void @_ZN4baseD1Ev(ptr %this1), !dbg !3363 ret void, !dbg !3564}65 66; Function Attrs: nounwind67declare i32 @__cxa_atexit(ptr, ptr, ptr) #268 69; Function Attrs: nounwind readnone70declare void @llvm.dbg.declare(metadata, metadata, metadata) #371 72; Function Attrs: inlinehint nounwind uwtable73define linkonce_odr void @_ZN4baseC2Ev(ptr %this) unnamed_addr #0 comdat align 2 !dbg !36 {74entry:75 %this.addr = alloca ptr, align 876 store ptr %this, ptr %this.addr, align 877 call void @llvm.dbg.declare(metadata ptr %this.addr, metadata !41, metadata !26), !dbg !4378 %this1 = load ptr, ptr %this.addr79 store ptr getelementptr inbounds ([4 x ptr], ptr @_ZTV4base, i64 0, i64 2), ptr %this1, !dbg !4480 ret void, !dbg !4481}82 83declare void @_ZN4baseD1Ev(ptr) #484 85define internal void @_GLOBAL__sub_I_decl_derived_member.cpp() section ".text.startup" {86entry:87 call void @__cxx_global_var_init(), !dbg !4588 ret void89}90 91attributes #0 = { inlinehint nounwind uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "use-soft-float"="false" }92attributes #1 = { inlinehint uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "use-soft-float"="false" }93attributes #2 = { nounwind }94attributes #3 = { nounwind readnone }95attributes #4 = { "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "use-soft-float"="false" }96 97!llvm.dbg.cu = !{!8}98!llvm.module.flags = !{!12, !13}99!llvm.ident = !{!14}100 101!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())102!1 = !DIGlobalVariable(name: "f", scope: null, file: !2, line: 8, type: !3, isLocal: false, isDefinition: true)103!2 = !DIFile(filename: "decl-derived-member.cpp", directory: "/tmp/dbginfo")104!3 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", file: !2, line: 5, size: 64, align: 64, elements: !4, identifier: "_ZTS3foo")105!4 = !{!5}106!5 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !3, file: !2, line: 6, baseType: !6, size: 64, align: 64)107!6 = !DIDerivedType(tag: DW_TAG_typedef, name: "base_type", file: !2, line: 4, baseType: !7)108!7 = !DICompositeType(tag: DW_TAG_structure_type, name: "base", file: !2, line: 1, flags: DIFlagFwdDecl, identifier: "_ZTS4base")109!8 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.7.0 (trunk 227104) (llvm/trunk 227103)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !9, retainedTypes: !10, globals: !11, imports: !9)110!9 = !{}111!10 = !{!3, !7}112!11 = !{!0}113!12 = !{i32 2, !"Dwarf Version", i32 4}114!13 = !{i32 2, !"Debug Info Version", i32 3}115!14 = !{!"clang version 3.7.0 (trunk 227104) (llvm/trunk 227103)"}116!15 = distinct !DISubprogram(name: "__cxx_global_var_init", scope: !2, file: !2, line: 8, type: !16, isLocal: true, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !8, retainedNodes: !9)117!16 = !DISubroutineType(types: !17)118!17 = !{null}119!18 = !DILocation(line: 8, column: 5, scope: !15)120!19 = distinct !DISubprogram(name: "foo", linkageName: "_ZN3fooC2Ev", scope: !3, file: !2, line: 5, type: !20, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !8, declaration: !23, retainedNodes: !9)121!20 = !DISubroutineType(types: !21)122!21 = !{null, !22}123!22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)124!23 = !DISubprogram(name: "foo", scope: !3, type: !20, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)125!24 = !DILocalVariable(name: "this", arg: 1, scope: !19, type: !25, flags: DIFlagArtificial | DIFlagObjectPointer)126!25 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 64, align: 64)127!26 = !DIExpression()128!27 = !DILocation(line: 0, scope: !19)129!28 = !DILocation(line: 5, column: 8, scope: !19)130!29 = distinct !DISubprogram(name: "~foo", linkageName: "_ZN3fooD2Ev", scope: !3, file: !2, line: 5, type: !20, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !8, declaration: !30, retainedNodes: !9)131!30 = !DISubprogram(name: "~foo", scope: !3, type: !20, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)132!31 = !DILocalVariable(name: "this", arg: 1, scope: !29, type: !25, flags: DIFlagArtificial | DIFlagObjectPointer)133!32 = !DILocation(line: 0, scope: !29)134!33 = !DILocation(line: 5, column: 8, scope: !34)135!34 = distinct !DILexicalBlock(scope: !29, file: !2, line: 5, column: 8)136!35 = !DILocation(line: 5, column: 8, scope: !29)137!36 = distinct !DISubprogram(name: "base", linkageName: "_ZN4baseC2Ev", scope: !7, file: !2, line: 1, type: !37, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !8, declaration: !40, retainedNodes: !9)138!37 = !DISubroutineType(types: !38)139!38 = !{null, !39}140!39 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)141!40 = !DISubprogram(name: "base", scope: !7, type: !37, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)142!41 = !DILocalVariable(name: "this", arg: 1, scope: !36, type: !42, flags: DIFlagArtificial | DIFlagObjectPointer)143!42 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64, align: 64)144!43 = !DILocation(line: 0, scope: !36)145!44 = !DILocation(line: 1, column: 8, scope: !36)146!45 = !DILocation(line: 0, scope: !46)147!46 = distinct !DISubprogram(linkageName: "_GLOBAL__sub_I_decl_derived_member.cpp", scope: !2, file: !2, type: !47, isLocal: true, isDefinition: true, flags: DIFlagArtificial, isOptimized: false, unit: !8, retainedNodes: !9)148!47 = !DISubroutineType(types: !9)149 150