1; struct A { 2; A(); 3; virtual ~A(); 4; }; 5; struct B : A { 6; B(); 7; virtual ~B(); 8; }; 9; B::B() {} 10; CHECK: __ZN1BC1Ev: 11; CHECK: .loc 1 [[@LINE-2]] 0 prologue_end 12; CHECK-NOT: .loc 1 0 0 prologue_end 13 14; The location of the prologue_end marker should not be affected by the presence 15; of CFI instructions. 16 17; RUN: llc -fast-isel -O0 -filetype=asm < %s | FileCheck %s 18; RUN: llc --try-experimental-debuginfo-iterators -fast-isel -O0 -filetype=asm < %s | FileCheck %s 19 20; ModuleID = 'test1.cpp' 21target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" 22target triple = "aarch64-apple-ios" 23 24%struct.B = type { %struct.A } 25%struct.A = type { ptr } 26 27@_ZTV1B = external unnamed_addr constant [4 x ptr] 28 29; Function Attrs: nounwind 30define ptr @_ZN1BC2Ev(ptr %this) unnamed_addr #0 align 2 !dbg !28 { 31entry: 32 tail call void @llvm.dbg.value(metadata ptr %this, metadata !30, metadata !38), !dbg !39 33 %call = tail call ptr @_ZN1AC2Ev(ptr %this) #3, !dbg !40 34 store ptr getelementptr inbounds ([4 x ptr], ptr @_ZTV1B, i64 0, i64 2), ptr %this, align 8, !dbg !40, !tbaa !41 35 ret ptr %this, !dbg !40 36} 37 38declare ptr @_ZN1AC2Ev(ptr) 39 40; Function Attrs: nounwind 41define ptr @_ZN1BC1Ev(ptr %this) unnamed_addr #0 align 2 !dbg !32 { 42entry: 43 tail call void @llvm.dbg.value(metadata ptr %this, metadata !34, metadata !38), !dbg !44 44 tail call void @llvm.dbg.value(metadata ptr %this, metadata !45, metadata !38) #3, !dbg !47 45 %call.i = tail call ptr @_ZN1AC2Ev(ptr %this) #3, !dbg !48 46 store ptr getelementptr inbounds ([4 x ptr], ptr @_ZTV1B, i64 0, i64 2), ptr %this, align 8, !dbg !48, !tbaa !41 47 ret ptr %this, !dbg !46 48} 49 50; Function Attrs: nounwind readnone 51declare void @llvm.dbg.value(metadata, metadata, metadata) #2 52 53attributes #0 = { nounwind } 54attributes #2 = { nounwind readnone } 55attributes #3 = { nounwind } 56 57!llvm.dbg.cu = !{!0} 58!llvm.module.flags = !{!35, !36} 59!llvm.ident = !{!37} 60 61!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 (trunk 224279) (llvm/trunk 224283)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2) 62!1 = !DIFile(filename: "<stdin>", directory: "") 63!2 = !{} 64!3 = !{!4, !13} 65!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "B", line: 5, size: 64, align: 64, file: !5, elements: !6, vtableHolder: !13, identifier: "_ZTS1B") 66!5 = !DIFile(filename: "test1.cpp", directory: "") 67!6 = !{!7, !8, !12} 68!7 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !4, baseType: !13) 69!8 = !DISubprogram(name: "B", line: 6, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 6, file: !5, scope: !4, type: !9) 70!9 = !DISubroutineType(types: !10) 71!10 = !{null, !11} 72!11 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4) 73!12 = !DISubprogram(name: "~B", line: 7, isLocal: false, isDefinition: false, virtuality: DW_VIRTUALITY_virtual, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 7, file: !5, scope: !4, type: !9, containingType: !4) 74!13 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, size: 64, align: 64, file: !5, elements: !14, vtableHolder: !13, identifier: "_ZTS1A") 75!14 = !{!15, !22, !26} 76!15 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", size: 64, flags: DIFlagArtificial, file: !5, scope: !16, baseType: !17) 77!16 = !DIFile(filename: "test1.cpp", directory: "") 78!17 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !18) 79!18 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", size: 64, baseType: !19) 80!19 = !DISubroutineType(types: !20) 81!20 = !{!21} 82!21 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 83!22 = !DISubprogram(name: "A", line: 2, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2, file: !5, scope: !13, type: !23) 84!23 = !DISubroutineType(types: !24) 85!24 = !{null, !25} 86!25 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !13) 87!26 = !DISubprogram(name: "~A", line: 3, isLocal: false, isDefinition: false, virtuality: DW_VIRTUALITY_virtual, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !5, scope: !13, type: !23, containingType: !13) 88!28 = distinct !DISubprogram(name: "B", linkageName: "_ZN1BC2Ev", line: 9, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 9, file: !5, scope: !4, type: !9, declaration: !8, retainedNodes: !29) 89!29 = !{!30} 90!30 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31) 91!31 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !4) 92!32 = distinct !DISubprogram(name: "B", linkageName: "_ZN1BC1Ev", line: 9, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 9, file: !5, scope: !4, type: !9, declaration: !8, retainedNodes: !33) 93!33 = !{!34} 94!34 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !32, type: !31) 95!35 = !{i32 2, !"Dwarf Version", i32 4} 96!36 = !{i32 2, !"Debug Info Version", i32 3} 97!37 = !{!"clang version 3.6.0 (trunk 224279) (llvm/trunk 224283)"} 98!38 = !DIExpression() 99!39 = !DILocation(line: 0, scope: !28) 100!40 = !DILocation(line: 9, scope: !28) 101!41 = !{!42, !42, i64 0} 102!42 = !{!"vtable pointer", !43, i64 0} 103!43 = !{!"Simple C/C++ TBAA"} 104!44 = !DILocation(line: 0, scope: !32) 105!45 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31) 106!46 = !DILocation(line: 9, scope: !32) 107!47 = !DILocation(line: 0, scope: !28, inlinedAt: !46) 108!48 = !DILocation(line: 9, scope: !28, inlinedAt: !46) 109