1 ; REQUIRES: object-emission 2 3 ; RUN: llc -mtriple x86_64-pc-linux -O0 -filetype=obj %s -o %t 4 ; RUN: llvm-dwarfdump %t | FileCheck %s 5 6 ; Testcase from: 7 ; struct base { 8 ; virtual ~base(); 9 ; }; 10 ; typedef base base_type; 11 ; struct foo { 12 ; base_type b; 13 ; }; 14 ; foo f; 15 16 ; Where member b should be seen as a field at an offset and not a bitfield. 17 18 ; CHECK: DW_TAG_member 19 ; CHECK: DW_AT_name{{.*}}"b" 20 ; CHECK-NOT: DW_AT_bit_offset 21 22 source_filename = "test/DebugInfo/X86/decl-derived-member.ll" 23 24 %struct.foo = type { %struct.base } 25 %struct.base = type { i32 (...)** } 26 27 $_ZN3fooC2Ev = comdat any 28 29 $_ZN3fooD2Ev = comdat any 30 31 $_ZN4baseC2Ev = comdat any 32 33 @f = global %struct.foo zeroinitializer, align 8, !dbg !0 34 @__dso_handle = external global i8 35 @_ZTV4base = external unnamed_addr constant [4 x i8*] 36 @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_decl_derived_member.cpp, i8* null }] 37 38 define internal void @__cxx_global_var_init() section ".text.startup" !dbg !15 { 39 entry: 40 call void @_ZN3fooC2Ev(%struct.foo* @f) #2, !dbg !18 41 %0 = call i32 @__cxa_atexit(void (i8*)* bitcast (void (%struct.foo*)* @_ZN3fooD2Ev to void (i8*)*), i8* bitcast (%struct.foo* @f to i8*), i8* @__dso_handle) #2, !dbg !18 42 ret void, !dbg !18 43 } 44 45 ; Function Attrs: inlinehint nounwind uwtable 46 define linkonce_odr void @_ZN3fooC2Ev(%struct.foo* %this) unnamed_addr #0 comdat align 2 !dbg !19 { 47 entry: 48 %this.addr = alloca %struct.foo*, align 8 49 store %struct.foo* %this, %struct.foo** %this.addr, align 8 50 call void @llvm.dbg.declare(metadata %struct.foo** %this.addr, metadata !24, metadata !26), !dbg !27 51 %this1 = load %struct.foo*, %struct.foo** %this.addr 52 %b = getelementptr inbounds %struct.foo, %struct.foo* %this1, i32 0, i32 0, !dbg !28 53 call void @_ZN4baseC2Ev(%struct.base* %b) #2, !dbg !28 54 ret void, !dbg !28 55 } 56 57 ; Function Attrs: inlinehint uwtable 58 define linkonce_odr void @_ZN3fooD2Ev(%struct.foo* %this) unnamed_addr #1 comdat align 2 !dbg !29 { 59 entry: 60 %this.addr = alloca %struct.foo*, align 8 61 store %struct.foo* %this, %struct.foo** %this.addr, align 8 62 call void @llvm.dbg.declare(metadata %struct.foo** %this.addr, metadata !31, metadata !26), !dbg !32 63 %this1 = load %struct.foo*, %struct.foo** %this.addr 64 %b = getelementptr inbounds %struct.foo, %struct.foo* %this1, i32 0, i32 0, !dbg !33 65 call void @_ZN4baseD1Ev(%struct.base* %b), !dbg !33 66 ret void, !dbg !35 67 } 68 69 ; Function Attrs: nounwind 70 declare i32 @__cxa_atexit(void (i8*)*, i8*, i8*) #2 71 72 ; Function Attrs: nounwind readnone 73 declare void @llvm.dbg.declare(metadata, metadata, metadata) #3 74 75 ; Function Attrs: inlinehint nounwind uwtable 76 define linkonce_odr void @_ZN4baseC2Ev(%struct.base* %this) unnamed_addr #0 comdat align 2 !dbg !36 { 77 entry: 78 %this.addr = alloca %struct.base*, align 8 79 store %struct.base* %this, %struct.base** %this.addr, align 8 80 call void @llvm.dbg.declare(metadata %struct.base** %this.addr, metadata !41, metadata !26), !dbg !43 81 %this1 = load %struct.base*, %struct.base** %this.addr 82 %0 = bitcast %struct.base* %this1 to i32 (...)***, !dbg !44 83 store i32 (...)** bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV4base, i64 0, i64 2) to i32 (...)**), i32 (...)*** %0, !dbg !44 84 ret void, !dbg !44 85 } 86 87 declare void @_ZN4baseD1Ev(%struct.base*) #4 88 89 define internal void @_GLOBAL__sub_I_decl_derived_member.cpp() section ".text.startup" { 90 entry: 91 call void @__cxx_global_var_init(), !dbg !45 92 ret void 93 } 94 95 attributes #0 = { inlinehint nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 96 attributes #1 = { inlinehint uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 97 attributes #2 = { nounwind } 98 attributes #3 = { nounwind readnone } 99 attributes #4 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 100 101 !llvm.dbg.cu = !{!8} 102 !llvm.module.flags = !{!12, !13} 103 !llvm.ident = !{!14} 104 105 !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 106 !1 = !DIGlobalVariable(name: "f", scope: null, file: !2, line: 8, type: !3, isLocal: false, isDefinition: true) 107 !2 = !DIFile(filename: "decl-derived-member.cpp", directory: "/tmp/dbginfo") 108 !3 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", file: !2, line: 5, size: 64, align: 64, elements: !4, identifier: "_ZTS3foo") 109 !4 = !{!5} 110 !5 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !3, file: !2, line: 6, baseType: !6, size: 64, align: 64) 111 !6 = !DIDerivedType(tag: DW_TAG_typedef, name: "base_type", file: !2, line: 4, baseType: !7) 112 !7 = !DICompositeType(tag: DW_TAG_structure_type, name: "base", file: !2, line: 1, flags: DIFlagFwdDecl, identifier: "_ZTS4base") 113 !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) 114 !9 = !{} 115 !10 = !{!3, !7} 116 !11 = !{!0} 117 !12 = !{i32 2, !"Dwarf Version", i32 4} 118 !13 = !{i32 2, !"Debug Info Version", i32 3} 119 !14 = !{!"clang version 3.7.0 (trunk 227104) (llvm/trunk 227103)"} 120 !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) 121 !16 = !DISubroutineType(types: !17) 122 !17 = !{null} 123 !18 = !DILocation(line: 8, column: 5, scope: !15) 124 !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) 125 !20 = !DISubroutineType(types: !21) 126 !21 = !{null, !22} 127 !22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) 128 !23 = !DISubprogram(name: "foo", scope: !3, type: !20, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false) 129 !24 = !DILocalVariable(name: "this", arg: 1, scope: !19, type: !25, flags: DIFlagArtificial | DIFlagObjectPointer) 130 !25 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 64, align: 64) 131 !26 = !DIExpression() 132 !27 = !DILocation(line: 0, scope: !19) 133 !28 = !DILocation(line: 5, column: 8, scope: !19) 134 !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) 135 !30 = !DISubprogram(name: "~foo", scope: !3, type: !20, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false) 136 !31 = !DILocalVariable(name: "this", arg: 1, scope: !29, type: !25, flags: DIFlagArtificial | DIFlagObjectPointer) 137 !32 = !DILocation(line: 0, scope: !29) 138 !33 = !DILocation(line: 5, column: 8, scope: !34) 139 !34 = distinct !DILexicalBlock(scope: !29, file: !2, line: 5, column: 8) 140 !35 = !DILocation(line: 5, column: 8, scope: !29) 141 !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) 142 !37 = !DISubroutineType(types: !38) 143 !38 = !{null, !39} 144 !39 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) 145 !40 = !DISubprogram(name: "base", scope: !7, type: !37, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false) 146 !41 = !DILocalVariable(name: "this", arg: 1, scope: !36, type: !42, flags: DIFlagArtificial | DIFlagObjectPointer) 147 !42 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64, align: 64) 148 !43 = !DILocation(line: 0, scope: !36) 149 !44 = !DILocation(line: 1, column: 8, scope: !36) 150 !45 = !DILocation(line: 0, scope: !46) 151 !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) 152 !47 = !DISubroutineType(types: !9) 153 154
