Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 4273 deletions

diff --git a/gnu/llvm/tools/clang/lib/CodeGen/MicrosoftCXXABI.cpp b/gnu/llvm/tools/clang/lib/CodeGen/MicrosoftCXXABI.cpp
deleted file mode 100644
index 5545bc6647e..00000000000
--- a/gnu/llvm/tools/clang/lib/CodeGen/MicrosoftCXXABI.cpp
+++ /dev/null
@@ -1,4273 +0,0 @@
-//===--- MicrosoftCXXABI.cpp - Emit LLVM Code from ASTs for a Module ------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This provides C++ code generation targeting the Microsoft Visual C++ ABI.
-// The class in this file generates structures that follow the Microsoft
-// Visual C++ ABI, which is actually not very well documented at all outside
-// of Microsoft.
-//
-//===----------------------------------------------------------------------===//
-
-#include "CGCXXABI.h"
-#include "CGCleanup.h"
-#include "CGVTables.h"
-#include "CodeGenModule.h"
-#include "CodeGenTypes.h"
-#include "TargetInfo.h"
-#include "clang/CodeGen/ConstantInitBuilder.h"
-#include "clang/AST/Decl.h"
-#include "clang/AST/DeclCXX.h"
-#include "clang/AST/StmtCXX.h"
-#include "clang/AST/VTableBuilder.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/StringSet.h"
-#include "llvm/IR/CallSite.h"
-#include "llvm/IR/Intrinsics.h"
-
-using namespace clang;
-using namespace CodeGen;
-
-namespace {
-
-/// Holds all the vbtable globals for a given class.
-struct VBTableGlobals {
-  const VPtrInfoVector *VBTables;
-  SmallVector<llvm::GlobalVariable *, 2> Globals;
-};
-
-class MicrosoftCXXABI : public CGCXXABI {
-public:
-  MicrosoftCXXABI(CodeGenModule &CGM)
-      : CGCXXABI(CGM), BaseClassDescriptorType(nullptr),
-        ClassHierarchyDescriptorType(nullptr),
-        CompleteObjectLocatorType(nullptr), CatchableTypeType(nullptr),
-        ThrowInfoType(nullptr) {}
-
-  bool HasThisReturn(GlobalDecl GD) const override;
-  bool hasMostDerivedReturn(GlobalDecl GD) const override;
-
-  bool classifyReturnType(CGFunctionInfo &FI) const override;
-
-  RecordArgABI getRecordArgABI(const CXXRecordDecl *RD) const override;
-
-  bool isSRetParameterAfterThis() const override { return true; }
-
-  bool isThisCompleteObject(GlobalDecl GD) const override {
-    // The Microsoft ABI doesn't use separate complete-object vs.
-    // base-object variants of constructors, but it does of destructors.
-    if (isa<CXXDestructorDecl>(GD.getDecl())) {
-      switch (GD.getDtorType()) {
-      case Dtor_Complete:
-      case Dtor_Deleting:
-        return true;
-
-      case Dtor_Base:
-        return false;
-
-      case Dtor_Comdat: llvm_unreachable("emitting dtor comdat as function?");
-      }
-      llvm_unreachable("bad dtor kind");
-    }
-
-    // No other kinds.
-    return false;
-  }
-
-  size_t getSrcArgforCopyCtor(const CXXConstructorDecl *CD,
-                              FunctionArgList &Args) const override {
-    assert(Args.size() >= 2 &&
-           "expected the arglist to have at least two args!");
-    // The 'most_derived' parameter goes second if the ctor is variadic and
-    // has v-bases.
-    if (CD->getParent()->getNumVBases() > 0 &&
-        CD->getType()->castAs<FunctionProtoType>()->isVariadic())
-      return 2;
-    return 1;
-  }
-
-  std::vector<CharUnits> getVBPtrOffsets(const CXXRecordDecl *RD) override {
-    std::vector<CharUnits> VBPtrOffsets;
-    const ASTContext &Context = getContext();
-    const ASTRecordLayout &Layout = Context.getASTRecordLayout(RD);
-
-    const VBTableGlobals &VBGlobals = enumerateVBTables(RD);
-    for (const std::unique_ptr<VPtrInfo> &VBT : *VBGlobals.VBTables) {
-      const ASTRecordLayout &SubobjectLayout =
-          Context.getASTRecordLayout(VBT->IntroducingObject);
-      CharUnits Offs = VBT->NonVirtualOffset;
-      Offs += SubobjectLayout.getVBPtrOffset();
-      if (VBT->getVBaseWithVPtr())
-        Offs += Layout.getVBaseClassOffset(VBT->getVBaseWithVPtr());
-      VBPtrOffsets.push_back(Offs);
-    }
-    llvm::array_pod_sort(VBPtrOffsets.begin(), VBPtrOffsets.end());
-    return VBPtrOffsets;
-  }
-
-  StringRef GetPureVirtualCallName() override { return "_purecall"; }
-  StringRef GetDeletedVirtualCallName() override { return "_purecall"; }
-
-  void emitVirtualObjectDelete(CodeGenFunction &CGF, const CXXDeleteExpr *DE,
-                               Address Ptr, QualType ElementType,
-                               const CXXDestructorDecl *Dtor) override;
-
-  void emitRethrow(CodeGenFunction &CGF, bool isNoReturn) override;
-  void emitThrow(CodeGenFunction &CGF, const CXXThrowExpr *E) override;
-
-  void emitBeginCatch(CodeGenFunction &CGF, const CXXCatchStmt *C) override;
-
-  llvm::GlobalVariable *getMSCompleteObjectLocator(const CXXRecordDecl *RD,
-                                                   const VPtrInfo &Info);
-
-  llvm::Constant *getAddrOfRTTIDescriptor(QualType Ty) override;
-  CatchTypeInfo
-  getAddrOfCXXCatchHandlerType(QualType Ty, QualType CatchHandlerType) override;
-
-  /// MSVC needs an extra flag to indicate a catchall.
-  CatchTypeInfo getCatchAllTypeInfo() override {
-    return CatchTypeInfo{nullptr, 0x40};
-  }
-
-  bool shouldTypeidBeNullChecked(bool IsDeref, QualType SrcRecordTy) override;
-  void EmitBadTypeidCall(CodeGenFunction &CGF) override;
-  llvm::Value *EmitTypeid(CodeGenFunction &CGF, QualType SrcRecordTy,
-                          Address ThisPtr,
-                          llvm::Type *StdTypeInfoPtrTy) override;
-
-  bool shouldDynamicCastCallBeNullChecked(bool SrcIsPtr,
-                                          QualType SrcRecordTy) override;
-
-  llvm::Value *EmitDynamicCastCall(CodeGenFunction &CGF, Address Value,
-                                   QualType SrcRecordTy, QualType DestTy,
-                                   QualType DestRecordTy,
-                                   llvm::BasicBlock *CastEnd) override;
-
-  llvm::Value *EmitDynamicCastToVoid(CodeGenFunction &CGF, Address Value,
-                                     QualType SrcRecordTy,
-                                     QualType DestTy) override;
-
-  bool EmitBadCastCall(CodeGenFunction &CGF) override;
-  bool canSpeculativelyEmitVTable(const CXXRecordDecl *RD) const override {
-    return false;
-  }
-
-  llvm::Value *
-  GetVirtualBaseClassOffset(CodeGenFunction &CGF, Address This,
-                            const CXXRecordDecl *ClassDecl,
-                            const CXXRecordDecl *BaseClassDecl) override;
-
-  llvm::BasicBlock *
-  EmitCtorCompleteObjectHandler(CodeGenFunction &CGF,
-                                const CXXRecordDecl *RD) override;
-
-  llvm::BasicBlock *
-  EmitDtorCompleteObjectHandler(CodeGenFunction &CGF);
-
-  void initializeHiddenVirtualInheritanceMembers(CodeGenFunction &CGF,
-                                              const CXXRecordDecl *RD) override;
-
-  void EmitCXXConstructors(const CXXConstructorDecl *D) override;
-
-  // Background on MSVC destructors
-  // ==============================
-  //
-  // Both Itanium and MSVC ABIs have destructor variants.  The variant names
-  // roughly correspond in the following way:
-  //   Itanium       Microsoft
-  //   Base       -> no name, just ~Class
-  //   Complete   -> vbase destructor
-  //   Deleting   -> scalar deleting destructor
-  //                 vector deleting destructor
-  //
-  // The base and complete destructors are the same as in Itanium, although the
-  // complete destructor does not accept a VTT parameter when there are virtual
-  // bases.  A separate mechanism involving vtordisps is used to ensure that
-  // virtual methods of destroyed subobjects are not called.
-  //
-  // The deleting destructors accept an i32 bitfield as a second parameter.  Bit
-  // 1 indicates if the memory should be deleted.  Bit 2 indicates if the this
-  // pointer points to an array.  The scalar deleting destructor assumes that
-  // bit 2 is zero, and therefore does not contain a loop.
-  //
-  // For virtual destructors, only one entry is reserved in the vftable, and it
-  // always points to the vector deleting destructor.  The vector deleting
-  // destructor is the most general, so it can be used to destroy objects in
-  // place, delete single heap objects, or delete arrays.
-  //
-  // A TU defining a non-inline destructor is only guaranteed to emit a base
-  // destructor, and all of the other variants are emitted on an as-needed basis
-  // in COMDATs.  Because a non-base destructor can be emitted in a TU that
-  // lacks a definition for the destructor, non-base destructors must always
-  // delegate to or alias the base destructor.
-
-  AddedStructorArgs
-  buildStructorSignature(const CXXMethodDecl *MD, StructorType T,
-                         SmallVectorImpl<CanQualType> &ArgTys) override;
-
-  /// Non-base dtors should be emitted as delegating thunks in this ABI.
-  bool useThunkForDtorVariant(const CXXDestructorDecl *Dtor,
-                              CXXDtorType DT) const override {
-    return DT != Dtor_Base;
-  }
-
-  void setCXXDestructorDLLStorage(llvm::GlobalValue *GV,
-                                  const CXXDestructorDecl *Dtor,
-                                  CXXDtorType DT) const override;
-
-  llvm::GlobalValue::LinkageTypes
-  getCXXDestructorLinkage(GVALinkage Linkage, const CXXDestructorDecl *Dtor,
-                          CXXDtorType DT) const override;
-
-  void EmitCXXDestructors(const CXXDestructorDecl *D) override;
-
-  const CXXRecordDecl *
-  getThisArgumentTypeForMethod(const CXXMethodDecl *MD) override {
-    if (MD->isVirtual() && !isa<CXXDestructorDecl>(MD)) {
-      MethodVFTableLocation ML =
-          CGM.getMicrosoftVTableContext().getMethodVFTableLocation(MD);
-      // The vbases might be ordered differently in the final overrider object
-      // and the complete object, so the "this" argument may sometimes point to
-      // memory that has no particular type (e.g. past the complete object).
-      // In this case, we just use a generic pointer type.
-      // FIXME: might want to have a more precise type in the non-virtual
-      // multiple inheritance case.
-      if (ML.VBase || !ML.VFPtrOffset.isZero())
-        return nullptr;
-    }
-    return MD->getParent();
-  }
-
-  Address
-  adjustThisArgumentForVirtualFunctionCall(CodeGenFunction &CGF, GlobalDecl GD,
-                                           Address This,
-                                           bool VirtualCall) override;
-
-  void addImplicitStructorParams(CodeGenFunction &CGF, QualType &ResTy,
-                                 FunctionArgList &Params) override;
-
-  void EmitInstanceFunctionProlog(CodeGenFunction &CGF) override;
-
-  AddedStructorArgs
-  addImplicitConstructorArgs(CodeGenFunction &CGF, const CXXConstructorDecl *D,
-                             CXXCtorType Type, bool ForVirtualBase,
-                             bool Delegating, CallArgList &Args) override;
-
-  void EmitDestructorCall(CodeGenFunction &CGF, const CXXDestructorDecl *DD,
-                          CXXDtorType Type, bool ForVirtualBase,
-                          bool Delegating, Address This) override;
-
-  void emitVTableTypeMetadata(const VPtrInfo &Info, const CXXRecordDecl *RD,
-                              llvm::GlobalVariable *VTable);
-
-  void emitVTableDefinitions(CodeGenVTables &CGVT,
-                             const CXXRecordDecl *RD) override;
-
-  bool isVirtualOffsetNeededForVTableField(CodeGenFunction &CGF,
-                                           CodeGenFunction::VPtr Vptr) override;
-
-  /// Don't initialize vptrs if dynamic class
-  /// is marked with with the 'novtable' attribute.
-  bool doStructorsInitializeVPtrs(const CXXRecordDecl *VTableClass) override {
-    return !VTableClass->hasAttr<MSNoVTableAttr>();
-  }
-
-  llvm::Constant *
-  getVTableAddressPoint(BaseSubobject Base,
-                        const CXXRecordDecl *VTableClass) override;
-
-  llvm::Value *getVTableAddressPointInStructor(
-      CodeGenFunction &CGF, const CXXRecordDecl *VTableClass,
-      BaseSubobject Base, const CXXRecordDecl *NearestVBase) override;
-
-  llvm::Constant *
-  getVTableAddressPointForConstExpr(BaseSubobject Base,
-                                    const CXXRecordDecl *VTableClass) override;
-
-  llvm::GlobalVariable *getAddrOfVTable(const CXXRecordDecl *RD,
-                                        CharUnits VPtrOffset) override;
-
-  CGCallee getVirtualFunctionPointer(CodeGenFunction &CGF, GlobalDecl GD,
-                                     Address This, llvm::Type *Ty,
-                                     SourceLocation Loc) override;
-
-  llvm::Value *EmitVirtualDestructorCall(CodeGenFunction &CGF,
-                                         const CXXDestructorDecl *Dtor,
-                                         CXXDtorType DtorType,
-                                         Address This,
-                                         const CXXMemberCallExpr *CE) override;
-
-  void adjustCallArgsForDestructorThunk(CodeGenFunction &CGF, GlobalDecl GD,
-                                        CallArgList &CallArgs) override {
-    assert(GD.getDtorType() == Dtor_Deleting &&
-           "Only deleting destructor thunks are available in this ABI");
-    CallArgs.add(RValue::get(getStructorImplicitParamValue(CGF)),
-                 getContext().IntTy);
-  }
-
-  void emitVirtualInheritanceTables(const CXXRecordDecl *RD) override;
-
-  llvm::GlobalVariable *
-  getAddrOfVBTable(const VPtrInfo &VBT, const CXXRecordDecl *RD,
-                   llvm::GlobalVariable::LinkageTypes Linkage);
-
-  llvm::GlobalVariable *
-  getAddrOfVirtualDisplacementMap(const CXXRecordDecl *SrcRD,
-                                  const CXXRecordDecl *DstRD) {
-    SmallString<256> OutName;
-    llvm::raw_svector_ostream Out(OutName);
-    getMangleContext().mangleCXXVirtualDisplacementMap(SrcRD, DstRD, Out);
-    StringRef MangledName = OutName.str();
-
-    if (auto *VDispMap = CGM.getModule().getNamedGlobal(MangledName))
-      return VDispMap;
-
-    MicrosoftVTableContext &VTContext = CGM.getMicrosoftVTableContext();
-    unsigned NumEntries = 1 + SrcRD->getNumVBases();
-    SmallVector<llvm::Constant *, 4> Map(NumEntries,
-                                         llvm::UndefValue::get(CGM.IntTy));
-    Map[0] = llvm::ConstantInt::get(CGM.IntTy, 0);
-    bool AnyDifferent = false;
-    for (const auto &I : SrcRD->vbases()) {
-      const CXXRecordDecl *VBase = I.getType()->getAsCXXRecordDecl();
-      if (!DstRD->isVirtuallyDerivedFrom(VBase))
-        continue;
-
-      unsigned SrcVBIndex = VTContext.getVBTableIndex(SrcRD, VBase);
-      unsigned DstVBIndex = VTContext.getVBTableIndex(DstRD, VBase);
-      Map[SrcVBIndex] = llvm::ConstantInt::get(CGM.IntTy, DstVBIndex * 4);
-      AnyDifferent |= SrcVBIndex != DstVBIndex;
-    }
-    // This map would be useless, don't use it.
-    if (!AnyDifferent)
-      return nullptr;
-
-    llvm::ArrayType *VDispMapTy = llvm::ArrayType::get(CGM.IntTy, Map.size());
-    llvm::Constant *Init = llvm::ConstantArray::get(VDispMapTy, Map);
-    llvm::GlobalValue::LinkageTypes Linkage =
-        SrcRD->isExternallyVisible() && DstRD->isExternallyVisible()
-            ? llvm::GlobalValue::LinkOnceODRLinkage
-            : llvm::GlobalValue::InternalLinkage;
-    auto *VDispMap = new llvm::GlobalVariable(
-        CGM.getModule(), VDispMapTy, /*Constant=*/true, Linkage,
-        /*Initializer=*/Init, MangledName);
-    return VDispMap;
-  }
-
-  void emitVBTableDefinition(const VPtrInfo &VBT, const CXXRecordDecl *RD,
-                             llvm::GlobalVariable *GV) const;
-
-  void setThunkLinkage(llvm::Function *Thunk, bool ForVTable,
-                       GlobalDecl GD, bool ReturnAdjustment) override {
-    GVALinkage Linkage =
-        getContext().GetGVALinkageForFunction(cast<FunctionDecl>(GD.getDecl()));
-
-    if (Linkage == GVA_Internal)
-      Thunk->setLinkage(llvm::GlobalValue::InternalLinkage);
-    else if (ReturnAdjustment)
-      Thunk->setLinkage(llvm::GlobalValue::WeakODRLinkage);
-    else
-      Thunk->setLinkage(llvm::GlobalValue::LinkOnceODRLinkage);
-  }
-
-  bool exportThunk() override { return false; }
-
-  llvm::Value *performThisAdjustment(CodeGenFunction &CGF, Address This,
-                                     const ThisAdjustment &TA) override;
-
-  llvm::Value *performReturnAdjustment(CodeGenFunction &CGF, Address Ret,
-                                       const ReturnAdjustment &RA) override;
-
-  void EmitThreadLocalInitFuncs(
-      CodeGenModule &CGM, ArrayRef<const VarDecl *> CXXThreadLocals,
-      ArrayRef<llvm::Function *> CXXThreadLocalInits,
-      ArrayRef<const VarDecl *> CXXThreadLocalInitVars) override;
-
-  bool usesThreadWrapperFunction() const override { return false; }
-  LValue EmitThreadLocalVarDeclLValue(CodeGenFunction &CGF, const VarDecl *VD,
-                                      QualType LValType) override;
-
-  void EmitGuardedInit(CodeGenFunction &CGF, const VarDecl &D,
-                       llvm::GlobalVariable *DeclPtr,
-                       bool PerformInit) override;
-  void registerGlobalDtor(CodeGenFunction &CGF, const VarDecl &D,
-                          llvm::Constant *Dtor, llvm::Constant *Addr) override;
-
-  // ==== Notes on array cookies =========
-  //
-  // MSVC seems to only use cookies when the class has a destructor; a
-  // two-argument usual array deallocation function isn't sufficient.
-  //
-  // For example, this code prints "100" and "1":
-  //   struct A {
-  //     char x;
-  //     void *operator new[](size_t sz) {
-  //       printf("%u\n", sz);
-  //       return malloc(sz);
-  //     }
-  //     void operator delete[](void *p, size_t sz) {
-  //       printf("%u\n", sz);
-  //       free(p);
-  //     }
-  //   };
-  //   int main() {
-  //     A *p = new A[100];
-  //     delete[] p;
-  //   }
-  // Whereas it prints "104" and "104" if you give A a destructor.
-
-  bool requiresArrayCookie(const CXXDeleteExpr *expr,
-                           QualType elementType) override;
-  bool requiresArrayCookie(const CXXNewExpr *expr) override;
-  CharUnits getArrayCookieSizeImpl(QualType type) override;
-  Address InitializeArrayCookie(CodeGenFunction &CGF,
-                                Address NewPtr,
-                                llvm::Value *NumElements,
-                                const CXXNewExpr *expr,
-                                QualType ElementType) override;
-  llvm::Value *readArrayCookieImpl(CodeGenFunction &CGF,
-                                   Address allocPtr,
-                                   CharUnits cookieSize) override;
-
-  friend struct MSRTTIBuilder;
-
-  bool isImageRelative() const {
-    return CGM.getTarget().getPointerWidth(/*AddressSpace=*/0) == 64;
-  }
-
-  // 5 routines for constructing the llvm types for MS RTTI structs.
-  llvm::StructType *getTypeDescriptorType(StringRef TypeInfoString) {
-    llvm::SmallString<32> TDTypeName("rtti.TypeDescriptor");
-    TDTypeName += llvm::utostr(TypeInfoString.size());
-    llvm::StructType *&TypeDescriptorType =
-        TypeDescriptorTypeMap[TypeInfoString.size()];
-    if (TypeDescriptorType)
-      return TypeDescriptorType;
-    llvm::Type *FieldTypes[] = {
-        CGM.Int8PtrPtrTy,
-        CGM.Int8PtrTy,
-        llvm::ArrayType::get(CGM.Int8Ty, TypeInfoString.size() + 1)};
-    TypeDescriptorType =
-        llvm::StructType::create(CGM.getLLVMContext(), FieldTypes, TDTypeName);
-    return TypeDescriptorType;
-  }
-
-  llvm::Type *getImageRelativeType(llvm::Type *PtrType) {
-    if (!isImageRelative())
-      return PtrType;
-    return CGM.IntTy;
-  }
-
-  llvm::StructType *getBaseClassDescriptorType() {
-    if (BaseClassDescriptorType)
-      return BaseClassDescriptorType;
-    llvm::Type *FieldTypes[] = {
-        getImageRelativeType(CGM.Int8PtrTy),
-        CGM.IntTy,
-        CGM.IntTy,
-        CGM.IntTy,
-        CGM.IntTy,
-        CGM.IntTy,
-        getImageRelativeType(getClassHierarchyDescriptorType()->getPointerTo()),
-    };
-    BaseClassDescriptorType = llvm::StructType::create(
-        CGM.getLLVMContext(), FieldTypes, "rtti.BaseClassDescriptor");
-    return BaseClassDescriptorType;
-  }
-
-  llvm::StructType *getClassHierarchyDescriptorType() {
-    if (ClassHierarchyDescriptorType)
-      return ClassHierarchyDescriptorType;
-    // Forward-declare RTTIClassHierarchyDescriptor to break a cycle.
-    ClassHierarchyDescriptorType = llvm::StructType::create(
-        CGM.getLLVMContext(), "rtti.ClassHierarchyDescriptor");
-    llvm::Type *FieldTypes[] = {
-        CGM.IntTy,
-        CGM.IntTy,
-        CGM.IntTy,
-        getImageRelativeType(
-            getBaseClassDescriptorType()->getPointerTo()->getPointerTo()),
-    };
-    ClassHierarchyDescriptorType->setBody(FieldTypes);
-    return ClassHierarchyDescriptorType;
-  }
-
-  llvm::StructType *getCompleteObjectLocatorType() {
-    if (CompleteObjectLocatorType)
-      return CompleteObjectLocatorType;
-    CompleteObjectLocatorType = llvm::StructType::create(
-        CGM.getLLVMContext(), "rtti.CompleteObjectLocator");
-    llvm::Type *FieldTypes[] = {
-        CGM.IntTy,
-        CGM.IntTy,
-        CGM.IntTy,
-        getImageRelativeType(CGM.Int8PtrTy),
-        getImageRelativeType(getClassHierarchyDescriptorType()->getPointerTo()),
-        getImageRelativeType(CompleteObjectLocatorType),
-    };
-    llvm::ArrayRef<llvm::Type *> FieldTypesRef(FieldTypes);
-    if (!isImageRelative())
-      FieldTypesRef = FieldTypesRef.drop_back();
-    CompleteObjectLocatorType->setBody(FieldTypesRef);
-    return CompleteObjectLocatorType;
-  }
-
-  llvm::GlobalVariable *getImageBase() {
-    StringRef Name = "__ImageBase";
-    if (llvm::GlobalVariable *GV = CGM.getModule().getNamedGlobal(Name))
-      return GV;
-
-    auto *GV = new llvm::GlobalVariable(CGM.getModule(), CGM.Int8Ty,
-                                        /*isConstant=*/true,
-                                        llvm::GlobalValue::ExternalLinkage,
-                                        /*Initializer=*/nullptr, Name);
-    CGM.setDSOLocal(GV);
-    return GV;
-  }
-
-  llvm::Constant *getImageRelativeConstant(llvm::Constant *PtrVal) {
-    if (!isImageRelative())
-      return PtrVal;
-
-    if (PtrVal->isNullValue())
-      return llvm::Constant::getNullValue(CGM.IntTy);
-
-    llvm::Constant *ImageBaseAsInt =
-        llvm::ConstantExpr::getPtrToInt(getImageBase(), CGM.IntPtrTy);
-    llvm::Constant *PtrValAsInt =
-        llvm::ConstantExpr::getPtrToInt(PtrVal, CGM.IntPtrTy);
-    llvm::Constant *Diff =
-        llvm::ConstantExpr::getSub(PtrValAsInt, ImageBaseAsInt,
-                                   /*HasNUW=*/true, /*HasNSW=*/true);
-    return llvm::ConstantExpr::getTrunc(Diff, CGM.IntTy);
-  }
-
-private:
-  MicrosoftMangleContext &getMangleContext() {
-    return cast<MicrosoftMangleContext>(CodeGen::CGCXXABI::getMangleContext());
-  }
-
-  llvm::Constant *getZeroInt() {
-    return llvm::ConstantInt::get(CGM.IntTy, 0);
-  }
-
-  llvm::Constant *getAllOnesInt() {
-    return  llvm::Constant::getAllOnesValue(CGM.IntTy);
-  }
-
-  CharUnits getVirtualFunctionPrologueThisAdjustment(GlobalDecl GD) override;
-
-  void
-  GetNullMemberPointerFields(const MemberPointerType *MPT,
-                             llvm::SmallVectorImpl<llvm::Constant *> &fields);
-
-  /// Shared code for virtual base adjustment.  Returns the offset from
-  /// the vbptr to the virtual base.  Optionally returns the address of the
-  /// vbptr itself.
-  llvm::Value *GetVBaseOffsetFromVBPtr(CodeGenFunction &CGF,
-                                       Address Base,
-                                       llvm::Value *VBPtrOffset,
-                                       llvm::Value *VBTableOffset,
-                                       llvm::Value **VBPtr = nullptr);
-
-  llvm::Value *GetVBaseOffsetFromVBPtr(CodeGenFunction &CGF,
-                                       Address Base,
-                                       int32_t VBPtrOffset,
-                                       int32_t VBTableOffset,
-                                       llvm::Value **VBPtr = nullptr) {
-    assert(VBTableOffset % 4 == 0 && "should be byte offset into table of i32s");
-    llvm::Value *VBPOffset = llvm::ConstantInt::get(CGM.IntTy, VBPtrOffset),
-                *VBTOffset = llvm::ConstantInt::get(CGM.IntTy, VBTableOffset);
-    return GetVBaseOffsetFromVBPtr(CGF, Base, VBPOffset, VBTOffset, VBPtr);
-  }
-
-  std::tuple<Address, llvm::Value *, const CXXRecordDecl *>
-  performBaseAdjustment(CodeGenFunction &CGF, Address Value,
-                        QualType SrcRecordTy);
-
-  /// Performs a full virtual base adjustment.  Used to dereference
-  /// pointers to members of virtual bases.
-  llvm::Value *AdjustVirtualBase(CodeGenFunction &CGF, const Expr *E,
-                                 const CXXRecordDecl *RD, Address Base,
-                                 llvm::Value *VirtualBaseAdjustmentOffset,
-                                 llvm::Value *VBPtrOffset /* optional */);
-
-  /// Emits a full member pointer with the fields common to data and
-  /// function member pointers.
-  llvm::Constant *EmitFullMemberPointer(llvm::Constant *FirstField,
-                                        bool IsMemberFunction,
-                                        const CXXRecordDecl *RD,
-                                        CharUnits NonVirtualBaseAdjustment,
-                                        unsigned VBTableIndex);
-
-  bool MemberPointerConstantIsNull(const MemberPointerType *MPT,
-                                   llvm::Constant *MP);
-
-  /// - Initialize all vbptrs of 'this' with RD as the complete type.
-  void EmitVBPtrStores(CodeGenFunction &CGF, const CXXRecordDecl *RD);
-
-  /// Caching wrapper around VBTableBuilder::enumerateVBTables().
-  const VBTableGlobals &enumerateVBTables(const CXXRecordDecl *RD);
-
-  /// Generate a thunk for calling a virtual member function MD.
-  llvm::Function *EmitVirtualMemPtrThunk(const CXXMethodDecl *MD,
-                                         const MethodVFTableLocation &ML);
-
-public:
-  llvm::Type *ConvertMemberPointerType(const MemberPointerType *MPT) override;
-
-  bool isZeroInitializable(const MemberPointerType *MPT) override;
-
-  bool isMemberPointerConvertible(const MemberPointerType *MPT) const override {
-    const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl();
-    return RD->hasAttr<MSInheritanceAttr>();
-  }
-
-  llvm::Constant *EmitNullMemberPointer(const MemberPointerType *MPT) override;
-
-  llvm::Constant *EmitMemberDataPointer(const MemberPointerType *MPT,
-                                        CharUnits offset) override;
-  llvm::Constant *EmitMemberFunctionPointer(const CXXMethodDecl *MD) override;
-  llvm::Constant *EmitMemberPointer(const APValue &MP, QualType MPT) override;
-
-  llvm::Value *EmitMemberPointerComparison(CodeGenFunction &CGF,
-                                           llvm::Value *L,
-                                           llvm::Value *R,
-                                           const MemberPointerType *MPT,
-                                           bool Inequality) override;
-
-  llvm::Value *EmitMemberPointerIsNotNull(CodeGenFunction &CGF,
-                                          llvm::Value *MemPtr,
-                                          const MemberPointerType *MPT) override;
-
-  llvm::Value *
-  EmitMemberDataPointerAddress(CodeGenFunction &CGF, const Expr *E,
-                               Address Base, llvm::Value *MemPtr,
-                               const MemberPointerType *MPT) override;
-
-  llvm::Value *EmitNonNullMemberPointerConversion(
-      const MemberPointerType *SrcTy, const MemberPointerType *DstTy,
-      CastKind CK, CastExpr::path_const_iterator PathBegin,
-      CastExpr::path_const_iterator PathEnd, llvm::Value *Src,
-      CGBuilderTy &Builder);
-
-  llvm::Value *EmitMemberPointerConversion(CodeGenFunction &CGF,
-                                           const CastExpr *E,
-                                           llvm::Value *Src) override;
-
-  llvm::Constant *EmitMemberPointerConversion(const CastExpr *E,
-                                              llvm::Constant *Src) override;
-
-  llvm::Constant *EmitMemberPointerConversion(
-      const MemberPointerType *SrcTy, const MemberPointerType *DstTy,
-      CastKind CK, CastExpr::path_const_iterator PathBegin,
-      CastExpr::path_const_iterator PathEnd, llvm::Constant *Src);
-
-  CGCallee
-  EmitLoadOfMemberFunctionPointer(CodeGenFunction &CGF, const Expr *E,
-                                  Address This, llvm::Value *&ThisPtrForCall,
-                                  llvm::Value *MemPtr,
-                                  const MemberPointerType *MPT) override;
-
-  void emitCXXStructor(const CXXMethodDecl *MD, StructorType Type) override;
-
-  llvm::StructType *getCatchableTypeType() {
-    if (CatchableTypeType)
-      return CatchableTypeType;
-    llvm::Type *FieldTypes[] = {
-        CGM.IntTy,                           // Flags
-        getImageRelativeType(CGM.Int8PtrTy), // TypeDescriptor
-        CGM.IntTy,                           // NonVirtualAdjustment
-        CGM.IntTy,                           // OffsetToVBPtr
-        CGM.IntTy,                           // VBTableIndex
-        CGM.IntTy,                           // Size
-        getImageRelativeType(CGM.Int8PtrTy)  // CopyCtor
-    };
-    CatchableTypeType = llvm::StructType::create(
-        CGM.getLLVMContext(), FieldTypes, "eh.CatchableType");
-    return CatchableTypeType;
-  }
-
-  llvm::StructType *getCatchableTypeArrayType(uint32_t NumEntries) {
-    llvm::StructType *&CatchableTypeArrayType =
-        CatchableTypeArrayTypeMap[NumEntries];
-    if (CatchableTypeArrayType)
-      return CatchableTypeArrayType;
-
-    llvm::SmallString<23> CTATypeName("eh.CatchableTypeArray.");
-    CTATypeName += llvm::utostr(NumEntries);
-    llvm::Type *CTType =
-        getImageRelativeType(getCatchableTypeType()->getPointerTo());
-    llvm::Type *FieldTypes[] = {
-        CGM.IntTy,                               // NumEntries
-        llvm::ArrayType::get(CTType, NumEntries) // CatchableTypes
-    };
-    CatchableTypeArrayType =
-        llvm::StructType::create(CGM.getLLVMContext(), FieldTypes, CTATypeName);
-    return CatchableTypeArrayType;
-  }
-
-  llvm::StructType *getThrowInfoType() {
-    if (ThrowInfoType)
-      return ThrowInfoType;
-    llvm::Type *FieldTypes[] = {
-        CGM.IntTy,                           // Flags
-        getImageRelativeType(CGM.Int8PtrTy), // CleanupFn
-        getImageRelativeType(CGM.Int8PtrTy), // ForwardCompat
-        getImageRelativeType(CGM.Int8PtrTy)  // CatchableTypeArray
-    };
-    ThrowInfoType = llvm::StructType::create(CGM.getLLVMContext(), FieldTypes,
-                                             "eh.ThrowInfo");
-    return ThrowInfoType;
-  }
-
-  llvm::Constant *getThrowFn() {
-    // _CxxThrowException is passed an exception object and a ThrowInfo object
-    // which describes the exception.
-    llvm::Type *Args[] = {CGM.Int8PtrTy, getThrowInfoType()->getPointerTo()};
-    llvm::FunctionType *FTy =
-        llvm::FunctionType::get(CGM.VoidTy, Args, /*IsVarArgs=*/false);
-    auto *Fn = cast<llvm::Function>(
-        CGM.CreateRuntimeFunction(FTy, "_CxxThrowException"));
-    // _CxxThrowException is stdcall on 32-bit x86 platforms.
-    if (CGM.getTarget().getTriple().getArch() == llvm::Triple::x86)
-      Fn->setCallingConv(llvm::CallingConv::X86_StdCall);
-    return Fn;
-  }
-
-  llvm::Function *getAddrOfCXXCtorClosure(const CXXConstructorDecl *CD,
-                                          CXXCtorType CT);
-
-  llvm::Constant *getCatchableType(QualType T,
-                                   uint32_t NVOffset = 0,
-                                   int32_t VBPtrOffset = -1,
-                                   uint32_t VBIndex = 0);
-
-  llvm::GlobalVariable *getCatchableTypeArray(QualType T);
-
-  llvm::GlobalVariable *getThrowInfo(QualType T) override;
-
-  std::pair<llvm::Value *, const CXXRecordDecl *>
-  LoadVTablePtr(CodeGenFunction &CGF, Address This,
-                const CXXRecordDecl *RD) override;
-
-private:
-  typedef std::pair<const CXXRecordDecl *, CharUnits> VFTableIdTy;
-  typedef llvm::DenseMap<VFTableIdTy, llvm::GlobalVariable *> VTablesMapTy;
-  typedef llvm::DenseMap<VFTableIdTy, llvm::GlobalValue *> VFTablesMapTy;
-  /// All the vftables that have been referenced.
-  VFTablesMapTy VFTablesMap;
-  VTablesMapTy VTablesMap;
-
-  /// This set holds the record decls we've deferred vtable emission for.
-  llvm::SmallPtrSet<const CXXRecordDecl *, 4> DeferredVFTables;
-
-
-  /// All the vbtables which have been referenced.
-  llvm::DenseMap<const CXXRecordDecl *, VBTableGlobals> VBTablesMap;
-
-  /// Info on the global variable used to guard initialization of static locals.
-  /// The BitIndex field is only used for externally invisible declarations.
-  struct GuardInfo {
-    GuardInfo() : Guard(nullptr), BitIndex(0) {}
-    llvm::GlobalVariable *Guard;
-    unsigned BitIndex;
-  };
-
-  /// Map from DeclContext to the current guard variable.  We assume that the
-  /// AST is visited in source code order.
-  llvm::DenseMap<const DeclContext *, GuardInfo> GuardVariableMap;
-  llvm::DenseMap<const DeclContext *, GuardInfo> ThreadLocalGuardVariableMap;
-  llvm::DenseMap<const DeclContext *, unsigned> ThreadSafeGuardNumMap;
-
-  llvm::DenseMap<size_t, llvm::StructType *> TypeDescriptorTypeMap;
-  llvm::StructType *BaseClassDescriptorType;
-  llvm::StructType *ClassHierarchyDescriptorType;
-  llvm::StructType *CompleteObjectLocatorType;
-
-  llvm::DenseMap<QualType, llvm::GlobalVariable *> CatchableTypeArrays;
-
-  llvm::StructType *CatchableTypeType;
-  llvm::DenseMap<uint32_t, llvm::StructType *> CatchableTypeArrayTypeMap;
-  llvm::StructType *ThrowInfoType;
-};
-
-}
-
-CGCXXABI::RecordArgABI
-MicrosoftCXXABI::getRecordArgABI(const CXXRecordDecl *RD) const {
-  switch (CGM.getTarget().getTriple().getArch()) {
-  default:
-    // FIXME: Implement for other architectures.
-    return RAA_Default;
-
-  case llvm::Triple::thumb:
-    // Use the simple Itanium rules for now.
-    // FIXME: This is incompatible with MSVC for arguments with a dtor and no
-    // copy ctor.
-    return !canCopyArgument(RD) ? RAA_Indirect : RAA_Default;
-
-  case llvm::Triple::x86:
-    // All record arguments are passed in memory on x86.  Decide whether to
-    // construct the object directly in argument memory, or to construct the
-    // argument elsewhere and copy the bytes during the call.
-
-    // If C++ prohibits us from making a copy, construct the arguments directly
-    // into argument memory.
-    if (!canCopyArgument(RD))
-      return RAA_DirectInMemory;
-
-    // Otherwise, construct the argument into a temporary and copy the bytes
-    // into the outgoing argument memory.
-    return RAA_Default;
-
-  case llvm::Triple::x86_64:
-  case llvm::Triple::aarch64:
-    return !canCopyArgument(RD) ? RAA_Indirect : RAA_Default;
-  }
-
-  llvm_unreachable("invalid enum");
-}
-
-void MicrosoftCXXABI::emitVirtualObjectDelete(CodeGenFunction &CGF,
-                                              const CXXDeleteExpr *DE,
-                                              Address Ptr,
-                                              QualType ElementType,
-                                              const CXXDestructorDecl *Dtor) {
-  // FIXME: Provide a source location here even though there's no
-  // CXXMemberCallExpr for dtor call.
-  bool UseGlobalDelete = DE->isGlobalDelete();
-  CXXDtorType DtorType = UseGlobalDelete ? Dtor_Complete : Dtor_Deleting;
-  llvm::Value *MDThis =
-      EmitVirtualDestructorCall(CGF, Dtor, DtorType, Ptr, /*CE=*/nullptr);
-  if (UseGlobalDelete)
-    CGF.EmitDeleteCall(DE->getOperatorDelete(), MDThis, ElementType);
-}
-
-void MicrosoftCXXABI::emitRethrow(CodeGenFunction &CGF, bool isNoReturn) {
-  llvm::Value *Args[] = {
-      llvm::ConstantPointerNull::get(CGM.Int8PtrTy),
-      llvm::ConstantPointerNull::get(getThrowInfoType()->getPointerTo())};
-  auto *Fn = getThrowFn();
-  if (isNoReturn)
-    CGF.EmitNoreturnRuntimeCallOrInvoke(Fn, Args);
-  else
-    CGF.EmitRuntimeCallOrInvoke(Fn, Args);
-}
-
-void MicrosoftCXXABI::emitBeginCatch(CodeGenFunction &CGF,
-                                     const CXXCatchStmt *S) {
-  // In the MS ABI, the runtime handles the copy, and the catch handler is
-  // responsible for destruction.
-  VarDecl *CatchParam = S->getExceptionDecl();
-  llvm::BasicBlock *CatchPadBB = CGF.Builder.GetInsertBlock();
-  llvm::CatchPadInst *CPI =
-      cast<llvm::CatchPadInst>(CatchPadBB->getFirstNonPHI());
-  CGF.CurrentFuncletPad = CPI;
-
-  // If this is a catch-all or the catch parameter is unnamed, we don't need to
-  // emit an alloca to the object.
-  if (!CatchParam || !CatchParam->getDeclName()) {
-    CGF.EHStack.pushCleanup<CatchRetScope>(NormalCleanup, CPI);
-    return;
-  }
-
-  CodeGenFunction::AutoVarEmission var = CGF.EmitAutoVarAlloca(*CatchParam);
-  CPI->setArgOperand(2, var.getObjectAddress(CGF).getPointer());
-  CGF.EHStack.pushCleanup<CatchRetScope>(NormalCleanup, CPI);
-  CGF.EmitAutoVarCleanups(var);
-}
-
-/// We need to perform a generic polymorphic operation (like a typeid
-/// or a cast), which requires an object with a vfptr.  Adjust the
-/// address to point to an object with a vfptr.
-std::tuple<Address, llvm::Value *, const CXXRecordDecl *>
-MicrosoftCXXABI::performBaseAdjustment(CodeGenFunction &CGF, Address Value,
-                                       QualType SrcRecordTy) {
-  Value = CGF.Builder.CreateBitCast(Value, CGF.Int8PtrTy);
-  const CXXRecordDecl *SrcDecl = SrcRecordTy->getAsCXXRecordDecl();
-  const ASTContext &Context = getContext();
-
-  // If the class itself has a vfptr, great.  This check implicitly
-  // covers non-virtual base subobjects: a class with its own virtual
-  // functions would be a candidate to be a primary base.
-  if (Context.getASTRecordLayout(SrcDecl).hasExtendableVFPtr())
-    return std::make_tuple(Value, llvm::ConstantInt::get(CGF.Int32Ty, 0),
-                           SrcDecl);
-
-  // Okay, one of the vbases must have a vfptr, or else this isn't
-  // actually a polymorphic class.
-  const CXXRecordDecl *PolymorphicBase = nullptr;
-  for (auto &Base : SrcDecl->vbases()) {
-    const CXXRecordDecl *BaseDecl = Base.getType()->getAsCXXRecordDecl();
-    if (Context.getASTRecordLayout(BaseDecl).hasExtendableVFPtr()) {
-      PolymorphicBase = BaseDecl;
-      break;
-    }
-  }
-  assert(PolymorphicBase && "polymorphic class has no apparent vfptr?");
-
-  llvm::Value *Offset =
-    GetVirtualBaseClassOffset(CGF, Value, SrcDecl, PolymorphicBase);
-  llvm::Value *Ptr = CGF.Builder.CreateInBoundsGEP(Value.getPointer(), Offset);
-  CharUnits VBaseAlign =
-    CGF.CGM.getVBaseAlignment(Value.getAlignment(), SrcDecl, PolymorphicBase);
-  return std::make_tuple(Address(Ptr, VBaseAlign), Offset, PolymorphicBase);
-}
-
-bool MicrosoftCXXABI::shouldTypeidBeNullChecked(bool IsDeref,
-                                                QualType SrcRecordTy) {
-  const CXXRecordDecl *SrcDecl = SrcRecordTy->getAsCXXRecordDecl();
-  return IsDeref &&
-         !getContext().getASTRecordLayout(SrcDecl).hasExtendableVFPtr();
-}
-
-static llvm::CallSite emitRTtypeidCall(CodeGenFunction &CGF,
-                                       llvm::Value *Argument) {
-  llvm::Type *ArgTypes[] = {CGF.Int8PtrTy};
-  llvm::FunctionType *FTy =
-      llvm::FunctionType::get(CGF.Int8PtrTy, ArgTypes, false);
-  llvm::Value *Args[] = {Argument};
-  llvm::Constant *Fn = CGF.CGM.CreateRuntimeFunction(FTy, "__RTtypeid");
-  return CGF.EmitRuntimeCallOrInvoke(Fn, Args);
-}
-
-void MicrosoftCXXABI::EmitBadTypeidCall(CodeGenFunction &CGF) {
-  llvm::CallSite Call =
-      emitRTtypeidCall(CGF, llvm::Constant::getNullValue(CGM.VoidPtrTy));
-  Call.setDoesNotReturn();
-  CGF.Builder.CreateUnreachable();
-}
-
-llvm::Value *MicrosoftCXXABI::EmitTypeid(CodeGenFunction &CGF,
-                                         QualType SrcRecordTy,
-                                         Address ThisPtr,
-                                         llvm::Type *StdTypeInfoPtrTy) {
-  std::tie(ThisPtr, std::ignore, std::ignore) =
-      performBaseAdjustment(CGF, ThisPtr, SrcRecordTy);
-  auto Typeid = emitRTtypeidCall(CGF, ThisPtr.getPointer()).getInstruction();
-  return CGF.Builder.CreateBitCast(Typeid, StdTypeInfoPtrTy);
-}
-
-bool MicrosoftCXXABI::shouldDynamicCastCallBeNullChecked(bool SrcIsPtr,
-                                                         QualType SrcRecordTy) {
-  const CXXRecordDecl *SrcDecl = SrcRecordTy->getAsCXXRecordDecl();
-  return SrcIsPtr &&
-         !getContext().getASTRecordLayout(SrcDecl).hasExtendableVFPtr();
-}
-
-llvm::Value *MicrosoftCXXABI::EmitDynamicCastCall(
-    CodeGenFunction &CGF, Address This, QualType SrcRecordTy,
-    QualType DestTy, QualType DestRecordTy, llvm::BasicBlock *CastEnd) {
-  llvm::Type *DestLTy = CGF.ConvertType(DestTy);
-
-  llvm::Value *SrcRTTI =
-      CGF.CGM.GetAddrOfRTTIDescriptor(SrcRecordTy.getUnqualifiedType());
-  llvm::Value *DestRTTI =
-      CGF.CGM.GetAddrOfRTTIDescriptor(DestRecordTy.getUnqualifiedType());
-
-  llvm::Value *Offset;
-  std::tie(This, Offset, std::ignore) =
-      performBaseAdjustment(CGF, This, SrcRecordTy);
-  llvm::Value *ThisPtr = This.getPointer();
-  Offset = CGF.Builder.CreateTrunc(Offset, CGF.Int32Ty);
-
-  // PVOID __RTDynamicCast(
-  //   PVOID inptr,
-  //   LONG VfDelta,
-  //   PVOID SrcType,
-  //   PVOID TargetType,
-  //   BOOL isReference)
-  llvm::Type *ArgTypes[] = {CGF.Int8PtrTy, CGF.Int32Ty, CGF.Int8PtrTy,
-                            CGF.Int8PtrTy, CGF.Int32Ty};
-  llvm::Constant *Function = CGF.CGM.CreateRuntimeFunction(
-      llvm::FunctionType::get(CGF.Int8PtrTy, ArgTypes, false),
-      "__RTDynamicCast");
-  llvm::Value *Args[] = {
-      ThisPtr, Offset, SrcRTTI, DestRTTI,
-      llvm::ConstantInt::get(CGF.Int32Ty, DestTy->isReferenceType())};
-  ThisPtr = CGF.EmitRuntimeCallOrInvoke(Function, Args).getInstruction();
-  return CGF.Builder.CreateBitCast(ThisPtr, DestLTy);
-}
-
-llvm::Value *
-MicrosoftCXXABI::EmitDynamicCastToVoid(CodeGenFunction &CGF, Address Value,
-                                       QualType SrcRecordTy,
-                                       QualType DestTy) {
-  std::tie(Value, std::ignore, std::ignore) =
-      performBaseAdjustment(CGF, Value, SrcRecordTy);
-
-  // PVOID __RTCastToVoid(
-  //   PVOID inptr)
-  llvm::Type *ArgTypes[] = {CGF.Int8PtrTy};
-  llvm::Constant *Function = CGF.CGM.CreateRuntimeFunction(
-      llvm::FunctionType::get(CGF.Int8PtrTy, ArgTypes, false),
-      "__RTCastToVoid");
-  llvm::Value *Args[] = {Value.getPointer()};
-  return CGF.EmitRuntimeCall(Function, Args);
-}
-
-bool MicrosoftCXXABI::EmitBadCastCall(CodeGenFunction &CGF) {
-  return false;
-}
-
-llvm::Value *MicrosoftCXXABI::GetVirtualBaseClassOffset(
-    CodeGenFunction &CGF, Address This, const CXXRecordDecl *ClassDecl,
-    const CXXRecordDecl *BaseClassDecl) {
-  const ASTContext &Context = getContext();
-  int64_t VBPtrChars =
-      Context.getASTRecordLayout(ClassDecl).getVBPtrOffset().getQuantity();
-  llvm::Value *VBPtrOffset = llvm::ConstantInt::get(CGM.PtrDiffTy, VBPtrChars);
-  CharUnits IntSize = Context.getTypeSizeInChars(Context.IntTy);
-  CharUnits VBTableChars =
-      IntSize *
-      CGM.getMicrosoftVTableContext().getVBTableIndex(ClassDecl, BaseClassDecl);
-  llvm::Value *VBTableOffset =
-      llvm::ConstantInt::get(CGM.IntTy, VBTableChars.getQuantity());
-
-  llvm::Value *VBPtrToNewBase =
-      GetVBaseOffsetFromVBPtr(CGF, This, VBPtrOffset, VBTableOffset);
-  VBPtrToNewBase =
-      CGF.Builder.CreateSExtOrBitCast(VBPtrToNewBase, CGM.PtrDiffTy);
-  return CGF.Builder.CreateNSWAdd(VBPtrOffset, VBPtrToNewBase);
-}
-
-bool MicrosoftCXXABI::HasThisReturn(GlobalDecl GD) const {
-  return isa<CXXConstructorDecl>(GD.getDecl());
-}
-
-static bool isDeletingDtor(GlobalDecl GD) {
-  return isa<CXXDestructorDecl>(GD.getDecl()) &&
-         GD.getDtorType() == Dtor_Deleting;
-}
-
-bool MicrosoftCXXABI::hasMostDerivedReturn(GlobalDecl GD) const {
-  return isDeletingDtor(GD);
-}
-
-bool MicrosoftCXXABI::classifyReturnType(CGFunctionInfo &FI) const {
-  const CXXRecordDecl *RD = FI.getReturnType()->getAsCXXRecordDecl();
-  if (!RD)
-    return false;
-
-  CharUnits Align = CGM.getContext().getTypeAlignInChars(FI.getReturnType());
-  if (FI.isInstanceMethod()) {
-    // If it's an instance method, aggregates are always returned indirectly via
-    // the second parameter.
-    FI.getReturnInfo() = ABIArgInfo::getIndirect(Align, /*ByVal=*/false);
-    FI.getReturnInfo().setSRetAfterThis(FI.isInstanceMethod());
-
-    // aarch64-windows requires that instance methods use X1 for the return
-    // address. So for aarch64-windows we do not mark the
-    // return as SRet.
-    FI.getReturnInfo().setSuppressSRet(CGM.getTarget().getTriple().getArch() ==
-                                       llvm::Triple::aarch64);
-    return true;
-  } else if (!RD->isPOD()) {
-    // If it's a free function, non-POD types are returned indirectly.
-    FI.getReturnInfo() = ABIArgInfo::getIndirect(Align, /*ByVal=*/false);
-
-    // aarch64-windows requires that non-POD, non-instance returns use X0 for
-    // the return address. So for aarch64-windows we do not mark the return as
-    // SRet.
-    FI.getReturnInfo().setSuppressSRet(CGM.getTarget().getTriple().getArch() ==
-                                       llvm::Triple::aarch64);
-    return true;
-  }
-
-  // Otherwise, use the C ABI rules.
-  return false;
-}
-
-llvm::BasicBlock *
-MicrosoftCXXABI::EmitCtorCompleteObjectHandler(CodeGenFunction &CGF,
-                                               const CXXRecordDecl *RD) {
-  llvm::Value *IsMostDerivedClass = getStructorImplicitParamValue(CGF);
-  assert(IsMostDerivedClass &&
-         "ctor for a class with virtual bases must have an implicit parameter");
-  llvm::Value *IsCompleteObject =
-    CGF.Builder.CreateIsNotNull(IsMostDerivedClass, "is_complete_object");
-
-  llvm::BasicBlock *CallVbaseCtorsBB = CGF.createBasicBlock("ctor.init_vbases");
-  llvm::BasicBlock *SkipVbaseCtorsBB = CGF.createBasicBlock("ctor.skip_vbases");
-  CGF.Builder.CreateCondBr(IsCompleteObject,
-                           CallVbaseCtorsBB, SkipVbaseCtorsBB);
-
-  CGF.EmitBlock(CallVbaseCtorsBB);
-
-  // Fill in the vbtable pointers here.
-  EmitVBPtrStores(CGF, RD);
-
-  // CGF will put the base ctor calls in this basic block for us later.
-
-  return SkipVbaseCtorsBB;
-}
-
-llvm::BasicBlock *
-MicrosoftCXXABI::EmitDtorCompleteObjectHandler(CodeGenFunction &CGF) {
-  llvm::Value *IsMostDerivedClass = getStructorImplicitParamValue(CGF);
-  assert(IsMostDerivedClass &&
-         "ctor for a class with virtual bases must have an implicit parameter");
-  llvm::Value *IsCompleteObject =
-      CGF.Builder.CreateIsNotNull(IsMostDerivedClass, "is_complete_object");
-
-  llvm::BasicBlock *CallVbaseDtorsBB = CGF.createBasicBlock("Dtor.dtor_vbases");
-  llvm::BasicBlock *SkipVbaseDtorsBB = CGF.createBasicBlock("Dtor.skip_vbases");
-  CGF.Builder.CreateCondBr(IsCompleteObject,
-                           CallVbaseDtorsBB, SkipVbaseDtorsBB);
-
-  CGF.EmitBlock(CallVbaseDtorsBB);
-  // CGF will put the base dtor calls in this basic block for us later.
-
-  return SkipVbaseDtorsBB;
-}
-
-void MicrosoftCXXABI::initializeHiddenVirtualInheritanceMembers(
-    CodeGenFunction &CGF, const CXXRecordDecl *RD) {
-  // In most cases, an override for a vbase virtual method can adjust
-  // the "this" parameter by applying a constant offset.
-  // However, this is not enough while a constructor or a destructor of some
-  // class X is being executed if all the following conditions are met:
-  //  - X has virtual bases, (1)
-  //  - X overrides a virtual method M of a vbase Y, (2)
-  //  - X itself is a vbase of the most derived class.
-  //
-  // If (1) and (2) are true, the vtorDisp for vbase Y is a hidden member of X
-  // which holds the extra amount of "this" adjustment we must do when we use
-  // the X vftables (i.e. during X ctor or dtor).
-  // Outside the ctors and dtors, the values of vtorDisps are zero.
-
-  const ASTRecordLayout &Layout = getContext().getASTRecordLayout(RD);
-  typedef ASTRecordLayout::VBaseOffsetsMapTy VBOffsets;
-  const VBOffsets &VBaseMap = Layout.getVBaseOffsetsMap();
-  CGBuilderTy &Builder = CGF.Builder;
-
-  unsigned AS = getThisAddress(CGF).getAddressSpace();
-  llvm::Value *Int8This = nullptr;  // Initialize lazily.
-
-  for (const CXXBaseSpecifier &S : RD->vbases()) {
-    const CXXRecordDecl *VBase = S.getType()->getAsCXXRecordDecl();
-    auto I = VBaseMap.find(VBase);
-    assert(I != VBaseMap.end());
-    if (!I->second.hasVtorDisp())
-      continue;
-
-    llvm::Value *VBaseOffset =
-        GetVirtualBaseClassOffset(CGF, getThisAddress(CGF), RD, VBase);
-    uint64_t ConstantVBaseOffset = I->second.VBaseOffset.getQuantity();
-
-    // vtorDisp_for_vbase = vbptr[vbase_idx] - offsetof(RD, vbase).
-    llvm::Value *VtorDispValue = Builder.CreateSub(
-        VBaseOffset, llvm::ConstantInt::get(CGM.PtrDiffTy, ConstantVBaseOffset),
-        "vtordisp.value");
-    VtorDispValue = Builder.CreateTruncOrBitCast(VtorDispValue, CGF.Int32Ty);
-
-    if (!Int8This)
-      Int8This = Builder.CreateBitCast(getThisValue(CGF),
-                                       CGF.Int8Ty->getPointerTo(AS));
-    llvm::Value *VtorDispPtr = Builder.CreateInBoundsGEP(Int8This, VBaseOffset);
-    // vtorDisp is always the 32-bits before the vbase in the class layout.
-    VtorDispPtr = Builder.CreateConstGEP1_32(VtorDispPtr, -4);
-    VtorDispPtr = Builder.CreateBitCast(
-        VtorDispPtr, CGF.Int32Ty->getPointerTo(AS), "vtordisp.ptr");
-
-    Builder.CreateAlignedStore(VtorDispValue, VtorDispPtr,
-                               CharUnits::fromQuantity(4));
-  }
-}
-
-static bool hasDefaultCXXMethodCC(ASTContext &Context,
-                                  const CXXMethodDecl *MD) {
-  CallingConv ExpectedCallingConv = Context.getDefaultCallingConvention(
-      /*IsVariadic=*/false, /*IsCXXMethod=*/true);
-  CallingConv ActualCallingConv =
-      MD->getType()->getAs<FunctionProtoType>()->getCallConv();
-  return ExpectedCallingConv == ActualCallingConv;
-}
-
-void MicrosoftCXXABI::EmitCXXConstructors(const CXXConstructorDecl *D) {
-  // There's only one constructor type in this ABI.
-  CGM.EmitGlobal(GlobalDecl(D, Ctor_Complete));
-
-  // Exported default constructors either have a simple call-site where they use
-  // the typical calling convention and have a single 'this' pointer for an
-  // argument -or- they get a wrapper function which appropriately thunks to the
-  // real default constructor.  This thunk is the default constructor closure.
-  if (D->hasAttr<DLLExportAttr>() && D->isDefaultConstructor())
-    if (!hasDefaultCXXMethodCC(getContext(), D) || D->getNumParams() != 0) {
-      llvm::Function *Fn = getAddrOfCXXCtorClosure(D, Ctor_DefaultClosure);
-      Fn->setLinkage(llvm::GlobalValue::WeakODRLinkage);
-      CGM.setGVProperties(Fn, D);
-    }
-}
-
-void MicrosoftCXXABI::EmitVBPtrStores(CodeGenFunction &CGF,
-                                      const CXXRecordDecl *RD) {
-  Address This = getThisAddress(CGF);
-  This = CGF.Builder.CreateElementBitCast(This, CGM.Int8Ty, "this.int8");
-  const ASTContext &Context = getContext();
-  const ASTRecordLayout &Layout = Context.getASTRecordLayout(RD);
-
-  const VBTableGlobals &VBGlobals = enumerateVBTables(RD);
-  for (unsigned I = 0, E = VBGlobals.VBTables->size(); I != E; ++I) {
-    const std::unique_ptr<VPtrInfo> &VBT = (*VBGlobals.VBTables)[I];
-    llvm::GlobalVariable *GV = VBGlobals.Globals[I];
-    const ASTRecordLayout &SubobjectLayout =
-        Context.getASTRecordLayout(VBT->IntroducingObject);
-    CharUnits Offs = VBT->NonVirtualOffset;
-    Offs += SubobjectLayout.getVBPtrOffset();
-    if (VBT->getVBaseWithVPtr())
-      Offs += Layout.getVBaseClassOffset(VBT->getVBaseWithVPtr());
-    Address VBPtr = CGF.Builder.CreateConstInBoundsByteGEP(This, Offs);
-    llvm::Value *GVPtr =
-        CGF.Builder.CreateConstInBoundsGEP2_32(GV->getValueType(), GV, 0, 0);
-    VBPtr = CGF.Builder.CreateElementBitCast(VBPtr, GVPtr->getType(),
-                                      "vbptr." + VBT->ObjectWithVPtr->getName());
-    CGF.Builder.CreateStore(GVPtr, VBPtr);
-  }
-}
-
-CGCXXABI::AddedStructorArgs
-MicrosoftCXXABI::buildStructorSignature(const CXXMethodDecl *MD, StructorType T,
-                                        SmallVectorImpl<CanQualType> &ArgTys) {
-  AddedStructorArgs Added;
-  // TODO: 'for base' flag
-  if (T == StructorType::Deleting) {
-    // The scalar deleting destructor takes an implicit int parameter.
-    ArgTys.push_back(getContext().IntTy);
-    ++Added.Suffix;
-  }
-  auto *CD = dyn_cast<CXXConstructorDecl>(MD);
-  if (!CD)
-    return Added;
-
-  // All parameters are already in place except is_most_derived, which goes
-  // after 'this' if it's variadic and last if it's not.
-
-  const CXXRecordDecl *Class = CD->getParent();
-  const FunctionProtoType *FPT = CD->getType()->castAs<FunctionProtoType>();
-  if (Class->getNumVBases()) {
-    if (FPT->isVariadic()) {
-      ArgTys.insert(ArgTys.begin() + 1, getContext().IntTy);
-      ++Added.Prefix;
-    } else {
-      ArgTys.push_back(getContext().IntTy);
-      ++Added.Suffix;
-    }
-  }
-
-  return Added;
-}
-
-void MicrosoftCXXABI::setCXXDestructorDLLStorage(llvm::GlobalValue *GV,
-                                                 const CXXDestructorDecl *Dtor,
-                                                 CXXDtorType DT) const {
-  // Deleting destructor variants are never imported or exported. Give them the
-  // default storage class.
-  if (DT == Dtor_Deleting) {
-    GV->setDLLStorageClass(llvm::GlobalValue::DefaultStorageClass);
-  } else {
-    const NamedDecl *ND = Dtor;
-    CGM.setDLLImportDLLExport(GV, ND);
-  }
-}
-
-llvm::GlobalValue::LinkageTypes MicrosoftCXXABI::getCXXDestructorLinkage(
-    GVALinkage Linkage, const CXXDestructorDecl *Dtor, CXXDtorType DT) const {
-  // Internal things are always internal, regardless of attributes. After this,
-  // we know the thunk is externally visible.
-  if (Linkage == GVA_Internal)
-    return llvm::GlobalValue::InternalLinkage;
-
-  switch (DT) {
-  case Dtor_Base:
-    // The base destructor most closely tracks the user-declared constructor, so
-    // we delegate back to the normal declarator case.
-    return CGM.getLLVMLinkageForDeclarator(Dtor, Linkage,
-                                           /*isConstantVariable=*/false);
-  case Dtor_Complete:
-    // The complete destructor is like an inline function, but it may be
-    // imported and therefore must be exported as well. This requires changing
-    // the linkage if a DLL attribute is present.
-    if (Dtor->hasAttr<DLLExportAttr>())
-      return llvm::GlobalValue::WeakODRLinkage;
-    if (Dtor->hasAttr<DLLImportAttr>())
-      return llvm::GlobalValue::AvailableExternallyLinkage;
-    return llvm::GlobalValue::LinkOnceODRLinkage;
-  case Dtor_Deleting:
-    // Deleting destructors are like inline functions. They have vague linkage
-    // and are emitted everywhere they are used. They are internal if the class
-    // is internal.
-    return llvm::GlobalValue::LinkOnceODRLinkage;
-  case Dtor_Comdat:
-    llvm_unreachable("MS C++ ABI does not support comdat dtors");
-  }
-  llvm_unreachable("invalid dtor type");
-}
-
-void MicrosoftCXXABI::EmitCXXDestructors(const CXXDestructorDecl *D) {
-  // The TU defining a dtor is only guaranteed to emit a base destructor.  All
-  // other destructor variants are delegating thunks.
-  CGM.EmitGlobal(GlobalDecl(D, Dtor_Base));
-}
-
-CharUnits
-MicrosoftCXXABI::getVirtualFunctionPrologueThisAdjustment(GlobalDecl GD) {
-  const CXXMethodDecl *MD = cast<CXXMethodDecl>(GD.getDecl());
-
-  if (const CXXDestructorDecl *DD = dyn_cast<CXXDestructorDecl>(MD)) {
-    // Complete destructors take a pointer to the complete object as a
-    // parameter, thus don't need this adjustment.
-    if (GD.getDtorType() == Dtor_Complete)
-      return CharUnits();
-
-    // There's no Dtor_Base in vftable but it shares the this adjustment with
-    // the deleting one, so look it up instead.
-    GD = GlobalDecl(DD, Dtor_Deleting);
-  }
-
-  MethodVFTableLocation ML =
-      CGM.getMicrosoftVTableContext().getMethodVFTableLocation(GD);
-  CharUnits Adjustment = ML.VFPtrOffset;
-
-  // Normal virtual instance methods need to adjust from the vfptr that first
-  // defined the virtual method to the virtual base subobject, but destructors
-  // do not.  The vector deleting destructor thunk applies this adjustment for
-  // us if necessary.
-  if (isa<CXXDestructorDecl>(MD))
-    Adjustment = CharUnits::Zero();
-
-  if (ML.VBase) {
-    const ASTRecordLayout &DerivedLayout =
-        getContext().getASTRecordLayout(MD->getParent());
-    Adjustment += DerivedLayout.getVBaseClassOffset(ML.VBase);
-  }
-
-  return Adjustment;
-}
-
-Address MicrosoftCXXABI::adjustThisArgumentForVirtualFunctionCall(
-    CodeGenFunction &CGF, GlobalDecl GD, Address This,
-    bool VirtualCall) {
-  if (!VirtualCall) {
-    // If the call of a virtual function is not virtual, we just have to
-    // compensate for the adjustment the virtual function does in its prologue.
-    CharUnits Adjustment = getVirtualFunctionPrologueThisAdjustment(GD);
-    if (Adjustment.isZero())
-      return This;
-
-    This = CGF.Builder.CreateElementBitCast(This, CGF.Int8Ty);
-    assert(Adjustment.isPositive());
-    return CGF.Builder.CreateConstByteGEP(This, Adjustment);
-  }
-
-  const CXXMethodDecl *MD = cast<CXXMethodDecl>(GD.getDecl());
-
-  GlobalDecl LookupGD = GD;
-  if (const CXXDestructorDecl *DD = dyn_cast<CXXDestructorDecl>(MD)) {
-    // Complete dtors take a pointer to the complete object,
-    // thus don't need adjustment.
-    if (GD.getDtorType() == Dtor_Complete)
-      return This;
-
-    // There's only Dtor_Deleting in vftable but it shares the this adjustment
-    // with the base one, so look up the deleting one instead.
-    LookupGD = GlobalDecl(DD, Dtor_Deleting);
-  }
-  MethodVFTableLocation ML =
-      CGM.getMicrosoftVTableContext().getMethodVFTableLocation(LookupGD);
-
-  CharUnits StaticOffset = ML.VFPtrOffset;
-
-  // Base destructors expect 'this' to point to the beginning of the base
-  // subobject, not the first vfptr that happens to contain the virtual dtor.
-  // However, we still need to apply the virtual base adjustment.
-  if (isa<CXXDestructorDecl>(MD) && GD.getDtorType() == Dtor_Base)
-    StaticOffset = CharUnits::Zero();
-
-  Address Result = This;
-  if (ML.VBase) {
-    Result = CGF.Builder.CreateElementBitCast(Result, CGF.Int8Ty);
-
-    const CXXRecordDecl *Derived = MD->getParent();
-    const CXXRecordDecl *VBase = ML.VBase;
-    llvm::Value *VBaseOffset =
-      GetVirtualBaseClassOffset(CGF, Result, Derived, VBase);
-    llvm::Value *VBasePtr =
-      CGF.Builder.CreateInBoundsGEP(Result.getPointer(), VBaseOffset);
-    CharUnits VBaseAlign =
-      CGF.CGM.getVBaseAlignment(Result.getAlignment(), Derived, VBase);
-    Result = Address(VBasePtr, VBaseAlign);
-  }
-  if (!StaticOffset.isZero()) {
-    assert(StaticOffset.isPositive());
-    Result = CGF.Builder.CreateElementBitCast(Result, CGF.Int8Ty);
-    if (ML.VBase) {
-      // Non-virtual adjustment might result in a pointer outside the allocated
-      // object, e.g. if the final overrider class is laid out after the virtual
-      // base that declares a method in the most derived class.
-      // FIXME: Update the code that emits this adjustment in thunks prologues.
-      Result = CGF.Builder.CreateConstByteGEP(Result, StaticOffset);
-    } else {
-      Result = CGF.Builder.CreateConstInBoundsByteGEP(Result, StaticOffset);
-    }
-  }
-  return Result;
-}
-
-void MicrosoftCXXABI::addImplicitStructorParams(CodeGenFunction &CGF,
-                                                QualType &ResTy,
-                                                FunctionArgList &Params) {
-  ASTContext &Context = getContext();
-  const CXXMethodDecl *MD = cast<CXXMethodDecl>(CGF.CurGD.getDecl());
-  assert(isa<CXXConstructorDecl>(MD) || isa<CXXDestructorDecl>(MD));
-  if (isa<CXXConstructorDecl>(MD) && MD->getParent()->getNumVBases()) {
-    auto *IsMostDerived = ImplicitParamDecl::Create(
-        Context, /*DC=*/nullptr, CGF.CurGD.getDecl()->getLocation(),
-        &Context.Idents.get("is_most_derived"), Context.IntTy,
-        ImplicitParamDecl::Other);
-    // The 'most_derived' parameter goes second if the ctor is variadic and last
-    // if it's not.  Dtors can't be variadic.
-    const FunctionProtoType *FPT = MD->getType()->castAs<FunctionProtoType>();
-    if (FPT->isVariadic())
-      Params.insert(Params.begin() + 1, IsMostDerived);
-    else
-      Params.push_back(IsMostDerived);
-    getStructorImplicitParamDecl(CGF) = IsMostDerived;
-  } else if (isDeletingDtor(CGF.CurGD)) {
-    auto *ShouldDelete = ImplicitParamDecl::Create(
-        Context, /*DC=*/nullptr, CGF.CurGD.getDecl()->getLocation(),
-        &Context.Idents.get("should_call_delete"), Context.IntTy,
-        ImplicitParamDecl::Other);
-    Params.push_back(ShouldDelete);
-    getStructorImplicitParamDecl(CGF) = ShouldDelete;
-  }
-}
-
-void MicrosoftCXXABI::EmitInstanceFunctionProlog(CodeGenFunction &CGF) {
-  // Naked functions have no prolog.
-  if (CGF.CurFuncDecl && CGF.CurFuncDecl->hasAttr<NakedAttr>())
-    return;
-
-  // Overridden virtual methods of non-primary bases need to adjust the incoming
-  // 'this' pointer in the prologue. In this hierarchy, C::b will subtract
-  // sizeof(void*) to adjust from B* to C*:
-  //   struct A { virtual void a(); };
-  //   struct B { virtual void b(); };
-  //   struct C : A, B { virtual void b(); };
-  //
-  // Leave the value stored in the 'this' alloca unadjusted, so that the
-  // debugger sees the unadjusted value. Microsoft debuggers require this, and
-  // will apply the ThisAdjustment in the method type information.
-  // FIXME: Do something better for DWARF debuggers, which won't expect this,
-  // without making our codegen depend on debug info settings.
-  llvm::Value *This = loadIncomingCXXThis(CGF);
-  const CXXMethodDecl *MD = cast<CXXMethodDecl>(CGF.CurGD.getDecl());
-  if (!CGF.CurFuncIsThunk && MD->isVirtual()) {
-    CharUnits Adjustment = getVirtualFunctionPrologueThisAdjustment(CGF.CurGD);
-    if (!Adjustment.isZero()) {
-      unsigned AS = cast<llvm::PointerType>(This->getType())->getAddressSpace();
-      llvm::Type *charPtrTy = CGF.Int8Ty->getPointerTo(AS),
-                 *thisTy = This->getType();
-      This = CGF.Builder.CreateBitCast(This, charPtrTy);
-      assert(Adjustment.isPositive());
-      This = CGF.Builder.CreateConstInBoundsGEP1_32(CGF.Int8Ty, This,
-                                                    -Adjustment.getQuantity());
-      This = CGF.Builder.CreateBitCast(This, thisTy, "this.adjusted");
-    }
-  }
-  setCXXABIThisValue(CGF, This);
-
-  // If this is a function that the ABI specifies returns 'this', initialize
-  // the return slot to 'this' at the start of the function.
-  //
-  // Unlike the setting of return types, this is done within the ABI
-  // implementation instead of by clients of CGCXXABI because:
-  // 1) getThisValue is currently protected
-  // 2) in theory, an ABI could implement 'this' returns some other way;
-  //    HasThisReturn only specifies a contract, not the implementation
-  if (HasThisReturn(CGF.CurGD))
-    CGF.Builder.CreateStore(getThisValue(CGF), CGF.ReturnValue);
-  else if (hasMostDerivedReturn(CGF.CurGD))
-    CGF.Builder.CreateStore(CGF.EmitCastToVoidPtr(getThisValue(CGF)),
-                            CGF.ReturnValue);
-
-  if (isa<CXXConstructorDecl>(MD) && MD->getParent()->getNumVBases()) {
-    assert(getStructorImplicitParamDecl(CGF) &&
-           "no implicit parameter for a constructor with virtual bases?");
-    getStructorImplicitParamValue(CGF)
-      = CGF.Builder.CreateLoad(
-          CGF.GetAddrOfLocalVar(getStructorImplicitParamDecl(CGF)),
-          "is_most_derived");
-  }
-
-  if (isDeletingDtor(CGF.CurGD)) {
-    assert(getStructorImplicitParamDecl(CGF) &&
-           "no implicit parameter for a deleting destructor?");
-    getStructorImplicitParamValue(CGF)
-      = CGF.Builder.CreateLoad(
-          CGF.GetAddrOfLocalVar(getStructorImplicitParamDecl(CGF)),
-          "should_call_delete");
-  }
-}
-
-CGCXXABI::AddedStructorArgs MicrosoftCXXABI::addImplicitConstructorArgs(
-    CodeGenFunction &CGF, const CXXConstructorDecl *D, CXXCtorType Type,
-    bool ForVirtualBase, bool Delegating, CallArgList &Args) {
-  assert(Type == Ctor_Complete || Type == Ctor_Base);
-
-  // Check if we need a 'most_derived' parameter.
-  if (!D->getParent()->getNumVBases())
-    return AddedStructorArgs{};
-
-  // Add the 'most_derived' argument second if we are variadic or last if not.
-  const FunctionProtoType *FPT = D->getType()->castAs<FunctionProtoType>();
-  llvm::Value *MostDerivedArg;
-  if (Delegating) {
-    MostDerivedArg = getStructorImplicitParamValue(CGF);
-  } else {
-    MostDerivedArg = llvm::ConstantInt::get(CGM.Int32Ty, Type == Ctor_Complete);
-  }
-  RValue RV = RValue::get(MostDerivedArg);
-  if (FPT->isVariadic()) {
-    Args.insert(Args.begin() + 1, CallArg(RV, getContext().IntTy));
-    return AddedStructorArgs::prefix(1);
-  }
-  Args.add(RV, getContext().IntTy);
-  return AddedStructorArgs::suffix(1);
-}
-
-void MicrosoftCXXABI::EmitDestructorCall(CodeGenFunction &CGF,
-                                         const CXXDestructorDecl *DD,
-                                         CXXDtorType Type, bool ForVirtualBase,
-                                         bool Delegating, Address This) {
-  // Use the base destructor variant in place of the complete destructor variant
-  // if the class has no virtual bases. This effectively implements some of the
-  // -mconstructor-aliases optimization, but as part of the MS C++ ABI.
-  if (Type == Dtor_Complete && DD->getParent()->getNumVBases() == 0)
-    Type = Dtor_Base;
-
-  CGCallee Callee =
-      CGCallee::forDirect(CGM.getAddrOfCXXStructor(DD, getFromDtorType(Type)),
-                          GlobalDecl(DD, Type));
-
-  if (DD->isVirtual()) {
-    assert(Type != CXXDtorType::Dtor_Deleting &&
-           "The deleting destructor should only be called via a virtual call");
-    This = adjustThisArgumentForVirtualFunctionCall(CGF, GlobalDecl(DD, Type),
-                                                    This, false);
-  }
-
-  llvm::BasicBlock *BaseDtorEndBB = nullptr;
-  if (ForVirtualBase && isa<CXXConstructorDecl>(CGF.CurCodeDecl)) {
-    BaseDtorEndBB = EmitDtorCompleteObjectHandler(CGF);
-  }
-
-  CGF.EmitCXXDestructorCall(DD, Callee, This.getPointer(),
-                            /*ImplicitParam=*/nullptr,
-                            /*ImplicitParamTy=*/QualType(), nullptr,
-                            getFromDtorType(Type));
-  if (BaseDtorEndBB) {
-    // Complete object handler should continue to be the remaining
-    CGF.Builder.CreateBr(BaseDtorEndBB);
-    CGF.EmitBlock(BaseDtorEndBB);
-  }
-}
-
-void MicrosoftCXXABI::emitVTableTypeMetadata(const VPtrInfo &Info,
-                                             const CXXRecordDecl *RD,
-                                             llvm::GlobalVariable *VTable) {
-  if (!CGM.getCodeGenOpts().LTOUnit)
-    return;
-
-  // The location of the first virtual function pointer in the virtual table,
-  // aka the "address point" on Itanium. This is at offset 0 if RTTI is
-  // disabled, or sizeof(void*) if RTTI is enabled.
-  CharUnits AddressPoint =
-      getContext().getLangOpts().RTTIData
-          ? getContext().toCharUnitsFromBits(
-                getContext().getTargetInfo().getPointerWidth(0))
-          : CharUnits::Zero();
-
-  if (Info.PathToIntroducingObject.empty()) {
-    CGM.AddVTableTypeMetadata(VTable, AddressPoint, RD);
-    return;
-  }
-
-  // Add a bitset entry for the least derived base belonging to this vftable.
-  CGM.AddVTableTypeMetadata(VTable, AddressPoint,
-                            Info.PathToIntroducingObject.back());
-
-  // Add a bitset entry for each derived class that is laid out at the same
-  // offset as the least derived base.
-  for (unsigned I = Info.PathToIntroducingObject.size() - 1; I != 0; --I) {
-    const CXXRecordDecl *DerivedRD = Info.PathToIntroducingObject[I - 1];
-    const CXXRecordDecl *BaseRD = Info.PathToIntroducingObject[I];
-
-    const ASTRecordLayout &Layout =
-        getContext().getASTRecordLayout(DerivedRD);
-    CharUnits Offset;
-    auto VBI = Layout.getVBaseOffsetsMap().find(BaseRD);
-    if (VBI == Layout.getVBaseOffsetsMap().end())
-      Offset = Layout.getBaseClassOffset(BaseRD);
-    else
-      Offset = VBI->second.VBaseOffset;
-    if (!Offset.isZero())
-      return;
-    CGM.AddVTableTypeMetadata(VTable, AddressPoint, DerivedRD);
-  }
-
-  // Finally do the same for the most derived class.
-  if (Info.FullOffsetInMDC.isZero())
-    CGM.AddVTableTypeMetadata(VTable, AddressPoint, RD);
-}
-
-void MicrosoftCXXABI::emitVTableDefinitions(CodeGenVTables &CGVT,
-                                            const CXXRecordDecl *RD) {
-  MicrosoftVTableContext &VFTContext = CGM.getMicrosoftVTableContext();
-  const VPtrInfoVector &VFPtrs = VFTContext.getVFPtrOffsets(RD);
-
-  for (const std::unique_ptr<VPtrInfo>& Info : VFPtrs) {
-    llvm::GlobalVariable *VTable = getAddrOfVTable(RD, Info->FullOffsetInMDC);
-    if (VTable->hasInitializer())
-      continue;
-
-    const VTableLayout &VTLayout =
-      VFTContext.getVFTableLayout(RD, Info->FullOffsetInMDC);
-
-    llvm::Constant *RTTI = nullptr;
-    if (any_of(VTLayout.vtable_components(),
-               [](const VTableComponent &VTC) { return VTC.isRTTIKind(); }))
-      RTTI = getMSCompleteObjectLocator(RD, *Info);
-
-    ConstantInitBuilder Builder(CGM);
-    auto Components = Builder.beginStruct();
-    CGVT.createVTableInitializer(Components, VTLayout, RTTI);
-    Components.finishAndSetAsInitializer(VTable);
-
-    emitVTableTypeMetadata(*Info, RD, VTable);
-  }
-}
-
-bool MicrosoftCXXABI::isVirtualOffsetNeededForVTableField(
-    CodeGenFunction &CGF, CodeGenFunction::VPtr Vptr) {
-  return Vptr.NearestVBase != nullptr;
-}
-
-llvm::Value *MicrosoftCXXABI::getVTableAddressPointInStructor(
-    CodeGenFunction &CGF, const CXXRecordDecl *VTableClass, BaseSubobject Base,
-    const CXXRecordDecl *NearestVBase) {
-  llvm::Constant *VTableAddressPoint = getVTableAddressPoint(Base, VTableClass);
-  if (!VTableAddressPoint) {
-    assert(Base.getBase()->getNumVBases() &&
-           !getContext().getASTRecordLayout(Base.getBase()).hasOwnVFPtr());
-  }
-  return VTableAddressPoint;
-}
-
-static void mangleVFTableName(MicrosoftMangleContext &MangleContext,
-                              const CXXRecordDecl *RD, const VPtrInfo &VFPtr,
-                              SmallString<256> &Name) {
-  llvm::raw_svector_ostream Out(Name);
-  MangleContext.mangleCXXVFTable(RD, VFPtr.MangledPath, Out);
-}
-
-llvm::Constant *
-MicrosoftCXXABI::getVTableAddressPoint(BaseSubobject Base,
-                                       const CXXRecordDecl *VTableClass) {
-  (void)getAddrOfVTable(VTableClass, Base.getBaseOffset());
-  VFTableIdTy ID(VTableClass, Base.getBaseOffset());
-  return VFTablesMap[ID];
-}
-
-llvm::Constant *MicrosoftCXXABI::getVTableAddressPointForConstExpr(
-    BaseSubobject Base, const CXXRecordDecl *VTableClass) {
-  llvm::Constant *VFTable = getVTableAddressPoint(Base, VTableClass);
-  assert(VFTable && "Couldn't find a vftable for the given base?");
-  return VFTable;
-}
-
-llvm::GlobalVariable *MicrosoftCXXABI::getAddrOfVTable(const CXXRecordDecl *RD,
-                                                       CharUnits VPtrOffset) {
-  // getAddrOfVTable may return 0 if asked to get an address of a vtable which
-  // shouldn't be used in the given record type. We want to cache this result in
-  // VFTablesMap, thus a simple zero check is not sufficient.
-
-  VFTableIdTy ID(RD, VPtrOffset);
-  VTablesMapTy::iterator I;
-  bool Inserted;
-  std::tie(I, Inserted) = VTablesMap.insert(std::make_pair(ID, nullptr));
-  if (!Inserted)
-    return I->second;
-
-  llvm::GlobalVariable *&VTable = I->second;
-
-  MicrosoftVTableContext &VTContext = CGM.getMicrosoftVTableContext();
-  const VPtrInfoVector &VFPtrs = VTContext.getVFPtrOffsets(RD);
-
-  if (DeferredVFTables.insert(RD).second) {
-    // We haven't processed this record type before.
-    // Queue up this vtable for possible deferred emission.
-    CGM.addDeferredVTable(RD);
-
-#ifndef NDEBUG
-    // Create all the vftables at once in order to make sure each vftable has
-    // a unique mangled name.
-    llvm::StringSet<> ObservedMangledNames;
-    for (size_t J = 0, F = VFPtrs.size(); J != F; ++J) {
-      SmallString<256> Name;
-      mangleVFTableName(getMangleContext(), RD, *VFPtrs[J], Name);
-      if (!ObservedMangledNames.insert(Name.str()).second)
-        llvm_unreachable("Already saw this mangling before?");
-    }
-#endif
-  }
-
-  const std::unique_ptr<VPtrInfo> *VFPtrI = std::find_if(
-      VFPtrs.begin(), VFPtrs.end(), [&](const std::unique_ptr<VPtrInfo>& VPI) {
-        return VPI->FullOffsetInMDC == VPtrOffset;
-      });
-  if (VFPtrI == VFPtrs.end()) {
-    VFTablesMap[ID] = nullptr;
-    return nullptr;
-  }
-  const std::unique_ptr<VPtrInfo> &VFPtr = *VFPtrI;
-
-  SmallString<256> VFTableName;
-  mangleVFTableName(getMangleContext(), RD, *VFPtr, VFTableName);
-
-  // Classes marked __declspec(dllimport) need vftables generated on the
-  // import-side in order to support features like constexpr.  No other
-  // translation unit relies on the emission of the local vftable, translation
-  // units are expected to generate them as needed.
-  //
-  // Because of this unique behavior, we maintain this logic here instead of
-  // getVTableLinkage.
-  llvm::GlobalValue::LinkageTypes VFTableLinkage =
-      RD->hasAttr<DLLImportAttr>() ? llvm::GlobalValue::LinkOnceODRLinkage
-                                   : CGM.getVTableLinkage(RD);
-  bool VFTableComesFromAnotherTU =
-      llvm::GlobalValue::isAvailableExternallyLinkage(VFTableLinkage) ||
-      llvm::GlobalValue::isExternalLinkage(VFTableLinkage);
-  bool VTableAliasIsRequred =
-      !VFTableComesFromAnotherTU && getContext().getLangOpts().RTTIData;
-
-  if (llvm::GlobalValue *VFTable =
-          CGM.getModule().getNamedGlobal(VFTableName)) {
-    VFTablesMap[ID] = VFTable;
-    VTable = VTableAliasIsRequred
-                 ? cast<llvm::GlobalVariable>(
-                       cast<llvm::GlobalAlias>(VFTable)->getBaseObject())
-                 : cast<llvm::GlobalVariable>(VFTable);
-    return VTable;
-  }
-
-  const VTableLayout &VTLayout =
-      VTContext.getVFTableLayout(RD, VFPtr->FullOffsetInMDC);
-  llvm::GlobalValue::LinkageTypes VTableLinkage =
-      VTableAliasIsRequred ? llvm::GlobalValue::PrivateLinkage : VFTableLinkage;
-
-  StringRef VTableName = VTableAliasIsRequred ? StringRef() : VFTableName.str();
-
-  llvm::Type *VTableType = CGM.getVTables().getVTableType(VTLayout);
-
-  // Create a backing variable for the contents of VTable.  The VTable may
-  // or may not include space for a pointer to RTTI data.
-  llvm::GlobalValue *VFTable;
-  VTable = new llvm::GlobalVariable(CGM.getModule(), VTableType,
-                                    /*isConstant=*/true, VTableLinkage,
-                                    /*Initializer=*/nullptr, VTableName);
-  VTable->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-
-  llvm::Comdat *C = nullptr;
-  if (!VFTableComesFromAnotherTU &&
-      (llvm::GlobalValue::isWeakForLinker(VFTableLinkage) ||
-       (llvm::GlobalValue::isLocalLinkage(VFTableLinkage) &&
-        VTableAliasIsRequred)))
-    C = CGM.getModule().getOrInsertComdat(VFTableName.str());
-
-  // Only insert a pointer into the VFTable for RTTI data if we are not
-  // importing it.  We never reference the RTTI data directly so there is no
-  // need to make room for it.
-  if (VTableAliasIsRequred) {
-    llvm::Value *GEPIndices[] = {llvm::ConstantInt::get(CGM.Int32Ty, 0),
-                                 llvm::ConstantInt::get(CGM.Int32Ty, 0),
-                                 llvm::ConstantInt::get(CGM.Int32Ty, 1)};
-    // Create a GEP which points just after the first entry in the VFTable,
-    // this should be the location of the first virtual method.
-    llvm::Constant *VTableGEP = llvm::ConstantExpr::getInBoundsGetElementPtr(
-        VTable->getValueType(), VTable, GEPIndices);
-    if (llvm::GlobalValue::isWeakForLinker(VFTableLinkage)) {
-      VFTableLinkage = llvm::GlobalValue::ExternalLinkage;
-      if (C)
-        C->setSelectionKind(llvm::Comdat::Largest);
-    }
-    VFTable = llvm::GlobalAlias::create(CGM.Int8PtrTy,
-                                        /*AddressSpace=*/0, VFTableLinkage,
-                                        VFTableName.str(), VTableGEP,
-                                        &CGM.getModule());
-    VFTable->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-  } else {
-    // We don't need a GlobalAlias to be a symbol for the VTable if we won't
-    // be referencing any RTTI data.
-    // The GlobalVariable will end up being an appropriate definition of the
-    // VFTable.
-    VFTable = VTable;
-  }
-  if (C)
-    VTable->setComdat(C);
-
-  if (RD->hasAttr<DLLExportAttr>())
-    VFTable->setDLLStorageClass(llvm::GlobalValue::DLLExportStorageClass);
-
-  VFTablesMap[ID] = VFTable;
-  return VTable;
-}
-
-CGCallee MicrosoftCXXABI::getVirtualFunctionPointer(CodeGenFunction &CGF,
-                                                    GlobalDecl GD,
-                                                    Address This,
-                                                    llvm::Type *Ty,
-                                                    SourceLocation Loc) {
-  CGBuilderTy &Builder = CGF.Builder;
-
-  Ty = Ty->getPointerTo()->getPointerTo();
-  Address VPtr =
-      adjustThisArgumentForVirtualFunctionCall(CGF, GD, This, true);
-
-  auto *MethodDecl = cast<CXXMethodDecl>(GD.getDecl());
-  llvm::Value *VTable = CGF.GetVTablePtr(VPtr, Ty, MethodDecl->getParent());
-
-  MicrosoftVTableContext &VFTContext = CGM.getMicrosoftVTableContext();
-  MethodVFTableLocation ML = VFTContext.getMethodVFTableLocation(GD);
-
-  // Compute the identity of the most derived class whose virtual table is
-  // located at the MethodVFTableLocation ML.
-  auto getObjectWithVPtr = [&] {
-    return llvm::find_if(VFTContext.getVFPtrOffsets(
-                             ML.VBase ? ML.VBase : MethodDecl->getParent()),
-                         [&](const std::unique_ptr<VPtrInfo> &Info) {
-                           return Info->FullOffsetInMDC == ML.VFPtrOffset;
-                         })
-        ->get()
-        ->ObjectWithVPtr;
-  };
-
-  llvm::Value *VFunc;
-  if (CGF.ShouldEmitVTableTypeCheckedLoad(MethodDecl->getParent())) {
-    VFunc = CGF.EmitVTableTypeCheckedLoad(
-        getObjectWithVPtr(), VTable,
-        ML.Index * CGM.getContext().getTargetInfo().getPointerWidth(0) / 8);
-  } else {
-    if (CGM.getCodeGenOpts().PrepareForLTO)
-      CGF.EmitTypeMetadataCodeForVCall(getObjectWithVPtr(), VTable, Loc);
-
-    llvm::Value *VFuncPtr =
-        Builder.CreateConstInBoundsGEP1_64(VTable, ML.Index, "vfn");
-    VFunc = Builder.CreateAlignedLoad(VFuncPtr, CGF.getPointerAlign());
-  }
-
-  CGCallee Callee(GD, VFunc);
-  return Callee;
-}
-
-llvm::Value *MicrosoftCXXABI::EmitVirtualDestructorCall(
-    CodeGenFunction &CGF, const CXXDestructorDecl *Dtor, CXXDtorType DtorType,
-    Address This, const CXXMemberCallExpr *CE) {
-  assert(CE == nullptr || CE->arg_begin() == CE->arg_end());
-  assert(DtorType == Dtor_Deleting || DtorType == Dtor_Complete);
-
-  // We have only one destructor in the vftable but can get both behaviors
-  // by passing an implicit int parameter.
-  GlobalDecl GD(Dtor, Dtor_Deleting);
-  const CGFunctionInfo *FInfo = &CGM.getTypes().arrangeCXXStructorDeclaration(
-      Dtor, StructorType::Deleting);
-  llvm::FunctionType *Ty = CGF.CGM.getTypes().GetFunctionType(*FInfo);
-  CGCallee Callee = CGCallee::forVirtual(CE, GD, This, Ty);
-
-  ASTContext &Context = getContext();
-  llvm::Value *ImplicitParam = llvm::ConstantInt::get(
-      llvm::IntegerType::getInt32Ty(CGF.getLLVMContext()),
-      DtorType == Dtor_Deleting);
-
-  This = adjustThisArgumentForVirtualFunctionCall(CGF, GD, This, true);
-  RValue RV =
-      CGF.EmitCXXDestructorCall(Dtor, Callee, This.getPointer(), ImplicitParam,
-                                Context.IntTy, CE, StructorType::Deleting);
-  return RV.getScalarVal();
-}
-
-const VBTableGlobals &
-MicrosoftCXXABI::enumerateVBTables(const CXXRecordDecl *RD) {
-  // At this layer, we can key the cache off of a single class, which is much
-  // easier than caching each vbtable individually.
-  llvm::DenseMap<const CXXRecordDecl*, VBTableGlobals>::iterator Entry;
-  bool Added;
-  std::tie(Entry, Added) =
-      VBTablesMap.insert(std::make_pair(RD, VBTableGlobals()));
-  VBTableGlobals &VBGlobals = Entry->second;
-  if (!Added)
-    return VBGlobals;
-
-  MicrosoftVTableContext &Context = CGM.getMicrosoftVTableContext();
-  VBGlobals.VBTables = &Context.enumerateVBTables(RD);
-
-  // Cache the globals for all vbtables so we don't have to recompute the
-  // mangled names.
-  llvm::GlobalVariable::LinkageTypes Linkage = CGM.getVTableLinkage(RD);
-  for (VPtrInfoVector::const_iterator I = VBGlobals.VBTables->begin(),
-                                      E = VBGlobals.VBTables->end();
-       I != E; ++I) {
-    VBGlobals.Globals.push_back(getAddrOfVBTable(**I, RD, Linkage));
-  }
-
-  return VBGlobals;
-}
-
-llvm::Function *
-MicrosoftCXXABI::EmitVirtualMemPtrThunk(const CXXMethodDecl *MD,
-                                        const MethodVFTableLocation &ML) {
-  assert(!isa<CXXConstructorDecl>(MD) && !isa<CXXDestructorDecl>(MD) &&
-         "can't form pointers to ctors or virtual dtors");
-
-  // Calculate the mangled name.
-  SmallString<256> ThunkName;
-  llvm::raw_svector_ostream Out(ThunkName);
-  getMangleContext().mangleVirtualMemPtrThunk(MD, ML, Out);
-
-  // If the thunk has been generated previously, just return it.
-  if (llvm::GlobalValue *GV = CGM.getModule().getNamedValue(ThunkName))
-    return cast<llvm::Function>(GV);
-
-  // Create the llvm::Function.
-  const CGFunctionInfo &FnInfo =
-      CGM.getTypes().arrangeUnprototypedMustTailThunk(MD);
-  llvm::FunctionType *ThunkTy = CGM.getTypes().GetFunctionType(FnInfo);
-  llvm::Function *ThunkFn =
-      llvm::Function::Create(ThunkTy, llvm::Function::ExternalLinkage,
-                             ThunkName.str(), &CGM.getModule());
-  assert(ThunkFn->getName() == ThunkName && "name was uniqued!");
-
-  ThunkFn->setLinkage(MD->isExternallyVisible()
-                          ? llvm::GlobalValue::LinkOnceODRLinkage
-                          : llvm::GlobalValue::InternalLinkage);
-  if (MD->isExternallyVisible())
-    ThunkFn->setComdat(CGM.getModule().getOrInsertComdat(ThunkFn->getName()));
-
-  CGM.SetLLVMFunctionAttributes(MD, FnInfo, ThunkFn);
-  CGM.SetLLVMFunctionAttributesForDefinition(MD, ThunkFn);
-
-  // Add the "thunk" attribute so that LLVM knows that the return type is
-  // meaningless. These thunks can be used to call functions with differing
-  // return types, and the caller is required to cast the prototype
-  // appropriately to extract the correct value.
-  ThunkFn->addFnAttr("thunk");
-
-  // These thunks can be compared, so they are not unnamed.
-  ThunkFn->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::None);
-
-  // Start codegen.
-  CodeGenFunction CGF(CGM);
-  CGF.CurGD = GlobalDecl(MD);
-  CGF.CurFuncIsThunk = true;
-
-  // Build FunctionArgs, but only include the implicit 'this' parameter
-  // declaration.
-  FunctionArgList FunctionArgs;
-  buildThisParam(CGF, FunctionArgs);
-
-  // Start defining the function.
-  CGF.StartFunction(GlobalDecl(), FnInfo.getReturnType(), ThunkFn, FnInfo,
-                    FunctionArgs, MD->getLocation(), SourceLocation());
-  setCXXABIThisValue(CGF, loadIncomingCXXThis(CGF));
-
-  // Load the vfptr and then callee from the vftable.  The callee should have
-  // adjusted 'this' so that the vfptr is at offset zero.
-  llvm::Value *VTable = CGF.GetVTablePtr(
-      getThisAddress(CGF), ThunkTy->getPointerTo()->getPointerTo(), MD->getParent());
-
-  llvm::Value *VFuncPtr =
-      CGF.Builder.CreateConstInBoundsGEP1_64(VTable, ML.Index, "vfn");
-  llvm::Value *Callee =
-    CGF.Builder.CreateAlignedLoad(VFuncPtr, CGF.getPointerAlign());
-
-  CGF.EmitMustTailThunk(MD, getThisValue(CGF), Callee);
-
-  return ThunkFn;
-}
-
-void MicrosoftCXXABI::emitVirtualInheritanceTables(const CXXRecordDecl *RD) {
-  const VBTableGlobals &VBGlobals = enumerateVBTables(RD);
-  for (unsigned I = 0, E = VBGlobals.VBTables->size(); I != E; ++I) {
-    const std::unique_ptr<VPtrInfo>& VBT = (*VBGlobals.VBTables)[I];
-    llvm::GlobalVariable *GV = VBGlobals.Globals[I];
-    if (GV->isDeclaration())
-      emitVBTableDefinition(*VBT, RD, GV);
-  }
-}
-
-llvm::GlobalVariable *
-MicrosoftCXXABI::getAddrOfVBTable(const VPtrInfo &VBT, const CXXRecordDecl *RD,
-                                  llvm::GlobalVariable::LinkageTypes Linkage) {
-  SmallString<256> OutName;
-  llvm::raw_svector_ostream Out(OutName);
-  getMangleContext().mangleCXXVBTable(RD, VBT.MangledPath, Out);
-  StringRef Name = OutName.str();
-
-  llvm::ArrayType *VBTableType =
-      llvm::ArrayType::get(CGM.IntTy, 1 + VBT.ObjectWithVPtr->getNumVBases());
-
-  assert(!CGM.getModule().getNamedGlobal(Name) &&
-         "vbtable with this name already exists: mangling bug?");
-  CharUnits Alignment =
-      CGM.getContext().getTypeAlignInChars(CGM.getContext().IntTy);
-  llvm::GlobalVariable *GV = CGM.CreateOrReplaceCXXRuntimeVariable(
-      Name, VBTableType, Linkage, Alignment.getQuantity());
-  GV->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-
-  if (RD->hasAttr<DLLImportAttr>())
-    GV->setDLLStorageClass(llvm::GlobalValue::DLLImportStorageClass);
-  else if (RD->hasAttr<DLLExportAttr>())
-    GV->setDLLStorageClass(llvm::GlobalValue::DLLExportStorageClass);
-
-  if (!GV->hasExternalLinkage())
-    emitVBTableDefinition(VBT, RD, GV);
-
-  return GV;
-}
-
-void MicrosoftCXXABI::emitVBTableDefinition(const VPtrInfo &VBT,
-                                            const CXXRecordDecl *RD,
-                                            llvm::GlobalVariable *GV) const {
-  const CXXRecordDecl *ObjectWithVPtr = VBT.ObjectWithVPtr;
-
-  assert(RD->getNumVBases() && ObjectWithVPtr->getNumVBases() &&
-         "should only emit vbtables for classes with vbtables");
-
-  const ASTRecordLayout &BaseLayout =
-      getContext().getASTRecordLayout(VBT.IntroducingObject);
-  const ASTRecordLayout &DerivedLayout = getContext().getASTRecordLayout(RD);
-
-  SmallVector<llvm::Constant *, 4> Offsets(1 + ObjectWithVPtr->getNumVBases(),
-                                           nullptr);
-
-  // The offset from ObjectWithVPtr's vbptr to itself always leads.
-  CharUnits VBPtrOffset = BaseLayout.getVBPtrOffset();
-  Offsets[0] = llvm::ConstantInt::get(CGM.IntTy, -VBPtrOffset.getQuantity());
-
-  MicrosoftVTableContext &Context = CGM.getMicrosoftVTableContext();
-  for (const auto &I : ObjectWithVPtr->vbases()) {
-    const CXXRecordDecl *VBase = I.getType()->getAsCXXRecordDecl();
-    CharUnits Offset = DerivedLayout.getVBaseClassOffset(VBase);
-    assert(!Offset.isNegative());
-
-    // Make it relative to the subobject vbptr.
-    CharUnits CompleteVBPtrOffset = VBT.NonVirtualOffset + VBPtrOffset;
-    if (VBT.getVBaseWithVPtr())
-      CompleteVBPtrOffset +=
-          DerivedLayout.getVBaseClassOffset(VBT.getVBaseWithVPtr());
-    Offset -= CompleteVBPtrOffset;
-
-    unsigned VBIndex = Context.getVBTableIndex(ObjectWithVPtr, VBase);
-    assert(Offsets[VBIndex] == nullptr && "The same vbindex seen twice?");
-    Offsets[VBIndex] = llvm::ConstantInt::get(CGM.IntTy, Offset.getQuantity());
-  }
-
-  assert(Offsets.size() ==
-         cast<llvm::ArrayType>(cast<llvm::PointerType>(GV->getType())
-                               ->getElementType())->getNumElements());
-  llvm::ArrayType *VBTableType =
-    llvm::ArrayType::get(CGM.IntTy, Offsets.size());
-  llvm::Constant *Init = llvm::ConstantArray::get(VBTableType, Offsets);
-  GV->setInitializer(Init);
-
-  if (RD->hasAttr<DLLImportAttr>())
-    GV->setLinkage(llvm::GlobalVariable::AvailableExternallyLinkage);
-}
-
-llvm::Value *MicrosoftCXXABI::performThisAdjustment(CodeGenFunction &CGF,
-                                                    Address This,
-                                                    const ThisAdjustment &TA) {
-  if (TA.isEmpty())
-    return This.getPointer();
-
-  This = CGF.Builder.CreateElementBitCast(This, CGF.Int8Ty);
-
-  llvm::Value *V;
-  if (TA.Virtual.isEmpty()) {
-    V = This.getPointer();
-  } else {
-    assert(TA.Virtual.Microsoft.VtordispOffset < 0);
-    // Adjust the this argument based on the vtordisp value.
-    Address VtorDispPtr =
-        CGF.Builder.CreateConstInBoundsByteGEP(This,
-                 CharUnits::fromQuantity(TA.Virtual.Microsoft.VtordispOffset));
-    VtorDispPtr = CGF.Builder.CreateElementBitCast(VtorDispPtr, CGF.Int32Ty);
-    llvm::Value *VtorDisp = CGF.Builder.CreateLoad(VtorDispPtr, "vtordisp");
-    V = CGF.Builder.CreateGEP(This.getPointer(),
-                              CGF.Builder.CreateNeg(VtorDisp));
-
-    // Unfortunately, having applied the vtordisp means that we no
-    // longer really have a known alignment for the vbptr step.
-    // We'll assume the vbptr is pointer-aligned.
-
-    if (TA.Virtual.Microsoft.VBPtrOffset) {
-      // If the final overrider is defined in a virtual base other than the one
-      // that holds the vfptr, we have to use a vtordispex thunk which looks up
-      // the vbtable of the derived class.
-      assert(TA.Virtual.Microsoft.VBPtrOffset > 0);
-      assert(TA.Virtual.Microsoft.VBOffsetOffset >= 0);
-      llvm::Value *VBPtr;
-      llvm::Value *VBaseOffset =
-          GetVBaseOffsetFromVBPtr(CGF, Address(V, CGF.getPointerAlign()),
-                                  -TA.Virtual.Microsoft.VBPtrOffset,
-                                  TA.Virtual.Microsoft.VBOffsetOffset, &VBPtr);
-      V = CGF.Builder.CreateInBoundsGEP(VBPtr, VBaseOffset);
-    }
-  }
-
-  if (TA.NonVirtual) {
-    // Non-virtual adjustment might result in a pointer outside the allocated
-    // object, e.g. if the final overrider class is laid out after the virtual
-    // base that declares a method in the most derived class.
-    V = CGF.Builder.CreateConstGEP1_32(V, TA.NonVirtual);
-  }
-
-  // Don't need to bitcast back, the call CodeGen will handle this.
-  return V;
-}
-
-llvm::Value *
-MicrosoftCXXABI::performReturnAdjustment(CodeGenFunction &CGF, Address Ret,
-                                         const ReturnAdjustment &RA) {
-  if (RA.isEmpty())
-    return Ret.getPointer();
-
-  auto OrigTy = Ret.getType();
-  Ret = CGF.Builder.CreateElementBitCast(Ret, CGF.Int8Ty);
-
-  llvm::Value *V = Ret.getPointer();
-  if (RA.Virtual.Microsoft.VBIndex) {
-    assert(RA.Virtual.Microsoft.VBIndex > 0);
-    int32_t IntSize = CGF.getIntSize().getQuantity();
-    llvm::Value *VBPtr;
-    llvm::Value *VBaseOffset =
-        GetVBaseOffsetFromVBPtr(CGF, Ret, RA.Virtual.Microsoft.VBPtrOffset,
-                                IntSize * RA.Virtual.Microsoft.VBIndex, &VBPtr);
-    V = CGF.Builder.CreateInBoundsGEP(VBPtr, VBaseOffset);
-  }
-
-  if (RA.NonVirtual)
-    V = CGF.Builder.CreateConstInBoundsGEP1_32(CGF.Int8Ty, V, RA.NonVirtual);
-
-  // Cast back to the original type.
-  return CGF.Builder.CreateBitCast(V, OrigTy);
-}
-
-bool MicrosoftCXXABI::requiresArrayCookie(const CXXDeleteExpr *expr,
-                                   QualType elementType) {
-  // Microsoft seems to completely ignore the possibility of a
-  // two-argument usual deallocation function.
-  return elementType.isDestructedType();
-}
-
-bool MicrosoftCXXABI::requiresArrayCookie(const CXXNewExpr *expr) {
-  // Microsoft seems to completely ignore the possibility of a
-  // two-argument usual deallocation function.
-  return expr->getAllocatedType().isDestructedType();
-}
-
-CharUnits MicrosoftCXXABI::getArrayCookieSizeImpl(QualType type) {
-  // The array cookie is always a size_t; we then pad that out to the
-  // alignment of the element type.
-  ASTContext &Ctx = getContext();
-  return std::max(Ctx.getTypeSizeInChars(Ctx.getSizeType()),
-                  Ctx.getTypeAlignInChars(type));
-}
-
-llvm::Value *MicrosoftCXXABI::readArrayCookieImpl(CodeGenFunction &CGF,
-                                                  Address allocPtr,
-                                                  CharUnits cookieSize) {
-  Address numElementsPtr =
-    CGF.Builder.CreateElementBitCast(allocPtr, CGF.SizeTy);
-  return CGF.Builder.CreateLoad(numElementsPtr);
-}
-
-Address MicrosoftCXXABI::InitializeArrayCookie(CodeGenFunction &CGF,
-                                               Address newPtr,
-                                               llvm::Value *numElements,
-                                               const CXXNewExpr *expr,
-                                               QualType elementType) {
-  assert(requiresArrayCookie(expr));
-
-  // The size of the cookie.
-  CharUnits cookieSize = getArrayCookieSizeImpl(elementType);
-
-  // Compute an offset to the cookie.
-  Address cookiePtr = newPtr;
-
-  // Write the number of elements into the appropriate slot.
-  Address numElementsPtr
-    = CGF.Builder.CreateElementBitCast(cookiePtr, CGF.SizeTy);
-  CGF.Builder.CreateStore(numElements, numElementsPtr);
-
-  // Finally, compute a pointer to the actual data buffer by skipping
-  // over the cookie completely.
-  return CGF.Builder.CreateConstInBoundsByteGEP(newPtr, cookieSize);
-}
-
-static void emitGlobalDtorWithTLRegDtor(CodeGenFunction &CGF, const VarDecl &VD,
-                                        llvm::Constant *Dtor,
-                                        llvm::Constant *Addr) {
-  // Create a function which calls the destructor.
-  llvm::Constant *DtorStub = CGF.createAtExitStub(VD, Dtor, Addr);
-
-  // extern "C" int __tlregdtor(void (*f)(void));
-  llvm::FunctionType *TLRegDtorTy = llvm::FunctionType::get(
-      CGF.IntTy, DtorStub->getType(), /*IsVarArg=*/false);
-
-  llvm::Constant *TLRegDtor = CGF.CGM.CreateRuntimeFunction(
-      TLRegDtorTy, "__tlregdtor", llvm::AttributeList(), /*Local=*/true);
-  if (llvm::Function *TLRegDtorFn = dyn_cast<llvm::Function>(TLRegDtor))
-    TLRegDtorFn->setDoesNotThrow();
-
-  CGF.EmitNounwindRuntimeCall(TLRegDtor, DtorStub);
-}
-
-void MicrosoftCXXABI::registerGlobalDtor(CodeGenFunction &CGF, const VarDecl &D,
-                                         llvm::Constant *Dtor,
-                                         llvm::Constant *Addr) {
-  if (D.isNoDestroy(CGM.getContext()))
-    return;
-
-  if (D.getTLSKind())
-    return emitGlobalDtorWithTLRegDtor(CGF, D, Dtor, Addr);
-
-  // The default behavior is to use atexit.
-  CGF.registerGlobalDtorWithAtExit(D, Dtor, Addr);
-}
-
-void MicrosoftCXXABI::EmitThreadLocalInitFuncs(
-    CodeGenModule &CGM, ArrayRef<const VarDecl *> CXXThreadLocals,
-    ArrayRef<llvm::Function *> CXXThreadLocalInits,
-    ArrayRef<const VarDecl *> CXXThreadLocalInitVars) {
-  if (CXXThreadLocalInits.empty())
-    return;
-
-  CGM.AppendLinkerOptions(CGM.getTarget().getTriple().getArch() ==
-                                  llvm::Triple::x86
-                              ? "/include:___dyn_tls_init@12"
-                              : "/include:__dyn_tls_init");
-
-  // This will create a GV in the .CRT$XDU section.  It will point to our
-  // initialization function.  The CRT will call all of these function
-  // pointers at start-up time and, eventually, at thread-creation time.
-  auto AddToXDU = [&CGM](llvm::Function *InitFunc) {
-    llvm::GlobalVariable *InitFuncPtr = new llvm::GlobalVariable(
-        CGM.getModule(), InitFunc->getType(), /*IsConstant=*/true,
-        llvm::GlobalVariable::InternalLinkage, InitFunc,
-        Twine(InitFunc->getName(), "$initializer$"));
-    InitFuncPtr->setSection(".CRT$XDU");
-    // This variable has discardable linkage, we have to add it to @llvm.used to
-    // ensure it won't get discarded.
-    CGM.addUsedGlobal(InitFuncPtr);
-    return InitFuncPtr;
-  };
-
-  std::vector<llvm::Function *> NonComdatInits;
-  for (size_t I = 0, E = CXXThreadLocalInitVars.size(); I != E; ++I) {
-    llvm::GlobalVariable *GV = cast<llvm::GlobalVariable>(
-        CGM.GetGlobalValue(CGM.getMangledName(CXXThreadLocalInitVars[I])));
-    llvm::Function *F = CXXThreadLocalInits[I];
-
-    // If the GV is already in a comdat group, then we have to join it.
-    if (llvm::Comdat *C = GV->getComdat())
-      AddToXDU(F)->setComdat(C);
-    else
-      NonComdatInits.push_back(F);
-  }
-
-  if (!NonComdatInits.empty()) {
-    llvm::FunctionType *FTy =
-        llvm::FunctionType::get(CGM.VoidTy, /*isVarArg=*/false);
-    llvm::Function *InitFunc = CGM.CreateGlobalInitOrDestructFunction(
-        FTy, "__tls_init", CGM.getTypes().arrangeNullaryFunction(),
-        SourceLocation(), /*TLS=*/true);
-    CodeGenFunction(CGM).GenerateCXXGlobalInitFunc(InitFunc, NonComdatInits);
-
-    AddToXDU(InitFunc);
-  }
-}
-
-LValue MicrosoftCXXABI::EmitThreadLocalVarDeclLValue(CodeGenFunction &CGF,
-                                                     const VarDecl *VD,
-                                                     QualType LValType) {
-  CGF.CGM.ErrorUnsupported(VD, "thread wrappers");
-  return LValue();
-}
-
-static ConstantAddress getInitThreadEpochPtr(CodeGenModule &CGM) {
-  StringRef VarName("_Init_thread_epoch");
-  CharUnits Align = CGM.getIntAlign();
-  if (auto *GV = CGM.getModule().getNamedGlobal(VarName))
-    return ConstantAddress(GV, Align);
-  auto *GV = new llvm::GlobalVariable(
-      CGM.getModule(), CGM.IntTy,
-      /*Constant=*/false, llvm::GlobalVariable::ExternalLinkage,
-      /*Initializer=*/nullptr, VarName,
-      /*InsertBefore=*/nullptr, llvm::GlobalVariable::GeneralDynamicTLSModel);
-  GV->setAlignment(Align.getQuantity());
-  return ConstantAddress(GV, Align);
-}
-
-static llvm::Constant *getInitThreadHeaderFn(CodeGenModule &CGM) {
-  llvm::FunctionType *FTy =
-      llvm::FunctionType::get(llvm::Type::getVoidTy(CGM.getLLVMContext()),
-                              CGM.IntTy->getPointerTo(), /*isVarArg=*/false);
-  return CGM.CreateRuntimeFunction(
-      FTy, "_Init_thread_header",
-      llvm::AttributeList::get(CGM.getLLVMContext(),
-                               llvm::AttributeList::FunctionIndex,
-                               llvm::Attribute::NoUnwind),
-      /*Local=*/true);
-}
-
-static llvm::Constant *getInitThreadFooterFn(CodeGenModule &CGM) {
-  llvm::FunctionType *FTy =
-      llvm::FunctionType::get(llvm::Type::getVoidTy(CGM.getLLVMContext()),
-                              CGM.IntTy->getPointerTo(), /*isVarArg=*/false);
-  return CGM.CreateRuntimeFunction(
-      FTy, "_Init_thread_footer",
-      llvm::AttributeList::get(CGM.getLLVMContext(),
-                               llvm::AttributeList::FunctionIndex,
-                               llvm::Attribute::NoUnwind),
-      /*Local=*/true);
-}
-
-static llvm::Constant *getInitThreadAbortFn(CodeGenModule &CGM) {
-  llvm::FunctionType *FTy =
-      llvm::FunctionType::get(llvm::Type::getVoidTy(CGM.getLLVMContext()),
-                              CGM.IntTy->getPointerTo(), /*isVarArg=*/false);
-  return CGM.CreateRuntimeFunction(
-      FTy, "_Init_thread_abort",
-      llvm::AttributeList::get(CGM.getLLVMContext(),
-                               llvm::AttributeList::FunctionIndex,
-                               llvm::Attribute::NoUnwind),
-      /*Local=*/true);
-}
-
-namespace {
-struct ResetGuardBit final : EHScopeStack::Cleanup {
-  Address Guard;
-  unsigned GuardNum;
-  ResetGuardBit(Address Guard, unsigned GuardNum)
-      : Guard(Guard), GuardNum(GuardNum) {}
-
-  void Emit(CodeGenFunction &CGF, Flags flags) override {
-    // Reset the bit in the mask so that the static variable may be
-    // reinitialized.
-    CGBuilderTy &Builder = CGF.Builder;
-    llvm::LoadInst *LI = Builder.CreateLoad(Guard);
-    llvm::ConstantInt *Mask =
-        llvm::ConstantInt::get(CGF.IntTy, ~(1ULL << GuardNum));
-    Builder.CreateStore(Builder.CreateAnd(LI, Mask), Guard);
-  }
-};
-
-struct CallInitThreadAbort final : EHScopeStack::Cleanup {
-  llvm::Value *Guard;
-  CallInitThreadAbort(Address Guard) : Guard(Guard.getPointer()) {}
-
-  void Emit(CodeGenFunction &CGF, Flags flags) override {
-    // Calling _Init_thread_abort will reset the guard's state.
-    CGF.EmitNounwindRuntimeCall(getInitThreadAbortFn(CGF.CGM), Guard);
-  }
-};
-}
-
-void MicrosoftCXXABI::EmitGuardedInit(CodeGenFunction &CGF, const VarDecl &D,
-                                      llvm::GlobalVariable *GV,
-                                      bool PerformInit) {
-  // MSVC only uses guards for static locals.
-  if (!D.isStaticLocal()) {
-    assert(GV->hasWeakLinkage() || GV->hasLinkOnceLinkage());
-    // GlobalOpt is allowed to discard the initializer, so use linkonce_odr.
-    llvm::Function *F = CGF.CurFn;
-    F->setLinkage(llvm::GlobalValue::LinkOnceODRLinkage);
-    F->setComdat(CGM.getModule().getOrInsertComdat(F->getName()));
-    CGF.EmitCXXGlobalVarDeclInit(D, GV, PerformInit);
-    return;
-  }
-
-  bool ThreadlocalStatic = D.getTLSKind();
-  bool ThreadsafeStatic = getContext().getLangOpts().ThreadsafeStatics;
-
-  // Thread-safe static variables which aren't thread-specific have a
-  // per-variable guard.
-  bool HasPerVariableGuard = ThreadsafeStatic && !ThreadlocalStatic;
-
-  CGBuilderTy &Builder = CGF.Builder;
-  llvm::IntegerType *GuardTy = CGF.Int32Ty;
-  llvm::ConstantInt *Zero = llvm::ConstantInt::get(GuardTy, 0);
-  CharUnits GuardAlign = CharUnits::fromQuantity(4);
-
-  // Get the guard variable for this function if we have one already.
-  GuardInfo *GI = nullptr;
-  if (ThreadlocalStatic)
-    GI = &ThreadLocalGuardVariableMap[D.getDeclContext()];
-  else if (!ThreadsafeStatic)
-    GI = &GuardVariableMap[D.getDeclContext()];
-
-  llvm::GlobalVariable *GuardVar = GI ? GI->Guard : nullptr;
-  unsigned GuardNum;
-  if (D.isExternallyVisible()) {
-    // Externally visible variables have to be numbered in Sema to properly
-    // handle unreachable VarDecls.
-    GuardNum = getContext().getStaticLocalNumber(&D);
-    assert(GuardNum > 0);
-    GuardNum--;
-  } else if (HasPerVariableGuard) {
-    GuardNum = ThreadSafeGuardNumMap[D.getDeclContext()]++;
-  } else {
-    // Non-externally visible variables are numbered here in CodeGen.
-    GuardNum = GI->BitIndex++;
-  }
-
-  if (!HasPerVariableGuard && GuardNum >= 32) {
-    if (D.isExternallyVisible())
-      ErrorUnsupportedABI(CGF, "more than 32 guarded initializations");
-    GuardNum %= 32;
-    GuardVar = nullptr;
-  }
-
-  if (!GuardVar) {
-    // Mangle the name for the guard.
-    SmallString<256> GuardName;
-    {
-      llvm::raw_svector_ostream Out(GuardName);
-      if (HasPerVariableGuard)
-        getMangleContext().mangleThreadSafeStaticGuardVariable(&D, GuardNum,
-                                                               Out);
-      else
-        getMangleContext().mangleStaticGuardVariable(&D, Out);
-    }
-
-    // Create the guard variable with a zero-initializer. Just absorb linkage,
-    // visibility and dll storage class from the guarded variable.
-    GuardVar =
-        new llvm::GlobalVariable(CGM.getModule(), GuardTy, /*isConstant=*/false,
-                                 GV->getLinkage(), Zero, GuardName.str());
-    GuardVar->setVisibility(GV->getVisibility());
-    GuardVar->setDLLStorageClass(GV->getDLLStorageClass());
-    GuardVar->setAlignment(GuardAlign.getQuantity());
-    if (GuardVar->isWeakForLinker())
-      GuardVar->setComdat(
-          CGM.getModule().getOrInsertComdat(GuardVar->getName()));
-    if (D.getTLSKind())
-      GuardVar->setThreadLocal(true);
-    if (GI && !HasPerVariableGuard)
-      GI->Guard = GuardVar;
-  }
-
-  ConstantAddress GuardAddr(GuardVar, GuardAlign);
-
-  assert(GuardVar->getLinkage() == GV->getLinkage() &&
-         "static local from the same function had different linkage");
-
-  if (!HasPerVariableGuard) {
-    // Pseudo code for the test:
-    // if (!(GuardVar & MyGuardBit)) {
-    //   GuardVar |= MyGuardBit;
-    //   ... initialize the object ...;
-    // }
-
-    // Test our bit from the guard variable.
-    llvm::ConstantInt *Bit = llvm::ConstantInt::get(GuardTy, 1ULL << GuardNum);
-    llvm::LoadInst *LI = Builder.CreateLoad(GuardAddr);
-    llvm::Value *NeedsInit =
-        Builder.CreateICmpEQ(Builder.CreateAnd(LI, Bit), Zero);
-    llvm::BasicBlock *InitBlock = CGF.createBasicBlock("init");
-    llvm::BasicBlock *EndBlock = CGF.createBasicBlock("init.end");
-    CGF.EmitCXXGuardedInitBranch(NeedsInit, InitBlock, EndBlock,
-                                 CodeGenFunction::GuardKind::VariableGuard, &D);
-
-    // Set our bit in the guard variable and emit the initializer and add a global
-    // destructor if appropriate.
-    CGF.EmitBlock(InitBlock);
-    Builder.CreateStore(Builder.CreateOr(LI, Bit), GuardAddr);
-    CGF.EHStack.pushCleanup<ResetGuardBit>(EHCleanup, GuardAddr, GuardNum);
-    CGF.EmitCXXGlobalVarDeclInit(D, GV, PerformInit);
-    CGF.PopCleanupBlock();
-    Builder.CreateBr(EndBlock);
-
-    // Continue.
-    CGF.EmitBlock(EndBlock);
-  } else {
-    // Pseudo code for the test:
-    // if (TSS > _Init_thread_epoch) {
-    //   _Init_thread_header(&TSS);
-    //   if (TSS == -1) {
-    //     ... initialize the object ...;
-    //     _Init_thread_footer(&TSS);
-    //   }
-    // }
-    //
-    // The algorithm is almost identical to what can be found in the appendix
-    // found in N2325.
-
-    // This BasicBLock determines whether or not we have any work to do.
-    llvm::LoadInst *FirstGuardLoad = Builder.CreateLoad(GuardAddr);
-    FirstGuardLoad->setOrdering(llvm::AtomicOrdering::Unordered);
-    llvm::LoadInst *InitThreadEpoch =
-        Builder.CreateLoad(getInitThreadEpochPtr(CGM));
-    llvm::Value *IsUninitialized =
-        Builder.CreateICmpSGT(FirstGuardLoad, InitThreadEpoch);
-    llvm::BasicBlock *AttemptInitBlock = CGF.createBasicBlock("init.attempt");
-    llvm::BasicBlock *EndBlock = CGF.createBasicBlock("init.end");
-    CGF.EmitCXXGuardedInitBranch(IsUninitialized, AttemptInitBlock, EndBlock,
-                                 CodeGenFunction::GuardKind::VariableGuard, &D);
-
-    // This BasicBlock attempts to determine whether or not this thread is
-    // responsible for doing the initialization.
-    CGF.EmitBlock(AttemptInitBlock);
-    CGF.EmitNounwindRuntimeCall(getInitThreadHeaderFn(CGM),
-                                GuardAddr.getPointer());
-    llvm::LoadInst *SecondGuardLoad = Builder.CreateLoad(GuardAddr);
-    SecondGuardLoad->setOrdering(llvm::AtomicOrdering::Unordered);
-    llvm::Value *ShouldDoInit =
-        Builder.CreateICmpEQ(SecondGuardLoad, getAllOnesInt());
-    llvm::BasicBlock *InitBlock = CGF.createBasicBlock("init");
-    Builder.CreateCondBr(ShouldDoInit, InitBlock, EndBlock);
-
-    // Ok, we ended up getting selected as the initializing thread.
-    CGF.EmitBlock(InitBlock);
-    CGF.EHStack.pushCleanup<CallInitThreadAbort>(EHCleanup, GuardAddr);
-    CGF.EmitCXXGlobalVarDeclInit(D, GV, PerformInit);
-    CGF.PopCleanupBlock();
-    CGF.EmitNounwindRuntimeCall(getInitThreadFooterFn(CGM),
-                                GuardAddr.getPointer());
-    Builder.CreateBr(EndBlock);
-
-    CGF.EmitBlock(EndBlock);
-  }
-}
-
-bool MicrosoftCXXABI::isZeroInitializable(const MemberPointerType *MPT) {
-  // Null-ness for function memptrs only depends on the first field, which is
-  // the function pointer.  The rest don't matter, so we can zero initialize.
-  if (MPT->isMemberFunctionPointer())
-    return true;
-
-  // The virtual base adjustment field is always -1 for null, so if we have one
-  // we can't zero initialize.  The field offset is sometimes also -1 if 0 is a
-  // valid field offset.
-  const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl();
-  MSInheritanceAttr::Spelling Inheritance = RD->getMSInheritanceModel();
-  return (!MSInheritanceAttr::hasVBTableOffsetField(Inheritance) &&
-          RD->nullFieldOffsetIsZero());
-}
-
-llvm::Type *
-MicrosoftCXXABI::ConvertMemberPointerType(const MemberPointerType *MPT) {
-  const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl();
-  MSInheritanceAttr::Spelling Inheritance = RD->getMSInheritanceModel();
-  llvm::SmallVector<llvm::Type *, 4> fields;
-  if (MPT->isMemberFunctionPointer())
-    fields.push_back(CGM.VoidPtrTy);  // FunctionPointerOrVirtualThunk
-  else
-    fields.push_back(CGM.IntTy);  // FieldOffset
-
-  if (MSInheritanceAttr::hasNVOffsetField(MPT->isMemberFunctionPointer(),
-                                          Inheritance))
-    fields.push_back(CGM.IntTy);
-  if (MSInheritanceAttr::hasVBPtrOffsetField(Inheritance))
-    fields.push_back(CGM.IntTy);
-  if (MSInheritanceAttr::hasVBTableOffsetField(Inheritance))
-    fields.push_back(CGM.IntTy);  // VirtualBaseAdjustmentOffset
-
-  if (fields.size() == 1)
-    return fields[0];
-  return llvm::StructType::get(CGM.getLLVMContext(), fields);
-}
-
-void MicrosoftCXXABI::
-GetNullMemberPointerFields(const MemberPointerType *MPT,
-                           llvm::SmallVectorImpl<llvm::Constant *> &fields) {
-  assert(fields.empty());
-  const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl();
-  MSInheritanceAttr::Spelling Inheritance = RD->getMSInheritanceModel();
-  if (MPT->isMemberFunctionPointer()) {
-    // FunctionPointerOrVirtualThunk
-    fields.push_back(llvm::Constant::getNullValue(CGM.VoidPtrTy));
-  } else {
-    if (RD->nullFieldOffsetIsZero())
-      fields.push_back(getZeroInt());  // FieldOffset
-    else
-      fields.push_back(getAllOnesInt());  // FieldOffset
-  }
-
-  if (MSInheritanceAttr::hasNVOffsetField(MPT->isMemberFunctionPointer(),
-                                          Inheritance))
-    fields.push_back(getZeroInt());
-  if (MSInheritanceAttr::hasVBPtrOffsetField(Inheritance))
-    fields.push_back(getZeroInt());
-  if (MSInheritanceAttr::hasVBTableOffsetField(Inheritance))
-    fields.push_back(getAllOnesInt());
-}
-
-llvm::Constant *
-MicrosoftCXXABI::EmitNullMemberPointer(const MemberPointerType *MPT) {
-  llvm::SmallVector<llvm::Constant *, 4> fields;
-  GetNullMemberPointerFields(MPT, fields);
-  if (fields.size() == 1)
-    return fields[0];
-  llvm::Constant *Res = llvm::ConstantStruct::getAnon(fields);
-  assert(Res->getType() == ConvertMemberPointerType(MPT));
-  return Res;
-}
-
-llvm::Constant *
-MicrosoftCXXABI::EmitFullMemberPointer(llvm::Constant *FirstField,
-                                       bool IsMemberFunction,
-                                       const CXXRecordDecl *RD,
-                                       CharUnits NonVirtualBaseAdjustment,
-                                       unsigned VBTableIndex) {
-  MSInheritanceAttr::Spelling Inheritance = RD->getMSInheritanceModel();
-
-  // Single inheritance class member pointer are represented as scalars instead
-  // of aggregates.
-  if (MSInheritanceAttr::hasOnlyOneField(IsMemberFunction, Inheritance))
-    return FirstField;
-
-  llvm::SmallVector<llvm::Constant *, 4> fields;
-  fields.push_back(FirstField);
-
-  if (MSInheritanceAttr::hasNVOffsetField(IsMemberFunction, Inheritance))
-    fields.push_back(llvm::ConstantInt::get(
-      CGM.IntTy, NonVirtualBaseAdjustment.getQuantity()));
-
-  if (MSInheritanceAttr::hasVBPtrOffsetField(Inheritance)) {
-    CharUnits Offs = CharUnits::Zero();
-    if (VBTableIndex)
-      Offs = getContext().getASTRecordLayout(RD).getVBPtrOffset();
-    fields.push_back(llvm::ConstantInt::get(CGM.IntTy, Offs.getQuantity()));
-  }
-
-  // The rest of the fields are adjusted by conversions to a more derived class.
-  if (MSInheritanceAttr::hasVBTableOffsetField(Inheritance))
-    fields.push_back(llvm::ConstantInt::get(CGM.IntTy, VBTableIndex));
-
-  return llvm::ConstantStruct::getAnon(fields);
-}
-
-llvm::Constant *
-MicrosoftCXXABI::EmitMemberDataPointer(const MemberPointerType *MPT,
-                                       CharUnits offset) {
-  const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl();
-  if (RD->getMSInheritanceModel() ==
-      MSInheritanceAttr::Keyword_virtual_inheritance)
-    offset -= getContext().getOffsetOfBaseWithVBPtr(RD);
-  llvm::Constant *FirstField =
-    llvm::ConstantInt::get(CGM.IntTy, offset.getQuantity());
-  return EmitFullMemberPointer(FirstField, /*IsMemberFunction=*/false, RD,
-                               CharUnits::Zero(), /*VBTableIndex=*/0);
-}
-
-llvm::Constant *MicrosoftCXXABI::EmitMemberPointer(const APValue &MP,
-                                                   QualType MPType) {
-  const MemberPointerType *DstTy = MPType->castAs<MemberPointerType>();
-  const ValueDecl *MPD = MP.getMemberPointerDecl();
-  if (!MPD)
-    return EmitNullMemberPointer(DstTy);
-
-  ASTContext &Ctx = getContext();
-  ArrayRef<const CXXRecordDecl *> MemberPointerPath = MP.getMemberPointerPath();
-
-  llvm::Constant *C;
-  if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(MPD)) {
-    C = EmitMemberFunctionPointer(MD);
-  } else {
-    CharUnits FieldOffset = Ctx.toCharUnitsFromBits(Ctx.getFieldOffset(MPD));
-    C = EmitMemberDataPointer(DstTy, FieldOffset);
-  }
-
-  if (!MemberPointerPath.empty()) {
-    const CXXRecordDecl *SrcRD = cast<CXXRecordDecl>(MPD->getDeclContext());
-    const Type *SrcRecTy = Ctx.getTypeDeclType(SrcRD).getTypePtr();
-    const MemberPointerType *SrcTy =
-        Ctx.getMemberPointerType(DstTy->getPointeeType(), SrcRecTy)
-            ->castAs<MemberPointerType>();
-
-    bool DerivedMember = MP.isMemberPointerToDerivedMember();
-    SmallVector<const CXXBaseSpecifier *, 4> DerivedToBasePath;
-    const CXXRecordDecl *PrevRD = SrcRD;
-    for (const CXXRecordDecl *PathElem : MemberPointerPath) {
-      const CXXRecordDecl *Base = nullptr;
-      const CXXRecordDecl *Derived = nullptr;
-      if (DerivedMember) {
-        Base = PathElem;
-        Derived = PrevRD;
-      } else {
-        Base = PrevRD;
-        Derived = PathElem;
-      }
-      for (const CXXBaseSpecifier &BS : Derived->bases())
-        if (BS.getType()->getAsCXXRecordDecl()->getCanonicalDecl() ==
-            Base->getCanonicalDecl())
-          DerivedToBasePath.push_back(&BS);
-      PrevRD = PathElem;
-    }
-    assert(DerivedToBasePath.size() == MemberPointerPath.size());
-
-    CastKind CK = DerivedMember ? CK_DerivedToBaseMemberPointer
-                                : CK_BaseToDerivedMemberPointer;
-    C = EmitMemberPointerConversion(SrcTy, DstTy, CK, DerivedToBasePath.begin(),
-                                    DerivedToBasePath.end(), C);
-  }
-  return C;
-}
-
-llvm::Constant *
-MicrosoftCXXABI::EmitMemberFunctionPointer(const CXXMethodDecl *MD) {
-  assert(MD->isInstance() && "Member function must not be static!");
-
-  CharUnits NonVirtualBaseAdjustment = CharUnits::Zero();
-  const CXXRecordDecl *RD = MD->getParent()->getMostRecentNonInjectedDecl();
-  CodeGenTypes &Types = CGM.getTypes();
-
-  unsigned VBTableIndex = 0;
-  llvm::Constant *FirstField;
-  const FunctionProtoType *FPT = MD->getType()->castAs<FunctionProtoType>();
-  if (!MD->isVirtual()) {
-    llvm::Type *Ty;
-    // Check whether the function has a computable LLVM signature.
-    if (Types.isFuncTypeConvertible(FPT)) {
-      // The function has a computable LLVM signature; use the correct type.
-      Ty = Types.GetFunctionType(Types.arrangeCXXMethodDeclaration(MD));
-    } else {
-      // Use an arbitrary non-function type to tell GetAddrOfFunction that the
-      // function type is incomplete.
-      Ty = CGM.PtrDiffTy;
-    }
-    FirstField = CGM.GetAddrOfFunction(MD, Ty);
-  } else {
-    auto &VTableContext = CGM.getMicrosoftVTableContext();
-    MethodVFTableLocation ML = VTableContext.getMethodVFTableLocation(MD);
-    FirstField = EmitVirtualMemPtrThunk(MD, ML);
-    // Include the vfptr adjustment if the method is in a non-primary vftable.
-    NonVirtualBaseAdjustment += ML.VFPtrOffset;
-    if (ML.VBase)
-      VBTableIndex = VTableContext.getVBTableIndex(RD, ML.VBase) * 4;
-  }
-
-  if (VBTableIndex == 0 &&
-      RD->getMSInheritanceModel() ==
-          MSInheritanceAttr::Keyword_virtual_inheritance)
-    NonVirtualBaseAdjustment -= getContext().getOffsetOfBaseWithVBPtr(RD);
-
-  // The rest of the fields are common with data member pointers.
-  FirstField = llvm::ConstantExpr::getBitCast(FirstField, CGM.VoidPtrTy);
-  return EmitFullMemberPointer(FirstField, /*IsMemberFunction=*/true, RD,
-                               NonVirtualBaseAdjustment, VBTableIndex);
-}
-
-/// Member pointers are the same if they're either bitwise identical *or* both
-/// null.  Null-ness for function members is determined by the first field,
-/// while for data member pointers we must compare all fields.
-llvm::Value *
-MicrosoftCXXABI::EmitMemberPointerComparison(CodeGenFunction &CGF,
-                                             llvm::Value *L,
-                                             llvm::Value *R,
-                                             const MemberPointerType *MPT,
-                                             bool Inequality) {
-  CGBuilderTy &Builder = CGF.Builder;
-
-  // Handle != comparisons by switching the sense of all boolean operations.
-  llvm::ICmpInst::Predicate Eq;
-  llvm::Instruction::BinaryOps And, Or;
-  if (Inequality) {
-    Eq = llvm::ICmpInst::ICMP_NE;
-    And = llvm::Instruction::Or;
-    Or = llvm::Instruction::And;
-  } else {
-    Eq = llvm::ICmpInst::ICMP_EQ;
-    And = llvm::Instruction::And;
-    Or = llvm::Instruction::Or;
-  }
-
-  // If this is a single field member pointer (single inheritance), this is a
-  // single icmp.
-  const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl();
-  MSInheritanceAttr::Spelling Inheritance = RD->getMSInheritanceModel();
-  if (MSInheritanceAttr::hasOnlyOneField(MPT->isMemberFunctionPointer(),
-                                         Inheritance))
-    return Builder.CreateICmp(Eq, L, R);
-
-  // Compare the first field.
-  llvm::Value *L0 = Builder.CreateExtractValue(L, 0, "lhs.0");
-  llvm::Value *R0 = Builder.CreateExtractValue(R, 0, "rhs.0");
-  llvm::Value *Cmp0 = Builder.CreateICmp(Eq, L0, R0, "memptr.cmp.first");
-
-  // Compare everything other than the first field.
-  llvm::Value *Res = nullptr;
-  llvm::StructType *LType = cast<llvm::StructType>(L->getType());
-  for (unsigned I = 1, E = LType->getNumElements(); I != E; ++I) {
-    llvm::Value *LF = Builder.CreateExtractValue(L, I);
-    llvm::Value *RF = Builder.CreateExtractValue(R, I);
-    llvm::Value *Cmp = Builder.CreateICmp(Eq, LF, RF, "memptr.cmp.rest");
-    if (Res)
-      Res = Builder.CreateBinOp(And, Res, Cmp);
-    else
-      Res = Cmp;
-  }
-
-  // Check if the first field is 0 if this is a function pointer.
-  if (MPT->isMemberFunctionPointer()) {
-    // (l1 == r1 && ...) || l0 == 0
-    llvm::Value *Zero = llvm::Constant::getNullValue(L0->getType());
-    llvm::Value *IsZero = Builder.CreateICmp(Eq, L0, Zero, "memptr.cmp.iszero");
-    Res = Builder.CreateBinOp(Or, Res, IsZero);
-  }
-
-  // Combine the comparison of the first field, which must always be true for
-  // this comparison to succeeed.
-  return Builder.CreateBinOp(And, Res, Cmp0, "memptr.cmp");
-}
-
-llvm::Value *
-MicrosoftCXXABI::EmitMemberPointerIsNotNull(CodeGenFunction &CGF,
-                                            llvm::Value *MemPtr,
-                                            const MemberPointerType *MPT) {
-  CGBuilderTy &Builder = CGF.Builder;
-  llvm::SmallVector<llvm::Constant *, 4> fields;
-  // We only need one field for member functions.
-  if (MPT->isMemberFunctionPointer())
-    fields.push_back(llvm::Constant::getNullValue(CGM.VoidPtrTy));
-  else
-    GetNullMemberPointerFields(MPT, fields);
-  assert(!fields.empty());
-  llvm::Value *FirstField = MemPtr;
-  if (MemPtr->getType()->isStructTy())
-    FirstField = Builder.CreateExtractValue(MemPtr, 0);
-  llvm::Value *Res = Builder.CreateICmpNE(FirstField, fields[0], "memptr.cmp0");
-
-  // For function member pointers, we only need to test the function pointer
-  // field.  The other fields if any can be garbage.
-  if (MPT->isMemberFunctionPointer())
-    return Res;
-
-  // Otherwise, emit a series of compares and combine the results.
-  for (int I = 1, E = fields.size(); I < E; ++I) {
-    llvm::Value *Field = Builder.CreateExtractValue(MemPtr, I);
-    llvm::Value *Next = Builder.CreateICmpNE(Field, fields[I], "memptr.cmp");
-    Res = Builder.CreateOr(Res, Next, "memptr.tobool");
-  }
-  return Res;
-}
-
-bool MicrosoftCXXABI::MemberPointerConstantIsNull(const MemberPointerType *MPT,
-                                                  llvm::Constant *Val) {
-  // Function pointers are null if the pointer in the first field is null.
-  if (MPT->isMemberFunctionPointer()) {
-    llvm::Constant *FirstField = Val->getType()->isStructTy() ?
-      Val->getAggregateElement(0U) : Val;
-    return FirstField->isNullValue();
-  }
-
-  // If it's not a function pointer and it's zero initializable, we can easily
-  // check zero.
-  if (isZeroInitializable(MPT) && Val->isNullValue())
-    return true;
-
-  // Otherwise, break down all the fields for comparison.  Hopefully these
-  // little Constants are reused, while a big null struct might not be.
-  llvm::SmallVector<llvm::Constant *, 4> Fields;
-  GetNullMemberPointerFields(MPT, Fields);
-  if (Fields.size() == 1) {
-    assert(Val->getType()->isIntegerTy());
-    return Val == Fields[0];
-  }
-
-  unsigned I, E;
-  for (I = 0, E = Fields.size(); I != E; ++I) {
-    if (Val->getAggregateElement(I) != Fields[I])
-      break;
-  }
-  return I == E;
-}
-
-llvm::Value *
-MicrosoftCXXABI::GetVBaseOffsetFromVBPtr(CodeGenFunction &CGF,
-                                         Address This,
-                                         llvm::Value *VBPtrOffset,
-                                         llvm::Value *VBTableOffset,
-                                         llvm::Value **VBPtrOut) {
-  CGBuilderTy &Builder = CGF.Builder;
-  // Load the vbtable pointer from the vbptr in the instance.
-  This = Builder.CreateElementBitCast(This, CGM.Int8Ty);
-  llvm::Value *VBPtr =
-    Builder.CreateInBoundsGEP(This.getPointer(), VBPtrOffset, "vbptr");
-  if (VBPtrOut) *VBPtrOut = VBPtr;
-  VBPtr = Builder.CreateBitCast(VBPtr,
-            CGM.Int32Ty->getPointerTo(0)->getPointerTo(This.getAddressSpace()));
-
-  CharUnits VBPtrAlign;
-  if (auto CI = dyn_cast<llvm::ConstantInt>(VBPtrOffset)) {
-    VBPtrAlign = This.getAlignment().alignmentAtOffset(
-                                   CharUnits::fromQuantity(CI->getSExtValue()));
-  } else {
-    VBPtrAlign = CGF.getPointerAlign();
-  }
-
-  llvm::Value *VBTable = Builder.CreateAlignedLoad(VBPtr, VBPtrAlign, "vbtable");
-
-  // Translate from byte offset to table index. It improves analyzability.
-  llvm::Value *VBTableIndex = Builder.CreateAShr(
-      VBTableOffset, llvm::ConstantInt::get(VBTableOffset->getType(), 2),
-      "vbtindex", /*isExact=*/true);
-
-  // Load an i32 offset from the vb-table.
-  llvm::Value *VBaseOffs = Builder.CreateInBoundsGEP(VBTable, VBTableIndex);
-  VBaseOffs = Builder.CreateBitCast(VBaseOffs, CGM.Int32Ty->getPointerTo(0));
-  return Builder.CreateAlignedLoad(VBaseOffs, CharUnits::fromQuantity(4),
-                                   "vbase_offs");
-}
-
-// Returns an adjusted base cast to i8*, since we do more address arithmetic on
-// it.
-llvm::Value *MicrosoftCXXABI::AdjustVirtualBase(
-    CodeGenFunction &CGF, const Expr *E, const CXXRecordDecl *RD,
-    Address Base, llvm::Value *VBTableOffset, llvm::Value *VBPtrOffset) {
-  CGBuilderTy &Builder = CGF.Builder;
-  Base = Builder.CreateElementBitCast(Base, CGM.Int8Ty);
-  llvm::BasicBlock *OriginalBB = nullptr;
-  llvm::BasicBlock *SkipAdjustBB = nullptr;
-  llvm::BasicBlock *VBaseAdjustBB = nullptr;
-
-  // In the unspecified inheritance model, there might not be a vbtable at all,
-  // in which case we need to skip the virtual base lookup.  If there is a
-  // vbtable, the first entry is a no-op entry that gives back the original
-  // base, so look for a virtual base adjustment offset of zero.
-  if (VBPtrOffset) {
-    OriginalBB = Builder.GetInsertBlock();
-    VBaseAdjustBB = CGF.createBasicBlock("memptr.vadjust");
-    SkipAdjustBB = CGF.createBasicBlock("memptr.skip_vadjust");
-    llvm::Value *IsVirtual =
-      Builder.CreateICmpNE(VBTableOffset, getZeroInt(),
-                           "memptr.is_vbase");
-    Builder.CreateCondBr(IsVirtual, VBaseAdjustBB, SkipAdjustBB);
-    CGF.EmitBlock(VBaseAdjustBB);
-  }
-
-  // If we weren't given a dynamic vbptr offset, RD should be complete and we'll
-  // know the vbptr offset.
-  if (!VBPtrOffset) {
-    CharUnits offs = CharUnits::Zero();
-    if (!RD->hasDefinition()) {
-      DiagnosticsEngine &Diags = CGF.CGM.getDiags();
-      unsigned DiagID = Diags.getCustomDiagID(
-          DiagnosticsEngine::Error,
-          "member pointer representation requires a "
-          "complete class type for %0 to perform this expression");
-      Diags.Report(E->getExprLoc(), DiagID) << RD << E->getSourceRange();
-    } else if (RD->getNumVBases())
-      offs = getContext().getASTRecordLayout(RD).getVBPtrOffset();
-    VBPtrOffset = llvm::ConstantInt::get(CGM.IntTy, offs.getQuantity());
-  }
-  llvm::Value *VBPtr = nullptr;
-  llvm::Value *VBaseOffs =
-    GetVBaseOffsetFromVBPtr(CGF, Base, VBPtrOffset, VBTableOffset, &VBPtr);
-  llvm::Value *AdjustedBase = Builder.CreateInBoundsGEP(VBPtr, VBaseOffs);
-
-  // Merge control flow with the case where we didn't have to adjust.
-  if (VBaseAdjustBB) {
-    Builder.CreateBr(SkipAdjustBB);
-    CGF.EmitBlock(SkipAdjustBB);
-    llvm::PHINode *Phi = Builder.CreatePHI(CGM.Int8PtrTy, 2, "memptr.base");
-    Phi->addIncoming(Base.getPointer(), OriginalBB);
-    Phi->addIncoming(AdjustedBase, VBaseAdjustBB);
-    return Phi;
-  }
-  return AdjustedBase;
-}
-
-llvm::Value *MicrosoftCXXABI::EmitMemberDataPointerAddress(
-    CodeGenFunction &CGF, const Expr *E, Address Base, llvm::Value *MemPtr,
-    const MemberPointerType *MPT) {
-  assert(MPT->isMemberDataPointer());
-  unsigned AS = Base.getAddressSpace();
-  llvm::Type *PType =
-      CGF.ConvertTypeForMem(MPT->getPointeeType())->getPointerTo(AS);
-  CGBuilderTy &Builder = CGF.Builder;
-  const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl();
-  MSInheritanceAttr::Spelling Inheritance = RD->getMSInheritanceModel();
-
-  // Extract the fields we need, regardless of model.  We'll apply them if we
-  // have them.
-  llvm::Value *FieldOffset = MemPtr;
-  llvm::Value *VirtualBaseAdjustmentOffset = nullptr;
-  llvm::Value *VBPtrOffset = nullptr;
-  if (MemPtr->getType()->isStructTy()) {
-    // We need to extract values.
-    unsigned I = 0;
-    FieldOffset = Builder.CreateExtractValue(MemPtr, I++);
-    if (MSInheritanceAttr::hasVBPtrOffsetField(Inheritance))
-      VBPtrOffset = Builder.CreateExtractValue(MemPtr, I++);
-    if (MSInheritanceAttr::hasVBTableOffsetField(Inheritance))
-      VirtualBaseAdjustmentOffset = Builder.CreateExtractValue(MemPtr, I++);
-  }
-
-  llvm::Value *Addr;
-  if (VirtualBaseAdjustmentOffset) {
-    Addr = AdjustVirtualBase(CGF, E, RD, Base, VirtualBaseAdjustmentOffset,
-                             VBPtrOffset);
-  } else {
-    Addr = Base.getPointer();
-  }
-
-  // Cast to char*.
-  Addr = Builder.CreateBitCast(Addr, CGF.Int8Ty->getPointerTo(AS));
-
-  // Apply the offset, which we assume is non-null.
-  Addr = Builder.CreateInBoundsGEP(Addr, FieldOffset, "memptr.offset");
-
-  // Cast the address to the appropriate pointer type, adopting the address
-  // space of the base pointer.
-  return Builder.CreateBitCast(Addr, PType);
-}
-
-llvm::Value *
-MicrosoftCXXABI::EmitMemberPointerConversion(CodeGenFunction &CGF,
-                                             const CastExpr *E,
-                                             llvm::Value *Src) {
-  assert(E->getCastKind() == CK_DerivedToBaseMemberPointer ||
-         E->getCastKind() == CK_BaseToDerivedMemberPointer ||
-         E->getCastKind() == CK_ReinterpretMemberPointer);
-
-  // Use constant emission if we can.
-  if (isa<llvm::Constant>(Src))
-    return EmitMemberPointerConversion(E, cast<llvm::Constant>(Src));
-
-  // We may be adding or dropping fields from the member pointer, so we need
-  // both types and the inheritance models of both records.
-  const MemberPointerType *SrcTy =
-    E->getSubExpr()->getType()->castAs<MemberPointerType>();
-  const MemberPointerType *DstTy = E->getType()->castAs<MemberPointerType>();
-  bool IsFunc = SrcTy->isMemberFunctionPointer();
-
-  // If the classes use the same null representation, reinterpret_cast is a nop.
-  bool IsReinterpret = E->getCastKind() == CK_ReinterpretMemberPointer;
-  if (IsReinterpret && IsFunc)
-    return Src;
-
-  CXXRecordDecl *SrcRD = SrcTy->getMostRecentCXXRecordDecl();
-  CXXRecordDecl *DstRD = DstTy->getMostRecentCXXRecordDecl();
-  if (IsReinterpret &&
-      SrcRD->nullFieldOffsetIsZero() == DstRD->nullFieldOffsetIsZero())
-    return Src;
-
-  CGBuilderTy &Builder = CGF.Builder;
-
-  // Branch past the conversion if Src is null.
-  llvm::Value *IsNotNull = EmitMemberPointerIsNotNull(CGF, Src, SrcTy);
-  llvm::Constant *DstNull = EmitNullMemberPointer(DstTy);
-
-  // C++ 5.2.10p9: The null member pointer value is converted to the null member
-  //   pointer value of the destination type.
-  if (IsReinterpret) {
-    // For reinterpret casts, sema ensures that src and dst are both functions
-    // or data and have the same size, which means the LLVM types should match.
-    assert(Src->getType() == DstNull->getType());
-    return Builder.CreateSelect(IsNotNull, Src, DstNull);
-  }
-
-  llvm::BasicBlock *OriginalBB = Builder.GetInsertBlock();
-  llvm::BasicBlock *ConvertBB = CGF.createBasicBlock("memptr.convert");
-  llvm::BasicBlock *ContinueBB = CGF.createBasicBlock("memptr.converted");
-  Builder.CreateCondBr(IsNotNull, ConvertBB, ContinueBB);
-  CGF.EmitBlock(ConvertBB);
-
-  llvm::Value *Dst = EmitNonNullMemberPointerConversion(
-      SrcTy, DstTy, E->getCastKind(), E->path_begin(), E->path_end(), Src,
-      Builder);
-
-  Builder.CreateBr(ContinueBB);
-
-  // In the continuation, choose between DstNull and Dst.
-  CGF.EmitBlock(ContinueBB);
-  llvm::PHINode *Phi = Builder.CreatePHI(DstNull->getType(), 2, "memptr.converted");
-  Phi->addIncoming(DstNull, OriginalBB);
-  Phi->addIncoming(Dst, ConvertBB);
-  return Phi;
-}
-
-llvm::Value *MicrosoftCXXABI::EmitNonNullMemberPointerConversion(
-    const MemberPointerType *SrcTy, const MemberPointerType *DstTy, CastKind CK,
-    CastExpr::path_const_iterator PathBegin,
-    CastExpr::path_const_iterator PathEnd, llvm::Value *Src,
-    CGBuilderTy &Builder) {
-  const CXXRecordDecl *SrcRD = SrcTy->getMostRecentCXXRecordDecl();
-  const CXXRecordDecl *DstRD = DstTy->getMostRecentCXXRecordDecl();
-  MSInheritanceAttr::Spelling SrcInheritance = SrcRD->getMSInheritanceModel();
-  MSInheritanceAttr::Spelling DstInheritance = DstRD->getMSInheritanceModel();
-  bool IsFunc = SrcTy->isMemberFunctionPointer();
-  bool IsConstant = isa<llvm::Constant>(Src);
-
-  // Decompose src.
-  llvm::Value *FirstField = Src;
-  llvm::Value *NonVirtualBaseAdjustment = getZeroInt();
-  llvm::Value *VirtualBaseAdjustmentOffset = getZeroInt();
-  llvm::Value *VBPtrOffset = getZeroInt();
-  if (!MSInheritanceAttr::hasOnlyOneField(IsFunc, SrcInheritance)) {
-    // We need to extract values.
-    unsigned I = 0;
-    FirstField = Builder.CreateExtractValue(Src, I++);
-    if (MSInheritanceAttr::hasNVOffsetField(IsFunc, SrcInheritance))
-      NonVirtualBaseAdjustment = Builder.CreateExtractValue(Src, I++);
-    if (MSInheritanceAttr::hasVBPtrOffsetField(SrcInheritance))
-      VBPtrOffset = Builder.CreateExtractValue(Src, I++);
-    if (MSInheritanceAttr::hasVBTableOffsetField(SrcInheritance))
-      VirtualBaseAdjustmentOffset = Builder.CreateExtractValue(Src, I++);
-  }
-
-  bool IsDerivedToBase = (CK == CK_DerivedToBaseMemberPointer);
-  const MemberPointerType *DerivedTy = IsDerivedToBase ? SrcTy : DstTy;
-  const CXXRecordDecl *DerivedClass = DerivedTy->getMostRecentCXXRecordDecl();
-
-  // For data pointers, we adjust the field offset directly.  For functions, we
-  // have a separate field.
-  llvm::Value *&NVAdjustField = IsFunc ? NonVirtualBaseAdjustment : FirstField;
-
-  // The virtual inheritance model has a quirk: the virtual base table is always
-  // referenced when dereferencing a member pointer even if the member pointer
-  // is non-virtual.  This is accounted for by adjusting the non-virtual offset
-  // to point backwards to the top of the MDC from the first VBase.  Undo this
-  // adjustment to normalize the member pointer.
-  llvm::Value *SrcVBIndexEqZero =
-      Builder.CreateICmpEQ(VirtualBaseAdjustmentOffset, getZeroInt());
-  if (SrcInheritance == MSInheritanceAttr::Keyword_virtual_inheritance) {
-    if (int64_t SrcOffsetToFirstVBase =
-            getContext().getOffsetOfBaseWithVBPtr(SrcRD).getQuantity()) {
-      llvm::Value *UndoSrcAdjustment = Builder.CreateSelect(
-          SrcVBIndexEqZero,
-          llvm::ConstantInt::get(CGM.IntTy, SrcOffsetToFirstVBase),
-          getZeroInt());
-      NVAdjustField = Builder.CreateNSWAdd(NVAdjustField, UndoSrcAdjustment);
-    }
-  }
-
-  // A non-zero vbindex implies that we are dealing with a source member in a
-  // floating virtual base in addition to some non-virtual offset.  If the
-  // vbindex is zero, we are dealing with a source that exists in a non-virtual,
-  // fixed, base.  The difference between these two cases is that the vbindex +
-  // nvoffset *always* point to the member regardless of what context they are
-  // evaluated in so long as the vbindex is adjusted.  A member inside a fixed
-  // base requires explicit nv adjustment.
-  llvm::Constant *BaseClassOffset = llvm::ConstantInt::get(
-      CGM.IntTy,
-      CGM.computeNonVirtualBaseClassOffset(DerivedClass, PathBegin, PathEnd)
-          .getQuantity());
-
-  llvm::Value *NVDisp;
-  if (IsDerivedToBase)
-    NVDisp = Builder.CreateNSWSub(NVAdjustField, BaseClassOffset, "adj");
-  else
-    NVDisp = Builder.CreateNSWAdd(NVAdjustField, BaseClassOffset, "adj");
-
-  NVAdjustField = Builder.CreateSelect(SrcVBIndexEqZero, NVDisp, getZeroInt());
-
-  // Update the vbindex to an appropriate value in the destination because
-  // SrcRD's vbtable might not be a strict prefix of the one in DstRD.
-  llvm::Value *DstVBIndexEqZero = SrcVBIndexEqZero;
-  if (MSInheritanceAttr::hasVBTableOffsetField(DstInheritance) &&
-      MSInheritanceAttr::hasVBTableOffsetField(SrcInheritance)) {
-    if (llvm::GlobalVariable *VDispMap =
-            getAddrOfVirtualDisplacementMap(SrcRD, DstRD)) {
-      llvm::Value *VBIndex = Builder.CreateExactUDiv(
-          VirtualBaseAdjustmentOffset, llvm::ConstantInt::get(CGM.IntTy, 4));
-      if (IsConstant) {
-        llvm::Constant *Mapping = VDispMap->getInitializer();
-        VirtualBaseAdjustmentOffset =
-            Mapping->getAggregateElement(cast<llvm::Constant>(VBIndex));
-      } else {
-        llvm::Value *Idxs[] = {getZeroInt(), VBIndex};
-        VirtualBaseAdjustmentOffset =
-            Builder.CreateAlignedLoad(Builder.CreateInBoundsGEP(VDispMap, Idxs),
-                                      CharUnits::fromQuantity(4));
-      }
-
-      DstVBIndexEqZero =
-          Builder.CreateICmpEQ(VirtualBaseAdjustmentOffset, getZeroInt());
-    }
-  }
-
-  // Set the VBPtrOffset to zero if the vbindex is zero.  Otherwise, initialize
-  // it to the offset of the vbptr.
-  if (MSInheritanceAttr::hasVBPtrOffsetField(DstInheritance)) {
-    llvm::Value *DstVBPtrOffset = llvm::ConstantInt::get(
-        CGM.IntTy,
-        getContext().getASTRecordLayout(DstRD).getVBPtrOffset().getQuantity());
-    VBPtrOffset =
-        Builder.CreateSelect(DstVBIndexEqZero, getZeroInt(), DstVBPtrOffset);
-  }
-
-  // Likewise, apply a similar adjustment so that dereferencing the member
-  // pointer correctly accounts for the distance between the start of the first
-  // virtual base and the top of the MDC.
-  if (DstInheritance == MSInheritanceAttr::Keyword_virtual_inheritance) {
-    if (int64_t DstOffsetToFirstVBase =
-            getContext().getOffsetOfBaseWithVBPtr(DstRD).getQuantity()) {
-      llvm::Value *DoDstAdjustment = Builder.CreateSelect(
-          DstVBIndexEqZero,
-          llvm::ConstantInt::get(CGM.IntTy, DstOffsetToFirstVBase),
-          getZeroInt());
-      NVAdjustField = Builder.CreateNSWSub(NVAdjustField, DoDstAdjustment);
-    }
-  }
-
-  // Recompose dst from the null struct and the adjusted fields from src.
-  llvm::Value *Dst;
-  if (MSInheritanceAttr::hasOnlyOneField(IsFunc, DstInheritance)) {
-    Dst = FirstField;
-  } else {
-    Dst = llvm::UndefValue::get(ConvertMemberPointerType(DstTy));
-    unsigned Idx = 0;
-    Dst = Builder.CreateInsertValue(Dst, FirstField, Idx++);
-    if (MSInheritanceAttr::hasNVOffsetField(IsFunc, DstInheritance))
-      Dst = Builder.CreateInsertValue(Dst, NonVirtualBaseAdjustment, Idx++);
-    if (MSInheritanceAttr::hasVBPtrOffsetField(DstInheritance))
-      Dst = Builder.CreateInsertValue(Dst, VBPtrOffset, Idx++);
-    if (MSInheritanceAttr::hasVBTableOffsetField(DstInheritance))
-      Dst = Builder.CreateInsertValue(Dst, VirtualBaseAdjustmentOffset, Idx++);
-  }
-  return Dst;
-}
-
-llvm::Constant *
-MicrosoftCXXABI::EmitMemberPointerConversion(const CastExpr *E,
-                                             llvm::Constant *Src) {
-  const MemberPointerType *SrcTy =
-      E->getSubExpr()->getType()->castAs<MemberPointerType>();
-  const MemberPointerType *DstTy = E->getType()->castAs<MemberPointerType>();
-
-  CastKind CK = E->getCastKind();
-
-  return EmitMemberPointerConversion(SrcTy, DstTy, CK, E->path_begin(),
-                                     E->path_end(), Src);
-}
-
-llvm::Constant *MicrosoftCXXABI::EmitMemberPointerConversion(
-    const MemberPointerType *SrcTy, const MemberPointerType *DstTy, CastKind CK,
-    CastExpr::path_const_iterator PathBegin,
-    CastExpr::path_const_iterator PathEnd, llvm::Constant *Src) {
-  assert(CK == CK_DerivedToBaseMemberPointer ||
-         CK == CK_BaseToDerivedMemberPointer ||
-         CK == CK_ReinterpretMemberPointer);
-  // If src is null, emit a new null for dst.  We can't return src because dst
-  // might have a new representation.
-  if (MemberPointerConstantIsNull(SrcTy, Src))
-    return EmitNullMemberPointer(DstTy);
-
-  // We don't need to do anything for reinterpret_casts of non-null member
-  // pointers.  We should only get here when the two type representations have
-  // the same size.
-  if (CK == CK_ReinterpretMemberPointer)
-    return Src;
-
-  CGBuilderTy Builder(CGM, CGM.getLLVMContext());
-  auto *Dst = cast<llvm::Constant>(EmitNonNullMemberPointerConversion(
-      SrcTy, DstTy, CK, PathBegin, PathEnd, Src, Builder));
-
-  return Dst;
-}
-
-CGCallee MicrosoftCXXABI::EmitLoadOfMemberFunctionPointer(
-    CodeGenFunction &CGF, const Expr *E, Address This,
-    llvm::Value *&ThisPtrForCall, llvm::Value *MemPtr,
-    const MemberPointerType *MPT) {
-  assert(MPT->isMemberFunctionPointer());
-  const FunctionProtoType *FPT =
-    MPT->getPointeeType()->castAs<FunctionProtoType>();
-  const CXXRecordDecl *RD = MPT->getMostRecentCXXRecordDecl();
-  llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(
-      CGM.getTypes().arrangeCXXMethodType(RD, FPT, /*FD=*/nullptr));
-  CGBuilderTy &Builder = CGF.Builder;
-
-  MSInheritanceAttr::Spelling Inheritance = RD->getMSInheritanceModel();
-
-  // Extract the fields we need, regardless of model.  We'll apply them if we
-  // have them.
-  llvm::Value *FunctionPointer = MemPtr;
-  llvm::Value *NonVirtualBaseAdjustment = nullptr;
-  llvm::Value *VirtualBaseAdjustmentOffset = nullptr;
-  llvm::Value *VBPtrOffset = nullptr;
-  if (MemPtr->getType()->isStructTy()) {
-    // We need to extract values.
-    unsigned I = 0;
-    FunctionPointer = Builder.CreateExtractValue(MemPtr, I++);
-    if (MSInheritanceAttr::hasNVOffsetField(MPT, Inheritance))
-      NonVirtualBaseAdjustment = Builder.CreateExtractValue(MemPtr, I++);
-    if (MSInheritanceAttr::hasVBPtrOffsetField(Inheritance))
-      VBPtrOffset = Builder.CreateExtractValue(MemPtr, I++);
-    if (MSInheritanceAttr::hasVBTableOffsetField(Inheritance))
-      VirtualBaseAdjustmentOffset = Builder.CreateExtractValue(MemPtr, I++);
-  }
-
-  if (VirtualBaseAdjustmentOffset) {
-    ThisPtrForCall = AdjustVirtualBase(CGF, E, RD, This,
-                                   VirtualBaseAdjustmentOffset, VBPtrOffset);
-  } else {
-    ThisPtrForCall = This.getPointer();
-  }
-
-  if (NonVirtualBaseAdjustment) {
-    // Apply the adjustment and cast back to the original struct type.
-    llvm::Value *Ptr = Builder.CreateBitCast(ThisPtrForCall, CGF.Int8PtrTy);
-    Ptr = Builder.CreateInBoundsGEP(Ptr, NonVirtualBaseAdjustment);
-    ThisPtrForCall = Builder.CreateBitCast(Ptr, ThisPtrForCall->getType(),
-                                           "this.adjusted");
-  }
-
-  FunctionPointer =
-    Builder.CreateBitCast(FunctionPointer, FTy->getPointerTo());
-  CGCallee Callee(FPT, FunctionPointer);
-  return Callee;
-}
-
-CGCXXABI *clang::CodeGen::CreateMicrosoftCXXABI(CodeGenModule &CGM) {
-  return new MicrosoftCXXABI(CGM);
-}
-
-// MS RTTI Overview:
-// The run time type information emitted by cl.exe contains 5 distinct types of
-// structures.  Many of them reference each other.
-//
-// TypeInfo:  Static classes that are returned by typeid.
-//
-// CompleteObjectLocator:  Referenced by vftables.  They contain information
-//   required for dynamic casting, including OffsetFromTop.  They also contain
-//   a reference to the TypeInfo for the type and a reference to the
-//   CompleteHierarchyDescriptor for the type.
-//
-// ClassHierarchyDescriptor: Contains information about a class hierarchy.
-//   Used during dynamic_cast to walk a class hierarchy.  References a base
-//   class array and the size of said array.
-//
-// BaseClassArray: Contains a list of classes in a hierarchy.  BaseClassArray is
-//   somewhat of a misnomer because the most derived class is also in the list
-//   as well as multiple copies of virtual bases (if they occur multiple times
-//   in the hierarchy.)  The BaseClassArray contains one BaseClassDescriptor for
-//   every path in the hierarchy, in pre-order depth first order.  Note, we do
-//   not declare a specific llvm type for BaseClassArray, it's merely an array
-//   of BaseClassDescriptor pointers.
-//
-// BaseClassDescriptor: Contains information about a class in a class hierarchy.
-//   BaseClassDescriptor is also somewhat of a misnomer for the same reason that
-//   BaseClassArray is.  It contains information about a class within a
-//   hierarchy such as: is this base is ambiguous and what is its offset in the
-//   vbtable.  The names of the BaseClassDescriptors have all of their fields
-//   mangled into them so they can be aggressively deduplicated by the linker.
-
-static llvm::GlobalVariable *getTypeInfoVTable(CodeGenModule &CGM) {
-  StringRef MangledName("??_7type_info@@6B@");
-  if (auto VTable = CGM.getModule().getNamedGlobal(MangledName))
-    return VTable;
-  return new llvm::GlobalVariable(CGM.getModule(), CGM.Int8PtrTy,
-                                  /*Constant=*/true,
-                                  llvm::GlobalVariable::ExternalLinkage,
-                                  /*Initializer=*/nullptr, MangledName);
-}
-
-namespace {
-
-/// A Helper struct that stores information about a class in a class
-/// hierarchy.  The information stored in these structs struct is used during
-/// the generation of ClassHierarchyDescriptors and BaseClassDescriptors.
-// During RTTI creation, MSRTTIClasses are stored in a contiguous array with
-// implicit depth first pre-order tree connectivity.  getFirstChild and
-// getNextSibling allow us to walk the tree efficiently.
-struct MSRTTIClass {
-  enum {
-    IsPrivateOnPath = 1 | 8,
-    IsAmbiguous = 2,
-    IsPrivate = 4,
-    IsVirtual = 16,
-    HasHierarchyDescriptor = 64
-  };
-  MSRTTIClass(const CXXRecordDecl *RD) : RD(RD) {}
-  uint32_t initialize(const MSRTTIClass *Parent,
-                      const CXXBaseSpecifier *Specifier);
-
-  MSRTTIClass *getFirstChild() { return this + 1; }
-  static MSRTTIClass *getNextChild(MSRTTIClass *Child) {
-    return Child + 1 + Child->NumBases;
-  }
-
-  const CXXRecordDecl *RD, *VirtualRoot;
-  uint32_t Flags, NumBases, OffsetInVBase;
-};
-
-/// Recursively initialize the base class array.
-uint32_t MSRTTIClass::initialize(const MSRTTIClass *Parent,
-                                 const CXXBaseSpecifier *Specifier) {
-  Flags = HasHierarchyDescriptor;
-  if (!Parent) {
-    VirtualRoot = nullptr;
-    OffsetInVBase = 0;
-  } else {
-    if (Specifier->getAccessSpecifier() != AS_public)
-      Flags |= IsPrivate | IsPrivateOnPath;
-    if (Specifier->isVirtual()) {
-      Flags |= IsVirtual;
-      VirtualRoot = RD;
-      OffsetInVBase = 0;
-    } else {
-      if (Parent->Flags & IsPrivateOnPath)
-        Flags |= IsPrivateOnPath;
-      VirtualRoot = Parent->VirtualRoot;
-      OffsetInVBase = Parent->OffsetInVBase + RD->getASTContext()
-          .getASTRecordLayout(Parent->RD).getBaseClassOffset(RD).getQuantity();
-    }
-  }
-  NumBases = 0;
-  MSRTTIClass *Child = getFirstChild();
-  for (const CXXBaseSpecifier &Base : RD->bases()) {
-    NumBases += Child->initialize(this, &Base) + 1;
-    Child = getNextChild(Child);
-  }
-  return NumBases;
-}
-
-static llvm::GlobalValue::LinkageTypes getLinkageForRTTI(QualType Ty) {
-  switch (Ty->getLinkage()) {
-  case NoLinkage:
-  case InternalLinkage:
-  case UniqueExternalLinkage:
-    return llvm::GlobalValue::InternalLinkage;
-
-  case VisibleNoLinkage:
-  case ModuleInternalLinkage:
-  case ModuleLinkage:
-  case ExternalLinkage:
-    return llvm::GlobalValue::LinkOnceODRLinkage;
-  }
-  llvm_unreachable("Invalid linkage!");
-}
-
-/// An ephemeral helper class for building MS RTTI types.  It caches some
-/// calls to the module and information about the most derived class in a
-/// hierarchy.
-struct MSRTTIBuilder {
-  enum {
-    HasBranchingHierarchy = 1,
-    HasVirtualBranchingHierarchy = 2,
-    HasAmbiguousBases = 4
-  };
-
-  MSRTTIBuilder(MicrosoftCXXABI &ABI, const CXXRecordDecl *RD)
-      : CGM(ABI.CGM), Context(CGM.getContext()),
-        VMContext(CGM.getLLVMContext()), Module(CGM.getModule()), RD(RD),
-        Linkage(getLinkageForRTTI(CGM.getContext().getTagDeclType(RD))),
-        ABI(ABI) {}
-
-  llvm::GlobalVariable *getBaseClassDescriptor(const MSRTTIClass &Classes);
-  llvm::GlobalVariable *
-  getBaseClassArray(SmallVectorImpl<MSRTTIClass> &Classes);
-  llvm::GlobalVariable *getClassHierarchyDescriptor();
-  llvm::GlobalVariable *getCompleteObjectLocator(const VPtrInfo &Info);
-
-  CodeGenModule &CGM;
-  ASTContext &Context;
-  llvm::LLVMContext &VMContext;
-  llvm::Module &Module;
-  const CXXRecordDecl *RD;
-  llvm::GlobalVariable::LinkageTypes Linkage;
-  MicrosoftCXXABI &ABI;
-};
-
-} // namespace
-
-/// Recursively serializes a class hierarchy in pre-order depth first
-/// order.
-static void serializeClassHierarchy(SmallVectorImpl<MSRTTIClass> &Classes,
-                                    const CXXRecordDecl *RD) {
-  Classes.push_back(MSRTTIClass(RD));
-  for (const CXXBaseSpecifier &Base : RD->bases())
-    serializeClassHierarchy(Classes, Base.getType()->getAsCXXRecordDecl());
-}
-
-/// Find ambiguity among base classes.
-static void
-detectAmbiguousBases(SmallVectorImpl<MSRTTIClass> &Classes) {
-  llvm::SmallPtrSet<const CXXRecordDecl *, 8> VirtualBases;
-  llvm::SmallPtrSet<const CXXRecordDecl *, 8> UniqueBases;
-  llvm::SmallPtrSet<const CXXRecordDecl *, 8> AmbiguousBases;
-  for (MSRTTIClass *Class = &Classes.front(); Class <= &Classes.back();) {
-    if ((Class->Flags & MSRTTIClass::IsVirtual) &&
-        !VirtualBases.insert(Class->RD).second) {
-      Class = MSRTTIClass::getNextChild(Class);
-      continue;
-    }
-    if (!UniqueBases.insert(Class->RD).second)
-      AmbiguousBases.insert(Class->RD);
-    Class++;
-  }
-  if (AmbiguousBases.empty())
-    return;
-  for (MSRTTIClass &Class : Classes)
-    if (AmbiguousBases.count(Class.RD))
-      Class.Flags |= MSRTTIClass::IsAmbiguous;
-}
-
-llvm::GlobalVariable *MSRTTIBuilder::getClassHierarchyDescriptor() {
-  SmallString<256> MangledName;
-  {
-    llvm::raw_svector_ostream Out(MangledName);
-    ABI.getMangleContext().mangleCXXRTTIClassHierarchyDescriptor(RD, Out);
-  }
-
-  // Check to see if we've already declared this ClassHierarchyDescriptor.
-  if (auto CHD = Module.getNamedGlobal(MangledName))
-    return CHD;
-
-  // Serialize the class hierarchy and initialize the CHD Fields.
-  SmallVector<MSRTTIClass, 8> Classes;
-  serializeClassHierarchy(Classes, RD);
-  Classes.front().initialize(/*Parent=*/nullptr, /*Specifier=*/nullptr);
-  detectAmbiguousBases(Classes);
-  int Flags = 0;
-  for (auto Class : Classes) {
-    if (Class.RD->getNumBases() > 1)
-      Flags |= HasBranchingHierarchy;
-    // Note: cl.exe does not calculate "HasAmbiguousBases" correctly.  We
-    // believe the field isn't actually used.
-    if (Class.Flags & MSRTTIClass::IsAmbiguous)
-      Flags |= HasAmbiguousBases;
-  }
-  if ((Flags & HasBranchingHierarchy) && RD->getNumVBases() != 0)
-    Flags |= HasVirtualBranchingHierarchy;
-  // These gep indices are used to get the address of the first element of the
-  // base class array.
-  llvm::Value *GEPIndices[] = {llvm::ConstantInt::get(CGM.IntTy, 0),
-                               llvm::ConstantInt::get(CGM.IntTy, 0)};
-
-  // Forward-declare the class hierarchy descriptor
-  auto Type = ABI.getClassHierarchyDescriptorType();
-  auto CHD = new llvm::GlobalVariable(Module, Type, /*Constant=*/true, Linkage,
-                                      /*Initializer=*/nullptr,
-                                      MangledName);
-  if (CHD->isWeakForLinker())
-    CHD->setComdat(CGM.getModule().getOrInsertComdat(CHD->getName()));
-
-  auto *Bases = getBaseClassArray(Classes);
-
-  // Initialize the base class ClassHierarchyDescriptor.
-  llvm::Constant *Fields[] = {
-      llvm::ConstantInt::get(CGM.IntTy, 0), // reserved by the runtime
-      llvm::ConstantInt::get(CGM.IntTy, Flags),
-      llvm::ConstantInt::get(CGM.IntTy, Classes.size()),
-      ABI.getImageRelativeConstant(llvm::ConstantExpr::getInBoundsGetElementPtr(
-          Bases->getValueType(), Bases,
-          llvm::ArrayRef<llvm::Value *>(GEPIndices))),
-  };
-  CHD->setInitializer(llvm::ConstantStruct::get(Type, Fields));
-  return CHD;
-}
-
-llvm::GlobalVariable *
-MSRTTIBuilder::getBaseClassArray(SmallVectorImpl<MSRTTIClass> &Classes) {
-  SmallString<256> MangledName;
-  {
-    llvm::raw_svector_ostream Out(MangledName);
-    ABI.getMangleContext().mangleCXXRTTIBaseClassArray(RD, Out);
-  }
-
-  // Forward-declare the base class array.
-  // cl.exe pads the base class array with 1 (in 32 bit mode) or 4 (in 64 bit
-  // mode) bytes of padding.  We provide a pointer sized amount of padding by
-  // adding +1 to Classes.size().  The sections have pointer alignment and are
-  // marked pick-any so it shouldn't matter.
-  llvm::Type *PtrType = ABI.getImageRelativeType(
-      ABI.getBaseClassDescriptorType()->getPointerTo());
-  auto *ArrType = llvm::ArrayType::get(PtrType, Classes.size() + 1);
-  auto *BCA =
-      new llvm::GlobalVariable(Module, ArrType,
-                               /*Constant=*/true, Linkage,
-                               /*Initializer=*/nullptr, MangledName);
-  if (BCA->isWeakForLinker())
-    BCA->setComdat(CGM.getModule().getOrInsertComdat(BCA->getName()));
-
-  // Initialize the BaseClassArray.
-  SmallVector<llvm::Constant *, 8> BaseClassArrayData;
-  for (MSRTTIClass &Class : Classes)
-    BaseClassArrayData.push_back(
-        ABI.getImageRelativeConstant(getBaseClassDescriptor(Class)));
-  BaseClassArrayData.push_back(llvm::Constant::getNullValue(PtrType));
-  BCA->setInitializer(llvm::ConstantArray::get(ArrType, BaseClassArrayData));
-  return BCA;
-}
-
-llvm::GlobalVariable *
-MSRTTIBuilder::getBaseClassDescriptor(const MSRTTIClass &Class) {
-  // Compute the fields for the BaseClassDescriptor.  They are computed up front
-  // because they are mangled into the name of the object.
-  uint32_t OffsetInVBTable = 0;
-  int32_t VBPtrOffset = -1;
-  if (Class.VirtualRoot) {
-    auto &VTableContext = CGM.getMicrosoftVTableContext();
-    OffsetInVBTable = VTableContext.getVBTableIndex(RD, Class.VirtualRoot) * 4;
-    VBPtrOffset = Context.getASTRecordLayout(RD).getVBPtrOffset().getQuantity();
-  }
-
-  SmallString<256> MangledName;
-  {
-    llvm::raw_svector_ostream Out(MangledName);
-    ABI.getMangleContext().mangleCXXRTTIBaseClassDescriptor(
-        Class.RD, Class.OffsetInVBase, VBPtrOffset, OffsetInVBTable,
-        Class.Flags, Out);
-  }
-
-  // Check to see if we've already declared this object.
-  if (auto BCD = Module.getNamedGlobal(MangledName))
-    return BCD;
-
-  // Forward-declare the base class descriptor.
-  auto Type = ABI.getBaseClassDescriptorType();
-  auto BCD =
-      new llvm::GlobalVariable(Module, Type, /*Constant=*/true, Linkage,
-                               /*Initializer=*/nullptr, MangledName);
-  if (BCD->isWeakForLinker())
-    BCD->setComdat(CGM.getModule().getOrInsertComdat(BCD->getName()));
-
-  // Initialize the BaseClassDescriptor.
-  llvm::Constant *Fields[] = {
-      ABI.getImageRelativeConstant(
-          ABI.getAddrOfRTTIDescriptor(Context.getTypeDeclType(Class.RD))),
-      llvm::ConstantInt::get(CGM.IntTy, Class.NumBases),
-      llvm::ConstantInt::get(CGM.IntTy, Class.OffsetInVBase),
-      llvm::ConstantInt::get(CGM.IntTy, VBPtrOffset),
-      llvm::ConstantInt::get(CGM.IntTy, OffsetInVBTable),
-      llvm::ConstantInt::get(CGM.IntTy, Class.Flags),
-      ABI.getImageRelativeConstant(
-          MSRTTIBuilder(ABI, Class.RD).getClassHierarchyDescriptor()),
-  };
-  BCD->setInitializer(llvm::ConstantStruct::get(Type, Fields));
-  return BCD;
-}
-
-llvm::GlobalVariable *
-MSRTTIBuilder::getCompleteObjectLocator(const VPtrInfo &Info) {
-  SmallString<256> MangledName;
-  {
-    llvm::raw_svector_ostream Out(MangledName);
-    ABI.getMangleContext().mangleCXXRTTICompleteObjectLocator(RD, Info.MangledPath, Out);
-  }
-
-  // Check to see if we've already computed this complete object locator.
-  if (auto COL = Module.getNamedGlobal(MangledName))
-    return COL;
-
-  // Compute the fields of the complete object locator.
-  int OffsetToTop = Info.FullOffsetInMDC.getQuantity();
-  int VFPtrOffset = 0;
-  // The offset includes the vtordisp if one exists.
-  if (const CXXRecordDecl *VBase = Info.getVBaseWithVPtr())
-    if (Context.getASTRecordLayout(RD)
-      .getVBaseOffsetsMap()
-      .find(VBase)
-      ->second.hasVtorDisp())
-      VFPtrOffset = Info.NonVirtualOffset.getQuantity() + 4;
-
-  // Forward-declare the complete object locator.
-  llvm::StructType *Type = ABI.getCompleteObjectLocatorType();
-  auto COL = new llvm::GlobalVariable(Module, Type, /*Constant=*/true, Linkage,
-    /*Initializer=*/nullptr, MangledName);
-
-  // Initialize the CompleteObjectLocator.
-  llvm::Constant *Fields[] = {
-      llvm::ConstantInt::get(CGM.IntTy, ABI.isImageRelative()),
-      llvm::ConstantInt::get(CGM.IntTy, OffsetToTop),
-      llvm::ConstantInt::get(CGM.IntTy, VFPtrOffset),
-      ABI.getImageRelativeConstant(
-          CGM.GetAddrOfRTTIDescriptor(Context.getTypeDeclType(RD))),
-      ABI.getImageRelativeConstant(getClassHierarchyDescriptor()),
-      ABI.getImageRelativeConstant(COL),
-  };
-  llvm::ArrayRef<llvm::Constant *> FieldsRef(Fields);
-  if (!ABI.isImageRelative())
-    FieldsRef = FieldsRef.drop_back();
-  COL->setInitializer(llvm::ConstantStruct::get(Type, FieldsRef));
-  if (COL->isWeakForLinker())
-    COL->setComdat(CGM.getModule().getOrInsertComdat(COL->getName()));
-  return COL;
-}
-
-static QualType decomposeTypeForEH(ASTContext &Context, QualType T,
-                                   bool &IsConst, bool &IsVolatile,
-                                   bool &IsUnaligned) {
-  T = Context.getExceptionObjectType(T);
-
-  // C++14 [except.handle]p3:
-  //   A handler is a match for an exception object of type E if [...]
-  //     - the handler is of type cv T or const T& where T is a pointer type and
-  //       E is a pointer type that can be converted to T by [...]
-  //         - a qualification conversion
-  IsConst = false;
-  IsVolatile = false;
-  IsUnaligned = false;
-  QualType PointeeType = T->getPointeeType();
-  if (!PointeeType.isNull()) {
-    IsConst = PointeeType.isConstQualified();
-    IsVolatile = PointeeType.isVolatileQualified();
-    IsUnaligned = PointeeType.getQualifiers().hasUnaligned();
-  }
-
-  // Member pointer types like "const int A::*" are represented by having RTTI
-  // for "int A::*" and separately storing the const qualifier.
-  if (const auto *MPTy = T->getAs<MemberPointerType>())
-    T = Context.getMemberPointerType(PointeeType.getUnqualifiedType(),
-                                     MPTy->getClass());
-
-  // Pointer types like "const int * const *" are represented by having RTTI
-  // for "const int **" and separately storing the const qualifier.
-  if (T->isPointerType())
-    T = Context.getPointerType(PointeeType.getUnqualifiedType());
-
-  return T;
-}
-
-CatchTypeInfo
-MicrosoftCXXABI::getAddrOfCXXCatchHandlerType(QualType Type,
-                                              QualType CatchHandlerType) {
-  // TypeDescriptors for exceptions never have qualified pointer types,
-  // qualifiers are stored separately in order to support qualification
-  // conversions.
-  bool IsConst, IsVolatile, IsUnaligned;
-  Type =
-      decomposeTypeForEH(getContext(), Type, IsConst, IsVolatile, IsUnaligned);
-
-  bool IsReference = CatchHandlerType->isReferenceType();
-
-  uint32_t Flags = 0;
-  if (IsConst)
-    Flags |= 1;
-  if (IsVolatile)
-    Flags |= 2;
-  if (IsUnaligned)
-    Flags |= 4;
-  if (IsReference)
-    Flags |= 8;
-
-  return CatchTypeInfo{getAddrOfRTTIDescriptor(Type)->stripPointerCasts(),
-                       Flags};
-}
-
-/// Gets a TypeDescriptor.  Returns a llvm::Constant * rather than a
-/// llvm::GlobalVariable * because different type descriptors have different
-/// types, and need to be abstracted.  They are abstracting by casting the
-/// address to an Int8PtrTy.
-llvm::Constant *MicrosoftCXXABI::getAddrOfRTTIDescriptor(QualType Type) {
-  SmallString<256> MangledName;
-  {
-    llvm::raw_svector_ostream Out(MangledName);
-    getMangleContext().mangleCXXRTTI(Type, Out);
-  }
-
-  // Check to see if we've already declared this TypeDescriptor.
-  if (llvm::GlobalVariable *GV = CGM.getModule().getNamedGlobal(MangledName))
-    return llvm::ConstantExpr::getBitCast(GV, CGM.Int8PtrTy);
-
-  // Note for the future: If we would ever like to do deferred emission of
-  // RTTI, check if emitting vtables opportunistically need any adjustment.
-
-  // Compute the fields for the TypeDescriptor.
-  SmallString<256> TypeInfoString;
-  {
-    llvm::raw_svector_ostream Out(TypeInfoString);
-    getMangleContext().mangleCXXRTTIName(Type, Out);
-  }
-
-  // Declare and initialize the TypeDescriptor.
-  llvm::Constant *Fields[] = {
-    getTypeInfoVTable(CGM),                        // VFPtr
-    llvm::ConstantPointerNull::get(CGM.Int8PtrTy), // Runtime data
-    llvm::ConstantDataArray::getString(CGM.getLLVMContext(), TypeInfoString)};
-  llvm::StructType *TypeDescriptorType =
-      getTypeDescriptorType(TypeInfoString);
-  auto *Var = new llvm::GlobalVariable(
-      CGM.getModule(), TypeDescriptorType, /*Constant=*/false,
-      getLinkageForRTTI(Type),
-      llvm::ConstantStruct::get(TypeDescriptorType, Fields),
-      MangledName);
-  if (Var->isWeakForLinker())
-    Var->setComdat(CGM.getModule().getOrInsertComdat(Var->getName()));
-  return llvm::ConstantExpr::getBitCast(Var, CGM.Int8PtrTy);
-}
-
-/// Gets or a creates a Microsoft CompleteObjectLocator.
-llvm::GlobalVariable *
-MicrosoftCXXABI::getMSCompleteObjectLocator(const CXXRecordDecl *RD,
-                                            const VPtrInfo &Info) {
-  return MSRTTIBuilder(*this, RD).getCompleteObjectLocator(Info);
-}
-
-static void emitCXXConstructor(CodeGenModule &CGM,
-                               const CXXConstructorDecl *ctor,
-                               StructorType ctorType) {
-  // There are no constructor variants, always emit the complete destructor.
-  llvm::Function *Fn = CGM.codegenCXXStructor(ctor, StructorType::Complete);
-  CGM.maybeSetTrivialComdat(*ctor, *Fn);
-}
-
-static void emitCXXDestructor(CodeGenModule &CGM, const CXXDestructorDecl *dtor,
-                              StructorType dtorType) {
-  // Emit the base destructor if the base and complete (vbase) destructors are
-  // equivalent. This effectively implements -mconstructor-aliases as part of
-  // the ABI.
-  if (dtorType == StructorType::Complete &&
-      dtor->getParent()->getNumVBases() == 0)
-    dtorType = StructorType::Base;
-
-  // The base destructor is equivalent to the base destructor of its
-  // base class if there is exactly one non-virtual base class with a
-  // non-trivial destructor, there are no fields with a non-trivial
-  // destructor, and the body of the destructor is trivial.
-  if (dtorType == StructorType::Base && !CGM.TryEmitBaseDestructorAsAlias(dtor))
-    return;
-
-  llvm::Function *Fn = CGM.codegenCXXStructor(dtor, dtorType);
-  if (Fn->isWeakForLinker())
-    Fn->setComdat(CGM.getModule().getOrInsertComdat(Fn->getName()));
-}
-
-void MicrosoftCXXABI::emitCXXStructor(const CXXMethodDecl *MD,
-                                      StructorType Type) {
-  if (auto *CD = dyn_cast<CXXConstructorDecl>(MD)) {
-    emitCXXConstructor(CGM, CD, Type);
-    return;
-  }
-  emitCXXDestructor(CGM, cast<CXXDestructorDecl>(MD), Type);
-}
-
-llvm::Function *
-MicrosoftCXXABI::getAddrOfCXXCtorClosure(const CXXConstructorDecl *CD,
-                                         CXXCtorType CT) {
-  assert(CT == Ctor_CopyingClosure || CT == Ctor_DefaultClosure);
-
-  // Calculate the mangled name.
-  SmallString<256> ThunkName;
-  llvm::raw_svector_ostream Out(ThunkName);
-  getMangleContext().mangleCXXCtor(CD, CT, Out);
-
-  // If the thunk has been generated previously, just return it.
-  if (llvm::GlobalValue *GV = CGM.getModule().getNamedValue(ThunkName))
-    return cast<llvm::Function>(GV);
-
-  // Create the llvm::Function.
-  const CGFunctionInfo &FnInfo = CGM.getTypes().arrangeMSCtorClosure(CD, CT);
-  llvm::FunctionType *ThunkTy = CGM.getTypes().GetFunctionType(FnInfo);
-  const CXXRecordDecl *RD = CD->getParent();
-  QualType RecordTy = getContext().getRecordType(RD);
-  llvm::Function *ThunkFn = llvm::Function::Create(
-      ThunkTy, getLinkageForRTTI(RecordTy), ThunkName.str(), &CGM.getModule());
-  ThunkFn->setCallingConv(static_cast<llvm::CallingConv::ID>(
-      FnInfo.getEffectiveCallingConvention()));
-  if (ThunkFn->isWeakForLinker())
-    ThunkFn->setComdat(CGM.getModule().getOrInsertComdat(ThunkFn->getName()));
-  bool IsCopy = CT == Ctor_CopyingClosure;
-
-  // Start codegen.
-  CodeGenFunction CGF(CGM);
-  CGF.CurGD = GlobalDecl(CD, Ctor_Complete);
-
-  // Build FunctionArgs.
-  FunctionArgList FunctionArgs;
-
-  // A constructor always starts with a 'this' pointer as its first argument.
-  buildThisParam(CGF, FunctionArgs);
-
-  // Following the 'this' pointer is a reference to the source object that we
-  // are copying from.
-  ImplicitParamDecl SrcParam(
-      getContext(), /*DC=*/nullptr, SourceLocation(),
-      &getContext().Idents.get("src"),
-      getContext().getLValueReferenceType(RecordTy,
-                                          /*SpelledAsLValue=*/true),
-      ImplicitParamDecl::Other);
-  if (IsCopy)
-    FunctionArgs.push_back(&SrcParam);
-
-  // Constructors for classes which utilize virtual bases have an additional
-  // parameter which indicates whether or not it is being delegated to by a more
-  // derived constructor.
-  ImplicitParamDecl IsMostDerived(getContext(), /*DC=*/nullptr,
-                                  SourceLocation(),
-                                  &getContext().Idents.get("is_most_derived"),
-                                  getContext().IntTy, ImplicitParamDecl::Other);
-  // Only add the parameter to the list if the class has virtual bases.
-  if (RD->getNumVBases() > 0)
-    FunctionArgs.push_back(&IsMostDerived);
-
-  // Start defining the function.
-  auto NL = ApplyDebugLocation::CreateEmpty(CGF);
-  CGF.StartFunction(GlobalDecl(), FnInfo.getReturnType(), ThunkFn, FnInfo,
-                    FunctionArgs, CD->getLocation(), SourceLocation());
-  // Create a scope with an artificial location for the body of this function.
-  auto AL = ApplyDebugLocation::CreateArtificial(CGF);
-  setCXXABIThisValue(CGF, loadIncomingCXXThis(CGF));
-  llvm::Value *This = getThisValue(CGF);
-
-  llvm::Value *SrcVal =
-      IsCopy ? CGF.Builder.CreateLoad(CGF.GetAddrOfLocalVar(&SrcParam), "src")
-             : nullptr;
-
-  CallArgList Args;
-
-  // Push the this ptr.
-  Args.add(RValue::get(This), CD->getThisType());
-
-  // Push the src ptr.
-  if (SrcVal)
-    Args.add(RValue::get(SrcVal), SrcParam.getType());
-
-  // Add the rest of the default arguments.
-  SmallVector<const Stmt *, 4> ArgVec;
-  ArrayRef<ParmVarDecl *> params = CD->parameters().drop_front(IsCopy ? 1 : 0);
-  for (const ParmVarDecl *PD : params) {
-    assert(PD->hasDefaultArg() && "ctor closure lacks default args");
-    ArgVec.push_back(PD->getDefaultArg());
-  }
-
-  CodeGenFunction::RunCleanupsScope Cleanups(CGF);
-
-  const auto *FPT = CD->getType()->castAs<FunctionProtoType>();
-  CGF.EmitCallArgs(Args, FPT, llvm::makeArrayRef(ArgVec), CD, IsCopy ? 1 : 0);
-
-  // Insert any ABI-specific implicit constructor arguments.
-  AddedStructorArgs ExtraArgs =
-      addImplicitConstructorArgs(CGF, CD, Ctor_Complete,
-                                 /*ForVirtualBase=*/false,
-                                 /*Delegating=*/false, Args);
-  // Call the destructor with our arguments.
-  llvm::Constant *CalleePtr =
-    CGM.getAddrOfCXXStructor(CD, StructorType::Complete);
-  CGCallee Callee =
-      CGCallee::forDirect(CalleePtr, GlobalDecl(CD, Ctor_Complete));
-  const CGFunctionInfo &CalleeInfo = CGM.getTypes().arrangeCXXConstructorCall(
-      Args, CD, Ctor_Complete, ExtraArgs.Prefix, ExtraArgs.Suffix);
-  CGF.EmitCall(CalleeInfo, Callee, ReturnValueSlot(), Args);
-
-  Cleanups.ForceCleanup();
-
-  // Emit the ret instruction, remove any temporary instructions created for the
-  // aid of CodeGen.
-  CGF.FinishFunction(SourceLocation());
-
-  return ThunkFn;
-}
-
-llvm::Constant *MicrosoftCXXABI::getCatchableType(QualType T,
-                                                  uint32_t NVOffset,
-                                                  int32_t VBPtrOffset,
-                                                  uint32_t VBIndex) {
-  assert(!T->isReferenceType());
-
-  CXXRecordDecl *RD = T->getAsCXXRecordDecl();
-  const CXXConstructorDecl *CD =
-      RD ? CGM.getContext().getCopyConstructorForExceptionObject(RD) : nullptr;
-  CXXCtorType CT = Ctor_Complete;
-  if (CD)
-    if (!hasDefaultCXXMethodCC(getContext(), CD) || CD->getNumParams() != 1)
-      CT = Ctor_CopyingClosure;
-
-  uint32_t Size = getContext().getTypeSizeInChars(T).getQuantity();
-  SmallString<256> MangledName;
-  {
-    llvm::raw_svector_ostream Out(MangledName);
-    getMangleContext().mangleCXXCatchableType(T, CD, CT, Size, NVOffset,
-                                              VBPtrOffset, VBIndex, Out);
-  }
-  if (llvm::GlobalVariable *GV = CGM.getModule().getNamedGlobal(MangledName))
-    return getImageRelativeConstant(GV);
-
-  // The TypeDescriptor is used by the runtime to determine if a catch handler
-  // is appropriate for the exception object.
-  llvm::Constant *TD = getImageRelativeConstant(getAddrOfRTTIDescriptor(T));
-
-  // The runtime is responsible for calling the copy constructor if the
-  // exception is caught by value.
-  llvm::Constant *CopyCtor;
-  if (CD) {
-    if (CT == Ctor_CopyingClosure)
-      CopyCtor = getAddrOfCXXCtorClosure(CD, Ctor_CopyingClosure);
-    else
-      CopyCtor = CGM.getAddrOfCXXStructor(CD, StructorType::Complete);
-
-    CopyCtor = llvm::ConstantExpr::getBitCast(CopyCtor, CGM.Int8PtrTy);
-  } else {
-    CopyCtor = llvm::Constant::getNullValue(CGM.Int8PtrTy);
-  }
-  CopyCtor = getImageRelativeConstant(CopyCtor);
-
-  bool IsScalar = !RD;
-  bool HasVirtualBases = false;
-  bool IsStdBadAlloc = false; // std::bad_alloc is special for some reason.
-  QualType PointeeType = T;
-  if (T->isPointerType())
-    PointeeType = T->getPointeeType();
-  if (const CXXRecordDecl *RD = PointeeType->getAsCXXRecordDecl()) {
-    HasVirtualBases = RD->getNumVBases() > 0;
-    if (IdentifierInfo *II = RD->getIdentifier())
-      IsStdBadAlloc = II->isStr("bad_alloc") && RD->isInStdNamespace();
-  }
-
-  // Encode the relevant CatchableType properties into the Flags bitfield.
-  // FIXME: Figure out how bits 2 or 8 can get set.
-  uint32_t Flags = 0;
-  if (IsScalar)
-    Flags |= 1;
-  if (HasVirtualBases)
-    Flags |= 4;
-  if (IsStdBadAlloc)
-    Flags |= 16;
-
-  llvm::Constant *Fields[] = {
-      llvm::ConstantInt::get(CGM.IntTy, Flags),       // Flags
-      TD,                                             // TypeDescriptor
-      llvm::ConstantInt::get(CGM.IntTy, NVOffset),    // NonVirtualAdjustment
-      llvm::ConstantInt::get(CGM.IntTy, VBPtrOffset), // OffsetToVBPtr
-      llvm::ConstantInt::get(CGM.IntTy, VBIndex),     // VBTableIndex
-      llvm::ConstantInt::get(CGM.IntTy, Size),        // Size
-      CopyCtor                                        // CopyCtor
-  };
-  llvm::StructType *CTType = getCatchableTypeType();
-  auto *GV = new llvm::GlobalVariable(
-      CGM.getModule(), CTType, /*Constant=*/true, getLinkageForRTTI(T),
-      llvm::ConstantStruct::get(CTType, Fields), MangledName);
-  GV->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-  GV->setSection(".xdata");
-  if (GV->isWeakForLinker())
-    GV->setComdat(CGM.getModule().getOrInsertComdat(GV->getName()));
-  return getImageRelativeConstant(GV);
-}
-
-llvm::GlobalVariable *MicrosoftCXXABI::getCatchableTypeArray(QualType T) {
-  assert(!T->isReferenceType());
-
-  // See if we've already generated a CatchableTypeArray for this type before.
-  llvm::GlobalVariable *&CTA = CatchableTypeArrays[T];
-  if (CTA)
-    return CTA;
-
-  // Ensure that we don't have duplicate entries in our CatchableTypeArray by
-  // using a SmallSetVector.  Duplicates may arise due to virtual bases
-  // occurring more than once in the hierarchy.
-  llvm::SmallSetVector<llvm::Constant *, 2> CatchableTypes;
-
-  // C++14 [except.handle]p3:
-  //   A handler is a match for an exception object of type E if [...]
-  //     - the handler is of type cv T or cv T& and T is an unambiguous public
-  //       base class of E, or
-  //     - the handler is of type cv T or const T& where T is a pointer type and
-  //       E is a pointer type that can be converted to T by [...]
-  //         - a standard pointer conversion (4.10) not involving conversions to
-  //           pointers to private or protected or ambiguous classes
-  const CXXRecordDecl *MostDerivedClass = nullptr;
-  bool IsPointer = T->isPointerType();
-  if (IsPointer)
-    MostDerivedClass = T->getPointeeType()->getAsCXXRecordDecl();
-  else
-    MostDerivedClass = T->getAsCXXRecordDecl();
-
-  // Collect all the unambiguous public bases of the MostDerivedClass.
-  if (MostDerivedClass) {
-    const ASTContext &Context = getContext();
-    const ASTRecordLayout &MostDerivedLayout =
-        Context.getASTRecordLayout(MostDerivedClass);
-    MicrosoftVTableContext &VTableContext = CGM.getMicrosoftVTableContext();
-    SmallVector<MSRTTIClass, 8> Classes;
-    serializeClassHierarchy(Classes, MostDerivedClass);
-    Classes.front().initialize(/*Parent=*/nullptr, /*Specifier=*/nullptr);
-    detectAmbiguousBases(Classes);
-    for (const MSRTTIClass &Class : Classes) {
-      // Skip any ambiguous or private bases.
-      if (Class.Flags &
-          (MSRTTIClass::IsPrivateOnPath | MSRTTIClass::IsAmbiguous))
-        continue;
-      // Write down how to convert from a derived pointer to a base pointer.
-      uint32_t OffsetInVBTable = 0;
-      int32_t VBPtrOffset = -1;
-      if (Class.VirtualRoot) {
-        OffsetInVBTable =
-          VTableContext.getVBTableIndex(MostDerivedClass, Class.VirtualRoot)*4;
-        VBPtrOffset = MostDerivedLayout.getVBPtrOffset().getQuantity();
-      }
-
-      // Turn our record back into a pointer if the exception object is a
-      // pointer.
-      QualType RTTITy = QualType(Class.RD->getTypeForDecl(), 0);
-      if (IsPointer)
-        RTTITy = Context.getPointerType(RTTITy);
-      CatchableTypes.insert(getCatchableType(RTTITy, Class.OffsetInVBase,
-                                             VBPtrOffset, OffsetInVBTable));
-    }
-  }
-
-  // C++14 [except.handle]p3:
-  //   A handler is a match for an exception object of type E if
-  //     - The handler is of type cv T or cv T& and E and T are the same type
-  //       (ignoring the top-level cv-qualifiers)
-  CatchableTypes.insert(getCatchableType(T));
-
-  // C++14 [except.handle]p3:
-  //   A handler is a match for an exception object of type E if
-  //     - the handler is of type cv T or const T& where T is a pointer type and
-  //       E is a pointer type that can be converted to T by [...]
-  //         - a standard pointer conversion (4.10) not involving conversions to
-  //           pointers to private or protected or ambiguous classes
-  //
-  // C++14 [conv.ptr]p2:
-  //   A prvalue of type "pointer to cv T," where T is an object type, can be
-  //   converted to a prvalue of type "pointer to cv void".
-  if (IsPointer && T->getPointeeType()->isObjectType())
-    CatchableTypes.insert(getCatchableType(getContext().VoidPtrTy));
-
-  // C++14 [except.handle]p3:
-  //   A handler is a match for an exception object of type E if [...]
-  //     - the handler is of type cv T or const T& where T is a pointer or
-  //       pointer to member type and E is std::nullptr_t.
-  //
-  // We cannot possibly list all possible pointer types here, making this
-  // implementation incompatible with the standard.  However, MSVC includes an
-  // entry for pointer-to-void in this case.  Let's do the same.
-  if (T->isNullPtrType())
-    CatchableTypes.insert(getCatchableType(getContext().VoidPtrTy));
-
-  uint32_t NumEntries = CatchableTypes.size();
-  llvm::Type *CTType =
-      getImageRelativeType(getCatchableTypeType()->getPointerTo());
-  llvm::ArrayType *AT = llvm::ArrayType::get(CTType, NumEntries);
-  llvm::StructType *CTAType = getCatchableTypeArrayType(NumEntries);
-  llvm::Constant *Fields[] = {
-      llvm::ConstantInt::get(CGM.IntTy, NumEntries),    // NumEntries
-      llvm::ConstantArray::get(
-          AT, llvm::makeArrayRef(CatchableTypes.begin(),
-                                 CatchableTypes.end())) // CatchableTypes
-  };
-  SmallString<256> MangledName;
-  {
-    llvm::raw_svector_ostream Out(MangledName);
-    getMangleContext().mangleCXXCatchableTypeArray(T, NumEntries, Out);
-  }
-  CTA = new llvm::GlobalVariable(
-      CGM.getModule(), CTAType, /*Constant=*/true, getLinkageForRTTI(T),
-      llvm::ConstantStruct::get(CTAType, Fields), MangledName);
-  CTA->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-  CTA->setSection(".xdata");
-  if (CTA->isWeakForLinker())
-    CTA->setComdat(CGM.getModule().getOrInsertComdat(CTA->getName()));
-  return CTA;
-}
-
-llvm::GlobalVariable *MicrosoftCXXABI::getThrowInfo(QualType T) {
-  bool IsConst, IsVolatile, IsUnaligned;
-  T = decomposeTypeForEH(getContext(), T, IsConst, IsVolatile, IsUnaligned);
-
-  // The CatchableTypeArray enumerates the various (CV-unqualified) types that
-  // the exception object may be caught as.
-  llvm::GlobalVariable *CTA = getCatchableTypeArray(T);
-  // The first field in a CatchableTypeArray is the number of CatchableTypes.
-  // This is used as a component of the mangled name which means that we need to
-  // know what it is in order to see if we have previously generated the
-  // ThrowInfo.
-  uint32_t NumEntries =
-      cast<llvm::ConstantInt>(CTA->getInitializer()->getAggregateElement(0U))
-          ->getLimitedValue();
-
-  SmallString<256> MangledName;
-  {
-    llvm::raw_svector_ostream Out(MangledName);
-    getMangleContext().mangleCXXThrowInfo(T, IsConst, IsVolatile, IsUnaligned,
-                                          NumEntries, Out);
-  }
-
-  // Reuse a previously generated ThrowInfo if we have generated an appropriate
-  // one before.
-  if (llvm::GlobalVariable *GV = CGM.getModule().getNamedGlobal(MangledName))
-    return GV;
-
-  // The RTTI TypeDescriptor uses an unqualified type but catch clauses must
-  // be at least as CV qualified.  Encode this requirement into the Flags
-  // bitfield.
-  uint32_t Flags = 0;
-  if (IsConst)
-    Flags |= 1;
-  if (IsVolatile)
-    Flags |= 2;
-  if (IsUnaligned)
-    Flags |= 4;
-
-  // The cleanup-function (a destructor) must be called when the exception
-  // object's lifetime ends.
-  llvm::Constant *CleanupFn = llvm::Constant::getNullValue(CGM.Int8PtrTy);
-  if (const CXXRecordDecl *RD = T->getAsCXXRecordDecl())
-    if (CXXDestructorDecl *DtorD = RD->getDestructor())
-      if (!DtorD->isTrivial())
-        CleanupFn = llvm::ConstantExpr::getBitCast(
-            CGM.getAddrOfCXXStructor(DtorD, StructorType::Complete),
-            CGM.Int8PtrTy);
-  // This is unused as far as we can tell, initialize it to null.
-  llvm::Constant *ForwardCompat =
-      getImageRelativeConstant(llvm::Constant::getNullValue(CGM.Int8PtrTy));
-  llvm::Constant *PointerToCatchableTypes = getImageRelativeConstant(
-      llvm::ConstantExpr::getBitCast(CTA, CGM.Int8PtrTy));
-  llvm::StructType *TIType = getThrowInfoType();
-  llvm::Constant *Fields[] = {
-      llvm::ConstantInt::get(CGM.IntTy, Flags), // Flags
-      getImageRelativeConstant(CleanupFn),      // CleanupFn
-      ForwardCompat,                            // ForwardCompat
-      PointerToCatchableTypes                   // CatchableTypeArray
-  };
-  auto *GV = new llvm::GlobalVariable(
-      CGM.getModule(), TIType, /*Constant=*/true, getLinkageForRTTI(T),
-      llvm::ConstantStruct::get(TIType, Fields), StringRef(MangledName));
-  GV->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-  GV->setSection(".xdata");
-  if (GV->isWeakForLinker())
-    GV->setComdat(CGM.getModule().getOrInsertComdat(GV->getName()));
-  return GV;
-}
-
-void MicrosoftCXXABI::emitThrow(CodeGenFunction &CGF, const CXXThrowExpr *E) {
-  const Expr *SubExpr = E->getSubExpr();
-  QualType ThrowType = SubExpr->getType();
-  // The exception object lives on the stack and it's address is passed to the
-  // runtime function.
-  Address AI = CGF.CreateMemTemp(ThrowType);
-  CGF.EmitAnyExprToMem(SubExpr, AI, ThrowType.getQualifiers(),
-                       /*IsInit=*/true);
-
-  // The so-called ThrowInfo is used to describe how the exception object may be
-  // caught.
-  llvm::GlobalVariable *TI = getThrowInfo(ThrowType);
-
-  // Call into the runtime to throw the exception.
-  llvm::Value *Args[] = {
-    CGF.Builder.CreateBitCast(AI.getPointer(), CGM.Int8PtrTy),
-    TI
-  };
-  CGF.EmitNoreturnRuntimeCallOrInvoke(getThrowFn(), Args);
-}
-
-std::pair<llvm::Value *, const CXXRecordDecl *>
-MicrosoftCXXABI::LoadVTablePtr(CodeGenFunction &CGF, Address This,
-                               const CXXRecordDecl *RD) {
-  std::tie(This, std::ignore, RD) =
-      performBaseAdjustment(CGF, This, QualType(RD->getTypeForDecl(), 0));
-  return {CGF.GetVTablePtr(This, CGM.Int8PtrTy, RD), RD};
-}