| # RUN: llc -o - %s -mtriple=thumbv7-apple-ios -start-after=patchable-function | FileCheck %s |
| # RUN: llc -o - %s -mtriple=thumbv6-apple-ios -start-after=patchable-function | FileCheck %s |
| |
| # struct A { |
| # A(); |
| # virtual ~A(); |
| # }; |
| # struct B : A { |
| # B(); |
| # virtual ~B(); |
| # }; |
| # B::B() {} |
| # CHECK: __ZN1BC1Ev: |
| # CHECK: .loc 1 9 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. |
| |
| --- | |
| %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 !31 { |
| entry: |
| tail call void @llvm.dbg.value(metadata %struct.B* %this, metadata !33, metadata !DIExpression()), !dbg !35 |
| %0 = bitcast %struct.B* %this to %struct.A*, !dbg !36 |
| %call = tail call %struct.A* @_ZN1AC2Ev(%struct.A* %0) #0, !dbg !36 |
| %1 = bitcast %struct.B* %this to i32 (...)***, !dbg !36 |
| store i32 (...)** bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV1B, i32 0, i32 2) to i32 (...)**), i32 (...)*** %1, align 4, !dbg !36, !tbaa !37 |
| ret %struct.B* %this, !dbg !36 |
| } |
| |
| declare %struct.A* @_ZN1AC2Ev(%struct.A*) |
| |
| ; Function Attrs: nounwind |
| define %struct.B* @_ZN1BC1Ev(%struct.B* %this) unnamed_addr #0 align 2 !dbg !40 { |
| entry: |
| tail call void @llvm.dbg.value(metadata %struct.B* %this, metadata !42, metadata !DIExpression()), !dbg !43 |
| tail call void @llvm.dbg.value(metadata %struct.B* %this, metadata !33, metadata !DIExpression()) #0, !dbg !44 |
| %0 = bitcast %struct.B* %this to %struct.A*, !dbg !46 |
| %call.i = tail call %struct.A* @_ZN1AC2Ev(%struct.A* %0) #0, !dbg !46 |
| %1 = bitcast %struct.B* %this to i32 (...)***, !dbg !46 |
| store i32 (...)** bitcast (i8** getelementptr inbounds ([4 x i8*], [4 x i8*]* @_ZTV1B, i32 0, i32 2) to i32 (...)**), i32 (...)*** %1, align 4, !dbg !46, !tbaa !37 |
| ret %struct.B* %this, !dbg !45 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| declare void @_Unwind_SjLj_Register({ i8*, i32, [4 x i32], i8*, i8*, [5 x i8*] }*) |
| |
| declare void @_Unwind_SjLj_Unregister({ i8*, i32, [4 x i32], i8*, i8*, [5 x i8*] }*) |
| |
| ; Function Attrs: nounwind readnone |
| declare i8* @llvm.frameaddress(i32) #2 |
| |
| ; Function Attrs: nounwind |
| declare i8* @llvm.stacksave() #0 |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.stackrestore(i8*) #0 |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.eh.sjlj.setup.dispatch() #0 |
| |
| ; Function Attrs: nounwind readnone |
| declare i8* @llvm.eh.sjlj.lsda() #2 |
| |
| ; Function Attrs: nounwind readnone |
| declare void @llvm.eh.sjlj.callsite(i32) #2 |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.eh.sjlj.functioncontext(i8*) #0 |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.stackprotector(i8*, i8**) #0 |
| |
| attributes #0 = { nounwind } |
| attributes #1 = { nounwind readnone speculatable } |
| attributes #2 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!26, !27, !28, !29} |
| !llvm.ident = !{!30} |
| |
| !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) |
| !1 = !DIFile(filename: "<stdin>", directory: "") |
| !2 = !{} |
| !3 = !{!4, !8} |
| !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "B", file: !5, line: 5, size: 32, align: 32, elements: !6, vtableHolder: !8, identifier: "_ZTS1B") |
| !5 = !DIFile(filename: "test1.cpp", directory: "") |
| !6 = !{!7, !21, !25} |
| !7 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !4, baseType: !8) |
| !8 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !5, line: 1, size: 32, align: 32, elements: !9, vtableHolder: !8, identifier: "_ZTS1A") |
| !9 = !{!10, !16, !20} |
| !10 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", scope: !5, file: !5, baseType: !11, size: 32, flags: DIFlagArtificial) |
| !11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 32) |
| !12 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: !13, size: 32) |
| !13 = !DISubroutineType(types: !14) |
| !14 = !{!15} |
| !15 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) |
| !16 = !DISubprogram(name: "A", scope: !8, file: !5, line: 2, type: !17, isLocal: false, isDefinition: false, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true) |
| !17 = !DISubroutineType(types: !18) |
| !18 = !{null, !19} |
| !19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 32, align: 32, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !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) |
| !21 = !DISubprogram(name: "B", scope: !4, file: !5, line: 6, type: !22, isLocal: false, isDefinition: false, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: true) |
| !22 = !DISubroutineType(types: !23) |
| !23 = !{null, !24} |
| !24 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 32, align: 32, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !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) |
| !26 = !{i32 2, !"Dwarf Version", i32 4} |
| !27 = !{i32 2, !"Debug Info Version", i32 3} |
| !28 = !{i32 1, !"wchar_size", i32 4} |
| !29 = !{i32 1, !"min_enum_size", i32 4} |
| !30 = !{!"clang version 3.6.0 (trunk 224279) (llvm/trunk 224283)"} |
| !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) |
| !32 = !{!33} |
| !33 = !DILocalVariable(name: "this", arg: 1, scope: !31, type: !34, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !34 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !4, size: 32, align: 32) |
| !35 = !DILocation(line: 0, scope: !31) |
| !36 = !DILocation(line: 9, scope: !31) |
| !37 = !{!38, !38, i64 0} |
| !38 = !{!"vtable pointer", !39, i64 0} |
| !39 = !{!"Simple C/C++ TBAA"} |
| !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) |
| !41 = !{!42} |
| !42 = !DILocalVariable(name: "this", arg: 1, scope: !40, type: !34, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !43 = !DILocation(line: 0, scope: !40) |
| !44 = !DILocation(line: 0, scope: !31, inlinedAt: !45) |
| !45 = !DILocation(line: 9, scope: !40) |
| !46 = !DILocation(line: 9, scope: !31, inlinedAt: !45) |
| |
| ... |
| --- |
| name: _ZN1BC2Ev |
| alignment: 1 |
| liveins: |
| - { reg: '$r0' } |
| frameInfo: |
| stackSize: 8 |
| maxAlignment: 4 |
| adjustsStack: true |
| hasCalls: true |
| maxCallFrameSize: 0 |
| stack: |
| - { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, stack-id: 0, |
| callee-saved-register: '$lr', callee-saved-restored: false } |
| - { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, stack-id: 0, |
| callee-saved-register: '$r4' } |
| body: | |
| bb.0.entry: |
| frame-setup tPUSH 14, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp |
| frame-setup CFI_INSTRUCTION def_cfa_offset 8 |
| frame-setup CFI_INSTRUCTION offset $lr, -4 |
| frame-setup CFI_INSTRUCTION offset $r4, -8 |
| DBG_VALUE debug-use $r0, debug-use $noreg, !33, !DIExpression(), debug-location !35 |
| $r4 = tMOVr $r0, 14, $noreg |
| DBG_VALUE debug-use $r4, debug-use $noreg, !33, !DIExpression(), debug-location !35 |
| tBL 14, $noreg, @_ZN1AC2Ev, csr_ios, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit-def $sp, implicit-def dead $r0, debug-location !36 |
| $r0 = t2MOVi16_ga_pcrel target-flags(arm-lo16, arm-nonlazy) @_ZTV1B, 0, debug-location !36 |
| $r0 = t2MOVTi16_ga_pcrel killed $r0, target-flags(arm-hi16, arm-nonlazy) @_ZTV1B, 0, debug-location !36 |
| $r0 = tPICADD killed $r0, 0, debug-location !36 |
| renamable $r0 = tLDRi killed renamable $r0, 0, 14, $noreg, debug-location !36 :: (load 4 from got) |
| renamable $r0, dead $cpsr = nuw tADDi8 killed renamable $r0, 8, 14, $noreg, debug-location !36 |
| tSTRi killed renamable $r0, renamable $r4, 0, 14, $noreg, debug-location !36 :: (store 4 into %ir.1, !tbaa !37) |
| $r0 = tMOVr killed $r4, 14, $noreg, debug-location !36 |
| tPOP_RET 14, $noreg, def $r4, def $pc, implicit killed $r0, debug-location !36 |
| |
| ... |
| --- |
| name: _ZN1BC1Ev |
| alignment: 1 |
| liveins: |
| - { reg: '$r0' } |
| frameInfo: |
| stackSize: 8 |
| maxAlignment: 4 |
| adjustsStack: true |
| hasCalls: true |
| maxCallFrameSize: 0 |
| stack: |
| - { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, stack-id: 0, |
| callee-saved-register: '$lr', callee-saved-restored: false } |
| - { id: 1, type: spill-slot, offset: -8, size: 4, alignment: 4, stack-id: 0, |
| callee-saved-register: '$r4' } |
| body: | |
| bb.0.entry: |
| frame-setup tPUSH 14, $noreg, killed $r4, killed $lr, implicit-def $sp, implicit $sp |
| frame-setup CFI_INSTRUCTION def_cfa_offset 8 |
| frame-setup CFI_INSTRUCTION offset $lr, -4 |
| frame-setup CFI_INSTRUCTION offset $r4, -8 |
| DBG_VALUE debug-use $r0, debug-use $noreg, !42, !DIExpression(), debug-location !43 |
| DBG_VALUE debug-use $r0, debug-use $noreg, !33, !DIExpression(), debug-location !44 |
| $r4 = tMOVr $r0, 14, $noreg |
| DBG_VALUE debug-use $r4, debug-use $noreg, !33, !DIExpression(), debug-location !44 |
| DBG_VALUE debug-use $r4, debug-use $noreg, !42, !DIExpression(), debug-location !43 |
| tBL 14, $noreg, @_ZN1AC2Ev, csr_ios, implicit-def dead $lr, implicit $sp, implicit killed $r0, implicit-def $sp, implicit-def dead $r0, debug-location !46 |
| $r0 = t2MOVi16_ga_pcrel target-flags(arm-lo16, arm-nonlazy) @_ZTV1B, 0, debug-location !46 |
| $r0 = t2MOVTi16_ga_pcrel killed $r0, target-flags(arm-hi16, arm-nonlazy) @_ZTV1B, 0, debug-location !46 |
| $r0 = tPICADD killed $r0, 0, debug-location !46 |
| renamable $r0 = tLDRi killed renamable $r0, 0, 14, $noreg, debug-location !46 :: (load 4 from got) |
| renamable $r0, dead $cpsr = nuw tADDi8 killed renamable $r0, 8, 14, $noreg, debug-location !46 |
| tSTRi killed renamable $r0, renamable $r4, 0, 14, $noreg, debug-location !46 :: (store 4 into %ir.1, !tbaa !37) |
| $r0 = tMOVr killed $r4, 14, $noreg, debug-location !45 |
| tPOP_RET 14, $noreg, def $r4, def $pc, implicit killed $r0, debug-location !45 |
| |
| ... |
