1 files changed, 0 insertions, 279 deletions

diff --git a/contrib/llvm/lib/DebugInfo/PDB/Native/DbiModuleList.cpp b/contrib/llvm/lib/DebugInfo/PDB/Native/DbiModuleList.cpp
deleted file mode 100644
index 5cf014e881cd..000000000000
--- a/contrib/llvm/lib/DebugInfo/PDB/Native/DbiModuleList.cpp
+++ /dev/null
@@ -1,279 +0,0 @@
-//===- DbiModuleList.cpp - PDB module information list --------------------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/DebugInfo/PDB/Native/DbiModuleList.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/iterator_range.h"
-#include "llvm/DebugInfo/PDB/Native/RawError.h"
-#include "llvm/Support/BinaryStreamReader.h"
-#include "llvm/Support/Error.h"
-#include <algorithm>
-#include <cassert>
-#include <cstddef>
-#include <cstdint>
-
-using namespace llvm;
-using namespace llvm::pdb;
-
-DbiModuleSourceFilesIterator::DbiModuleSourceFilesIterator(
-    const DbiModuleList &Modules, uint32_t Modi, uint16_t Filei)
-    : Modules(&Modules), Modi(Modi), Filei(Filei) {
-  setValue();
-}
-
-bool DbiModuleSourceFilesIterator::
-operator==(const DbiModuleSourceFilesIterator &R) const {
-  // incompatible iterators are never equal
-  if (!isCompatible(R))
-    return false;
-
-  // If they're compatible, and they're both ends, then they're equal.
-  if (isEnd() && R.isEnd())
-    return true;
-
-  // If one is an end and the other is not, they're not equal.
-  if (isEnd() != R.isEnd())
-    return false;
-
-  // Now we know:
-  // - They're compatible
-  // - They're not *both* end iterators
-  // - Their endness is the same.
-  // Thus, they're compatible iterators pointing to a valid file on the same
-  // module.  All we need to check are the file indices.
-  assert(Modules == R.Modules);
-  assert(Modi == R.Modi);
-  assert(!isEnd());
-  assert(!R.isEnd());
-
-  return (Filei == R.Filei);
-}
-
-bool DbiModuleSourceFilesIterator::
-operator<(const DbiModuleSourceFilesIterator &R) const {
-  assert(isCompatible(R));
-
-  // It's not sufficient to compare the file indices, because default
-  // constructed iterators could be equal to iterators with valid indices.  To
-  // account for this, early-out if they're equal.
-  if (*this == R)
-    return false;
-
-  return Filei < R.Filei;
-}
-
-std::ptrdiff_t DbiModuleSourceFilesIterator::
-operator-(const DbiModuleSourceFilesIterator &R) const {
-  assert(isCompatible(R));
-  assert(!(*this < R));
-
-  // If they're both end iterators, the distance is 0.
-  if (isEnd() && R.isEnd())
-    return 0;
-
-  assert(!R.isEnd());
-
-  // At this point, R cannot be end, but *this can, which means that *this
-  // might be a universal end iterator with none of its fields set.  So in that
-  // case have to rely on R as the authority to figure out how many files there
-  // are to compute the distance.
-  uint32_t Thisi = Filei;
-  if (isEnd()) {
-    uint32_t RealModi = R.Modi;
-    Thisi = R.Modules->getSourceFileCount(RealModi);
-  }
-
-  assert(Thisi >= R.Filei);
-  return Thisi - R.Filei;
-}
-
-DbiModuleSourceFilesIterator &DbiModuleSourceFilesIterator::
-operator+=(std::ptrdiff_t N) {
-  assert(!isEnd());
-
-  Filei += N;
-  assert(Filei <= Modules->getSourceFileCount(Modi));
-  setValue();
-  return *this;
-}
-
-DbiModuleSourceFilesIterator &DbiModuleSourceFilesIterator::
-operator-=(std::ptrdiff_t N) {
-  // Note that we can subtract from an end iterator, but not a universal end
-  // iterator.
-  assert(!isUniversalEnd());
-
-  assert(N <= Filei);
-
-  Filei -= N;
-  return *this;
-}
-
-void DbiModuleSourceFilesIterator::setValue() {
-  if (isEnd()) {
-    ThisValue = "";
-    return;
-  }
-
-  uint32_t Off = Modules->ModuleInitialFileIndex[Modi] + Filei;
-  auto ExpectedValue = Modules->getFileName(Off);
-  if (!ExpectedValue) {
-    consumeError(ExpectedValue.takeError());
-    Filei = Modules->getSourceFileCount(Modi);
-  } else
-    ThisValue = *ExpectedValue;
-}
-
-bool DbiModuleSourceFilesIterator::isEnd() const {
-  if (isUniversalEnd())
-    return true;
-
-  assert(Modules);
-  assert(Modi <= Modules->getModuleCount());
-  assert(Filei <= Modules->getSourceFileCount(Modi));
-
-  if (Modi == Modules->getModuleCount())
-    return true;
-  if (Filei == Modules->getSourceFileCount(Modi))
-    return true;
-  return false;
-}
-
-bool DbiModuleSourceFilesIterator::isUniversalEnd() const { return !Modules; }
-
-bool DbiModuleSourceFilesIterator::isCompatible(
-    const DbiModuleSourceFilesIterator &R) const {
-  // Universal iterators are compatible with any other iterator.
-  if (isUniversalEnd() || R.isUniversalEnd())
-    return true;
-
-  // At this point, neither iterator is a universal end iterator, although one
-  // or both might be non-universal end iterators.  Regardless, the module index
-  // is valid, so they are compatible if and only if they refer to the same
-  // module.
-  return Modi == R.Modi;
-}
-
-Error DbiModuleList::initialize(BinaryStreamRef ModInfo,
-                                BinaryStreamRef FileInfo) {
-  if (auto EC = initializeModInfo(ModInfo))
-    return EC;
-  if (auto EC = initializeFileInfo(FileInfo))
-    return EC;
-
-  return Error::success();
-}
-
-Error DbiModuleList::initializeModInfo(BinaryStreamRef ModInfo) {
-  ModInfoSubstream = ModInfo;
-
-  if (ModInfo.getLength() == 0)
-    return Error::success();
-
-  BinaryStreamReader Reader(ModInfo);
-
-  if (auto EC = Reader.readArray(Descriptors, ModInfo.getLength()))
-    return EC;
-
-  return Error::success();
-}
-
-Error DbiModuleList::initializeFileInfo(BinaryStreamRef FileInfo) {
-  FileInfoSubstream = FileInfo;
-
-  if (FileInfo.getLength() == 0)
-    return Error::success();
-
-  BinaryStreamReader FISR(FileInfo);
-  if (auto EC = FISR.readObject(FileInfoHeader))
-    return EC;
-
-  // First is an array of `NumModules` module indices.  This does not seem to be
-  // used for anything meaningful, so we ignore it.
-  FixedStreamArray<support::ulittle16_t> ModuleIndices;
-  if (auto EC = FISR.readArray(ModuleIndices, FileInfoHeader->NumModules))
-    return EC;
-  if (auto EC = FISR.readArray(ModFileCountArray, FileInfoHeader->NumModules))
-    return EC;
-
-  // Compute the real number of source files.  We can't trust the value in
-  // `FileInfoHeader->NumSourceFiles` because it is a unit16, and the sum of all
-  // source file counts might be larger than a unit16.  So we compute the real
-  // count by summing up the individual counts.
-  uint32_t NumSourceFiles = 0;
-  for (auto Count : ModFileCountArray)
-    NumSourceFiles += Count;
-
-  // In the reference implementation, this array is where the pointer documented
-  // at the definition of ModuleInfoHeader::FileNameOffs points to.  Note that
-  // although the field in ModuleInfoHeader is ignored this array is not, as it
-  // is the authority on where each filename begins in the names buffer.
-  if (auto EC = FISR.readArray(FileNameOffsets, NumSourceFiles))
-    return EC;
-
-  if (auto EC = FISR.readStreamRef(NamesBuffer))
-    return EC;
-
-  auto DescriptorIter = Descriptors.begin();
-  uint32_t NextFileIndex = 0;
-  ModuleInitialFileIndex.resize(FileInfoHeader->NumModules);
-  ModuleDescriptorOffsets.resize(FileInfoHeader->NumModules);
-  for (size_t I = 0; I < FileInfoHeader->NumModules; ++I) {
-    assert(DescriptorIter != Descriptors.end());
-    ModuleInitialFileIndex[I] = NextFileIndex;
-    ModuleDescriptorOffsets[I] = DescriptorIter.offset();
-
-    NextFileIndex += ModFileCountArray[I];
-    ++DescriptorIter;
-  }
-
-  assert(DescriptorIter == Descriptors.end());
-  assert(NextFileIndex == NumSourceFiles);
-
-  return Error::success();
-}
-
-uint32_t DbiModuleList::getModuleCount() const {
-  return FileInfoHeader->NumModules;
-}
-
-uint32_t DbiModuleList::getSourceFileCount() const {
-  return FileNameOffsets.size();
-}
-
-uint16_t DbiModuleList::getSourceFileCount(uint32_t Modi) const {
-  return ModFileCountArray[Modi];
-}
-
-DbiModuleDescriptor DbiModuleList::getModuleDescriptor(uint32_t Modi) const {
-  assert(Modi < getModuleCount());
-  uint32_t Offset = ModuleDescriptorOffsets[Modi];
-  auto Iter = Descriptors.at(Offset);
-  assert(Iter != Descriptors.end());
-  return *Iter;
-}
-
-iterator_range<DbiModuleSourceFilesIterator>
-DbiModuleList::source_files(uint32_t Modi) const {
-  return make_range<DbiModuleSourceFilesIterator>(
-      DbiModuleSourceFilesIterator(*this, Modi, 0),
-      DbiModuleSourceFilesIterator());
-}
-
-Expected<StringRef> DbiModuleList::getFileName(uint32_t Index) const {
-  BinaryStreamReader Names(NamesBuffer);
-  if (Index >= getSourceFileCount())
-    return make_error<RawError>(raw_error_code::index_out_of_bounds);
-
-  uint32_t FileOffset = FileNameOffsets[Index];
-  Names.setOffset(FileOffset);
-  StringRef Name;
-  if (auto EC = Names.readCString(Name))
-    return std::move(EC);
-  return Name;
-}