1 files changed, 0 insertions, 390 deletions
diff --git a/gnu/llvm/lib/ProfileData/InstrProfWriter.cpp b/gnu/llvm/lib/ProfileData/InstrProfWriter.cpp
deleted file mode 100644
index 18b9deec158..00000000000
--- a/gnu/llvm/lib/ProfileData/InstrProfWriter.cpp
+++ /dev/null
@@ -1,390 +0,0 @@
-//===- InstrProfWriter.cpp - Instrumented profiling writer ----------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains support for writing profiling data for clang's
-// instrumentation based PGO and coverage.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ProfileData/InstrProfWriter.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/IR/ProfileSummary.h"
-#include "llvm/ProfileData/InstrProf.h"
-#include "llvm/ProfileData/ProfileCommon.h"
-#include "llvm/Support/Endian.h"
-#include "llvm/Support/EndianStream.h"
-#include "llvm/Support/Error.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/OnDiskHashTable.h"
-#include "llvm/Support/raw_ostream.h"
-#include <algorithm>
-#include <cstdint>
-#include <memory>
-#include <string>
-#include <tuple>
-#include <utility>
-#include <vector>
-
-using namespace llvm;
-
-// A struct to define how the data stream should be patched. For Indexed
-// profiling, only uint64_t data type is needed.
-struct PatchItem {
-  uint64_t Pos; // Where to patch.
-  uint64_t *D;  // Pointer to an array of source data.
-  int N;        // Number of elements in \c D array.
-};
-
-namespace llvm {
-
-// A wrapper class to abstract writer stream with support of bytes
-// back patching.
-class ProfOStream {
-public:
-  ProfOStream(raw_fd_ostream &FD)
-      : IsFDOStream(true), OS(FD), LE(FD, support::little) {}
-  ProfOStream(raw_string_ostream &STR)
-      : IsFDOStream(false), OS(STR), LE(STR, support::little) {}
-
-  uint64_t tell() { return OS.tell(); }
-  void write(uint64_t V) { LE.write<uint64_t>(V); }
-
-  // \c patch can only be called when all data is written and flushed.
-  // For raw_string_ostream, the patch is done on the target string
-  // directly and it won't be reflected in the stream's internal buffer.
-  void patch(PatchItem *P, int NItems) {
-    using namespace support;
-
-    if (IsFDOStream) {
-      raw_fd_ostream &FDOStream = static_cast<raw_fd_ostream &>(OS);
-      for (int K = 0; K < NItems; K++) {
-        FDOStream.seek(P[K].Pos);
-        for (int I = 0; I < P[K].N; I++)
-          write(P[K].D[I]);
-      }
-    } else {
-      raw_string_ostream &SOStream = static_cast<raw_string_ostream &>(OS);
-      std::string &Data = SOStream.str(); // with flush
-      for (int K = 0; K < NItems; K++) {
-        for (int I = 0; I < P[K].N; I++) {
-          uint64_t Bytes = endian::byte_swap<uint64_t, little>(P[K].D[I]);
-          Data.replace(P[K].Pos + I * sizeof(uint64_t), sizeof(uint64_t),
-                       (const char *)&Bytes, sizeof(uint64_t));
-        }
-      }
-    }
-  }
-
-  // If \c OS is an instance of \c raw_fd_ostream, this field will be
-  // true. Otherwise, \c OS will be an raw_string_ostream.
-  bool IsFDOStream;
-  raw_ostream &OS;
-  support::endian::Writer LE;
-};
-
-class InstrProfRecordWriterTrait {
-public:
-  using key_type = StringRef;
-  using key_type_ref = StringRef;
-
-  using data_type = const InstrProfWriter::ProfilingData *const;
-  using data_type_ref = const InstrProfWriter::ProfilingData *const;
-
-  using hash_value_type = uint64_t;
-  using offset_type = uint64_t;
-
-  support::endianness ValueProfDataEndianness = support::little;
-  InstrProfSummaryBuilder *SummaryBuilder;
-
-  InstrProfRecordWriterTrait() = default;
-
-  static hash_value_type ComputeHash(key_type_ref K) {
-    return IndexedInstrProf::ComputeHash(K);
-  }
-
-  static std::pair<offset_type, offset_type>
-  EmitKeyDataLength(raw_ostream &Out, key_type_ref K, data_type_ref V) {
-    using namespace support;
-
-    endian::Writer LE(Out, little);
-
-    offset_type N = K.size();
-    LE.write<offset_type>(N);
-
-    offset_type M = 0;
-    for (const auto &ProfileData : *V) {
-      const InstrProfRecord &ProfRecord = ProfileData.second;
-      M += sizeof(uint64_t); // The function hash
-      M += sizeof(uint64_t); // The size of the Counts vector
-      M += ProfRecord.Counts.size() * sizeof(uint64_t);
-
-      // Value data
-      M += ValueProfData::getSize(ProfileData.second);
-    }
-    LE.write<offset_type>(M);
-
-    return std::make_pair(N, M);
-  }
-
-  void EmitKey(raw_ostream &Out, key_type_ref K, offset_type N) {
-    Out.write(K.data(), N);
-  }
-
-  void EmitData(raw_ostream &Out, key_type_ref, data_type_ref V, offset_type) {
-    using namespace support;
-
-    endian::Writer LE(Out, little);
-    for (const auto &ProfileData : *V) {
-      const InstrProfRecord &ProfRecord = ProfileData.second;
-      SummaryBuilder->addRecord(ProfRecord);
-
-      LE.write<uint64_t>(ProfileData.first); // Function hash
-      LE.write<uint64_t>(ProfRecord.Counts.size());
-      for (uint64_t I : ProfRecord.Counts)
-        LE.write<uint64_t>(I);
-
-      // Write value data
-      std::unique_ptr<ValueProfData> VDataPtr =
-          ValueProfData::serializeFrom(ProfileData.second);
-      uint32_t S = VDataPtr->getSize();
-      VDataPtr->swapBytesFromHost(ValueProfDataEndianness);
-      Out.write((const char *)VDataPtr.get(), S);
-    }
-  }
-};
-
-} // end namespace llvm
-
-InstrProfWriter::InstrProfWriter(bool Sparse)
-    : Sparse(Sparse), InfoObj(new InstrProfRecordWriterTrait()) {}
-
-InstrProfWriter::~InstrProfWriter() { delete InfoObj; }
-
-// Internal interface for testing purpose only.
-void InstrProfWriter::setValueProfDataEndianness(
-    support::endianness Endianness) {
-  InfoObj->ValueProfDataEndianness = Endianness;
-}
-
-void InstrProfWriter::setOutputSparse(bool Sparse) {
-  this->Sparse = Sparse;
-}
-
-void InstrProfWriter::addRecord(NamedInstrProfRecord &&I, uint64_t Weight,
-                                function_ref<void(Error)> Warn) {
-  auto Name = I.Name;
-  auto Hash = I.Hash;
-  addRecord(Name, Hash, std::move(I), Weight, Warn);
-}
-
-void InstrProfWriter::addRecord(StringRef Name, uint64_t Hash,
-                                InstrProfRecord &&I, uint64_t Weight,
-                                function_ref<void(Error)> Warn) {
-  auto &ProfileDataMap = FunctionData[Name];
-
-  bool NewFunc;
-  ProfilingData::iterator Where;
-  std::tie(Where, NewFunc) =
-      ProfileDataMap.insert(std::make_pair(Hash, InstrProfRecord()));
-  InstrProfRecord &Dest = Where->second;
-
-  auto MapWarn = [&](instrprof_error E) {
-    Warn(make_error<InstrProfError>(E));
-  };
-
-  if (NewFunc) {
-    // We've never seen a function with this name and hash, add it.
-    Dest = std::move(I);
-    if (Weight > 1)
-      Dest.scale(Weight, MapWarn);
-  } else {
-    // We're updating a function we've seen before.
-    Dest.merge(I, Weight, MapWarn);
-  }
-
-  Dest.sortValueData();
-}
-
-void InstrProfWriter::mergeRecordsFromWriter(InstrProfWriter &&IPW,
-                                             function_ref<void(Error)> Warn) {
-  for (auto &I : IPW.FunctionData)
-    for (auto &Func : I.getValue())
-      addRecord(I.getKey(), Func.first, std::move(Func.second), 1, Warn);
-}
-
-bool InstrProfWriter::shouldEncodeData(const ProfilingData &PD) {
-  if (!Sparse)
-    return true;
-  for (const auto &Func : PD) {
-    const InstrProfRecord &IPR = Func.second;
-    if (llvm::any_of(IPR.Counts, [](uint64_t Count) { return Count > 0; }))
-      return true;
-  }
-  return false;
-}
-
-static void setSummary(IndexedInstrProf::Summary *TheSummary,
-                       ProfileSummary &PS) {
-  using namespace IndexedInstrProf;
-
-  std::vector<ProfileSummaryEntry> &Res = PS.getDetailedSummary();
-  TheSummary->NumSummaryFields = Summary::NumKinds;
-  TheSummary->NumCutoffEntries = Res.size();
-  TheSummary->set(Summary::MaxFunctionCount, PS.getMaxFunctionCount());
-  TheSummary->set(Summary::MaxBlockCount, PS.getMaxCount());
-  TheSummary->set(Summary::MaxInternalBlockCount, PS.getMaxInternalCount());
-  TheSummary->set(Summary::TotalBlockCount, PS.getTotalCount());
-  TheSummary->set(Summary::TotalNumBlocks, PS.getNumCounts());
-  TheSummary->set(Summary::TotalNumFunctions, PS.getNumFunctions());
-  for (unsigned I = 0; I < Res.size(); I++)
-    TheSummary->setEntry(I, Res[I]);
-}
-
-void InstrProfWriter::writeImpl(ProfOStream &OS) {
-  using namespace IndexedInstrProf;
-
-  OnDiskChainedHashTableGenerator<InstrProfRecordWriterTrait> Generator;
-
-  InstrProfSummaryBuilder ISB(ProfileSummaryBuilder::DefaultCutoffs);
-  InfoObj->SummaryBuilder = &ISB;
-
-  // Populate the hash table generator.
-  for (const auto &I : FunctionData)
-    if (shouldEncodeData(I.getValue()))
-      Generator.insert(I.getKey(), &I.getValue());
-  // Write the header.
-  IndexedInstrProf::Header Header;
-  Header.Magic = IndexedInstrProf::Magic;
-  Header.Version = IndexedInstrProf::ProfVersion::CurrentVersion;
-  if (ProfileKind == PF_IRLevel)
-    Header.Version |= VARIANT_MASK_IR_PROF;
-  Header.Unused = 0;
-  Header.HashType = static_cast<uint64_t>(IndexedInstrProf::HashType);
-  Header.HashOffset = 0;
-  int N = sizeof(IndexedInstrProf::Header) / sizeof(uint64_t);
-
-  // Only write out all the fields except 'HashOffset'. We need
-  // to remember the offset of that field to allow back patching
-  // later.
-  for (int I = 0; I < N - 1; I++)
-    OS.write(reinterpret_cast<uint64_t *>(&Header)[I]);
-
-  // Save the location of Header.HashOffset field in \c OS.
-  uint64_t HashTableStartFieldOffset = OS.tell();
-  // Reserve the space for HashOffset field.
-  OS.write(0);
-
-  // Reserve space to write profile summary data.
-  uint32_t NumEntries = ProfileSummaryBuilder::DefaultCutoffs.size();
-  uint32_t SummarySize = Summary::getSize(Summary::NumKinds, NumEntries);
-  // Remember the summary offset.
-  uint64_t SummaryOffset = OS.tell();
-  for (unsigned I = 0; I < SummarySize / sizeof(uint64_t); I++)
-    OS.write(0);
-
-  // Write the hash table.
-  uint64_t HashTableStart = Generator.Emit(OS.OS, *InfoObj);
-
-  // Allocate space for data to be serialized out.
-  std::unique_ptr<IndexedInstrProf::Summary> TheSummary =
-      IndexedInstrProf::allocSummary(SummarySize);
-  // Compute the Summary and copy the data to the data
-  // structure to be serialized out (to disk or buffer).
-  std::unique_ptr<ProfileSummary> PS = ISB.getSummary();
-  setSummary(TheSummary.get(), *PS);
-  InfoObj->SummaryBuilder = nullptr;
-
-  // Now do the final patch:
-  PatchItem PatchItems[] = {
-      // Patch the Header.HashOffset field.
-      {HashTableStartFieldOffset, &HashTableStart, 1},
-      // Patch the summary data.
-      {SummaryOffset, reinterpret_cast<uint64_t *>(TheSummary.get()),
-       (int)(SummarySize / sizeof(uint64_t))}};
-  OS.patch(PatchItems, sizeof(PatchItems) / sizeof(*PatchItems));
-}
-
-void InstrProfWriter::write(raw_fd_ostream &OS) {
-  // Write the hash table.
-  ProfOStream POS(OS);
-  writeImpl(POS);
-}
-
-std::unique_ptr<MemoryBuffer> InstrProfWriter::writeBuffer() {
-  std::string Data;
-  raw_string_ostream OS(Data);
-  ProfOStream POS(OS);
-  // Write the hash table.
-  writeImpl(POS);
-  // Return this in an aligned memory buffer.
-  return MemoryBuffer::getMemBufferCopy(Data);
-}
-
-static const char *ValueProfKindStr[] = {
-#define VALUE_PROF_KIND(Enumerator, Value) #Enumerator,
-#include "llvm/ProfileData/InstrProfData.inc"
-};
-
-void InstrProfWriter::writeRecordInText(StringRef Name, uint64_t Hash,
-                                        const InstrProfRecord &Func,
-                                        InstrProfSymtab &Symtab,
-                                        raw_fd_ostream &OS) {
-  OS << Name << "\n";
-  OS << "# Func Hash:\n" << Hash << "\n";
-  OS << "# Num Counters:\n" << Func.Counts.size() << "\n";
-  OS << "# Counter Values:\n";
-  for (uint64_t Count : Func.Counts)
-    OS << Count << "\n";
-
-  uint32_t NumValueKinds = Func.getNumValueKinds();
-  if (!NumValueKinds) {
-    OS << "\n";
-    return;
-  }
-
-  OS << "# Num Value Kinds:\n" << Func.getNumValueKinds() << "\n";
-  for (uint32_t VK = 0; VK < IPVK_Last + 1; VK++) {
-    uint32_t NS = Func.getNumValueSites(VK);
-    if (!NS)
-      continue;
-    OS << "# ValueKind = " << ValueProfKindStr[VK] << ":\n" << VK << "\n";
-    OS << "# NumValueSites:\n" << NS << "\n";
-    for (uint32_t S = 0; S < NS; S++) {
-      uint32_t ND = Func.getNumValueDataForSite(VK, S);
-      OS << ND << "\n";
-      std::unique_ptr<InstrProfValueData[]> VD = Func.getValueForSite(VK, S);
-      for (uint32_t I = 0; I < ND; I++) {
-        if (VK == IPVK_IndirectCallTarget)
-          OS << Symtab.getFuncNameOrExternalSymbol(VD[I].Value) << ":"
-             << VD[I].Count << "\n";
-        else
-          OS << VD[I].Value << ":" << VD[I].Count << "\n";
-      }
-    }
-  }
-
-  OS << "\n";
-}
-
-Error InstrProfWriter::writeText(raw_fd_ostream &OS) {
-  if (ProfileKind == PF_IRLevel)
-    OS << "# IR level Instrumentation Flag\n:ir\n";
-  InstrProfSymtab Symtab;
-  for (const auto &I : FunctionData)
-    if (shouldEncodeData(I.getValue()))
-      if (Error E = Symtab.addFuncName(I.getKey()))
-        return E;
-
-  for (const auto &I : FunctionData)
-    if (shouldEncodeData(I.getValue()))
-      for (const auto &Func : I.getValue())
-        writeRecordInText(I.getKey(), Func.first, Func.second, Symtab, OS);
-  return Error::success();
-}