1 files changed, 0 insertions, 2929 deletions

diff --git a/contrib/llvm/tools/clang/lib/CodeGen/CGClass.cpp b/contrib/llvm/tools/clang/lib/CodeGen/CGClass.cpp
deleted file mode 100644
index c8bb63c5c4b1..000000000000
--- a/contrib/llvm/tools/clang/lib/CodeGen/CGClass.cpp
+++ /dev/null
@@ -1,2929 +0,0 @@
-//===--- CGClass.cpp - Emit LLVM Code for C++ classes -----------*- C++ -*-===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// This contains code dealing with C++ code generation of classes
-//
-//===----------------------------------------------------------------------===//
-
-#include "CGBlocks.h"
-#include "CGCXXABI.h"
-#include "CGDebugInfo.h"
-#include "CGRecordLayout.h"
-#include "CodeGenFunction.h"
-#include "TargetInfo.h"
-#include "clang/AST/CXXInheritance.h"
-#include "clang/AST/DeclTemplate.h"
-#include "clang/AST/EvaluatedExprVisitor.h"
-#include "clang/AST/RecordLayout.h"
-#include "clang/AST/StmtCXX.h"
-#include "clang/Basic/CodeGenOptions.h"
-#include "clang/Basic/TargetBuiltins.h"
-#include "clang/CodeGen/CGFunctionInfo.h"
-#include "llvm/IR/Intrinsics.h"
-#include "llvm/IR/Metadata.h"
-#include "llvm/Transforms/Utils/SanitizerStats.h"
-
-using namespace clang;
-using namespace CodeGen;
-
-/// Return the best known alignment for an unknown pointer to a
-/// particular class.
-CharUnits CodeGenModule::getClassPointerAlignment(const CXXRecordDecl *RD) {
-  if (!RD->isCompleteDefinition())
-    return CharUnits::One(); // Hopefully won't be used anywhere.
-
-  auto &layout = getContext().getASTRecordLayout(RD);
-
-  // If the class is final, then we know that the pointer points to an
-  // object of that type and can use the full alignment.
-  if (RD->hasAttr<FinalAttr>()) {
-    return layout.getAlignment();
-
-  // Otherwise, we have to assume it could be a subclass.
-  } else {
-    return layout.getNonVirtualAlignment();
-  }
-}
-
-/// Return the best known alignment for a pointer to a virtual base,
-/// given the alignment of a pointer to the derived class.
-CharUnits CodeGenModule::getVBaseAlignment(CharUnits actualDerivedAlign,
-                                           const CXXRecordDecl *derivedClass,
-                                           const CXXRecordDecl *vbaseClass) {
-  // The basic idea here is that an underaligned derived pointer might
-  // indicate an underaligned base pointer.
-
-  assert(vbaseClass->isCompleteDefinition());
-  auto &baseLayout = getContext().getASTRecordLayout(vbaseClass);
-  CharUnits expectedVBaseAlign = baseLayout.getNonVirtualAlignment();
-
-  return getDynamicOffsetAlignment(actualDerivedAlign, derivedClass,
-                                   expectedVBaseAlign);
-}
-
-CharUnits
-CodeGenModule::getDynamicOffsetAlignment(CharUnits actualBaseAlign,
-                                         const CXXRecordDecl *baseDecl,
-                                         CharUnits expectedTargetAlign) {
-  // If the base is an incomplete type (which is, alas, possible with
-  // member pointers), be pessimistic.
-  if (!baseDecl->isCompleteDefinition())
-    return std::min(actualBaseAlign, expectedTargetAlign);
-
-  auto &baseLayout = getContext().getASTRecordLayout(baseDecl);
-  CharUnits expectedBaseAlign = baseLayout.getNonVirtualAlignment();
-
-  // If the class is properly aligned, assume the target offset is, too.
-  //
-  // This actually isn't necessarily the right thing to do --- if the
-  // class is a complete object, but it's only properly aligned for a
-  // base subobject, then the alignments of things relative to it are
-  // probably off as well.  (Note that this requires the alignment of
-  // the target to be greater than the NV alignment of the derived
-  // class.)
-  //
-  // However, our approach to this kind of under-alignment can only
-  // ever be best effort; after all, we're never going to propagate
-  // alignments through variables or parameters.  Note, in particular,
-  // that constructing a polymorphic type in an address that's less
-  // than pointer-aligned will generally trap in the constructor,
-  // unless we someday add some sort of attribute to change the
-  // assumed alignment of 'this'.  So our goal here is pretty much
-  // just to allow the user to explicitly say that a pointer is
-  // under-aligned and then safely access its fields and vtables.
-  if (actualBaseAlign >= expectedBaseAlign) {
-    return expectedTargetAlign;
-  }
-
-  // Otherwise, we might be offset by an arbitrary multiple of the
-  // actual alignment.  The correct adjustment is to take the min of
-  // the two alignments.
-  return std::min(actualBaseAlign, expectedTargetAlign);
-}
-
-Address CodeGenFunction::LoadCXXThisAddress() {
-  assert(CurFuncDecl && "loading 'this' without a func declaration?");
-  assert(isa<CXXMethodDecl>(CurFuncDecl));
-
-  // Lazily compute CXXThisAlignment.
-  if (CXXThisAlignment.isZero()) {
-    // Just use the best known alignment for the parent.
-    // TODO: if we're currently emitting a complete-object ctor/dtor,
-    // we can always use the complete-object alignment.
-    auto RD = cast<CXXMethodDecl>(CurFuncDecl)->getParent();
-    CXXThisAlignment = CGM.getClassPointerAlignment(RD);
-  }
-
-  return Address(LoadCXXThis(), CXXThisAlignment);
-}
-
-/// Emit the address of a field using a member data pointer.
-///
-/// \param E Only used for emergency diagnostics
-Address
-CodeGenFunction::EmitCXXMemberDataPointerAddress(const Expr *E, Address base,
-                                                 llvm::Value *memberPtr,
-                                      const MemberPointerType *memberPtrType,
-                                                 LValueBaseInfo *BaseInfo,
-                                                 TBAAAccessInfo *TBAAInfo) {
-  // Ask the ABI to compute the actual address.
-  llvm::Value *ptr =
-    CGM.getCXXABI().EmitMemberDataPointerAddress(*this, E, base,
-                                                 memberPtr, memberPtrType);
-
-  QualType memberType = memberPtrType->getPointeeType();
-  CharUnits memberAlign = getNaturalTypeAlignment(memberType, BaseInfo,
-                                                  TBAAInfo);
-  memberAlign =
-    CGM.getDynamicOffsetAlignment(base.getAlignment(),
-                            memberPtrType->getClass()->getAsCXXRecordDecl(),
-                                  memberAlign);
-  return Address(ptr, memberAlign);
-}
-
-CharUnits CodeGenModule::computeNonVirtualBaseClassOffset(
-    const CXXRecordDecl *DerivedClass, CastExpr::path_const_iterator Start,
-    CastExpr::path_const_iterator End) {
-  CharUnits Offset = CharUnits::Zero();
-
-  const ASTContext &Context = getContext();
-  const CXXRecordDecl *RD = DerivedClass;
-
-  for (CastExpr::path_const_iterator I = Start; I != End; ++I) {
-    const CXXBaseSpecifier *Base = *I;
-    assert(!Base->isVirtual() && "Should not see virtual bases here!");
-
-    // Get the layout.
-    const ASTRecordLayout &Layout = Context.getASTRecordLayout(RD);
-
-    const CXXRecordDecl *BaseDecl =
-      cast<CXXRecordDecl>(Base->getType()->getAs<RecordType>()->getDecl());
-
-    // Add the offset.
-    Offset += Layout.getBaseClassOffset(BaseDecl);
-
-    RD = BaseDecl;
-  }
-
-  return Offset;
-}
-
-llvm::Constant *
-CodeGenModule::GetNonVirtualBaseClassOffset(const CXXRecordDecl *ClassDecl,
-                                   CastExpr::path_const_iterator PathBegin,
-                                   CastExpr::path_const_iterator PathEnd) {
-  assert(PathBegin != PathEnd && "Base path should not be empty!");
-
-  CharUnits Offset =
-      computeNonVirtualBaseClassOffset(ClassDecl, PathBegin, PathEnd);
-  if (Offset.isZero())
-    return nullptr;
-
-  llvm::Type *PtrDiffTy =
-  Types.ConvertType(getContext().getPointerDiffType());
-
-  return llvm::ConstantInt::get(PtrDiffTy, Offset.getQuantity());
-}
-
-/// Gets the address of a direct base class within a complete object.
-/// This should only be used for (1) non-virtual bases or (2) virtual bases
-/// when the type is known to be complete (e.g. in complete destructors).
-///
-/// The object pointed to by 'This' is assumed to be non-null.
-Address
-CodeGenFunction::GetAddressOfDirectBaseInCompleteClass(Address This,
-                                                   const CXXRecordDecl *Derived,
-                                                   const CXXRecordDecl *Base,
-                                                   bool BaseIsVirtual) {
-  // 'this' must be a pointer (in some address space) to Derived.
-  assert(This.getElementType() == ConvertType(Derived));
-
-  // Compute the offset of the virtual base.
-  CharUnits Offset;
-  const ASTRecordLayout &Layout = getContext().getASTRecordLayout(Derived);
-  if (BaseIsVirtual)
-    Offset = Layout.getVBaseClassOffset(Base);
-  else
-    Offset = Layout.getBaseClassOffset(Base);
-
-  // Shift and cast down to the base type.
-  // TODO: for complete types, this should be possible with a GEP.
-  Address V = This;
-  if (!Offset.isZero()) {
-    V = Builder.CreateElementBitCast(V, Int8Ty);
-    V = Builder.CreateConstInBoundsByteGEP(V, Offset);
-  }
-  V = Builder.CreateElementBitCast(V, ConvertType(Base));
-
-  return V;
-}
-
-static Address
-ApplyNonVirtualAndVirtualOffset(CodeGenFunction &CGF, Address addr,
-                                CharUnits nonVirtualOffset,
-                                llvm::Value *virtualOffset,
-                                const CXXRecordDecl *derivedClass,
-                                const CXXRecordDecl *nearestVBase) {
-  // Assert that we have something to do.
-  assert(!nonVirtualOffset.isZero() || virtualOffset != nullptr);
-
-  // Compute the offset from the static and dynamic components.
-  llvm::Value *baseOffset;
-  if (!nonVirtualOffset.isZero()) {
-    baseOffset = llvm::ConstantInt::get(CGF.PtrDiffTy,
-                                        nonVirtualOffset.getQuantity());
-    if (virtualOffset) {
-      baseOffset = CGF.Builder.CreateAdd(virtualOffset, baseOffset);
-    }
-  } else {
-    baseOffset = virtualOffset;
-  }
-
-  // Apply the base offset.
-  llvm::Value *ptr = addr.getPointer();
-  ptr = CGF.Builder.CreateBitCast(ptr, CGF.Int8PtrTy);
-  ptr = CGF.Builder.CreateInBoundsGEP(ptr, baseOffset, "add.ptr");
-
-  // If we have a virtual component, the alignment of the result will
-  // be relative only to the known alignment of that vbase.
-  CharUnits alignment;
-  if (virtualOffset) {
-    assert(nearestVBase && "virtual offset without vbase?");
-    alignment = CGF.CGM.getVBaseAlignment(addr.getAlignment(),
-                                          derivedClass, nearestVBase);
-  } else {
-    alignment = addr.getAlignment();
-  }
-  alignment = alignment.alignmentAtOffset(nonVirtualOffset);
-
-  return Address(ptr, alignment);
-}
-
-Address CodeGenFunction::GetAddressOfBaseClass(
-    Address Value, const CXXRecordDecl *Derived,
-    CastExpr::path_const_iterator PathBegin,
-    CastExpr::path_const_iterator PathEnd, bool NullCheckValue,
-    SourceLocation Loc) {
-  assert(PathBegin != PathEnd && "Base path should not be empty!");
-
-  CastExpr::path_const_iterator Start = PathBegin;
-  const CXXRecordDecl *VBase = nullptr;
-
-  // Sema has done some convenient canonicalization here: if the
-  // access path involved any virtual steps, the conversion path will
-  // *start* with a step down to the correct virtual base subobject,
-  // and hence will not require any further steps.
-  if ((*Start)->isVirtual()) {
-    VBase =
-      cast<CXXRecordDecl>((*Start)->getType()->getAs<RecordType>()->getDecl());
-    ++Start;
-  }
-
-  // Compute the static offset of the ultimate destination within its
-  // allocating subobject (the virtual base, if there is one, or else
-  // the "complete" object that we see).
-  CharUnits NonVirtualOffset = CGM.computeNonVirtualBaseClassOffset(
-      VBase ? VBase : Derived, Start, PathEnd);
-
-  // If there's a virtual step, we can sometimes "devirtualize" it.
-  // For now, that's limited to when the derived type is final.
-  // TODO: "devirtualize" this for accesses to known-complete objects.
-  if (VBase && Derived->hasAttr<FinalAttr>()) {
-    const ASTRecordLayout &layout = getContext().getASTRecordLayout(Derived);
-    CharUnits vBaseOffset = layout.getVBaseClassOffset(VBase);
-    NonVirtualOffset += vBaseOffset;
-    VBase = nullptr; // we no longer have a virtual step
-  }
-
-  // Get the base pointer type.
-  llvm::Type *BasePtrTy =
-      ConvertType((PathEnd[-1])->getType())
-          ->getPointerTo(Value.getType()->getPointerAddressSpace());
-
-  QualType DerivedTy = getContext().getRecordType(Derived);
-  CharUnits DerivedAlign = CGM.getClassPointerAlignment(Derived);
-
-  // If the static offset is zero and we don't have a virtual step,
-  // just do a bitcast; null checks are unnecessary.
-  if (NonVirtualOffset.isZero() && !VBase) {
-    if (sanitizePerformTypeCheck()) {
-      SanitizerSet SkippedChecks;
-      SkippedChecks.set(SanitizerKind::Null, !NullCheckValue);
-      EmitTypeCheck(TCK_Upcast, Loc, Value.getPointer(),
-                    DerivedTy, DerivedAlign, SkippedChecks);
-    }
-    return Builder.CreateBitCast(Value, BasePtrTy);
-  }
-
-  llvm::BasicBlock *origBB = nullptr;
-  llvm::BasicBlock *endBB = nullptr;
-
-  // Skip over the offset (and the vtable load) if we're supposed to
-  // null-check the pointer.
-  if (NullCheckValue) {
-    origBB = Builder.GetInsertBlock();
-    llvm::BasicBlock *notNullBB = createBasicBlock("cast.notnull");
-    endBB = createBasicBlock("cast.end");
-
-    llvm::Value *isNull = Builder.CreateIsNull(Value.getPointer());
-    Builder.CreateCondBr(isNull, endBB, notNullBB);
-    EmitBlock(notNullBB);
-  }
-
-  if (sanitizePerformTypeCheck()) {
-    SanitizerSet SkippedChecks;
-    SkippedChecks.set(SanitizerKind::Null, true);
-    EmitTypeCheck(VBase ? TCK_UpcastToVirtualBase : TCK_Upcast, Loc,
-                  Value.getPointer(), DerivedTy, DerivedAlign, SkippedChecks);
-  }
-
-  // Compute the virtual offset.
-  llvm::Value *VirtualOffset = nullptr;
-  if (VBase) {
-    VirtualOffset =
-      CGM.getCXXABI().GetVirtualBaseClassOffset(*this, Value, Derived, VBase);
-  }
-
-  // Apply both offsets.
-  Value = ApplyNonVirtualAndVirtualOffset(*this, Value, NonVirtualOffset,
-                                          VirtualOffset, Derived, VBase);
-
-  // Cast to the destination type.
-  Value = Builder.CreateBitCast(Value, BasePtrTy);
-
-  // Build a phi if we needed a null check.
-  if (NullCheckValue) {
-    llvm::BasicBlock *notNullBB = Builder.GetInsertBlock();
-    Builder.CreateBr(endBB);
-    EmitBlock(endBB);
-
-    llvm::PHINode *PHI = Builder.CreatePHI(BasePtrTy, 2, "cast.result");
-    PHI->addIncoming(Value.getPointer(), notNullBB);
-    PHI->addIncoming(llvm::Constant::getNullValue(BasePtrTy), origBB);
-    Value = Address(PHI, Value.getAlignment());
-  }
-
-  return Value;
-}
-
-Address
-CodeGenFunction::GetAddressOfDerivedClass(Address BaseAddr,
-                                          const CXXRecordDecl *Derived,
-                                        CastExpr::path_const_iterator PathBegin,
-                                          CastExpr::path_const_iterator PathEnd,
-                                          bool NullCheckValue) {
-  assert(PathBegin != PathEnd && "Base path should not be empty!");
-
-  QualType DerivedTy =
-    getContext().getCanonicalType(getContext().getTagDeclType(Derived));
-  llvm::Type *DerivedPtrTy = ConvertType(DerivedTy)->getPointerTo();
-
-  llvm::Value *NonVirtualOffset =
-    CGM.GetNonVirtualBaseClassOffset(Derived, PathBegin, PathEnd);
-
-  if (!NonVirtualOffset) {
-    // No offset, we can just cast back.
-    return Builder.CreateBitCast(BaseAddr, DerivedPtrTy);
-  }
-
-  llvm::BasicBlock *CastNull = nullptr;
-  llvm::BasicBlock *CastNotNull = nullptr;
-  llvm::BasicBlock *CastEnd = nullptr;
-
-  if (NullCheckValue) {
-    CastNull = createBasicBlock("cast.null");
-    CastNotNull = createBasicBlock("cast.notnull");
-    CastEnd = createBasicBlock("cast.end");
-
-    llvm::Value *IsNull = Builder.CreateIsNull(BaseAddr.getPointer());
-    Builder.CreateCondBr(IsNull, CastNull, CastNotNull);
-    EmitBlock(CastNotNull);
-  }
-
-  // Apply the offset.
-  llvm::Value *Value = Builder.CreateBitCast(BaseAddr.getPointer(), Int8PtrTy);
-  Value = Builder.CreateInBoundsGEP(Value, Builder.CreateNeg(NonVirtualOffset),
-                                    "sub.ptr");
-
-  // Just cast.
-  Value = Builder.CreateBitCast(Value, DerivedPtrTy);
-
-  // Produce a PHI if we had a null-check.
-  if (NullCheckValue) {
-    Builder.CreateBr(CastEnd);
-    EmitBlock(CastNull);
-    Builder.CreateBr(CastEnd);
-    EmitBlock(CastEnd);
-
-    llvm::PHINode *PHI = Builder.CreatePHI(Value->getType(), 2);
-    PHI->addIncoming(Value, CastNotNull);
-    PHI->addIncoming(llvm::Constant::getNullValue(Value->getType()), CastNull);
-    Value = PHI;
-  }
-
-  return Address(Value, CGM.getClassPointerAlignment(Derived));
-}
-
-llvm::Value *CodeGenFunction::GetVTTParameter(GlobalDecl GD,
-                                              bool ForVirtualBase,
-                                              bool Delegating) {
-  if (!CGM.getCXXABI().NeedsVTTParameter(GD)) {
-    // This constructor/destructor does not need a VTT parameter.
-    return nullptr;
-  }
-
-  const CXXRecordDecl *RD = cast<CXXMethodDecl>(CurCodeDecl)->getParent();
-  const CXXRecordDecl *Base = cast<CXXMethodDecl>(GD.getDecl())->getParent();
-
-  llvm::Value *VTT;
-
-  uint64_t SubVTTIndex;
-
-  if (Delegating) {
-    // If this is a delegating constructor call, just load the VTT.
-    return LoadCXXVTT();
-  } else if (RD == Base) {
-    // If the record matches the base, this is the complete ctor/dtor
-    // variant calling the base variant in a class with virtual bases.
-    assert(!CGM.getCXXABI().NeedsVTTParameter(CurGD) &&
-           "doing no-op VTT offset in base dtor/ctor?");
-    assert(!ForVirtualBase && "Can't have same class as virtual base!");
-    SubVTTIndex = 0;
-  } else {
-    const ASTRecordLayout &Layout = getContext().getASTRecordLayout(RD);
-    CharUnits BaseOffset = ForVirtualBase ?
-      Layout.getVBaseClassOffset(Base) :
-      Layout.getBaseClassOffset(Base);
-
-    SubVTTIndex =
-      CGM.getVTables().getSubVTTIndex(RD, BaseSubobject(Base, BaseOffset));
-    assert(SubVTTIndex != 0 && "Sub-VTT index must be greater than zero!");
-  }
-
-  if (CGM.getCXXABI().NeedsVTTParameter(CurGD)) {
-    // A VTT parameter was passed to the constructor, use it.
-    VTT = LoadCXXVTT();
-    VTT = Builder.CreateConstInBoundsGEP1_64(VTT, SubVTTIndex);
-  } else {
-    // We're the complete constructor, so get the VTT by name.
-    VTT = CGM.getVTables().GetAddrOfVTT(RD);
-    VTT = Builder.CreateConstInBoundsGEP2_64(VTT, 0, SubVTTIndex);
-  }
-
-  return VTT;
-}
-
-namespace {
-  /// Call the destructor for a direct base class.
-  struct CallBaseDtor final : EHScopeStack::Cleanup {
-    const CXXRecordDecl *BaseClass;
-    bool BaseIsVirtual;
-    CallBaseDtor(const CXXRecordDecl *Base, bool BaseIsVirtual)
-      : BaseClass(Base), BaseIsVirtual(BaseIsVirtual) {}
-
-    void Emit(CodeGenFunction &CGF, Flags flags) override {
-      const CXXRecordDecl *DerivedClass =
-        cast<CXXMethodDecl>(CGF.CurCodeDecl)->getParent();
-
-      const CXXDestructorDecl *D = BaseClass->getDestructor();
-      // We are already inside a destructor, so presumably the object being
-      // destroyed should have the expected type.
-      QualType ThisTy = D->getThisObjectType();
-      Address Addr =
-        CGF.GetAddressOfDirectBaseInCompleteClass(CGF.LoadCXXThisAddress(),
-                                                  DerivedClass, BaseClass,
-                                                  BaseIsVirtual);
-      CGF.EmitCXXDestructorCall(D, Dtor_Base, BaseIsVirtual,
-                                /*Delegating=*/false, Addr, ThisTy);
-    }
-  };
-
-  /// A visitor which checks whether an initializer uses 'this' in a
-  /// way which requires the vtable to be properly set.
-  struct DynamicThisUseChecker : ConstEvaluatedExprVisitor<DynamicThisUseChecker> {
-    typedef ConstEvaluatedExprVisitor<DynamicThisUseChecker> super;
-
-    bool UsesThis;
-
-    DynamicThisUseChecker(const ASTContext &C) : super(C), UsesThis(false) {}
-
-    // Black-list all explicit and implicit references to 'this'.
-    //
-    // Do we need to worry about external references to 'this' derived
-    // from arbitrary code?  If so, then anything which runs arbitrary
-    // external code might potentially access the vtable.
-    void VisitCXXThisExpr(const CXXThisExpr *E) { UsesThis = true; }
-  };
-} // end anonymous namespace
-
-static bool BaseInitializerUsesThis(ASTContext &C, const Expr *Init) {
-  DynamicThisUseChecker Checker(C);
-  Checker.Visit(Init);
-  return Checker.UsesThis;
-}
-
-static void EmitBaseInitializer(CodeGenFunction &CGF,
-                                const CXXRecordDecl *ClassDecl,
-                                CXXCtorInitializer *BaseInit) {
-  assert(BaseInit->isBaseInitializer() &&
-         "Must have base initializer!");
-
-  Address ThisPtr = CGF.LoadCXXThisAddress();
-
-  const Type *BaseType = BaseInit->getBaseClass();
-  CXXRecordDecl *BaseClassDecl =
-    cast<CXXRecordDecl>(BaseType->getAs<RecordType>()->getDecl());
-
-  bool isBaseVirtual = BaseInit->isBaseVirtual();
-
-  // If the initializer for the base (other than the constructor
-  // itself) accesses 'this' in any way, we need to initialize the
-  // vtables.
-  if (BaseInitializerUsesThis(CGF.getContext(), BaseInit->getInit()))
-    CGF.InitializeVTablePointers(ClassDecl);
-
-  // We can pretend to be a complete class because it only matters for
-  // virtual bases, and we only do virtual bases for complete ctors.
-  Address V =
-    CGF.GetAddressOfDirectBaseInCompleteClass(ThisPtr, ClassDecl,
-                                              BaseClassDecl,
-                                              isBaseVirtual);
-  AggValueSlot AggSlot =
-      AggValueSlot::forAddr(
-          V, Qualifiers(),
-          AggValueSlot::IsDestructed,
-          AggValueSlot::DoesNotNeedGCBarriers,
-          AggValueSlot::IsNotAliased,
-          CGF.getOverlapForBaseInit(ClassDecl, BaseClassDecl, isBaseVirtual));
-
-  CGF.EmitAggExpr(BaseInit->getInit(), AggSlot);
-
-  if (CGF.CGM.getLangOpts().Exceptions &&
-      !BaseClassDecl->hasTrivialDestructor())
-    CGF.EHStack.pushCleanup<CallBaseDtor>(EHCleanup, BaseClassDecl,
-                                          isBaseVirtual);
-}
-
-static bool isMemcpyEquivalentSpecialMember(const CXXMethodDecl *D) {
-  auto *CD = dyn_cast<CXXConstructorDecl>(D);
-  if (!(CD && CD->isCopyOrMoveConstructor()) &&
-      !D->isCopyAssignmentOperator() && !D->isMoveAssignmentOperator())
-    return false;
-
-  // We can emit a memcpy for a trivial copy or move constructor/assignment.
-  if (D->isTrivial() && !D->getParent()->mayInsertExtraPadding())
-    return true;
-
-  // We *must* emit a memcpy for a defaulted union copy or move op.
-  if (D->getParent()->isUnion() && D->isDefaulted())
-    return true;
-
-  return false;
-}
-
-static void EmitLValueForAnyFieldInitialization(CodeGenFunction &CGF,
-                                                CXXCtorInitializer *MemberInit,
-                                                LValue &LHS) {
-  FieldDecl *Field = MemberInit->getAnyMember();
-  if (MemberInit->isIndirectMemberInitializer()) {
-    // If we are initializing an anonymous union field, drill down to the field.
-    IndirectFieldDecl *IndirectField = MemberInit->getIndirectMember();
-    for (const auto *I : IndirectField->chain())
-      LHS = CGF.EmitLValueForFieldInitialization(LHS, cast<FieldDecl>(I));
-  } else {
-    LHS = CGF.EmitLValueForFieldInitialization(LHS, Field);
-  }
-}
-
-static void EmitMemberInitializer(CodeGenFunction &CGF,
-                                  const CXXRecordDecl *ClassDecl,
-                                  CXXCtorInitializer *MemberInit,
-                                  const CXXConstructorDecl *Constructor,
-                                  FunctionArgList &Args) {
-  ApplyDebugLocation Loc(CGF, MemberInit->getSourceLocation());
-  assert(MemberInit->isAnyMemberInitializer() &&
-         "Must have member initializer!");
-  assert(MemberInit->getInit() && "Must have initializer!");
-
-  // non-static data member initializers.
-  FieldDecl *Field = MemberInit->getAnyMember();
-  QualType FieldType = Field->getType();
-
-  llvm::Value *ThisPtr = CGF.LoadCXXThis();
-  QualType RecordTy = CGF.getContext().getTypeDeclType(ClassDecl);
-  LValue LHS;
-
-  // If a base constructor is being emitted, create an LValue that has the
-  // non-virtual alignment.
-  if (CGF.CurGD.getCtorType() == Ctor_Base)
-    LHS = CGF.MakeNaturalAlignPointeeAddrLValue(ThisPtr, RecordTy);
-  else
-    LHS = CGF.MakeNaturalAlignAddrLValue(ThisPtr, RecordTy);
-
-  EmitLValueForAnyFieldInitialization(CGF, MemberInit, LHS);
-
-  // Special case: if we are in a copy or move constructor, and we are copying
-  // an array of PODs or classes with trivial copy constructors, ignore the
-  // AST and perform the copy we know is equivalent.
-  // FIXME: This is hacky at best... if we had a bit more explicit information
-  // in the AST, we could generalize it more easily.
-  const ConstantArrayType *Array
-    = CGF.getContext().getAsConstantArrayType(FieldType);
-  if (Array && Constructor->isDefaulted() &&
-      Constructor->isCopyOrMoveConstructor()) {
-    QualType BaseElementTy = CGF.getContext().getBaseElementType(Array);
-    CXXConstructExpr *CE = dyn_cast<CXXConstructExpr>(MemberInit->getInit());
-    if (BaseElementTy.isPODType(CGF.getContext()) ||
-        (CE && isMemcpyEquivalentSpecialMember(CE->getConstructor()))) {
-      unsigned SrcArgIndex =
-          CGF.CGM.getCXXABI().getSrcArgforCopyCtor(Constructor, Args);
-      llvm::Value *SrcPtr
-        = CGF.Builder.CreateLoad(CGF.GetAddrOfLocalVar(Args[SrcArgIndex]));
-      LValue ThisRHSLV = CGF.MakeNaturalAlignAddrLValue(SrcPtr, RecordTy);
-      LValue Src = CGF.EmitLValueForFieldInitialization(ThisRHSLV, Field);
-
-      // Copy the aggregate.
-      CGF.EmitAggregateCopy(LHS, Src, FieldType, CGF.getOverlapForFieldInit(Field),
-                            LHS.isVolatileQualified());
-      // Ensure that we destroy the objects if an exception is thrown later in
-      // the constructor.
-      QualType::DestructionKind dtorKind = FieldType.isDestructedType();
-      if (CGF.needsEHCleanup(dtorKind))
-        CGF.pushEHDestroy(dtorKind, LHS.getAddress(), FieldType);
-      return;
-    }
-  }
-
-  CGF.EmitInitializerForField(Field, LHS, MemberInit->getInit());
-}
-
-void CodeGenFunction::EmitInitializerForField(FieldDecl *Field, LValue LHS,
-                                              Expr *Init) {
-  QualType FieldType = Field->getType();
-  switch (getEvaluationKind(FieldType)) {
-  case TEK_Scalar:
-    if (LHS.isSimple()) {
-      EmitExprAsInit(Init, Field, LHS, false);
-    } else {
-      RValue RHS = RValue::get(EmitScalarExpr(Init));
-      EmitStoreThroughLValue(RHS, LHS);
-    }
-    break;
-  case TEK_Complex:
-    EmitComplexExprIntoLValue(Init, LHS, /*isInit*/ true);
-    break;
-  case TEK_Aggregate: {
-    AggValueSlot Slot =
-        AggValueSlot::forLValue(
-            LHS,
-            AggValueSlot::IsDestructed,
-            AggValueSlot::DoesNotNeedGCBarriers,
-            AggValueSlot::IsNotAliased,
-            getOverlapForFieldInit(Field),
-            AggValueSlot::IsNotZeroed,
-            // Checks are made by the code that calls constructor.
-            AggValueSlot::IsSanitizerChecked);
-    EmitAggExpr(Init, Slot);
-    break;
-  }
-  }
-
-  // Ensure that we destroy this object if an exception is thrown
-  // later in the constructor.
-  QualType::DestructionKind dtorKind = FieldType.isDestructedType();
-  if (needsEHCleanup(dtorKind))
-    pushEHDestroy(dtorKind, LHS.getAddress(), FieldType);
-}
-
-/// Checks whether the given constructor is a valid subject for the
-/// complete-to-base constructor delegation optimization, i.e.
-/// emitting the complete constructor as a simple call to the base
-/// constructor.
-bool CodeGenFunction::IsConstructorDelegationValid(
-    const CXXConstructorDecl *Ctor) {
-
-  // Currently we disable the optimization for classes with virtual
-  // bases because (1) the addresses of parameter variables need to be
-  // consistent across all initializers but (2) the delegate function
-  // call necessarily creates a second copy of the parameter variable.
-  //
-  // The limiting example (purely theoretical AFAIK):
-  //   struct A { A(int &c) { c++; } };
-  //   struct B : virtual A {
-  //     B(int count) : A(count) { printf("%d\n", count); }
-  //   };
-  // ...although even this example could in principle be emitted as a
-  // delegation since the address of the parameter doesn't escape.
-  if (Ctor->getParent()->getNumVBases()) {
-    // TODO: white-list trivial vbase initializers.  This case wouldn't
-    // be subject to the restrictions below.
-
-    // TODO: white-list cases where:
-    //  - there are no non-reference parameters to the constructor
-    //  - the initializers don't access any non-reference parameters
-    //  - the initializers don't take the address of non-reference
-    //    parameters
-    //  - etc.
-    // If we ever add any of the above cases, remember that:
-    //  - function-try-blocks will always blacklist this optimization
-    //  - we need to perform the constructor prologue and cleanup in
-    //    EmitConstructorBody.
-
-    return false;
-  }
-
-  // We also disable the optimization for variadic functions because
-  // it's impossible to "re-pass" varargs.
-  if (Ctor->getType()->getAs<FunctionProtoType>()->isVariadic())
-    return false;
-
-  // FIXME: Decide if we can do a delegation of a delegating constructor.
-  if (Ctor->isDelegatingConstructor())
-    return false;
-
-  return true;
-}
-
-// Emit code in ctor (Prologue==true) or dtor (Prologue==false)
-// to poison the extra field paddings inserted under
-// -fsanitize-address-field-padding=1|2.
-void CodeGenFunction::EmitAsanPrologueOrEpilogue(bool Prologue) {
-  ASTContext &Context = getContext();
-  const CXXRecordDecl *ClassDecl =
-      Prologue ? cast<CXXConstructorDecl>(CurGD.getDecl())->getParent()
-               : cast<CXXDestructorDecl>(CurGD.getDecl())->getParent();
-  if (!ClassDecl->mayInsertExtraPadding()) return;
-
-  struct SizeAndOffset {
-    uint64_t Size;
-    uint64_t Offset;
-  };
-
-  unsigned PtrSize = CGM.getDataLayout().getPointerSizeInBits();
-  const ASTRecordLayout &Info = Context.getASTRecordLayout(ClassDecl);
-
-  // Populate sizes and offsets of fields.
-  SmallVector<SizeAndOffset, 16> SSV(Info.getFieldCount());
-  for (unsigned i = 0, e = Info.getFieldCount(); i != e; ++i)
-    SSV[i].Offset =
-        Context.toCharUnitsFromBits(Info.getFieldOffset(i)).getQuantity();
-
-  size_t NumFields = 0;
-  for (const auto *Field : ClassDecl->fields()) {
-    const FieldDecl *D = Field;
-    std::pair<CharUnits, CharUnits> FieldInfo =
-        Context.getTypeInfoInChars(D->getType());
-    CharUnits FieldSize = FieldInfo.first;
-    assert(NumFields < SSV.size());
-    SSV[NumFields].Size = D->isBitField() ? 0 : FieldSize.getQuantity();
-    NumFields++;
-  }
-  assert(NumFields == SSV.size());
-  if (SSV.size() <= 1) return;
-
-  // We will insert calls to __asan_* run-time functions.
-  // LLVM AddressSanitizer pass may decide to inline them later.
-  llvm::Type *Args[2] = {IntPtrTy, IntPtrTy};
-  llvm::FunctionType *FTy =
-      llvm::FunctionType::get(CGM.VoidTy, Args, false);
-  llvm::FunctionCallee F = CGM.CreateRuntimeFunction(
-      FTy, Prologue ? "__asan_poison_intra_object_redzone"
-                    : "__asan_unpoison_intra_object_redzone");
-
-  llvm::Value *ThisPtr = LoadCXXThis();
-  ThisPtr = Builder.CreatePtrToInt(ThisPtr, IntPtrTy);
-  uint64_t TypeSize = Info.getNonVirtualSize().getQuantity();
-  // For each field check if it has sufficient padding,
-  // if so (un)poison it with a call.
-  for (size_t i = 0; i < SSV.size(); i++) {
-    uint64_t AsanAlignment = 8;
-    uint64_t NextField = i == SSV.size() - 1 ? TypeSize : SSV[i + 1].Offset;
-    uint64_t PoisonSize = NextField - SSV[i].Offset - SSV[i].Size;
-    uint64_t EndOffset = SSV[i].Offset + SSV[i].Size;
-    if (PoisonSize < AsanAlignment || !SSV[i].Size ||
-        (NextField % AsanAlignment) != 0)
-      continue;
-    Builder.CreateCall(
-        F, {Builder.CreateAdd(ThisPtr, Builder.getIntN(PtrSize, EndOffset)),
-            Builder.getIntN(PtrSize, PoisonSize)});
-  }
-}
-
-/// EmitConstructorBody - Emits the body of the current constructor.
-void CodeGenFunction::EmitConstructorBody(FunctionArgList &Args) {
-  EmitAsanPrologueOrEpilogue(true);
-  const CXXConstructorDecl *Ctor = cast<CXXConstructorDecl>(CurGD.getDecl());
-  CXXCtorType CtorType = CurGD.getCtorType();
-
-  assert((CGM.getTarget().getCXXABI().hasConstructorVariants() ||
-          CtorType == Ctor_Complete) &&
-         "can only generate complete ctor for this ABI");
-
-  // Before we go any further, try the complete->base constructor
-  // delegation optimization.
-  if (CtorType == Ctor_Complete && IsConstructorDelegationValid(Ctor) &&
-      CGM.getTarget().getCXXABI().hasConstructorVariants()) {
-    EmitDelegateCXXConstructorCall(Ctor, Ctor_Base, Args, Ctor->getEndLoc());
-    return;
-  }
-
-  const FunctionDecl *Definition = nullptr;
-  Stmt *Body = Ctor->getBody(Definition);
-  assert(Definition == Ctor && "emitting wrong constructor body");
-
-  // Enter the function-try-block before the constructor prologue if
-  // applicable.
-  bool IsTryBody = (Body && isa<CXXTryStmt>(Body));
-  if (IsTryBody)
-    EnterCXXTryStmt(*cast<CXXTryStmt>(Body), true);
-
-  incrementProfileCounter(Body);
-
-  RunCleanupsScope RunCleanups(*this);
-
-  // TODO: in restricted cases, we can emit the vbase initializers of
-  // a complete ctor and then delegate to the base ctor.
-
-  // Emit the constructor prologue, i.e. the base and member
-  // initializers.
-  EmitCtorPrologue(Ctor, CtorType, Args);
-
-  // Emit the body of the statement.
-  if (IsTryBody)
-    EmitStmt(cast<CXXTryStmt>(Body)->getTryBlock());
-  else if (Body)
-    EmitStmt(Body);
-
-  // Emit any cleanup blocks associated with the member or base
-  // initializers, which includes (along the exceptional path) the
-  // destructors for those members and bases that were fully
-  // constructed.
-  RunCleanups.ForceCleanup();
-
-  if (IsTryBody)
-    ExitCXXTryStmt(*cast<CXXTryStmt>(Body), true);
-}
-
-namespace {
-  /// RAII object to indicate that codegen is copying the value representation
-  /// instead of the object representation. Useful when copying a struct or
-  /// class which has uninitialized members and we're only performing
-  /// lvalue-to-rvalue conversion on the object but not its members.
-  class CopyingValueRepresentation {
-  public:
-    explicit CopyingValueRepresentation(CodeGenFunction &CGF)
-        : CGF(CGF), OldSanOpts(CGF.SanOpts) {
-      CGF.SanOpts.set(SanitizerKind::Bool, false);
-      CGF.SanOpts.set(SanitizerKind::Enum, false);
-    }
-    ~CopyingValueRepresentation() {
-      CGF.SanOpts = OldSanOpts;
-    }
-  private:
-    CodeGenFunction &CGF;
-    SanitizerSet OldSanOpts;
-  };
-} // end anonymous namespace
-
-namespace {
-  class FieldMemcpyizer {
-  public:
-    FieldMemcpyizer(CodeGenFunction &CGF, const CXXRecordDecl *ClassDecl,
-                    const VarDecl *SrcRec)
-      : CGF(CGF), ClassDecl(ClassDecl), SrcRec(SrcRec),
-        RecLayout(CGF.getContext().getASTRecordLayout(ClassDecl)),
-        FirstField(nullptr), LastField(nullptr), FirstFieldOffset(0),
-        LastFieldOffset(0), LastAddedFieldIndex(0) {}
-
-    bool isMemcpyableField(FieldDecl *F) const {
-      // Never memcpy fields when we are adding poisoned paddings.
-      if (CGF.getContext().getLangOpts().SanitizeAddressFieldPadding)
-        return false;
-      Qualifiers Qual = F->getType().getQualifiers();
-      if (Qual.hasVolatile() || Qual.hasObjCLifetime())
-        return false;
-      return true;
-    }
-
-    void addMemcpyableField(FieldDecl *F) {
-      if (!FirstField)
-        addInitialField(F);
-      else
-        addNextField(F);
-    }
-
-    CharUnits getMemcpySize(uint64_t FirstByteOffset) const {
-      ASTContext &Ctx = CGF.getContext();
-      unsigned LastFieldSize =
-          LastField->isBitField()
-              ? LastField->getBitWidthValue(Ctx)
-              : Ctx.toBits(
-                    Ctx.getTypeInfoDataSizeInChars(LastField->getType()).first);
-      uint64_t MemcpySizeBits = LastFieldOffset + LastFieldSize -
-                                FirstByteOffset + Ctx.getCharWidth() - 1;
-      CharUnits MemcpySize = Ctx.toCharUnitsFromBits(MemcpySizeBits);
-      return MemcpySize;
-    }
-
-    void emitMemcpy() {
-      // Give the subclass a chance to bail out if it feels the memcpy isn't
-      // worth it (e.g. Hasn't aggregated enough data).
-      if (!FirstField) {
-        return;
-      }
-
-      uint64_t FirstByteOffset;
-      if (FirstField->isBitField()) {
-        const CGRecordLayout &RL =
-          CGF.getTypes().getCGRecordLayout(FirstField->getParent());
-        const CGBitFieldInfo &BFInfo = RL.getBitFieldInfo(FirstField);
-        // FirstFieldOffset is not appropriate for bitfields,
-        // we need to use the storage offset instead.
-        FirstByteOffset = CGF.getContext().toBits(BFInfo.StorageOffset);
-      } else {
-        FirstByteOffset = FirstFieldOffset;
-      }
-
-      CharUnits MemcpySize = getMemcpySize(FirstByteOffset);
-      QualType RecordTy = CGF.getContext().getTypeDeclType(ClassDecl);
-      Address ThisPtr = CGF.LoadCXXThisAddress();
-      LValue DestLV = CGF.MakeAddrLValue(ThisPtr, RecordTy);
-      LValue Dest = CGF.EmitLValueForFieldInitialization(DestLV, FirstField);
-      llvm::Value *SrcPtr = CGF.Builder.CreateLoad(CGF.GetAddrOfLocalVar(SrcRec));
-      LValue SrcLV = CGF.MakeNaturalAlignAddrLValue(SrcPtr, RecordTy);
-      LValue Src = CGF.EmitLValueForFieldInitialization(SrcLV, FirstField);
-
-      emitMemcpyIR(Dest.isBitField() ? Dest.getBitFieldAddress() : Dest.getAddress(),
-                   Src.isBitField() ? Src.getBitFieldAddress() : Src.getAddress(),
-                   MemcpySize);
-      reset();
-    }
-
-    void reset() {
-      FirstField = nullptr;
-    }
-
-  protected:
-    CodeGenFunction &CGF;
-    const CXXRecordDecl *ClassDecl;
-
-  private:
-    void emitMemcpyIR(Address DestPtr, Address SrcPtr, CharUnits Size) {
-      llvm::PointerType *DPT = DestPtr.getType();
-      llvm::Type *DBP =
-        llvm::Type::getInt8PtrTy(CGF.getLLVMContext(), DPT->getAddressSpace());
-      DestPtr = CGF.Builder.CreateBitCast(DestPtr, DBP);
-
-      llvm::PointerType *SPT = SrcPtr.getType();
-      llvm::Type *SBP =
-        llvm::Type::getInt8PtrTy(CGF.getLLVMContext(), SPT->getAddressSpace());
-      SrcPtr = CGF.Builder.CreateBitCast(SrcPtr, SBP);
-
-      CGF.Builder.CreateMemCpy(DestPtr, SrcPtr, Size.getQuantity());
-    }
-
-    void addInitialField(FieldDecl *F) {
-      FirstField = F;
-      LastField = F;
-      FirstFieldOffset = RecLayout.getFieldOffset(F->getFieldIndex());
-      LastFieldOffset = FirstFieldOffset;
-      LastAddedFieldIndex = F->getFieldIndex();
-    }
-
-    void addNextField(FieldDecl *F) {
-      // For the most part, the following invariant will hold:
-      //   F->getFieldIndex() == LastAddedFieldIndex + 1
-      // The one exception is that Sema won't add a copy-initializer for an
-      // unnamed bitfield, which will show up here as a gap in the sequence.
-      assert(F->getFieldIndex() >= LastAddedFieldIndex + 1 &&
-             "Cannot aggregate fields out of order.");
-      LastAddedFieldIndex = F->getFieldIndex();
-
-      // The 'first' and 'last' fields are chosen by offset, rather than field
-      // index. This allows the code to support bitfields, as well as regular
-      // fields.
-      uint64_t FOffset = RecLayout.getFieldOffset(F->getFieldIndex());
-      if (FOffset < FirstFieldOffset) {
-        FirstField = F;
-        FirstFieldOffset = FOffset;
-      } else if (FOffset >= LastFieldOffset) {
-        LastField = F;
-        LastFieldOffset = FOffset;
-      }
-    }
-
-    const VarDecl *SrcRec;
-    const ASTRecordLayout &RecLayout;
-    FieldDecl *FirstField;
-    FieldDecl *LastField;
-    uint64_t FirstFieldOffset, LastFieldOffset;
-    unsigned LastAddedFieldIndex;
-  };
-
-  class ConstructorMemcpyizer : public FieldMemcpyizer {
-  private:
-    /// Get source argument for copy constructor. Returns null if not a copy
-    /// constructor.
-    static const VarDecl *getTrivialCopySource(CodeGenFunction &CGF,
-                                               const CXXConstructorDecl *CD,
-                                               FunctionArgList &Args) {
-      if (CD->isCopyOrMoveConstructor() && CD->isDefaulted())
-        return Args[CGF.CGM.getCXXABI().getSrcArgforCopyCtor(CD, Args)];
-      return nullptr;
-    }
-
-    // Returns true if a CXXCtorInitializer represents a member initialization
-    // that can be rolled into a memcpy.
-    bool isMemberInitMemcpyable(CXXCtorInitializer *MemberInit) const {
-      if (!MemcpyableCtor)
-        return false;
-      FieldDecl *Field = MemberInit->getMember();
-      assert(Field && "No field for member init.");
-      QualType FieldType = Field->getType();
-      CXXConstructExpr *CE = dyn_cast<CXXConstructExpr>(MemberInit->getInit());
-
-      // Bail out on non-memcpyable, not-trivially-copyable members.
-      if (!(CE && isMemcpyEquivalentSpecialMember(CE->getConstructor())) &&
-          !(FieldType.isTriviallyCopyableType(CGF.getContext()) ||
-            FieldType->isReferenceType()))
-        return false;
-
-      // Bail out on volatile fields.
-      if (!isMemcpyableField(Field))
-        return false;
-
-      // Otherwise we're good.
-      return true;
-    }
-
-  public:
-    ConstructorMemcpyizer(CodeGenFunction &CGF, const CXXConstructorDecl *CD,
-                          FunctionArgList &Args)
-      : FieldMemcpyizer(CGF, CD->getParent(), getTrivialCopySource(CGF, CD, Args)),
-        ConstructorDecl(CD),
-        MemcpyableCtor(CD->isDefaulted() &&
-                       CD->isCopyOrMoveConstructor() &&
-                       CGF.getLangOpts().getGC() == LangOptions::NonGC),
-        Args(Args) { }
-
-    void addMemberInitializer(CXXCtorInitializer *MemberInit) {
-      if (isMemberInitMemcpyable(MemberInit)) {
-        AggregatedInits.push_back(MemberInit);
-        addMemcpyableField(MemberInit->getMember());
-      } else {
-        emitAggregatedInits();
-        EmitMemberInitializer(CGF, ConstructorDecl->getParent(), MemberInit,
-                              ConstructorDecl, Args);
-      }
-    }
-
-    void emitAggregatedInits() {
-      if (AggregatedInits.size() <= 1) {
-        // This memcpy is too small to be worthwhile. Fall back on default
-        // codegen.
-        if (!AggregatedInits.empty()) {
-          CopyingValueRepresentation CVR(CGF);
-          EmitMemberInitializer(CGF, ConstructorDecl->getParent(),
-                                AggregatedInits[0], ConstructorDecl, Args);
-          AggregatedInits.clear();
-        }
-        reset();
-        return;
-      }
-
-      pushEHDestructors();
-      emitMemcpy();
-      AggregatedInits.clear();
-    }
-
-    void pushEHDestructors() {
-      Address ThisPtr = CGF.LoadCXXThisAddress();
-      QualType RecordTy = CGF.getContext().getTypeDeclType(ClassDecl);
-      LValue LHS = CGF.MakeAddrLValue(ThisPtr, RecordTy);
-
-      for (unsigned i = 0; i < AggregatedInits.size(); ++i) {
-        CXXCtorInitializer *MemberInit = AggregatedInits[i];
-        QualType FieldType = MemberInit->getAnyMember()->getType();
-        QualType::DestructionKind dtorKind = FieldType.isDestructedType();
-        if (!CGF.needsEHCleanup(dtorKind))
-          continue;
-        LValue FieldLHS = LHS;
-        EmitLValueForAnyFieldInitialization(CGF, MemberInit, FieldLHS);
-        CGF.pushEHDestroy(dtorKind, FieldLHS.getAddress(), FieldType);
-      }
-    }
-
-    void finish() {
-      emitAggregatedInits();
-    }
-
-  private:
-    const CXXConstructorDecl *ConstructorDecl;
-    bool MemcpyableCtor;
-    FunctionArgList &Args;
-    SmallVector<CXXCtorInitializer*, 16> AggregatedInits;
-  };
-
-  class AssignmentMemcpyizer : public FieldMemcpyizer {
-  private:
-    // Returns the memcpyable field copied by the given statement, if one
-    // exists. Otherwise returns null.
-    FieldDecl *getMemcpyableField(Stmt *S) {
-      if (!AssignmentsMemcpyable)
-        return nullptr;
-      if (BinaryOperator *BO = dyn_cast<BinaryOperator>(S)) {
-        // Recognise trivial assignments.
-        if (BO->getOpcode() != BO_Assign)
-          return nullptr;
-        MemberExpr *ME = dyn_cast<MemberExpr>(BO->getLHS());
-        if (!ME)
-          return nullptr;
-        FieldDecl *Field = dyn_cast<FieldDecl>(ME->getMemberDecl());
-        if (!Field || !isMemcpyableField(Field))
-          return nullptr;
-        Stmt *RHS = BO->getRHS();
-        if (ImplicitCastExpr *EC = dyn_cast<ImplicitCastExpr>(RHS))
-          RHS = EC->getSubExpr();
-        if (!RHS)
-          return nullptr;
-        if (MemberExpr *ME2 = dyn_cast<MemberExpr>(RHS)) {
-          if (ME2->getMemberDecl() == Field)
-            return Field;
-        }
-        return nullptr;
-      } else if (CXXMemberCallExpr *MCE = dyn_cast<CXXMemberCallExpr>(S)) {
-        CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(MCE->getCalleeDecl());
-        if (!(MD && isMemcpyEquivalentSpecialMember(MD)))
-          return nullptr;
-        MemberExpr *IOA = dyn_cast<MemberExpr>(MCE->getImplicitObjectArgument());
-        if (!IOA)
-          return nullptr;
-        FieldDecl *Field = dyn_cast<FieldDecl>(IOA->getMemberDecl());
-        if (!Field || !isMemcpyableField(Field))
-          return nullptr;
-        MemberExpr *Arg0 = dyn_cast<MemberExpr>(MCE->getArg(0));
-        if (!Arg0 || Field != dyn_cast<FieldDecl>(Arg0->getMemberDecl()))
-          return nullptr;
-        return Field;
-      } else if (CallExpr *CE = dyn_cast<CallExpr>(S)) {
-        FunctionDecl *FD = dyn_cast<FunctionDecl>(CE->getCalleeDecl());
-        if (!FD || FD->getBuiltinID() != Builtin::BI__builtin_memcpy)
-          return nullptr;
-        Expr *DstPtr = CE->getArg(0);
-        if (ImplicitCastExpr *DC = dyn_cast<ImplicitCastExpr>(DstPtr))
-          DstPtr = DC->getSubExpr();
-        UnaryOperator *DUO = dyn_cast<UnaryOperator>(DstPtr);
-        if (!DUO || DUO->getOpcode() != UO_AddrOf)
-          return nullptr;
-        MemberExpr *ME = dyn_cast<MemberExpr>(DUO->getSubExpr());
-        if (!ME)
-          return nullptr;
-        FieldDecl *Field = dyn_cast<FieldDecl>(ME->getMemberDecl());
-        if (!Field || !isMemcpyableField(Field))
-          return nullptr;
-        Expr *SrcPtr = CE->getArg(1);
-        if (ImplicitCastExpr *SC = dyn_cast<ImplicitCastExpr>(SrcPtr))
-          SrcPtr = SC->getSubExpr();
-        UnaryOperator *SUO = dyn_cast<UnaryOperator>(SrcPtr);
-        if (!SUO || SUO->getOpcode() != UO_AddrOf)
-          return nullptr;
-        MemberExpr *ME2 = dyn_cast<MemberExpr>(SUO->getSubExpr());
-        if (!ME2 || Field != dyn_cast<FieldDecl>(ME2->getMemberDecl()))
-          return nullptr;
-        return Field;
-      }
-
-      return nullptr;
-    }
-
-    bool AssignmentsMemcpyable;
-    SmallVector<Stmt*, 16> AggregatedStmts;
-
-  public:
-    AssignmentMemcpyizer(CodeGenFunction &CGF, const CXXMethodDecl *AD,
-                         FunctionArgList &Args)
-      : FieldMemcpyizer(CGF, AD->getParent(), Args[Args.size() - 1]),
-        AssignmentsMemcpyable(CGF.getLangOpts().getGC() == LangOptions::NonGC) {
-      assert(Args.size() == 2);
-    }
-
-    void emitAssignment(Stmt *S) {
-      FieldDecl *F = getMemcpyableField(S);
-      if (F) {
-        addMemcpyableField(F);
-        AggregatedStmts.push_back(S);
-      } else {
-        emitAggregatedStmts();
-        CGF.EmitStmt(S);
-      }
-    }
-
-    void emitAggregatedStmts() {
-      if (AggregatedStmts.size() <= 1) {
-        if (!AggregatedStmts.empty()) {
-          CopyingValueRepresentation CVR(CGF);
-          CGF.EmitStmt(AggregatedStmts[0]);
-        }
-        reset();
-      }
-
-      emitMemcpy();
-      AggregatedStmts.clear();
-    }
-
-    void finish() {
-      emitAggregatedStmts();
-    }
-  };
-} // end anonymous namespace
-
-static bool isInitializerOfDynamicClass(const CXXCtorInitializer *BaseInit) {
-  const Type *BaseType = BaseInit->getBaseClass();
-  const auto *BaseClassDecl =
-          cast<CXXRecordDecl>(BaseType->getAs<RecordType>()->getDecl());
-  return BaseClassDecl->isDynamicClass();
-}
-
-/// EmitCtorPrologue - This routine generates necessary code to initialize
-/// base classes and non-static data members belonging to this constructor.
-void CodeGenFunction::EmitCtorPrologue(const CXXConstructorDecl *CD,
-                                       CXXCtorType CtorType,
-                                       FunctionArgList &Args) {
-  if (CD->isDelegatingConstructor())
-    return EmitDelegatingCXXConstructorCall(CD, Args);
-
-  const CXXRecordDecl *ClassDecl = CD->getParent();
-
-  CXXConstructorDecl::init_const_iterator B = CD->init_begin(),
-                                          E = CD->init_end();
-
-  // Virtual base initializers first, if any. They aren't needed if:
-  // - This is a base ctor variant
-  // - There are no vbases
-  // - The class is abstract, so a complete object of it cannot be constructed
-  //
-  // The check for an abstract class is necessary because sema may not have
-  // marked virtual base destructors referenced.
-  bool ConstructVBases = CtorType != Ctor_Base &&
-                         ClassDecl->getNumVBases() != 0 &&
-                         !ClassDecl->isAbstract();
-
-  // In the Microsoft C++ ABI, there are no constructor variants. Instead, the
-  // constructor of a class with virtual bases takes an additional parameter to
-  // conditionally construct the virtual bases. Emit that check here.
-  llvm::BasicBlock *BaseCtorContinueBB = nullptr;
-  if (ConstructVBases &&
-      !CGM.getTarget().getCXXABI().hasConstructorVariants()) {
-    BaseCtorContinueBB =
-        CGM.getCXXABI().EmitCtorCompleteObjectHandler(*this, ClassDecl);
-    assert(BaseCtorContinueBB);
-  }
-
-  llvm::Value *const OldThis = CXXThisValue;
-  for (; B != E && (*B)->isBaseInitializer() && (*B)->isBaseVirtual(); B++) {
-    if (!ConstructVBases)
-      continue;
-    if (CGM.getCodeGenOpts().StrictVTablePointers &&
-        CGM.getCodeGenOpts().OptimizationLevel > 0 &&
-        isInitializerOfDynamicClass(*B))
-      CXXThisValue = Builder.CreateLaunderInvariantGroup(LoadCXXThis());
-    EmitBaseInitializer(*this, ClassDecl, *B);
-  }
-
-  if (BaseCtorContinueBB) {
-    // Complete object handler should continue to the remaining initializers.
-    Builder.CreateBr(BaseCtorContinueBB);
-    EmitBlock(BaseCtorContinueBB);
-  }
-
-  // Then, non-virtual base initializers.
-  for (; B != E && (*B)->isBaseInitializer(); B++) {
-    assert(!(*B)->isBaseVirtual());
-
-    if (CGM.getCodeGenOpts().StrictVTablePointers &&
-        CGM.getCodeGenOpts().OptimizationLevel > 0 &&
-        isInitializerOfDynamicClass(*B))
-      CXXThisValue = Builder.CreateLaunderInvariantGroup(LoadCXXThis());
-    EmitBaseInitializer(*this, ClassDecl, *B);
-  }
-
-  CXXThisValue = OldThis;
-
-  InitializeVTablePointers(ClassDecl);
-
-  // And finally, initialize class members.
-  FieldConstructionScope FCS(*this, LoadCXXThisAddress());
-  ConstructorMemcpyizer CM(*this, CD, Args);
-  for (; B != E; B++) {
-    CXXCtorInitializer *Member = (*B);
-    assert(!Member->isBaseInitializer());
-    assert(Member->isAnyMemberInitializer() &&
-           "Delegating initializer on non-delegating constructor");
-    CM.addMemberInitializer(Member);
-  }
-  CM.finish();
-}
-
-static bool
-FieldHasTrivialDestructorBody(ASTContext &Context, const FieldDecl *Field);
-
-static bool
-HasTrivialDestructorBody(ASTContext &Context,
-                         const CXXRecordDecl *BaseClassDecl,
-                         const CXXRecordDecl *MostDerivedClassDecl)
-{
-  // If the destructor is trivial we don't have to check anything else.
-  if (BaseClassDecl->hasTrivialDestructor())
-    return true;
-
-  if (!BaseClassDecl->getDestructor()->hasTrivialBody())
-    return false;
-
-  // Check fields.
-  for (const auto *Field : BaseClassDecl->fields())
-    if (!FieldHasTrivialDestructorBody(Context, Field))
-      return false;
-
-  // Check non-virtual bases.
-  for (const auto &I : BaseClassDecl->bases()) {
-    if (I.isVirtual())
-      continue;
-
-    const CXXRecordDecl *NonVirtualBase =
-      cast<CXXRecordDecl>(I.getType()->castAs<RecordType>()->getDecl());
-    if (!HasTrivialDestructorBody(Context, NonVirtualBase,
-                                  MostDerivedClassDecl))
-      return false;
-  }
-
-  if (BaseClassDecl == MostDerivedClassDecl) {
-    // Check virtual bases.
-    for (const auto &I : BaseClassDecl->vbases()) {
-      const CXXRecordDecl *VirtualBase =
-        cast<CXXRecordDecl>(I.getType()->castAs<RecordType>()->getDecl());
-      if (!HasTrivialDestructorBody(Context, VirtualBase,
-                                    MostDerivedClassDecl))
-        return false;
-    }
-  }
-
-  return true;
-}
-
-static bool
-FieldHasTrivialDestructorBody(ASTContext &Context,
-                                          const FieldDecl *Field)
-{
-  QualType FieldBaseElementType = Context.getBaseElementType(Field->getType());
-
-  const RecordType *RT = FieldBaseElementType->getAs<RecordType>();
-  if (!RT)
-    return true;
-
-  CXXRecordDecl *FieldClassDecl = cast<CXXRecordDecl>(RT->getDecl());
-
-  // The destructor for an implicit anonymous union member is never invoked.
-  if (FieldClassDecl->isUnion() && FieldClassDecl->isAnonymousStructOrUnion())
-    return false;
-
-  return HasTrivialDestructorBody(Context, FieldClassDecl, FieldClassDecl);
-}
-
-/// CanSkipVTablePointerInitialization - Check whether we need to initialize
-/// any vtable pointers before calling this destructor.
-static bool CanSkipVTablePointerInitialization(CodeGenFunction &CGF,
-                                               const CXXDestructorDecl *Dtor) {
-  const CXXRecordDecl *ClassDecl = Dtor->getParent();
-  if (!ClassDecl->isDynamicClass())
-    return true;
-
-  if (!Dtor->hasTrivialBody())
-    return false;
-
-  // Check the fields.
-  for (const auto *Field : ClassDecl->fields())
-    if (!FieldHasTrivialDestructorBody(CGF.getContext(), Field))
-      return false;
-
-  return true;
-}
-
-/// EmitDestructorBody - Emits the body of the current destructor.
-void CodeGenFunction::EmitDestructorBody(FunctionArgList &Args) {
-  const CXXDestructorDecl *Dtor = cast<CXXDestructorDecl>(CurGD.getDecl());
-  CXXDtorType DtorType = CurGD.getDtorType();
-
-  // For an abstract class, non-base destructors are never used (and can't
-  // be emitted in general, because vbase dtors may not have been validated
-  // by Sema), but the Itanium ABI doesn't make them optional and Clang may
-  // in fact emit references to them from other compilations, so emit them
-  // as functions containing a trap instruction.
-  if (DtorType != Dtor_Base && Dtor->getParent()->isAbstract()) {
-    llvm::CallInst *TrapCall = EmitTrapCall(llvm::Intrinsic::trap);
-    TrapCall->setDoesNotReturn();
-    TrapCall->setDoesNotThrow();
-    Builder.CreateUnreachable();
-    Builder.ClearInsertionPoint();
-    return;
-  }
-
-  Stmt *Body = Dtor->getBody();
-  if (Body)
-    incrementProfileCounter(Body);
-
-  // The call to operator delete in a deleting destructor happens
-  // outside of the function-try-block, which means it's always
-  // possible to delegate the destructor body to the complete
-  // destructor.  Do so.
-  if (DtorType == Dtor_Deleting) {
-    RunCleanupsScope DtorEpilogue(*this);
-    EnterDtorCleanups(Dtor, Dtor_Deleting);
-    if (HaveInsertPoint()) {
-      QualType ThisTy = Dtor->getThisObjectType();
-      EmitCXXDestructorCall(Dtor, Dtor_Complete, /*ForVirtualBase=*/false,
-                            /*Delegating=*/false, LoadCXXThisAddress(), ThisTy);
-    }
-    return;
-  }
-
-  // If the body is a function-try-block, enter the try before
-  // anything else.
-  bool isTryBody = (Body && isa<CXXTryStmt>(Body));
-  if (isTryBody)
-    EnterCXXTryStmt(*cast<CXXTryStmt>(Body), true);
-  EmitAsanPrologueOrEpilogue(false);
-
-  // Enter the epilogue cleanups.
-  RunCleanupsScope DtorEpilogue(*this);
-
-  // If this is the complete variant, just invoke the base variant;
-  // the epilogue will destruct the virtual bases.  But we can't do
-  // this optimization if the body is a function-try-block, because
-  // we'd introduce *two* handler blocks.  In the Microsoft ABI, we
-  // always delegate because we might not have a definition in this TU.
-  switch (DtorType) {
-  case Dtor_Comdat: llvm_unreachable("not expecting a COMDAT");
-  case Dtor_Deleting: llvm_unreachable("already handled deleting case");
-
-  case Dtor_Complete:
-    assert((Body || getTarget().getCXXABI().isMicrosoft()) &&
-           "can't emit a dtor without a body for non-Microsoft ABIs");
-
-    // Enter the cleanup scopes for virtual bases.
-    EnterDtorCleanups(Dtor, Dtor_Complete);
-
-    if (!isTryBody) {
-      QualType ThisTy = Dtor->getThisObjectType();
-      EmitCXXDestructorCall(Dtor, Dtor_Base, /*ForVirtualBase=*/false,
-                            /*Delegating=*/false, LoadCXXThisAddress(), ThisTy);
-      break;
-    }
-
-    // Fallthrough: act like we're in the base variant.
-    LLVM_FALLTHROUGH;
-
-  case Dtor_Base:
-    assert(Body);
-
-    // Enter the cleanup scopes for fields and non-virtual bases.
-    EnterDtorCleanups(Dtor, Dtor_Base);
-
-    // Initialize the vtable pointers before entering the body.
-    if (!CanSkipVTablePointerInitialization(*this, Dtor)) {
-      // Insert the llvm.launder.invariant.group intrinsic before initializing
-      // the vptrs to cancel any previous assumptions we might have made.
-      if (CGM.getCodeGenOpts().StrictVTablePointers &&
-          CGM.getCodeGenOpts().OptimizationLevel > 0)
-        CXXThisValue = Builder.CreateLaunderInvariantGroup(LoadCXXThis());
-      InitializeVTablePointers(Dtor->getParent());
-    }
-
-    if (isTryBody)
-      EmitStmt(cast<CXXTryStmt>(Body)->getTryBlock());
-    else if (Body)
-      EmitStmt(Body);
-    else {
-      assert(Dtor->isImplicit() && "bodyless dtor not implicit");
-      // nothing to do besides what's in the epilogue
-    }
-    // -fapple-kext must inline any call to this dtor into
-    // the caller's body.
-    if (getLangOpts().AppleKext)
-      CurFn->addFnAttr(llvm::Attribute::AlwaysInline);
-
-    break;
-  }
-
-  // Jump out through the epilogue cleanups.
-  DtorEpilogue.ForceCleanup();
-
-  // Exit the try if applicable.
-  if (isTryBody)
-    ExitCXXTryStmt(*cast<CXXTryStmt>(Body), true);
-}
-
-void CodeGenFunction::emitImplicitAssignmentOperatorBody(FunctionArgList &Args) {
-  const CXXMethodDecl *AssignOp = cast<CXXMethodDecl>(CurGD.getDecl());
-  const Stmt *RootS = AssignOp->getBody();
-  assert(isa<CompoundStmt>(RootS) &&
-         "Body of an implicit assignment operator should be compound stmt.");
-  const CompoundStmt *RootCS = cast<CompoundStmt>(RootS);
-
-  LexicalScope Scope(*this, RootCS->getSourceRange());
-
-  incrementProfileCounter(RootCS);
-  AssignmentMemcpyizer AM(*this, AssignOp, Args);
-  for (auto *I : RootCS->body())
-    AM.emitAssignment(I);
-  AM.finish();
-}
-
-namespace {
-  llvm::Value *LoadThisForDtorDelete(CodeGenFunction &CGF,
-                                     const CXXDestructorDecl *DD) {
-    if (Expr *ThisArg = DD->getOperatorDeleteThisArg())
-      return CGF.EmitScalarExpr(ThisArg);
-    return CGF.LoadCXXThis();
-  }
-
-  /// Call the operator delete associated with the current destructor.
-  struct CallDtorDelete final : EHScopeStack::Cleanup {
-    CallDtorDelete() {}
-
-    void Emit(CodeGenFunction &CGF, Flags flags) override {
-      const CXXDestructorDecl *Dtor = cast<CXXDestructorDecl>(CGF.CurCodeDecl);
-      const CXXRecordDecl *ClassDecl = Dtor->getParent();
-      CGF.EmitDeleteCall(Dtor->getOperatorDelete(),
-                         LoadThisForDtorDelete(CGF, Dtor),
-                         CGF.getContext().getTagDeclType(ClassDecl));
-    }
-  };
-
-  void EmitConditionalDtorDeleteCall(CodeGenFunction &CGF,
-                                     llvm::Value *ShouldDeleteCondition,
-                                     bool ReturnAfterDelete) {
-    llvm::BasicBlock *callDeleteBB = CGF.createBasicBlock("dtor.call_delete");
-    llvm::BasicBlock *continueBB = CGF.createBasicBlock("dtor.continue");
-    llvm::Value *ShouldCallDelete
-      = CGF.Builder.CreateIsNull(ShouldDeleteCondition);
-    CGF.Builder.CreateCondBr(ShouldCallDelete, continueBB, callDeleteBB);
-
-    CGF.EmitBlock(callDeleteBB);
-    const CXXDestructorDecl *Dtor = cast<CXXDestructorDecl>(CGF.CurCodeDecl);
-    const CXXRecordDecl *ClassDecl = Dtor->getParent();
-    CGF.EmitDeleteCall(Dtor->getOperatorDelete(),
-                       LoadThisForDtorDelete(CGF, Dtor),
-                       CGF.getContext().getTagDeclType(ClassDecl));
-    assert(Dtor->getOperatorDelete()->isDestroyingOperatorDelete() ==
-               ReturnAfterDelete &&
-           "unexpected value for ReturnAfterDelete");
-    if (ReturnAfterDelete)
-      CGF.EmitBranchThroughCleanup(CGF.ReturnBlock);
-    else
-      CGF.Builder.CreateBr(continueBB);
-
-    CGF.EmitBlock(continueBB);
-  }
-
-  struct CallDtorDeleteConditional final : EHScopeStack::Cleanup {
-    llvm::Value *ShouldDeleteCondition;
-
-  public:
-    CallDtorDeleteConditional(llvm::Value *ShouldDeleteCondition)
-        : ShouldDeleteCondition(ShouldDeleteCondition) {
-      assert(ShouldDeleteCondition != nullptr);
-    }
-
-    void Emit(CodeGenFunction &CGF, Flags flags) override {
-      EmitConditionalDtorDeleteCall(CGF, ShouldDeleteCondition,
-                                    /*ReturnAfterDelete*/false);
-    }
-  };
-
-  class DestroyField  final : public EHScopeStack::Cleanup {
-    const FieldDecl *field;
-    CodeGenFunction::Destroyer *destroyer;
-    bool useEHCleanupForArray;
-
-  public:
-    DestroyField(const FieldDecl *field, CodeGenFunction::Destroyer *destroyer,
-                 bool useEHCleanupForArray)
-        : field(field), destroyer(destroyer),
-          useEHCleanupForArray(useEHCleanupForArray) {}
-
-    void Emit(CodeGenFunction &CGF, Flags flags) override {
-      // Find the address of the field.
-      Address thisValue = CGF.LoadCXXThisAddress();
-      QualType RecordTy = CGF.getContext().getTagDeclType(field->getParent());
-      LValue ThisLV = CGF.MakeAddrLValue(thisValue, RecordTy);
-      LValue LV = CGF.EmitLValueForField(ThisLV, field);
-      assert(LV.isSimple());
-
-      CGF.emitDestroy(LV.getAddress(), field->getType(), destroyer,
-                      flags.isForNormalCleanup() && useEHCleanupForArray);
-    }
-  };
-
- static void EmitSanitizerDtorCallback(CodeGenFunction &CGF, llvm::Value *Ptr,
-             CharUnits::QuantityType PoisonSize) {
-   CodeGenFunction::SanitizerScope SanScope(&CGF);
-   // Pass in void pointer and size of region as arguments to runtime
-   // function
-   llvm::Value *Args[] = {CGF.Builder.CreateBitCast(Ptr, CGF.VoidPtrTy),
-                          llvm::ConstantInt::get(CGF.SizeTy, PoisonSize)};
-
-   llvm::Type *ArgTypes[] = {CGF.VoidPtrTy, CGF.SizeTy};
-
-   llvm::FunctionType *FnType =
-       llvm::FunctionType::get(CGF.VoidTy, ArgTypes, false);
-   llvm::FunctionCallee Fn =
-       CGF.CGM.CreateRuntimeFunction(FnType, "__sanitizer_dtor_callback");
-   CGF.EmitNounwindRuntimeCall(Fn, Args);
- }
-
-  class SanitizeDtorMembers final : public EHScopeStack::Cleanup {
-    const CXXDestructorDecl *Dtor;
-
-  public:
-    SanitizeDtorMembers(const CXXDestructorDecl *Dtor) : Dtor(Dtor) {}
-
-    // Generate function call for handling object poisoning.
-    // Disables tail call elimination, to prevent the current stack frame
-    // from disappearing from the stack trace.
-    void Emit(CodeGenFunction &CGF, Flags flags) override {
-      const ASTRecordLayout &Layout =
-          CGF.getContext().getASTRecordLayout(Dtor->getParent());
-
-      // Nothing to poison.
-      if (Layout.getFieldCount() == 0)
-        return;
-
-      // Prevent the current stack frame from disappearing from the stack trace.
-      CGF.CurFn->addFnAttr("disable-tail-calls", "true");
-
-      // Construct pointer to region to begin poisoning, and calculate poison
-      // size, so that only members declared in this class are poisoned.
-      ASTContext &Context = CGF.getContext();
-      unsigned fieldIndex = 0;
-      int startIndex = -1;
-      // RecordDecl::field_iterator Field;
-      for (const FieldDecl *Field : Dtor->getParent()->fields()) {
-        // Poison field if it is trivial
-        if (FieldHasTrivialDestructorBody(Context, Field)) {
-          // Start sanitizing at this field
-          if (startIndex < 0)
-            startIndex = fieldIndex;
-
-          // Currently on the last field, and it must be poisoned with the
-          // current block.
-          if (fieldIndex == Layout.getFieldCount() - 1) {
-            PoisonMembers(CGF, startIndex, Layout.getFieldCount());
-          }
-        } else if (startIndex >= 0) {
-          // No longer within a block of memory to poison, so poison the block
-          PoisonMembers(CGF, startIndex, fieldIndex);
-          // Re-set the start index
-          startIndex = -1;
-        }
-        fieldIndex += 1;
-      }
-    }
-
-  private:
-    /// \param layoutStartOffset index of the ASTRecordLayout field to
-    ///     start poisoning (inclusive)
-    /// \param layoutEndOffset index of the ASTRecordLayout field to
-    ///     end poisoning (exclusive)
-    void PoisonMembers(CodeGenFunction &CGF, unsigned layoutStartOffset,
-                     unsigned layoutEndOffset) {
-      ASTContext &Context = CGF.getContext();
-      const ASTRecordLayout &Layout =
-          Context.getASTRecordLayout(Dtor->getParent());
-
-      llvm::ConstantInt *OffsetSizePtr = llvm::ConstantInt::get(
-          CGF.SizeTy,
-          Context.toCharUnitsFromBits(Layout.getFieldOffset(layoutStartOffset))
-              .getQuantity());
-
-      llvm::Value *OffsetPtr = CGF.Builder.CreateGEP(
-          CGF.Builder.CreateBitCast(CGF.LoadCXXThis(), CGF.Int8PtrTy),
-          OffsetSizePtr);
-
-      CharUnits::QuantityType PoisonSize;
-      if (layoutEndOffset >= Layout.getFieldCount()) {
-        PoisonSize = Layout.getNonVirtualSize().getQuantity() -
-                     Context.toCharUnitsFromBits(
-                                Layout.getFieldOffset(layoutStartOffset))
-                         .getQuantity();
-      } else {
-        PoisonSize = Context.toCharUnitsFromBits(
-                                Layout.getFieldOffset(layoutEndOffset) -
-                                Layout.getFieldOffset(layoutStartOffset))
-                         .getQuantity();
-      }
-
-      if (PoisonSize == 0)
-        return;
-
-      EmitSanitizerDtorCallback(CGF, OffsetPtr, PoisonSize);
-    }
-  };
-
- class SanitizeDtorVTable final : public EHScopeStack::Cleanup {
-    const CXXDestructorDecl *Dtor;
-
-  public:
-    SanitizeDtorVTable(const CXXDestructorDecl *Dtor) : Dtor(Dtor) {}
-
-    // Generate function call for handling vtable pointer poisoning.
-    void Emit(CodeGenFunction &CGF, Flags flags) override {
-      assert(Dtor->getParent()->isDynamicClass());
-      (void)Dtor;
-      ASTContext &Context = CGF.getContext();
-      // Poison vtable and vtable ptr if they exist for this class.
-      llvm::Value *VTablePtr = CGF.LoadCXXThis();
-
-      CharUnits::QuantityType PoisonSize =
-          Context.toCharUnitsFromBits(CGF.PointerWidthInBits).getQuantity();
-      // Pass in void pointer and size of region as arguments to runtime
-      // function
-      EmitSanitizerDtorCallback(CGF, VTablePtr, PoisonSize);
-    }
- };
-} // end anonymous namespace
-
-/// Emit all code that comes at the end of class's
-/// destructor. This is to call destructors on members and base classes
-/// in reverse order of their construction.
-///
-/// For a deleting destructor, this also handles the case where a destroying
-/// operator delete completely overrides the definition.
-void CodeGenFunction::EnterDtorCleanups(const CXXDestructorDecl *DD,
-                                        CXXDtorType DtorType) {
-  assert((!DD->isTrivial() || DD->hasAttr<DLLExportAttr>()) &&
-         "Should not emit dtor epilogue for non-exported trivial dtor!");
-
-  // The deleting-destructor phase just needs to call the appropriate
-  // operator delete that Sema picked up.
-  if (DtorType == Dtor_Deleting) {
-    assert(DD->getOperatorDelete() &&
-           "operator delete missing - EnterDtorCleanups");
-    if (CXXStructorImplicitParamValue) {
-      // If there is an implicit param to the deleting dtor, it's a boolean
-      // telling whether this is a deleting destructor.
-      if (DD->getOperatorDelete()->isDestroyingOperatorDelete())
-        EmitConditionalDtorDeleteCall(*this, CXXStructorImplicitParamValue,
-                                      /*ReturnAfterDelete*/true);
-      else
-        EHStack.pushCleanup<CallDtorDeleteConditional>(
-            NormalAndEHCleanup, CXXStructorImplicitParamValue);
-    } else {
-      if (DD->getOperatorDelete()->isDestroyingOperatorDelete()) {
-        const CXXRecordDecl *ClassDecl = DD->getParent();
-        EmitDeleteCall(DD->getOperatorDelete(),
-                       LoadThisForDtorDelete(*this, DD),
-                       getContext().getTagDeclType(ClassDecl));
-        EmitBranchThroughCleanup(ReturnBlock);
-      } else {
-        EHStack.pushCleanup<CallDtorDelete>(NormalAndEHCleanup);
-      }
-    }
-    return;
-  }
-
-  const CXXRecordDecl *ClassDecl = DD->getParent();
-
-  // Unions have no bases and do not call field destructors.
-  if (ClassDecl->isUnion())
-    return;
-
-  // The complete-destructor phase just destructs all the virtual bases.
-  if (DtorType == Dtor_Complete) {
-    // Poison the vtable pointer such that access after the base
-    // and member destructors are invoked is invalid.
-    if (CGM.getCodeGenOpts().SanitizeMemoryUseAfterDtor &&
-        SanOpts.has(SanitizerKind::Memory) && ClassDecl->getNumVBases() &&
-        ClassDecl->isPolymorphic())
-      EHStack.pushCleanup<SanitizeDtorVTable>(NormalAndEHCleanup, DD);
-
-    // We push them in the forward order so that they'll be popped in
-    // the reverse order.
-    for (const auto &Base : ClassDecl->vbases()) {
-      CXXRecordDecl *BaseClassDecl
-        = cast<CXXRecordDecl>(Base.getType()->getAs<RecordType>()->getDecl());
-
-      // Ignore trivial destructors.
-      if (BaseClassDecl->hasTrivialDestructor())
-        continue;
-
-      EHStack.pushCleanup<CallBaseDtor>(NormalAndEHCleanup,
-                                        BaseClassDecl,
-                                        /*BaseIsVirtual*/ true);
-    }
-
-    return;
-  }
-
-  assert(DtorType == Dtor_Base);
-  // Poison the vtable pointer if it has no virtual bases, but inherits
-  // virtual functions.
-  if (CGM.getCodeGenOpts().SanitizeMemoryUseAfterDtor &&
-      SanOpts.has(SanitizerKind::Memory) && !ClassDecl->getNumVBases() &&
-      ClassDecl->isPolymorphic())
-    EHStack.pushCleanup<SanitizeDtorVTable>(NormalAndEHCleanup, DD);
-
-  // Destroy non-virtual bases.
-  for (const auto &Base : ClassDecl->bases()) {
-    // Ignore virtual bases.
-    if (Base.isVirtual())
-      continue;
-
-    CXXRecordDecl *BaseClassDecl = Base.getType()->getAsCXXRecordDecl();
-
-    // Ignore trivial destructors.
-    if (BaseClassDecl->hasTrivialDestructor())
-      continue;
-
-    EHStack.pushCleanup<CallBaseDtor>(NormalAndEHCleanup,
-                                      BaseClassDecl,
-                                      /*BaseIsVirtual*/ false);
-  }
-
-  // Poison fields such that access after their destructors are
-  // invoked, and before the base class destructor runs, is invalid.
-  if (CGM.getCodeGenOpts().SanitizeMemoryUseAfterDtor &&
-      SanOpts.has(SanitizerKind::Memory))
-    EHStack.pushCleanup<SanitizeDtorMembers>(NormalAndEHCleanup, DD);
-
-  // Destroy direct fields.
-  for (const auto *Field : ClassDecl->fields()) {
-    QualType type = Field->getType();
-    QualType::DestructionKind dtorKind = type.isDestructedType();
-    if (!dtorKind) continue;
-
-    // Anonymous union members do not have their destructors called.
-    const RecordType *RT = type->getAsUnionType();
-    if (RT && RT->getDecl()->isAnonymousStructOrUnion()) continue;
-
-    CleanupKind cleanupKind = getCleanupKind(dtorKind);
-    EHStack.pushCleanup<DestroyField>(cleanupKind, Field,
-                                      getDestroyer(dtorKind),
-                                      cleanupKind & EHCleanup);
-  }
-}
-
-/// EmitCXXAggrConstructorCall - Emit a loop to call a particular
-/// constructor for each of several members of an array.
-///
-/// \param ctor the constructor to call for each element
-/// \param arrayType the type of the array to initialize
-/// \param arrayBegin an arrayType*
-/// \param zeroInitialize true if each element should be
-///   zero-initialized before it is constructed
-void CodeGenFunction::EmitCXXAggrConstructorCall(
-    const CXXConstructorDecl *ctor, const ArrayType *arrayType,
-    Address arrayBegin, const CXXConstructExpr *E, bool NewPointerIsChecked,
-    bool zeroInitialize) {
-  QualType elementType;
-  llvm::Value *numElements =
-    emitArrayLength(arrayType, elementType, arrayBegin);
-
-  EmitCXXAggrConstructorCall(ctor, numElements, arrayBegin, E,
-                             NewPointerIsChecked, zeroInitialize);
-}
-
-/// EmitCXXAggrConstructorCall - Emit a loop to call a particular
-/// constructor for each of several members of an array.
-///
-/// \param ctor the constructor to call for each element
-/// \param numElements the number of elements in the array;
-///   may be zero
-/// \param arrayBase a T*, where T is the type constructed by ctor
-/// \param zeroInitialize true if each element should be
-///   zero-initialized before it is constructed
-void CodeGenFunction::EmitCXXAggrConstructorCall(const CXXConstructorDecl *ctor,
-                                                 llvm::Value *numElements,
-                                                 Address arrayBase,
-                                                 const CXXConstructExpr *E,
-                                                 bool NewPointerIsChecked,
-                                                 bool zeroInitialize) {
-  // It's legal for numElements to be zero.  This can happen both
-  // dynamically, because x can be zero in 'new A[x]', and statically,
-  // because of GCC extensions that permit zero-length arrays.  There
-  // are probably legitimate places where we could assume that this
-  // doesn't happen, but it's not clear that it's worth it.
-  llvm::BranchInst *zeroCheckBranch = nullptr;
-
-  // Optimize for a constant count.
-  llvm::ConstantInt *constantCount
-    = dyn_cast<llvm::ConstantInt>(numElements);
-  if (constantCount) {
-    // Just skip out if the constant count is zero.
-    if (constantCount->isZero()) return;
-
-  // Otherwise, emit the check.
-  } else {
-    llvm::BasicBlock *loopBB = createBasicBlock("new.ctorloop");
-    llvm::Value *iszero = Builder.CreateIsNull(numElements, "isempty");
-    zeroCheckBranch = Builder.CreateCondBr(iszero, loopBB, loopBB);
-    EmitBlock(loopBB);
-  }
-
-  // Find the end of the array.
-  llvm::Value *arrayBegin = arrayBase.getPointer();
-  llvm::Value *arrayEnd = Builder.CreateInBoundsGEP(arrayBegin, numElements,
-                                                    "arrayctor.end");
-
-  // Enter the loop, setting up a phi for the current location to initialize.
-  llvm::BasicBlock *entryBB = Builder.GetInsertBlock();
-  llvm::BasicBlock *loopBB = createBasicBlock("arrayctor.loop");
-  EmitBlock(loopBB);
-  llvm::PHINode *cur = Builder.CreatePHI(arrayBegin->getType(), 2,
-                                         "arrayctor.cur");
-  cur->addIncoming(arrayBegin, entryBB);
-
-  // Inside the loop body, emit the constructor call on the array element.
-
-  // The alignment of the base, adjusted by the size of a single element,
-  // provides a conservative estimate of the alignment of every element.
-  // (This assumes we never start tracking offsetted alignments.)
-  //
-  // Note that these are complete objects and so we don't need to
-  // use the non-virtual size or alignment.
-  QualType type = getContext().getTypeDeclType(ctor->getParent());
-  CharUnits eltAlignment =
-    arrayBase.getAlignment()
-             .alignmentOfArrayElement(getContext().getTypeSizeInChars(type));
-  Address curAddr = Address(cur, eltAlignment);
-
-  // Zero initialize the storage, if requested.
-  if (zeroInitialize)
-    EmitNullInitialization(curAddr, type);
-
-  // C++ [class.temporary]p4:
-  // There are two contexts in which temporaries are destroyed at a different
-  // point than the end of the full-expression. The first context is when a
-  // default constructor is called to initialize an element of an array.
-  // If the constructor has one or more default arguments, the destruction of
-  // every temporary created in a default argument expression is sequenced
-  // before the construction of the next array element, if any.
-
-  {
-    RunCleanupsScope Scope(*this);
-
-    // Evaluate the constructor and its arguments in a regular
-    // partial-destroy cleanup.
-    if (getLangOpts().Exceptions &&
-        !ctor->getParent()->hasTrivialDestructor()) {
-      Destroyer *destroyer = destroyCXXObject;
-      pushRegularPartialArrayCleanup(arrayBegin, cur, type, eltAlignment,
-                                     *destroyer);
-    }
-    auto currAVS = AggValueSlot::forAddr(
-        curAddr, type.getQualifiers(), AggValueSlot::IsDestructed,
-        AggValueSlot::DoesNotNeedGCBarriers, AggValueSlot::IsNotAliased,
-        AggValueSlot::DoesNotOverlap, AggValueSlot::IsNotZeroed,
-        NewPointerIsChecked ? AggValueSlot::IsSanitizerChecked
-                            : AggValueSlot::IsNotSanitizerChecked);
-    EmitCXXConstructorCall(ctor, Ctor_Complete, /*ForVirtualBase=*/false,
-                           /*Delegating=*/false, currAVS, E);
-  }
-
-  // Go to the next element.
-  llvm::Value *next =
-    Builder.CreateInBoundsGEP(cur, llvm::ConstantInt::get(SizeTy, 1),
-                              "arrayctor.next");
-  cur->addIncoming(next, Builder.GetInsertBlock());
-
-  // Check whether that's the end of the loop.
-  llvm::Value *done = Builder.CreateICmpEQ(next, arrayEnd, "arrayctor.done");
-  llvm::BasicBlock *contBB = createBasicBlock("arrayctor.cont");
-  Builder.CreateCondBr(done, contBB, loopBB);
-
-  // Patch the earlier check to skip over the loop.
-  if (zeroCheckBranch) zeroCheckBranch->setSuccessor(0, contBB);
-
-  EmitBlock(contBB);
-}
-
-void CodeGenFunction::destroyCXXObject(CodeGenFunction &CGF,
-                                       Address addr,
-                                       QualType type) {
-  const RecordType *rtype = type->castAs<RecordType>();
-  const CXXRecordDecl *record = cast<CXXRecordDecl>(rtype->getDecl());
-  const CXXDestructorDecl *dtor = record->getDestructor();
-  assert(!dtor->isTrivial());
-  CGF.EmitCXXDestructorCall(dtor, Dtor_Complete, /*for vbase*/ false,
-                            /*Delegating=*/false, addr, type);
-}
-
-void CodeGenFunction::EmitCXXConstructorCall(const CXXConstructorDecl *D,
-                                             CXXCtorType Type,
-                                             bool ForVirtualBase,
-                                             bool Delegating,
-                                             AggValueSlot ThisAVS,
-                                             const CXXConstructExpr *E) {
-  CallArgList Args;
-  Address This = ThisAVS.getAddress();
-  LangAS SlotAS = ThisAVS.getQualifiers().getAddressSpace();
-  QualType ThisType = D->getThisType();
-  LangAS ThisAS = ThisType.getTypePtr()->getPointeeType().getAddressSpace();
-  llvm::Value *ThisPtr = This.getPointer();
-
-  if (SlotAS != ThisAS) {
-    unsigned TargetThisAS = getContext().getTargetAddressSpace(ThisAS);
-    llvm::Type *NewType =
-        ThisPtr->getType()->getPointerElementType()->getPointerTo(TargetThisAS);
-    ThisPtr = getTargetHooks().performAddrSpaceCast(*this, This.getPointer(),
-                                                    ThisAS, SlotAS, NewType);
-  }
-
-  // Push the this ptr.
-  Args.add(RValue::get(ThisPtr), D->getThisType());
-
-  // If this is a trivial constructor, emit a memcpy now before we lose
-  // the alignment information on the argument.
-  // FIXME: It would be better to preserve alignment information into CallArg.
-  if (isMemcpyEquivalentSpecialMember(D)) {
-    assert(E->getNumArgs() == 1 && "unexpected argcount for trivial ctor");
-
-    const Expr *Arg = E->getArg(0);
-    LValue Src = EmitLValue(Arg);
-    QualType DestTy = getContext().getTypeDeclType(D->getParent());
-    LValue Dest = MakeAddrLValue(This, DestTy);
-    EmitAggregateCopyCtor(Dest, Src, ThisAVS.mayOverlap());
-    return;
-  }
-
-  // Add the rest of the user-supplied arguments.
-  const FunctionProtoType *FPT = D->getType()->castAs<FunctionProtoType>();
-  EvaluationOrder Order = E->isListInitialization()
-                              ? EvaluationOrder::ForceLeftToRight
-                              : EvaluationOrder::Default;
-  EmitCallArgs(Args, FPT, E->arguments(), E->getConstructor(),
-               /*ParamsToSkip*/ 0, Order);
-
-  EmitCXXConstructorCall(D, Type, ForVirtualBase, Delegating, This, Args,
-                         ThisAVS.mayOverlap(), E->getExprLoc(),
-                         ThisAVS.isSanitizerChecked());
-}
-
-static bool canEmitDelegateCallArgs(CodeGenFunction &CGF,
-                                    const CXXConstructorDecl *Ctor,
-                                    CXXCtorType Type, CallArgList &Args) {
-  // We can't forward a variadic call.
-  if (Ctor->isVariadic())
-    return false;
-
-  if (CGF.getTarget().getCXXABI().areArgsDestroyedLeftToRightInCallee()) {
-    // If the parameters are callee-cleanup, it's not safe to forward.
-    for (auto *P : Ctor->parameters())
-      if (P->getType().isDestructedType())
-        return false;
-
-    // Likewise if they're inalloca.
-    const CGFunctionInfo &Info =
-        CGF.CGM.getTypes().arrangeCXXConstructorCall(Args, Ctor, Type, 0, 0);
-    if (Info.usesInAlloca())
-      return false;
-  }
-
-  // Anything else should be OK.
-  return true;
-}
-
-void CodeGenFunction::EmitCXXConstructorCall(const CXXConstructorDecl *D,
-                                             CXXCtorType Type,
-                                             bool ForVirtualBase,
-                                             bool Delegating,
-                                             Address This,
-                                             CallArgList &Args,
-                                             AggValueSlot::Overlap_t Overlap,
-                                             SourceLocation Loc,
-                                             bool NewPointerIsChecked) {
-  const CXXRecordDecl *ClassDecl = D->getParent();
-
-  if (!NewPointerIsChecked)
-    EmitTypeCheck(CodeGenFunction::TCK_ConstructorCall, Loc, This.getPointer(),
-                  getContext().getRecordType(ClassDecl), CharUnits::Zero());
-
-  if (D->isTrivial() && D->isDefaultConstructor()) {
-    assert(Args.size() == 1 && "trivial default ctor with args");
-    return;
-  }
-
-  // If this is a trivial constructor, just emit what's needed. If this is a
-  // union copy constructor, we must emit a memcpy, because the AST does not
-  // model that copy.
-  if (isMemcpyEquivalentSpecialMember(D)) {
-    assert(Args.size() == 2 && "unexpected argcount for trivial ctor");
-
-    QualType SrcTy = D->getParamDecl(0)->getType().getNonReferenceType();
-    Address Src(Args[1].getRValue(*this).getScalarVal(),
-                getNaturalTypeAlignment(SrcTy));
-    LValue SrcLVal = MakeAddrLValue(Src, SrcTy);
-    QualType DestTy = getContext().getTypeDeclType(ClassDecl);
-    LValue DestLVal = MakeAddrLValue(This, DestTy);
-    EmitAggregateCopyCtor(DestLVal, SrcLVal, Overlap);
-    return;
-  }
-
-  bool PassPrototypeArgs = true;
-  // Check whether we can actually emit the constructor before trying to do so.
-  if (auto Inherited = D->getInheritedConstructor()) {
-    PassPrototypeArgs = getTypes().inheritingCtorHasParams(Inherited, Type);
-    if (PassPrototypeArgs && !canEmitDelegateCallArgs(*this, D, Type, Args)) {
-      EmitInlinedInheritingCXXConstructorCall(D, Type, ForVirtualBase,
-                                              Delegating, Args);
-      return;
-    }
-  }
-
-  // Insert any ABI-specific implicit constructor arguments.
-  CGCXXABI::AddedStructorArgs ExtraArgs =
-      CGM.getCXXABI().addImplicitConstructorArgs(*this, D, Type, ForVirtualBase,
-                                                 Delegating, Args);
-
-  // Emit the call.
-  llvm::Constant *CalleePtr = CGM.getAddrOfCXXStructor(GlobalDecl(D, Type));
-  const CGFunctionInfo &Info = CGM.getTypes().arrangeCXXConstructorCall(
-      Args, D, Type, ExtraArgs.Prefix, ExtraArgs.Suffix, PassPrototypeArgs);
-  CGCallee Callee = CGCallee::forDirect(CalleePtr, GlobalDecl(D, Type));
-  EmitCall(Info, Callee, ReturnValueSlot(), Args);
-
-  // Generate vtable assumptions if we're constructing a complete object
-  // with a vtable.  We don't do this for base subobjects for two reasons:
-  // first, it's incorrect for classes with virtual bases, and second, we're
-  // about to overwrite the vptrs anyway.
-  // We also have to make sure if we can refer to vtable:
-  // - Otherwise we can refer to vtable if it's safe to speculatively emit.
-  // FIXME: If vtable is used by ctor/dtor, or if vtable is external and we are
-  // sure that definition of vtable is not hidden,
-  // then we are always safe to refer to it.
-  // FIXME: It looks like InstCombine is very inefficient on dealing with
-  // assumes. Make assumption loads require -fstrict-vtable-pointers temporarily.
-  if (CGM.getCodeGenOpts().OptimizationLevel > 0 &&
-      ClassDecl->isDynamicClass() && Type != Ctor_Base &&
-      CGM.getCXXABI().canSpeculativelyEmitVTable(ClassDecl) &&
-      CGM.getCodeGenOpts().StrictVTablePointers)
-    EmitVTableAssumptionLoads(ClassDecl, This);
-}
-
-void CodeGenFunction::EmitInheritedCXXConstructorCall(
-    const CXXConstructorDecl *D, bool ForVirtualBase, Address This,
-    bool InheritedFromVBase, const CXXInheritedCtorInitExpr *E) {
-  CallArgList Args;
-  CallArg ThisArg(RValue::get(This.getPointer()), D->getThisType());
-
-  // Forward the parameters.
-  if (InheritedFromVBase &&
-      CGM.getTarget().getCXXABI().hasConstructorVariants()) {
-    // Nothing to do; this construction is not responsible for constructing
-    // the base class containing the inherited constructor.
-    // FIXME: Can we just pass undef's for the remaining arguments if we don't
-    // have constructor variants?
-    Args.push_back(ThisArg);
-  } else if (!CXXInheritedCtorInitExprArgs.empty()) {
-    // The inheriting constructor was inlined; just inject its arguments.
-    assert(CXXInheritedCtorInitExprArgs.size() >= D->getNumParams() &&
-           "wrong number of parameters for inherited constructor call");
-    Args = CXXInheritedCtorInitExprArgs;
-    Args[0] = ThisArg;
-  } else {
-    // The inheriting constructor was not inlined. Emit delegating arguments.
-    Args.push_back(ThisArg);
-    const auto *OuterCtor = cast<CXXConstructorDecl>(CurCodeDecl);
-    assert(OuterCtor->getNumParams() == D->getNumParams());
-    assert(!OuterCtor->isVariadic() && "should have been inlined");
-
-    for (const auto *Param : OuterCtor->parameters()) {
-      assert(getContext().hasSameUnqualifiedType(
-          OuterCtor->getParamDecl(Param->getFunctionScopeIndex())->getType(),
-          Param->getType()));
-      EmitDelegateCallArg(Args, Param, E->getLocation());
-
-      // Forward __attribute__(pass_object_size).
-      if (Param->hasAttr<PassObjectSizeAttr>()) {
-        auto *POSParam = SizeArguments[Param];
-        assert(POSParam && "missing pass_object_size value for forwarding");
-        EmitDelegateCallArg(Args, POSParam, E->getLocation());
-      }
-    }
-  }
-
-  EmitCXXConstructorCall(D, Ctor_Base, ForVirtualBase, /*Delegating*/false,
-                         This, Args, AggValueSlot::MayOverlap,
-                         E->getLocation(), /*NewPointerIsChecked*/true);
-}
-
-void CodeGenFunction::EmitInlinedInheritingCXXConstructorCall(
-    const CXXConstructorDecl *Ctor, CXXCtorType CtorType, bool ForVirtualBase,
-    bool Delegating, CallArgList &Args) {
-  GlobalDecl GD(Ctor, CtorType);
-  InlinedInheritingConstructorScope Scope(*this, GD);
-  ApplyInlineDebugLocation DebugScope(*this, GD);
-  RunCleanupsScope RunCleanups(*this);
-
-  // Save the arguments to be passed to the inherited constructor.
-  CXXInheritedCtorInitExprArgs = Args;
-
-  FunctionArgList Params;
-  QualType RetType = BuildFunctionArgList(CurGD, Params);
-  FnRetTy = RetType;
-
-  // Insert any ABI-specific implicit constructor arguments.
-  CGM.getCXXABI().addImplicitConstructorArgs(*this, Ctor, CtorType,
-                                             ForVirtualBase, Delegating, Args);
-
-  // Emit a simplified prolog. We only need to emit the implicit params.
-  assert(Args.size() >= Params.size() && "too few arguments for call");
-  for (unsigned I = 0, N = Args.size(); I != N; ++I) {
-    if (I < Params.size() && isa<ImplicitParamDecl>(Params[I])) {
-      const RValue &RV = Args[I].getRValue(*this);
-      assert(!RV.isComplex() && "complex indirect params not supported");
-      ParamValue Val = RV.isScalar()
-                           ? ParamValue::forDirect(RV.getScalarVal())
-                           : ParamValue::forIndirect(RV.getAggregateAddress());
-      EmitParmDecl(*Params[I], Val, I + 1);
-    }
-  }
-
-  // Create a return value slot if the ABI implementation wants one.
-  // FIXME: This is dumb, we should ask the ABI not to try to set the return
-  // value instead.
-  if (!RetType->isVoidType())
-    ReturnValue = CreateIRTemp(RetType, "retval.inhctor");
-
-  CGM.getCXXABI().EmitInstanceFunctionProlog(*this);
-  CXXThisValue = CXXABIThisValue;
-
-  // Directly emit the constructor initializers.
-  EmitCtorPrologue(Ctor, CtorType, Params);
-}
-
-void CodeGenFunction::EmitVTableAssumptionLoad(const VPtr &Vptr, Address This) {
-  llvm::Value *VTableGlobal =
-      CGM.getCXXABI().getVTableAddressPoint(Vptr.Base, Vptr.VTableClass);
-  if (!VTableGlobal)
-    return;
-
-  // We can just use the base offset in the complete class.
-  CharUnits NonVirtualOffset = Vptr.Base.getBaseOffset();
-
-  if (!NonVirtualOffset.isZero())
-    This =
-        ApplyNonVirtualAndVirtualOffset(*this, This, NonVirtualOffset, nullptr,
-                                        Vptr.VTableClass, Vptr.NearestVBase);
-
-  llvm::Value *VPtrValue =
-      GetVTablePtr(This, VTableGlobal->getType(), Vptr.VTableClass);
-  llvm::Value *Cmp =
-      Builder.CreateICmpEQ(VPtrValue, VTableGlobal, "cmp.vtables");
-  Builder.CreateAssumption(Cmp);
-}
-
-void CodeGenFunction::EmitVTableAssumptionLoads(const CXXRecordDecl *ClassDecl,
-                                                Address This) {
-  if (CGM.getCXXABI().doStructorsInitializeVPtrs(ClassDecl))
-    for (const VPtr &Vptr : getVTablePointers(ClassDecl))
-      EmitVTableAssumptionLoad(Vptr, This);
-}
-
-void
-CodeGenFunction::EmitSynthesizedCXXCopyCtorCall(const CXXConstructorDecl *D,
-                                                Address This, Address Src,
-                                                const CXXConstructExpr *E) {
-  const FunctionProtoType *FPT = D->getType()->castAs<FunctionProtoType>();
-
-  CallArgList Args;
-
-  // Push the this ptr.
-  Args.add(RValue::get(This.getPointer()), D->getThisType());
-
-  // Push the src ptr.
-  QualType QT = *(FPT->param_type_begin());
-  llvm::Type *t = CGM.getTypes().ConvertType(QT);
-  Src = Builder.CreateBitCast(Src, t);
-  Args.add(RValue::get(Src.getPointer()), QT);
-
-  // Skip over first argument (Src).
-  EmitCallArgs(Args, FPT, drop_begin(E->arguments(), 1), E->getConstructor(),
-               /*ParamsToSkip*/ 1);
-
-  EmitCXXConstructorCall(D, Ctor_Complete, /*ForVirtualBase*/false,
-                         /*Delegating*/false, This, Args,
-                         AggValueSlot::MayOverlap, E->getExprLoc(),
-                         /*NewPointerIsChecked*/false);
-}
-
-void
-CodeGenFunction::EmitDelegateCXXConstructorCall(const CXXConstructorDecl *Ctor,
-                                                CXXCtorType CtorType,
-                                                const FunctionArgList &Args,
-                                                SourceLocation Loc) {
-  CallArgList DelegateArgs;
-
-  FunctionArgList::const_iterator I = Args.begin(), E = Args.end();
-  assert(I != E && "no parameters to constructor");
-
-  // this
-  Address This = LoadCXXThisAddress();
-  DelegateArgs.add(RValue::get(This.getPointer()), (*I)->getType());
-  ++I;
-
-  // FIXME: The location of the VTT parameter in the parameter list is
-  // specific to the Itanium ABI and shouldn't be hardcoded here.
-  if (CGM.getCXXABI().NeedsVTTParameter(CurGD)) {
-    assert(I != E && "cannot skip vtt parameter, already done with args");
-    assert((*I)->getType()->isPointerType() &&
-           "skipping parameter not of vtt type");
-    ++I;
-  }
-
-  // Explicit arguments.
-  for (; I != E; ++I) {
-    const VarDecl *param = *I;
-    // FIXME: per-argument source location
-    EmitDelegateCallArg(DelegateArgs, param, Loc);
-  }
-
-  EmitCXXConstructorCall(Ctor, CtorType, /*ForVirtualBase=*/false,
-                         /*Delegating=*/true, This, DelegateArgs,
-                         AggValueSlot::MayOverlap, Loc,
-                         /*NewPointerIsChecked=*/true);
-}
-
-namespace {
-  struct CallDelegatingCtorDtor final : EHScopeStack::Cleanup {
-    const CXXDestructorDecl *Dtor;
-    Address Addr;
-    CXXDtorType Type;
-
-    CallDelegatingCtorDtor(const CXXDestructorDecl *D, Address Addr,
-                           CXXDtorType Type)
-      : Dtor(D), Addr(Addr), Type(Type) {}
-
-    void Emit(CodeGenFunction &CGF, Flags flags) override {
-      // We are calling the destructor from within the constructor.
-      // Therefore, "this" should have the expected type.
-      QualType ThisTy = Dtor->getThisObjectType();
-      CGF.EmitCXXDestructorCall(Dtor, Type, /*ForVirtualBase=*/false,
-                                /*Delegating=*/true, Addr, ThisTy);
-    }
-  };
-} // end anonymous namespace
-
-void
-CodeGenFunction::EmitDelegatingCXXConstructorCall(const CXXConstructorDecl *Ctor,
-                                                  const FunctionArgList &Args) {
-  assert(Ctor->isDelegatingConstructor());
-
-  Address ThisPtr = LoadCXXThisAddress();
-
-  AggValueSlot AggSlot =
-    AggValueSlot::forAddr(ThisPtr, Qualifiers(),
-                          AggValueSlot::IsDestructed,
-                          AggValueSlot::DoesNotNeedGCBarriers,
-                          AggValueSlot::IsNotAliased,
-                          AggValueSlot::MayOverlap,
-                          AggValueSlot::IsNotZeroed,
-                          // Checks are made by the code that calls constructor.
-                          AggValueSlot::IsSanitizerChecked);
-
-  EmitAggExpr(Ctor->init_begin()[0]->getInit(), AggSlot);
-
-  const CXXRecordDecl *ClassDecl = Ctor->getParent();
-  if (CGM.getLangOpts().Exceptions && !ClassDecl->hasTrivialDestructor()) {
-    CXXDtorType Type =
-      CurGD.getCtorType() == Ctor_Complete ? Dtor_Complete : Dtor_Base;
-
-    EHStack.pushCleanup<CallDelegatingCtorDtor>(EHCleanup,
-                                                ClassDecl->getDestructor(),
-                                                ThisPtr, Type);
-  }
-}
-
-void CodeGenFunction::EmitCXXDestructorCall(const CXXDestructorDecl *DD,
-                                            CXXDtorType Type,
-                                            bool ForVirtualBase,
-                                            bool Delegating, Address This,
-                                            QualType ThisTy) {
-  CGM.getCXXABI().EmitDestructorCall(*this, DD, Type, ForVirtualBase,
-                                     Delegating, This, ThisTy);
-}
-
-namespace {
-  struct CallLocalDtor final : EHScopeStack::Cleanup {
-    const CXXDestructorDecl *Dtor;
-    Address Addr;
-    QualType Ty;
-
-    CallLocalDtor(const CXXDestructorDecl *D, Address Addr, QualType Ty)
-        : Dtor(D), Addr(Addr), Ty(Ty) {}
-
-    void Emit(CodeGenFunction &CGF, Flags flags) override {
-      CGF.EmitCXXDestructorCall(Dtor, Dtor_Complete,
-                                /*ForVirtualBase=*/false,
-                                /*Delegating=*/false, Addr, Ty);
-    }
-  };
-} // end anonymous namespace
-
-void CodeGenFunction::PushDestructorCleanup(const CXXDestructorDecl *D,
-                                            QualType T, Address Addr) {
-  EHStack.pushCleanup<CallLocalDtor>(NormalAndEHCleanup, D, Addr, T);
-}
-
-void CodeGenFunction::PushDestructorCleanup(QualType T, Address Addr) {
-  CXXRecordDecl *ClassDecl = T->getAsCXXRecordDecl();
-  if (!ClassDecl) return;
-  if (ClassDecl->hasTrivialDestructor()) return;
-
-  const CXXDestructorDecl *D = ClassDecl->getDestructor();
-  assert(D && D->isUsed() && "destructor not marked as used!");
-  PushDestructorCleanup(D, T, Addr);
-}
-
-void CodeGenFunction::InitializeVTablePointer(const VPtr &Vptr) {
-  // Compute the address point.
-  llvm::Value *VTableAddressPoint =
-      CGM.getCXXABI().getVTableAddressPointInStructor(
-          *this, Vptr.VTableClass, Vptr.Base, Vptr.NearestVBase);
-
-  if (!VTableAddressPoint)
-    return;
-
-  // Compute where to store the address point.
-  llvm::Value *VirtualOffset = nullptr;
-  CharUnits NonVirtualOffset = CharUnits::Zero();
-
-  if (CGM.getCXXABI().isVirtualOffsetNeededForVTableField(*this, Vptr)) {
-    // We need to use the virtual base offset offset because the virtual base
-    // might have a different offset in the most derived class.
-
-    VirtualOffset = CGM.getCXXABI().GetVirtualBaseClassOffset(
-        *this, LoadCXXThisAddress(), Vptr.VTableClass, Vptr.NearestVBase);
-    NonVirtualOffset = Vptr.OffsetFromNearestVBase;
-  } else {
-    // We can just use the base offset in the complete class.
-    NonVirtualOffset = Vptr.Base.getBaseOffset();
-  }
-
-  // Apply the offsets.
-  Address VTableField = LoadCXXThisAddress();
-
-  if (!NonVirtualOffset.isZero() || VirtualOffset)
-    VTableField = ApplyNonVirtualAndVirtualOffset(
-        *this, VTableField, NonVirtualOffset, VirtualOffset, Vptr.VTableClass,
-        Vptr.NearestVBase);
-
-  // Finally, store the address point. Use the same LLVM types as the field to
-  // support optimization.
-  llvm::Type *VTablePtrTy =
-      llvm::FunctionType::get(CGM.Int32Ty, /*isVarArg=*/true)
-          ->getPointerTo()
-          ->getPointerTo();
-  VTableField = Builder.CreateBitCast(VTableField, VTablePtrTy->getPointerTo());
-  VTableAddressPoint = Builder.CreateBitCast(VTableAddressPoint, VTablePtrTy);
-
-  llvm::StoreInst *Store = Builder.CreateStore(VTableAddressPoint, VTableField);
-  TBAAAccessInfo TBAAInfo = CGM.getTBAAVTablePtrAccessInfo(VTablePtrTy);
-  CGM.DecorateInstructionWithTBAA(Store, TBAAInfo);
-  if (CGM.getCodeGenOpts().OptimizationLevel > 0 &&
-      CGM.getCodeGenOpts().StrictVTablePointers)
-    CGM.DecorateInstructionWithInvariantGroup(Store, Vptr.VTableClass);
-}
-
-CodeGenFunction::VPtrsVector
-CodeGenFunction::getVTablePointers(const CXXRecordDecl *VTableClass) {
-  CodeGenFunction::VPtrsVector VPtrsResult;
-  VisitedVirtualBasesSetTy VBases;
-  getVTablePointers(BaseSubobject(VTableClass, CharUnits::Zero()),
-                    /*NearestVBase=*/nullptr,
-                    /*OffsetFromNearestVBase=*/CharUnits::Zero(),
-                    /*BaseIsNonVirtualPrimaryBase=*/false, VTableClass, VBases,
-                    VPtrsResult);
-  return VPtrsResult;
-}
-
-void CodeGenFunction::getVTablePointers(BaseSubobject Base,
-                                        const CXXRecordDecl *NearestVBase,
-                                        CharUnits OffsetFromNearestVBase,
-                                        bool BaseIsNonVirtualPrimaryBase,
-                                        const CXXRecordDecl *VTableClass,
-                                        VisitedVirtualBasesSetTy &VBases,
-                                        VPtrsVector &Vptrs) {
-  // If this base is a non-virtual primary base the address point has already
-  // been set.
-  if (!BaseIsNonVirtualPrimaryBase) {
-    // Initialize the vtable pointer for this base.
-    VPtr Vptr = {Base, NearestVBase, OffsetFromNearestVBase, VTableClass};
-    Vptrs.push_back(Vptr);
-  }
-
-  const CXXRecordDecl *RD = Base.getBase();
-
-  // Traverse bases.
-  for (const auto &I : RD->bases()) {
-    CXXRecordDecl *BaseDecl
-      = cast<CXXRecordDecl>(I.getType()->getAs<RecordType>()->getDecl());
-
-    // Ignore classes without a vtable.
-    if (!BaseDecl->isDynamicClass())
-      continue;
-
-    CharUnits BaseOffset;
-    CharUnits BaseOffsetFromNearestVBase;
-    bool BaseDeclIsNonVirtualPrimaryBase;
-
-    if (I.isVirtual()) {
-      // Check if we've visited this virtual base before.
-      if (!VBases.insert(BaseDecl).second)
-        continue;
-
-      const ASTRecordLayout &Layout =
-        getContext().getASTRecordLayout(VTableClass);
-
-      BaseOffset = Layout.getVBaseClassOffset(BaseDecl);
-      BaseOffsetFromNearestVBase = CharUnits::Zero();
-      BaseDeclIsNonVirtualPrimaryBase = false;
-    } else {
-      const ASTRecordLayout &Layout = getContext().getASTRecordLayout(RD);
-
-      BaseOffset = Base.getBaseOffset() + Layout.getBaseClassOffset(BaseDecl);
-      BaseOffsetFromNearestVBase =
-        OffsetFromNearestVBase + Layout.getBaseClassOffset(BaseDecl);
-      BaseDeclIsNonVirtualPrimaryBase = Layout.getPrimaryBase() == BaseDecl;
-    }
-
-    getVTablePointers(
-        BaseSubobject(BaseDecl, BaseOffset),
-        I.isVirtual() ? BaseDecl : NearestVBase, BaseOffsetFromNearestVBase,
-        BaseDeclIsNonVirtualPrimaryBase, VTableClass, VBases, Vptrs);
-  }
-}
-
-void CodeGenFunction::InitializeVTablePointers(const CXXRecordDecl *RD) {
-  // Ignore classes without a vtable.
-  if (!RD->isDynamicClass())
-    return;
-
-  // Initialize the vtable pointers for this class and all of its bases.
-  if (CGM.getCXXABI().doStructorsInitializeVPtrs(RD))
-    for (const VPtr &Vptr : getVTablePointers(RD))
-      InitializeVTablePointer(Vptr);
-
-  if (RD->getNumVBases())
-    CGM.getCXXABI().initializeHiddenVirtualInheritanceMembers(*this, RD);
-}
-
-llvm::Value *CodeGenFunction::GetVTablePtr(Address This,
-                                           llvm::Type *VTableTy,
-                                           const CXXRecordDecl *RD) {
-  Address VTablePtrSrc = Builder.CreateElementBitCast(This, VTableTy);
-  llvm::Instruction *VTable = Builder.CreateLoad(VTablePtrSrc, "vtable");
-  TBAAAccessInfo TBAAInfo = CGM.getTBAAVTablePtrAccessInfo(VTableTy);
-  CGM.DecorateInstructionWithTBAA(VTable, TBAAInfo);
-
-  if (CGM.getCodeGenOpts().OptimizationLevel > 0 &&
-      CGM.getCodeGenOpts().StrictVTablePointers)
-    CGM.DecorateInstructionWithInvariantGroup(VTable, RD);
-
-  return VTable;
-}
-
-// If a class has a single non-virtual base and does not introduce or override
-// virtual member functions or fields, it will have the same layout as its base.
-// This function returns the least derived such class.
-//
-// Casting an instance of a base class to such a derived class is technically
-// undefined behavior, but it is a relatively common hack for introducing member
-// functions on class instances with specific properties (e.g. llvm::Operator)
-// that works under most compilers and should not have security implications, so
-// we allow it by default. It can be disabled with -fsanitize=cfi-cast-strict.
-static const CXXRecordDecl *
-LeastDerivedClassWithSameLayout(const CXXRecordDecl *RD) {
-  if (!RD->field_empty())
-    return RD;
-
-  if (RD->getNumVBases() != 0)
-    return RD;
-
-  if (RD->getNumBases() != 1)
-    return RD;
-
-  for (const CXXMethodDecl *MD : RD->methods()) {
-    if (MD->isVirtual()) {
-      // Virtual member functions are only ok if they are implicit destructors
-      // because the implicit destructor will have the same semantics as the
-      // base class's destructor if no fields are added.
-      if (isa<CXXDestructorDecl>(MD) && MD->isImplicit())
-        continue;
-      return RD;
-    }
-  }
-
-  return LeastDerivedClassWithSameLayout(
-      RD->bases_begin()->getType()->getAsCXXRecordDecl());
-}
-
-void CodeGenFunction::EmitTypeMetadataCodeForVCall(const CXXRecordDecl *RD,
-                                                   llvm::Value *VTable,
-                                                   SourceLocation Loc) {
-  if (SanOpts.has(SanitizerKind::CFIVCall))
-    EmitVTablePtrCheckForCall(RD, VTable, CodeGenFunction::CFITCK_VCall, Loc);
-  else if (CGM.getCodeGenOpts().WholeProgramVTables &&
-           CGM.HasHiddenLTOVisibility(RD)) {
-    llvm::Metadata *MD =
-        CGM.CreateMetadataIdentifierForType(QualType(RD->getTypeForDecl(), 0));
-    llvm::Value *TypeId =
-        llvm::MetadataAsValue::get(CGM.getLLVMContext(), MD);
-
-    llvm::Value *CastedVTable = Builder.CreateBitCast(VTable, Int8PtrTy);
-    llvm::Value *TypeTest =
-        Builder.CreateCall(CGM.getIntrinsic(llvm::Intrinsic::type_test),
-                           {CastedVTable, TypeId});
-    Builder.CreateCall(CGM.getIntrinsic(llvm::Intrinsic::assume), TypeTest);
-  }
-}
-
-void CodeGenFunction::EmitVTablePtrCheckForCall(const CXXRecordDecl *RD,
-                                                llvm::Value *VTable,
-                                                CFITypeCheckKind TCK,
-                                                SourceLocation Loc) {
-  if (!SanOpts.has(SanitizerKind::CFICastStrict))
-    RD = LeastDerivedClassWithSameLayout(RD);
-
-  EmitVTablePtrCheck(RD, VTable, TCK, Loc);
-}
-
-void CodeGenFunction::EmitVTablePtrCheckForCast(QualType T,
-                                                llvm::Value *Derived,
-                                                bool MayBeNull,
-                                                CFITypeCheckKind TCK,
-                                                SourceLocation Loc) {
-  if (!getLangOpts().CPlusPlus)
-    return;
-
-  auto *ClassTy = T->getAs<RecordType>();
-  if (!ClassTy)
-    return;
-
-  const CXXRecordDecl *ClassDecl = cast<CXXRecordDecl>(ClassTy->getDecl());
-
-  if (!ClassDecl->isCompleteDefinition() || !ClassDecl->isDynamicClass())
-    return;
-
-  if (!SanOpts.has(SanitizerKind::CFICastStrict))
-    ClassDecl = LeastDerivedClassWithSameLayout(ClassDecl);
-
-  llvm::BasicBlock *ContBlock = nullptr;
-
-  if (MayBeNull) {
-    llvm::Value *DerivedNotNull =
-        Builder.CreateIsNotNull(Derived, "cast.nonnull");
-
-    llvm::BasicBlock *CheckBlock = createBasicBlock("cast.check");
-    ContBlock = createBasicBlock("cast.cont");
-
-    Builder.CreateCondBr(DerivedNotNull, CheckBlock, ContBlock);
-
-    EmitBlock(CheckBlock);
-  }
-
-  llvm::Value *VTable;
-  std::tie(VTable, ClassDecl) = CGM.getCXXABI().LoadVTablePtr(
-      *this, Address(Derived, getPointerAlign()), ClassDecl);
-
-  EmitVTablePtrCheck(ClassDecl, VTable, TCK, Loc);
-
-  if (MayBeNull) {
-    Builder.CreateBr(ContBlock);
-    EmitBlock(ContBlock);
-  }
-}
-
-void CodeGenFunction::EmitVTablePtrCheck(const CXXRecordDecl *RD,
-                                         llvm::Value *VTable,
-                                         CFITypeCheckKind TCK,
-                                         SourceLocation Loc) {
-  if (!CGM.getCodeGenOpts().SanitizeCfiCrossDso &&
-      !CGM.HasHiddenLTOVisibility(RD))
-    return;
-
-  SanitizerMask M;
-  llvm::SanitizerStatKind SSK;
-  switch (TCK) {
-  case CFITCK_VCall:
-    M = SanitizerKind::CFIVCall;
-    SSK = llvm::SanStat_CFI_VCall;
-    break;
-  case CFITCK_NVCall:
-    M = SanitizerKind::CFINVCall;
-    SSK = llvm::SanStat_CFI_NVCall;
-    break;
-  case CFITCK_DerivedCast:
-    M = SanitizerKind::CFIDerivedCast;
-    SSK = llvm::SanStat_CFI_DerivedCast;
-    break;
-  case CFITCK_UnrelatedCast:
-    M = SanitizerKind::CFIUnrelatedCast;
-    SSK = llvm::SanStat_CFI_UnrelatedCast;
-    break;
-  case CFITCK_ICall:
-  case CFITCK_NVMFCall:
-  case CFITCK_VMFCall:
-    llvm_unreachable("unexpected sanitizer kind");
-  }
-
-  std::string TypeName = RD->getQualifiedNameAsString();
-  if (getContext().getSanitizerBlacklist().isBlacklistedType(M, TypeName))
-    return;
-
-  SanitizerScope SanScope(this);
-  EmitSanitizerStatReport(SSK);
-
-  llvm::Metadata *MD =
-      CGM.CreateMetadataIdentifierForType(QualType(RD->getTypeForDecl(), 0));
-  llvm::Value *TypeId = llvm::MetadataAsValue::get(getLLVMContext(), MD);
-
-  llvm::Value *CastedVTable = Builder.CreateBitCast(VTable, Int8PtrTy);
-  llvm::Value *TypeTest = Builder.CreateCall(
-      CGM.getIntrinsic(llvm::Intrinsic::type_test), {CastedVTable, TypeId});
-
-  llvm::Constant *StaticData[] = {
-      llvm::ConstantInt::get(Int8Ty, TCK),
-      EmitCheckSourceLocation(Loc),
-      EmitCheckTypeDescriptor(QualType(RD->getTypeForDecl(), 0)),
-  };
-
-  auto CrossDsoTypeId = CGM.CreateCrossDsoCfiTypeId(MD);
-  if (CGM.getCodeGenOpts().SanitizeCfiCrossDso && CrossDsoTypeId) {
-    EmitCfiSlowPathCheck(M, TypeTest, CrossDsoTypeId, CastedVTable, StaticData);
-    return;
-  }
-
-  if (CGM.getCodeGenOpts().SanitizeTrap.has(M)) {
-    EmitTrapCheck(TypeTest);
-    return;
-  }
-
-  llvm::Value *AllVtables = llvm::MetadataAsValue::get(
-      CGM.getLLVMContext(),
-      llvm::MDString::get(CGM.getLLVMContext(), "all-vtables"));
-  llvm::Value *ValidVtable = Builder.CreateCall(
-      CGM.getIntrinsic(llvm::Intrinsic::type_test), {CastedVTable, AllVtables});
-  EmitCheck(std::make_pair(TypeTest, M), SanitizerHandler::CFICheckFail,
-            StaticData, {CastedVTable, ValidVtable});
-}
-
-bool CodeGenFunction::ShouldEmitVTableTypeCheckedLoad(const CXXRecordDecl *RD) {
-  if (!CGM.getCodeGenOpts().WholeProgramVTables ||
-      !SanOpts.has(SanitizerKind::CFIVCall) ||
-      !CGM.getCodeGenOpts().SanitizeTrap.has(SanitizerKind::CFIVCall) ||
-      !CGM.HasHiddenLTOVisibility(RD))
-    return false;
-
-  std::string TypeName = RD->getQualifiedNameAsString();
-  return !getContext().getSanitizerBlacklist().isBlacklistedType(
-      SanitizerKind::CFIVCall, TypeName);
-}
-
-llvm::Value *CodeGenFunction::EmitVTableTypeCheckedLoad(
-    const CXXRecordDecl *RD, llvm::Value *VTable, uint64_t VTableByteOffset) {
-  SanitizerScope SanScope(this);
-
-  EmitSanitizerStatReport(llvm::SanStat_CFI_VCall);
-
-  llvm::Metadata *MD =
-      CGM.CreateMetadataIdentifierForType(QualType(RD->getTypeForDecl(), 0));
-  llvm::Value *TypeId = llvm::MetadataAsValue::get(CGM.getLLVMContext(), MD);
-
-  llvm::Value *CastedVTable = Builder.CreateBitCast(VTable, Int8PtrTy);
-  llvm::Value *CheckedLoad = Builder.CreateCall(
-      CGM.getIntrinsic(llvm::Intrinsic::type_checked_load),
-      {CastedVTable, llvm::ConstantInt::get(Int32Ty, VTableByteOffset),
-       TypeId});
-  llvm::Value *CheckResult = Builder.CreateExtractValue(CheckedLoad, 1);
-
-  EmitCheck(std::make_pair(CheckResult, SanitizerKind::CFIVCall),
-            SanitizerHandler::CFICheckFail, nullptr, nullptr);
-
-  return Builder.CreateBitCast(
-      Builder.CreateExtractValue(CheckedLoad, 0),
-      cast<llvm::PointerType>(VTable->getType())->getElementType());
-}
-
-void CodeGenFunction::EmitForwardingCallToLambda(
-                                      const CXXMethodDecl *callOperator,
-                                      CallArgList &callArgs) {
-  // Get the address of the call operator.
-  const CGFunctionInfo &calleeFnInfo =
-    CGM.getTypes().arrangeCXXMethodDeclaration(callOperator);
-  llvm::Constant *calleePtr =
-    CGM.GetAddrOfFunction(GlobalDecl(callOperator),
-                          CGM.getTypes().GetFunctionType(calleeFnInfo));
-
-  // Prepare the return slot.
-  const FunctionProtoType *FPT =
-    callOperator->getType()->castAs<FunctionProtoType>();
-  QualType resultType = FPT->getReturnType();
-  ReturnValueSlot returnSlot;
-  if (!resultType->isVoidType() &&
-      calleeFnInfo.getReturnInfo().getKind() == ABIArgInfo::Indirect &&
-      !hasScalarEvaluationKind(calleeFnInfo.getReturnType()))
-    returnSlot = ReturnValueSlot(ReturnValue, resultType.isVolatileQualified());
-
-  // We don't need to separately arrange the call arguments because
-  // the call can't be variadic anyway --- it's impossible to forward
-  // variadic arguments.
-
-  // Now emit our call.
-  auto callee = CGCallee::forDirect(calleePtr, GlobalDecl(callOperator));
-  RValue RV = EmitCall(calleeFnInfo, callee, returnSlot, callArgs);
-
-  // If necessary, copy the returned value into the slot.
-  if (!resultType->isVoidType() && returnSlot.isNull()) {
-    if (getLangOpts().ObjCAutoRefCount && resultType->isObjCRetainableType()) {
-      RV = RValue::get(EmitARCRetainAutoreleasedReturnValue(RV.getScalarVal()));
-    }
-    EmitReturnOfRValue(RV, resultType);
-  } else
-    EmitBranchThroughCleanup(ReturnBlock);
-}
-
-void CodeGenFunction::EmitLambdaBlockInvokeBody() {
-  const BlockDecl *BD = BlockInfo->getBlockDecl();
-  const VarDecl *variable = BD->capture_begin()->getVariable();
-  const CXXRecordDecl *Lambda = variable->getType()->getAsCXXRecordDecl();
-  const CXXMethodDecl *CallOp = Lambda->getLambdaCallOperator();
-
-  if (CallOp->isVariadic()) {
-    // FIXME: Making this work correctly is nasty because it requires either
-    // cloning the body of the call operator or making the call operator
-    // forward.
-    CGM.ErrorUnsupported(CurCodeDecl, "lambda conversion to variadic function");
-    return;
-  }
-
-  // Start building arguments for forwarding call
-  CallArgList CallArgs;
-
-  QualType ThisType = getContext().getPointerType(getContext().getRecordType(Lambda));
-  Address ThisPtr = GetAddrOfBlockDecl(variable);
-  CallArgs.add(RValue::get(ThisPtr.getPointer()), ThisType);
-
-  // Add the rest of the parameters.
-  for (auto param : BD->parameters())
-    EmitDelegateCallArg(CallArgs, param, param->getBeginLoc());
-
-  assert(!Lambda->isGenericLambda() &&
-            "generic lambda interconversion to block not implemented");
-  EmitForwardingCallToLambda(CallOp, CallArgs);
-}
-
-void CodeGenFunction::EmitLambdaDelegatingInvokeBody(const CXXMethodDecl *MD) {
-  const CXXRecordDecl *Lambda = MD->getParent();
-
-  // Start building arguments for forwarding call
-  CallArgList CallArgs;
-
-  QualType ThisType = getContext().getPointerType(getContext().getRecordType(Lambda));
-  llvm::Value *ThisPtr = llvm::UndefValue::get(getTypes().ConvertType(ThisType));
-  CallArgs.add(RValue::get(ThisPtr), ThisType);
-
-  // Add the rest of the parameters.
-  for (auto Param : MD->parameters())
-    EmitDelegateCallArg(CallArgs, Param, Param->getBeginLoc());
-
-  const CXXMethodDecl *CallOp = Lambda->getLambdaCallOperator();
-  // For a generic lambda, find the corresponding call operator specialization
-  // to which the call to the static-invoker shall be forwarded.
-  if (Lambda->isGenericLambda()) {
-    assert(MD->isFunctionTemplateSpecialization());
-    const TemplateArgumentList *TAL = MD->getTemplateSpecializationArgs();
-    FunctionTemplateDecl *CallOpTemplate = CallOp->getDescribedFunctionTemplate();
-    void *InsertPos = nullptr;
-    FunctionDecl *CorrespondingCallOpSpecialization =
-        CallOpTemplate->findSpecialization(TAL->asArray(), InsertPos);
-    assert(CorrespondingCallOpSpecialization);
-    CallOp = cast<CXXMethodDecl>(CorrespondingCallOpSpecialization);
-  }
-  EmitForwardingCallToLambda(CallOp, CallArgs);
-}
-
-void CodeGenFunction::EmitLambdaStaticInvokeBody(const CXXMethodDecl *MD) {
-  if (MD->isVariadic()) {
-    // FIXME: Making this work correctly is nasty because it requires either
-    // cloning the body of the call operator or making the call operator forward.
-    CGM.ErrorUnsupported(MD, "lambda conversion to variadic function");
-    return;
-  }
-
-  EmitLambdaDelegatingInvokeBody(MD);
-}