| |
| ; RUN: llc -mtriple x86_64-pc-linux -O0 -filetype=obj %s -o %t |
| ; RUN: llvm-dwarfdump %t | FileCheck %s |
| |
| ; Testcase from: |
| ; struct base { |
| ; virtual ~base(); |
| ; }; |
| ; typedef base base_type; |
| ; struct foo { |
| ; base_type b; |
| ; }; |
| ; foo f; |
| |
| ; Where member b should be seen as a field at an offset and not a bitfield. |
| |
| ; CHECK: DW_TAG_member |
| ; CHECK: DW_AT_name{{.*}}"b" |
| ; CHECK-NOT: DW_AT_bit_offset |
| |
| source_filename = "test/DebugInfo/X86/decl-derived-member.ll" |
| |
| %struct.foo = type { %struct.base } |
| %struct.base = type { ptr } |
| |
| $_ZN3fooC2Ev = comdat any |
| |
| $_ZN3fooD2Ev = comdat any |
| |
| $_ZN4baseC2Ev = comdat any |
| |
| @f = global %struct.foo zeroinitializer, align 8, !dbg !0 |
| @__dso_handle = external global i8 |
| @_ZTV4base = external unnamed_addr constant [4 x ptr] |
| @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 }] |
| |
| define internal void @__cxx_global_var_init() section ".text.startup" !dbg !15 { |
| entry: |
| call void @_ZN3fooC2Ev(ptr @f) #2, !dbg !18 |
| %0 = call i32 @__cxa_atexit(ptr @_ZN3fooD2Ev, ptr @f, ptr @__dso_handle) #2, !dbg !18 |
| ret void, !dbg !18 |
| } |
| |
| ; Function Attrs: inlinehint nounwind uwtable |
| define linkonce_odr void @_ZN3fooC2Ev(ptr %this) unnamed_addr #0 comdat align 2 !dbg !19 { |
| entry: |
| %this.addr = alloca ptr, align 8 |
| store ptr %this, ptr %this.addr, align 8 |
| call void @llvm.dbg.declare(metadata ptr %this.addr, metadata !24, metadata !26), !dbg !27 |
| %this1 = load ptr, ptr %this.addr |
| call void @_ZN4baseC2Ev(ptr %this1) #2, !dbg !28 |
| ret void, !dbg !28 |
| } |
| |
| ; Function Attrs: inlinehint uwtable |
| define linkonce_odr void @_ZN3fooD2Ev(ptr %this) unnamed_addr #1 comdat align 2 !dbg !29 { |
| entry: |
| %this.addr = alloca ptr, align 8 |
| store ptr %this, ptr %this.addr, align 8 |
| call void @llvm.dbg.declare(metadata ptr %this.addr, metadata !31, metadata !26), !dbg !32 |
| %this1 = load ptr, ptr %this.addr |
| call void @_ZN4baseD1Ev(ptr %this1), !dbg !33 |
| ret void, !dbg !35 |
| } |
| |
| ; Function Attrs: nounwind |
| declare i32 @__cxa_atexit(ptr, ptr, ptr) #2 |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #3 |
| |
| ; Function Attrs: inlinehint nounwind uwtable |
| define linkonce_odr void @_ZN4baseC2Ev(ptr %this) unnamed_addr #0 comdat align 2 !dbg !36 { |
| entry: |
| %this.addr = alloca ptr, align 8 |
| store ptr %this, ptr %this.addr, align 8 |
| call void @llvm.dbg.declare(metadata ptr %this.addr, metadata !41, metadata !26), !dbg !43 |
| %this1 = load ptr, ptr %this.addr |
| store ptr getelementptr inbounds ([4 x ptr], ptr @_ZTV4base, i64 0, i64 2), ptr %this1, !dbg !44 |
| ret void, !dbg !44 |
| } |
| |
| declare void @_ZN4baseD1Ev(ptr) #4 |
| |
| define internal void @_GLOBAL__sub_I_decl_derived_member.cpp() section ".text.startup" { |
| entry: |
| call void @__cxx_global_var_init(), !dbg !45 |
| ret void |
| } |
| |
| attributes #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" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #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" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #2 = { nounwind } |
| attributes #3 = { nounwind readnone } |
| attributes #4 = { "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| |
| !llvm.dbg.cu = !{!8} |
| !llvm.module.flags = !{!12, !13} |
| !llvm.ident = !{!14} |
| |
| !0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) |
| !1 = !DIGlobalVariable(name: "f", scope: null, file: !2, line: 8, type: !3, isLocal: false, isDefinition: true) |
| !2 = !DIFile(filename: "decl-derived-member.cpp", directory: "/tmp/dbginfo") |
| !3 = !DICompositeType(tag: DW_TAG_structure_type, name: "foo", file: !2, line: 5, size: 64, align: 64, elements: !4, identifier: "_ZTS3foo") |
| !4 = !{!5} |
| !5 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !3, file: !2, line: 6, baseType: !6, size: 64, align: 64) |
| !6 = !DIDerivedType(tag: DW_TAG_typedef, name: "base_type", file: !2, line: 4, baseType: !7) |
| !7 = !DICompositeType(tag: DW_TAG_structure_type, name: "base", file: !2, line: 1, flags: DIFlagFwdDecl, identifier: "_ZTS4base") |
| !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) |
| !9 = !{} |
| !10 = !{!3, !7} |
| !11 = !{!0} |
| !12 = !{i32 2, !"Dwarf Version", i32 4} |
| !13 = !{i32 2, !"Debug Info Version", i32 3} |
| !14 = !{!"clang version 3.7.0 (trunk 227104) (llvm/trunk 227103)"} |
| !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) |
| !16 = !DISubroutineType(types: !17) |
| !17 = !{null} |
| !18 = !DILocation(line: 8, column: 5, scope: !15) |
| !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) |
| !20 = !DISubroutineType(types: !21) |
| !21 = !{null, !22} |
| !22 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !23 = !DISubprogram(name: "foo", scope: !3, type: !20, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false) |
| !24 = !DILocalVariable(name: "this", arg: 1, scope: !19, type: !25, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !25 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 64, align: 64) |
| !26 = !DIExpression() |
| !27 = !DILocation(line: 0, scope: !19) |
| !28 = !DILocation(line: 5, column: 8, scope: !19) |
| !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) |
| !30 = !DISubprogram(name: "~foo", scope: !3, type: !20, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false) |
| !31 = !DILocalVariable(name: "this", arg: 1, scope: !29, type: !25, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !32 = !DILocation(line: 0, scope: !29) |
| !33 = !DILocation(line: 5, column: 8, scope: !34) |
| !34 = distinct !DILexicalBlock(scope: !29, file: !2, line: 5, column: 8) |
| !35 = !DILocation(line: 5, column: 8, scope: !29) |
| !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) |
| !37 = !DISubroutineType(types: !38) |
| !38 = !{null, !39} |
| !39 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !40 = !DISubprogram(name: "base", scope: !7, type: !37, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false) |
| !41 = !DILocalVariable(name: "this", arg: 1, scope: !36, type: !42, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !42 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !7, size: 64, align: 64) |
| !43 = !DILocation(line: 0, scope: !36) |
| !44 = !DILocation(line: 1, column: 8, scope: !36) |
| !45 = !DILocation(line: 0, scope: !46) |
| !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) |
| !47 = !DISubroutineType(types: !9) |
| |