1 files changed, 0 insertions, 712 deletions

diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/AccelTable.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/AccelTable.cpp
deleted file mode 100644
index b1b7921ea976..000000000000
--- a/contrib/llvm/lib/CodeGen/AsmPrinter/AccelTable.cpp
+++ /dev/null
@@ -1,712 +0,0 @@
-//===- llvm/CodeGen/AsmPrinter/AccelTable.cpp - Accelerator Tables --------===//
-//
-// 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 file contains support for writing accelerator tables.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/CodeGen/AccelTable.h"
-#include "DwarfCompileUnit.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/StringMap.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/BinaryFormat/Dwarf.h"
-#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/DIE.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/Target/TargetLoweringObjectFile.h"
-#include <algorithm>
-#include <cstddef>
-#include <cstdint>
-#include <limits>
-#include <vector>
-
-using namespace llvm;
-
-void AccelTableBase::computeBucketCount() {
-  // First get the number of unique hashes.
-  std::vector<uint32_t> Uniques;
-  Uniques.reserve(Entries.size());
-  for (const auto &E : Entries)
-    Uniques.push_back(E.second.HashValue);
-  array_pod_sort(Uniques.begin(), Uniques.end());
-  std::vector<uint32_t>::iterator P =
-      std::unique(Uniques.begin(), Uniques.end());
-
-  UniqueHashCount = std::distance(Uniques.begin(), P);
-
-  if (UniqueHashCount > 1024)
-    BucketCount = UniqueHashCount / 4;
-  else if (UniqueHashCount > 16)
-    BucketCount = UniqueHashCount / 2;
-  else
-    BucketCount = std::max<uint32_t>(UniqueHashCount, 1);
-}
-
-void AccelTableBase::finalize(AsmPrinter *Asm, StringRef Prefix) {
-  // Create the individual hash data outputs.
-  for (auto &E : Entries) {
-    // Unique the entries.
-    llvm::stable_sort(E.second.Values,
-                      [](const AccelTableData *A, const AccelTableData *B) {
-                        return *A < *B;
-                      });
-    E.second.Values.erase(
-        std::unique(E.second.Values.begin(), E.second.Values.end()),
-        E.second.Values.end());
-  }
-
-  // Figure out how many buckets we need, then compute the bucket contents and
-  // the final ordering. The hashes and offsets can be emitted by walking these
-  // data structures. We add temporary symbols to the data so they can be
-  // referenced when emitting the offsets.
-  computeBucketCount();
-
-  // Compute bucket contents and final ordering.
-  Buckets.resize(BucketCount);
-  for (auto &E : Entries) {
-    uint32_t Bucket = E.second.HashValue % BucketCount;
-    Buckets[Bucket].push_back(&E.second);
-    E.second.Sym = Asm->createTempSymbol(Prefix);
-  }
-
-  // Sort the contents of the buckets by hash value so that hash collisions end
-  // up together. Stable sort makes testing easier and doesn't cost much more.
-  for (auto &Bucket : Buckets)
-    llvm::stable_sort(Bucket, [](HashData *LHS, HashData *RHS) {
-      return LHS->HashValue < RHS->HashValue;
-    });
-}
-
-namespace {
-/// Base class for writing out Accelerator tables. It holds the common
-/// functionality for the two Accelerator table types.
-class AccelTableWriter {
-protected:
-  AsmPrinter *const Asm;          ///< Destination.
-  const AccelTableBase &Contents; ///< Data to emit.
-
-  /// Controls whether to emit duplicate hash and offset table entries for names
-  /// with identical hashes. Apple tables don't emit duplicate entries, DWARF v5
-  /// tables do.
-  const bool SkipIdenticalHashes;
-
-  void emitHashes() const;
-
-  /// Emit offsets to lists of entries with identical names. The offsets are
-  /// relative to the Base argument.
-  void emitOffsets(const MCSymbol *Base) const;
-
-public:
-  AccelTableWriter(AsmPrinter *Asm, const AccelTableBase &Contents,
-                   bool SkipIdenticalHashes)
-      : Asm(Asm), Contents(Contents), SkipIdenticalHashes(SkipIdenticalHashes) {
-  }
-};
-
-class AppleAccelTableWriter : public AccelTableWriter {
-  using Atom = AppleAccelTableData::Atom;
-
-  /// The fixed header of an Apple Accelerator Table.
-  struct Header {
-    uint32_t Magic = MagicHash;
-    uint16_t Version = 1;
-    uint16_t HashFunction = dwarf::DW_hash_function_djb;
-    uint32_t BucketCount;
-    uint32_t HashCount;
-    uint32_t HeaderDataLength;
-
-    /// 'HASH' magic value to detect endianness.
-    static const uint32_t MagicHash = 0x48415348;
-
-    Header(uint32_t BucketCount, uint32_t UniqueHashCount, uint32_t DataLength)
-        : BucketCount(BucketCount), HashCount(UniqueHashCount),
-          HeaderDataLength(DataLength) {}
-
-    void emit(AsmPrinter *Asm) const;
-#ifndef NDEBUG
-    void print(raw_ostream &OS) const;
-    void dump() const { print(dbgs()); }
-#endif
-  };
-
-  /// The HeaderData describes the structure of an Apple accelerator table
-  /// through a list of Atoms.
-  struct HeaderData {
-    /// In the case of data that is referenced via DW_FORM_ref_* the offset
-    /// base is used to describe the offset for all forms in the list of atoms.
-    uint32_t DieOffsetBase;
-
-    const SmallVector<Atom, 4> Atoms;
-
-    HeaderData(ArrayRef<Atom> AtomList, uint32_t Offset = 0)
-        : DieOffsetBase(Offset), Atoms(AtomList.begin(), AtomList.end()) {}
-
-    void emit(AsmPrinter *Asm) const;
-#ifndef NDEBUG
-    void print(raw_ostream &OS) const;
-    void dump() const { print(dbgs()); }
-#endif
-  };
-
-  Header Header;
-  HeaderData HeaderData;
-  const MCSymbol *SecBegin;
-
-  void emitBuckets() const;
-  void emitData() const;
-
-public:
-  AppleAccelTableWriter(AsmPrinter *Asm, const AccelTableBase &Contents,
-                        ArrayRef<Atom> Atoms, const MCSymbol *SecBegin)
-      : AccelTableWriter(Asm, Contents, true),
-        Header(Contents.getBucketCount(), Contents.getUniqueHashCount(),
-               8 + (Atoms.size() * 4)),
-        HeaderData(Atoms), SecBegin(SecBegin) {}
-
-  void emit() const;
-
-#ifndef NDEBUG
-  void print(raw_ostream &OS) const;
-  void dump() const { print(dbgs()); }
-#endif
-};
-
-/// Class responsible for emitting a DWARF v5 Accelerator Table. The only
-/// public function is emit(), which performs the actual emission.
-///
-/// The class is templated in its data type. This allows us to emit both dyamic
-/// and static data entries. A callback abstract the logic to provide a CU
-/// index for a given entry, which is different per data type, but identical
-/// for every entry in the same table.
-template <typename DataT>
-class Dwarf5AccelTableWriter : public AccelTableWriter {
-  struct Header {
-    uint32_t UnitLength = 0;
-    uint16_t Version = 5;
-    uint16_t Padding = 0;
-    uint32_t CompUnitCount;
-    uint32_t LocalTypeUnitCount = 0;
-    uint32_t ForeignTypeUnitCount = 0;
-    uint32_t BucketCount;
-    uint32_t NameCount;
-    uint32_t AbbrevTableSize = 0;
-    uint32_t AugmentationStringSize = sizeof(AugmentationString);
-    char AugmentationString[8] = {'L', 'L', 'V', 'M', '0', '7', '0', '0'};
-
-    Header(uint32_t CompUnitCount, uint32_t BucketCount, uint32_t NameCount)
-        : CompUnitCount(CompUnitCount), BucketCount(BucketCount),
-          NameCount(NameCount) {}
-
-    void emit(const Dwarf5AccelTableWriter &Ctx) const;
-  };
-  struct AttributeEncoding {
-    dwarf::Index Index;
-    dwarf::Form Form;
-  };
-
-  Header Header;
-  DenseMap<uint32_t, SmallVector<AttributeEncoding, 2>> Abbreviations;
-  ArrayRef<MCSymbol *> CompUnits;
-  llvm::function_ref<unsigned(const DataT &)> getCUIndexForEntry;
-  MCSymbol *ContributionStart = Asm->createTempSymbol("names_start");
-  MCSymbol *ContributionEnd = Asm->createTempSymbol("names_end");
-  MCSymbol *AbbrevStart = Asm->createTempSymbol("names_abbrev_start");
-  MCSymbol *AbbrevEnd = Asm->createTempSymbol("names_abbrev_end");
-  MCSymbol *EntryPool = Asm->createTempSymbol("names_entries");
-
-  DenseSet<uint32_t> getUniqueTags() const;
-
-  // Right now, we emit uniform attributes for all tags.
-  SmallVector<AttributeEncoding, 2> getUniformAttributes() const;
-
-  void emitCUList() const;
-  void emitBuckets() const;
-  void emitStringOffsets() const;
-  void emitAbbrevs() const;
-  void emitEntry(const DataT &Entry) const;
-  void emitData() const;
-
-public:
-  Dwarf5AccelTableWriter(
-      AsmPrinter *Asm, const AccelTableBase &Contents,
-      ArrayRef<MCSymbol *> CompUnits,
-      llvm::function_ref<unsigned(const DataT &)> GetCUIndexForEntry);
-
-  void emit() const;
-};
-} // namespace
-
-void AccelTableWriter::emitHashes() const {
-  uint64_t PrevHash = std::numeric_limits<uint64_t>::max();
-  unsigned BucketIdx = 0;
-  for (auto &Bucket : Contents.getBuckets()) {
-    for (auto &Hash : Bucket) {
-      uint32_t HashValue = Hash->HashValue;
-      if (SkipIdenticalHashes && PrevHash == HashValue)
-        continue;
-      Asm->OutStreamer->AddComment("Hash in Bucket " + Twine(BucketIdx));
-      Asm->emitInt32(HashValue);
-      PrevHash = HashValue;
-    }
-    BucketIdx++;
-  }
-}
-
-void AccelTableWriter::emitOffsets(const MCSymbol *Base) const {
-  const auto &Buckets = Contents.getBuckets();
-  uint64_t PrevHash = std::numeric_limits<uint64_t>::max();
-  for (size_t i = 0, e = Buckets.size(); i < e; ++i) {
-    for (auto *Hash : Buckets[i]) {
-      uint32_t HashValue = Hash->HashValue;
-      if (SkipIdenticalHashes && PrevHash == HashValue)
-        continue;
-      PrevHash = HashValue;
-      Asm->OutStreamer->AddComment("Offset in Bucket " + Twine(i));
-      Asm->EmitLabelDifference(Hash->Sym, Base, sizeof(uint32_t));
-    }
-  }
-}
-
-void AppleAccelTableWriter::Header::emit(AsmPrinter *Asm) const {
-  Asm->OutStreamer->AddComment("Header Magic");
-  Asm->emitInt32(Magic);
-  Asm->OutStreamer->AddComment("Header Version");
-  Asm->emitInt16(Version);
-  Asm->OutStreamer->AddComment("Header Hash Function");
-  Asm->emitInt16(HashFunction);
-  Asm->OutStreamer->AddComment("Header Bucket Count");
-  Asm->emitInt32(BucketCount);
-  Asm->OutStreamer->AddComment("Header Hash Count");
-  Asm->emitInt32(HashCount);
-  Asm->OutStreamer->AddComment("Header Data Length");
-  Asm->emitInt32(HeaderDataLength);
-}
-
-void AppleAccelTableWriter::HeaderData::emit(AsmPrinter *Asm) const {
-  Asm->OutStreamer->AddComment("HeaderData Die Offset Base");
-  Asm->emitInt32(DieOffsetBase);
-  Asm->OutStreamer->AddComment("HeaderData Atom Count");
-  Asm->emitInt32(Atoms.size());
-
-  for (const Atom &A : Atoms) {
-    Asm->OutStreamer->AddComment(dwarf::AtomTypeString(A.Type));
-    Asm->emitInt16(A.Type);
-    Asm->OutStreamer->AddComment(dwarf::FormEncodingString(A.Form));
-    Asm->emitInt16(A.Form);
-  }
-}
-
-void AppleAccelTableWriter::emitBuckets() const {
-  const auto &Buckets = Contents.getBuckets();
-  unsigned index = 0;
-  for (size_t i = 0, e = Buckets.size(); i < e; ++i) {
-    Asm->OutStreamer->AddComment("Bucket " + Twine(i));
-    if (!Buckets[i].empty())
-      Asm->emitInt32(index);
-    else
-      Asm->emitInt32(std::numeric_limits<uint32_t>::max());
-    // Buckets point in the list of hashes, not to the data. Do not increment
-    // the index multiple times in case of hash collisions.
-    uint64_t PrevHash = std::numeric_limits<uint64_t>::max();
-    for (auto *HD : Buckets[i]) {
-      uint32_t HashValue = HD->HashValue;
-      if (PrevHash != HashValue)
-        ++index;
-      PrevHash = HashValue;
-    }
-  }
-}
-
-void AppleAccelTableWriter::emitData() const {
-  const auto &Buckets = Contents.getBuckets();
-  for (size_t i = 0, e = Buckets.size(); i < e; ++i) {
-    uint64_t PrevHash = std::numeric_limits<uint64_t>::max();
-    for (auto &Hash : Buckets[i]) {
-      // Terminate the previous entry if there is no hash collision with the
-      // current one.
-      if (PrevHash != std::numeric_limits<uint64_t>::max() &&
-          PrevHash != Hash->HashValue)
-        Asm->emitInt32(0);
-      // Remember to emit the label for our offset.
-      Asm->OutStreamer->EmitLabel(Hash->Sym);
-      Asm->OutStreamer->AddComment(Hash->Name.getString());
-      Asm->emitDwarfStringOffset(Hash->Name);
-      Asm->OutStreamer->AddComment("Num DIEs");
-      Asm->emitInt32(Hash->Values.size());
-      for (const auto *V : Hash->Values)
-        static_cast<const AppleAccelTableData *>(V)->emit(Asm);
-      PrevHash = Hash->HashValue;
-    }
-    // Emit the final end marker for the bucket.
-    if (!Buckets[i].empty())
-      Asm->emitInt32(0);
-  }
-}
-
-void AppleAccelTableWriter::emit() const {
-  Header.emit(Asm);
-  HeaderData.emit(Asm);
-  emitBuckets();
-  emitHashes();
-  emitOffsets(SecBegin);
-  emitData();
-}
-
-template <typename DataT>
-void Dwarf5AccelTableWriter<DataT>::Header::emit(
-    const Dwarf5AccelTableWriter &Ctx) const {
-  assert(CompUnitCount > 0 && "Index must have at least one CU.");
-
-  AsmPrinter *Asm = Ctx.Asm;
-  Asm->OutStreamer->AddComment("Header: unit length");
-  Asm->EmitLabelDifference(Ctx.ContributionEnd, Ctx.ContributionStart,
-                           sizeof(uint32_t));
-  Asm->OutStreamer->EmitLabel(Ctx.ContributionStart);
-  Asm->OutStreamer->AddComment("Header: version");
-  Asm->emitInt16(Version);
-  Asm->OutStreamer->AddComment("Header: padding");
-  Asm->emitInt16(Padding);
-  Asm->OutStreamer->AddComment("Header: compilation unit count");
-  Asm->emitInt32(CompUnitCount);
-  Asm->OutStreamer->AddComment("Header: local type unit count");
-  Asm->emitInt32(LocalTypeUnitCount);
-  Asm->OutStreamer->AddComment("Header: foreign type unit count");
-  Asm->emitInt32(ForeignTypeUnitCount);
-  Asm->OutStreamer->AddComment("Header: bucket count");
-  Asm->emitInt32(BucketCount);
-  Asm->OutStreamer->AddComment("Header: name count");
-  Asm->emitInt32(NameCount);
-  Asm->OutStreamer->AddComment("Header: abbreviation table size");
-  Asm->EmitLabelDifference(Ctx.AbbrevEnd, Ctx.AbbrevStart, sizeof(uint32_t));
-  Asm->OutStreamer->AddComment("Header: augmentation string size");
-  assert(AugmentationStringSize % 4 == 0);
-  Asm->emitInt32(AugmentationStringSize);
-  Asm->OutStreamer->AddComment("Header: augmentation string");
-  Asm->OutStreamer->EmitBytes({AugmentationString, AugmentationStringSize});
-}
-
-template <typename DataT>
-DenseSet<uint32_t> Dwarf5AccelTableWriter<DataT>::getUniqueTags() const {
-  DenseSet<uint32_t> UniqueTags;
-  for (auto &Bucket : Contents.getBuckets()) {
-    for (auto *Hash : Bucket) {
-      for (auto *Value : Hash->Values) {
-        unsigned Tag = static_cast<const DataT *>(Value)->getDieTag();
-        UniqueTags.insert(Tag);
-      }
-    }
-  }
-  return UniqueTags;
-}
-
-template <typename DataT>
-SmallVector<typename Dwarf5AccelTableWriter<DataT>::AttributeEncoding, 2>
-Dwarf5AccelTableWriter<DataT>::getUniformAttributes() const {
-  SmallVector<AttributeEncoding, 2> UA;
-  if (CompUnits.size() > 1) {
-    size_t LargestCUIndex = CompUnits.size() - 1;
-    dwarf::Form Form = DIEInteger::BestForm(/*IsSigned*/ false, LargestCUIndex);
-    UA.push_back({dwarf::DW_IDX_compile_unit, Form});
-  }
-  UA.push_back({dwarf::DW_IDX_die_offset, dwarf::DW_FORM_ref4});
-  return UA;
-}
-
-template <typename DataT>
-void Dwarf5AccelTableWriter<DataT>::emitCUList() const {
-  for (const auto &CU : enumerate(CompUnits)) {
-    Asm->OutStreamer->AddComment("Compilation unit " + Twine(CU.index()));
-    Asm->emitDwarfSymbolReference(CU.value());
-  }
-}
-
-template <typename DataT>
-void Dwarf5AccelTableWriter<DataT>::emitBuckets() const {
-  uint32_t Index = 1;
-  for (const auto &Bucket : enumerate(Contents.getBuckets())) {
-    Asm->OutStreamer->AddComment("Bucket " + Twine(Bucket.index()));
-    Asm->emitInt32(Bucket.value().empty() ? 0 : Index);
-    Index += Bucket.value().size();
-  }
-}
-
-template <typename DataT>
-void Dwarf5AccelTableWriter<DataT>::emitStringOffsets() const {
-  for (const auto &Bucket : enumerate(Contents.getBuckets())) {
-    for (auto *Hash : Bucket.value()) {
-      DwarfStringPoolEntryRef String = Hash->Name;
-      Asm->OutStreamer->AddComment("String in Bucket " + Twine(Bucket.index()) +
-                                   ": " + String.getString());
-      Asm->emitDwarfStringOffset(String);
-    }
-  }
-}
-
-template <typename DataT>
-void Dwarf5AccelTableWriter<DataT>::emitAbbrevs() const {
-  Asm->OutStreamer->EmitLabel(AbbrevStart);
-  for (const auto &Abbrev : Abbreviations) {
-    Asm->OutStreamer->AddComment("Abbrev code");
-    assert(Abbrev.first != 0);
-    Asm->EmitULEB128(Abbrev.first);
-    Asm->OutStreamer->AddComment(dwarf::TagString(Abbrev.first));
-    Asm->EmitULEB128(Abbrev.first);
-    for (const auto &AttrEnc : Abbrev.second) {
-      Asm->EmitULEB128(AttrEnc.Index, dwarf::IndexString(AttrEnc.Index).data());
-      Asm->EmitULEB128(AttrEnc.Form,
-                       dwarf::FormEncodingString(AttrEnc.Form).data());
-    }
-    Asm->EmitULEB128(0, "End of abbrev");
-    Asm->EmitULEB128(0, "End of abbrev");
-  }
-  Asm->EmitULEB128(0, "End of abbrev list");
-  Asm->OutStreamer->EmitLabel(AbbrevEnd);
-}
-
-template <typename DataT>
-void Dwarf5AccelTableWriter<DataT>::emitEntry(const DataT &Entry) const {
-  auto AbbrevIt = Abbreviations.find(Entry.getDieTag());
-  assert(AbbrevIt != Abbreviations.end() &&
-         "Why wasn't this abbrev generated?");
-
-  Asm->EmitULEB128(AbbrevIt->first, "Abbreviation code");
-  for (const auto &AttrEnc : AbbrevIt->second) {
-    Asm->OutStreamer->AddComment(dwarf::IndexString(AttrEnc.Index));
-    switch (AttrEnc.Index) {
-    case dwarf::DW_IDX_compile_unit: {
-      DIEInteger ID(getCUIndexForEntry(Entry));
-      ID.EmitValue(Asm, AttrEnc.Form);
-      break;
-    }
-    case dwarf::DW_IDX_die_offset:
-      assert(AttrEnc.Form == dwarf::DW_FORM_ref4);
-      Asm->emitInt32(Entry.getDieOffset());
-      break;
-    default:
-      llvm_unreachable("Unexpected index attribute!");
-    }
-  }
-}
-
-template <typename DataT> void Dwarf5AccelTableWriter<DataT>::emitData() const {
-  Asm->OutStreamer->EmitLabel(EntryPool);
-  for (auto &Bucket : Contents.getBuckets()) {
-    for (auto *Hash : Bucket) {
-      // Remember to emit the label for our offset.
-      Asm->OutStreamer->EmitLabel(Hash->Sym);
-      for (const auto *Value : Hash->Values)
-        emitEntry(*static_cast<const DataT *>(Value));
-      Asm->OutStreamer->AddComment("End of list: " + Hash->Name.getString());
-      Asm->emitInt32(0);
-    }
-  }
-}
-
-template <typename DataT>
-Dwarf5AccelTableWriter<DataT>::Dwarf5AccelTableWriter(
-    AsmPrinter *Asm, const AccelTableBase &Contents,
-    ArrayRef<MCSymbol *> CompUnits,
-    llvm::function_ref<unsigned(const DataT &)> getCUIndexForEntry)
-    : AccelTableWriter(Asm, Contents, false),
-      Header(CompUnits.size(), Contents.getBucketCount(),
-             Contents.getUniqueNameCount()),
-      CompUnits(CompUnits), getCUIndexForEntry(std::move(getCUIndexForEntry)) {
-  DenseSet<uint32_t> UniqueTags = getUniqueTags();
-  SmallVector<AttributeEncoding, 2> UniformAttributes = getUniformAttributes();
-
-  Abbreviations.reserve(UniqueTags.size());
-  for (uint32_t Tag : UniqueTags)
-    Abbreviations.try_emplace(Tag, UniformAttributes);
-}
-
-template <typename DataT> void Dwarf5AccelTableWriter<DataT>::emit() const {
-  Header.emit(*this);
-  emitCUList();
-  emitBuckets();
-  emitHashes();
-  emitStringOffsets();
-  emitOffsets(EntryPool);
-  emitAbbrevs();
-  emitData();
-  Asm->OutStreamer->EmitValueToAlignment(4, 0);
-  Asm->OutStreamer->EmitLabel(ContributionEnd);
-}
-
-void llvm::emitAppleAccelTableImpl(AsmPrinter *Asm, AccelTableBase &Contents,
-                                   StringRef Prefix, const MCSymbol *SecBegin,
-                                   ArrayRef<AppleAccelTableData::Atom> Atoms) {
-  Contents.finalize(Asm, Prefix);
-  AppleAccelTableWriter(Asm, Contents, Atoms, SecBegin).emit();
-}
-
-void llvm::emitDWARF5AccelTable(
-    AsmPrinter *Asm, AccelTable<DWARF5AccelTableData> &Contents,
-    const DwarfDebug &DD, ArrayRef<std::unique_ptr<DwarfCompileUnit>> CUs) {
-  std::vector<MCSymbol *> CompUnits;
-  SmallVector<unsigned, 1> CUIndex(CUs.size());
-  int Count = 0;
-  for (const auto &CU : enumerate(CUs)) {
-    if (CU.value()->getCUNode()->getNameTableKind() !=
-        DICompileUnit::DebugNameTableKind::Default)
-      continue;
-    CUIndex[CU.index()] = Count++;
-    assert(CU.index() == CU.value()->getUniqueID());
-    const DwarfCompileUnit *MainCU =
-        DD.useSplitDwarf() ? CU.value()->getSkeleton() : CU.value().get();
-    CompUnits.push_back(MainCU->getLabelBegin());
-  }
-
-  if (CompUnits.empty())
-    return;
-
-  Asm->OutStreamer->SwitchSection(
-      Asm->getObjFileLowering().getDwarfDebugNamesSection());
-
-  Contents.finalize(Asm, "names");
-  Dwarf5AccelTableWriter<DWARF5AccelTableData>(
-      Asm, Contents, CompUnits,
-      [&](const DWARF5AccelTableData &Entry) {
-        const DIE *CUDie = Entry.getDie().getUnitDie();
-        return CUIndex[DD.lookupCU(CUDie)->getUniqueID()];
-      })
-      .emit();
-}
-
-void llvm::emitDWARF5AccelTable(
-    AsmPrinter *Asm, AccelTable<DWARF5AccelTableStaticData> &Contents,
-    ArrayRef<MCSymbol *> CUs,
-    llvm::function_ref<unsigned(const DWARF5AccelTableStaticData &)>
-        getCUIndexForEntry) {
-  Contents.finalize(Asm, "names");
-  Dwarf5AccelTableWriter<DWARF5AccelTableStaticData>(Asm, Contents, CUs,
-                                                     getCUIndexForEntry)
-      .emit();
-}
-
-void AppleAccelTableOffsetData::emit(AsmPrinter *Asm) const {
-  Asm->emitInt32(Die.getDebugSectionOffset());
-}
-
-void AppleAccelTableTypeData::emit(AsmPrinter *Asm) const {
-  Asm->emitInt32(Die.getDebugSectionOffset());
-  Asm->emitInt16(Die.getTag());
-  Asm->emitInt8(0);
-}
-
-void AppleAccelTableStaticOffsetData::emit(AsmPrinter *Asm) const {
-  Asm->emitInt32(Offset);
-}
-
-void AppleAccelTableStaticTypeData::emit(AsmPrinter *Asm) const {
-  Asm->emitInt32(Offset);
-  Asm->emitInt16(Tag);
-  Asm->emitInt8(ObjCClassIsImplementation ? dwarf::DW_FLAG_type_implementation
-                                          : 0);
-  Asm->emitInt32(QualifiedNameHash);
-}
-
-constexpr AppleAccelTableData::Atom AppleAccelTableTypeData::Atoms[];
-constexpr AppleAccelTableData::Atom AppleAccelTableOffsetData::Atoms[];
-constexpr AppleAccelTableData::Atom AppleAccelTableStaticOffsetData::Atoms[];
-constexpr AppleAccelTableData::Atom AppleAccelTableStaticTypeData::Atoms[];
-
-#ifndef NDEBUG
-void AppleAccelTableWriter::Header::print(raw_ostream &OS) const {
-  OS << "Magic: " << format("0x%x", Magic) << "\n"
-     << "Version: " << Version << "\n"
-     << "Hash Function: " << HashFunction << "\n"
-     << "Bucket Count: " << BucketCount << "\n"
-     << "Header Data Length: " << HeaderDataLength << "\n";
-}
-
-void AppleAccelTableData::Atom::print(raw_ostream &OS) const {
-  OS << "Type: " << dwarf::AtomTypeString(Type) << "\n"
-     << "Form: " << dwarf::FormEncodingString(Form) << "\n";
-}
-
-void AppleAccelTableWriter::HeaderData::print(raw_ostream &OS) const {
-  OS << "DIE Offset Base: " << DieOffsetBase << "\n";
-  for (auto Atom : Atoms)
-    Atom.print(OS);
-}
-
-void AppleAccelTableWriter::print(raw_ostream &OS) const {
-  Header.print(OS);
-  HeaderData.print(OS);
-  Contents.print(OS);
-  SecBegin->print(OS, nullptr);
-}
-
-void AccelTableBase::HashData::print(raw_ostream &OS) const {
-  OS << "Name: " << Name.getString() << "\n";
-  OS << "  Hash Value: " << format("0x%x", HashValue) << "\n";
-  OS << "  Symbol: ";
-  if (Sym)
-    OS << *Sym;
-  else
-    OS << "<none>";
-  OS << "\n";
-  for (auto *Value : Values)
-    Value->print(OS);
-}
-
-void AccelTableBase::print(raw_ostream &OS) const {
-  // Print Content.
-  OS << "Entries: \n";
-  for (const auto &Entry : Entries) {
-    OS << "Name: " << Entry.first() << "\n";
-    for (auto *V : Entry.second.Values)
-      V->print(OS);
-  }
-
-  OS << "Buckets and Hashes: \n";
-  for (auto &Bucket : Buckets)
-    for (auto &Hash : Bucket)
-      Hash->print(OS);
-
-  OS << "Data: \n";
-  for (auto &E : Entries)
-    E.second.print(OS);
-}
-
-void DWARF5AccelTableData::print(raw_ostream &OS) const {
-  OS << "  Offset: " << getDieOffset() << "\n";
-  OS << "  Tag: " << dwarf::TagString(getDieTag()) << "\n";
-}
-
-void DWARF5AccelTableStaticData::print(raw_ostream &OS) const {
-  OS << "  Offset: " << getDieOffset() << "\n";
-  OS << "  Tag: " << dwarf::TagString(getDieTag()) << "\n";
-}
-
-void AppleAccelTableOffsetData::print(raw_ostream &OS) const {
-  OS << "  Offset: " << Die.getOffset() << "\n";
-}
-
-void AppleAccelTableTypeData::print(raw_ostream &OS) const {
-  OS << "  Offset: " << Die.getOffset() << "\n";
-  OS << "  Tag: " << dwarf::TagString(Die.getTag()) << "\n";
-}
-
-void AppleAccelTableStaticOffsetData::print(raw_ostream &OS) const {
-  OS << "  Static Offset: " << Offset << "\n";
-}
-
-void AppleAccelTableStaticTypeData::print(raw_ostream &OS) const {
-  OS << "  Static Offset: " << Offset << "\n";
-  OS << "  QualifiedNameHash: " << format("%x\n", QualifiedNameHash) << "\n";
-  OS << "  Tag: " << dwarf::TagString(Tag) << "\n";
-  OS << "  ObjCClassIsImplementation: "
-     << (ObjCClassIsImplementation ? "true" : "false");
-  OS << "\n";
-}
-#endif