| ; struct A { |
| ; A(); |
| ; virtual ~A(); |
| ; }; |
| ; struct B : A { |
| ; B(); |
| ; virtual ~B(); |
| ; }; |
| ; B::B() {} |
| ; CHECK: __ZN1BC1Ev: |
| ; CHECK: .loc 1 [[@LINE-2]] 0 prologue_end |
| ; CHECK-NOT: .loc 1 0 0 prologue_end |
| |
| ; The location of the prologue_end marker should not be affected by the presence |
| ; of CFI instructions. |
| |
| ; RUN: llc -fast-isel -O0 -filetype=asm < %s | FileCheck %s |
| |
| ; ModuleID = 'test1.cpp' |
| target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64-apple-ios" |
| |
| %struct.B = type { %struct.A } |
| %struct.A = type { i32 (...)** } |
| |
| @_ZTV1B = external unnamed_addr constant [4 x i8*] |
| |
| ; Function Attrs: nounwind |
| define %struct.B* @_ZN1BC2Ev(%struct.B* %this) unnamed_addr #0 align 2 !dbg !28 { |
| entry: |
| tail call void @llvm.dbg.value(metadata %struct.B* %this, metadata !30, metadata !38), !dbg !39 |
| %0 = getelementptr inbounds %struct.B, %struct.B* %this, i64 0, i32 0, !dbg !40 |
| %call = tail call %struct.A* @_ZN1AC2Ev(%struct.A* %0) #3, !dbg !40 |
| %1 = getelementptr inbounds %struct.B, %struct.B* %this, i64 0, i32 0, i32 0, !dbg !40 |
| store i32 (...)** bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV1B, i64 0, i64 2) to i32 (...)**), i32 (...)*** %1, align 8, !dbg !40, !tbaa !41 |
| ret %struct.B* %this, !dbg !40 |
| } |
| |
| declare %struct.A* @_ZN1AC2Ev(%struct.A*) |
| |
| ; Function Attrs: nounwind |
| define %struct.B* @_ZN1BC1Ev(%struct.B* %this) unnamed_addr #0 align 2 !dbg !32 { |
| entry: |
| tail call void @llvm.dbg.value(metadata %struct.B* %this, metadata !34, metadata !38), !dbg !44 |
| tail call void @llvm.dbg.value(metadata %struct.B* %this, metadata !45, metadata !38) #3, !dbg !47 |
| %0 = getelementptr inbounds %struct.B, %struct.B* %this, i64 0, i32 0, !dbg !48 |
| %call.i = tail call %struct.A* @_ZN1AC2Ev(%struct.A* %0) #3, !dbg !48 |
| %1 = getelementptr inbounds %struct.B, %struct.B* %this, i64 0, i32 0, i32 0, !dbg !48 |
| store i32 (...)** bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV1B, i64 0, i64 2) to i32 (...)**), i32 (...)*** %1, align 8, !dbg !48, !tbaa !41 |
| ret %struct.B* %this, !dbg !46 |
| } |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #2 |
| |
| attributes #0 = { nounwind } |
| attributes #2 = { nounwind readnone } |
| attributes #3 = { nounwind } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!35, !36} |
| !llvm.ident = !{!37} |
| |
| !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) |
| !1 = !DIFile(filename: "<stdin>", directory: "") |
| !2 = !{} |
| !3 = !{!4, !13} |
| !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "B", line: 5, size: 64, align: 64, file: !5, elements: !6, vtableHolder: !13, identifier: "_ZTS1B") |
| !5 = !DIFile(filename: "test1.cpp", directory: "") |
| !6 = !{!7, !8, !12} |
| !7 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !4, baseType: !13) |
| !8 = !DISubprogram(name: "B", line: 6, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 6, file: !5, scope: !4, type: !9) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{null, !11} |
| !11 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4) |
| !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) |
| !13 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, size: 64, align: 64, file: !5, elements: !14, vtableHolder: !13, identifier: "_ZTS1A") |
| !14 = !{!15, !22, !26} |
| !15 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", size: 64, flags: DIFlagArtificial, file: !5, scope: !16, baseType: !17) |
| !16 = !DIFile(filename: "test1.cpp", directory: "") |
| !17 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !18) |
| !18 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", size: 64, baseType: !19) |
| !19 = !DISubroutineType(types: !20) |
| !20 = !{!21} |
| !21 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !22 = !DISubprogram(name: "A", line: 2, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 2, file: !5, scope: !13, type: !23) |
| !23 = !DISubroutineType(types: !24) |
| !24 = !{null, !25} |
| !25 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !13) |
| !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) |
| !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) |
| !29 = !{!30} |
| !30 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31) |
| !31 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !4) |
| !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) |
| !33 = !{!34} |
| !34 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !32, type: !31) |
| !35 = !{i32 2, !"Dwarf Version", i32 4} |
| !36 = !{i32 2, !"Debug Info Version", i32 3} |
| !37 = !{!"clang version 3.6.0 (trunk 224279) (llvm/trunk 224283)"} |
| !38 = !DIExpression() |
| !39 = !DILocation(line: 0, scope: !28) |
| !40 = !DILocation(line: 9, scope: !28) |
| !41 = !{!42, !42, i64 0} |
| !42 = !{!"vtable pointer", !43, i64 0} |
| !43 = !{!"Simple C/C++ TBAA"} |
| !44 = !DILocation(line: 0, scope: !32) |
| !45 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !28, type: !31) |
| !46 = !DILocation(line: 9, scope: !32) |
| !47 = !DILocation(line: 0, scope: !28, inlinedAt: !46) |
| !48 = !DILocation(line: 9, scope: !28, inlinedAt: !46) |