1 ; REQUIRES: object-emission
3 ; RUN: llc -mtriple x86_64-pc-linux -O0 -filetype=obj %s -o %t
4 ; RUN: llvm-dwarfdump %t | FileCheck %s
10 ; typedef base base_type;
16 ; Where member b should be seen as a field at an offset and not a bitfield.
18 ; CHECK: DW_TAG_member
19 ; CHECK: DW_AT_name{{.*}}"b"
20 ; CHECK-NOT: DW_AT_bit_offset
22 source_filename = "test/DebugInfo/X86/decl-derived-member.ll"
24 %struct.foo = type { %struct.base }
25 %struct.base = type { i32 (...)** }
27 $_ZN3fooC2Ev = comdat any
29 $_ZN3fooD2Ev = comdat any
31 $_ZN4baseC2Ev = comdat any
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 }]
38 define internal void @__cxx_global_var_init() section ".text.startup" !dbg !15 {
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
45 ; Function Attrs: inlinehint nounwind uwtable
46 define linkonce_odr void @_ZN3fooC2Ev(%struct.foo* %this) unnamed_addr #0 comdat align 2 !dbg !19 {
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
57 ; Function Attrs: inlinehint uwtable
58 define linkonce_odr void @_ZN3fooD2Ev(%struct.foo* %this) unnamed_addr #1 comdat align 2 !dbg !29 {
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
69 ; Function Attrs: nounwind
70 declare i32 @__cxa_atexit(void (i8*)*, i8*, i8*) #2
72 ; Function Attrs: nounwind readnone
73 declare void @llvm.dbg.declare(metadata, metadata, metadata) #3
75 ; Function Attrs: inlinehint nounwind uwtable
76 define linkonce_odr void @_ZN4baseC2Ev(%struct.base* %this) unnamed_addr #0 comdat align 2 !dbg !36 {
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
87 declare void @_ZN4baseD1Ev(%struct.base*) #4
89 define internal void @_GLOBAL__sub_I_decl_derived_member.cpp() section ".text.startup" {
91 call void @__cxx_global_var_init(), !dbg !45
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" }
102 !llvm.module.flags = !{!12, !13}
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")
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)
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)
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)
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)
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)