1 files changed, 0 insertions, 5825 deletions

diff --git a/contrib/llvm/tools/clang/lib/CodeGen/CodeGenModule.cpp b/contrib/llvm/tools/clang/lib/CodeGen/CodeGenModule.cpp
deleted file mode 100644
index 1fd4e4cf8b8f..000000000000
--- a/contrib/llvm/tools/clang/lib/CodeGen/CodeGenModule.cpp
+++ /dev/null
@@ -1,5825 +0,0 @@
-//===--- CodeGenModule.cpp - Emit LLVM Code from ASTs for a Module --------===//
-//
-// 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 coordinates the per-module state used while generating code.
-//
-//===----------------------------------------------------------------------===//
-
-#include "CodeGenModule.h"
-#include "CGBlocks.h"
-#include "CGCUDARuntime.h"
-#include "CGCXXABI.h"
-#include "CGCall.h"
-#include "CGDebugInfo.h"
-#include "CGObjCRuntime.h"
-#include "CGOpenCLRuntime.h"
-#include "CGOpenMPRuntime.h"
-#include "CGOpenMPRuntimeNVPTX.h"
-#include "CodeGenFunction.h"
-#include "CodeGenPGO.h"
-#include "ConstantEmitter.h"
-#include "CoverageMappingGen.h"
-#include "TargetInfo.h"
-#include "clang/AST/ASTContext.h"
-#include "clang/AST/CharUnits.h"
-#include "clang/AST/DeclCXX.h"
-#include "clang/AST/DeclObjC.h"
-#include "clang/AST/DeclTemplate.h"
-#include "clang/AST/Mangle.h"
-#include "clang/AST/RecordLayout.h"
-#include "clang/AST/RecursiveASTVisitor.h"
-#include "clang/AST/StmtVisitor.h"
-#include "clang/Basic/Builtins.h"
-#include "clang/Basic/CharInfo.h"
-#include "clang/Basic/CodeGenOptions.h"
-#include "clang/Basic/Diagnostic.h"
-#include "clang/Basic/Module.h"
-#include "clang/Basic/SourceManager.h"
-#include "clang/Basic/TargetInfo.h"
-#include "clang/Basic/Version.h"
-#include "clang/CodeGen/ConstantInitBuilder.h"
-#include "clang/Frontend/FrontendDiagnostic.h"
-#include "llvm/ADT/StringSwitch.h"
-#include "llvm/ADT/Triple.h"
-#include "llvm/Analysis/TargetLibraryInfo.h"
-#include "llvm/IR/CallingConv.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/Intrinsics.h"
-#include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/ProfileSummary.h"
-#include "llvm/ProfileData/InstrProfReader.h"
-#include "llvm/Support/CodeGen.h"
-#include "llvm/Support/ConvertUTF.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/MD5.h"
-#include "llvm/Support/TimeProfiler.h"
-
-using namespace clang;
-using namespace CodeGen;
-
-static llvm::cl::opt<bool> LimitedCoverage(
-    "limited-coverage-experimental", llvm::cl::ZeroOrMore, llvm::cl::Hidden,
-    llvm::cl::desc("Emit limited coverage mapping information (experimental)"),
-    llvm::cl::init(false));
-
-static const char AnnotationSection[] = "llvm.metadata";
-
-static CGCXXABI *createCXXABI(CodeGenModule &CGM) {
-  switch (CGM.getTarget().getCXXABI().getKind()) {
-  case TargetCXXABI::GenericAArch64:
-  case TargetCXXABI::GenericARM:
-  case TargetCXXABI::iOS:
-  case TargetCXXABI::iOS64:
-  case TargetCXXABI::WatchOS:
-  case TargetCXXABI::GenericMIPS:
-  case TargetCXXABI::GenericItanium:
-  case TargetCXXABI::WebAssembly:
-    return CreateItaniumCXXABI(CGM);
-  case TargetCXXABI::Microsoft:
-    return CreateMicrosoftCXXABI(CGM);
-  }
-
-  llvm_unreachable("invalid C++ ABI kind");
-}
-
-CodeGenModule::CodeGenModule(ASTContext &C, const HeaderSearchOptions &HSO,
-                             const PreprocessorOptions &PPO,
-                             const CodeGenOptions &CGO, llvm::Module &M,
-                             DiagnosticsEngine &diags,
-                             CoverageSourceInfo *CoverageInfo)
-    : Context(C), LangOpts(C.getLangOpts()), HeaderSearchOpts(HSO),
-      PreprocessorOpts(PPO), CodeGenOpts(CGO), TheModule(M), Diags(diags),
-      Target(C.getTargetInfo()), ABI(createCXXABI(*this)),
-      VMContext(M.getContext()), Types(*this), VTables(*this),
-      SanitizerMD(new SanitizerMetadata(*this)) {
-
-  // Initialize the type cache.
-  llvm::LLVMContext &LLVMContext = M.getContext();
-  VoidTy = llvm::Type::getVoidTy(LLVMContext);
-  Int8Ty = llvm::Type::getInt8Ty(LLVMContext);
-  Int16Ty = llvm::Type::getInt16Ty(LLVMContext);
-  Int32Ty = llvm::Type::getInt32Ty(LLVMContext);
-  Int64Ty = llvm::Type::getInt64Ty(LLVMContext);
-  HalfTy = llvm::Type::getHalfTy(LLVMContext);
-  FloatTy = llvm::Type::getFloatTy(LLVMContext);
-  DoubleTy = llvm::Type::getDoubleTy(LLVMContext);
-  PointerWidthInBits = C.getTargetInfo().getPointerWidth(0);
-  PointerAlignInBytes =
-    C.toCharUnitsFromBits(C.getTargetInfo().getPointerAlign(0)).getQuantity();
-  SizeSizeInBytes =
-    C.toCharUnitsFromBits(C.getTargetInfo().getMaxPointerWidth()).getQuantity();
-  IntAlignInBytes =
-    C.toCharUnitsFromBits(C.getTargetInfo().getIntAlign()).getQuantity();
-  IntTy = llvm::IntegerType::get(LLVMContext, C.getTargetInfo().getIntWidth());
-  IntPtrTy = llvm::IntegerType::get(LLVMContext,
-    C.getTargetInfo().getMaxPointerWidth());
-  Int8PtrTy = Int8Ty->getPointerTo(0);
-  Int8PtrPtrTy = Int8PtrTy->getPointerTo(0);
-  AllocaInt8PtrTy = Int8Ty->getPointerTo(
-      M.getDataLayout().getAllocaAddrSpace());
-  ASTAllocaAddressSpace = getTargetCodeGenInfo().getASTAllocaAddressSpace();
-
-  RuntimeCC = getTargetCodeGenInfo().getABIInfo().getRuntimeCC();
-
-  if (LangOpts.ObjC)
-    createObjCRuntime();
-  if (LangOpts.OpenCL)
-    createOpenCLRuntime();
-  if (LangOpts.OpenMP)
-    createOpenMPRuntime();
-  if (LangOpts.CUDA)
-    createCUDARuntime();
-
-  // Enable TBAA unless it's suppressed. ThreadSanitizer needs TBAA even at O0.
-  if (LangOpts.Sanitize.has(SanitizerKind::Thread) ||
-      (!CodeGenOpts.RelaxedAliasing && CodeGenOpts.OptimizationLevel > 0))
-    TBAA.reset(new CodeGenTBAA(Context, TheModule, CodeGenOpts, getLangOpts(),
-                               getCXXABI().getMangleContext()));
-
-  // If debug info or coverage generation is enabled, create the CGDebugInfo
-  // object.
-  if (CodeGenOpts.getDebugInfo() != codegenoptions::NoDebugInfo ||
-      CodeGenOpts.EmitGcovArcs || CodeGenOpts.EmitGcovNotes)
-    DebugInfo.reset(new CGDebugInfo(*this));
-
-  Block.GlobalUniqueCount = 0;
-
-  if (C.getLangOpts().ObjC)
-    ObjCData.reset(new ObjCEntrypoints());
-
-  if (CodeGenOpts.hasProfileClangUse()) {
-    auto ReaderOrErr = llvm::IndexedInstrProfReader::create(
-        CodeGenOpts.ProfileInstrumentUsePath, CodeGenOpts.ProfileRemappingFile);
-    if (auto E = ReaderOrErr.takeError()) {
-      unsigned DiagID = Diags.getCustomDiagID(DiagnosticsEngine::Error,
-                                              "Could not read profile %0: %1");
-      llvm::handleAllErrors(std::move(E), [&](const llvm::ErrorInfoBase &EI) {
-        getDiags().Report(DiagID) << CodeGenOpts.ProfileInstrumentUsePath
-                                  << EI.message();
-      });
-    } else
-      PGOReader = std::move(ReaderOrErr.get());
-  }
-
-  // If coverage mapping generation is enabled, create the
-  // CoverageMappingModuleGen object.
-  if (CodeGenOpts.CoverageMapping)
-    CoverageMapping.reset(new CoverageMappingModuleGen(*this, *CoverageInfo));
-}
-
-CodeGenModule::~CodeGenModule() {}
-
-void CodeGenModule::createObjCRuntime() {
-  // This is just isGNUFamily(), but we want to force implementors of
-  // new ABIs to decide how best to do this.
-  switch (LangOpts.ObjCRuntime.getKind()) {
-  case ObjCRuntime::GNUstep:
-  case ObjCRuntime::GCC:
-  case ObjCRuntime::ObjFW:
-    ObjCRuntime.reset(CreateGNUObjCRuntime(*this));
-    return;
-
-  case ObjCRuntime::FragileMacOSX:
-  case ObjCRuntime::MacOSX:
-  case ObjCRuntime::iOS:
-  case ObjCRuntime::WatchOS:
-    ObjCRuntime.reset(CreateMacObjCRuntime(*this));
-    return;
-  }
-  llvm_unreachable("bad runtime kind");
-}
-
-void CodeGenModule::createOpenCLRuntime() {
-  OpenCLRuntime.reset(new CGOpenCLRuntime(*this));
-}
-
-void CodeGenModule::createOpenMPRuntime() {
-  // Select a specialized code generation class based on the target, if any.
-  // If it does not exist use the default implementation.
-  switch (getTriple().getArch()) {
-  case llvm::Triple::nvptx:
-  case llvm::Triple::nvptx64:
-    assert(getLangOpts().OpenMPIsDevice &&
-           "OpenMP NVPTX is only prepared to deal with device code.");
-    OpenMPRuntime.reset(new CGOpenMPRuntimeNVPTX(*this));
-    break;
-  default:
-    if (LangOpts.OpenMPSimd)
-      OpenMPRuntime.reset(new CGOpenMPSIMDRuntime(*this));
-    else
-      OpenMPRuntime.reset(new CGOpenMPRuntime(*this));
-    break;
-  }
-}
-
-void CodeGenModule::createCUDARuntime() {
-  CUDARuntime.reset(CreateNVCUDARuntime(*this));
-}
-
-void CodeGenModule::addReplacement(StringRef Name, llvm::Constant *C) {
-  Replacements[Name] = C;
-}
-
-void CodeGenModule::applyReplacements() {
-  for (auto &I : Replacements) {
-    StringRef MangledName = I.first();
-    llvm::Constant *Replacement = I.second;
-    llvm::GlobalValue *Entry = GetGlobalValue(MangledName);
-    if (!Entry)
-      continue;
-    auto *OldF = cast<llvm::Function>(Entry);
-    auto *NewF = dyn_cast<llvm::Function>(Replacement);
-    if (!NewF) {
-      if (auto *Alias = dyn_cast<llvm::GlobalAlias>(Replacement)) {
-        NewF = dyn_cast<llvm::Function>(Alias->getAliasee());
-      } else {
-        auto *CE = cast<llvm::ConstantExpr>(Replacement);
-        assert(CE->getOpcode() == llvm::Instruction::BitCast ||
-               CE->getOpcode() == llvm::Instruction::GetElementPtr);
-        NewF = dyn_cast<llvm::Function>(CE->getOperand(0));
-      }
-    }
-
-    // Replace old with new, but keep the old order.
-    OldF->replaceAllUsesWith(Replacement);
-    if (NewF) {
-      NewF->removeFromParent();
-      OldF->getParent()->getFunctionList().insertAfter(OldF->getIterator(),
-                                                       NewF);
-    }
-    OldF->eraseFromParent();
-  }
-}
-
-void CodeGenModule::addGlobalValReplacement(llvm::GlobalValue *GV, llvm::Constant *C) {
-  GlobalValReplacements.push_back(std::make_pair(GV, C));
-}
-
-void CodeGenModule::applyGlobalValReplacements() {
-  for (auto &I : GlobalValReplacements) {
-    llvm::GlobalValue *GV = I.first;
-    llvm::Constant *C = I.second;
-
-    GV->replaceAllUsesWith(C);
-    GV->eraseFromParent();
-  }
-}
-
-// This is only used in aliases that we created and we know they have a
-// linear structure.
-static const llvm::GlobalObject *getAliasedGlobal(
-    const llvm::GlobalIndirectSymbol &GIS) {
-  llvm::SmallPtrSet<const llvm::GlobalIndirectSymbol*, 4> Visited;
-  const llvm::Constant *C = &GIS;
-  for (;;) {
-    C = C->stripPointerCasts();
-    if (auto *GO = dyn_cast<llvm::GlobalObject>(C))
-      return GO;
-    // stripPointerCasts will not walk over weak aliases.
-    auto *GIS2 = dyn_cast<llvm::GlobalIndirectSymbol>(C);
-    if (!GIS2)
-      return nullptr;
-    if (!Visited.insert(GIS2).second)
-      return nullptr;
-    C = GIS2->getIndirectSymbol();
-  }
-}
-
-void CodeGenModule::checkAliases() {
-  // Check if the constructed aliases are well formed. It is really unfortunate
-  // that we have to do this in CodeGen, but we only construct mangled names
-  // and aliases during codegen.
-  bool Error = false;
-  DiagnosticsEngine &Diags = getDiags();
-  for (const GlobalDecl &GD : Aliases) {
-    const auto *D = cast<ValueDecl>(GD.getDecl());
-    SourceLocation Location;
-    bool IsIFunc = D->hasAttr<IFuncAttr>();
-    if (const Attr *A = D->getDefiningAttr())
-      Location = A->getLocation();
-    else
-      llvm_unreachable("Not an alias or ifunc?");
-    StringRef MangledName = getMangledName(GD);
-    llvm::GlobalValue *Entry = GetGlobalValue(MangledName);
-    auto *Alias  = cast<llvm::GlobalIndirectSymbol>(Entry);
-    const llvm::GlobalValue *GV = getAliasedGlobal(*Alias);
-    if (!GV) {
-      Error = true;
-      Diags.Report(Location, diag::err_cyclic_alias) << IsIFunc;
-    } else if (GV->isDeclaration()) {
-      Error = true;
-      Diags.Report(Location, diag::err_alias_to_undefined)
-          << IsIFunc << IsIFunc;
-    } else if (IsIFunc) {
-      // Check resolver function type.
-      llvm::FunctionType *FTy = dyn_cast<llvm::FunctionType>(
-          GV->getType()->getPointerElementType());
-      assert(FTy);
-      if (!FTy->getReturnType()->isPointerTy())
-        Diags.Report(Location, diag::err_ifunc_resolver_return);
-    }
-
-    llvm::Constant *Aliasee = Alias->getIndirectSymbol();
-    llvm::GlobalValue *AliaseeGV;
-    if (auto CE = dyn_cast<llvm::ConstantExpr>(Aliasee))
-      AliaseeGV = cast<llvm::GlobalValue>(CE->getOperand(0));
-    else
-      AliaseeGV = cast<llvm::GlobalValue>(Aliasee);
-
-    if (const SectionAttr *SA = D->getAttr<SectionAttr>()) {
-      StringRef AliasSection = SA->getName();
-      if (AliasSection != AliaseeGV->getSection())
-        Diags.Report(SA->getLocation(), diag::warn_alias_with_section)
-            << AliasSection << IsIFunc << IsIFunc;
-    }
-
-    // We have to handle alias to weak aliases in here. LLVM itself disallows
-    // this since the object semantics would not match the IL one. For
-    // compatibility with gcc we implement it by just pointing the alias
-    // to its aliasee's aliasee. We also warn, since the user is probably
-    // expecting the link to be weak.
-    if (auto GA = dyn_cast<llvm::GlobalIndirectSymbol>(AliaseeGV)) {
-      if (GA->isInterposable()) {
-        Diags.Report(Location, diag::warn_alias_to_weak_alias)
-            << GV->getName() << GA->getName() << IsIFunc;
-        Aliasee = llvm::ConstantExpr::getPointerBitCastOrAddrSpaceCast(
-            GA->getIndirectSymbol(), Alias->getType());
-        Alias->setIndirectSymbol(Aliasee);
-      }
-    }
-  }
-  if (!Error)
-    return;
-
-  for (const GlobalDecl &GD : Aliases) {
-    StringRef MangledName = getMangledName(GD);
-    llvm::GlobalValue *Entry = GetGlobalValue(MangledName);
-    auto *Alias = dyn_cast<llvm::GlobalIndirectSymbol>(Entry);
-    Alias->replaceAllUsesWith(llvm::UndefValue::get(Alias->getType()));
-    Alias->eraseFromParent();
-  }
-}
-
-void CodeGenModule::clear() {
-  DeferredDeclsToEmit.clear();
-  if (OpenMPRuntime)
-    OpenMPRuntime->clear();
-}
-
-void InstrProfStats::reportDiagnostics(DiagnosticsEngine &Diags,
-                                       StringRef MainFile) {
-  if (!hasDiagnostics())
-    return;
-  if (VisitedInMainFile > 0 && VisitedInMainFile == MissingInMainFile) {
-    if (MainFile.empty())
-      MainFile = "<stdin>";
-    Diags.Report(diag::warn_profile_data_unprofiled) << MainFile;
-  } else {
-    if (Mismatched > 0)
-      Diags.Report(diag::warn_profile_data_out_of_date) << Visited << Mismatched;
-
-    if (Missing > 0)
-      Diags.Report(diag::warn_profile_data_missing) << Visited << Missing;
-  }
-}
-
-void CodeGenModule::Release() {
-  EmitDeferred();
-  EmitVTablesOpportunistically();
-  applyGlobalValReplacements();
-  applyReplacements();
-  checkAliases();
-  emitMultiVersionFunctions();
-  EmitCXXGlobalInitFunc();
-  EmitCXXGlobalDtorFunc();
-  registerGlobalDtorsWithAtExit();
-  EmitCXXThreadLocalInitFunc();
-  if (ObjCRuntime)
-    if (llvm::Function *ObjCInitFunction = ObjCRuntime->ModuleInitFunction())
-      AddGlobalCtor(ObjCInitFunction);
-  if (Context.getLangOpts().CUDA && !Context.getLangOpts().CUDAIsDevice &&
-      CUDARuntime) {
-    if (llvm::Function *CudaCtorFunction =
-            CUDARuntime->makeModuleCtorFunction())
-      AddGlobalCtor(CudaCtorFunction);
-  }
-  if (OpenMPRuntime) {
-    if (llvm::Function *OpenMPRequiresDirectiveRegFun =
-            OpenMPRuntime->emitRequiresDirectiveRegFun()) {
-      AddGlobalCtor(OpenMPRequiresDirectiveRegFun, 0);
-    }
-    if (llvm::Function *OpenMPRegistrationFunction =
-            OpenMPRuntime->emitRegistrationFunction()) {
-      auto ComdatKey = OpenMPRegistrationFunction->hasComdat() ?
-        OpenMPRegistrationFunction : nullptr;
-      AddGlobalCtor(OpenMPRegistrationFunction, 0, ComdatKey);
-    }
-    OpenMPRuntime->clear();
-  }
-  if (PGOReader) {
-    getModule().setProfileSummary(
-        PGOReader->getSummary(/* UseCS */ false).getMD(VMContext),
-        llvm::ProfileSummary::PSK_Instr);
-    if (PGOStats.hasDiagnostics())
-      PGOStats.reportDiagnostics(getDiags(), getCodeGenOpts().MainFileName);
-  }
-  EmitCtorList(GlobalCtors, "llvm.global_ctors");
-  EmitCtorList(GlobalDtors, "llvm.global_dtors");
-  EmitGlobalAnnotations();
-  EmitStaticExternCAliases();
-  EmitDeferredUnusedCoverageMappings();
-  if (CoverageMapping)
-    CoverageMapping->emit();
-  if (CodeGenOpts.SanitizeCfiCrossDso) {
-    CodeGenFunction(*this).EmitCfiCheckFail();
-    CodeGenFunction(*this).EmitCfiCheckStub();
-  }
-  emitAtAvailableLinkGuard();
-  emitLLVMUsed();
-  if (SanStats)
-    SanStats->finish();
-
-  if (CodeGenOpts.Autolink &&
-      (Context.getLangOpts().Modules || !LinkerOptionsMetadata.empty())) {
-    EmitModuleLinkOptions();
-  }
-
-  // On ELF we pass the dependent library specifiers directly to the linker
-  // without manipulating them. This is in contrast to other platforms where
-  // they are mapped to a specific linker option by the compiler. This
-  // difference is a result of the greater variety of ELF linkers and the fact
-  // that ELF linkers tend to handle libraries in a more complicated fashion
-  // than on other platforms. This forces us to defer handling the dependent
-  // libs to the linker.
-  //
-  // CUDA/HIP device and host libraries are different. Currently there is no
-  // way to differentiate dependent libraries for host or device. Existing
-  // usage of #pragma comment(lib, *) is intended for host libraries on
-  // Windows. Therefore emit llvm.dependent-libraries only for host.
-  if (!ELFDependentLibraries.empty() && !Context.getLangOpts().CUDAIsDevice) {
-    auto *NMD = getModule().getOrInsertNamedMetadata("llvm.dependent-libraries");
-    for (auto *MD : ELFDependentLibraries)
-      NMD->addOperand(MD);
-  }
-
-  // Record mregparm value now so it is visible through rest of codegen.
-  if (Context.getTargetInfo().getTriple().getArch() == llvm::Triple::x86)
-    getModule().addModuleFlag(llvm::Module::Error, "NumRegisterParameters",
-                              CodeGenOpts.NumRegisterParameters);
-
-  if (CodeGenOpts.DwarfVersion) {
-    // We actually want the latest version when there are conflicts.
-    // We can change from Warning to Latest if such mode is supported.
-    getModule().addModuleFlag(llvm::Module::Warning, "Dwarf Version",
-                              CodeGenOpts.DwarfVersion);
-  }
-  if (CodeGenOpts.EmitCodeView) {
-    // Indicate that we want CodeView in the metadata.
-    getModule().addModuleFlag(llvm::Module::Warning, "CodeView", 1);
-  }
-  if (CodeGenOpts.CodeViewGHash) {
-    getModule().addModuleFlag(llvm::Module::Warning, "CodeViewGHash", 1);
-  }
-  if (CodeGenOpts.ControlFlowGuard) {
-    // We want function ID tables for Control Flow Guard.
-    getModule().addModuleFlag(llvm::Module::Warning, "cfguardtable", 1);
-  }
-  if (CodeGenOpts.OptimizationLevel > 0 && CodeGenOpts.StrictVTablePointers) {
-    // We don't support LTO with 2 with different StrictVTablePointers
-    // FIXME: we could support it by stripping all the information introduced
-    // by StrictVTablePointers.
-
-    getModule().addModuleFlag(llvm::Module::Error, "StrictVTablePointers",1);
-
-    llvm::Metadata *Ops[2] = {
-              llvm::MDString::get(VMContext, "StrictVTablePointers"),
-              llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
-                  llvm::Type::getInt32Ty(VMContext), 1))};
-
-    getModule().addModuleFlag(llvm::Module::Require,
-                              "StrictVTablePointersRequirement",
-                              llvm::MDNode::get(VMContext, Ops));
-  }
-  if (DebugInfo)
-    // We support a single version in the linked module. The LLVM
-    // parser will drop debug info with a different version number
-    // (and warn about it, too).
-    getModule().addModuleFlag(llvm::Module::Warning, "Debug Info Version",
-                              llvm::DEBUG_METADATA_VERSION);
-
-  // We need to record the widths of enums and wchar_t, so that we can generate
-  // the correct build attributes in the ARM backend. wchar_size is also used by
-  // TargetLibraryInfo.
-  uint64_t WCharWidth =
-      Context.getTypeSizeInChars(Context.getWideCharType()).getQuantity();
-  getModule().addModuleFlag(llvm::Module::Error, "wchar_size", WCharWidth);
-
-  llvm::Triple::ArchType Arch = Context.getTargetInfo().getTriple().getArch();
-  if (   Arch == llvm::Triple::arm
-      || Arch == llvm::Triple::armeb
-      || Arch == llvm::Triple::thumb
-      || Arch == llvm::Triple::thumbeb) {
-    // The minimum width of an enum in bytes
-    uint64_t EnumWidth = Context.getLangOpts().ShortEnums ? 1 : 4;
-    getModule().addModuleFlag(llvm::Module::Error, "min_enum_size", EnumWidth);
-  }
-
-  if (CodeGenOpts.SanitizeCfiCrossDso) {
-    // Indicate that we want cross-DSO control flow integrity checks.
-    getModule().addModuleFlag(llvm::Module::Override, "Cross-DSO CFI", 1);
-  }
-
-  if (CodeGenOpts.CFProtectionReturn &&
-      Target.checkCFProtectionReturnSupported(getDiags())) {
-    // Indicate that we want to instrument return control flow protection.
-    getModule().addModuleFlag(llvm::Module::Override, "cf-protection-return",
-                              1);
-  }
-
-  if (CodeGenOpts.CFProtectionBranch &&
-      Target.checkCFProtectionBranchSupported(getDiags())) {
-    // Indicate that we want to instrument branch control flow protection.
-    getModule().addModuleFlag(llvm::Module::Override, "cf-protection-branch",
-                              1);
-  }
-
-  if (LangOpts.CUDAIsDevice && getTriple().isNVPTX()) {
-    // Indicate whether __nvvm_reflect should be configured to flush denormal
-    // floating point values to 0.  (This corresponds to its "__CUDA_FTZ"
-    // property.)
-    getModule().addModuleFlag(llvm::Module::Override, "nvvm-reflect-ftz",
-                              CodeGenOpts.FlushDenorm ? 1 : 0);
-  }
-
-  // Emit OpenCL specific module metadata: OpenCL/SPIR version.
-  if (LangOpts.OpenCL) {
-    EmitOpenCLMetadata();
-    // Emit SPIR version.
-    if (getTriple().isSPIR()) {
-      // SPIR v2.0 s2.12 - The SPIR version used by the module is stored in the
-      // opencl.spir.version named metadata.
-      // C++ is backwards compatible with OpenCL v2.0.
-      auto Version = LangOpts.OpenCLCPlusPlus ? 200 : LangOpts.OpenCLVersion;
-      llvm::Metadata *SPIRVerElts[] = {
-          llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
-              Int32Ty, Version / 100)),
-          llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
-              Int32Ty, (Version / 100 > 1) ? 0 : 2))};
-      llvm::NamedMDNode *SPIRVerMD =
-          TheModule.getOrInsertNamedMetadata("opencl.spir.version");
-      llvm::LLVMContext &Ctx = TheModule.getContext();
-      SPIRVerMD->addOperand(llvm::MDNode::get(Ctx, SPIRVerElts));
-    }
-  }
-
-  if (uint32_t PLevel = Context.getLangOpts().PICLevel) {
-    assert(PLevel < 3 && "Invalid PIC Level");
-    getModule().setPICLevel(static_cast<llvm::PICLevel::Level>(PLevel));
-    if (Context.getLangOpts().PIE)
-      getModule().setPIELevel(static_cast<llvm::PIELevel::Level>(PLevel));
-  }
-
-  if (getCodeGenOpts().CodeModel.size() > 0) {
-    unsigned CM = llvm::StringSwitch<unsigned>(getCodeGenOpts().CodeModel)
-                  .Case("tiny", llvm::CodeModel::Tiny)
-                  .Case("small", llvm::CodeModel::Small)
-                  .Case("kernel", llvm::CodeModel::Kernel)
-                  .Case("medium", llvm::CodeModel::Medium)
-                  .Case("large", llvm::CodeModel::Large)
-                  .Default(~0u);
-    if (CM != ~0u) {
-      llvm::CodeModel::Model codeModel = static_cast<llvm::CodeModel::Model>(CM);
-      getModule().setCodeModel(codeModel);
-    }
-  }
-
-  if (CodeGenOpts.NoPLT)
-    getModule().setRtLibUseGOT();
-
-  SimplifyPersonality();
-
-  if (getCodeGenOpts().EmitDeclMetadata)
-    EmitDeclMetadata();
-
-  if (getCodeGenOpts().EmitGcovArcs || getCodeGenOpts().EmitGcovNotes)
-    EmitCoverageFile();
-
-  if (DebugInfo)
-    DebugInfo->finalize();
-
-  if (getCodeGenOpts().EmitVersionIdentMetadata)
-    EmitVersionIdentMetadata();
-
-  if (!getCodeGenOpts().RecordCommandLine.empty())
-    EmitCommandLineMetadata();
-
-  EmitTargetMetadata();
-}
-
-void CodeGenModule::EmitOpenCLMetadata() {
-  // SPIR v2.0 s2.13 - The OpenCL version used by the module is stored in the
-  // opencl.ocl.version named metadata node.
-  // C++ is backwards compatible with OpenCL v2.0.
-  // FIXME: We might need to add CXX version at some point too?
-  auto Version = LangOpts.OpenCLCPlusPlus ? 200 : LangOpts.OpenCLVersion;
-  llvm::Metadata *OCLVerElts[] = {
-      llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
-          Int32Ty, Version / 100)),
-      llvm::ConstantAsMetadata::get(llvm::ConstantInt::get(
-          Int32Ty, (Version % 100) / 10))};
-  llvm::NamedMDNode *OCLVerMD =
-      TheModule.getOrInsertNamedMetadata("opencl.ocl.version");
-  llvm::LLVMContext &Ctx = TheModule.getContext();
-  OCLVerMD->addOperand(llvm::MDNode::get(Ctx, OCLVerElts));
-}
-
-void CodeGenModule::UpdateCompletedType(const TagDecl *TD) {
-  // Make sure that this type is translated.
-  Types.UpdateCompletedType(TD);
-}
-
-void CodeGenModule::RefreshTypeCacheForClass(const CXXRecordDecl *RD) {
-  // Make sure that this type is translated.
-  Types.RefreshTypeCacheForClass(RD);
-}
-
-llvm::MDNode *CodeGenModule::getTBAATypeInfo(QualType QTy) {
-  if (!TBAA)
-    return nullptr;
-  return TBAA->getTypeInfo(QTy);
-}
-
-TBAAAccessInfo CodeGenModule::getTBAAAccessInfo(QualType AccessType) {
-  if (!TBAA)
-    return TBAAAccessInfo();
-  return TBAA->getAccessInfo(AccessType);
-}
-
-TBAAAccessInfo
-CodeGenModule::getTBAAVTablePtrAccessInfo(llvm::Type *VTablePtrType) {
-  if (!TBAA)
-    return TBAAAccessInfo();
-  return TBAA->getVTablePtrAccessInfo(VTablePtrType);
-}
-
-llvm::MDNode *CodeGenModule::getTBAAStructInfo(QualType QTy) {
-  if (!TBAA)
-    return nullptr;
-  return TBAA->getTBAAStructInfo(QTy);
-}
-
-llvm::MDNode *CodeGenModule::getTBAABaseTypeInfo(QualType QTy) {
-  if (!TBAA)
-    return nullptr;
-  return TBAA->getBaseTypeInfo(QTy);
-}
-
-llvm::MDNode *CodeGenModule::getTBAAAccessTagInfo(TBAAAccessInfo Info) {
-  if (!TBAA)
-    return nullptr;
-  return TBAA->getAccessTagInfo(Info);
-}
-
-TBAAAccessInfo CodeGenModule::mergeTBAAInfoForCast(TBAAAccessInfo SourceInfo,
-                                                   TBAAAccessInfo TargetInfo) {
-  if (!TBAA)
-    return TBAAAccessInfo();
-  return TBAA->mergeTBAAInfoForCast(SourceInfo, TargetInfo);
-}
-
-TBAAAccessInfo
-CodeGenModule::mergeTBAAInfoForConditionalOperator(TBAAAccessInfo InfoA,
-                                                   TBAAAccessInfo InfoB) {
-  if (!TBAA)
-    return TBAAAccessInfo();
-  return TBAA->mergeTBAAInfoForConditionalOperator(InfoA, InfoB);
-}
-
-TBAAAccessInfo
-CodeGenModule::mergeTBAAInfoForMemoryTransfer(TBAAAccessInfo DestInfo,
-                                              TBAAAccessInfo SrcInfo) {
-  if (!TBAA)
-    return TBAAAccessInfo();
-  return TBAA->mergeTBAAInfoForConditionalOperator(DestInfo, SrcInfo);
-}
-
-void CodeGenModule::DecorateInstructionWithTBAA(llvm::Instruction *Inst,
-                                                TBAAAccessInfo TBAAInfo) {
-  if (llvm::MDNode *Tag = getTBAAAccessTagInfo(TBAAInfo))
-    Inst->setMetadata(llvm::LLVMContext::MD_tbaa, Tag);
-}
-
-void CodeGenModule::DecorateInstructionWithInvariantGroup(
-    llvm::Instruction *I, const CXXRecordDecl *RD) {
-  I->setMetadata(llvm::LLVMContext::MD_invariant_group,
-                 llvm::MDNode::get(getLLVMContext(), {}));
-}
-
-void CodeGenModule::Error(SourceLocation loc, StringRef message) {
-  unsigned diagID = getDiags().getCustomDiagID(DiagnosticsEngine::Error, "%0");
-  getDiags().Report(Context.getFullLoc(loc), diagID) << message;
-}
-
-/// ErrorUnsupported - Print out an error that codegen doesn't support the
-/// specified stmt yet.
-void CodeGenModule::ErrorUnsupported(const Stmt *S, const char *Type) {
-  unsigned DiagID = getDiags().getCustomDiagID(DiagnosticsEngine::Error,
-                                               "cannot compile this %0 yet");
-  std::string Msg = Type;
-  getDiags().Report(Context.getFullLoc(S->getBeginLoc()), DiagID)
-      << Msg << S->getSourceRange();
-}
-
-/// ErrorUnsupported - Print out an error that codegen doesn't support the
-/// specified decl yet.
-void CodeGenModule::ErrorUnsupported(const Decl *D, const char *Type) {
-  unsigned DiagID = getDiags().getCustomDiagID(DiagnosticsEngine::Error,
-                                               "cannot compile this %0 yet");
-  std::string Msg = Type;
-  getDiags().Report(Context.getFullLoc(D->getLocation()), DiagID) << Msg;
-}
-
-llvm::ConstantInt *CodeGenModule::getSize(CharUnits size) {
-  return llvm::ConstantInt::get(SizeTy, size.getQuantity());
-}
-
-void CodeGenModule::setGlobalVisibility(llvm::GlobalValue *GV,
-                                        const NamedDecl *D) const {
-  if (GV->hasDLLImportStorageClass())
-    return;
-  // Internal definitions always have default visibility.
-  if (GV->hasLocalLinkage()) {
-    GV->setVisibility(llvm::GlobalValue::DefaultVisibility);
-    return;
-  }
-  if (!D)
-    return;
-  // Set visibility for definitions, and for declarations if requested globally
-  // or set explicitly.
-  LinkageInfo LV = D->getLinkageAndVisibility();
-  if (LV.isVisibilityExplicit() || getLangOpts().SetVisibilityForExternDecls ||
-      !GV->isDeclarationForLinker())
-    GV->setVisibility(GetLLVMVisibility(LV.getVisibility()));
-}
-
-static bool shouldAssumeDSOLocal(const CodeGenModule &CGM,
-                                 llvm::GlobalValue *GV) {
-  if (GV->hasLocalLinkage())
-    return true;
-
-  if (!GV->hasDefaultVisibility() && !GV->hasExternalWeakLinkage())
-    return true;
-
-  // DLLImport explicitly marks the GV as external.
-  if (GV->hasDLLImportStorageClass())
-    return false;
-
-  const llvm::Triple &TT = CGM.getTriple();
-  if (TT.isWindowsGNUEnvironment()) {
-    // In MinGW, variables without DLLImport can still be automatically
-    // imported from a DLL by the linker; don't mark variables that
-    // potentially could come from another DLL as DSO local.
-    if (GV->isDeclarationForLinker() && isa<llvm::GlobalVariable>(GV) &&
-        !GV->isThreadLocal())
-      return false;
-  }
-
-  // On COFF, don't mark 'extern_weak' symbols as DSO local. If these symbols
-  // remain unresolved in the link, they can be resolved to zero, which is
-  // outside the current DSO.
-  if (TT.isOSBinFormatCOFF() && GV->hasExternalWeakLinkage())
-    return false;
-
-  // Every other GV is local on COFF.
-  // Make an exception for windows OS in the triple: Some firmware builds use
-  // *-win32-macho triples. This (accidentally?) produced windows relocations
-  // without GOT tables in older clang versions; Keep this behaviour.
-  // FIXME: even thread local variables?
-  if (TT.isOSBinFormatCOFF() || (TT.isOSWindows() && TT.isOSBinFormatMachO()))
-    return true;
-
-  // Only handle COFF and ELF for now.
-  if (!TT.isOSBinFormatELF())
-    return false;
-
-  // If this is not an executable, don't assume anything is local.
-  const auto &CGOpts = CGM.getCodeGenOpts();
-  llvm::Reloc::Model RM = CGOpts.RelocationModel;
-  const auto &LOpts = CGM.getLangOpts();
-  if (RM != llvm::Reloc::Static && !LOpts.PIE && !LOpts.OpenMPIsDevice)
-    return false;
-
-  // A definition cannot be preempted from an executable.
-  if (!GV->isDeclarationForLinker())
-    return true;
-
-  // Most PIC code sequences that assume that a symbol is local cannot produce a
-  // 0 if it turns out the symbol is undefined. While this is ABI and relocation
-  // depended, it seems worth it to handle it here.
-  if (RM == llvm::Reloc::PIC_ && GV->hasExternalWeakLinkage())
-    return false;
-
-  // PPC has no copy relocations and cannot use a plt entry as a symbol address.
-  llvm::Triple::ArchType Arch = TT.getArch();
-  if (Arch == llvm::Triple::ppc || Arch == llvm::Triple::ppc64 ||
-      Arch == llvm::Triple::ppc64le)
-    return false;
-
-  // If we can use copy relocations we can assume it is local.
-  if (auto *Var = dyn_cast<llvm::GlobalVariable>(GV))
-    if (!Var->isThreadLocal() &&
-        (RM == llvm::Reloc::Static || CGOpts.PIECopyRelocations))
-      return true;
-
-  // If we can use a plt entry as the symbol address we can assume it
-  // is local.
-  // FIXME: This should work for PIE, but the gold linker doesn't support it.
-  if (isa<llvm::Function>(GV) && !CGOpts.NoPLT && RM == llvm::Reloc::Static)
-    return true;
-
-  // Otherwise don't assue it is local.
-  return false;
-}
-
-void CodeGenModule::setDSOLocal(llvm::GlobalValue *GV) const {
-  GV->setDSOLocal(shouldAssumeDSOLocal(*this, GV));
-}
-
-void CodeGenModule::setDLLImportDLLExport(llvm::GlobalValue *GV,
-                                          GlobalDecl GD) const {
-  const auto *D = dyn_cast<NamedDecl>(GD.getDecl());
-  // C++ destructors have a few C++ ABI specific special cases.
-  if (const auto *Dtor = dyn_cast_or_null<CXXDestructorDecl>(D)) {
-    getCXXABI().setCXXDestructorDLLStorage(GV, Dtor, GD.getDtorType());
-    return;
-  }
-  setDLLImportDLLExport(GV, D);
-}
-
-void CodeGenModule::setDLLImportDLLExport(llvm::GlobalValue *GV,
-                                          const NamedDecl *D) const {
-  if (D && D->isExternallyVisible()) {
-    if (D->hasAttr<DLLImportAttr>())
-      GV->setDLLStorageClass(llvm::GlobalVariable::DLLImportStorageClass);
-    else if (D->hasAttr<DLLExportAttr>() && !GV->isDeclarationForLinker())
-      GV->setDLLStorageClass(llvm::GlobalVariable::DLLExportStorageClass);
-  }
-}
-
-void CodeGenModule::setGVProperties(llvm::GlobalValue *GV,
-                                    GlobalDecl GD) const {
-  setDLLImportDLLExport(GV, GD);
-  setGVPropertiesAux(GV, dyn_cast<NamedDecl>(GD.getDecl()));
-}
-
-void CodeGenModule::setGVProperties(llvm::GlobalValue *GV,
-                                    const NamedDecl *D) const {
-  setDLLImportDLLExport(GV, D);
-  setGVPropertiesAux(GV, D);
-}
-
-void CodeGenModule::setGVPropertiesAux(llvm::GlobalValue *GV,
-                                       const NamedDecl *D) const {
-  setGlobalVisibility(GV, D);
-  setDSOLocal(GV);
-  GV->setPartition(CodeGenOpts.SymbolPartition);
-}
-
-static llvm::GlobalVariable::ThreadLocalMode GetLLVMTLSModel(StringRef S) {
-  return llvm::StringSwitch<llvm::GlobalVariable::ThreadLocalMode>(S)
-      .Case("global-dynamic", llvm::GlobalVariable::GeneralDynamicTLSModel)
-      .Case("local-dynamic", llvm::GlobalVariable::LocalDynamicTLSModel)
-      .Case("initial-exec", llvm::GlobalVariable::InitialExecTLSModel)
-      .Case("local-exec", llvm::GlobalVariable::LocalExecTLSModel);
-}
-
-static llvm::GlobalVariable::ThreadLocalMode GetLLVMTLSModel(
-    CodeGenOptions::TLSModel M) {
-  switch (M) {
-  case CodeGenOptions::GeneralDynamicTLSModel:
-    return llvm::GlobalVariable::GeneralDynamicTLSModel;
-  case CodeGenOptions::LocalDynamicTLSModel:
-    return llvm::GlobalVariable::LocalDynamicTLSModel;
-  case CodeGenOptions::InitialExecTLSModel:
-    return llvm::GlobalVariable::InitialExecTLSModel;
-  case CodeGenOptions::LocalExecTLSModel:
-    return llvm::GlobalVariable::LocalExecTLSModel;
-  }
-  llvm_unreachable("Invalid TLS model!");
-}
-
-void CodeGenModule::setTLSMode(llvm::GlobalValue *GV, const VarDecl &D) const {
-  assert(D.getTLSKind() && "setting TLS mode on non-TLS var!");
-
-  llvm::GlobalValue::ThreadLocalMode TLM;
-  TLM = GetLLVMTLSModel(CodeGenOpts.getDefaultTLSModel());
-
-  // Override the TLS model if it is explicitly specified.
-  if (const TLSModelAttr *Attr = D.getAttr<TLSModelAttr>()) {
-    TLM = GetLLVMTLSModel(Attr->getModel());
-  }
-
-  GV->setThreadLocalMode(TLM);
-}
-
-static std::string getCPUSpecificMangling(const CodeGenModule &CGM,
-                                          StringRef Name) {
-  const TargetInfo &Target = CGM.getTarget();
-  return (Twine('.') + Twine(Target.CPUSpecificManglingCharacter(Name))).str();
-}
-
-static void AppendCPUSpecificCPUDispatchMangling(const CodeGenModule &CGM,
-                                                 const CPUSpecificAttr *Attr,
-                                                 unsigned CPUIndex,
-                                                 raw_ostream &Out) {
-  // cpu_specific gets the current name, dispatch gets the resolver if IFunc is
-  // supported.
-  if (Attr)
-    Out << getCPUSpecificMangling(CGM, Attr->getCPUName(CPUIndex)->getName());
-  else if (CGM.getTarget().supportsIFunc())
-    Out << ".resolver";
-}
-
-static void AppendTargetMangling(const CodeGenModule &CGM,
-                                 const TargetAttr *Attr, raw_ostream &Out) {
-  if (Attr->isDefaultVersion())
-    return;
-
-  Out << '.';
-  const TargetInfo &Target = CGM.getTarget();
-  TargetAttr::ParsedTargetAttr Info =
-      Attr->parse([&Target](StringRef LHS, StringRef RHS) {
-        // Multiversioning doesn't allow "no-${feature}", so we can
-        // only have "+" prefixes here.
-        assert(LHS.startswith("+") && RHS.startswith("+") &&
-               "Features should always have a prefix.");
-        return Target.multiVersionSortPriority(LHS.substr(1)) >
-               Target.multiVersionSortPriority(RHS.substr(1));
-      });
-
-  bool IsFirst = true;
-
-  if (!Info.Architecture.empty()) {
-    IsFirst = false;
-    Out << "arch_" << Info.Architecture;
-  }
-
-  for (StringRef Feat : Info.Features) {
-    if (!IsFirst)
-      Out << '_';
-    IsFirst = false;
-    Out << Feat.substr(1);
-  }
-}
-
-static std::string getMangledNameImpl(const CodeGenModule &CGM, GlobalDecl GD,
-                                      const NamedDecl *ND,
-                                      bool OmitMultiVersionMangling = false) {
-  SmallString<256> Buffer;
-  llvm::raw_svector_ostream Out(Buffer);
-  MangleContext &MC = CGM.getCXXABI().getMangleContext();
-  if (MC.shouldMangleDeclName(ND)) {
-    llvm::raw_svector_ostream Out(Buffer);
-    if (const auto *D = dyn_cast<CXXConstructorDecl>(ND))
-      MC.mangleCXXCtor(D, GD.getCtorType(), Out);
-    else if (const auto *D = dyn_cast<CXXDestructorDecl>(ND))
-      MC.mangleCXXDtor(D, GD.getDtorType(), Out);
-    else
-      MC.mangleName(ND, Out);
-  } else {
-    IdentifierInfo *II = ND->getIdentifier();
-    assert(II && "Attempt to mangle unnamed decl.");
-    const auto *FD = dyn_cast<FunctionDecl>(ND);
-
-    if (FD &&
-        FD->getType()->castAs<FunctionType>()->getCallConv() == CC_X86RegCall) {
-      llvm::raw_svector_ostream Out(Buffer);
-      Out << "__regcall3__" << II->getName();
-    } else {
-      Out << II->getName();
-    }
-  }
-
-  if (const auto *FD = dyn_cast<FunctionDecl>(ND))
-    if (FD->isMultiVersion() && !OmitMultiVersionMangling) {
-      switch (FD->getMultiVersionKind()) {
-      case MultiVersionKind::CPUDispatch:
-      case MultiVersionKind::CPUSpecific:
-        AppendCPUSpecificCPUDispatchMangling(CGM,
-                                             FD->getAttr<CPUSpecificAttr>(),
-                                             GD.getMultiVersionIndex(), Out);
-        break;
-      case MultiVersionKind::Target:
-        AppendTargetMangling(CGM, FD->getAttr<TargetAttr>(), Out);
-        break;
-      case MultiVersionKind::None:
-        llvm_unreachable("None multiversion type isn't valid here");
-      }
-    }
-
-  return Out.str();
-}
-
-void CodeGenModule::UpdateMultiVersionNames(GlobalDecl GD,
-                                            const FunctionDecl *FD) {
-  if (!FD->isMultiVersion())
-    return;
-
-  // Get the name of what this would be without the 'target' attribute.  This
-  // allows us to lookup the version that was emitted when this wasn't a
-  // multiversion function.
-  std::string NonTargetName =
-      getMangledNameImpl(*this, GD, FD, /*OmitMultiVersionMangling=*/true);
-  GlobalDecl OtherGD;
-  if (lookupRepresentativeDecl(NonTargetName, OtherGD)) {
-    assert(OtherGD.getCanonicalDecl()
-               .getDecl()
-               ->getAsFunction()
-               ->isMultiVersion() &&
-           "Other GD should now be a multiversioned function");
-    // OtherFD is the version of this function that was mangled BEFORE
-    // becoming a MultiVersion function.  It potentially needs to be updated.
-    const FunctionDecl *OtherFD = OtherGD.getCanonicalDecl()
-                                      .getDecl()
-                                      ->getAsFunction()
-                                      ->getMostRecentDecl();
-    std::string OtherName = getMangledNameImpl(*this, OtherGD, OtherFD);
-    // This is so that if the initial version was already the 'default'
-    // version, we don't try to update it.
-    if (OtherName != NonTargetName) {
-      // Remove instead of erase, since others may have stored the StringRef
-      // to this.
-      const auto ExistingRecord = Manglings.find(NonTargetName);
-      if (ExistingRecord != std::end(Manglings))
-        Manglings.remove(&(*ExistingRecord));
-      auto Result = Manglings.insert(std::make_pair(OtherName, OtherGD));
-      MangledDeclNames[OtherGD.getCanonicalDecl()] = Result.first->first();
-      if (llvm::GlobalValue *Entry = GetGlobalValue(NonTargetName))
-        Entry->setName(OtherName);
-    }
-  }
-}
-
-StringRef CodeGenModule::getMangledName(GlobalDecl GD) {
-  GlobalDecl CanonicalGD = GD.getCanonicalDecl();
-
-  // Some ABIs don't have constructor variants.  Make sure that base and
-  // complete constructors get mangled the same.
-  if (const auto *CD = dyn_cast<CXXConstructorDecl>(CanonicalGD.getDecl())) {
-    if (!getTarget().getCXXABI().hasConstructorVariants()) {
-      CXXCtorType OrigCtorType = GD.getCtorType();
-      assert(OrigCtorType == Ctor_Base || OrigCtorType == Ctor_Complete);
-      if (OrigCtorType == Ctor_Base)
-        CanonicalGD = GlobalDecl(CD, Ctor_Complete);
-    }
-  }
-
-  auto FoundName = MangledDeclNames.find(CanonicalGD);
-  if (FoundName != MangledDeclNames.end())
-    return FoundName->second;
-
-  // Keep the first result in the case of a mangling collision.
-  const auto *ND = cast<NamedDecl>(GD.getDecl());
-  std::string MangledName = getMangledNameImpl(*this, GD, ND);
-
-  // Adjust kernel stub mangling as we may need to be able to differentiate
-  // them from the kernel itself (e.g., for HIP).
-  if (auto *FD = dyn_cast<FunctionDecl>(GD.getDecl()))
-    if (!getLangOpts().CUDAIsDevice && FD->hasAttr<CUDAGlobalAttr>())
-      MangledName = getCUDARuntime().getDeviceStubName(MangledName);
-
-  auto Result = Manglings.insert(std::make_pair(MangledName, GD));
-  return MangledDeclNames[CanonicalGD] = Result.first->first();
-}
-
-StringRef CodeGenModule::getBlockMangledName(GlobalDecl GD,
-                                             const BlockDecl *BD) {
-  MangleContext &MangleCtx = getCXXABI().getMangleContext();
-  const Decl *D = GD.getDecl();
-
-  SmallString<256> Buffer;
-  llvm::raw_svector_ostream Out(Buffer);
-  if (!D)
-    MangleCtx.mangleGlobalBlock(BD,
-      dyn_cast_or_null<VarDecl>(initializedGlobalDecl.getDecl()), Out);
-  else if (const auto *CD = dyn_cast<CXXConstructorDecl>(D))
-    MangleCtx.mangleCtorBlock(CD, GD.getCtorType(), BD, Out);
-  else if (const auto *DD = dyn_cast<CXXDestructorDecl>(D))
-    MangleCtx.mangleDtorBlock(DD, GD.getDtorType(), BD, Out);
-  else
-    MangleCtx.mangleBlock(cast<DeclContext>(D), BD, Out);
-
-  auto Result = Manglings.insert(std::make_pair(Out.str(), BD));
-  return Result.first->first();
-}
-
-llvm::GlobalValue *CodeGenModule::GetGlobalValue(StringRef Name) {
-  return getModule().getNamedValue(Name);
-}
-
-/// AddGlobalCtor - Add a function to the list that will be called before
-/// main() runs.
-void CodeGenModule::AddGlobalCtor(llvm::Function *Ctor, int Priority,
-                                  llvm::Constant *AssociatedData) {
-  // FIXME: Type coercion of void()* types.
-  GlobalCtors.push_back(Structor(Priority, Ctor, AssociatedData));
-}
-
-/// AddGlobalDtor - Add a function to the list that will be called
-/// when the module is unloaded.
-void CodeGenModule::AddGlobalDtor(llvm::Function *Dtor, int Priority) {
-  if (CodeGenOpts.RegisterGlobalDtorsWithAtExit) {
-    DtorsUsingAtExit[Priority].push_back(Dtor);
-    return;
-  }
-
-  // FIXME: Type coercion of void()* types.
-  GlobalDtors.push_back(Structor(Priority, Dtor, nullptr));
-}
-
-void CodeGenModule::EmitCtorList(CtorList &Fns, const char *GlobalName) {
-  if (Fns.empty()) return;
-
-  // Ctor function type is void()*.
-  llvm::FunctionType* CtorFTy = llvm::FunctionType::get(VoidTy, false);
-  llvm::Type *CtorPFTy = llvm::PointerType::get(CtorFTy,
-      TheModule.getDataLayout().getProgramAddressSpace());
-
-  // Get the type of a ctor entry, { i32, void ()*, i8* }.
-  llvm::StructType *CtorStructTy = llvm::StructType::get(
-      Int32Ty, CtorPFTy, VoidPtrTy);
-
-  // Construct the constructor and destructor arrays.
-  ConstantInitBuilder builder(*this);
-  auto ctors = builder.beginArray(CtorStructTy);
-  for (const auto &I : Fns) {
-    auto ctor = ctors.beginStruct(CtorStructTy);
-    ctor.addInt(Int32Ty, I.Priority);
-    ctor.add(llvm::ConstantExpr::getBitCast(I.Initializer, CtorPFTy));
-    if (I.AssociatedData)
-      ctor.add(llvm::ConstantExpr::getBitCast(I.AssociatedData, VoidPtrTy));
-    else
-      ctor.addNullPointer(VoidPtrTy);
-    ctor.finishAndAddTo(ctors);
-  }
-
-  auto list =
-    ctors.finishAndCreateGlobal(GlobalName, getPointerAlign(),
-                                /*constant*/ false,
-                                llvm::GlobalValue::AppendingLinkage);
-
-  // The LTO linker doesn't seem to like it when we set an alignment
-  // on appending variables.  Take it off as a workaround.
-  list->setAlignment(0);
-
-  Fns.clear();
-}
-
-llvm::GlobalValue::LinkageTypes
-CodeGenModule::getFunctionLinkage(GlobalDecl GD) {
-  const auto *D = cast<FunctionDecl>(GD.getDecl());
-
-  GVALinkage Linkage = getContext().GetGVALinkageForFunction(D);
-
-  if (const auto *Dtor = dyn_cast<CXXDestructorDecl>(D))
-    return getCXXABI().getCXXDestructorLinkage(Linkage, Dtor, GD.getDtorType());
-
-  if (isa<CXXConstructorDecl>(D) &&
-      cast<CXXConstructorDecl>(D)->isInheritingConstructor() &&
-      Context.getTargetInfo().getCXXABI().isMicrosoft()) {
-    // Our approach to inheriting constructors is fundamentally different from
-    // that used by the MS ABI, so keep our inheriting constructor thunks
-    // internal rather than trying to pick an unambiguous mangling for them.
-    return llvm::GlobalValue::InternalLinkage;
-  }
-
-  return getLLVMLinkageForDeclarator(D, Linkage, /*IsConstantVariable=*/false);
-}
-
-llvm::ConstantInt *CodeGenModule::CreateCrossDsoCfiTypeId(llvm::Metadata *MD) {
-  llvm::MDString *MDS = dyn_cast<llvm::MDString>(MD);
-  if (!MDS) return nullptr;
-
-  return llvm::ConstantInt::get(Int64Ty, llvm::MD5Hash(MDS->getString()));
-}
-
-void CodeGenModule::SetLLVMFunctionAttributes(GlobalDecl GD,
-                                              const CGFunctionInfo &Info,
-                                              llvm::Function *F) {
-  unsigned CallingConv;
-  llvm::AttributeList PAL;
-  ConstructAttributeList(F->getName(), Info, GD, PAL, CallingConv, false);
-  F->setAttributes(PAL);
-  F->setCallingConv(static_cast<llvm::CallingConv::ID>(CallingConv));
-}
-
-static void removeImageAccessQualifier(std::string& TyName) {
-  std::string ReadOnlyQual("__read_only");
-  std::string::size_type ReadOnlyPos = TyName.find(ReadOnlyQual);
-  if (ReadOnlyPos != std::string::npos)
-    // "+ 1" for the space after access qualifier.
-    TyName.erase(ReadOnlyPos, ReadOnlyQual.size() + 1);
-  else {
-    std::string WriteOnlyQual("__write_only");
-    std::string::size_type WriteOnlyPos = TyName.find(WriteOnlyQual);
-    if (WriteOnlyPos != std::string::npos)
-      TyName.erase(WriteOnlyPos, WriteOnlyQual.size() + 1);
-    else {
-      std::string ReadWriteQual("__read_write");
-      std::string::size_type ReadWritePos = TyName.find(ReadWriteQual);
-      if (ReadWritePos != std::string::npos)
-        TyName.erase(ReadWritePos, ReadWriteQual.size() + 1);
-    }
-  }
-}
-
-// Returns the address space id that should be produced to the
-// kernel_arg_addr_space metadata. This is always fixed to the ids
-// as specified in the SPIR 2.0 specification in order to differentiate
-// for example in clGetKernelArgInfo() implementation between the address
-// spaces with targets without unique mapping to the OpenCL address spaces
-// (basically all single AS CPUs).
-static unsigned ArgInfoAddressSpace(LangAS AS) {
-  switch (AS) {
-  case LangAS::opencl_global:   return 1;
-  case LangAS::opencl_constant: return 2;
-  case LangAS::opencl_local:    return 3;
-  case LangAS::opencl_generic:  return 4; // Not in SPIR 2.0 specs.
-  default:
-    return 0; // Assume private.
-  }
-}
-
-void CodeGenModule::GenOpenCLArgMetadata(llvm::Function *Fn,
-                                         const FunctionDecl *FD,
-                                         CodeGenFunction *CGF) {
-  assert(((FD && CGF) || (!FD && !CGF)) &&
-         "Incorrect use - FD and CGF should either be both null or not!");
-  // Create MDNodes that represent the kernel arg metadata.
-  // Each MDNode is a list in the form of "key", N number of values which is
-  // the same number of values as their are kernel arguments.
-
-  const PrintingPolicy &Policy = Context.getPrintingPolicy();
-
-  // MDNode for the kernel argument address space qualifiers.
-  SmallVector<llvm::Metadata *, 8> addressQuals;
-
-  // MDNode for the kernel argument access qualifiers (images only).
-  SmallVector<llvm::Metadata *, 8> accessQuals;
-
-  // MDNode for the kernel argument type names.
-  SmallVector<llvm::Metadata *, 8> argTypeNames;
-
-  // MDNode for the kernel argument base type names.
-  SmallVector<llvm::Metadata *, 8> argBaseTypeNames;
-
-  // MDNode for the kernel argument type qualifiers.
-  SmallVector<llvm::Metadata *, 8> argTypeQuals;
-
-  // MDNode for the kernel argument names.
-  SmallVector<llvm::Metadata *, 8> argNames;
-
-  if (FD && CGF)
-    for (unsigned i = 0, e = FD->getNumParams(); i != e; ++i) {
-      const ParmVarDecl *parm = FD->getParamDecl(i);
-      QualType ty = parm->getType();
-      std::string typeQuals;
-
-      if (ty->isPointerType()) {
-        QualType pointeeTy = ty->getPointeeType();
-
-        // Get address qualifier.
-        addressQuals.push_back(
-            llvm::ConstantAsMetadata::get(CGF->Builder.getInt32(
-                ArgInfoAddressSpace(pointeeTy.getAddressSpace()))));
-
-        // Get argument type name.
-        std::string typeName =
-            pointeeTy.getUnqualifiedType().getAsString(Policy) + "*";
-
-        // Turn "unsigned type" to "utype"
-        std::string::size_type pos = typeName.find("unsigned");
-        if (pointeeTy.isCanonical() && pos != std::string::npos)
-          typeName.erase(pos + 1, 8);
-
-        argTypeNames.push_back(llvm::MDString::get(VMContext, typeName));
-
-        std::string baseTypeName =
-            pointeeTy.getUnqualifiedType().getCanonicalType().getAsString(
-                Policy) +
-            "*";
-
-        // Turn "unsigned type" to "utype"
-        pos = baseTypeName.find("unsigned");
-        if (pos != std::string::npos)
-          baseTypeName.erase(pos + 1, 8);
-
-        argBaseTypeNames.push_back(
-            llvm::MDString::get(VMContext, baseTypeName));
-
-        // Get argument type qualifiers:
-        if (ty.isRestrictQualified())
-          typeQuals = "restrict";
-        if (pointeeTy.isConstQualified() ||
-            (pointeeTy.getAddressSpace() == LangAS::opencl_constant))
-          typeQuals += typeQuals.empty() ? "const" : " const";
-        if (pointeeTy.isVolatileQualified())
-          typeQuals += typeQuals.empty() ? "volatile" : " volatile";
-      } else {
-        uint32_t AddrSpc = 0;
-        bool isPipe = ty->isPipeType();
-        if (ty->isImageType() || isPipe)
-          AddrSpc = ArgInfoAddressSpace(LangAS::opencl_global);
-
-        addressQuals.push_back(
-            llvm::ConstantAsMetadata::get(CGF->Builder.getInt32(AddrSpc)));
-
-        // Get argument type name.
-        std::string typeName;
-        if (isPipe)
-          typeName = ty.getCanonicalType()
-                         ->getAs<PipeType>()
-                         ->getElementType()
-                         .getAsString(Policy);
-        else
-          typeName = ty.getUnqualifiedType().getAsString(Policy);
-
-        // Turn "unsigned type" to "utype"
-        std::string::size_type pos = typeName.find("unsigned");
-        if (ty.isCanonical() && pos != std::string::npos)
-          typeName.erase(pos + 1, 8);
-
-        std::string baseTypeName;
-        if (isPipe)
-          baseTypeName = ty.getCanonicalType()
-                             ->getAs<PipeType>()
-                             ->getElementType()
-                             .getCanonicalType()
-                             .getAsString(Policy);
-        else
-          baseTypeName =
-              ty.getUnqualifiedType().getCanonicalType().getAsString(Policy);
-
-        // Remove access qualifiers on images
-        // (as they are inseparable from type in clang implementation,
-        // but OpenCL spec provides a special query to get access qualifier
-        // via clGetKernelArgInfo with CL_KERNEL_ARG_ACCESS_QUALIFIER):
-        if (ty->isImageType()) {
-          removeImageAccessQualifier(typeName);
-          removeImageAccessQualifier(baseTypeName);
-        }
-
-        argTypeNames.push_back(llvm::MDString::get(VMContext, typeName));
-
-        // Turn "unsigned type" to "utype"
-        pos = baseTypeName.find("unsigned");
-        if (pos != std::string::npos)
-          baseTypeName.erase(pos + 1, 8);
-
-        argBaseTypeNames.push_back(
-            llvm::MDString::get(VMContext, baseTypeName));
-
-        if (isPipe)
-          typeQuals = "pipe";
-      }
-
-      argTypeQuals.push_back(llvm::MDString::get(VMContext, typeQuals));
-
-      // Get image and pipe access qualifier:
-      if (ty->isImageType() || ty->isPipeType()) {
-        const Decl *PDecl = parm;
-        if (auto *TD = dyn_cast<TypedefType>(ty))
-          PDecl = TD->getDecl();
-        const OpenCLAccessAttr *A = PDecl->getAttr<OpenCLAccessAttr>();
-        if (A && A->isWriteOnly())
-          accessQuals.push_back(llvm::MDString::get(VMContext, "write_only"));
-        else if (A && A->isReadWrite())
-          accessQuals.push_back(llvm::MDString::get(VMContext, "read_write"));
-        else
-          accessQuals.push_back(llvm::MDString::get(VMContext, "read_only"));
-      } else
-        accessQuals.push_back(llvm::MDString::get(VMContext, "none"));
-
-      // Get argument name.
-      argNames.push_back(llvm::MDString::get(VMContext, parm->getName()));
-    }
-
-  Fn->setMetadata("kernel_arg_addr_space",
-                  llvm::MDNode::get(VMContext, addressQuals));
-  Fn->setMetadata("kernel_arg_access_qual",
-                  llvm::MDNode::get(VMContext, accessQuals));
-  Fn->setMetadata("kernel_arg_type",
-                  llvm::MDNode::get(VMContext, argTypeNames));
-  Fn->setMetadata("kernel_arg_base_type",
-                  llvm::MDNode::get(VMContext, argBaseTypeNames));
-  Fn->setMetadata("kernel_arg_type_qual",
-                  llvm::MDNode::get(VMContext, argTypeQuals));
-  if (getCodeGenOpts().EmitOpenCLArgMetadata)
-    Fn->setMetadata("kernel_arg_name",
-                    llvm::MDNode::get(VMContext, argNames));
-}
-
-/// Determines whether the language options require us to model
-/// unwind exceptions.  We treat -fexceptions as mandating this
-/// except under the fragile ObjC ABI with only ObjC exceptions
-/// enabled.  This means, for example, that C with -fexceptions
-/// enables this.
-static bool hasUnwindExceptions(const LangOptions &LangOpts) {
-  // If exceptions are completely disabled, obviously this is false.
-  if (!LangOpts.Exceptions) return false;
-
-  // If C++ exceptions are enabled, this is true.
-  if (LangOpts.CXXExceptions) return true;
-
-  // If ObjC exceptions are enabled, this depends on the ABI.
-  if (LangOpts.ObjCExceptions) {
-    return LangOpts.ObjCRuntime.hasUnwindExceptions();
-  }
-
-  return true;
-}
-
-static bool requiresMemberFunctionPointerTypeMetadata(CodeGenModule &CGM,
-                                                      const CXXMethodDecl *MD) {
-  // Check that the type metadata can ever actually be used by a call.
-  if (!CGM.getCodeGenOpts().LTOUnit ||
-      !CGM.HasHiddenLTOVisibility(MD->getParent()))
-    return false;
-
-  // Only functions whose address can be taken with a member function pointer
-  // need this sort of type metadata.
-  return !MD->isStatic() && !MD->isVirtual() && !isa<CXXConstructorDecl>(MD) &&
-         !isa<CXXDestructorDecl>(MD);
-}
-
-std::vector<const CXXRecordDecl *>
-CodeGenModule::getMostBaseClasses(const CXXRecordDecl *RD) {
-  llvm::SetVector<const CXXRecordDecl *> MostBases;
-
-  std::function<void (const CXXRecordDecl *)> CollectMostBases;
-  CollectMostBases = [&](const CXXRecordDecl *RD) {
-    if (RD->getNumBases() == 0)
-      MostBases.insert(RD);
-    for (const CXXBaseSpecifier &B : RD->bases())
-      CollectMostBases(B.getType()->getAsCXXRecordDecl());
-  };
-  CollectMostBases(RD);
-  return MostBases.takeVector();
-}
-
-void CodeGenModule::SetLLVMFunctionAttributesForDefinition(const Decl *D,
-                                                           llvm::Function *F) {
-  llvm::AttrBuilder B;
-
-  if (CodeGenOpts.UnwindTables)
-    B.addAttribute(llvm::Attribute::UWTable);
-
-  if (!hasUnwindExceptions(LangOpts))
-    B.addAttribute(llvm::Attribute::NoUnwind);
-
-  if (!D || !D->hasAttr<NoStackProtectorAttr>()) {
-    if (LangOpts.getStackProtector() == LangOptions::SSPOn)
-      B.addAttribute(llvm::Attribute::StackProtect);
-    else if (LangOpts.getStackProtector() == LangOptions::SSPStrong)
-      B.addAttribute(llvm::Attribute::StackProtectStrong);
-    else if (LangOpts.getStackProtector() == LangOptions::SSPReq)
-      B.addAttribute(llvm::Attribute::StackProtectReq);
-  }
-
-  if (!D) {
-    // If we don't have a declaration to control inlining, the function isn't
-    // explicitly marked as alwaysinline for semantic reasons, and inlining is
-    // disabled, mark the function as noinline.
-    if (!F->hasFnAttribute(llvm::Attribute::AlwaysInline) &&
-        CodeGenOpts.getInlining() == CodeGenOptions::OnlyAlwaysInlining)
-      B.addAttribute(llvm::Attribute::NoInline);
-
-    F->addAttributes(llvm::AttributeList::FunctionIndex, B);
-    return;
-  }
-
-  // Track whether we need to add the optnone LLVM attribute,
-  // starting with the default for this optimization level.
-  bool ShouldAddOptNone =
-      !CodeGenOpts.DisableO0ImplyOptNone && CodeGenOpts.OptimizationLevel == 0;
-  // We can't add optnone in the following cases, it won't pass the verifier.
-  ShouldAddOptNone &= !D->hasAttr<MinSizeAttr>();
-  ShouldAddOptNone &= !F->hasFnAttribute(llvm::Attribute::AlwaysInline);
-  ShouldAddOptNone &= !D->hasAttr<AlwaysInlineAttr>();
-
-  if (ShouldAddOptNone || D->hasAttr<OptimizeNoneAttr>()) {
-    B.addAttribute(llvm::Attribute::OptimizeNone);
-
-    // OptimizeNone implies noinline; we should not be inlining such functions.
-    B.addAttribute(llvm::Attribute::NoInline);
-    assert(!F->hasFnAttribute(llvm::Attribute::AlwaysInline) &&
-           "OptimizeNone and AlwaysInline on same function!");
-
-    // We still need to handle naked functions even though optnone subsumes
-    // much of their semantics.
-    if (D->hasAttr<NakedAttr>())
-      B.addAttribute(llvm::Attribute::Naked);
-
-    // OptimizeNone wins over OptimizeForSize and MinSize.
-    F->removeFnAttr(llvm::Attribute::OptimizeForSize);
-    F->removeFnAttr(llvm::Attribute::MinSize);
-  } else if (D->hasAttr<NakedAttr>()) {
-    // Naked implies noinline: we should not be inlining such functions.
-    B.addAttribute(llvm::Attribute::Naked);
-    B.addAttribute(llvm::Attribute::NoInline);
-  } else if (D->hasAttr<NoDuplicateAttr>()) {
-    B.addAttribute(llvm::Attribute::NoDuplicate);
-  } else if (D->hasAttr<NoInlineAttr>()) {
-    B.addAttribute(llvm::Attribute::NoInline);
-  } else if (D->hasAttr<AlwaysInlineAttr>() &&
-             !F->hasFnAttribute(llvm::Attribute::NoInline)) {
-    // (noinline wins over always_inline, and we can't specify both in IR)
-    B.addAttribute(llvm::Attribute::AlwaysInline);
-  } else if (CodeGenOpts.getInlining() == CodeGenOptions::OnlyAlwaysInlining) {
-    // If we're not inlining, then force everything that isn't always_inline to
-    // carry an explicit noinline attribute.
-    if (!F->hasFnAttribute(llvm::Attribute::AlwaysInline))
-      B.addAttribute(llvm::Attribute::NoInline);
-  } else {
-    // Otherwise, propagate the inline hint attribute and potentially use its
-    // absence to mark things as noinline.
-    if (auto *FD = dyn_cast<FunctionDecl>(D)) {
-      // Search function and template pattern redeclarations for inline.
-      auto CheckForInline = [](const FunctionDecl *FD) {
-        auto CheckRedeclForInline = [](const FunctionDecl *Redecl) {
-          return Redecl->isInlineSpecified();
-        };
-        if (any_of(FD->redecls(), CheckRedeclForInline))
-          return true;
-        const FunctionDecl *Pattern = FD->getTemplateInstantiationPattern();
-        if (!Pattern)
-          return false;
-        return any_of(Pattern->redecls(), CheckRedeclForInline);
-      };
-      if (CheckForInline(FD)) {
-        B.addAttribute(llvm::Attribute::InlineHint);
-      } else if (CodeGenOpts.getInlining() ==
-                     CodeGenOptions::OnlyHintInlining &&
-                 !FD->isInlined() &&
-                 !F->hasFnAttribute(llvm::Attribute::AlwaysInline)) {
-        B.addAttribute(llvm::Attribute::NoInline);
-      }
-    }
-  }
-
-  // Add other optimization related attributes if we are optimizing this
-  // function.
-  if (!D->hasAttr<OptimizeNoneAttr>()) {
-    if (D->hasAttr<ColdAttr>()) {
-      if (!ShouldAddOptNone)
-        B.addAttribute(llvm::Attribute::OptimizeForSize);
-      B.addAttribute(llvm::Attribute::Cold);
-    }
-
-    if (D->hasAttr<MinSizeAttr>())
-      B.addAttribute(llvm::Attribute::MinSize);
-  }
-
-  F->addAttributes(llvm::AttributeList::FunctionIndex, B);
-
-  unsigned alignment = D->getMaxAlignment() / Context.getCharWidth();
-  if (alignment)
-    F->setAlignment(alignment);
-
-  if (!D->hasAttr<AlignedAttr>())
-    if (LangOpts.FunctionAlignment)
-      F->setAlignment(1 << LangOpts.FunctionAlignment);
-
-  // Some C++ ABIs require 2-byte alignment for member functions, in order to
-  // reserve a bit for differentiating between virtual and non-virtual member
-  // functions. If the current target's C++ ABI requires this and this is a
-  // member function, set its alignment accordingly.
-  if (getTarget().getCXXABI().areMemberFunctionsAligned()) {
-    if (F->getAlignment() < 2 && isa<CXXMethodDecl>(D))
-      F->setAlignment(2);
-  }
-
-  // In the cross-dso CFI mode, we want !type attributes on definitions only.
-  if (CodeGenOpts.SanitizeCfiCrossDso)
-    if (auto *FD = dyn_cast<FunctionDecl>(D))
-      CreateFunctionTypeMetadataForIcall(FD, F);
-
-  // Emit type metadata on member functions for member function pointer checks.
-  // These are only ever necessary on definitions; we're guaranteed that the
-  // definition will be present in the LTO unit as a result of LTO visibility.
-  auto *MD = dyn_cast<CXXMethodDecl>(D);
-  if (MD && requiresMemberFunctionPointerTypeMetadata(*this, MD)) {
-    for (const CXXRecordDecl *Base : getMostBaseClasses(MD->getParent())) {
-      llvm::Metadata *Id =
-          CreateMetadataIdentifierForType(Context.getMemberPointerType(
-              MD->getType(), Context.getRecordType(Base).getTypePtr()));
-      F->addTypeMetadata(0, Id);
-    }
-  }
-}
-
-void CodeGenModule::SetCommonAttributes(GlobalDecl GD, llvm::GlobalValue *GV) {
-  const Decl *D = GD.getDecl();
-  if (dyn_cast_or_null<NamedDecl>(D))
-    setGVProperties(GV, GD);
-  else
-    GV->setVisibility(llvm::GlobalValue::DefaultVisibility);
-
-  if (D && D->hasAttr<UsedAttr>())
-    addUsedGlobal(GV);
-
-  if (CodeGenOpts.KeepStaticConsts && D && isa<VarDecl>(D)) {
-    const auto *VD = cast<VarDecl>(D);
-    if (VD->getType().isConstQualified() &&
-        VD->getStorageDuration() == SD_Static)
-      addUsedGlobal(GV);
-  }
-}
-
-bool CodeGenModule::GetCPUAndFeaturesAttributes(GlobalDecl GD,
-                                                llvm::AttrBuilder &Attrs) {
-  // Add target-cpu and target-features attributes to functions. If
-  // we have a decl for the function and it has a target attribute then
-  // parse that and add it to the feature set.
-  StringRef TargetCPU = getTarget().getTargetOpts().CPU;
-  std::vector<std::string> Features;
-  const auto *FD = dyn_cast_or_null<FunctionDecl>(GD.getDecl());
-  FD = FD ? FD->getMostRecentDecl() : FD;
-  const auto *TD = FD ? FD->getAttr<TargetAttr>() : nullptr;
-  const auto *SD = FD ? FD->getAttr<CPUSpecificAttr>() : nullptr;
-  bool AddedAttr = false;
-  if (TD || SD) {
-    llvm::StringMap<bool> FeatureMap;
-    getFunctionFeatureMap(FeatureMap, GD);
-
-    // Produce the canonical string for this set of features.
-    for (const llvm::StringMap<bool>::value_type &Entry : FeatureMap)
-      Features.push_back((Entry.getValue() ? "+" : "-") + Entry.getKey().str());
-
-    // Now add the target-cpu and target-features to the function.
-    // While we populated the feature map above, we still need to
-    // get and parse the target attribute so we can get the cpu for
-    // the function.
-    if (TD) {
-      TargetAttr::ParsedTargetAttr ParsedAttr = TD->parse();
-      if (ParsedAttr.Architecture != "" &&
-          getTarget().isValidCPUName(ParsedAttr.Architecture))
-        TargetCPU = ParsedAttr.Architecture;
-    }
-  } else {
-    // Otherwise just add the existing target cpu and target features to the
-    // function.
-    Features = getTarget().getTargetOpts().Features;
-  }
-
-  if (TargetCPU != "") {
-    Attrs.addAttribute("target-cpu", TargetCPU);
-    AddedAttr = true;
-  }
-  if (!Features.empty()) {
-    llvm::sort(Features);
-    Attrs.addAttribute("target-features", llvm::join(Features, ","));
-    AddedAttr = true;
-  }
-
-  return AddedAttr;
-}
-
-void CodeGenModule::setNonAliasAttributes(GlobalDecl GD,
-                                          llvm::GlobalObject *GO) {
-  const Decl *D = GD.getDecl();
-  SetCommonAttributes(GD, GO);
-
-  if (D) {
-    if (auto *GV = dyn_cast<llvm::GlobalVariable>(GO)) {
-      if (auto *SA = D->getAttr<PragmaClangBSSSectionAttr>())
-        GV->addAttribute("bss-section", SA->getName());
-      if (auto *SA = D->getAttr<PragmaClangDataSectionAttr>())
-        GV->addAttribute("data-section", SA->getName());
-      if (auto *SA = D->getAttr<PragmaClangRodataSectionAttr>())
-        GV->addAttribute("rodata-section", SA->getName());
-    }
-
-    if (auto *F = dyn_cast<llvm::Function>(GO)) {
-      if (auto *SA = D->getAttr<PragmaClangTextSectionAttr>())
-        if (!D->getAttr<SectionAttr>())
-          F->addFnAttr("implicit-section-name", SA->getName());
-
-      llvm::AttrBuilder Attrs;
-      if (GetCPUAndFeaturesAttributes(GD, Attrs)) {
-        // We know that GetCPUAndFeaturesAttributes will always have the
-        // newest set, since it has the newest possible FunctionDecl, so the
-        // new ones should replace the old.
-        F->removeFnAttr("target-cpu");
-        F->removeFnAttr("target-features");
-        F->addAttributes(llvm::AttributeList::FunctionIndex, Attrs);
-      }
-    }
-
-    if (const auto *CSA = D->getAttr<CodeSegAttr>())
-      GO->setSection(CSA->getName());
-    else if (const auto *SA = D->getAttr<SectionAttr>())
-      GO->setSection(SA->getName());
-  }
-
-  getTargetCodeGenInfo().setTargetAttributes(D, GO, *this);
-}
-
-void CodeGenModule::SetInternalFunctionAttributes(GlobalDecl GD,
-                                                  llvm::Function *F,
-                                                  const CGFunctionInfo &FI) {
-  const Decl *D = GD.getDecl();
-  SetLLVMFunctionAttributes(GD, FI, F);
-  SetLLVMFunctionAttributesForDefinition(D, F);
-
-  F->setLinkage(llvm::Function::InternalLinkage);
-
-  setNonAliasAttributes(GD, F);
-}
-
-static void setLinkageForGV(llvm::GlobalValue *GV, const NamedDecl *ND) {
-  // Set linkage and visibility in case we never see a definition.
-  LinkageInfo LV = ND->getLinkageAndVisibility();
-  // Don't set internal linkage on declarations.
-  // "extern_weak" is overloaded in LLVM; we probably should have
-  // separate linkage types for this.
-  if (isExternallyVisible(LV.getLinkage()) &&
-      (ND->hasAttr<WeakAttr>() || ND->isWeakImported()))
-    GV->setLinkage(llvm::GlobalValue::ExternalWeakLinkage);
-}
-
-void CodeGenModule::CreateFunctionTypeMetadataForIcall(const FunctionDecl *FD,
-                                                       llvm::Function *F) {
-  // Only if we are checking indirect calls.
-  if (!LangOpts.Sanitize.has(SanitizerKind::CFIICall))
-    return;
-
-  // Non-static class methods are handled via vtable or member function pointer
-  // checks elsewhere.
-  if (isa<CXXMethodDecl>(FD) && !cast<CXXMethodDecl>(FD)->isStatic())
-    return;
-
-  // Additionally, if building with cross-DSO support...
-  if (CodeGenOpts.SanitizeCfiCrossDso) {
-    // Skip available_externally functions. They won't be codegen'ed in the
-    // current module anyway.
-    if (getContext().GetGVALinkageForFunction(FD) == GVA_AvailableExternally)
-      return;
-  }
-
-  llvm::Metadata *MD = CreateMetadataIdentifierForType(FD->getType());
-  F->addTypeMetadata(0, MD);
-  F->addTypeMetadata(0, CreateMetadataIdentifierGeneralized(FD->getType()));
-
-  // Emit a hash-based bit set entry for cross-DSO calls.
-  if (CodeGenOpts.SanitizeCfiCrossDso)
-    if (auto CrossDsoTypeId = CreateCrossDsoCfiTypeId(MD))
-      F->addTypeMetadata(0, llvm::ConstantAsMetadata::get(CrossDsoTypeId));
-}
-
-void CodeGenModule::SetFunctionAttributes(GlobalDecl GD, llvm::Function *F,
-                                          bool IsIncompleteFunction,
-                                          bool IsThunk) {
-
-  if (llvm::Intrinsic::ID IID = F->getIntrinsicID()) {
-    // If this is an intrinsic function, set the function's attributes
-    // to the intrinsic's attributes.
-    F->setAttributes(llvm::Intrinsic::getAttributes(getLLVMContext(), IID));
-    return;
-  }
-
-  const auto *FD = cast<FunctionDecl>(GD.getDecl());
-
-  if (!IsIncompleteFunction)
-    SetLLVMFunctionAttributes(GD, getTypes().arrangeGlobalDeclaration(GD), F);
-
-  // Add the Returned attribute for "this", except for iOS 5 and earlier
-  // where substantial code, including the libstdc++ dylib, was compiled with
-  // GCC and does not actually return "this".
-  if (!IsThunk && getCXXABI().HasThisReturn(GD) &&
-      !(getTriple().isiOS() && getTriple().isOSVersionLT(6))) {
-    assert(!F->arg_empty() &&
-           F->arg_begin()->getType()
-             ->canLosslesslyBitCastTo(F->getReturnType()) &&
-           "unexpected this return");
-    F->addAttribute(1, llvm::Attribute::Returned);
-  }
-
-  // Only a few attributes are set on declarations; these may later be
-  // overridden by a definition.
-
-  setLinkageForGV(F, FD);
-  setGVProperties(F, FD);
-
-  // Setup target-specific attributes.
-  if (!IsIncompleteFunction && F->isDeclaration())
-    getTargetCodeGenInfo().setTargetAttributes(FD, F, *this);
-
-  if (const auto *CSA = FD->getAttr<CodeSegAttr>())
-    F->setSection(CSA->getName());
-  else if (const auto *SA = FD->getAttr<SectionAttr>())
-     F->setSection(SA->getName());
-
-  if (FD->isReplaceableGlobalAllocationFunction()) {
-    // A replaceable global allocation function does not act like a builtin by
-    // default, only if it is invoked by a new-expression or delete-expression.
-    F->addAttribute(llvm::AttributeList::FunctionIndex,
-                    llvm::Attribute::NoBuiltin);
-
-    // A sane operator new returns a non-aliasing pointer.
-    // FIXME: Also add NonNull attribute to the return value
-    // for the non-nothrow forms?
-    auto Kind = FD->getDeclName().getCXXOverloadedOperator();
-    if (getCodeGenOpts().AssumeSaneOperatorNew &&
-        (Kind == OO_New || Kind == OO_Array_New))
-      F->addAttribute(llvm::AttributeList::ReturnIndex,
-                      llvm::Attribute::NoAlias);
-  }
-
-  if (isa<CXXConstructorDecl>(FD) || isa<CXXDestructorDecl>(FD))
-    F->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-  else if (const auto *MD = dyn_cast<CXXMethodDecl>(FD))
-    if (MD->isVirtual())
-      F->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-
-  // Don't emit entries for function declarations in the cross-DSO mode. This
-  // is handled with better precision by the receiving DSO.
-  if (!CodeGenOpts.SanitizeCfiCrossDso)
-    CreateFunctionTypeMetadataForIcall(FD, F);
-
-  if (getLangOpts().OpenMP && FD->hasAttr<OMPDeclareSimdDeclAttr>())
-    getOpenMPRuntime().emitDeclareSimdFunction(FD, F);
-
-  if (const auto *CB = FD->getAttr<CallbackAttr>()) {
-    // Annotate the callback behavior as metadata:
-    //  - The callback callee (as argument number).
-    //  - The callback payloads (as argument numbers).
-    llvm::LLVMContext &Ctx = F->getContext();
-    llvm::MDBuilder MDB(Ctx);
-
-    // The payload indices are all but the first one in the encoding. The first
-    // identifies the callback callee.
-    int CalleeIdx = *CB->encoding_begin();
-    ArrayRef<int> PayloadIndices(CB->encoding_begin() + 1, CB->encoding_end());
-    F->addMetadata(llvm::LLVMContext::MD_callback,
-                   *llvm::MDNode::get(Ctx, {MDB.createCallbackEncoding(
-                                               CalleeIdx, PayloadIndices,
-                                               /* VarArgsArePassed */ false)}));
-  }
-}
-
-void CodeGenModule::addUsedGlobal(llvm::GlobalValue *GV) {
-  assert(!GV->isDeclaration() &&
-         "Only globals with definition can force usage.");
-  LLVMUsed.emplace_back(GV);
-}
-
-void CodeGenModule::addCompilerUsedGlobal(llvm::GlobalValue *GV) {
-  assert(!GV->isDeclaration() &&
-         "Only globals with definition can force usage.");
-  LLVMCompilerUsed.emplace_back(GV);
-}
-
-static void emitUsed(CodeGenModule &CGM, StringRef Name,
-                     std::vector<llvm::WeakTrackingVH> &List) {
-  // Don't create llvm.used if there is no need.
-  if (List.empty())
-    return;
-
-  // Convert List to what ConstantArray needs.
-  SmallVector<llvm::Constant*, 8> UsedArray;
-  UsedArray.resize(List.size());
-  for (unsigned i = 0, e = List.size(); i != e; ++i) {
-    UsedArray[i] =
-        llvm::ConstantExpr::getPointerBitCastOrAddrSpaceCast(
-            cast<llvm::Constant>(&*List[i]), CGM.Int8PtrTy);
-  }
-
-  if (UsedArray.empty())
-    return;
-  llvm::ArrayType *ATy = llvm::ArrayType::get(CGM.Int8PtrTy, UsedArray.size());
-
-  auto *GV = new llvm::GlobalVariable(
-      CGM.getModule(), ATy, false, llvm::GlobalValue::AppendingLinkage,
-      llvm::ConstantArray::get(ATy, UsedArray), Name);
-
-  GV->setSection("llvm.metadata");
-}
-
-void CodeGenModule::emitLLVMUsed() {
-  emitUsed(*this, "llvm.used", LLVMUsed);
-  emitUsed(*this, "llvm.compiler.used", LLVMCompilerUsed);
-}
-
-void CodeGenModule::AppendLinkerOptions(StringRef Opts) {
-  auto *MDOpts = llvm::MDString::get(getLLVMContext(), Opts);
-  LinkerOptionsMetadata.push_back(llvm::MDNode::get(getLLVMContext(), MDOpts));
-}
-
-void CodeGenModule::AddDetectMismatch(StringRef Name, StringRef Value) {
-  llvm::SmallString<32> Opt;
-  getTargetCodeGenInfo().getDetectMismatchOption(Name, Value, Opt);
-  auto *MDOpts = llvm::MDString::get(getLLVMContext(), Opt);
-  LinkerOptionsMetadata.push_back(llvm::MDNode::get(getLLVMContext(), MDOpts));
-}
-
-void CodeGenModule::AddDependentLib(StringRef Lib) {
-  auto &C = getLLVMContext();
-  if (getTarget().getTriple().isOSBinFormatELF()) {
-      ELFDependentLibraries.push_back(
-        llvm::MDNode::get(C, llvm::MDString::get(C, Lib)));
-    return;
-  }
-
-  llvm::SmallString<24> Opt;
-  getTargetCodeGenInfo().getDependentLibraryOption(Lib, Opt);
-  auto *MDOpts = llvm::MDString::get(getLLVMContext(), Opt);
-  LinkerOptionsMetadata.push_back(llvm::MDNode::get(C, MDOpts));
-}
-
-/// Add link options implied by the given module, including modules
-/// it depends on, using a postorder walk.
-static void addLinkOptionsPostorder(CodeGenModule &CGM, Module *Mod,
-                                    SmallVectorImpl<llvm::MDNode *> &Metadata,
-                                    llvm::SmallPtrSet<Module *, 16> &Visited) {
-  // Import this module's parent.
-  if (Mod->Parent && Visited.insert(Mod->Parent).second) {
-    addLinkOptionsPostorder(CGM, Mod->Parent, Metadata, Visited);
-  }
-
-  // Import this module's dependencies.
-  for (unsigned I = Mod->Imports.size(); I > 0; --I) {
-    if (Visited.insert(Mod->Imports[I - 1]).second)
-      addLinkOptionsPostorder(CGM, Mod->Imports[I-1], Metadata, Visited);
-  }
-
-  // Add linker options to link against the libraries/frameworks
-  // described by this module.
-  llvm::LLVMContext &Context = CGM.getLLVMContext();
-  bool IsELF = CGM.getTarget().getTriple().isOSBinFormatELF();
-
-  // For modules that use export_as for linking, use that module
-  // name instead.
-  if (Mod->UseExportAsModuleLinkName)
-    return;
-
-  for (unsigned I = Mod->LinkLibraries.size(); I > 0; --I) {
-    // Link against a framework.  Frameworks are currently Darwin only, so we
-    // don't to ask TargetCodeGenInfo for the spelling of the linker option.
-    if (Mod->LinkLibraries[I-1].IsFramework) {
-      llvm::Metadata *Args[2] = {
-          llvm::MDString::get(Context, "-framework"),
-          llvm::MDString::get(Context, Mod->LinkLibraries[I - 1].Library)};
-
-      Metadata.push_back(llvm::MDNode::get(Context, Args));
-      continue;
-    }
-
-    // Link against a library.
-    if (IsELF) {
-      llvm::Metadata *Args[2] = {
-          llvm::MDString::get(Context, "lib"),
-          llvm::MDString::get(Context, Mod->LinkLibraries[I - 1].Library),
-      };
-      Metadata.push_back(llvm::MDNode::get(Context, Args));
-    } else {
-      llvm::SmallString<24> Opt;
-      CGM.getTargetCodeGenInfo().getDependentLibraryOption(
-          Mod->LinkLibraries[I - 1].Library, Opt);
-      auto *OptString = llvm::MDString::get(Context, Opt);
-      Metadata.push_back(llvm::MDNode::get(Context, OptString));
-    }
-  }
-}
-
-void CodeGenModule::EmitModuleLinkOptions() {
-  // Collect the set of all of the modules we want to visit to emit link
-  // options, which is essentially the imported modules and all of their
-  // non-explicit child modules.
-  llvm::SetVector<clang::Module *> LinkModules;
-  llvm::SmallPtrSet<clang::Module *, 16> Visited;
-  SmallVector<clang::Module *, 16> Stack;
-
-  // Seed the stack with imported modules.
-  for (Module *M : ImportedModules) {
-    // Do not add any link flags when an implementation TU of a module imports
-    // a header of that same module.
-    if (M->getTopLevelModuleName() == getLangOpts().CurrentModule &&
-        !getLangOpts().isCompilingModule())
-      continue;
-    if (Visited.insert(M).second)
-      Stack.push_back(M);
-  }
-
-  // Find all of the modules to import, making a little effort to prune
-  // non-leaf modules.
-  while (!Stack.empty()) {
-    clang::Module *Mod = Stack.pop_back_val();
-
-    bool AnyChildren = false;
-
-    // Visit the submodules of this module.
-    for (const auto &SM : Mod->submodules()) {
-      // Skip explicit children; they need to be explicitly imported to be
-      // linked against.
-      if (SM->IsExplicit)
-        continue;
-
-      if (Visited.insert(SM).second) {
-        Stack.push_back(SM);
-        AnyChildren = true;
-      }
-    }
-
-    // We didn't find any children, so add this module to the list of
-    // modules to link against.
-    if (!AnyChildren) {
-      LinkModules.insert(Mod);
-    }
-  }
-
-  // Add link options for all of the imported modules in reverse topological
-  // order.  We don't do anything to try to order import link flags with respect
-  // to linker options inserted by things like #pragma comment().
-  SmallVector<llvm::MDNode *, 16> MetadataArgs;
-  Visited.clear();
-  for (Module *M : LinkModules)
-    if (Visited.insert(M).second)
-      addLinkOptionsPostorder(*this, M, MetadataArgs, Visited);
-  std::reverse(MetadataArgs.begin(), MetadataArgs.end());
-  LinkerOptionsMetadata.append(MetadataArgs.begin(), MetadataArgs.end());
-
-  // Add the linker options metadata flag.
-  auto *NMD = getModule().getOrInsertNamedMetadata("llvm.linker.options");
-  for (auto *MD : LinkerOptionsMetadata)
-    NMD->addOperand(MD);
-}
-
-void CodeGenModule::EmitDeferred() {
-  // Emit deferred declare target declarations.
-  if (getLangOpts().OpenMP && !getLangOpts().OpenMPSimd)
-    getOpenMPRuntime().emitDeferredTargetDecls();
-
-  // Emit code for any potentially referenced deferred decls.  Since a
-  // previously unused static decl may become used during the generation of code
-  // for a static function, iterate until no changes are made.
-
-  if (!DeferredVTables.empty()) {
-    EmitDeferredVTables();
-
-    // Emitting a vtable doesn't directly cause more vtables to
-    // become deferred, although it can cause functions to be
-    // emitted that then need those vtables.
-    assert(DeferredVTables.empty());
-  }
-
-  // Stop if we're out of both deferred vtables and deferred declarations.
-  if (DeferredDeclsToEmit.empty())
-    return;
-
-  // Grab the list of decls to emit. If EmitGlobalDefinition schedules more
-  // work, it will not interfere with this.
-  std::vector<GlobalDecl> CurDeclsToEmit;
-  CurDeclsToEmit.swap(DeferredDeclsToEmit);
-
-  for (GlobalDecl &D : CurDeclsToEmit) {
-    // We should call GetAddrOfGlobal with IsForDefinition set to true in order
-    // to get GlobalValue with exactly the type we need, not something that
-    // might had been created for another decl with the same mangled name but
-    // different type.
-    llvm::GlobalValue *GV = dyn_cast<llvm::GlobalValue>(
-        GetAddrOfGlobal(D, ForDefinition));
-
-    // In case of different address spaces, we may still get a cast, even with
-    // IsForDefinition equal to true. Query mangled names table to get
-    // GlobalValue.
-    if (!GV)
-      GV = GetGlobalValue(getMangledName(D));
-
-    // Make sure GetGlobalValue returned non-null.
-    assert(GV);
-
-    // Check to see if we've already emitted this.  This is necessary
-    // for a couple of reasons: first, decls can end up in the
-    // deferred-decls queue multiple times, and second, decls can end
-    // up with definitions in unusual ways (e.g. by an extern inline
-    // function acquiring a strong function redefinition).  Just
-    // ignore these cases.
-    if (!GV->isDeclaration())
-      continue;
-
-    // Otherwise, emit the definition and move on to the next one.
-    EmitGlobalDefinition(D, GV);
-
-    // If we found out that we need to emit more decls, do that recursively.
-    // This has the advantage that the decls are emitted in a DFS and related
-    // ones are close together, which is convenient for testing.
-    if (!DeferredVTables.empty() || !DeferredDeclsToEmit.empty()) {
-      EmitDeferred();
-      assert(DeferredVTables.empty() && DeferredDeclsToEmit.empty());
-    }
-  }
-}
-
-void CodeGenModule::EmitVTablesOpportunistically() {
-  // Try to emit external vtables as available_externally if they have emitted
-  // all inlined virtual functions.  It runs after EmitDeferred() and therefore
-  // is not allowed to create new references to things that need to be emitted
-  // lazily. Note that it also uses fact that we eagerly emitting RTTI.
-
-  assert((OpportunisticVTables.empty() || shouldOpportunisticallyEmitVTables())
-         && "Only emit opportunistic vtables with optimizations");
-
-  for (const CXXRecordDecl *RD : OpportunisticVTables) {
-    assert(getVTables().isVTableExternal(RD) &&
-           "This queue should only contain external vtables");
-    if (getCXXABI().canSpeculativelyEmitVTable(RD))
-      VTables.GenerateClassData(RD);
-  }
-  OpportunisticVTables.clear();
-}
-
-void CodeGenModule::EmitGlobalAnnotations() {
-  if (Annotations.empty())
-    return;
-
-  // Create a new global variable for the ConstantStruct in the Module.
-  llvm::Constant *Array = llvm::ConstantArray::get(llvm::ArrayType::get(
-    Annotations[0]->getType(), Annotations.size()), Annotations);
-  auto *gv = new llvm::GlobalVariable(getModule(), Array->getType(), false,
-                                      llvm::GlobalValue::AppendingLinkage,
-                                      Array, "llvm.global.annotations");
-  gv->setSection(AnnotationSection);
-}
-
-llvm::Constant *CodeGenModule::EmitAnnotationString(StringRef Str) {
-  llvm::Constant *&AStr = AnnotationStrings[Str];
-  if (AStr)
-    return AStr;
-
-  // Not found yet, create a new global.
-  llvm::Constant *s = llvm::ConstantDataArray::getString(getLLVMContext(), Str);
-  auto *gv =
-      new llvm::GlobalVariable(getModule(), s->getType(), true,
-                               llvm::GlobalValue::PrivateLinkage, s, ".str");
-  gv->setSection(AnnotationSection);
-  gv->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-  AStr = gv;
-  return gv;
-}
-
-llvm::Constant *CodeGenModule::EmitAnnotationUnit(SourceLocation Loc) {
-  SourceManager &SM = getContext().getSourceManager();
-  PresumedLoc PLoc = SM.getPresumedLoc(Loc);
-  if (PLoc.isValid())
-    return EmitAnnotationString(PLoc.getFilename());
-  return EmitAnnotationString(SM.getBufferName(Loc));
-}
-
-llvm::Constant *CodeGenModule::EmitAnnotationLineNo(SourceLocation L) {
-  SourceManager &SM = getContext().getSourceManager();
-  PresumedLoc PLoc = SM.getPresumedLoc(L);
-  unsigned LineNo = PLoc.isValid() ? PLoc.getLine() :
-    SM.getExpansionLineNumber(L);
-  return llvm::ConstantInt::get(Int32Ty, LineNo);
-}
-
-llvm::Constant *CodeGenModule::EmitAnnotateAttr(llvm::GlobalValue *GV,
-                                                const AnnotateAttr *AA,
-                                                SourceLocation L) {
-  // Get the globals for file name, annotation, and the line number.
-  llvm::Constant *AnnoGV = EmitAnnotationString(AA->getAnnotation()),
-                 *UnitGV = EmitAnnotationUnit(L),
-                 *LineNoCst = EmitAnnotationLineNo(L);
-
-  // Create the ConstantStruct for the global annotation.
-  llvm::Constant *Fields[4] = {
-    llvm::ConstantExpr::getBitCast(GV, Int8PtrTy),
-    llvm::ConstantExpr::getBitCast(AnnoGV, Int8PtrTy),
-    llvm::ConstantExpr::getBitCast(UnitGV, Int8PtrTy),
-    LineNoCst
-  };
-  return llvm::ConstantStruct::getAnon(Fields);
-}
-
-void CodeGenModule::AddGlobalAnnotations(const ValueDecl *D,
-                                         llvm::GlobalValue *GV) {
-  assert(D->hasAttr<AnnotateAttr>() && "no annotate attribute");
-  // Get the struct elements for these annotations.
-  for (const auto *I : D->specific_attrs<AnnotateAttr>())
-    Annotations.push_back(EmitAnnotateAttr(GV, I, D->getLocation()));
-}
-
-bool CodeGenModule::isInSanitizerBlacklist(SanitizerMask Kind,
-                                           llvm::Function *Fn,
-                                           SourceLocation Loc) const {
-  const auto &SanitizerBL = getContext().getSanitizerBlacklist();
-  // Blacklist by function name.
-  if (SanitizerBL.isBlacklistedFunction(Kind, Fn->getName()))
-    return true;
-  // Blacklist by location.
-  if (Loc.isValid())
-    return SanitizerBL.isBlacklistedLocation(Kind, Loc);
-  // If location is unknown, this may be a compiler-generated function. Assume
-  // it's located in the main file.
-  auto &SM = Context.getSourceManager();
-  if (const auto *MainFile = SM.getFileEntryForID(SM.getMainFileID())) {
-    return SanitizerBL.isBlacklistedFile(Kind, MainFile->getName());
-  }
-  return false;
-}
-
-bool CodeGenModule::isInSanitizerBlacklist(llvm::GlobalVariable *GV,
-                                           SourceLocation Loc, QualType Ty,
-                                           StringRef Category) const {
-  // For now globals can be blacklisted only in ASan and KASan.
-  const SanitizerMask EnabledAsanMask =
-      LangOpts.Sanitize.Mask &
-      (SanitizerKind::Address | SanitizerKind::KernelAddress |
-       SanitizerKind::HWAddress | SanitizerKind::KernelHWAddress |
-       SanitizerKind::MemTag);
-  if (!EnabledAsanMask)
-    return false;
-  const auto &SanitizerBL = getContext().getSanitizerBlacklist();
-  if (SanitizerBL.isBlacklistedGlobal(EnabledAsanMask, GV->getName(), Category))
-    return true;
-  if (SanitizerBL.isBlacklistedLocation(EnabledAsanMask, Loc, Category))
-    return true;
-  // Check global type.
-  if (!Ty.isNull()) {
-    // Drill down the array types: if global variable of a fixed type is
-    // blacklisted, we also don't instrument arrays of them.
-    while (auto AT = dyn_cast<ArrayType>(Ty.getTypePtr()))
-      Ty = AT->getElementType();
-    Ty = Ty.getCanonicalType().getUnqualifiedType();
-    // We allow to blacklist only record types (classes, structs etc.)
-    if (Ty->isRecordType()) {
-      std::string TypeStr = Ty.getAsString(getContext().getPrintingPolicy());
-      if (SanitizerBL.isBlacklistedType(EnabledAsanMask, TypeStr, Category))
-        return true;
-    }
-  }
-  return false;
-}
-
-bool CodeGenModule::imbueXRayAttrs(llvm::Function *Fn, SourceLocation Loc,
-                                   StringRef Category) const {
-  const auto &XRayFilter = getContext().getXRayFilter();
-  using ImbueAttr = XRayFunctionFilter::ImbueAttribute;
-  auto Attr = ImbueAttr::NONE;
-  if (Loc.isValid())
-    Attr = XRayFilter.shouldImbueLocation(Loc, Category);
-  if (Attr == ImbueAttr::NONE)
-    Attr = XRayFilter.shouldImbueFunction(Fn->getName());
-  switch (Attr) {
-  case ImbueAttr::NONE:
-    return false;
-  case ImbueAttr::ALWAYS:
-    Fn->addFnAttr("function-instrument", "xray-always");
-    break;
-  case ImbueAttr::ALWAYS_ARG1:
-    Fn->addFnAttr("function-instrument", "xray-always");
-    Fn->addFnAttr("xray-log-args", "1");
-    break;
-  case ImbueAttr::NEVER:
-    Fn->addFnAttr("function-instrument", "xray-never");
-    break;
-  }
-  return true;
-}
-
-bool CodeGenModule::MustBeEmitted(const ValueDecl *Global) {
-  // Never defer when EmitAllDecls is specified.
-  if (LangOpts.EmitAllDecls)
-    return true;
-
-  if (CodeGenOpts.KeepStaticConsts) {
-    const auto *VD = dyn_cast<VarDecl>(Global);
-    if (VD && VD->getType().isConstQualified() &&
-        VD->getStorageDuration() == SD_Static)
-      return true;
-  }
-
-  return getContext().DeclMustBeEmitted(Global);
-}
-
-bool CodeGenModule::MayBeEmittedEagerly(const ValueDecl *Global) {
-  if (const auto *FD = dyn_cast<FunctionDecl>(Global))
-    if (FD->getTemplateSpecializationKind() == TSK_ImplicitInstantiation)
-      // Implicit template instantiations may change linkage if they are later
-      // explicitly instantiated, so they should not be emitted eagerly.
-      return false;
-  if (const auto *VD = dyn_cast<VarDecl>(Global))
-    if (Context.getInlineVariableDefinitionKind(VD) ==
-        ASTContext::InlineVariableDefinitionKind::WeakUnknown)
-      // A definition of an inline constexpr static data member may change
-      // linkage later if it's redeclared outside the class.
-      return false;
-  // If OpenMP is enabled and threadprivates must be generated like TLS, delay
-  // codegen for global variables, because they may be marked as threadprivate.
-  if (LangOpts.OpenMP && LangOpts.OpenMPUseTLS &&
-      getContext().getTargetInfo().isTLSSupported() && isa<VarDecl>(Global) &&
-      !isTypeConstant(Global->getType(), false) &&
-      !OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(Global))
-    return false;
-
-  return true;
-}
-
-ConstantAddress CodeGenModule::GetAddrOfUuidDescriptor(
-    const CXXUuidofExpr* E) {
-  // Sema has verified that IIDSource has a __declspec(uuid()), and that its
-  // well-formed.
-  StringRef Uuid = E->getUuidStr();
-  std::string Name = "_GUID_" + Uuid.lower();
-  std::replace(Name.begin(), Name.end(), '-', '_');
-
-  // The UUID descriptor should be pointer aligned.
-  CharUnits Alignment = CharUnits::fromQuantity(PointerAlignInBytes);
-
-  // Look for an existing global.
-  if (llvm::GlobalVariable *GV = getModule().getNamedGlobal(Name))
-    return ConstantAddress(GV, Alignment);
-
-  llvm::Constant *Init = EmitUuidofInitializer(Uuid);
-  assert(Init && "failed to initialize as constant");
-
-  auto *GV = new llvm::GlobalVariable(
-      getModule(), Init->getType(),
-      /*isConstant=*/true, llvm::GlobalValue::LinkOnceODRLinkage, Init, Name);
-  if (supportsCOMDAT())
-    GV->setComdat(TheModule.getOrInsertComdat(GV->getName()));
-  setDSOLocal(GV);
-  return ConstantAddress(GV, Alignment);
-}
-
-ConstantAddress CodeGenModule::GetWeakRefReference(const ValueDecl *VD) {
-  const AliasAttr *AA = VD->getAttr<AliasAttr>();
-  assert(AA && "No alias?");
-
-  CharUnits Alignment = getContext().getDeclAlign(VD);
-  llvm::Type *DeclTy = getTypes().ConvertTypeForMem(VD->getType());
-
-  // See if there is already something with the target's name in the module.
-  llvm::GlobalValue *Entry = GetGlobalValue(AA->getAliasee());
-  if (Entry) {
-    unsigned AS = getContext().getTargetAddressSpace(VD->getType());
-    auto Ptr = llvm::ConstantExpr::getBitCast(Entry, DeclTy->getPointerTo(AS));
-    return ConstantAddress(Ptr, Alignment);
-  }
-
-  llvm::Constant *Aliasee;
-  if (isa<llvm::FunctionType>(DeclTy))
-    Aliasee = GetOrCreateLLVMFunction(AA->getAliasee(), DeclTy,
-                                      GlobalDecl(cast<FunctionDecl>(VD)),
-                                      /*ForVTable=*/false);
-  else
-    Aliasee = GetOrCreateLLVMGlobal(AA->getAliasee(),
-                                    llvm::PointerType::getUnqual(DeclTy),
-                                    nullptr);
-
-  auto *F = cast<llvm::GlobalValue>(Aliasee);
-  F->setLinkage(llvm::Function::ExternalWeakLinkage);
-  WeakRefReferences.insert(F);
-
-  return ConstantAddress(Aliasee, Alignment);
-}
-
-void CodeGenModule::EmitGlobal(GlobalDecl GD) {
-  const auto *Global = cast<ValueDecl>(GD.getDecl());
-
-  // Weak references don't produce any output by themselves.
-  if (Global->hasAttr<WeakRefAttr>())
-    return;
-
-  // If this is an alias definition (which otherwise looks like a declaration)
-  // emit it now.
-  if (Global->hasAttr<AliasAttr>())
-    return EmitAliasDefinition(GD);
-
-  // IFunc like an alias whose value is resolved at runtime by calling resolver.
-  if (Global->hasAttr<IFuncAttr>())
-    return emitIFuncDefinition(GD);
-
-  // If this is a cpu_dispatch multiversion function, emit the resolver.
-  if (Global->hasAttr<CPUDispatchAttr>())
-    return emitCPUDispatchDefinition(GD);
-
-  // If this is CUDA, be selective about which declarations we emit.
-  if (LangOpts.CUDA) {
-    if (LangOpts.CUDAIsDevice) {
-      if (!Global->hasAttr<CUDADeviceAttr>() &&
-          !Global->hasAttr<CUDAGlobalAttr>() &&
-          !Global->hasAttr<CUDAConstantAttr>() &&
-          !Global->hasAttr<CUDASharedAttr>() &&
-          !(LangOpts.HIP && Global->hasAttr<HIPPinnedShadowAttr>()))
-        return;
-    } else {
-      // We need to emit host-side 'shadows' for all global
-      // device-side variables because the CUDA runtime needs their
-      // size and host-side address in order to provide access to
-      // their device-side incarnations.
-
-      // So device-only functions are the only things we skip.
-      if (isa<FunctionDecl>(Global) && !Global->hasAttr<CUDAHostAttr>() &&
-          Global->hasAttr<CUDADeviceAttr>())
-        return;
-
-      assert((isa<FunctionDecl>(Global) || isa<VarDecl>(Global)) &&
-             "Expected Variable or Function");
-    }
-  }
-
-  if (LangOpts.OpenMP) {
-    // If this is OpenMP device, check if it is legal to emit this global
-    // normally.
-    if (OpenMPRuntime && OpenMPRuntime->emitTargetGlobal(GD))
-      return;
-    if (auto *DRD = dyn_cast<OMPDeclareReductionDecl>(Global)) {
-      if (MustBeEmitted(Global))
-        EmitOMPDeclareReduction(DRD);
-      return;
-    } else if (auto *DMD = dyn_cast<OMPDeclareMapperDecl>(Global)) {
-      if (MustBeEmitted(Global))
-        EmitOMPDeclareMapper(DMD);
-      return;
-    }
-  }
-
-  // Ignore declarations, they will be emitted on their first use.
-  if (const auto *FD = dyn_cast<FunctionDecl>(Global)) {
-    // Forward declarations are emitted lazily on first use.
-    if (!FD->doesThisDeclarationHaveABody()) {
-      if (!FD->doesDeclarationForceExternallyVisibleDefinition())
-        return;
-
-      StringRef MangledName = getMangledName(GD);
-
-      // Compute the function info and LLVM type.
-      const CGFunctionInfo &FI = getTypes().arrangeGlobalDeclaration(GD);
-      llvm::Type *Ty = getTypes().GetFunctionType(FI);
-
-      GetOrCreateLLVMFunction(MangledName, Ty, GD, /*ForVTable=*/false,
-                              /*DontDefer=*/false);
-      return;
-    }
-  } else {
-    const auto *VD = cast<VarDecl>(Global);
-    assert(VD->isFileVarDecl() && "Cannot emit local var decl as global.");
-    if (VD->isThisDeclarationADefinition() != VarDecl::Definition &&
-        !Context.isMSStaticDataMemberInlineDefinition(VD)) {
-      if (LangOpts.OpenMP) {
-        // Emit declaration of the must-be-emitted declare target variable.
-        if (llvm::Optional<OMPDeclareTargetDeclAttr::MapTypeTy> Res =
-                OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD)) {
-          bool UnifiedMemoryEnabled =
-              getOpenMPRuntime().hasRequiresUnifiedSharedMemory();
-          if (*Res == OMPDeclareTargetDeclAttr::MT_To &&
-              !UnifiedMemoryEnabled) {
-            (void)GetAddrOfGlobalVar(VD);
-          } else {
-            assert(((*Res == OMPDeclareTargetDeclAttr::MT_Link) ||
-                    (*Res == OMPDeclareTargetDeclAttr::MT_To &&
-                     UnifiedMemoryEnabled)) &&
-                   "Link clause or to clause with unified memory expected.");
-            (void)getOpenMPRuntime().getAddrOfDeclareTargetVar(VD);
-          }
-
-          return;
-        }
-      }
-      // If this declaration may have caused an inline variable definition to
-      // change linkage, make sure that it's emitted.
-      if (Context.getInlineVariableDefinitionKind(VD) ==
-          ASTContext::InlineVariableDefinitionKind::Strong)
-        GetAddrOfGlobalVar(VD);
-      return;
-    }
-  }
-
-  // Defer code generation to first use when possible, e.g. if this is an inline
-  // function. If the global must always be emitted, do it eagerly if possible
-  // to benefit from cache locality.
-  if (MustBeEmitted(Global) && MayBeEmittedEagerly(Global)) {
-    // Emit the definition if it can't be deferred.
-    EmitGlobalDefinition(GD);
-    return;
-  }
-
-  // If we're deferring emission of a C++ variable with an
-  // initializer, remember the order in which it appeared in the file.
-  if (getLangOpts().CPlusPlus && isa<VarDecl>(Global) &&
-      cast<VarDecl>(Global)->hasInit()) {
-    DelayedCXXInitPosition[Global] = CXXGlobalInits.size();
-    CXXGlobalInits.push_back(nullptr);
-  }
-
-  StringRef MangledName = getMangledName(GD);
-  if (GetGlobalValue(MangledName) != nullptr) {
-    // The value has already been used and should therefore be emitted.
-    addDeferredDeclToEmit(GD);
-  } else if (MustBeEmitted(Global)) {
-    // The value must be emitted, but cannot be emitted eagerly.
-    assert(!MayBeEmittedEagerly(Global));
-    addDeferredDeclToEmit(GD);
-  } else {
-    // Otherwise, remember that we saw a deferred decl with this name.  The
-    // first use of the mangled name will cause it to move into
-    // DeferredDeclsToEmit.
-    DeferredDecls[MangledName] = GD;
-  }
-}
-
-// Check if T is a class type with a destructor that's not dllimport.
-static bool HasNonDllImportDtor(QualType T) {
-  if (const auto *RT = T->getBaseElementTypeUnsafe()->getAs<RecordType>())
-    if (CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(RT->getDecl()))
-      if (RD->getDestructor() && !RD->getDestructor()->hasAttr<DLLImportAttr>())
-        return true;
-
-  return false;
-}
-
-namespace {
-  struct FunctionIsDirectlyRecursive
-      : public ConstStmtVisitor<FunctionIsDirectlyRecursive, bool> {
-    const StringRef Name;
-    const Builtin::Context &BI;
-    FunctionIsDirectlyRecursive(StringRef N, const Builtin::Context &C)
-        : Name(N), BI(C) {}
-
-    bool VisitCallExpr(const CallExpr *E) {
-      const FunctionDecl *FD = E->getDirectCallee();
-      if (!FD)
-        return false;
-      AsmLabelAttr *Attr = FD->getAttr<AsmLabelAttr>();
-      if (Attr && Name == Attr->getLabel())
-        return true;
-      unsigned BuiltinID = FD->getBuiltinID();
-      if (!BuiltinID || !BI.isLibFunction(BuiltinID))
-        return false;
-      StringRef BuiltinName = BI.getName(BuiltinID);
-      if (BuiltinName.startswith("__builtin_") &&
-          Name == BuiltinName.slice(strlen("__builtin_"), StringRef::npos)) {
-        return true;
-      }
-      return false;
-    }
-
-    bool VisitStmt(const Stmt *S) {
-      for (const Stmt *Child : S->children())
-        if (Child && this->Visit(Child))
-          return true;
-      return false;
-    }
-  };
-
-  // Make sure we're not referencing non-imported vars or functions.
-  struct DLLImportFunctionVisitor
-      : public RecursiveASTVisitor<DLLImportFunctionVisitor> {
-    bool SafeToInline = true;
-
-    bool shouldVisitImplicitCode() const { return true; }
-
-    bool VisitVarDecl(VarDecl *VD) {
-      if (VD->getTLSKind()) {
-        // A thread-local variable cannot be imported.
-        SafeToInline = false;
-        return SafeToInline;
-      }
-
-      // A variable definition might imply a destructor call.
-      if (VD->isThisDeclarationADefinition())
-        SafeToInline = !HasNonDllImportDtor(VD->getType());
-
-      return SafeToInline;
-    }
-
-    bool VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
-      if (const auto *D = E->getTemporary()->getDestructor())
-        SafeToInline = D->hasAttr<DLLImportAttr>();
-      return SafeToInline;
-    }
-
-    bool VisitDeclRefExpr(DeclRefExpr *E) {
-      ValueDecl *VD = E->getDecl();
-      if (isa<FunctionDecl>(VD))
-        SafeToInline = VD->hasAttr<DLLImportAttr>();
-      else if (VarDecl *V = dyn_cast<VarDecl>(VD))
-        SafeToInline = !V->hasGlobalStorage() || V->hasAttr<DLLImportAttr>();
-      return SafeToInline;
-    }
-
-    bool VisitCXXConstructExpr(CXXConstructExpr *E) {
-      SafeToInline = E->getConstructor()->hasAttr<DLLImportAttr>();
-      return SafeToInline;
-    }
-
-    bool VisitCXXMemberCallExpr(CXXMemberCallExpr *E) {
-      CXXMethodDecl *M = E->getMethodDecl();
-      if (!M) {
-        // Call through a pointer to member function. This is safe to inline.
-        SafeToInline = true;
-      } else {
-        SafeToInline = M->hasAttr<DLLImportAttr>();
-      }
-      return SafeToInline;
-    }
-
-    bool VisitCXXDeleteExpr(CXXDeleteExpr *E) {
-      SafeToInline = E->getOperatorDelete()->hasAttr<DLLImportAttr>();
-      return SafeToInline;
-    }
-
-    bool VisitCXXNewExpr(CXXNewExpr *E) {
-      SafeToInline = E->getOperatorNew()->hasAttr<DLLImportAttr>();
-      return SafeToInline;
-    }
-  };
-}
-
-// isTriviallyRecursive - Check if this function calls another
-// decl that, because of the asm attribute or the other decl being a builtin,
-// ends up pointing to itself.
-bool
-CodeGenModule::isTriviallyRecursive(const FunctionDecl *FD) {
-  StringRef Name;
-  if (getCXXABI().getMangleContext().shouldMangleDeclName(FD)) {
-    // asm labels are a special kind of mangling we have to support.
-    AsmLabelAttr *Attr = FD->getAttr<AsmLabelAttr>();
-    if (!Attr)
-      return false;
-    Name = Attr->getLabel();
-  } else {
-    Name = FD->getName();
-  }
-
-  FunctionIsDirectlyRecursive Walker(Name, Context.BuiltinInfo);
-  const Stmt *Body = FD->getBody();
-  return Body ? Walker.Visit(Body) : false;
-}
-
-bool CodeGenModule::shouldEmitFunction(GlobalDecl GD) {
-  if (getFunctionLinkage(GD) != llvm::Function::AvailableExternallyLinkage)
-    return true;
-  const auto *F = cast<FunctionDecl>(GD.getDecl());
-  if (CodeGenOpts.OptimizationLevel == 0 && !F->hasAttr<AlwaysInlineAttr>())
-    return false;
-
-  if (F->hasAttr<DLLImportAttr>()) {
-    // Check whether it would be safe to inline this dllimport function.
-    DLLImportFunctionVisitor Visitor;
-    Visitor.TraverseFunctionDecl(const_cast<FunctionDecl*>(F));
-    if (!Visitor.SafeToInline)
-      return false;
-
-    if (const CXXDestructorDecl *Dtor = dyn_cast<CXXDestructorDecl>(F)) {
-      // Implicit destructor invocations aren't captured in the AST, so the
-      // check above can't see them. Check for them manually here.
-      for (const Decl *Member : Dtor->getParent()->decls())
-        if (isa<FieldDecl>(Member))
-          if (HasNonDllImportDtor(cast<FieldDecl>(Member)->getType()))
-            return false;
-      for (const CXXBaseSpecifier &B : Dtor->getParent()->bases())
-        if (HasNonDllImportDtor(B.getType()))
-          return false;
-    }
-  }
-
-  // PR9614. Avoid cases where the source code is lying to us. An available
-  // externally function should have an equivalent function somewhere else,
-  // but a function that calls itself is clearly not equivalent to the real
-  // implementation.
-  // This happens in glibc's btowc and in some configure checks.
-  return !isTriviallyRecursive(F);
-}
-
-bool CodeGenModule::shouldOpportunisticallyEmitVTables() {
-  return CodeGenOpts.OptimizationLevel > 0;
-}
-
-void CodeGenModule::EmitMultiVersionFunctionDefinition(GlobalDecl GD,
-                                                       llvm::GlobalValue *GV) {
-  const auto *FD = cast<FunctionDecl>(GD.getDecl());
-
-  if (FD->isCPUSpecificMultiVersion()) {
-    auto *Spec = FD->getAttr<CPUSpecificAttr>();
-    for (unsigned I = 0; I < Spec->cpus_size(); ++I)
-      EmitGlobalFunctionDefinition(GD.getWithMultiVersionIndex(I), nullptr);
-    // Requires multiple emits.
-  } else
-    EmitGlobalFunctionDefinition(GD, GV);
-}
-
-void CodeGenModule::EmitGlobalDefinition(GlobalDecl GD, llvm::GlobalValue *GV) {
-  const auto *D = cast<ValueDecl>(GD.getDecl());
-
-  PrettyStackTraceDecl CrashInfo(const_cast<ValueDecl *>(D), D->getLocation(),
-                                 Context.getSourceManager(),
-                                 "Generating code for declaration");
-
-  if (const auto *FD = dyn_cast<FunctionDecl>(D)) {
-    // At -O0, don't generate IR for functions with available_externally
-    // linkage.
-    if (!shouldEmitFunction(GD))
-      return;
-
-    llvm::TimeTraceScope TimeScope("CodeGen Function", [&]() {
-      std::string Name;
-      llvm::raw_string_ostream OS(Name);
-      FD->getNameForDiagnostic(OS, getContext().getPrintingPolicy(),
-                               /*Qualified=*/true);
-      return Name;
-    });
-
-    if (const auto *Method = dyn_cast<CXXMethodDecl>(D)) {
-      // Make sure to emit the definition(s) before we emit the thunks.
-      // This is necessary for the generation of certain thunks.
-      if (isa<CXXConstructorDecl>(Method) || isa<CXXDestructorDecl>(Method))
-        ABI->emitCXXStructor(GD);
-      else if (FD->isMultiVersion())
-        EmitMultiVersionFunctionDefinition(GD, GV);
-      else
-        EmitGlobalFunctionDefinition(GD, GV);
-
-      if (Method->isVirtual())
-        getVTables().EmitThunks(GD);
-
-      return;
-    }
-
-    if (FD->isMultiVersion())
-      return EmitMultiVersionFunctionDefinition(GD, GV);
-    return EmitGlobalFunctionDefinition(GD, GV);
-  }
-
-  if (const auto *VD = dyn_cast<VarDecl>(D))
-    return EmitGlobalVarDefinition(VD, !VD->hasDefinition());
-
-  llvm_unreachable("Invalid argument to EmitGlobalDefinition()");
-}
-
-static void ReplaceUsesOfNonProtoTypeWithRealFunction(llvm::GlobalValue *Old,
-                                                      llvm::Function *NewFn);
-
-static unsigned
-TargetMVPriority(const TargetInfo &TI,
-                 const CodeGenFunction::MultiVersionResolverOption &RO) {
-  unsigned Priority = 0;
-  for (StringRef Feat : RO.Conditions.Features)
-    Priority = std::max(Priority, TI.multiVersionSortPriority(Feat));
-
-  if (!RO.Conditions.Architecture.empty())
-    Priority = std::max(
-        Priority, TI.multiVersionSortPriority(RO.Conditions.Architecture));
-  return Priority;
-}
-
-void CodeGenModule::emitMultiVersionFunctions() {
-  for (GlobalDecl GD : MultiVersionFuncs) {
-    SmallVector<CodeGenFunction::MultiVersionResolverOption, 10> Options;
-    const FunctionDecl *FD = cast<FunctionDecl>(GD.getDecl());
-    getContext().forEachMultiversionedFunctionVersion(
-        FD, [this, &GD, &Options](const FunctionDecl *CurFD) {
-          GlobalDecl CurGD{
-              (CurFD->isDefined() ? CurFD->getDefinition() : CurFD)};
-          StringRef MangledName = getMangledName(CurGD);
-          llvm::Constant *Func = GetGlobalValue(MangledName);
-          if (!Func) {
-            if (CurFD->isDefined()) {
-              EmitGlobalFunctionDefinition(CurGD, nullptr);
-              Func = GetGlobalValue(MangledName);
-            } else {
-              const CGFunctionInfo &FI =
-                  getTypes().arrangeGlobalDeclaration(GD);
-              llvm::FunctionType *Ty = getTypes().GetFunctionType(FI);
-              Func = GetAddrOfFunction(CurGD, Ty, /*ForVTable=*/false,
-                                       /*DontDefer=*/false, ForDefinition);
-            }
-            assert(Func && "This should have just been created");
-          }
-
-          const auto *TA = CurFD->getAttr<TargetAttr>();
-          llvm::SmallVector<StringRef, 8> Feats;
-          TA->getAddedFeatures(Feats);
-
-          Options.emplace_back(cast<llvm::Function>(Func),
-                               TA->getArchitecture(), Feats);
-        });
-
-    llvm::Function *ResolverFunc;
-    const TargetInfo &TI = getTarget();
-
-    if (TI.supportsIFunc() || FD->isTargetMultiVersion())
-      ResolverFunc = cast<llvm::Function>(
-          GetGlobalValue((getMangledName(GD) + ".resolver").str()));
-    else
-      ResolverFunc = cast<llvm::Function>(GetGlobalValue(getMangledName(GD)));
-
-    if (supportsCOMDAT())
-      ResolverFunc->setComdat(
-          getModule().getOrInsertComdat(ResolverFunc->getName()));
-
-    llvm::stable_sort(
-        Options, [&TI](const CodeGenFunction::MultiVersionResolverOption &LHS,
-                       const CodeGenFunction::MultiVersionResolverOption &RHS) {
-          return TargetMVPriority(TI, LHS) > TargetMVPriority(TI, RHS);
-        });
-    CodeGenFunction CGF(*this);
-    CGF.EmitMultiVersionResolver(ResolverFunc, Options);
-  }
-}
-
-void CodeGenModule::emitCPUDispatchDefinition(GlobalDecl GD) {
-  const auto *FD = cast<FunctionDecl>(GD.getDecl());
-  assert(FD && "Not a FunctionDecl?");
-  const auto *DD = FD->getAttr<CPUDispatchAttr>();
-  assert(DD && "Not a cpu_dispatch Function?");
-  llvm::Type *DeclTy = getTypes().ConvertType(FD->getType());
-
-  if (const auto *CXXFD = dyn_cast<CXXMethodDecl>(FD)) {
-    const CGFunctionInfo &FInfo = getTypes().arrangeCXXMethodDeclaration(CXXFD);
-    DeclTy = getTypes().GetFunctionType(FInfo);
-  }
-
-  StringRef ResolverName = getMangledName(GD);
-
-  llvm::Type *ResolverType;
-  GlobalDecl ResolverGD;
-  if (getTarget().supportsIFunc())
-    ResolverType = llvm::FunctionType::get(
-        llvm::PointerType::get(DeclTy,
-                               Context.getTargetAddressSpace(FD->getType())),
-        false);
-  else {
-    ResolverType = DeclTy;
-    ResolverGD = GD;
-  }
-
-  auto *ResolverFunc = cast<llvm::Function>(GetOrCreateLLVMFunction(
-      ResolverName, ResolverType, ResolverGD, /*ForVTable=*/false));
-
-  SmallVector<CodeGenFunction::MultiVersionResolverOption, 10> Options;
-  const TargetInfo &Target = getTarget();
-  unsigned Index = 0;
-  for (const IdentifierInfo *II : DD->cpus()) {
-    // Get the name of the target function so we can look it up/create it.
-    std::string MangledName = getMangledNameImpl(*this, GD, FD, true) +
-                              getCPUSpecificMangling(*this, II->getName());
-
-    llvm::Constant *Func = GetGlobalValue(MangledName);
-
-    if (!Func) {
-      GlobalDecl ExistingDecl = Manglings.lookup(MangledName);
-      if (ExistingDecl.getDecl() &&
-          ExistingDecl.getDecl()->getAsFunction()->isDefined()) {
-        EmitGlobalFunctionDefinition(ExistingDecl, nullptr);
-        Func = GetGlobalValue(MangledName);
-      } else {
-        if (!ExistingDecl.getDecl())
-          ExistingDecl = GD.getWithMultiVersionIndex(Index);
-
-      Func = GetOrCreateLLVMFunction(
-          MangledName, DeclTy, ExistingDecl,
-          /*ForVTable=*/false, /*DontDefer=*/true,
-          /*IsThunk=*/false, llvm::AttributeList(), ForDefinition);
-      }
-    }
-
-    llvm::SmallVector<StringRef, 32> Features;
-    Target.getCPUSpecificCPUDispatchFeatures(II->getName(), Features);
-    llvm::transform(Features, Features.begin(),
-                    [](StringRef Str) { return Str.substr(1); });
-    Features.erase(std::remove_if(
-        Features.begin(), Features.end(), [&Target](StringRef Feat) {
-          return !Target.validateCpuSupports(Feat);
-        }), Features.end());
-    Options.emplace_back(cast<llvm::Function>(Func), StringRef{}, Features);
-    ++Index;
-  }
-
-  llvm::sort(
-      Options, [](const CodeGenFunction::MultiVersionResolverOption &LHS,
-                  const CodeGenFunction::MultiVersionResolverOption &RHS) {
-        return CodeGenFunction::GetX86CpuSupportsMask(LHS.Conditions.Features) >
-               CodeGenFunction::GetX86CpuSupportsMask(RHS.Conditions.Features);
-      });
-
-  // If the list contains multiple 'default' versions, such as when it contains
-  // 'pentium' and 'generic', don't emit the call to the generic one (since we
-  // always run on at least a 'pentium'). We do this by deleting the 'least
-  // advanced' (read, lowest mangling letter).
-  while (Options.size() > 1 &&
-         CodeGenFunction::GetX86CpuSupportsMask(
-             (Options.end() - 2)->Conditions.Features) == 0) {
-    StringRef LHSName = (Options.end() - 2)->Function->getName();
-    StringRef RHSName = (Options.end() - 1)->Function->getName();
-    if (LHSName.compare(RHSName) < 0)
-      Options.erase(Options.end() - 2);
-    else
-      Options.erase(Options.end() - 1);
-  }
-
-  CodeGenFunction CGF(*this);
-  CGF.EmitMultiVersionResolver(ResolverFunc, Options);
-}
-
-/// If a dispatcher for the specified mangled name is not in the module, create
-/// and return an llvm Function with the specified type.
-llvm::Constant *CodeGenModule::GetOrCreateMultiVersionResolver(
-    GlobalDecl GD, llvm::Type *DeclTy, const FunctionDecl *FD) {
-  std::string MangledName =
-      getMangledNameImpl(*this, GD, FD, /*OmitMultiVersionMangling=*/true);
-
-  // Holds the name of the resolver, in ifunc mode this is the ifunc (which has
-  // a separate resolver).
-  std::string ResolverName = MangledName;
-  if (getTarget().supportsIFunc())
-    ResolverName += ".ifunc";
-  else if (FD->isTargetMultiVersion())
-    ResolverName += ".resolver";
-
-  // If this already exists, just return that one.
-  if (llvm::GlobalValue *ResolverGV = GetGlobalValue(ResolverName))
-    return ResolverGV;
-
-  // Since this is the first time we've created this IFunc, make sure
-  // that we put this multiversioned function into the list to be
-  // replaced later if necessary (target multiversioning only).
-  if (!FD->isCPUDispatchMultiVersion() && !FD->isCPUSpecificMultiVersion())
-    MultiVersionFuncs.push_back(GD);
-
-  if (getTarget().supportsIFunc()) {
-    llvm::Type *ResolverType = llvm::FunctionType::get(
-        llvm::PointerType::get(
-            DeclTy, getContext().getTargetAddressSpace(FD->getType())),
-        false);
-    llvm::Constant *Resolver = GetOrCreateLLVMFunction(
-        MangledName + ".resolver", ResolverType, GlobalDecl{},
-        /*ForVTable=*/false);
-    llvm::GlobalIFunc *GIF = llvm::GlobalIFunc::create(
-        DeclTy, 0, llvm::Function::ExternalLinkage, "", Resolver, &getModule());
-    GIF->setName(ResolverName);
-    SetCommonAttributes(FD, GIF);
-
-    return GIF;
-  }
-
-  llvm::Constant *Resolver = GetOrCreateLLVMFunction(
-      ResolverName, DeclTy, GlobalDecl{}, /*ForVTable=*/false);
-  assert(isa<llvm::GlobalValue>(Resolver) &&
-         "Resolver should be created for the first time");
-  SetCommonAttributes(FD, cast<llvm::GlobalValue>(Resolver));
-  return Resolver;
-}
-
-/// GetOrCreateLLVMFunction - If the specified mangled name is not in the
-/// module, create and return an llvm Function with the specified type. If there
-/// is something in the module with the specified name, return it potentially
-/// bitcasted to the right type.
-///
-/// If D is non-null, it specifies a decl that correspond to this.  This is used
-/// to set the attributes on the function when it is first created.
-llvm::Constant *CodeGenModule::GetOrCreateLLVMFunction(
-    StringRef MangledName, llvm::Type *Ty, GlobalDecl GD, bool ForVTable,
-    bool DontDefer, bool IsThunk, llvm::AttributeList ExtraAttrs,
-    ForDefinition_t IsForDefinition) {
-  const Decl *D = GD.getDecl();
-
-  // Any attempts to use a MultiVersion function should result in retrieving
-  // the iFunc instead. Name Mangling will handle the rest of the changes.
-  if (const FunctionDecl *FD = cast_or_null<FunctionDecl>(D)) {
-    // For the device mark the function as one that should be emitted.
-    if (getLangOpts().OpenMPIsDevice && OpenMPRuntime &&
-        !OpenMPRuntime->markAsGlobalTarget(GD) && FD->isDefined() &&
-        !DontDefer && !IsForDefinition) {
-      if (const FunctionDecl *FDDef = FD->getDefinition()) {
-        GlobalDecl GDDef;
-        if (const auto *CD = dyn_cast<CXXConstructorDecl>(FDDef))
-          GDDef = GlobalDecl(CD, GD.getCtorType());
-        else if (const auto *DD = dyn_cast<CXXDestructorDecl>(FDDef))
-          GDDef = GlobalDecl(DD, GD.getDtorType());
-        else
-          GDDef = GlobalDecl(FDDef);
-        EmitGlobal(GDDef);
-      }
-    }
-
-    if (FD->isMultiVersion()) {
-      const auto *TA = FD->getAttr<TargetAttr>();
-      if (TA && TA->isDefaultVersion())
-        UpdateMultiVersionNames(GD, FD);
-      if (!IsForDefinition)
-        return GetOrCreateMultiVersionResolver(GD, Ty, FD);
-    }
-  }
-
-  // Lookup the entry, lazily creating it if necessary.
-  llvm::GlobalValue *Entry = GetGlobalValue(MangledName);
-  if (Entry) {
-    if (WeakRefReferences.erase(Entry)) {
-      const FunctionDecl *FD = cast_or_null<FunctionDecl>(D);
-      if (FD && !FD->hasAttr<WeakAttr>())
-        Entry->setLinkage(llvm::Function::ExternalLinkage);
-    }
-
-    // Handle dropped DLL attributes.
-    if (D && !D->hasAttr<DLLImportAttr>() && !D->hasAttr<DLLExportAttr>()) {
-      Entry->setDLLStorageClass(llvm::GlobalValue::DefaultStorageClass);
-      setDSOLocal(Entry);
-    }
-
-    // If there are two attempts to define the same mangled name, issue an
-    // error.
-    if (IsForDefinition && !Entry->isDeclaration()) {
-      GlobalDecl OtherGD;
-      // Check that GD is not yet in DiagnosedConflictingDefinitions is required
-      // to make sure that we issue an error only once.
-      if (lookupRepresentativeDecl(MangledName, OtherGD) &&
-          (GD.getCanonicalDecl().getDecl() !=
-           OtherGD.getCanonicalDecl().getDecl()) &&
-          DiagnosedConflictingDefinitions.insert(GD).second) {
-        getDiags().Report(D->getLocation(), diag::err_duplicate_mangled_name)
-            << MangledName;
-        getDiags().Report(OtherGD.getDecl()->getLocation(),
-                          diag::note_previous_definition);
-      }
-    }
-
-    if ((isa<llvm::Function>(Entry) || isa<llvm::GlobalAlias>(Entry)) &&
-        (Entry->getType()->getElementType() == Ty)) {
-      return Entry;
-    }
-
-    // Make sure the result is of the correct type.
-    // (If function is requested for a definition, we always need to create a new
-    // function, not just return a bitcast.)
-    if (!IsForDefinition)
-      return llvm::ConstantExpr::getBitCast(Entry, Ty->getPointerTo());
-  }
-
-  // This function doesn't have a complete type (for example, the return
-  // type is an incomplete struct). Use a fake type instead, and make
-  // sure not to try to set attributes.
-  bool IsIncompleteFunction = false;
-
-  llvm::FunctionType *FTy;
-  if (isa<llvm::FunctionType>(Ty)) {
-    FTy = cast<llvm::FunctionType>(Ty);
-  } else {
-    FTy = llvm::FunctionType::get(VoidTy, false);
-    IsIncompleteFunction = true;
-  }
-
-  llvm::Function *F =
-      llvm::Function::Create(FTy, llvm::Function::ExternalLinkage,
-                             Entry ? StringRef() : MangledName, &getModule());
-
-  // If we already created a function with the same mangled name (but different
-  // type) before, take its name and add it to the list of functions to be
-  // replaced with F at the end of CodeGen.
-  //
-  // This happens if there is a prototype for a function (e.g. "int f()") and
-  // then a definition of a different type (e.g. "int f(int x)").
-  if (Entry) {
-    F->takeName(Entry);
-
-    // This might be an implementation of a function without a prototype, in
-    // which case, try to do special replacement of calls which match the new
-    // prototype.  The really key thing here is that we also potentially drop
-    // arguments from the call site so as to make a direct call, which makes the
-    // inliner happier and suppresses a number of optimizer warnings (!) about
-    // dropping arguments.
-    if (!Entry->use_empty()) {
-      ReplaceUsesOfNonProtoTypeWithRealFunction(Entry, F);
-      Entry->removeDeadConstantUsers();
-    }
-
-    llvm::Constant *BC = llvm::ConstantExpr::getBitCast(
-        F, Entry->getType()->getElementType()->getPointerTo());
-    addGlobalValReplacement(Entry, BC);
-  }
-
-  assert(F->getName() == MangledName && "name was uniqued!");
-  if (D)
-    SetFunctionAttributes(GD, F, IsIncompleteFunction, IsThunk);
-  if (ExtraAttrs.hasAttributes(llvm::AttributeList::FunctionIndex)) {
-    llvm::AttrBuilder B(ExtraAttrs, llvm::AttributeList::FunctionIndex);
-    F->addAttributes(llvm::AttributeList::FunctionIndex, B);
-  }
-
-  if (!DontDefer) {
-    // All MSVC dtors other than the base dtor are linkonce_odr and delegate to
-    // each other bottoming out with the base dtor.  Therefore we emit non-base
-    // dtors on usage, even if there is no dtor definition in the TU.
-    if (D && isa<CXXDestructorDecl>(D) &&
-        getCXXABI().useThunkForDtorVariant(cast<CXXDestructorDecl>(D),
-                                           GD.getDtorType()))
-      addDeferredDeclToEmit(GD);
-
-    // This is the first use or definition of a mangled name.  If there is a
-    // deferred decl with this name, remember that we need to emit it at the end
-    // of the file.
-    auto DDI = DeferredDecls.find(MangledName);
-    if (DDI != DeferredDecls.end()) {
-      // Move the potentially referenced deferred decl to the
-      // DeferredDeclsToEmit list, and remove it from DeferredDecls (since we
-      // don't need it anymore).
-      addDeferredDeclToEmit(DDI->second);
-      DeferredDecls.erase(DDI);
-
-      // Otherwise, there are cases we have to worry about where we're
-      // using a declaration for which we must emit a definition but where
-      // we might not find a top-level definition:
-      //   - member functions defined inline in their classes
-      //   - friend functions defined inline in some class
-      //   - special member functions with implicit definitions
-      // If we ever change our AST traversal to walk into class methods,
-      // this will be unnecessary.
-      //
-      // We also don't emit a definition for a function if it's going to be an
-      // entry in a vtable, unless it's already marked as used.
-    } else if (getLangOpts().CPlusPlus && D) {
-      // Look for a declaration that's lexically in a record.
-      for (const auto *FD = cast<FunctionDecl>(D)->getMostRecentDecl(); FD;
-           FD = FD->getPreviousDecl()) {
-        if (isa<CXXRecordDecl>(FD->getLexicalDeclContext())) {
-          if (FD->doesThisDeclarationHaveABody()) {
-            addDeferredDeclToEmit(GD.getWithDecl(FD));
-            break;
-          }
-        }
-      }
-    }
-  }
-
-  // Make sure the result is of the requested type.
-  if (!IsIncompleteFunction) {
-    assert(F->getType()->getElementType() == Ty);
-    return F;
-  }
-
-  llvm::Type *PTy = llvm::PointerType::getUnqual(Ty);
-  return llvm::ConstantExpr::getBitCast(F, PTy);
-}
-
-/// GetAddrOfFunction - Return the address of the given function.  If Ty is
-/// non-null, then this function will use the specified type if it has to
-/// create it (this occurs when we see a definition of the function).
-llvm::Constant *CodeGenModule::GetAddrOfFunction(GlobalDecl GD,
-                                                 llvm::Type *Ty,
-                                                 bool ForVTable,
-                                                 bool DontDefer,
-                                              ForDefinition_t IsForDefinition) {
-  // If there was no specific requested type, just convert it now.
-  if (!Ty) {
-    const auto *FD = cast<FunctionDecl>(GD.getDecl());
-    Ty = getTypes().ConvertType(FD->getType());
-  }
-
-  // Devirtualized destructor calls may come through here instead of via
-  // getAddrOfCXXStructor. Make sure we use the MS ABI base destructor instead
-  // of the complete destructor when necessary.
-  if (const auto *DD = dyn_cast<CXXDestructorDecl>(GD.getDecl())) {
-    if (getTarget().getCXXABI().isMicrosoft() &&
-        GD.getDtorType() == Dtor_Complete &&
-        DD->getParent()->getNumVBases() == 0)
-      GD = GlobalDecl(DD, Dtor_Base);
-  }
-
-  StringRef MangledName = getMangledName(GD);
-  return GetOrCreateLLVMFunction(MangledName, Ty, GD, ForVTable, DontDefer,
-                                 /*IsThunk=*/false, llvm::AttributeList(),
-                                 IsForDefinition);
-}
-
-static const FunctionDecl *
-GetRuntimeFunctionDecl(ASTContext &C, StringRef Name) {
-  TranslationUnitDecl *TUDecl = C.getTranslationUnitDecl();
-  DeclContext *DC = TranslationUnitDecl::castToDeclContext(TUDecl);
-
-  IdentifierInfo &CII = C.Idents.get(Name);
-  for (const auto &Result : DC->lookup(&CII))
-    if (const auto FD = dyn_cast<FunctionDecl>(Result))
-      return FD;
-
-  if (!C.getLangOpts().CPlusPlus)
-    return nullptr;
-
-  // Demangle the premangled name from getTerminateFn()
-  IdentifierInfo &CXXII =
-      (Name == "_ZSt9terminatev" || Name == "?terminate@@YAXXZ")
-          ? C.Idents.get("terminate")
-          : C.Idents.get(Name);
-
-  for (const auto &N : {"__cxxabiv1", "std"}) {
-    IdentifierInfo &NS = C.Idents.get(N);
-    for (const auto &Result : DC->lookup(&NS)) {
-      NamespaceDecl *ND = dyn_cast<NamespaceDecl>(Result);
-      if (auto LSD = dyn_cast<LinkageSpecDecl>(Result))
-        for (const auto &Result : LSD->lookup(&NS))
-          if ((ND = dyn_cast<NamespaceDecl>(Result)))
-            break;
-
-      if (ND)
-        for (const auto &Result : ND->lookup(&CXXII))
-          if (const auto *FD = dyn_cast<FunctionDecl>(Result))
-            return FD;
-    }
-  }
-
-  return nullptr;
-}
-
-/// CreateRuntimeFunction - Create a new runtime function with the specified
-/// type and name.
-llvm::FunctionCallee
-CodeGenModule::CreateRuntimeFunction(llvm::FunctionType *FTy, StringRef Name,
-                                     llvm::AttributeList ExtraAttrs,
-                                     bool Local) {
-  llvm::Constant *C =
-      GetOrCreateLLVMFunction(Name, FTy, GlobalDecl(), /*ForVTable=*/false,
-                              /*DontDefer=*/false, /*IsThunk=*/false,
-                              ExtraAttrs);
-
-  if (auto *F = dyn_cast<llvm::Function>(C)) {
-    if (F->empty()) {
-      F->setCallingConv(getRuntimeCC());
-
-      // In Windows Itanium environments, try to mark runtime functions
-      // dllimport. For Mingw and MSVC, don't. We don't really know if the user
-      // will link their standard library statically or dynamically. Marking
-      // functions imported when they are not imported can cause linker errors
-      // and warnings.
-      if (!Local && getTriple().isWindowsItaniumEnvironment() &&
-          !getCodeGenOpts().LTOVisibilityPublicStd) {
-        const FunctionDecl *FD = GetRuntimeFunctionDecl(Context, Name);
-        if (!FD || FD->hasAttr<DLLImportAttr>()) {
-          F->setDLLStorageClass(llvm::GlobalValue::DLLImportStorageClass);
-          F->setLinkage(llvm::GlobalValue::ExternalLinkage);
-        }
-      }
-      setDSOLocal(F);
-    }
-  }
-
-  return {FTy, C};
-}
-
-/// isTypeConstant - Determine whether an object of this type can be emitted
-/// as a constant.
-///
-/// If ExcludeCtor is true, the duration when the object's constructor runs
-/// will not be considered. The caller will need to verify that the object is
-/// not written to during its construction.
-bool CodeGenModule::isTypeConstant(QualType Ty, bool ExcludeCtor) {
-  if (!Ty.isConstant(Context) && !Ty->isReferenceType())
-    return false;
-
-  if (Context.getLangOpts().CPlusPlus) {
-    if (const CXXRecordDecl *Record
-          = Context.getBaseElementType(Ty)->getAsCXXRecordDecl())
-      return ExcludeCtor && !Record->hasMutableFields() &&
-             Record->hasTrivialDestructor();
-  }
-
-  return true;
-}
-
-/// GetOrCreateLLVMGlobal - If the specified mangled name is not in the module,
-/// create and return an llvm GlobalVariable with the specified type.  If there
-/// is something in the module with the specified name, return it potentially
-/// bitcasted to the right type.
-///
-/// If D is non-null, it specifies a decl that correspond to this.  This is used
-/// to set the attributes on the global when it is first created.
-///
-/// If IsForDefinition is true, it is guaranteed that an actual global with
-/// type Ty will be returned, not conversion of a variable with the same
-/// mangled name but some other type.
-llvm::Constant *
-CodeGenModule::GetOrCreateLLVMGlobal(StringRef MangledName,
-                                     llvm::PointerType *Ty,
-                                     const VarDecl *D,
-                                     ForDefinition_t IsForDefinition) {
-  // Lookup the entry, lazily creating it if necessary.
-  llvm::GlobalValue *Entry = GetGlobalValue(MangledName);
-  if (Entry) {
-    if (WeakRefReferences.erase(Entry)) {
-      if (D && !D->hasAttr<WeakAttr>())
-        Entry->setLinkage(llvm::Function::ExternalLinkage);
-    }
-
-    // Handle dropped DLL attributes.
-    if (D && !D->hasAttr<DLLImportAttr>() && !D->hasAttr<DLLExportAttr>())
-      Entry->setDLLStorageClass(llvm::GlobalValue::DefaultStorageClass);
-
-    if (LangOpts.OpenMP && !LangOpts.OpenMPSimd && D)
-      getOpenMPRuntime().registerTargetGlobalVariable(D, Entry);
-
-    if (Entry->getType() == Ty)
-      return Entry;
-
-    // If there are two attempts to define the same mangled name, issue an
-    // error.
-    if (IsForDefinition && !Entry->isDeclaration()) {
-      GlobalDecl OtherGD;
-      const VarDecl *OtherD;
-
-      // Check that D is not yet in DiagnosedConflictingDefinitions is required
-      // to make sure that we issue an error only once.
-      if (D && lookupRepresentativeDecl(MangledName, OtherGD) &&
-          (D->getCanonicalDecl() != OtherGD.getCanonicalDecl().getDecl()) &&
-          (OtherD = dyn_cast<VarDecl>(OtherGD.getDecl())) &&
-          OtherD->hasInit() &&
-          DiagnosedConflictingDefinitions.insert(D).second) {
-        getDiags().Report(D->getLocation(), diag::err_duplicate_mangled_name)
-            << MangledName;
-        getDiags().Report(OtherGD.getDecl()->getLocation(),
-                          diag::note_previous_definition);
-      }
-    }
-
-    // Make sure the result is of the correct type.
-    if (Entry->getType()->getAddressSpace() != Ty->getAddressSpace())
-      return llvm::ConstantExpr::getAddrSpaceCast(Entry, Ty);
-
-    // (If global is requested for a definition, we always need to create a new
-    // global, not just return a bitcast.)
-    if (!IsForDefinition)
-      return llvm::ConstantExpr::getBitCast(Entry, Ty);
-  }
-
-  auto AddrSpace = GetGlobalVarAddressSpace(D);
-  auto TargetAddrSpace = getContext().getTargetAddressSpace(AddrSpace);
-
-  auto *GV = new llvm::GlobalVariable(
-      getModule(), Ty->getElementType(), false,
-      llvm::GlobalValue::ExternalLinkage, nullptr, MangledName, nullptr,
-      llvm::GlobalVariable::NotThreadLocal, TargetAddrSpace);
-
-  // If we already created a global with the same mangled name (but different
-  // type) before, take its name and remove it from its parent.
-  if (Entry) {
-    GV->takeName(Entry);
-
-    if (!Entry->use_empty()) {
-      llvm::Constant *NewPtrForOldDecl =
-          llvm::ConstantExpr::getBitCast(GV, Entry->getType());
-      Entry->replaceAllUsesWith(NewPtrForOldDecl);
-    }
-
-    Entry->eraseFromParent();
-  }
-
-  // This is the first use or definition of a mangled name.  If there is a
-  // deferred decl with this name, remember that we need to emit it at the end
-  // of the file.
-  auto DDI = DeferredDecls.find(MangledName);
-  if (DDI != DeferredDecls.end()) {
-    // Move the potentially referenced deferred decl to the DeferredDeclsToEmit
-    // list, and remove it from DeferredDecls (since we don't need it anymore).
-    addDeferredDeclToEmit(DDI->second);
-    DeferredDecls.erase(DDI);
-  }
-
-  // Handle things which are present even on external declarations.
-  if (D) {
-    if (LangOpts.OpenMP && !LangOpts.OpenMPSimd)
-      getOpenMPRuntime().registerTargetGlobalVariable(D, GV);
-
-    // FIXME: This code is overly simple and should be merged with other global
-    // handling.
-    GV->setConstant(isTypeConstant(D->getType(), false));
-
-    GV->setAlignment(getContext().getDeclAlign(D).getQuantity());
-
-    setLinkageForGV(GV, D);
-
-    if (D->getTLSKind()) {
-      if (D->getTLSKind() == VarDecl::TLS_Dynamic)
-        CXXThreadLocals.push_back(D);
-      setTLSMode(GV, *D);
-    }
-
-    setGVProperties(GV, D);
-
-    // If required by the ABI, treat declarations of static data members with
-    // inline initializers as definitions.
-    if (getContext().isMSStaticDataMemberInlineDefinition(D)) {
-      EmitGlobalVarDefinition(D);
-    }
-
-    // Emit section information for extern variables.
-    if (D->hasExternalStorage()) {
-      if (const SectionAttr *SA = D->getAttr<SectionAttr>())
-        GV->setSection(SA->getName());
-    }
-
-    // Handle XCore specific ABI requirements.
-    if (getTriple().getArch() == llvm::Triple::xcore &&
-        D->getLanguageLinkage() == CLanguageLinkage &&
-        D->getType().isConstant(Context) &&
-        isExternallyVisible(D->getLinkageAndVisibility().getLinkage()))
-      GV->setSection(".cp.rodata");
-
-    // Check if we a have a const declaration with an initializer, we may be
-    // able to emit it as available_externally to expose it's value to the
-    // optimizer.
-    if (Context.getLangOpts().CPlusPlus && GV->hasExternalLinkage() &&
-        D->getType().isConstQualified() && !GV->hasInitializer() &&
-        !D->hasDefinition() && D->hasInit() && !D->hasAttr<DLLImportAttr>()) {
-      const auto *Record =
-          Context.getBaseElementType(D->getType())->getAsCXXRecordDecl();
-      bool HasMutableFields = Record && Record->hasMutableFields();
-      if (!HasMutableFields) {
-        const VarDecl *InitDecl;
-        const Expr *InitExpr = D->getAnyInitializer(InitDecl);
-        if (InitExpr) {
-          ConstantEmitter emitter(*this);
-          llvm::Constant *Init = emitter.tryEmitForInitializer(*InitDecl);
-          if (Init) {
-            auto *InitType = Init->getType();
-            if (GV->getType()->getElementType() != InitType) {
-              // The type of the initializer does not match the definition.
-              // This happens when an initializer has a different type from
-              // the type of the global (because of padding at the end of a
-              // structure for instance).
-              GV->setName(StringRef());
-              // Make a new global with the correct type, this is now guaranteed
-              // to work.
-              auto *NewGV = cast<llvm::GlobalVariable>(
-                  GetAddrOfGlobalVar(D, InitType, IsForDefinition));
-
-              // Erase the old global, since it is no longer used.
-              GV->eraseFromParent();
-              GV = NewGV;
-            } else {
-              GV->setInitializer(Init);
-              GV->setConstant(true);
-              GV->setLinkage(llvm::GlobalValue::AvailableExternallyLinkage);
-            }
-            emitter.finalize(GV);
-          }
-        }
-      }
-    }
-  }
-
-  LangAS ExpectedAS =
-      D ? D->getType().getAddressSpace()
-        : (LangOpts.OpenCL ? LangAS::opencl_global : LangAS::Default);
-  assert(getContext().getTargetAddressSpace(ExpectedAS) ==
-         Ty->getPointerAddressSpace());
-  if (AddrSpace != ExpectedAS)
-    return getTargetCodeGenInfo().performAddrSpaceCast(*this, GV, AddrSpace,
-                                                       ExpectedAS, Ty);
-
-  if (GV->isDeclaration())
-    getTargetCodeGenInfo().setTargetAttributes(D, GV, *this);
-
-  return GV;
-}
-
-llvm::Constant *
-CodeGenModule::GetAddrOfGlobal(GlobalDecl GD,
-                               ForDefinition_t IsForDefinition) {
-  const Decl *D = GD.getDecl();
-  if (isa<CXXConstructorDecl>(D) || isa<CXXDestructorDecl>(D))
-    return getAddrOfCXXStructor(GD, /*FnInfo=*/nullptr, /*FnType=*/nullptr,
-                                /*DontDefer=*/false, IsForDefinition);
-  else if (isa<CXXMethodDecl>(D)) {
-    auto FInfo = &getTypes().arrangeCXXMethodDeclaration(
-        cast<CXXMethodDecl>(D));
-    auto Ty = getTypes().GetFunctionType(*FInfo);
-    return GetAddrOfFunction(GD, Ty, /*ForVTable=*/false, /*DontDefer=*/false,
-                             IsForDefinition);
-  } else if (isa<FunctionDecl>(D)) {
-    const CGFunctionInfo &FI = getTypes().arrangeGlobalDeclaration(GD);
-    llvm::FunctionType *Ty = getTypes().GetFunctionType(FI);
-    return GetAddrOfFunction(GD, Ty, /*ForVTable=*/false, /*DontDefer=*/false,
-                             IsForDefinition);
-  } else
-    return GetAddrOfGlobalVar(cast<VarDecl>(D), /*Ty=*/nullptr,
-                              IsForDefinition);
-}
-
-llvm::GlobalVariable *CodeGenModule::CreateOrReplaceCXXRuntimeVariable(
-    StringRef Name, llvm::Type *Ty, llvm::GlobalValue::LinkageTypes Linkage,
-    unsigned Alignment) {
-  llvm::GlobalVariable *GV = getModule().getNamedGlobal(Name);
-  llvm::GlobalVariable *OldGV = nullptr;
-
-  if (GV) {
-    // Check if the variable has the right type.
-    if (GV->getType()->getElementType() == Ty)
-      return GV;
-
-    // Because C++ name mangling, the only way we can end up with an already
-    // existing global with the same name is if it has been declared extern "C".
-    assert(GV->isDeclaration() && "Declaration has wrong type!");
-    OldGV = GV;
-  }
-
-  // Create a new variable.
-  GV = new llvm::GlobalVariable(getModule(), Ty, /*isConstant=*/true,
-                                Linkage, nullptr, Name);
-
-  if (OldGV) {
-    // Replace occurrences of the old variable if needed.
-    GV->takeName(OldGV);
-
-    if (!OldGV->use_empty()) {
-      llvm::Constant *NewPtrForOldDecl =
-      llvm::ConstantExpr::getBitCast(GV, OldGV->getType());
-      OldGV->replaceAllUsesWith(NewPtrForOldDecl);
-    }
-
-    OldGV->eraseFromParent();
-  }
-
-  if (supportsCOMDAT() && GV->isWeakForLinker() &&
-      !GV->hasAvailableExternallyLinkage())
-    GV->setComdat(TheModule.getOrInsertComdat(GV->getName()));
-
-  GV->setAlignment(Alignment);
-
-  return GV;
-}
-
-/// GetAddrOfGlobalVar - Return the llvm::Constant for the address of the
-/// given global variable.  If Ty is non-null and if the global doesn't exist,
-/// then it will be created with the specified type instead of whatever the
-/// normal requested type would be. If IsForDefinition is true, it is guaranteed
-/// that an actual global with type Ty will be returned, not conversion of a
-/// variable with the same mangled name but some other type.
-llvm::Constant *CodeGenModule::GetAddrOfGlobalVar(const VarDecl *D,
-                                                  llvm::Type *Ty,
-                                           ForDefinition_t IsForDefinition) {
-  assert(D->hasGlobalStorage() && "Not a global variable");
-  QualType ASTTy = D->getType();
-  if (!Ty)
-    Ty = getTypes().ConvertTypeForMem(ASTTy);
-
-  llvm::PointerType *PTy =
-    llvm::PointerType::get(Ty, getContext().getTargetAddressSpace(ASTTy));
-
-  StringRef MangledName = getMangledName(D);
-  return GetOrCreateLLVMGlobal(MangledName, PTy, D, IsForDefinition);
-}
-
-/// CreateRuntimeVariable - Create a new runtime global variable with the
-/// specified type and name.
-llvm::Constant *
-CodeGenModule::CreateRuntimeVariable(llvm::Type *Ty,
-                                     StringRef Name) {
-  auto PtrTy =
-      getContext().getLangOpts().OpenCL
-          ? llvm::PointerType::get(
-                Ty, getContext().getTargetAddressSpace(LangAS::opencl_global))
-          : llvm::PointerType::getUnqual(Ty);
-  auto *Ret = GetOrCreateLLVMGlobal(Name, PtrTy, nullptr);
-  setDSOLocal(cast<llvm::GlobalValue>(Ret->stripPointerCasts()));
-  return Ret;
-}
-
-void CodeGenModule::EmitTentativeDefinition(const VarDecl *D) {
-  assert(!D->getInit() && "Cannot emit definite definitions here!");
-
-  StringRef MangledName = getMangledName(D);
-  llvm::GlobalValue *GV = GetGlobalValue(MangledName);
-
-  // We already have a definition, not declaration, with the same mangled name.
-  // Emitting of declaration is not required (and actually overwrites emitted
-  // definition).
-  if (GV && !GV->isDeclaration())
-    return;
-
-  // If we have not seen a reference to this variable yet, place it into the
-  // deferred declarations table to be emitted if needed later.
-  if (!MustBeEmitted(D) && !GV) {
-      DeferredDecls[MangledName] = D;
-      return;
-  }
-
-  // The tentative definition is the only definition.
-  EmitGlobalVarDefinition(D);
-}
-
-CharUnits CodeGenModule::GetTargetTypeStoreSize(llvm::Type *Ty) const {
-  return Context.toCharUnitsFromBits(
-      getDataLayout().getTypeStoreSizeInBits(Ty));
-}
-
-LangAS CodeGenModule::GetGlobalVarAddressSpace(const VarDecl *D) {
-  LangAS AddrSpace = LangAS::Default;
-  if (LangOpts.OpenCL) {
-    AddrSpace = D ? D->getType().getAddressSpace() : LangAS::opencl_global;
-    assert(AddrSpace == LangAS::opencl_global ||
-           AddrSpace == LangAS::opencl_constant ||
-           AddrSpace == LangAS::opencl_local ||
-           AddrSpace >= LangAS::FirstTargetAddressSpace);
-    return AddrSpace;
-  }
-
-  if (LangOpts.CUDA && LangOpts.CUDAIsDevice) {
-    if (D && D->hasAttr<CUDAConstantAttr>())
-      return LangAS::cuda_constant;
-    else if (D && D->hasAttr<CUDASharedAttr>())
-      return LangAS::cuda_shared;
-    else if (D && D->hasAttr<CUDADeviceAttr>())
-      return LangAS::cuda_device;
-    else if (D && D->getType().isConstQualified())
-      return LangAS::cuda_constant;
-    else
-      return LangAS::cuda_device;
-  }
-
-  if (LangOpts.OpenMP) {
-    LangAS AS;
-    if (OpenMPRuntime->hasAllocateAttributeForGlobalVar(D, AS))
-      return AS;
-  }
-  return getTargetCodeGenInfo().getGlobalVarAddressSpace(*this, D);
-}
-
-LangAS CodeGenModule::getStringLiteralAddressSpace() const {
-  // OpenCL v1.2 s6.5.3: a string literal is in the constant address space.
-  if (LangOpts.OpenCL)
-    return LangAS::opencl_constant;
-  if (auto AS = getTarget().getConstantAddressSpace())
-    return AS.getValue();
-  return LangAS::Default;
-}
-
-// In address space agnostic languages, string literals are in default address
-// space in AST. However, certain targets (e.g. amdgcn) request them to be
-// emitted in constant address space in LLVM IR. To be consistent with other
-// parts of AST, string literal global variables in constant address space
-// need to be casted to default address space before being put into address
-// map and referenced by other part of CodeGen.
-// In OpenCL, string literals are in constant address space in AST, therefore
-// they should not be casted to default address space.
-static llvm::Constant *
-castStringLiteralToDefaultAddressSpace(CodeGenModule &CGM,
-                                       llvm::GlobalVariable *GV) {
-  llvm::Constant *Cast = GV;
-  if (!CGM.getLangOpts().OpenCL) {
-    if (auto AS = CGM.getTarget().getConstantAddressSpace()) {
-      if (AS != LangAS::Default)
-        Cast = CGM.getTargetCodeGenInfo().performAddrSpaceCast(
-            CGM, GV, AS.getValue(), LangAS::Default,
-            GV->getValueType()->getPointerTo(
-                CGM.getContext().getTargetAddressSpace(LangAS::Default)));
-    }
-  }
-  return Cast;
-}
-
-template<typename SomeDecl>
-void CodeGenModule::MaybeHandleStaticInExternC(const SomeDecl *D,
-                                               llvm::GlobalValue *GV) {
-  if (!getLangOpts().CPlusPlus)
-    return;
-
-  // Must have 'used' attribute, or else inline assembly can't rely on
-  // the name existing.
-  if (!D->template hasAttr<UsedAttr>())
-    return;
-
-  // Must have internal linkage and an ordinary name.
-  if (!D->getIdentifier() || D->getFormalLinkage() != InternalLinkage)
-    return;
-
-  // Must be in an extern "C" context. Entities declared directly within
-  // a record are not extern "C" even if the record is in such a context.
-  const SomeDecl *First = D->getFirstDecl();
-  if (First->getDeclContext()->isRecord() || !First->isInExternCContext())
-    return;
-
-  // OK, this is an internal linkage entity inside an extern "C" linkage
-  // specification. Make a note of that so we can give it the "expected"
-  // mangled name if nothing else is using that name.
-  std::pair<StaticExternCMap::iterator, bool> R =
-      StaticExternCValues.insert(std::make_pair(D->getIdentifier(), GV));
-
-  // If we have multiple internal linkage entities with the same name
-  // in extern "C" regions, none of them gets that name.
-  if (!R.second)
-    R.first->second = nullptr;
-}
-
-static bool shouldBeInCOMDAT(CodeGenModule &CGM, const Decl &D) {
-  if (!CGM.supportsCOMDAT())
-    return false;
-
-  // Do not set COMDAT attribute for CUDA/HIP stub functions to prevent
-  // them being "merged" by the COMDAT Folding linker optimization.
-  if (D.hasAttr<CUDAGlobalAttr>())
-    return false;
-
-  if (D.hasAttr<SelectAnyAttr>())
-    return true;
-
-  GVALinkage Linkage;
-  if (auto *VD = dyn_cast<VarDecl>(&D))
-    Linkage = CGM.getContext().GetGVALinkageForVariable(VD);
-  else
-    Linkage = CGM.getContext().GetGVALinkageForFunction(cast<FunctionDecl>(&D));
-
-  switch (Linkage) {
-  case GVA_Internal:
-  case GVA_AvailableExternally:
-  case GVA_StrongExternal:
-    return false;
-  case GVA_DiscardableODR:
-  case GVA_StrongODR:
-    return true;
-  }
-  llvm_unreachable("No such linkage");
-}
-
-void CodeGenModule::maybeSetTrivialComdat(const Decl &D,
-                                          llvm::GlobalObject &GO) {
-  if (!shouldBeInCOMDAT(*this, D))
-    return;
-  GO.setComdat(TheModule.getOrInsertComdat(GO.getName()));
-}
-
-/// Pass IsTentative as true if you want to create a tentative definition.
-void CodeGenModule::EmitGlobalVarDefinition(const VarDecl *D,
-                                            bool IsTentative) {
-  // OpenCL global variables of sampler type are translated to function calls,
-  // therefore no need to be translated.
-  QualType ASTTy = D->getType();
-  if (getLangOpts().OpenCL && ASTTy->isSamplerT())
-    return;
-
-  // If this is OpenMP device, check if it is legal to emit this global
-  // normally.
-  if (LangOpts.OpenMPIsDevice && OpenMPRuntime &&
-      OpenMPRuntime->emitTargetGlobalVariable(D))
-    return;
-
-  llvm::Constant *Init = nullptr;
-  CXXRecordDecl *RD = ASTTy->getBaseElementTypeUnsafe()->getAsCXXRecordDecl();
-  bool NeedsGlobalCtor = false;
-  bool NeedsGlobalDtor = RD && !RD->hasTrivialDestructor();
-
-  const VarDecl *InitDecl;
-  const Expr *InitExpr = D->getAnyInitializer(InitDecl);
-
-  Optional<ConstantEmitter> emitter;
-
-  // CUDA E.2.4.1 "__shared__ variables cannot have an initialization
-  // as part of their declaration."  Sema has already checked for
-  // error cases, so we just need to set Init to UndefValue.
-  bool IsCUDASharedVar =
-      getLangOpts().CUDAIsDevice && D->hasAttr<CUDASharedAttr>();
-  // Shadows of initialized device-side global variables are also left
-  // undefined.
-  bool IsCUDAShadowVar =
-      !getLangOpts().CUDAIsDevice &&
-      (D->hasAttr<CUDAConstantAttr>() || D->hasAttr<CUDADeviceAttr>() ||
-       D->hasAttr<CUDASharedAttr>());
-  // HIP pinned shadow of initialized host-side global variables are also
-  // left undefined.
-  bool IsHIPPinnedShadowVar =
-      getLangOpts().CUDAIsDevice && D->hasAttr<HIPPinnedShadowAttr>();
-  if (getLangOpts().CUDA &&
-      (IsCUDASharedVar || IsCUDAShadowVar || IsHIPPinnedShadowVar))
-    Init = llvm::UndefValue::get(getTypes().ConvertType(ASTTy));
-  else if (!InitExpr) {
-    // This is a tentative definition; tentative definitions are
-    // implicitly initialized with { 0 }.
-    //
-    // Note that tentative definitions are only emitted at the end of
-    // a translation unit, so they should never have incomplete
-    // type. In addition, EmitTentativeDefinition makes sure that we
-    // never attempt to emit a tentative definition if a real one
-    // exists. A use may still exists, however, so we still may need
-    // to do a RAUW.
-    assert(!ASTTy->isIncompleteType() && "Unexpected incomplete type");
-    Init = EmitNullConstant(D->getType());
-  } else {
-    initializedGlobalDecl = GlobalDecl(D);
-    emitter.emplace(*this);
-    Init = emitter->tryEmitForInitializer(*InitDecl);
-
-    if (!Init) {
-      QualType T = InitExpr->getType();
-      if (D->getType()->isReferenceType())
-        T = D->getType();
-
-      if (getLangOpts().CPlusPlus) {
-        Init = EmitNullConstant(T);
-        NeedsGlobalCtor = true;
-      } else {
-        ErrorUnsupported(D, "static initializer");
-        Init = llvm::UndefValue::get(getTypes().ConvertType(T));
-      }
-    } else {
-      // We don't need an initializer, so remove the entry for the delayed
-      // initializer position (just in case this entry was delayed) if we
-      // also don't need to register a destructor.
-      if (getLangOpts().CPlusPlus && !NeedsGlobalDtor)
-        DelayedCXXInitPosition.erase(D);
-    }
-  }
-
-  llvm::Type* InitType = Init->getType();
-  llvm::Constant *Entry =
-      GetAddrOfGlobalVar(D, InitType, ForDefinition_t(!IsTentative));
-
-  // Strip off a bitcast if we got one back.
-  if (auto *CE = dyn_cast<llvm::ConstantExpr>(Entry)) {
-    assert(CE->getOpcode() == llvm::Instruction::BitCast ||
-           CE->getOpcode() == llvm::Instruction::AddrSpaceCast ||
-           // All zero index gep.
-           CE->getOpcode() == llvm::Instruction::GetElementPtr);
-    Entry = CE->getOperand(0);
-  }
-
-  // Entry is now either a Function or GlobalVariable.
-  auto *GV = dyn_cast<llvm::GlobalVariable>(Entry);
-
-  // We have a definition after a declaration with the wrong type.
-  // We must make a new GlobalVariable* and update everything that used OldGV
-  // (a declaration or tentative definition) with the new GlobalVariable*
-  // (which will be a definition).
-  //
-  // This happens if there is a prototype for a global (e.g.
-  // "extern int x[];") and then a definition of a different type (e.g.
-  // "int x[10];"). This also happens when an initializer has a different type
-  // from the type of the global (this happens with unions).
-  if (!GV || GV->getType()->getElementType() != InitType ||
-      GV->getType()->getAddressSpace() !=
-          getContext().getTargetAddressSpace(GetGlobalVarAddressSpace(D))) {
-
-    // Move the old entry aside so that we'll create a new one.
-    Entry->setName(StringRef());
-
-    // Make a new global with the correct type, this is now guaranteed to work.
-    GV = cast<llvm::GlobalVariable>(
-        GetAddrOfGlobalVar(D, InitType, ForDefinition_t(!IsTentative)));
-
-    // Replace all uses of the old global with the new global
-    llvm::Constant *NewPtrForOldDecl =
-        llvm::ConstantExpr::getBitCast(GV, Entry->getType());
-    Entry->replaceAllUsesWith(NewPtrForOldDecl);
-
-    // Erase the old global, since it is no longer used.
-    cast<llvm::GlobalValue>(Entry)->eraseFromParent();
-  }
-
-  MaybeHandleStaticInExternC(D, GV);
-
-  if (D->hasAttr<AnnotateAttr>())
-    AddGlobalAnnotations(D, GV);
-
-  // Set the llvm linkage type as appropriate.
-  llvm::GlobalValue::LinkageTypes Linkage =
-      getLLVMLinkageVarDefinition(D, GV->isConstant());
-
-  // CUDA B.2.1 "The __device__ qualifier declares a variable that resides on
-  // the device. [...]"
-  // CUDA B.2.2 "The __constant__ qualifier, optionally used together with
-  // __device__, declares a variable that: [...]
-  // Is accessible from all the threads within the grid and from the host
-  // through the runtime library (cudaGetSymbolAddress() / cudaGetSymbolSize()
-  // / cudaMemcpyToSymbol() / cudaMemcpyFromSymbol())."
-  if (GV && LangOpts.CUDA) {
-    if (LangOpts.CUDAIsDevice) {
-      if (Linkage != llvm::GlobalValue::InternalLinkage &&
-          (D->hasAttr<CUDADeviceAttr>() || D->hasAttr<CUDAConstantAttr>()))
-        GV->setExternallyInitialized(true);
-    } else {
-      // Host-side shadows of external declarations of device-side
-      // global variables become internal definitions. These have to
-      // be internal in order to prevent name conflicts with global
-      // host variables with the same name in a different TUs.
-      if (D->hasAttr<CUDADeviceAttr>() || D->hasAttr<CUDAConstantAttr>() ||
-          D->hasAttr<HIPPinnedShadowAttr>()) {
-        Linkage = llvm::GlobalValue::InternalLinkage;
-
-        // Shadow variables and their properties must be registered
-        // with CUDA runtime.
-        unsigned Flags = 0;
-        if (!D->hasDefinition())
-          Flags |= CGCUDARuntime::ExternDeviceVar;
-        if (D->hasAttr<CUDAConstantAttr>())
-          Flags |= CGCUDARuntime::ConstantDeviceVar;
-        // Extern global variables will be registered in the TU where they are
-        // defined.
-        if (!D->hasExternalStorage())
-          getCUDARuntime().registerDeviceVar(D, *GV, Flags);
-      } else if (D->hasAttr<CUDASharedAttr>())
-        // __shared__ variables are odd. Shadows do get created, but
-        // they are not registered with the CUDA runtime, so they
-        // can't really be used to access their device-side
-        // counterparts. It's not clear yet whether it's nvcc's bug or
-        // a feature, but we've got to do the same for compatibility.
-        Linkage = llvm::GlobalValue::InternalLinkage;
-    }
-  }
-
-  if (!IsHIPPinnedShadowVar)
-    GV->setInitializer(Init);
-  if (emitter) emitter->finalize(GV);
-
-  // If it is safe to mark the global 'constant', do so now.
-  GV->setConstant(!NeedsGlobalCtor && !NeedsGlobalDtor &&
-                  isTypeConstant(D->getType(), true));
-
-  // If it is in a read-only section, mark it 'constant'.
-  if (const SectionAttr *SA = D->getAttr<SectionAttr>()) {
-    const ASTContext::SectionInfo &SI = Context.SectionInfos[SA->getName()];
-    if ((SI.SectionFlags & ASTContext::PSF_Write) == 0)
-      GV->setConstant(true);
-  }
-
-  GV->setAlignment(getContext().getDeclAlign(D).getQuantity());
-
-
-  // On Darwin, if the normal linkage of a C++ thread_local variable is
-  // LinkOnce or Weak, we keep the normal linkage to prevent multiple
-  // copies within a linkage unit; otherwise, the backing variable has
-  // internal linkage and all accesses should just be calls to the
-  // Itanium-specified entry point, which has the normal linkage of the
-  // variable. This is to preserve the ability to change the implementation
-  // behind the scenes.
-  if (!D->isStaticLocal() && D->getTLSKind() == VarDecl::TLS_Dynamic &&
-      Context.getTargetInfo().getTriple().isOSDarwin() &&
-      !llvm::GlobalVariable::isLinkOnceLinkage(Linkage) &&
-      !llvm::GlobalVariable::isWeakLinkage(Linkage))
-    Linkage = llvm::GlobalValue::InternalLinkage;
-
-  GV->setLinkage(Linkage);
-  if (D->hasAttr<DLLImportAttr>())
-    GV->setDLLStorageClass(llvm::GlobalVariable::DLLImportStorageClass);
-  else if (D->hasAttr<DLLExportAttr>())
-    GV->setDLLStorageClass(llvm::GlobalVariable::DLLExportStorageClass);
-  else
-    GV->setDLLStorageClass(llvm::GlobalVariable::DefaultStorageClass);
-
-  if (Linkage == llvm::GlobalVariable::CommonLinkage) {
-    // common vars aren't constant even if declared const.
-    GV->setConstant(false);
-    // Tentative definition of global variables may be initialized with
-    // non-zero null pointers. In this case they should have weak linkage
-    // since common linkage must have zero initializer and must not have
-    // explicit section therefore cannot have non-zero initial value.
-    if (!GV->getInitializer()->isNullValue())
-      GV->setLinkage(llvm::GlobalVariable::WeakAnyLinkage);
-  }
-
-  setNonAliasAttributes(D, GV);
-
-  if (D->getTLSKind() && !GV->isThreadLocal()) {
-    if (D->getTLSKind() == VarDecl::TLS_Dynamic)
-      CXXThreadLocals.push_back(D);
-    setTLSMode(GV, *D);
-  }
-
-  maybeSetTrivialComdat(*D, *GV);
-
-  // Emit the initializer function if necessary.
-  if (NeedsGlobalCtor || NeedsGlobalDtor)
-    EmitCXXGlobalVarDeclInitFunc(D, GV, NeedsGlobalCtor);
-
-  SanitizerMD->reportGlobalToASan(GV, *D, NeedsGlobalCtor);
-
-  // Emit global variable debug information.
-  if (CGDebugInfo *DI = getModuleDebugInfo())
-    if (getCodeGenOpts().getDebugInfo() >= codegenoptions::LimitedDebugInfo)
-      DI->EmitGlobalVariable(GV, D);
-}
-
-static bool isVarDeclStrongDefinition(const ASTContext &Context,
-                                      CodeGenModule &CGM, const VarDecl *D,
-                                      bool NoCommon) {
-  // Don't give variables common linkage if -fno-common was specified unless it
-  // was overridden by a NoCommon attribute.
-  if ((NoCommon || D->hasAttr<NoCommonAttr>()) && !D->hasAttr<CommonAttr>())
-    return true;
-
-  // C11 6.9.2/2:
-  //   A declaration of an identifier for an object that has file scope without
-  //   an initializer, and without a storage-class specifier or with the
-  //   storage-class specifier static, constitutes a tentative definition.
-  if (D->getInit() || D->hasExternalStorage())
-    return true;
-
-  // A variable cannot be both common and exist in a section.
-  if (D->hasAttr<SectionAttr>())
-    return true;
-
-  // A variable cannot be both common and exist in a section.
-  // We don't try to determine which is the right section in the front-end.
-  // If no specialized section name is applicable, it will resort to default.
-  if (D->hasAttr<PragmaClangBSSSectionAttr>() ||
-      D->hasAttr<PragmaClangDataSectionAttr>() ||
-      D->hasAttr<PragmaClangRodataSectionAttr>())
-    return true;
-
-  // Thread local vars aren't considered common linkage.
-  if (D->getTLSKind())
-    return true;
-
-  // Tentative definitions marked with WeakImportAttr are true definitions.
-  if (D->hasAttr<WeakImportAttr>())
-    return true;
-
-  // A variable cannot be both common and exist in a comdat.
-  if (shouldBeInCOMDAT(CGM, *D))
-    return true;
-
-  // Declarations with a required alignment do not have common linkage in MSVC
-  // mode.
-  if (Context.getTargetInfo().getCXXABI().isMicrosoft()) {
-    if (D->hasAttr<AlignedAttr>())
-      return true;
-    QualType VarType = D->getType();
-    if (Context.isAlignmentRequired(VarType))
-      return true;
-
-    if (const auto *RT = VarType->getAs<RecordType>()) {
-      const RecordDecl *RD = RT->getDecl();
-      for (const FieldDecl *FD : RD->fields()) {
-        if (FD->isBitField())
-          continue;
-        if (FD->hasAttr<AlignedAttr>())
-          return true;
-        if (Context.isAlignmentRequired(FD->getType()))
-          return true;
-      }
-    }
-  }
-
-  // Microsoft's link.exe doesn't support alignments greater than 32 bytes for
-  // common symbols, so symbols with greater alignment requirements cannot be
-  // common.
-  // Other COFF linkers (ld.bfd and LLD) support arbitrary power-of-two
-  // alignments for common symbols via the aligncomm directive, so this
-  // restriction only applies to MSVC environments.
-  if (Context.getTargetInfo().getTriple().isKnownWindowsMSVCEnvironment() &&
-      Context.getTypeAlignIfKnown(D->getType()) >
-          Context.toBits(CharUnits::fromQuantity(32)))
-    return true;
-
-  return false;
-}
-
-llvm::GlobalValue::LinkageTypes CodeGenModule::getLLVMLinkageForDeclarator(
-    const DeclaratorDecl *D, GVALinkage Linkage, bool IsConstantVariable) {
-  if (Linkage == GVA_Internal)
-    return llvm::Function::InternalLinkage;
-
-  if (D->hasAttr<WeakAttr>()) {
-    if (IsConstantVariable)
-      return llvm::GlobalVariable::WeakODRLinkage;
-    else
-      return llvm::GlobalVariable::WeakAnyLinkage;
-  }
-
-  if (const auto *FD = D->getAsFunction())
-    if (FD->isMultiVersion() && Linkage == GVA_AvailableExternally)
-      return llvm::GlobalVariable::LinkOnceAnyLinkage;
-
-  // We are guaranteed to have a strong definition somewhere else,
-  // so we can use available_externally linkage.
-  if (Linkage == GVA_AvailableExternally)
-    return llvm::GlobalValue::AvailableExternallyLinkage;
-
-  // Note that Apple's kernel linker doesn't support symbol
-  // coalescing, so we need to avoid linkonce and weak linkages there.
-  // Normally, this means we just map to internal, but for explicit
-  // instantiations we'll map to external.
-
-  // In C++, the compiler has to emit a definition in every translation unit
-  // that references the function.  We should use linkonce_odr because
-  // a) if all references in this translation unit are optimized away, we
-  // don't need to codegen it.  b) if the function persists, it needs to be
-  // merged with other definitions. c) C++ has the ODR, so we know the
-  // definition is dependable.
-  if (Linkage == GVA_DiscardableODR)
-    return !Context.getLangOpts().AppleKext ? llvm::Function::LinkOnceODRLinkage
-                                            : llvm::Function::InternalLinkage;
-
-  // An explicit instantiation of a template has weak linkage, since
-  // explicit instantiations can occur in multiple translation units
-  // and must all be equivalent. However, we are not allowed to
-  // throw away these explicit instantiations.
-  //
-  // We don't currently support CUDA device code spread out across multiple TUs,
-  // so say that CUDA templates are either external (for kernels) or internal.
-  // This lets llvm perform aggressive inter-procedural optimizations.
-  if (Linkage == GVA_StrongODR) {
-    if (Context.getLangOpts().AppleKext)
-      return llvm::Function::ExternalLinkage;
-    if (Context.getLangOpts().CUDA && Context.getLangOpts().CUDAIsDevice)
-      return D->hasAttr<CUDAGlobalAttr>() ? llvm::Function::ExternalLinkage
-                                          : llvm::Function::InternalLinkage;
-    return llvm::Function::WeakODRLinkage;
-  }
-
-  // C++ doesn't have tentative definitions and thus cannot have common
-  // linkage.
-  if (!getLangOpts().CPlusPlus && isa<VarDecl>(D) &&
-      !isVarDeclStrongDefinition(Context, *this, cast<VarDecl>(D),
-                                 CodeGenOpts.NoCommon))
-    return llvm::GlobalVariable::CommonLinkage;
-
-  // selectany symbols are externally visible, so use weak instead of
-  // linkonce.  MSVC optimizes away references to const selectany globals, so
-  // all definitions should be the same and ODR linkage should be used.
-  // http://msdn.microsoft.com/en-us/library/5tkz6s71.aspx
-  if (D->hasAttr<SelectAnyAttr>())
-    return llvm::GlobalVariable::WeakODRLinkage;
-
-  // Otherwise, we have strong external linkage.
-  assert(Linkage == GVA_StrongExternal);
-  return llvm::GlobalVariable::ExternalLinkage;
-}
-
-llvm::GlobalValue::LinkageTypes CodeGenModule::getLLVMLinkageVarDefinition(
-    const VarDecl *VD, bool IsConstant) {
-  GVALinkage Linkage = getContext().GetGVALinkageForVariable(VD);
-  return getLLVMLinkageForDeclarator(VD, Linkage, IsConstant);
-}
-
-/// Replace the uses of a function that was declared with a non-proto type.
-/// We want to silently drop extra arguments from call sites
-static void replaceUsesOfNonProtoConstant(llvm::Constant *old,
-                                          llvm::Function *newFn) {
-  // Fast path.
-  if (old->use_empty()) return;
-
-  llvm::Type *newRetTy = newFn->getReturnType();
-  SmallVector<llvm::Value*, 4> newArgs;
-  SmallVector<llvm::OperandBundleDef, 1> newBundles;
-
-  for (llvm::Value::use_iterator ui = old->use_begin(), ue = old->use_end();
-         ui != ue; ) {
-    llvm::Value::use_iterator use = ui++; // Increment before the use is erased.
-    llvm::User *user = use->getUser();
-
-    // Recognize and replace uses of bitcasts.  Most calls to
-    // unprototyped functions will use bitcasts.
-    if (auto *bitcast = dyn_cast<llvm::ConstantExpr>(user)) {
-      if (bitcast->getOpcode() == llvm::Instruction::BitCast)
-        replaceUsesOfNonProtoConstant(bitcast, newFn);
-      continue;
-    }
-
-    // Recognize calls to the function.
-    llvm::CallBase *callSite = dyn_cast<llvm::CallBase>(user);
-    if (!callSite) continue;
-    if (!callSite->isCallee(&*use))
-      continue;
-
-    // If the return types don't match exactly, then we can't
-    // transform this call unless it's dead.
-    if (callSite->getType() != newRetTy && !callSite->use_empty())
-      continue;
-
-    // Get the call site's attribute list.
-    SmallVector<llvm::AttributeSet, 8> newArgAttrs;
-    llvm::AttributeList oldAttrs = callSite->getAttributes();
-
-    // If the function was passed too few arguments, don't transform.
-    unsigned newNumArgs = newFn->arg_size();
-    if (callSite->arg_size() < newNumArgs)
-      continue;
-
-    // If extra arguments were passed, we silently drop them.
-    // If any of the types mismatch, we don't transform.
-    unsigned argNo = 0;
-    bool dontTransform = false;
-    for (llvm::Argument &A : newFn->args()) {
-      if (callSite->getArgOperand(argNo)->getType() != A.getType()) {
-        dontTransform = true;
-        break;
-      }
-
-      // Add any parameter attributes.
-      newArgAttrs.push_back(oldAttrs.getParamAttributes(argNo));
-      argNo++;
-    }
-    if (dontTransform)
-      continue;
-
-    // Okay, we can transform this.  Create the new call instruction and copy
-    // over the required information.
-    newArgs.append(callSite->arg_begin(), callSite->arg_begin() + argNo);
-
-    // Copy over any operand bundles.
-    callSite->getOperandBundlesAsDefs(newBundles);
-
-    llvm::CallBase *newCall;
-    if (dyn_cast<llvm::CallInst>(callSite)) {
-      newCall =
-          llvm::CallInst::Create(newFn, newArgs, newBundles, "", callSite);
-    } else {
-      auto *oldInvoke = cast<llvm::InvokeInst>(callSite);
-      newCall = llvm::InvokeInst::Create(newFn, oldInvoke->getNormalDest(),
-                                         oldInvoke->getUnwindDest(), newArgs,
-                                         newBundles, "", callSite);
-    }
-    newArgs.clear(); // for the next iteration
-
-    if (!newCall->getType()->isVoidTy())
-      newCall->takeName(callSite);
-    newCall->setAttributes(llvm::AttributeList::get(
-        newFn->getContext(), oldAttrs.getFnAttributes(),
-        oldAttrs.getRetAttributes(), newArgAttrs));
-    newCall->setCallingConv(callSite->getCallingConv());
-
-    // Finally, remove the old call, replacing any uses with the new one.
-    if (!callSite->use_empty())
-      callSite->replaceAllUsesWith(newCall);
-
-    // Copy debug location attached to CI.
-    if (callSite->getDebugLoc())
-      newCall->setDebugLoc(callSite->getDebugLoc());
-
-    callSite->eraseFromParent();
-  }
-}
-
-/// ReplaceUsesOfNonProtoTypeWithRealFunction - This function is called when we
-/// implement a function with no prototype, e.g. "int foo() {}".  If there are
-/// existing call uses of the old function in the module, this adjusts them to
-/// call the new function directly.
-///
-/// This is not just a cleanup: the always_inline pass requires direct calls to
-/// functions to be able to inline them.  If there is a bitcast in the way, it
-/// won't inline them.  Instcombine normally deletes these calls, but it isn't
-/// run at -O0.
-static void ReplaceUsesOfNonProtoTypeWithRealFunction(llvm::GlobalValue *Old,
-                                                      llvm::Function *NewFn) {
-  // If we're redefining a global as a function, don't transform it.
-  if (!isa<llvm::Function>(Old)) return;
-
-  replaceUsesOfNonProtoConstant(Old, NewFn);
-}
-
-void CodeGenModule::HandleCXXStaticMemberVarInstantiation(VarDecl *VD) {
-  auto DK = VD->isThisDeclarationADefinition();
-  if (DK == VarDecl::Definition && VD->hasAttr<DLLImportAttr>())
-    return;
-
-  TemplateSpecializationKind TSK = VD->getTemplateSpecializationKind();
-  // If we have a definition, this might be a deferred decl. If the
-  // instantiation is explicit, make sure we emit it at the end.
-  if (VD->getDefinition() && TSK == TSK_ExplicitInstantiationDefinition)
-    GetAddrOfGlobalVar(VD);
-
-  EmitTopLevelDecl(VD);
-}
-
-void CodeGenModule::EmitGlobalFunctionDefinition(GlobalDecl GD,
-                                                 llvm::GlobalValue *GV) {
-  const auto *D = cast<FunctionDecl>(GD.getDecl());
-
-  // Compute the function info and LLVM type.
-  const CGFunctionInfo &FI = getTypes().arrangeGlobalDeclaration(GD);
-  llvm::FunctionType *Ty = getTypes().GetFunctionType(FI);
-
-  // Get or create the prototype for the function.
-  if (!GV || (GV->getType()->getElementType() != Ty))
-    GV = cast<llvm::GlobalValue>(GetAddrOfFunction(GD, Ty, /*ForVTable=*/false,
-                                                   /*DontDefer=*/true,
-                                                   ForDefinition));
-
-  // Already emitted.
-  if (!GV->isDeclaration())
-    return;
-
-  // We need to set linkage and visibility on the function before
-  // generating code for it because various parts of IR generation
-  // want to propagate this information down (e.g. to local static
-  // declarations).
-  auto *Fn = cast<llvm::Function>(GV);
-  setFunctionLinkage(GD, Fn);
-
-  // FIXME: this is redundant with part of setFunctionDefinitionAttributes
-  setGVProperties(Fn, GD);
-
-  MaybeHandleStaticInExternC(D, Fn);
-
-
-  maybeSetTrivialComdat(*D, *Fn);
-
-  CodeGenFunction(*this).GenerateCode(D, Fn, FI);
-
-  setNonAliasAttributes(GD, Fn);
-  SetLLVMFunctionAttributesForDefinition(D, Fn);
-
-  if (const ConstructorAttr *CA = D->getAttr<ConstructorAttr>())
-    AddGlobalCtor(Fn, CA->getPriority());
-  if (const DestructorAttr *DA = D->getAttr<DestructorAttr>())
-    AddGlobalDtor(Fn, DA->getPriority());
-  if (D->hasAttr<AnnotateAttr>())
-    AddGlobalAnnotations(D, Fn);
-}
-
-void CodeGenModule::EmitAliasDefinition(GlobalDecl GD) {
-  const auto *D = cast<ValueDecl>(GD.getDecl());
-  const AliasAttr *AA = D->getAttr<AliasAttr>();
-  assert(AA && "Not an alias?");
-
-  StringRef MangledName = getMangledName(GD);
-
-  if (AA->getAliasee() == MangledName) {
-    Diags.Report(AA->getLocation(), diag::err_cyclic_alias) << 0;
-    return;
-  }
-
-  // If there is a definition in the module, then it wins over the alias.
-  // This is dubious, but allow it to be safe.  Just ignore the alias.
-  llvm::GlobalValue *Entry = GetGlobalValue(MangledName);
-  if (Entry && !Entry->isDeclaration())
-    return;
-
-  Aliases.push_back(GD);
-
-  llvm::Type *DeclTy = getTypes().ConvertTypeForMem(D->getType());
-
-  // Create a reference to the named value.  This ensures that it is emitted
-  // if a deferred decl.
-  llvm::Constant *Aliasee;
-  llvm::GlobalValue::LinkageTypes LT;
-  if (isa<llvm::FunctionType>(DeclTy)) {
-    Aliasee = GetOrCreateLLVMFunction(AA->getAliasee(), DeclTy, GD,
-                                      /*ForVTable=*/false);
-    LT = getFunctionLinkage(GD);
-  } else {
-    Aliasee = GetOrCreateLLVMGlobal(AA->getAliasee(),
-                                    llvm::PointerType::getUnqual(DeclTy),
-                                    /*D=*/nullptr);
-    LT = getLLVMLinkageVarDefinition(cast<VarDecl>(GD.getDecl()),
-                                     D->getType().isConstQualified());
-  }
-
-  // Create the new alias itself, but don't set a name yet.
-  auto *GA =
-      llvm::GlobalAlias::create(DeclTy, 0, LT, "", Aliasee, &getModule());
-
-  if (Entry) {
-    if (GA->getAliasee() == Entry) {
-      Diags.Report(AA->getLocation(), diag::err_cyclic_alias) << 0;
-      return;
-    }
-
-    assert(Entry->isDeclaration());
-
-    // If there is a declaration in the module, then we had an extern followed
-    // by the alias, as in:
-    //   extern int test6();
-    //   ...
-    //   int test6() __attribute__((alias("test7")));
-    //
-    // Remove it and replace uses of it with the alias.
-    GA->takeName(Entry);
-
-    Entry->replaceAllUsesWith(llvm::ConstantExpr::getBitCast(GA,
-                                                          Entry->getType()));
-    Entry->eraseFromParent();
-  } else {
-    GA->setName(MangledName);
-  }
-
-  // Set attributes which are particular to an alias; this is a
-  // specialization of the attributes which may be set on a global
-  // variable/function.
-  if (D->hasAttr<WeakAttr>() || D->hasAttr<WeakRefAttr>() ||
-      D->isWeakImported()) {
-    GA->setLinkage(llvm::Function::WeakAnyLinkage);
-  }
-
-  if (const auto *VD = dyn_cast<VarDecl>(D))
-    if (VD->getTLSKind())
-      setTLSMode(GA, *VD);
-
-  SetCommonAttributes(GD, GA);
-}
-
-void CodeGenModule::emitIFuncDefinition(GlobalDecl GD) {
-  const auto *D = cast<ValueDecl>(GD.getDecl());
-  const IFuncAttr *IFA = D->getAttr<IFuncAttr>();
-  assert(IFA && "Not an ifunc?");
-
-  StringRef MangledName = getMangledName(GD);
-
-  if (IFA->getResolver() == MangledName) {
-    Diags.Report(IFA->getLocation(), diag::err_cyclic_alias) << 1;
-    return;
-  }
-
-  // Report an error if some definition overrides ifunc.
-  llvm::GlobalValue *Entry = GetGlobalValue(MangledName);
-  if (Entry && !Entry->isDeclaration()) {
-    GlobalDecl OtherGD;
-    if (lookupRepresentativeDecl(MangledName, OtherGD) &&
-        DiagnosedConflictingDefinitions.insert(GD).second) {
-      Diags.Report(D->getLocation(), diag::err_duplicate_mangled_name)
-          << MangledName;
-      Diags.Report(OtherGD.getDecl()->getLocation(),
-                   diag::note_previous_definition);
-    }
-    return;
-  }
-
-  Aliases.push_back(GD);
-
-  llvm::Type *DeclTy = getTypes().ConvertTypeForMem(D->getType());
-  llvm::Constant *Resolver =
-      GetOrCreateLLVMFunction(IFA->getResolver(), DeclTy, GD,
-                              /*ForVTable=*/false);
-  llvm::GlobalIFunc *GIF =
-      llvm::GlobalIFunc::create(DeclTy, 0, llvm::Function::ExternalLinkage,
-                                "", Resolver, &getModule());
-  if (Entry) {
-    if (GIF->getResolver() == Entry) {
-      Diags.Report(IFA->getLocation(), diag::err_cyclic_alias) << 1;
-      return;
-    }
-    assert(Entry->isDeclaration());
-
-    // If there is a declaration in the module, then we had an extern followed
-    // by the ifunc, as in:
-    //   extern int test();
-    //   ...
-    //   int test() __attribute__((ifunc("resolver")));
-    //
-    // Remove it and replace uses of it with the ifunc.
-    GIF->takeName(Entry);
-
-    Entry->replaceAllUsesWith(llvm::ConstantExpr::getBitCast(GIF,
-                                                          Entry->getType()));
-    Entry->eraseFromParent();
-  } else
-    GIF->setName(MangledName);
-
-  SetCommonAttributes(GD, GIF);
-}
-
-llvm::Function *CodeGenModule::getIntrinsic(unsigned IID,
-                                            ArrayRef<llvm::Type*> Tys) {
-  return llvm::Intrinsic::getDeclaration(&getModule(), (llvm::Intrinsic::ID)IID,
-                                         Tys);
-}
-
-static llvm::StringMapEntry<llvm::GlobalVariable *> &
-GetConstantCFStringEntry(llvm::StringMap<llvm::GlobalVariable *> &Map,
-                         const StringLiteral *Literal, bool TargetIsLSB,
-                         bool &IsUTF16, unsigned &StringLength) {
-  StringRef String = Literal->getString();
-  unsigned NumBytes = String.size();
-
-  // Check for simple case.
-  if (!Literal->containsNonAsciiOrNull()) {
-    StringLength = NumBytes;
-    return *Map.insert(std::make_pair(String, nullptr)).first;
-  }
-
-  // Otherwise, convert the UTF8 literals into a string of shorts.
-  IsUTF16 = true;
-
-  SmallVector<llvm::UTF16, 128> ToBuf(NumBytes + 1); // +1 for ending nulls.
-  const llvm::UTF8 *FromPtr = (const llvm::UTF8 *)String.data();
-  llvm::UTF16 *ToPtr = &ToBuf[0];
-
-  (void)llvm::ConvertUTF8toUTF16(&FromPtr, FromPtr + NumBytes, &ToPtr,
-                                 ToPtr + NumBytes, llvm::strictConversion);
-
-  // ConvertUTF8toUTF16 returns the length in ToPtr.
-  StringLength = ToPtr - &ToBuf[0];
-
-  // Add an explicit null.
-  *ToPtr = 0;
-  return *Map.insert(std::make_pair(
-                         StringRef(reinterpret_cast<const char *>(ToBuf.data()),
-                                   (StringLength + 1) * 2),
-                         nullptr)).first;
-}
-
-ConstantAddress
-CodeGenModule::GetAddrOfConstantCFString(const StringLiteral *Literal) {
-  unsigned StringLength = 0;
-  bool isUTF16 = false;
-  llvm::StringMapEntry<llvm::GlobalVariable *> &Entry =
-      GetConstantCFStringEntry(CFConstantStringMap, Literal,
-                               getDataLayout().isLittleEndian(), isUTF16,
-                               StringLength);
-
-  if (auto *C = Entry.second)
-    return ConstantAddress(C, CharUnits::fromQuantity(C->getAlignment()));
-
-  llvm::Constant *Zero = llvm::Constant::getNullValue(Int32Ty);
-  llvm::Constant *Zeros[] = { Zero, Zero };
-
-  const ASTContext &Context = getContext();
-  const llvm::Triple &Triple = getTriple();
-
-  const auto CFRuntime = getLangOpts().CFRuntime;
-  const bool IsSwiftABI =
-      static_cast<unsigned>(CFRuntime) >=
-      static_cast<unsigned>(LangOptions::CoreFoundationABI::Swift);
-  const bool IsSwift4_1 = CFRuntime == LangOptions::CoreFoundationABI::Swift4_1;
-
-  // If we don't already have it, get __CFConstantStringClassReference.
-  if (!CFConstantStringClassRef) {
-    const char *CFConstantStringClassName = "__CFConstantStringClassReference";
-    llvm::Type *Ty = getTypes().ConvertType(getContext().IntTy);
-    Ty = llvm::ArrayType::get(Ty, 0);
-
-    switch (CFRuntime) {
-    default: break;
-    case LangOptions::CoreFoundationABI::Swift: LLVM_FALLTHROUGH;
-    case LangOptions::CoreFoundationABI::Swift5_0:
-      CFConstantStringClassName =
-          Triple.isOSDarwin() ? "$s15SwiftFoundation19_NSCFConstantStringCN"
-                              : "$s10Foundation19_NSCFConstantStringCN";
-      Ty = IntPtrTy;
-      break;
-    case LangOptions::CoreFoundationABI::Swift4_2:
-      CFConstantStringClassName =
-          Triple.isOSDarwin() ? "$S15SwiftFoundation19_NSCFConstantStringCN"
-                              : "$S10Foundation19_NSCFConstantStringCN";
-      Ty = IntPtrTy;
-      break;
-    case LangOptions::CoreFoundationABI::Swift4_1:
-      CFConstantStringClassName =
-          Triple.isOSDarwin() ? "__T015SwiftFoundation19_NSCFConstantStringCN"
-                              : "__T010Foundation19_NSCFConstantStringCN";
-      Ty = IntPtrTy;
-      break;
-    }
-
-    llvm::Constant *C = CreateRuntimeVariable(Ty, CFConstantStringClassName);
-
-    if (Triple.isOSBinFormatELF() || Triple.isOSBinFormatCOFF()) {
-      llvm::GlobalValue *GV = nullptr;
-
-      if ((GV = dyn_cast<llvm::GlobalValue>(C))) {
-        IdentifierInfo &II = Context.Idents.get(GV->getName());
-        TranslationUnitDecl *TUDecl = Context.getTranslationUnitDecl();
-        DeclContext *DC = TranslationUnitDecl::castToDeclContext(TUDecl);
-
-        const VarDecl *VD = nullptr;
-        for (const auto &Result : DC->lookup(&II))
-          if ((VD = dyn_cast<VarDecl>(Result)))
-            break;
-
-        if (Triple.isOSBinFormatELF()) {
-          if (!VD)
-            GV->setLinkage(llvm::GlobalValue::ExternalLinkage);
-        } else {
-          GV->setLinkage(llvm::GlobalValue::ExternalLinkage);
-          if (!VD || !VD->hasAttr<DLLExportAttr>())
-            GV->setDLLStorageClass(llvm::GlobalValue::DLLImportStorageClass);
-          else
-            GV->setDLLStorageClass(llvm::GlobalValue::DLLExportStorageClass);
-        }
-
-        setDSOLocal(GV);
-      }
-    }
-
-    // Decay array -> ptr
-    CFConstantStringClassRef =
-        IsSwiftABI ? llvm::ConstantExpr::getPtrToInt(C, Ty)
-                   : llvm::ConstantExpr::getGetElementPtr(Ty, C, Zeros);
-  }
-
-  QualType CFTy = Context.getCFConstantStringType();
-
-  auto *STy = cast<llvm::StructType>(getTypes().ConvertType(CFTy));
-
-  ConstantInitBuilder Builder(*this);
-  auto Fields = Builder.beginStruct(STy);
-
-  // Class pointer.
-  Fields.add(cast<llvm::ConstantExpr>(CFConstantStringClassRef));
-
-  // Flags.
-  if (IsSwiftABI) {
-    Fields.addInt(IntPtrTy, IsSwift4_1 ? 0x05 : 0x01);
-    Fields.addInt(Int64Ty, isUTF16 ? 0x07d0 : 0x07c8);
-  } else {
-    Fields.addInt(IntTy, isUTF16 ? 0x07d0 : 0x07C8);
-  }
-
-  // String pointer.
-  llvm::Constant *C = nullptr;
-  if (isUTF16) {
-    auto Arr = llvm::makeArrayRef(
-        reinterpret_cast<uint16_t *>(const_cast<char *>(Entry.first().data())),
-        Entry.first().size() / 2);
-    C = llvm::ConstantDataArray::get(VMContext, Arr);
-  } else {
-    C = llvm::ConstantDataArray::getString(VMContext, Entry.first());
-  }
-
-  // Note: -fwritable-strings doesn't make the backing store strings of
-  // CFStrings writable. (See <rdar://problem/10657500>)
-  auto *GV =
-      new llvm::GlobalVariable(getModule(), C->getType(), /*isConstant=*/true,
-                               llvm::GlobalValue::PrivateLinkage, C, ".str");
-  GV->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-  // Don't enforce the target's minimum global alignment, since the only use
-  // of the string is via this class initializer.
-  CharUnits Align = isUTF16 ? Context.getTypeAlignInChars(Context.ShortTy)
-                            : Context.getTypeAlignInChars(Context.CharTy);
-  GV->setAlignment(Align.getQuantity());
-
-  // FIXME: We set the section explicitly to avoid a bug in ld64 224.1.
-  // Without it LLVM can merge the string with a non unnamed_addr one during
-  // LTO.  Doing that changes the section it ends in, which surprises ld64.
-  if (Triple.isOSBinFormatMachO())
-    GV->setSection(isUTF16 ? "__TEXT,__ustring"
-                           : "__TEXT,__cstring,cstring_literals");
-  // Make sure the literal ends up in .rodata to allow for safe ICF and for
-  // the static linker to adjust permissions to read-only later on.
-  else if (Triple.isOSBinFormatELF())
-    GV->setSection(".rodata");
-
-  // String.
-  llvm::Constant *Str =
-      llvm::ConstantExpr::getGetElementPtr(GV->getValueType(), GV, Zeros);
-
-  if (isUTF16)
-    // Cast the UTF16 string to the correct type.
-    Str = llvm::ConstantExpr::getBitCast(Str, Int8PtrTy);
-  Fields.add(Str);
-
-  // String length.
-  llvm::IntegerType *LengthTy =
-      llvm::IntegerType::get(getModule().getContext(),
-                             Context.getTargetInfo().getLongWidth());
-  if (IsSwiftABI) {
-    if (CFRuntime == LangOptions::CoreFoundationABI::Swift4_1 ||
-        CFRuntime == LangOptions::CoreFoundationABI::Swift4_2)
-      LengthTy = Int32Ty;
-    else
-      LengthTy = IntPtrTy;
-  }
-  Fields.addInt(LengthTy, StringLength);
-
-  CharUnits Alignment = getPointerAlign();
-
-  // The struct.
-  GV = Fields.finishAndCreateGlobal("_unnamed_cfstring_", Alignment,
-                                    /*isConstant=*/false,
-                                    llvm::GlobalVariable::PrivateLinkage);
-  GV->addAttribute("objc_arc_inert");
-  switch (Triple.getObjectFormat()) {
-  case llvm::Triple::UnknownObjectFormat:
-    llvm_unreachable("unknown file format");
-  case llvm::Triple::XCOFF:
-    llvm_unreachable("XCOFF is not yet implemented");
-  case llvm::Triple::COFF:
-  case llvm::Triple::ELF:
-  case llvm::Triple::Wasm:
-    GV->setSection("cfstring");
-    break;
-  case llvm::Triple::MachO:
-    GV->setSection("__DATA,__cfstring");
-    break;
-  }
-  Entry.second = GV;
-
-  return ConstantAddress(GV, Alignment);
-}
-
-bool CodeGenModule::getExpressionLocationsEnabled() const {
-  return !CodeGenOpts.EmitCodeView || CodeGenOpts.DebugColumnInfo;
-}
-
-QualType CodeGenModule::getObjCFastEnumerationStateType() {
-  if (ObjCFastEnumerationStateType.isNull()) {
-    RecordDecl *D = Context.buildImplicitRecord("__objcFastEnumerationState");
-    D->startDefinition();
-
-    QualType FieldTypes[] = {
-      Context.UnsignedLongTy,
-      Context.getPointerType(Context.getObjCIdType()),
-      Context.getPointerType(Context.UnsignedLongTy),
-      Context.getConstantArrayType(Context.UnsignedLongTy,
-                           llvm::APInt(32, 5), ArrayType::Normal, 0)
-    };
-
-    for (size_t i = 0; i < 4; ++i) {
-      FieldDecl *Field = FieldDecl::Create(Context,
-                                           D,
-                                           SourceLocation(),
-                                           SourceLocation(), nullptr,
-                                           FieldTypes[i], /*TInfo=*/nullptr,
-                                           /*BitWidth=*/nullptr,
-                                           /*Mutable=*/false,
-                                           ICIS_NoInit);
-      Field->setAccess(AS_public);
-      D->addDecl(Field);
-    }
-
-    D->completeDefinition();
-    ObjCFastEnumerationStateType = Context.getTagDeclType(D);
-  }
-
-  return ObjCFastEnumerationStateType;
-}
-
-llvm::Constant *
-CodeGenModule::GetConstantArrayFromStringLiteral(const StringLiteral *E) {
-  assert(!E->getType()->isPointerType() && "Strings are always arrays");
-
-  // Don't emit it as the address of the string, emit the string data itself
-  // as an inline array.
-  if (E->getCharByteWidth() == 1) {
-    SmallString<64> Str(E->getString());
-
-    // Resize the string to the right size, which is indicated by its type.
-    const ConstantArrayType *CAT = Context.getAsConstantArrayType(E->getType());
-    Str.resize(CAT->getSize().getZExtValue());
-    return llvm::ConstantDataArray::getString(VMContext, Str, false);
-  }
-
-  auto *AType = cast<llvm::ArrayType>(getTypes().ConvertType(E->getType()));
-  llvm::Type *ElemTy = AType->getElementType();
-  unsigned NumElements = AType->getNumElements();
-
-  // Wide strings have either 2-byte or 4-byte elements.
-  if (ElemTy->getPrimitiveSizeInBits() == 16) {
-    SmallVector<uint16_t, 32> Elements;
-    Elements.reserve(NumElements);
-
-    for(unsigned i = 0, e = E->getLength(); i != e; ++i)
-      Elements.push_back(E->getCodeUnit(i));
-    Elements.resize(NumElements);
-    return llvm::ConstantDataArray::get(VMContext, Elements);
-  }
-
-  assert(ElemTy->getPrimitiveSizeInBits() == 32);
-  SmallVector<uint32_t, 32> Elements;
-  Elements.reserve(NumElements);
-
-  for(unsigned i = 0, e = E->getLength(); i != e; ++i)
-    Elements.push_back(E->getCodeUnit(i));
-  Elements.resize(NumElements);
-  return llvm::ConstantDataArray::get(VMContext, Elements);
-}
-
-static llvm::GlobalVariable *
-GenerateStringLiteral(llvm::Constant *C, llvm::GlobalValue::LinkageTypes LT,
-                      CodeGenModule &CGM, StringRef GlobalName,
-                      CharUnits Alignment) {
-  unsigned AddrSpace = CGM.getContext().getTargetAddressSpace(
-      CGM.getStringLiteralAddressSpace());
-
-  llvm::Module &M = CGM.getModule();
-  // Create a global variable for this string
-  auto *GV = new llvm::GlobalVariable(
-      M, C->getType(), !CGM.getLangOpts().WritableStrings, LT, C, GlobalName,
-      nullptr, llvm::GlobalVariable::NotThreadLocal, AddrSpace);
-  GV->setAlignment(Alignment.getQuantity());
-  GV->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global);
-  if (GV->isWeakForLinker()) {
-    assert(CGM.supportsCOMDAT() && "Only COFF uses weak string literals");
-    GV->setComdat(M.getOrInsertComdat(GV->getName()));
-  }
-  CGM.setDSOLocal(GV);
-
-  return GV;
-}
-
-/// GetAddrOfConstantStringFromLiteral - Return a pointer to a
-/// constant array for the given string literal.
-ConstantAddress
-CodeGenModule::GetAddrOfConstantStringFromLiteral(const StringLiteral *S,
-                                                  StringRef Name) {
-  CharUnits Alignment = getContext().getAlignOfGlobalVarInChars(S->getType());
-
-  llvm::Constant *C = GetConstantArrayFromStringLiteral(S);
-  llvm::GlobalVariable **Entry = nullptr;
-  if (!LangOpts.WritableStrings) {
-    Entry = &ConstantStringMap[C];
-    if (auto GV = *Entry) {
-      if (Alignment.getQuantity() > GV->getAlignment())
-        GV->setAlignment(Alignment.getQuantity());
-      return ConstantAddress(castStringLiteralToDefaultAddressSpace(*this, GV),
-                             Alignment);
-    }
-  }
-
-  SmallString<256> MangledNameBuffer;
-  StringRef GlobalVariableName;
-  llvm::GlobalValue::LinkageTypes LT;
-
-  // Mangle the string literal if that's how the ABI merges duplicate strings.
-  // Don't do it if they are writable, since we don't want writes in one TU to
-  // affect strings in another.
-  if (getCXXABI().getMangleContext().shouldMangleStringLiteral(S) &&
-      !LangOpts.WritableStrings) {
-    llvm::raw_svector_ostream Out(MangledNameBuffer);
-    getCXXABI().getMangleContext().mangleStringLiteral(S, Out);
-    LT = llvm::GlobalValue::LinkOnceODRLinkage;
-    GlobalVariableName = MangledNameBuffer;
-  } else {
-    LT = llvm::GlobalValue::PrivateLinkage;
-    GlobalVariableName = Name;
-  }
-
-  auto GV = GenerateStringLiteral(C, LT, *this, GlobalVariableName, Alignment);
-  if (Entry)
-    *Entry = GV;
-
-  SanitizerMD->reportGlobalToASan(GV, S->getStrTokenLoc(0), "<string literal>",
-                                  QualType());
-
-  return ConstantAddress(castStringLiteralToDefaultAddressSpace(*this, GV),
-                         Alignment);
-}
-
-/// GetAddrOfConstantStringFromObjCEncode - Return a pointer to a constant
-/// array for the given ObjCEncodeExpr node.
-ConstantAddress
-CodeGenModule::GetAddrOfConstantStringFromObjCEncode(const ObjCEncodeExpr *E) {
-  std::string Str;
-  getContext().getObjCEncodingForType(E->getEncodedType(), Str);
-
-  return GetAddrOfConstantCString(Str);
-}
-
-/// GetAddrOfConstantCString - Returns a pointer to a character array containing
-/// the literal and a terminating '\0' character.
-/// The result has pointer to array type.
-ConstantAddress CodeGenModule::GetAddrOfConstantCString(
-    const std::string &Str, const char *GlobalName) {
-  StringRef StrWithNull(Str.c_str(), Str.size() + 1);
-  CharUnits Alignment =
-    getContext().getAlignOfGlobalVarInChars(getContext().CharTy);
-
-  llvm::Constant *C =
-      llvm::ConstantDataArray::getString(getLLVMContext(), StrWithNull, false);
-
-  // Don't share any string literals if strings aren't constant.
-  llvm::GlobalVariable **Entry = nullptr;
-  if (!LangOpts.WritableStrings) {
-    Entry = &ConstantStringMap[C];
-    if (auto GV = *Entry) {
-      if (Alignment.getQuantity() > GV->getAlignment())
-        GV->setAlignment(Alignment.getQuantity());
-      return ConstantAddress(castStringLiteralToDefaultAddressSpace(*this, GV),
-                             Alignment);
-    }
-  }
-
-  // Get the default prefix if a name wasn't specified.
-  if (!GlobalName)
-    GlobalName = ".str";
-  // Create a global variable for this.
-  auto GV = GenerateStringLiteral(C, llvm::GlobalValue::PrivateLinkage, *this,
-                                  GlobalName, Alignment);
-  if (Entry)
-    *Entry = GV;
-
-  return ConstantAddress(castStringLiteralToDefaultAddressSpace(*this, GV),
-                         Alignment);
-}
-
-ConstantAddress CodeGenModule::GetAddrOfGlobalTemporary(
-    const MaterializeTemporaryExpr *E, const Expr *Init) {
-  assert((E->getStorageDuration() == SD_Static ||
-          E->getStorageDuration() == SD_Thread) && "not a global temporary");
-  const auto *VD = cast<VarDecl>(E->getExtendingDecl());
-
-  // If we're not materializing a subobject of the temporary, keep the
-  // cv-qualifiers from the type of the MaterializeTemporaryExpr.
-  QualType MaterializedType = Init->getType();
-  if (Init == E->GetTemporaryExpr())
-    MaterializedType = E->getType();
-
-  CharUnits Align = getContext().getTypeAlignInChars(MaterializedType);
-
-  if (llvm::Constant *Slot = MaterializedGlobalTemporaryMap[E])
-    return ConstantAddress(Slot, Align);
-
-  // FIXME: If an externally-visible declaration extends multiple temporaries,
-  // we need to give each temporary the same name in every translation unit (and
-  // we also need to make the temporaries externally-visible).
-  SmallString<256> Name;
-  llvm::raw_svector_ostream Out(Name);
-  getCXXABI().getMangleContext().mangleReferenceTemporary(
-      VD, E->getManglingNumber(), Out);
-
-  APValue *Value = nullptr;
-  if (E->getStorageDuration() == SD_Static) {
-    // We might have a cached constant initializer for this temporary. Note
-    // that this might have a different value from the value computed by
-    // evaluating the initializer if the surrounding constant expression
-    // modifies the temporary.
-    Value = getContext().getMaterializedTemporaryValue(E, false);
-    if (Value && Value->isAbsent())
-      Value = nullptr;
-  }
-
-  // Try evaluating it now, it might have a constant initializer.
-  Expr::EvalResult EvalResult;
-  if (!Value && Init->EvaluateAsRValue(EvalResult, getContext()) &&
-      !EvalResult.hasSideEffects())
-    Value = &EvalResult.Val;
-
-  LangAS AddrSpace =
-      VD ? GetGlobalVarAddressSpace(VD) : MaterializedType.getAddressSpace();
-
-  Optional<ConstantEmitter> emitter;
-  llvm::Constant *InitialValue = nullptr;
-  bool Constant = false;
-  llvm::Type *Type;
-  if (Value) {
-    // The temporary has a constant initializer, use it.
-    emitter.emplace(*this);
-    InitialValue = emitter->emitForInitializer(*Value, AddrSpace,
-                                               MaterializedType);
-    Constant = isTypeConstant(MaterializedType, /*ExcludeCtor*/Value);
-    Type = InitialValue->getType();
-  } else {
-    // No initializer, the initialization will be provided when we
-    // initialize the declaration which performed lifetime extension.
-    Type = getTypes().ConvertTypeForMem(MaterializedType);
-  }
-
-  // Create a global variable for this lifetime-extended temporary.
-  llvm::GlobalValue::LinkageTypes Linkage =
-      getLLVMLinkageVarDefinition(VD, Constant);
-  if (Linkage == llvm::GlobalVariable::ExternalLinkage) {
-    const VarDecl *InitVD;
-    if (VD->isStaticDataMember() && VD->getAnyInitializer(InitVD) &&
-        isa<CXXRecordDecl>(InitVD->getLexicalDeclContext())) {
-      // Temporaries defined inside a class get linkonce_odr linkage because the
-      // class can be defined in multiple translation units.
-      Linkage = llvm::GlobalVariable::LinkOnceODRLinkage;
-    } else {
-      // There is no need for this temporary to have external linkage if the
-      // VarDecl has external linkage.
-      Linkage = llvm::GlobalVariable::InternalLinkage;
-    }
-  }
-  auto TargetAS = getContext().getTargetAddressSpace(AddrSpace);
-  auto *GV = new llvm::GlobalVariable(
-      getModule(), Type, Constant, Linkage, InitialValue, Name.c_str(),
-      /*InsertBefore=*/nullptr, llvm::GlobalVariable::NotThreadLocal, TargetAS);
-  if (emitter) emitter->finalize(GV);
-  setGVProperties(GV, VD);
-  GV->setAlignment(Align.getQuantity());
-  if (supportsCOMDAT() && GV->isWeakForLinker())
-    GV->setComdat(TheModule.getOrInsertComdat(GV->getName()));
-  if (VD->getTLSKind())
-    setTLSMode(GV, *VD);
-  llvm::Constant *CV = GV;
-  if (AddrSpace != LangAS::Default)
-    CV = getTargetCodeGenInfo().performAddrSpaceCast(
-        *this, GV, AddrSpace, LangAS::Default,
-        Type->getPointerTo(
-            getContext().getTargetAddressSpace(LangAS::Default)));
-  MaterializedGlobalTemporaryMap[E] = CV;
-  return ConstantAddress(CV, Align);
-}
-
-/// EmitObjCPropertyImplementations - Emit information for synthesized
-/// properties for an implementation.
-void CodeGenModule::EmitObjCPropertyImplementations(const
-                                                    ObjCImplementationDecl *D) {
-  for (const auto *PID : D->property_impls()) {
-    // Dynamic is just for type-checking.
-    if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize) {
-      ObjCPropertyDecl *PD = PID->getPropertyDecl();
-
-      // Determine which methods need to be implemented, some may have
-      // been overridden. Note that ::isPropertyAccessor is not the method
-      // we want, that just indicates if the decl came from a
-      // property. What we want to know is if the method is defined in
-      // this implementation.
-      if (!D->getInstanceMethod(PD->getGetterName()))
-        CodeGenFunction(*this).GenerateObjCGetter(
-                                 const_cast<ObjCImplementationDecl *>(D), PID);
-      if (!PD->isReadOnly() &&
-          !D->getInstanceMethod(PD->getSetterName()))
-        CodeGenFunction(*this).GenerateObjCSetter(
-                                 const_cast<ObjCImplementationDecl *>(D), PID);
-    }
-  }
-}
-
-static bool needsDestructMethod(ObjCImplementationDecl *impl) {
-  const ObjCInterfaceDecl *iface = impl->getClassInterface();
-  for (const ObjCIvarDecl *ivar = iface->all_declared_ivar_begin();
-       ivar; ivar = ivar->getNextIvar())
-    if (ivar->getType().isDestructedType())
-      return true;
-
-  return false;
-}
-
-static bool AllTrivialInitializers(CodeGenModule &CGM,
-                                   ObjCImplementationDecl *D) {
-  CodeGenFunction CGF(CGM);
-  for (ObjCImplementationDecl::init_iterator B = D->init_begin(),
-       E = D->init_end(); B != E; ++B) {
-    CXXCtorInitializer *CtorInitExp = *B;
-    Expr *Init = CtorInitExp->getInit();
-    if (!CGF.isTrivialInitializer(Init))
-      return false;
-  }
-  return true;
-}
-
-/// EmitObjCIvarInitializations - Emit information for ivar initialization
-/// for an implementation.
-void CodeGenModule::EmitObjCIvarInitializations(ObjCImplementationDecl *D) {
-  // We might need a .cxx_destruct even if we don't have any ivar initializers.
-  if (needsDestructMethod(D)) {
-    IdentifierInfo *II = &getContext().Idents.get(".cxx_destruct");
-    Selector cxxSelector = getContext().Selectors.getSelector(0, &II);
-    ObjCMethodDecl *DTORMethod =
-      ObjCMethodDecl::Create(getContext(), D->getLocation(), D->getLocation(),
-                             cxxSelector, getContext().VoidTy, nullptr, D,
-                             /*isInstance=*/true, /*isVariadic=*/false,
-                          /*isPropertyAccessor=*/true, /*isImplicitlyDeclared=*/true,
-                             /*isDefined=*/false, ObjCMethodDecl::Required);
-    D->addInstanceMethod(DTORMethod);
-    CodeGenFunction(*this).GenerateObjCCtorDtorMethod(D, DTORMethod, false);
-    D->setHasDestructors(true);
-  }
-
-  // If the implementation doesn't have any ivar initializers, we don't need
-  // a .cxx_construct.
-  if (D->getNumIvarInitializers() == 0 ||
-      AllTrivialInitializers(*this, D))
-    return;
-
-  IdentifierInfo *II = &getContext().Idents.get(".cxx_construct");
-  Selector cxxSelector = getContext().Selectors.getSelector(0, &II);
-  // The constructor returns 'self'.
-  ObjCMethodDecl *CTORMethod = ObjCMethodDecl::Create(getContext(),
-                                                D->getLocation(),
-                                                D->getLocation(),
-                                                cxxSelector,
-                                                getContext().getObjCIdType(),
-                                                nullptr, D, /*isInstance=*/true,
-                                                /*isVariadic=*/false,
-                                                /*isPropertyAccessor=*/true,
-                                                /*isImplicitlyDeclared=*/true,
-                                                /*isDefined=*/false,
-                                                ObjCMethodDecl::Required);
-  D->addInstanceMethod(CTORMethod);
-  CodeGenFunction(*this).GenerateObjCCtorDtorMethod(D, CTORMethod, true);
-  D->setHasNonZeroConstructors(true);
-}
-
-// EmitLinkageSpec - Emit all declarations in a linkage spec.
-void CodeGenModule::EmitLinkageSpec(const LinkageSpecDecl *LSD) {
-  if (LSD->getLanguage() != LinkageSpecDecl::lang_c &&
-      LSD->getLanguage() != LinkageSpecDecl::lang_cxx) {
-    ErrorUnsupported(LSD, "linkage spec");
-    return;
-  }
-
-  EmitDeclContext(LSD);
-}
-
-void CodeGenModule::EmitDeclContext(const DeclContext *DC) {
-  for (auto *I : DC->decls()) {
-    // Unlike other DeclContexts, the contents of an ObjCImplDecl at TU scope
-    // are themselves considered "top-level", so EmitTopLevelDecl on an
-    // ObjCImplDecl does not recursively visit them. We need to do that in
-    // case they're nested inside another construct (LinkageSpecDecl /
-    // ExportDecl) that does stop them from being considered "top-level".
-    if (auto *OID = dyn_cast<ObjCImplDecl>(I)) {
-      for (auto *M : OID->methods())
-        EmitTopLevelDecl(M);
-    }
-
-    EmitTopLevelDecl(I);
-  }
-}
-
-/// EmitTopLevelDecl - Emit code for a single top level declaration.
-void CodeGenModule::EmitTopLevelDecl(Decl *D) {
-  // Ignore dependent declarations.
-  if (D->isTemplated())
-    return;
-
-  switch (D->getKind()) {
-  case Decl::CXXConversion:
-  case Decl::CXXMethod:
-  case Decl::Function:
-    EmitGlobal(cast<FunctionDecl>(D));
-    // Always provide some coverage mapping
-    // even for the functions that aren't emitted.
-    AddDeferredUnusedCoverageMapping(D);
-    break;
-
-  case Decl::CXXDeductionGuide:
-    // Function-like, but does not result in code emission.
-    break;
-
-  case Decl::Var:
-  case Decl::Decomposition:
-  case Decl::VarTemplateSpecialization:
-    EmitGlobal(cast<VarDecl>(D));
-    if (auto *DD = dyn_cast<DecompositionDecl>(D))
-      for (auto *B : DD->bindings())
-        if (auto *HD = B->getHoldingVar())
-          EmitGlobal(HD);
-    break;
-
-  // Indirect fields from global anonymous structs and unions can be
-  // ignored; only the actual variable requires IR gen support.
-  case Decl::IndirectField:
-    break;
-
-  // C++ Decls
-  case Decl::Namespace:
-    EmitDeclContext(cast<NamespaceDecl>(D));
-    break;
-  case Decl::ClassTemplateSpecialization: {
-    const auto *Spec = cast<ClassTemplateSpecializationDecl>(D);
-    if (DebugInfo &&
-        Spec->getSpecializationKind() == TSK_ExplicitInstantiationDefinition &&
-        Spec->hasDefinition())
-      DebugInfo->completeTemplateDefinition(*Spec);
-  } LLVM_FALLTHROUGH;
-  case Decl::CXXRecord:
-    if (DebugInfo) {
-      if (auto *ES = D->getASTContext().getExternalSource())
-        if (ES->hasExternalDefinitions(D) == ExternalASTSource::EK_Never)
-          DebugInfo->completeUnusedClass(cast<CXXRecordDecl>(*D));
-    }
-    // Emit any static data members, they may be definitions.
-    for (auto *I : cast<CXXRecordDecl>(D)->decls())
-      if (isa<VarDecl>(I) || isa<CXXRecordDecl>(I))
-        EmitTopLevelDecl(I);
-    break;
-    // No code generation needed.
-  case Decl::UsingShadow:
-  case Decl::ClassTemplate:
-  case Decl::VarTemplate:
-  case Decl::Concept:
-  case Decl::VarTemplatePartialSpecialization:
-  case Decl::FunctionTemplate:
-  case Decl::TypeAliasTemplate:
-  case Decl::Block:
-  case Decl::Empty:
-  case Decl::Binding:
-    break;
-  case Decl::Using:          // using X; [C++]
-    if (CGDebugInfo *DI = getModuleDebugInfo())
-        DI->EmitUsingDecl(cast<UsingDecl>(*D));
-    return;
-  case Decl::NamespaceAlias:
-    if (CGDebugInfo *DI = getModuleDebugInfo())
-        DI->EmitNamespaceAlias(cast<NamespaceAliasDecl>(*D));
-    return;
-  case Decl::UsingDirective: // using namespace X; [C++]
-    if (CGDebugInfo *DI = getModuleDebugInfo())
-      DI->EmitUsingDirective(cast<UsingDirectiveDecl>(*D));
-    return;
-  case Decl::CXXConstructor:
-    getCXXABI().EmitCXXConstructors(cast<CXXConstructorDecl>(D));
-    break;
-  case Decl::CXXDestructor:
-    getCXXABI().EmitCXXDestructors(cast<CXXDestructorDecl>(D));
-    break;
-
-  case Decl::StaticAssert:
-    // Nothing to do.
-    break;
-
-  // Objective-C Decls
-
-  // Forward declarations, no (immediate) code generation.
-  case Decl::ObjCInterface:
-  case Decl::ObjCCategory:
-    break;
-
-  case Decl::ObjCProtocol: {
-    auto *Proto = cast<ObjCProtocolDecl>(D);
-    if (Proto->isThisDeclarationADefinition())
-      ObjCRuntime->GenerateProtocol(Proto);
-    break;
-  }
-
-  case Decl::ObjCCategoryImpl:
-    // Categories have properties but don't support synthesize so we
-    // can ignore them here.
-    ObjCRuntime->GenerateCategory(cast<ObjCCategoryImplDecl>(D));
-    break;
-
-  case Decl::ObjCImplementation: {
-    auto *OMD = cast<ObjCImplementationDecl>(D);
-    EmitObjCPropertyImplementations(OMD);
-    EmitObjCIvarInitializations(OMD);
-    ObjCRuntime->GenerateClass(OMD);
-    // Emit global variable debug information.
-    if (CGDebugInfo *DI = getModuleDebugInfo())
-      if (getCodeGenOpts().getDebugInfo() >= codegenoptions::LimitedDebugInfo)
-        DI->getOrCreateInterfaceType(getContext().getObjCInterfaceType(
-            OMD->getClassInterface()), OMD->getLocation());
-    break;
-  }
-  case Decl::ObjCMethod: {
-    auto *OMD = cast<ObjCMethodDecl>(D);
-    // If this is not a prototype, emit the body.
-    if (OMD->getBody())
-      CodeGenFunction(*this).GenerateObjCMethod(OMD);
-    break;
-  }
-  case Decl::ObjCCompatibleAlias:
-    ObjCRuntime->RegisterAlias(cast<ObjCCompatibleAliasDecl>(D));
-    break;
-
-  case Decl::PragmaComment: {
-    const auto *PCD = cast<PragmaCommentDecl>(D);
-    switch (PCD->getCommentKind()) {
-    case PCK_Unknown:
-      llvm_unreachable("unexpected pragma comment kind");
-    case PCK_Linker:
-      AppendLinkerOptions(PCD->getArg());
-      break;
-    case PCK_Lib:
-        AddDependentLib(PCD->getArg());
-      break;
-    case PCK_Compiler:
-    case PCK_ExeStr:
-    case PCK_User:
-      break; // We ignore all of these.
-    }
-    break;
-  }
-
-  case Decl::PragmaDetectMismatch: {
-    const auto *PDMD = cast<PragmaDetectMismatchDecl>(D);
-    AddDetectMismatch(PDMD->getName(), PDMD->getValue());
-    break;
-  }
-
-  case Decl::LinkageSpec:
-    EmitLinkageSpec(cast<LinkageSpecDecl>(D));
-    break;
-
-  case Decl::FileScopeAsm: {
-    // File-scope asm is ignored during device-side CUDA compilation.
-    if (LangOpts.CUDA && LangOpts.CUDAIsDevice)
-      break;
-    // File-scope asm is ignored during device-side OpenMP compilation.
-    if (LangOpts.OpenMPIsDevice)
-      break;
-    auto *AD = cast<FileScopeAsmDecl>(D);
-    getModule().appendModuleInlineAsm(AD->getAsmString()->getString());
-    break;
-  }
-
-  case Decl::Import: {
-    auto *Import = cast<ImportDecl>(D);
-
-    // If we've already imported this module, we're done.
-    if (!ImportedModules.insert(Import->getImportedModule()))
-      break;
-
-    // Emit debug information for direct imports.
-    if (!Import->getImportedOwningModule()) {
-      if (CGDebugInfo *DI = getModuleDebugInfo())
-        DI->EmitImportDecl(*Import);
-    }
-
-    // Find all of the submodules and emit the module initializers.
-    llvm::SmallPtrSet<clang::Module *, 16> Visited;
-    SmallVector<clang::Module *, 16> Stack;
-    Visited.insert(Import->getImportedModule());
-    Stack.push_back(Import->getImportedModule());
-
-    while (!Stack.empty()) {
-      clang::Module *Mod = Stack.pop_back_val();
-      if (!EmittedModuleInitializers.insert(Mod).second)
-        continue;
-
-      for (auto *D : Context.getModuleInitializers(Mod))
-        EmitTopLevelDecl(D);
-
-      // Visit the submodules of this module.
-      for (clang::Module::submodule_iterator Sub = Mod->submodule_begin(),
-                                             SubEnd = Mod->submodule_end();
-           Sub != SubEnd; ++Sub) {
-        // Skip explicit children; they need to be explicitly imported to emit
-        // the initializers.
-        if ((*Sub)->IsExplicit)
-          continue;
-
-        if (Visited.insert(*Sub).second)
-          Stack.push_back(*Sub);
-      }
-    }
-    break;
-  }
-
-  case Decl::Export:
-    EmitDeclContext(cast<ExportDecl>(D));
-    break;
-
-  case Decl::OMPThreadPrivate:
-    EmitOMPThreadPrivateDecl(cast<OMPThreadPrivateDecl>(D));
-    break;
-
-  case Decl::OMPAllocate:
-    break;
-
-  case Decl::OMPDeclareReduction:
-    EmitOMPDeclareReduction(cast<OMPDeclareReductionDecl>(D));
-    break;
-
-  case Decl::OMPDeclareMapper:
-    EmitOMPDeclareMapper(cast<OMPDeclareMapperDecl>(D));
-    break;
-
-  case Decl::OMPRequires:
-    EmitOMPRequiresDecl(cast<OMPRequiresDecl>(D));
-    break;
-
-  default:
-    // Make sure we handled everything we should, every other kind is a
-    // non-top-level decl.  FIXME: Would be nice to have an isTopLevelDeclKind
-    // function. Need to recode Decl::Kind to do that easily.
-    assert(isa<TypeDecl>(D) && "Unsupported decl kind");
-    break;
-  }
-}
-
-void CodeGenModule::AddDeferredUnusedCoverageMapping(Decl *D) {
-  // Do we need to generate coverage mapping?
-  if (!CodeGenOpts.CoverageMapping)
-    return;
-  switch (D->getKind()) {
-  case Decl::CXXConversion:
-  case Decl::CXXMethod:
-  case Decl::Function:
-  case Decl::ObjCMethod:
-  case Decl::CXXConstructor:
-  case Decl::CXXDestructor: {
-    if (!cast<FunctionDecl>(D)->doesThisDeclarationHaveABody())
-      return;
-    SourceManager &SM = getContext().getSourceManager();
-    if (LimitedCoverage && SM.getMainFileID() != SM.getFileID(D->getBeginLoc()))
-      return;
-    auto I = DeferredEmptyCoverageMappingDecls.find(D);
-    if (I == DeferredEmptyCoverageMappingDecls.end())
-      DeferredEmptyCoverageMappingDecls[D] = true;
-    break;
-  }
-  default:
-    break;
-  };
-}
-
-void CodeGenModule::ClearUnusedCoverageMapping(const Decl *D) {
-  // Do we need to generate coverage mapping?
-  if (!CodeGenOpts.CoverageMapping)
-    return;
-  if (const auto *Fn = dyn_cast<FunctionDecl>(D)) {
-    if (Fn->isTemplateInstantiation())
-      ClearUnusedCoverageMapping(Fn->getTemplateInstantiationPattern());
-  }
-  auto I = DeferredEmptyCoverageMappingDecls.find(D);
-  if (I == DeferredEmptyCoverageMappingDecls.end())
-    DeferredEmptyCoverageMappingDecls[D] = false;
-  else
-    I->second = false;
-}
-
-void CodeGenModule::EmitDeferredUnusedCoverageMappings() {
-  // We call takeVector() here to avoid use-after-free.
-  // FIXME: DeferredEmptyCoverageMappingDecls is getting mutated because
-  // we deserialize function bodies to emit coverage info for them, and that
-  // deserializes more declarations. How should we handle that case?
-  for (const auto &Entry : DeferredEmptyCoverageMappingDecls.takeVector()) {
-    if (!Entry.second)
-      continue;
-    const Decl *D = Entry.first;
-    switch (D->getKind()) {
-    case Decl::CXXConversion:
-    case Decl::CXXMethod:
-    case Decl::Function:
-    case Decl::ObjCMethod: {
-      CodeGenPGO PGO(*this);
-      GlobalDecl GD(cast<FunctionDecl>(D));
-      PGO.emitEmptyCounterMapping(D, getMangledName(GD),
-                                  getFunctionLinkage(GD));
-      break;
-    }
-    case Decl::CXXConstructor: {
-      CodeGenPGO PGO(*this);
-      GlobalDecl GD(cast<CXXConstructorDecl>(D), Ctor_Base);
-      PGO.emitEmptyCounterMapping(D, getMangledName(GD),
-                                  getFunctionLinkage(GD));
-      break;
-    }
-    case Decl::CXXDestructor: {
-      CodeGenPGO PGO(*this);
-      GlobalDecl GD(cast<CXXDestructorDecl>(D), Dtor_Base);
-      PGO.emitEmptyCounterMapping(D, getMangledName(GD),
-                                  getFunctionLinkage(GD));
-      break;
-    }
-    default:
-      break;
-    };
-  }
-}
-
-/// Turns the given pointer into a constant.
-static llvm::Constant *GetPointerConstant(llvm::LLVMContext &Context,
-                                          const void *Ptr) {
-  uintptr_t PtrInt = reinterpret_cast<uintptr_t>(Ptr);
-  llvm::Type *i64 = llvm::Type::getInt64Ty(Context);
-  return llvm::ConstantInt::get(i64, PtrInt);
-}
-
-static void EmitGlobalDeclMetadata(CodeGenModule &CGM,
-                                   llvm::NamedMDNode *&GlobalMetadata,
-                                   GlobalDecl D,
-                                   llvm::GlobalValue *Addr) {
-  if (!GlobalMetadata)
-    GlobalMetadata =
-      CGM.getModule().getOrInsertNamedMetadata("clang.global.decl.ptrs");
-
-  // TODO: should we report variant information for ctors/dtors?
-  llvm::Metadata *Ops[] = {llvm::ConstantAsMetadata::get(Addr),
-                           llvm::ConstantAsMetadata::get(GetPointerConstant(
-                               CGM.getLLVMContext(), D.getDecl()))};
-  GlobalMetadata->addOperand(llvm::MDNode::get(CGM.getLLVMContext(), Ops));
-}
-
-/// For each function which is declared within an extern "C" region and marked
-/// as 'used', but has internal linkage, create an alias from the unmangled
-/// name to the mangled name if possible. People expect to be able to refer
-/// to such functions with an unmangled name from inline assembly within the
-/// same translation unit.
-void CodeGenModule::EmitStaticExternCAliases() {
-  if (!getTargetCodeGenInfo().shouldEmitStaticExternCAliases())
-    return;
-  for (auto &I : StaticExternCValues) {
-    IdentifierInfo *Name = I.first;
-    llvm::GlobalValue *Val = I.second;
-    if (Val && !getModule().getNamedValue(Name->getName()))
-      addUsedGlobal(llvm::GlobalAlias::create(Name->getName(), Val));
-  }
-}
-
-bool CodeGenModule::lookupRepresentativeDecl(StringRef MangledName,
-                                             GlobalDecl &Result) const {
-  auto Res = Manglings.find(MangledName);
-  if (Res == Manglings.end())
-    return false;
-  Result = Res->getValue();
-  return true;
-}
-
-/// Emits metadata nodes associating all the global values in the
-/// current module with the Decls they came from.  This is useful for
-/// projects using IR gen as a subroutine.
-///
-/// Since there's currently no way to associate an MDNode directly
-/// with an llvm::GlobalValue, we create a global named metadata
-/// with the name 'clang.global.decl.ptrs'.
-void CodeGenModule::EmitDeclMetadata() {
-  llvm::NamedMDNode *GlobalMetadata = nullptr;
-
-  for (auto &I : MangledDeclNames) {
-    llvm::GlobalValue *Addr = getModule().getNamedValue(I.second);
-    // Some mangled names don't necessarily have an associated GlobalValue
-    // in this module, e.g. if we mangled it for DebugInfo.
-    if (Addr)
-      EmitGlobalDeclMetadata(*this, GlobalMetadata, I.first, Addr);
-  }
-}
-
-/// Emits metadata nodes for all the local variables in the current
-/// function.
-void CodeGenFunction::EmitDeclMetadata() {
-  if (LocalDeclMap.empty()) return;
-
-  llvm::LLVMContext &Context = getLLVMContext();
-
-  // Find the unique metadata ID for this name.
-  unsigned DeclPtrKind = Context.getMDKindID("clang.decl.ptr");
-
-  llvm::NamedMDNode *GlobalMetadata = nullptr;
-
-  for (auto &I : LocalDeclMap) {
-    const Decl *D = I.first;
-    llvm::Value *Addr = I.second.getPointer();
-    if (auto *Alloca = dyn_cast<llvm::AllocaInst>(Addr)) {
-      llvm::Value *DAddr = GetPointerConstant(getLLVMContext(), D);
-      Alloca->setMetadata(
-          DeclPtrKind, llvm::MDNode::get(
-                           Context, llvm::ValueAsMetadata::getConstant(DAddr)));
-    } else if (auto *GV = dyn_cast<llvm::GlobalValue>(Addr)) {
-      GlobalDecl GD = GlobalDecl(cast<VarDecl>(D));
-      EmitGlobalDeclMetadata(CGM, GlobalMetadata, GD, GV);
-    }
-  }
-}
-
-void CodeGenModule::EmitVersionIdentMetadata() {
-  llvm::NamedMDNode *IdentMetadata =
-    TheModule.getOrInsertNamedMetadata("llvm.ident");
-  std::string Version = getClangFullVersion();
-  llvm::LLVMContext &Ctx = TheModule.getContext();
-
-  llvm::Metadata *IdentNode[] = {llvm::MDString::get(Ctx, Version)};
-  IdentMetadata->addOperand(llvm::MDNode::get(Ctx, IdentNode));
-}
-
-void CodeGenModule::EmitCommandLineMetadata() {
-  llvm::NamedMDNode *CommandLineMetadata =
-    TheModule.getOrInsertNamedMetadata("llvm.commandline");
-  std::string CommandLine = getCodeGenOpts().RecordCommandLine;
-  llvm::LLVMContext &Ctx = TheModule.getContext();
-
-  llvm::Metadata *CommandLineNode[] = {llvm::MDString::get(Ctx, CommandLine)};
-  CommandLineMetadata->addOperand(llvm::MDNode::get(Ctx, CommandLineNode));
-}
-
-void CodeGenModule::EmitTargetMetadata() {
-  // Warning, new MangledDeclNames may be appended within this loop.
-  // We rely on MapVector insertions adding new elements to the end
-  // of the container.
-  // FIXME: Move this loop into the one target that needs it, and only
-  // loop over those declarations for which we couldn't emit the target
-  // metadata when we emitted the declaration.
-  for (unsigned I = 0; I != MangledDeclNames.size(); ++I) {
-    auto Val = *(MangledDeclNames.begin() + I);
-    const Decl *D = Val.first.getDecl()->getMostRecentDecl();
-    llvm::GlobalValue *GV = GetGlobalValue(Val.second);
-    getTargetCodeGenInfo().emitTargetMD(D, GV, *this);
-  }
-}
-
-void CodeGenModule::EmitCoverageFile() {
-  if (getCodeGenOpts().CoverageDataFile.empty() &&
-      getCodeGenOpts().CoverageNotesFile.empty())
-    return;
-
-  llvm::NamedMDNode *CUNode = TheModule.getNamedMetadata("llvm.dbg.cu");
-  if (!CUNode)
-    return;
-
-  llvm::NamedMDNode *GCov = TheModule.getOrInsertNamedMetadata("llvm.gcov");
-  llvm::LLVMContext &Ctx = TheModule.getContext();
-  auto *CoverageDataFile =
-      llvm::MDString::get(Ctx, getCodeGenOpts().CoverageDataFile);
-  auto *CoverageNotesFile =
-      llvm::MDString::get(Ctx, getCodeGenOpts().CoverageNotesFile);
-  for (int i = 0, e = CUNode->getNumOperands(); i != e; ++i) {
-    llvm::MDNode *CU = CUNode->getOperand(i);
-    llvm::Metadata *Elts[] = {CoverageNotesFile, CoverageDataFile, CU};
-    GCov->addOperand(llvm::MDNode::get(Ctx, Elts));
-  }
-}
-
-llvm::Constant *CodeGenModule::EmitUuidofInitializer(StringRef Uuid) {
-  // Sema has checked that all uuid strings are of the form
-  // "12345678-1234-1234-1234-1234567890ab".
-  assert(Uuid.size() == 36);
-  for (unsigned i = 0; i < 36; ++i) {
-    if (i == 8 || i == 13 || i == 18 || i == 23) assert(Uuid[i] == '-');
-    else                                         assert(isHexDigit(Uuid[i]));
-  }
-
-  // The starts of all bytes of Field3 in Uuid. Field 3 is "1234-1234567890ab".
-  const unsigned Field3ValueOffsets[8] = { 19, 21, 24, 26, 28, 30, 32, 34 };
-
-  llvm::Constant *Field3[8];
-  for (unsigned Idx = 0; Idx < 8; ++Idx)
-    Field3[Idx] = llvm::ConstantInt::get(
-        Int8Ty, Uuid.substr(Field3ValueOffsets[Idx], 2), 16);
-
-  llvm::Constant *Fields[4] = {
-    llvm::ConstantInt::get(Int32Ty, Uuid.substr(0,  8), 16),
-    llvm::ConstantInt::get(Int16Ty, Uuid.substr(9,  4), 16),
-    llvm::ConstantInt::get(Int16Ty, Uuid.substr(14, 4), 16),
-    llvm::ConstantArray::get(llvm::ArrayType::get(Int8Ty, 8), Field3)
-  };
-
-  return llvm::ConstantStruct::getAnon(Fields);
-}
-
-llvm::Constant *CodeGenModule::GetAddrOfRTTIDescriptor(QualType Ty,
-                                                       bool ForEH) {
-  // Return a bogus pointer if RTTI is disabled, unless it's for EH.
-  // FIXME: should we even be calling this method if RTTI is disabled
-  // and it's not for EH?
-  if ((!ForEH && !getLangOpts().RTTI) || getLangOpts().CUDAIsDevice)
-    return llvm::Constant::getNullValue(Int8PtrTy);
-
-  if (ForEH && Ty->isObjCObjectPointerType() &&
-      LangOpts.ObjCRuntime.isGNUFamily())
-    return ObjCRuntime->GetEHType(Ty);
-
-  return getCXXABI().getAddrOfRTTIDescriptor(Ty);
-}
-
-void CodeGenModule::EmitOMPThreadPrivateDecl(const OMPThreadPrivateDecl *D) {
-  // Do not emit threadprivates in simd-only mode.
-  if (LangOpts.OpenMP && LangOpts.OpenMPSimd)
-    return;
-  for (auto RefExpr : D->varlists()) {
-    auto *VD = cast<VarDecl>(cast<DeclRefExpr>(RefExpr)->getDecl());
-    bool PerformInit =
-        VD->getAnyInitializer() &&
-        !VD->getAnyInitializer()->isConstantInitializer(getContext(),
-                                                        /*ForRef=*/false);
-
-    Address Addr(GetAddrOfGlobalVar(VD), getContext().getDeclAlign(VD));
-    if (auto InitFunction = getOpenMPRuntime().emitThreadPrivateVarDefinition(
-            VD, Addr, RefExpr->getBeginLoc(), PerformInit))
-      CXXGlobalInits.push_back(InitFunction);
-  }
-}
-
-llvm::Metadata *
-CodeGenModule::CreateMetadataIdentifierImpl(QualType T, MetadataTypeMap &Map,
-                                            StringRef Suffix) {
-  llvm::Metadata *&InternalId = Map[T.getCanonicalType()];
-  if (InternalId)
-    return InternalId;
-
-  if (isExternallyVisible(T->getLinkage())) {
-    std::string OutName;
-    llvm::raw_string_ostream Out(OutName);
-    getCXXABI().getMangleContext().mangleTypeName(T, Out);
-    Out << Suffix;
-
-    InternalId = llvm::MDString::get(getLLVMContext(), Out.str());
-  } else {
-    InternalId = llvm::MDNode::getDistinct(getLLVMContext(),
-                                           llvm::ArrayRef<llvm::Metadata *>());
-  }
-
-  return InternalId;
-}
-
-llvm::Metadata *CodeGenModule::CreateMetadataIdentifierForType(QualType T) {
-  return CreateMetadataIdentifierImpl(T, MetadataIdMap, "");
-}
-
-llvm::Metadata *
-CodeGenModule::CreateMetadataIdentifierForVirtualMemPtrType(QualType T) {
-  return CreateMetadataIdentifierImpl(T, VirtualMetadataIdMap, ".virtual");
-}
-
-// Generalize pointer types to a void pointer with the qualifiers of the
-// originally pointed-to type, e.g. 'const char *' and 'char * const *'
-// generalize to 'const void *' while 'char *' and 'const char **' generalize to
-// 'void *'.
-static QualType GeneralizeType(ASTContext &Ctx, QualType Ty) {
-  if (!Ty->isPointerType())
-    return Ty;
-
-  return Ctx.getPointerType(
-      QualType(Ctx.VoidTy).withCVRQualifiers(
-          Ty->getPointeeType().getCVRQualifiers()));
-}
-
-// Apply type generalization to a FunctionType's return and argument types
-static QualType GeneralizeFunctionType(ASTContext &Ctx, QualType Ty) {
-  if (auto *FnType = Ty->getAs<FunctionProtoType>()) {
-    SmallVector<QualType, 8> GeneralizedParams;
-    for (auto &Param : FnType->param_types())
-      GeneralizedParams.push_back(GeneralizeType(Ctx, Param));
-
-    return Ctx.getFunctionType(
-        GeneralizeType(Ctx, FnType->getReturnType()),
-        GeneralizedParams, FnType->getExtProtoInfo());
-  }
-
-  if (auto *FnType = Ty->getAs<FunctionNoProtoType>())
-    return Ctx.getFunctionNoProtoType(
-        GeneralizeType(Ctx, FnType->getReturnType()));
-
-  llvm_unreachable("Encountered unknown FunctionType");
-}
-
-llvm::Metadata *CodeGenModule::CreateMetadataIdentifierGeneralized(QualType T) {
-  return CreateMetadataIdentifierImpl(GeneralizeFunctionType(getContext(), T),
-                                      GeneralizedMetadataIdMap, ".generalized");
-}
-
-/// Returns whether this module needs the "all-vtables" type identifier.
-bool CodeGenModule::NeedAllVtablesTypeId() const {
-  // Returns true if at least one of vtable-based CFI checkers is enabled and
-  // is not in the trapping mode.
-  return ((LangOpts.Sanitize.has(SanitizerKind::CFIVCall) &&
-           !CodeGenOpts.SanitizeTrap.has(SanitizerKind::CFIVCall)) ||
-          (LangOpts.Sanitize.has(SanitizerKind::CFINVCall) &&
-           !CodeGenOpts.SanitizeTrap.has(SanitizerKind::CFINVCall)) ||
-          (LangOpts.Sanitize.has(SanitizerKind::CFIDerivedCast) &&
-           !CodeGenOpts.SanitizeTrap.has(SanitizerKind::CFIDerivedCast)) ||
-          (LangOpts.Sanitize.has(SanitizerKind::CFIUnrelatedCast) &&
-           !CodeGenOpts.SanitizeTrap.has(SanitizerKind::CFIUnrelatedCast)));
-}
-
-void CodeGenModule::AddVTableTypeMetadata(llvm::GlobalVariable *VTable,
-                                          CharUnits Offset,
-                                          const CXXRecordDecl *RD) {
-  llvm::Metadata *MD =
-      CreateMetadataIdentifierForType(QualType(RD->getTypeForDecl(), 0));
-  VTable->addTypeMetadata(Offset.getQuantity(), MD);
-
-  if (CodeGenOpts.SanitizeCfiCrossDso)
-    if (auto CrossDsoTypeId = CreateCrossDsoCfiTypeId(MD))
-      VTable->addTypeMetadata(Offset.getQuantity(),
-                              llvm::ConstantAsMetadata::get(CrossDsoTypeId));
-
-  if (NeedAllVtablesTypeId()) {
-    llvm::Metadata *MD = llvm::MDString::get(getLLVMContext(), "all-vtables");
-    VTable->addTypeMetadata(Offset.getQuantity(), MD);
-  }
-}
-
-TargetAttr::ParsedTargetAttr CodeGenModule::filterFunctionTargetAttrs(const TargetAttr *TD) {
-  assert(TD != nullptr);
-  TargetAttr::ParsedTargetAttr ParsedAttr = TD->parse();
-
-  ParsedAttr.Features.erase(
-      llvm::remove_if(ParsedAttr.Features,
-                      [&](const std::string &Feat) {
-                        return !Target.isValidFeatureName(
-                            StringRef{Feat}.substr(1));
-                      }),
-      ParsedAttr.Features.end());
-  return ParsedAttr;
-}
-
-
-// Fills in the supplied string map with the set of target features for the
-// passed in function.
-void CodeGenModule::getFunctionFeatureMap(llvm::StringMap<bool> &FeatureMap,
-                                          GlobalDecl GD) {
-  StringRef TargetCPU = Target.getTargetOpts().CPU;
-  const FunctionDecl *FD = GD.getDecl()->getAsFunction();
-  if (const auto *TD = FD->getAttr<TargetAttr>()) {
-    TargetAttr::ParsedTargetAttr ParsedAttr = filterFunctionTargetAttrs(TD);
-
-    // Make a copy of the features as passed on the command line into the
-    // beginning of the additional features from the function to override.
-    ParsedAttr.Features.insert(ParsedAttr.Features.begin(),
-                            Target.getTargetOpts().FeaturesAsWritten.begin(),
-                            Target.getTargetOpts().FeaturesAsWritten.end());
-
-    if (ParsedAttr.Architecture != "" &&
-        Target.isValidCPUName(ParsedAttr.Architecture))
-      TargetCPU = ParsedAttr.Architecture;
-
-    // Now populate the feature map, first with the TargetCPU which is either
-    // the default or a new one from the target attribute string. Then we'll use
-    // the passed in features (FeaturesAsWritten) along with the new ones from
-    // the attribute.
-    Target.initFeatureMap(FeatureMap, getDiags(), TargetCPU,
-                          ParsedAttr.Features);
-  } else if (const auto *SD = FD->getAttr<CPUSpecificAttr>()) {
-    llvm::SmallVector<StringRef, 32> FeaturesTmp;
-    Target.getCPUSpecificCPUDispatchFeatures(
-        SD->getCPUName(GD.getMultiVersionIndex())->getName(), FeaturesTmp);
-    std::vector<std::string> Features(FeaturesTmp.begin(), FeaturesTmp.end());
-    Target.initFeatureMap(FeatureMap, getDiags(), TargetCPU, Features);
-  } else {
-    Target.initFeatureMap(FeatureMap, getDiags(), TargetCPU,
-                          Target.getTargetOpts().Features);
-  }
-}
-
-llvm::SanitizerStatReport &CodeGenModule::getSanStats() {
-  if (!SanStats)
-    SanStats = llvm::make_unique<llvm::SanitizerStatReport>(&getModule());
-
-  return *SanStats;
-}
-llvm::Value *
-CodeGenModule::createOpenCLIntToSamplerConversion(const Expr *E,
-                                                  CodeGenFunction &CGF) {
-  llvm::Constant *C = ConstantEmitter(CGF).emitAbstract(E, E->getType());
-  auto SamplerT = getOpenCLRuntime().getSamplerType(E->getType().getTypePtr());
-  auto FTy = llvm::FunctionType::get(SamplerT, {C->getType()}, false);
-  return CGF.Builder.CreateCall(CreateRuntimeFunction(FTy,
-                                "__translate_sampler_initializer"),
-                                {C});
-}