From 2ec3f6d3032c678864690cb946688dfeeefc6365 Mon Sep 17 00:00:00 2001 From: Reid Kleckner Date: Wed, 22 Jun 2016 18:31:14 +0000 Subject: [PATCH] [codeview] Add IntroducingVirtual debug info flag CodeView needs to know if a virtual method was introduced in the current class, and base classes may not have complete type information, so we need to thread this bit through from the frontend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273453 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/IR/DebugInfoFlags.def | 2 +- lib/CodeGen/AsmPrinter/CodeViewDebug.cpp | 27 +- test/DebugInfo/COFF/virtual-method-kinds.ll | 294 ++++++++++++++++++++ 3 files changed, 301 insertions(+), 22 deletions(-) create mode 100644 test/DebugInfo/COFF/virtual-method-kinds.ll diff --git a/include/llvm/IR/DebugInfoFlags.def b/include/llvm/IR/DebugInfoFlags.def index 4c38928f3ea..870961c41b9 100644 --- a/include/llvm/IR/DebugInfoFlags.def +++ b/include/llvm/IR/DebugInfoFlags.def @@ -36,6 +36,6 @@ HANDLE_DI_FLAG((1 << 15), ExternalTypeRef) HANDLE_DI_FLAG((1 << 16), SingleInheritance) HANDLE_DI_FLAG((2 << 16), MultipleInheritance) HANDLE_DI_FLAG((3 << 16), VirtualInheritance) -// Next flag is 1 << 18 +HANDLE_DI_FLAG((1 << 18), IntroducedVirtual) #undef HANDLE_DI_FLAG diff --git a/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp index da69f8b6ab6..3e4563947a1 100644 --- a/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp +++ b/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp @@ -12,6 +12,7 @@ //===----------------------------------------------------------------------===// #include "CodeViewDebug.h" +#include "llvm/ADT/TinyPtrVector.h" #include "llvm/DebugInfo/CodeView/CodeView.h" #include "llvm/DebugInfo/CodeView/FieldListRecordBuilder.h" #include "llvm/DebugInfo/CodeView/Line.h" @@ -1174,12 +1175,6 @@ TypeIndex CodeViewDebug::lowerTypeMemberFunction(const DISubroutineType *Ty, // Lower the containing class type. TypeIndex ClassType = getTypeIndex(ClassTy); - // While processing the class type it is possible we already created this - // member function. If so, we check here and return the existing one. - auto I = TypeIndices.find({Ty, ClassTy}); - if (I != TypeIndices.end()) - return I->second; - SmallVector ReturnAndArgTypeIndices; for (DITypeRef ArgTypeRef : Ty->getTypeArray()) ReturnAndArgTypeIndices.push_back(getTypeIndex(ArgTypeRef)); @@ -1313,12 +1308,7 @@ struct llvm::ClassInfo { // [MemberInfo] typedef std::vector MemberList; - struct MethodInfo { - const DISubprogram *Method; - bool Introduced; - }; - // [MethodInfo] - typedef std::vector MethodsList; + typedef TinyPtrVector MethodsList; // MethodName -> MethodsList typedef MapVector MethodsMap; @@ -1367,10 +1357,7 @@ ClassInfo CodeViewDebug::collectClassInfo(const DICompositeType *Ty) { if (!Element) continue; if (auto *SP = dyn_cast(Element)) { - // Non-virtual methods does not need the introduced marker. - // Set it to false. - bool Introduced = false; - Info.Methods[SP->getRawName()].push_back({SP, Introduced}); + Info.Methods[SP->getRawName()].push_back(SP); } else if (auto *DDTy = dyn_cast(Element)) { if (DDTy->getTag() == dwarf::DW_TAG_member) collectMemberInfo(Info, DDTy); @@ -1491,11 +1478,9 @@ CodeViewDebug::lowerRecordFieldList(const DICompositeType *Ty) { StringRef Name = MethodItr.first->getString(); std::vector Methods; - for (ClassInfo::MethodInfo &MethodInfo : MethodItr.second) { - const DISubprogram *SP = MethodInfo.Method; - bool Introduced = MethodInfo.Introduced; - - TypeIndex MethodType = getTypeIndex(SP->getType(), Ty); + for (const DISubprogram *SP : MethodItr.second) { + TypeIndex MethodType = getMemberFunctionType(SP, Ty); + bool Introduced = SP->getFlags() & DINode::FlagIntroducedVirtual; unsigned VFTableOffset = -1; if (Introduced) diff --git a/test/DebugInfo/COFF/virtual-method-kinds.ll b/test/DebugInfo/COFF/virtual-method-kinds.ll new file mode 100644 index 00000000000..d08795a82ef --- /dev/null +++ b/test/DebugInfo/COFF/virtual-method-kinds.ll @@ -0,0 +1,294 @@ +; RUN: llc < %s -filetype=obj | llvm-readobj - -codeview | FileCheck %s + +; Check for the appropriate MethodKind below. + +; C++ source used to generate IR: +; $ cat t.cpp +; struct A { +; virtual void f(); // IntroducingVirtual +; virtual void g() = 0; // PureIntroducingVirtual +; }; +; struct B : A { +; void f() override = 0; // PureVirtual +; void g() override; // Virtual +; }; +; struct C : B { +; void f() override; // Virtual +; void g() override; // Virtual +; }; +; C *p = new C; +; $ clang t.cpp -S -emit-llvm -g -gcodeview -o t.ll + +; CHECK: OneMethod { +; CHECK-NEXT: AccessSpecifier: Public (0x3) +; CHECK-NEXT: MethodKind: Virtual (0x1) +; CHECK-NEXT: Type: void C::() ({{.*}}) +; CHECK-NEXT: Name: f +; CHECK-NEXT: } +; CHECK-NEXT: OneMethod { +; CHECK-NEXT: AccessSpecifier: Public (0x3) +; CHECK-NEXT: MethodKind: Virtual (0x1) +; CHECK-NEXT: Type: void C::() ({{.*}}) +; CHECK-NEXT: Name: g +; CHECK-NEXT: } + +; CHECK: OneMethod { +; CHECK-NEXT: AccessSpecifier: Public (0x3) +; CHECK-NEXT: MethodKind: PureVirtual (0x5) +; CHECK-NEXT: Type: void B::() ({{.*}}) +; CHECK-NEXT: Name: f +; CHECK-NEXT: } +; CHECK-NEXT: OneMethod { +; CHECK-NEXT: AccessSpecifier: Public (0x3) +; CHECK-NEXT: MethodKind: Virtual (0x1) +; CHECK-NEXT: Type: void B::() ({{.*}}) +; CHECK-NEXT: Name: g +; CHECK-NEXT: } + +; CHECK: OneMethod { +; CHECK-NEXT: AccessSpecifier: Public (0x3) +; CHECK-NEXT: MethodKind: IntroducingVirtual (0x4) +; CHECK-NEXT: Type: void A::() ({{.*}}) +; CHECK-NEXT: VFTableOffset: 0x0 +; CHECK-NEXT: Name: f +; CHECK-NEXT: } +; CHECK-NEXT: OneMethod { +; CHECK-NEXT: AccessSpecifier: Public (0x3) +; CHECK-NEXT: MethodKind: PureIntroducingVirtual (0x6) +; CHECK-NEXT: Type: void A::() ({{.*}}) +; CHECK-NEXT: VFTableOffset: 0x8 +; CHECK-NEXT: Name: g +; CHECK-NEXT: } + +; ModuleID = 't.cpp' +source_filename = "t.cpp" +target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-pc-windows-msvc19.0.23918" + +%struct.C = type { %struct.B } +%struct.B = type { %struct.A } +%struct.A = type { i32 (...)** } +%rtti.CompleteObjectLocator = type { i32, i32, i32, i32, i32, i32 } +%rtti.TypeDescriptor7 = type { i8**, i8*, [8 x i8] } +%rtti.ClassHierarchyDescriptor = type { i32, i32, i32, i32 } +%rtti.BaseClassDescriptor = type { i32, i32, i32, i32, i32, i32, i32 } + +$"\01??0C@@QEAA@XZ" = comdat any + +$"\01??0B@@QEAA@XZ" = comdat any + +$"\01??0A@@QEAA@XZ" = comdat any + +$"\01??_7C@@6B@" = comdat largest + +$"\01??_R4C@@6B@" = comdat any + +$"\01??_R0?AUC@@@8" = comdat any + +$"\01??_R3C@@8" = comdat any + +$"\01??_R2C@@8" = comdat any + +$"\01??_R1A@?0A@EA@C@@8" = comdat any + +$"\01??_R1A@?0A@EA@B@@8" = comdat any + +$"\01??_R0?AUB@@@8" = comdat any + +$"\01??_R3B@@8" = comdat any + +$"\01??_R2B@@8" = comdat any + +$"\01??_R1A@?0A@EA@A@@8" = comdat any + +$"\01??_R0?AUA@@@8" = comdat any + +$"\01??_R3A@@8" = comdat any + +$"\01??_R2A@@8" = comdat any + +$"\01??_7B@@6B@" = comdat largest + +$"\01??_R4B@@6B@" = comdat any + +$"\01??_7A@@6B@" = comdat largest + +$"\01??_R4A@@6B@" = comdat any + +@"\01?p@@3PEAUC@@EA" = global %struct.C* null, align 8 +@0 = private unnamed_addr constant [3 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4C@@6B@" to i8*), i8* bitcast (void (%struct.C*)* @"\01?f@C@@UEAAXXZ" to i8*), i8* bitcast (void (%struct.C*)* @"\01?g@C@@UEAAXXZ" to i8*)], comdat($"\01??_7C@@6B@") +@"\01??_R4C@@6B@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUC@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3C@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4C@@6B@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat +@"\01??_7type_info@@6B@" = external constant i8* +@"\01??_R0?AUC@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AUC@@\00" }, comdat +@__ImageBase = external constant i8 +@"\01??_R3C@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 0, i32 3, i32 trunc (i64 sub nuw nsw (i64 ptrtoint ([4 x i32]* @"\01??_R2C@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat +@"\01??_R2C@@8" = linkonce_odr constant [4 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@C@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0], comdat +@"\01??_R1A@?0A@EA@C@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUC@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 2, i32 0, i32 -1, i32 0, i32 64, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3C@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat +@"\01??_R1A@?0A@EA@B@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUB@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 1, i32 0, i32 -1, i32 0, i32 64, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat +@"\01??_R0?AUB@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AUB@@\00" }, comdat +@"\01??_R3B@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 0, i32 2, i32 trunc (i64 sub nuw nsw (i64 ptrtoint ([3 x i32]* @"\01??_R2B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat +@"\01??_R2B@@8" = linkonce_odr constant [3 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0], comdat +@"\01??_R1A@?0A@EA@A@@8" = linkonce_odr constant %rtti.BaseClassDescriptor { i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUA@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 0, i32 -1, i32 0, i32 64, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat +@"\01??_R0?AUA@@@8" = linkonce_odr global %rtti.TypeDescriptor7 { i8** @"\01??_7type_info@@6B@", i8* null, [8 x i8] c".?AUA@@\00" }, comdat +@"\01??_R3A@@8" = linkonce_odr constant %rtti.ClassHierarchyDescriptor { i32 0, i32 0, i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint ([2 x i32]* @"\01??_R2A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat +@"\01??_R2A@@8" = linkonce_odr constant [2 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.BaseClassDescriptor* @"\01??_R1A@?0A@EA@A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0], comdat +@1 = private unnamed_addr constant [3 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4B@@6B@" to i8*), i8* bitcast (void ()* @_purecall to i8*), i8* bitcast (void (%struct.B*)* @"\01?g@B@@UEAAXXZ" to i8*)], comdat($"\01??_7B@@6B@") +@"\01??_R4B@@6B@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUB@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3B@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4B@@6B@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat +@2 = private unnamed_addr constant [3 x i8*] [i8* bitcast (%rtti.CompleteObjectLocator* @"\01??_R4A@@6B@" to i8*), i8* bitcast (void (%struct.A*)* @"\01?f@A@@UEAAXXZ" to i8*), i8* bitcast (void ()* @_purecall to i8*)], comdat($"\01??_7A@@6B@") +@"\01??_R4A@@6B@" = linkonce_odr constant %rtti.CompleteObjectLocator { i32 1, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor7* @"\01??_R0?AUA@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.ClassHierarchyDescriptor* @"\01??_R3A@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.CompleteObjectLocator* @"\01??_R4A@@6B@" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, comdat +@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_t.cpp, i8* null }] + +@"\01??_7C@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ([3 x i8*], [3 x i8*]* @0, i32 0, i32 1) +@"\01??_7B@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ([3 x i8*], [3 x i8*]* @1, i32 0, i32 1) +@"\01??_7A@@6B@" = unnamed_addr alias i8*, getelementptr inbounds ([3 x i8*], [3 x i8*]* @2, i32 0, i32 1) + +; Function Attrs: uwtable +define internal void @"\01??__Ep@@YAXXZ"() #0 !dbg !39 { +entry: + %call = call i8* @"\01??2@YAPEAX_K@Z"(i64 8) #5, !dbg !42 + %0 = bitcast i8* %call to %struct.C*, !dbg !42 + %call1 = call %struct.C* @"\01??0C@@QEAA@XZ"(%struct.C* %0) #6, !dbg !43 + store %struct.C* %0, %struct.C** @"\01?p@@3PEAUC@@EA", align 8, !dbg !42 + ret void, !dbg !43 +} + +; Function Attrs: nobuiltin +declare noalias i8* @"\01??2@YAPEAX_K@Z"(i64) #1 + +; Function Attrs: inlinehint nounwind uwtable +define linkonce_odr %struct.C* @"\01??0C@@QEAA@XZ"(%struct.C* returned %this) unnamed_addr #2 comdat align 2 !dbg !44 { +entry: + %this.addr = alloca %struct.C*, align 8 + store %struct.C* %this, %struct.C** %this.addr, align 8 + call void @llvm.dbg.declare(metadata %struct.C** %this.addr, metadata !46, metadata !47), !dbg !48 + %this1 = load %struct.C*, %struct.C** %this.addr, align 8 + %0 = bitcast %struct.C* %this1 to %struct.B*, !dbg !49 + %call = call %struct.B* @"\01??0B@@QEAA@XZ"(%struct.B* %0) #6, !dbg !49 + %1 = bitcast %struct.C* %this1 to i32 (...)***, !dbg !49 + store i32 (...)** bitcast (i8** @"\01??_7C@@6B@" to i32 (...)**), i32 (...)*** %1, align 8, !dbg !49 + ret %struct.C* %this1, !dbg !49 +} + +; Function Attrs: nounwind readnone +declare void @llvm.dbg.declare(metadata, metadata, metadata) #3 + +; Function Attrs: inlinehint nounwind uwtable +define linkonce_odr %struct.B* @"\01??0B@@QEAA@XZ"(%struct.B* returned %this) unnamed_addr #2 comdat align 2 !dbg !50 { +entry: + %this.addr = alloca %struct.B*, align 8 + store %struct.B* %this, %struct.B** %this.addr, align 8 + call void @llvm.dbg.declare(metadata %struct.B** %this.addr, metadata !52, metadata !47), !dbg !54 + %this1 = load %struct.B*, %struct.B** %this.addr, align 8 + %0 = bitcast %struct.B* %this1 to %struct.A*, !dbg !55 + %call = call %struct.A* @"\01??0A@@QEAA@XZ"(%struct.A* %0) #6, !dbg !55 + %1 = bitcast %struct.B* %this1 to i32 (...)***, !dbg !55 + store i32 (...)** bitcast (i8** @"\01??_7B@@6B@" to i32 (...)**), i32 (...)*** %1, align 8, !dbg !55 + ret %struct.B* %this1, !dbg !55 +} + +declare void @"\01?f@C@@UEAAXXZ"(%struct.C*) unnamed_addr #4 + +declare void @"\01?g@C@@UEAAXXZ"(%struct.C*) unnamed_addr #4 + +; Function Attrs: inlinehint nounwind uwtable +define linkonce_odr %struct.A* @"\01??0A@@QEAA@XZ"(%struct.A* returned %this) unnamed_addr #2 comdat align 2 !dbg !56 { +entry: + %this.addr = alloca %struct.A*, align 8 + store %struct.A* %this, %struct.A** %this.addr, align 8 + call void @llvm.dbg.declare(metadata %struct.A** %this.addr, metadata !58, metadata !47), !dbg !60 + %this1 = load %struct.A*, %struct.A** %this.addr, align 8 + %0 = bitcast %struct.A* %this1 to i32 (...)***, !dbg !61 + store i32 (...)** bitcast (i8** @"\01??_7A@@6B@" to i32 (...)**), i32 (...)*** %0, align 8, !dbg !61 + ret %struct.A* %this1, !dbg !61 +} + +declare void @_purecall() unnamed_addr + +declare void @"\01?g@B@@UEAAXXZ"(%struct.B*) unnamed_addr #4 + +declare void @"\01?f@A@@UEAAXXZ"(%struct.A*) unnamed_addr #4 + +; Function Attrs: uwtable +define internal void @_GLOBAL__sub_I_t.cpp() #0 !dbg !62 { +entry: + call void @"\01??__Ep@@YAXXZ"(), !dbg !64 + ret void +} + +attributes #0 = { uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { nobuiltin "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #2 = { inlinehint nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #3 = { nounwind readnone } +attributes #4 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #5 = { builtin } +attributes #6 = { nounwind } + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!35, !36, !37} +!llvm.ident = !{!38} + +!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 ", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3) +!1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild") +!2 = !{} +!3 = !{!4} +!4 = distinct !DIGlobalVariable(name: "p", linkageName: "\01?p@@3PEAUC@@EA", scope: !0, file: !1, line: 13, type: !5, isLocal: false, isDefinition: true, variable: %struct.C** @"\01?p@@3PEAUC@@EA") +!5 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !6, size: 64, align: 64) +!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "C", file: !1, line: 9, size: 64, align: 64, elements: !7, vtableHolder: !12, identifier: ".?AUC@@") +!7 = !{!8, !30, !34} +!8 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !6, baseType: !9) +!9 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "B", file: !1, line: 5, size: 64, align: 64, elements: !10, vtableHolder: !12, identifier: ".?AUB@@") +!10 = !{!11, !25, !29} +!11 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !9, baseType: !12) +!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !1, line: 1, size: 64, align: 64, elements: !13, vtableHolder: !12, identifier: ".?AUA@@") +!13 = !{!14, !20, !24} +!14 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", scope: !1, file: !1, baseType: !15, size: 64, flags: DIFlagArtificial) +!15 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !16, size: 64) +!16 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: !17, size: 64) +!17 = !DISubroutineType(types: !18) +!18 = !{!19} +!19 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) +!20 = !DISubprogram(name: "f", linkageName: "\01?f@A@@UEAAXXZ", scope: !12, file: !1, line: 2, type: !21, isLocal: false, isDefinition: false, scopeLine: 2, containingType: !12, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped | DIFlagIntroducedVirtual, isOptimized: false) +!21 = !DISubroutineType(types: !22) +!22 = !{null, !23} +!23 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) +!24 = !DISubprogram(name: "g", linkageName: "\01?g@A@@UEAAXXZ", scope: !12, file: !1, line: 3, type: !21, isLocal: false, isDefinition: false, scopeLine: 3, containingType: !12, virtuality: DW_VIRTUALITY_pure_virtual, virtualIndex: 1, flags: DIFlagPrototyped | DIFlagIntroducedVirtual, isOptimized: false) +!25 = !DISubprogram(name: "f", linkageName: "\01?f@B@@UEAAXXZ", scope: !9, file: !1, line: 6, type: !26, isLocal: false, isDefinition: false, scopeLine: 6, containingType: !9, virtuality: DW_VIRTUALITY_pure_virtual, virtualIndex: 0, flags: DIFlagPrototyped, isOptimized: false) +!26 = !DISubroutineType(types: !27) +!27 = !{null, !28} +!28 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) +!29 = !DISubprogram(name: "g", linkageName: "\01?g@B@@UEAAXXZ", scope: !9, file: !1, line: 7, type: !26, isLocal: false, isDefinition: false, scopeLine: 7, containingType: !9, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 1, flags: DIFlagPrototyped, isOptimized: false) +!30 = !DISubprogram(name: "f", linkageName: "\01?f@C@@UEAAXXZ", scope: !6, file: !1, line: 10, type: !31, isLocal: false, isDefinition: false, scopeLine: 10, containingType: !6, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped, isOptimized: false) +!31 = !DISubroutineType(types: !32) +!32 = !{null, !33} +!33 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !6, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer) +!34 = !DISubprogram(name: "g", linkageName: "\01?g@C@@UEAAXXZ", scope: !6, file: !1, line: 11, type: !31, isLocal: false, isDefinition: false, scopeLine: 11, containingType: !6, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 1, flags: DIFlagPrototyped, isOptimized: false) +!35 = !{i32 2, !"CodeView", i32 1} +!36 = !{i32 2, !"Debug Info Version", i32 3} +!37 = !{i32 1, !"PIC Level", i32 2} +!38 = !{!"clang version 3.9.0 "} +!39 = distinct !DISubprogram(name: "??__Ep@@YAXXZ", scope: !1, file: !1, line: 13, type: !40, isLocal: true, isDefinition: true, scopeLine: 13, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2) +!40 = !DISubroutineType(types: !41) +!41 = !{null} +!42 = !DILocation(line: 13, column: 8, scope: !39) +!43 = !DILocation(line: 13, column: 12, scope: !39) +!44 = distinct !DISubprogram(name: "C", linkageName: "\01??0C@@QEAA@XZ", scope: !6, file: !1, line: 9, type: !31, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !45, variables: !2) +!45 = !DISubprogram(name: "C", scope: !6, type: !31, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false) +!46 = !DILocalVariable(name: "this", arg: 1, scope: !44, type: !5, flags: DIFlagArtificial | DIFlagObjectPointer) +!47 = !DIExpression() +!48 = !DILocation(line: 0, scope: !44) +!49 = !DILocation(line: 9, column: 8, scope: !44) +!50 = distinct !DISubprogram(name: "B", linkageName: "\01??0B@@QEAA@XZ", scope: !9, file: !1, line: 5, type: !26, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !51, variables: !2) +!51 = !DISubprogram(name: "B", scope: !9, type: !26, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false) +!52 = !DILocalVariable(name: "this", arg: 1, scope: !50, type: !53, flags: DIFlagArtificial | DIFlagObjectPointer) +!53 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, align: 64) +!54 = !DILocation(line: 0, scope: !50) +!55 = !DILocation(line: 5, column: 8, scope: !50) +!56 = distinct !DISubprogram(name: "A", linkageName: "\01??0A@@QEAA@XZ", scope: !12, file: !1, line: 1, type: !21, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !57, variables: !2) +!57 = !DISubprogram(name: "A", scope: !12, type: !21, isLocal: false, isDefinition: false, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false) +!58 = !DILocalVariable(name: "this", arg: 1, scope: !56, type: !59, flags: DIFlagArtificial | DIFlagObjectPointer) +!59 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64, align: 64) +!60 = !DILocation(line: 0, scope: !56) +!61 = !DILocation(line: 1, column: 8, scope: !56) +!62 = distinct !DISubprogram(linkageName: "_GLOBAL__sub_I_t.cpp", scope: !1, file: !1, type: !63, isLocal: true, isDefinition: true, flags: DIFlagArtificial, isOptimized: false, unit: !0, variables: !2) +!63 = !DISubroutineType(types: !2) +!64 = !DILocation(line: 0, scope: !62) -- 2.50.1