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1# RUN: llc -o - %s -mtriple=thumbv7-apple-ios -start-before=livedebugvalues | FileCheck %s2# RUN: llc -o - %s -mtriple=thumbv6-apple-ios -start-before=livedebugvalues | FileCheck %s3 4# struct A {5# A();6# virtual ~A();7# };8# struct B : A {9# B();10# virtual ~B();11# };12# B::B() {}13# CHECK: __ZN1BC1Ev:14# CHECK: .loc 1 9 0 prologue_end15# CHECK-NOT: .loc 1 0 0 prologue_end16#17# The location of the prologue_end marker should not be affected by the presence18# of CFI instructions.19 20--- |21 %struct.B = type { %struct.A }22 %struct.A = type { ptr }23 24 @_ZTV1B = external unnamed_addr constant [4 x ptr]25 26 ; Function Attrs: nounwind27 define ptr @_ZN1BC2Ev(ptr %this) unnamed_addr #0 align 2 !dbg !31 {28 entry:29 tail call void @llvm.dbg.value(metadata ptr %this, metadata !33, metadata !DIExpression()), !dbg !3530 %0 = bitcast ptr %this to ptr, !dbg !3631 %call = tail call ptr @_ZN1AC2Ev(ptr %0) #0, !dbg !3632 %1 = bitcast ptr %this to ptr, !dbg !3633 store ptr getelementptr inbounds ([4 x ptr], ptr @_ZTV1B, i32 0, i32 2), ptr %1, align 4, !dbg !36, !tbaa !3734 ret ptr %this, !dbg !3635 }36 37 declare ptr @_ZN1AC2Ev(ptr)38 39 ; Function Attrs: nounwind40 define ptr @_ZN1BC1Ev(ptr %this) unnamed_addr #0 align 2 !dbg !40 {41 entry:42 tail call void @llvm.dbg.value(metadata ptr %this, metadata !42, metadata !DIExpression()), !dbg !4343 tail call void @llvm.dbg.value(metadata ptr %this, metadata !33, metadata !DIExpression()) #0, !dbg !4444 %0 = bitcast ptr %this to ptr, !dbg !4645 %call.i = tail call ptr @_ZN1AC2Ev(ptr %0) #0, !dbg !4646 %1 = bitcast ptr %this to ptr, !dbg !4647 store ptr getelementptr inbounds ([4 x ptr], ptr @_ZTV1B, i32 0, i32 2), ptr %1, align 4, !dbg !46, !tbaa !3748 ret ptr %this, !dbg !4549 }50 51 ; Function Attrs: nounwind readnone speculatable52 declare void @llvm.dbg.value(metadata, metadata, metadata) #153 54 declare void @_Unwind_SjLj_Register(ptr)55 56 declare void @_Unwind_SjLj_Unregister(ptr)57 58 ; Function Attrs: nounwind readnone59 declare ptr @llvm.frameaddress(i32) #260 61 ; Function Attrs: nounwind62 declare ptr @llvm.stacksave() #063 64 ; Function Attrs: nounwind65 declare void @llvm.stackrestore(ptr) #066 67 ; Function Attrs: nounwind68 declare void @llvm.eh.sjlj.setup.dispatch() #069 70 ; Function Attrs: nounwind readnone71 declare ptr @llvm.eh.sjlj.lsda() #272 73 ; Function Attrs: nounwind readnone74 declare void @llvm.eh.sjlj.callsite(i32) #275 76 ; Function Attrs: nounwind77 declare void @llvm.eh.sjlj.functioncontext(ptr) #078 79 ; Function Attrs: nounwind80 declare void @llvm.stackprotector(ptr, ptr) #081 82 attributes #0 = { nounwind "target-features"="+v8m" }83 attributes #1 = { nounwind readnone speculatable }84 attributes #2 = { nounwind readnone }85 86 !llvm.dbg.cu = !{!0}87 !llvm.module.flags = !{!26, !27, !28, !29}88 !llvm.ident = !{!30}89 90 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.6.0 (trunk 224279) (llvm/trunk 224283)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, globals: !2, imports: !2)91 !1 = !DIFile(filename: "<stdin>", directory: "")92 !2 = !{}93 !3 = !{!4, !8}94 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "B", file: !5, line: 5, size: 32, align: 32, elements: !6, vtableHolder: !8, identifier: "_ZTS1B")95 !5 = !DIFile(filename: "test1.cpp", directory: "")96 !6 = !{!7, !21, !25}97 !7 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !4, baseType: !8)98 !8 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !5, line: 1, size: 32, align: 32, elements: !9, vtableHolder: !8, identifier: "_ZTS1A")99 !9 = !{!10, !16, !20}100 !10 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", scope: !5, file: !5, baseType: !11, size: 32, flags: DIFlagArtificial)101 !11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 32)102 !12 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: !13, size: 32)103 !13 = !DISubroutineType(types: !14)104 !14 = !{!15}105 !15 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)106 !16 = !DISubprogram(name: "A", scope: !8, file: !5, line: 2, type: !17, isLocal: false, isDefinition: false, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true)107 !17 = !DISubroutineType(types: !18)108 !18 = !{null, !19}109 !19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 32, align: 32, flags: DIFlagArtificial | DIFlagObjectPointer)110 !20 = !DISubprogram(name: "~A", scope: !8, file: !5, line: 3, type: !17, isLocal: false, isDefinition: false, scopeLine: 3, containingType: !8, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped, isOptimized: true)111 !21 = !DISubprogram(name: "B", scope: !4, file: !5, line: 6, type: !22, isLocal: false, isDefinition: false, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true)112 !22 = !DISubroutineType(types: !23)113 !23 = !{null, !24}114 !24 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 32, align: 32, flags: DIFlagArtificial | DIFlagObjectPointer)115 !25 = !DISubprogram(name: "~B", scope: !4, file: !5, line: 7, type: !22, isLocal: false, isDefinition: false, scopeLine: 7, containingType: !4, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped, isOptimized: true)116 !26 = !{i32 2, !"Dwarf Version", i32 4}117 !27 = !{i32 2, !"Debug Info Version", i32 3}118 !28 = !{i32 1, !"wchar_size", i32 4}119 !29 = !{i32 1, !"min_enum_size", i32 4}120 !30 = !{!"clang version 3.6.0 (trunk 224279) (llvm/trunk 224283)"}121 !31 = distinct !DISubprogram(name: "B", linkageName: "_ZN1BC2Ev", scope: !4, file: !5, line: 9, type: !22, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !21, retainedNodes: !32)122 !32 = !{!33}123 !33 = !DILocalVariable(name: "this", arg: 1, scope: !31, type: !34, flags: DIFlagArtificial | DIFlagObjectPointer)124 !34 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 32, align: 32)125 !35 = !DILocation(line: 0, scope: !31)126 !36 = !DILocation(line: 9, scope: !31)127 !37 = !{!38, !38, i64 0}128 !38 = !{!"vtable pointer", !39, i64 0}129 !39 = !{!"Simple C/C++ TBAA"}130 !40 = distinct !DISubprogram(name: "B", linkageName: "_ZN1BC1Ev", scope: !4, file: !5, line: 9, type: !22, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !21, retainedNodes: !41)131 !41 = !{!42}132 !42 = !DILocalVariable(name: "this", arg: 1, scope: !40, type: !34, flags: DIFlagArtificial | DIFlagObjectPointer)133 !43 = !DILocation(line: 0, scope: !40)134 !44 = !DILocation(line: 0, scope: !31, inlinedAt: !45)135 !45 = !DILocation(line: 9, scope: !40)136 !46 = !DILocation(line: 9, scope: !31, inlinedAt: !45)137 138...139---140name: _ZN1BC2Ev141alignment: 2142tracksRegLiveness: true143liveins:144 - { reg: '$r0' }145frameInfo:146 stackSize: 8147 maxAlignment: 4148 adjustsStack: true149 hasCalls: true150 maxCallFrameSize: 0151stack:152 - { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, stack-id: default,153 callee-saved-register: '$lr', callee-saved-restored: false }154 - { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, stack-id: default,155 callee-saved-register: '$r4' }156body: |157 bb.0.entry:158 liveins: $r0, $r4, $lr159 160 frame-setup tPUSH 14, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp161 frame-setup CFI_INSTRUCTION def_cfa_offset 8162 frame-setup CFI_INSTRUCTION offset $lr, -4163 frame-setup CFI_INSTRUCTION offset $r4, -8164 DBG_VALUE debug-use $r0, debug-use $noreg, !33, !DIExpression(), debug-location !35165 $r4 = tMOVr $r0, 14, $noreg166 DBG_VALUE debug-use $r4, debug-use $noreg, !33, !DIExpression(), debug-location !35167 tBL 14, $noreg, @_ZN1AC2Ev, csr_ios, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit-def $sp, implicit-def dead $r0, debug-location !36168 $r0 = t2MOVi16_ga_pcrel target-flags(arm-lo16, arm-nonlazy) @_ZTV1B, 0, debug-location !36169 $r0 = t2MOVTi16_ga_pcrel killed $r0, target-flags(arm-hi16, arm-nonlazy) @_ZTV1B, 0, debug-location !36170 $r0 = tPICADD killed $r0, 0, debug-location !36171 renamable $r0 = tLDRi killed renamable $r0, 0, 14, $noreg, debug-location !36 :: (load (s32) from got)172 renamable $r0, dead $cpsr = nuw tADDi8 killed renamable $r0, 8, 14, $noreg, debug-location !36173 tSTRi killed renamable $r0, renamable $r4, 0, 14, $noreg, debug-location !36 :: (store (s32) into %ir.1, !tbaa !37)174 $r0 = tMOVr killed $r4, 14, $noreg, debug-location !36175 tPOP_RET 14, $noreg, def $r4, def $pc, implicit killed $r0, debug-location !36176 177...178---179name: _ZN1BC1Ev180alignment: 2181tracksRegLiveness: true182liveins:183 - { reg: '$r0' }184frameInfo:185 stackSize: 8186 maxAlignment: 4187 adjustsStack: true188 hasCalls: true189 maxCallFrameSize: 0190stack:191 - { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, stack-id: default,192 callee-saved-register: '$lr', callee-saved-restored: false }193 - { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, stack-id: default,194 callee-saved-register: '$r4' }195body: |196 bb.0.entry:197 liveins: $r0, $r4, $lr198 199 frame-setup tPUSH 14, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp200 frame-setup CFI_INSTRUCTION def_cfa_offset 8201 frame-setup CFI_INSTRUCTION offset $lr, -4202 frame-setup CFI_INSTRUCTION offset $r4, -8203 DBG_VALUE debug-use $r0, debug-use $noreg, !42, !DIExpression(), debug-location !43204 DBG_VALUE debug-use $r0, debug-use $noreg, !33, !DIExpression(), debug-location !44205 $r4 = tMOVr $r0, 14, $noreg206 DBG_VALUE debug-use $r4, debug-use $noreg, !33, !DIExpression(), debug-location !44207 DBG_VALUE debug-use $r4, debug-use $noreg, !42, !DIExpression(), debug-location !43208 tBL 14, $noreg, @_ZN1AC2Ev, csr_ios, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit-def $sp, implicit-def dead $r0, debug-location !46209 $r0 = t2MOVi16_ga_pcrel target-flags(arm-lo16, arm-nonlazy) @_ZTV1B, 0, debug-location !46210 $r0 = t2MOVTi16_ga_pcrel killed $r0, target-flags(arm-hi16, arm-nonlazy) @_ZTV1B, 0, debug-location !46211 $r0 = tPICADD killed $r0, 0, debug-location !46212 renamable $r0 = tLDRi killed renamable $r0, 0, 14, $noreg, debug-location !46 :: (load (s32) from got)213 renamable $r0, dead $cpsr = nuw tADDi8 killed renamable $r0, 8, 14, $noreg, debug-location !46214 tSTRi killed renamable $r0, renamable $r4, 0, 14, $noreg, debug-location !46 :: (store (s32) into %ir.1, !tbaa !37)215 $r0 = tMOVr killed $r4, 14, $noreg, debug-location !45216 tPOP_RET 14, $noreg, def $r4, def $pc, implicit killed $r0, debug-location !45217 218...219