Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 1015 deletions

diff --git a/gnu/llvm/lib/ProfileData/InstrProf.cpp b/gnu/llvm/lib/ProfileData/InstrProf.cpp
deleted file mode 100644
index aaa8000ff2f..00000000000
--- a/gnu/llvm/lib/ProfileData/InstrProf.cpp
+++ /dev/null
@@ -1,1015 +0,0 @@
-//===- InstrProf.cpp - Instrumented profiling format support --------------===//
-//
-//                     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 clang's instrumentation based PGO and
-// coverage.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ProfileData/InstrProf.h"
-#include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/Triple.h"
-#include "llvm/IR/Constant.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/GlobalValue.h"
-#include "llvm/IR/GlobalVariable.h"
-#include "llvm/IR/Instruction.h"
-#include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/MDBuilder.h"
-#include "llvm/IR/Metadata.h"
-#include "llvm/IR/Module.h"
-#include "llvm/IR/Type.h"
-#include "llvm/Support/Casting.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Support/Compression.h"
-#include "llvm/Support/Endian.h"
-#include "llvm/Support/Error.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/LEB128.h"
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/Path.h"
-#include "llvm/Support/SwapByteOrder.h"
-#include <algorithm>
-#include <cassert>
-#include <cstddef>
-#include <cstdint>
-#include <cstring>
-#include <memory>
-#include <string>
-#include <system_error>
-#include <utility>
-#include <vector>
-
-using namespace llvm;
-
-static cl::opt<bool> StaticFuncFullModulePrefix(
-    "static-func-full-module-prefix", cl::init(true), cl::Hidden,
-    cl::desc("Use full module build paths in the profile counter names for "
-             "static functions."));
-
-// This option is tailored to users that have different top-level directory in
-// profile-gen and profile-use compilation. Users need to specific the number
-// of levels to strip. A value larger than the number of directories in the
-// source file will strip all the directory names and only leave the basename.
-//
-// Note current ThinLTO module importing for the indirect-calls assumes
-// the source directory name not being stripped. A non-zero option value here
-// can potentially prevent some inter-module indirect-call-promotions.
-static cl::opt<unsigned> StaticFuncStripDirNamePrefix(
-    "static-func-strip-dirname-prefix", cl::init(0), cl::Hidden,
-    cl::desc("Strip specified level of directory name from source path in "
-             "the profile counter name for static functions."));
-
-static std::string getInstrProfErrString(instrprof_error Err) {
-  switch (Err) {
-  case instrprof_error::success:
-    return "Success";
-  case instrprof_error::eof:
-    return "End of File";
-  case instrprof_error::unrecognized_format:
-    return "Unrecognized instrumentation profile encoding format";
-  case instrprof_error::bad_magic:
-    return "Invalid instrumentation profile data (bad magic)";
-  case instrprof_error::bad_header:
-    return "Invalid instrumentation profile data (file header is corrupt)";
-  case instrprof_error::unsupported_version:
-    return "Unsupported instrumentation profile format version";
-  case instrprof_error::unsupported_hash_type:
-    return "Unsupported instrumentation profile hash type";
-  case instrprof_error::too_large:
-    return "Too much profile data";
-  case instrprof_error::truncated:
-    return "Truncated profile data";
-  case instrprof_error::malformed:
-    return "Malformed instrumentation profile data";
-  case instrprof_error::unknown_function:
-    return "No profile data available for function";
-  case instrprof_error::hash_mismatch:
-    return "Function control flow change detected (hash mismatch)";
-  case instrprof_error::count_mismatch:
-    return "Function basic block count change detected (counter mismatch)";
-  case instrprof_error::counter_overflow:
-    return "Counter overflow";
-  case instrprof_error::value_site_count_mismatch:
-    return "Function value site count change detected (counter mismatch)";
-  case instrprof_error::compress_failed:
-    return "Failed to compress data (zlib)";
-  case instrprof_error::uncompress_failed:
-    return "Failed to uncompress data (zlib)";
-  case instrprof_error::empty_raw_profile:
-    return "Empty raw profile file";
-  case instrprof_error::zlib_unavailable:
-    return "Profile uses zlib compression but the profile reader was built without zlib support";
-  }
-  llvm_unreachable("A value of instrprof_error has no message.");
-}
-
-namespace {
-
-// FIXME: This class is only here to support the transition to llvm::Error. It
-// will be removed once this transition is complete. Clients should prefer to
-// deal with the Error value directly, rather than converting to error_code.
-class InstrProfErrorCategoryType : public std::error_category {
-  const char *name() const noexcept override { return "llvm.instrprof"; }
-
-  std::string message(int IE) const override {
-    return getInstrProfErrString(static_cast<instrprof_error>(IE));
-  }
-};
-
-} // end anonymous namespace
-
-static ManagedStatic<InstrProfErrorCategoryType> ErrorCategory;
-
-const std::error_category &llvm::instrprof_category() {
-  return *ErrorCategory;
-}
-
-namespace {
-
-const char *InstrProfSectNameCommon[] = {
-#define INSTR_PROF_SECT_ENTRY(Kind, SectNameCommon, SectNameCoff, Prefix)      \
-  SectNameCommon,
-#include "llvm/ProfileData/InstrProfData.inc"
-};
-
-const char *InstrProfSectNameCoff[] = {
-#define INSTR_PROF_SECT_ENTRY(Kind, SectNameCommon, SectNameCoff, Prefix)      \
-  SectNameCoff,
-#include "llvm/ProfileData/InstrProfData.inc"
-};
-
-const char *InstrProfSectNamePrefix[] = {
-#define INSTR_PROF_SECT_ENTRY(Kind, SectNameCommon, SectNameCoff, Prefix)      \
-  Prefix,
-#include "llvm/ProfileData/InstrProfData.inc"
-};
-
-} // namespace
-
-namespace llvm {
-
-std::string getInstrProfSectionName(InstrProfSectKind IPSK,
-                                    Triple::ObjectFormatType OF,
-                                    bool AddSegmentInfo) {
-  std::string SectName;
-
-  if (OF == Triple::MachO && AddSegmentInfo)
-    SectName = InstrProfSectNamePrefix[IPSK];
-
-  if (OF == Triple::COFF)
-    SectName += InstrProfSectNameCoff[IPSK];
-  else
-    SectName += InstrProfSectNameCommon[IPSK];
-
-  if (OF == Triple::MachO && IPSK == IPSK_data && AddSegmentInfo)
-    SectName += ",regular,live_support";
-
-  return SectName;
-}
-
-void SoftInstrProfErrors::addError(instrprof_error IE) {
-  if (IE == instrprof_error::success)
-    return;
-
-  if (FirstError == instrprof_error::success)
-    FirstError = IE;
-
-  switch (IE) {
-  case instrprof_error::hash_mismatch:
-    ++NumHashMismatches;
-    break;
-  case instrprof_error::count_mismatch:
-    ++NumCountMismatches;
-    break;
-  case instrprof_error::counter_overflow:
-    ++NumCounterOverflows;
-    break;
-  case instrprof_error::value_site_count_mismatch:
-    ++NumValueSiteCountMismatches;
-    break;
-  default:
-    llvm_unreachable("Not a soft error");
-  }
-}
-
-std::string InstrProfError::message() const {
-  return getInstrProfErrString(Err);
-}
-
-char InstrProfError::ID = 0;
-
-std::string getPGOFuncName(StringRef RawFuncName,
-                           GlobalValue::LinkageTypes Linkage,
-                           StringRef FileName,
-                           uint64_t Version LLVM_ATTRIBUTE_UNUSED) {
-  return GlobalValue::getGlobalIdentifier(RawFuncName, Linkage, FileName);
-}
-
-// Strip NumPrefix level of directory name from PathNameStr. If the number of
-// directory separators is less than NumPrefix, strip all the directories and
-// leave base file name only.
-static StringRef stripDirPrefix(StringRef PathNameStr, uint32_t NumPrefix) {
-  uint32_t Count = NumPrefix;
-  uint32_t Pos = 0, LastPos = 0;
-  for (auto & CI : PathNameStr) {
-    ++Pos;
-    if (llvm::sys::path::is_separator(CI)) {
-      LastPos = Pos;
-      --Count;
-    }
-    if (Count == 0)
-      break;
-  }
-  return PathNameStr.substr(LastPos);
-}
-
-// Return the PGOFuncName. This function has some special handling when called
-// in LTO optimization. The following only applies when calling in LTO passes
-// (when \c InLTO is true): LTO's internalization privatizes many global linkage
-// symbols. This happens after value profile annotation, but those internal
-// linkage functions should not have a source prefix.
-// Additionally, for ThinLTO mode, exported internal functions are promoted
-// and renamed. We need to ensure that the original internal PGO name is
-// used when computing the GUID that is compared against the profiled GUIDs.
-// To differentiate compiler generated internal symbols from original ones,
-// PGOFuncName meta data are created and attached to the original internal
-// symbols in the value profile annotation step
-// (PGOUseFunc::annotateIndirectCallSites). If a symbol does not have the meta
-// data, its original linkage must be non-internal.
-std::string getPGOFuncName(const Function &F, bool InLTO, uint64_t Version) {
-  if (!InLTO) {
-    StringRef FileName(F.getParent()->getSourceFileName());
-    uint32_t StripLevel = StaticFuncFullModulePrefix ? 0 : (uint32_t)-1;
-    if (StripLevel < StaticFuncStripDirNamePrefix)
-      StripLevel = StaticFuncStripDirNamePrefix;
-    if (StripLevel)
-      FileName = stripDirPrefix(FileName, StripLevel);
-    return getPGOFuncName(F.getName(), F.getLinkage(), FileName, Version);
-  }
-
-  // In LTO mode (when InLTO is true), first check if there is a meta data.
-  if (MDNode *MD = getPGOFuncNameMetadata(F)) {
-    StringRef S = cast<MDString>(MD->getOperand(0))->getString();
-    return S.str();
-  }
-
-  // If there is no meta data, the function must be a global before the value
-  // profile annotation pass. Its current linkage may be internal if it is
-  // internalized in LTO mode.
-  return getPGOFuncName(F.getName(), GlobalValue::ExternalLinkage, "");
-}
-
-StringRef getFuncNameWithoutPrefix(StringRef PGOFuncName, StringRef FileName) {
-  if (FileName.empty())
-    return PGOFuncName;
-  // Drop the file name including ':'. See also getPGOFuncName.
-  if (PGOFuncName.startswith(FileName))
-    PGOFuncName = PGOFuncName.drop_front(FileName.size() + 1);
-  return PGOFuncName;
-}
-
-// \p FuncName is the string used as profile lookup key for the function. A
-// symbol is created to hold the name. Return the legalized symbol name.
-std::string getPGOFuncNameVarName(StringRef FuncName,
-                                  GlobalValue::LinkageTypes Linkage) {
-  std::string VarName = getInstrProfNameVarPrefix();
-  VarName += FuncName;
-
-  if (!GlobalValue::isLocalLinkage(Linkage))
-    return VarName;
-
-  // Now fix up illegal chars in local VarName that may upset the assembler.
-  const char *InvalidChars = "-:<>/\"'";
-  size_t found = VarName.find_first_of(InvalidChars);
-  while (found != std::string::npos) {
-    VarName[found] = '_';
-    found = VarName.find_first_of(InvalidChars, found + 1);
-  }
-  return VarName;
-}
-
-GlobalVariable *createPGOFuncNameVar(Module &M,
-                                     GlobalValue::LinkageTypes Linkage,
-                                     StringRef PGOFuncName) {
-  // We generally want to match the function's linkage, but available_externally
-  // and extern_weak both have the wrong semantics, and anything that doesn't
-  // need to link across compilation units doesn't need to be visible at all.
-  if (Linkage == GlobalValue::ExternalWeakLinkage)
-    Linkage = GlobalValue::LinkOnceAnyLinkage;
-  else if (Linkage == GlobalValue::AvailableExternallyLinkage)
-    Linkage = GlobalValue::LinkOnceODRLinkage;
-  else if (Linkage == GlobalValue::InternalLinkage ||
-           Linkage == GlobalValue::ExternalLinkage)
-    Linkage = GlobalValue::PrivateLinkage;
-
-  auto *Value =
-      ConstantDataArray::getString(M.getContext(), PGOFuncName, false);
-  auto FuncNameVar =
-      new GlobalVariable(M, Value->getType(), true, Linkage, Value,
-                         getPGOFuncNameVarName(PGOFuncName, Linkage));
-
-  // Hide the symbol so that we correctly get a copy for each executable.
-  if (!GlobalValue::isLocalLinkage(FuncNameVar->getLinkage()))
-    FuncNameVar->setVisibility(GlobalValue::HiddenVisibility);
-
-  return FuncNameVar;
-}
-
-GlobalVariable *createPGOFuncNameVar(Function &F, StringRef PGOFuncName) {
-  return createPGOFuncNameVar(*F.getParent(), F.getLinkage(), PGOFuncName);
-}
-
-Error InstrProfSymtab::create(Module &M, bool InLTO) {
-  for (Function &F : M) {
-    // Function may not have a name: like using asm("") to overwrite the name.
-    // Ignore in this case.
-    if (!F.hasName())
-      continue;
-    const std::string &PGOFuncName = getPGOFuncName(F, InLTO);
-    if (Error E = addFuncName(PGOFuncName))
-      return E;
-    MD5FuncMap.emplace_back(Function::getGUID(PGOFuncName), &F);
-    // In ThinLTO, local function may have been promoted to global and have
-    // suffix added to the function name. We need to add the stripped function
-    // name to the symbol table so that we can find a match from profile.
-    if (InLTO) {
-      auto pos = PGOFuncName.find('.');
-      if (pos != std::string::npos) {
-        const std::string &OtherFuncName = PGOFuncName.substr(0, pos);
-        if (Error E = addFuncName(OtherFuncName))
-          return E;
-        MD5FuncMap.emplace_back(Function::getGUID(OtherFuncName), &F);
-      }
-    }
-  }
-  Sorted = false;
-  finalizeSymtab();
-  return Error::success();
-}
-
-uint64_t InstrProfSymtab::getFunctionHashFromAddress(uint64_t Address) {
-  finalizeSymtab();
-  auto Result =
-      std::lower_bound(AddrToMD5Map.begin(), AddrToMD5Map.end(), Address,
-                       [](const std::pair<uint64_t, uint64_t> &LHS,
-                          uint64_t RHS) { return LHS.first < RHS; });
-  // Raw function pointer collected by value profiler may be from
-  // external functions that are not instrumented. They won't have
-  // mapping data to be used by the deserializer. Force the value to
-  // be 0 in this case.
-  if (Result != AddrToMD5Map.end() && Result->first == Address)
-    return (uint64_t)Result->second;
-  return 0;
-}
-
-Error collectPGOFuncNameStrings(ArrayRef<std::string> NameStrs,
-                                bool doCompression, std::string &Result) {
-  assert(!NameStrs.empty() && "No name data to emit");
-
-  uint8_t Header[16], *P = Header;
-  std::string UncompressedNameStrings =
-      join(NameStrs.begin(), NameStrs.end(), getInstrProfNameSeparator());
-
-  assert(StringRef(UncompressedNameStrings)
-                 .count(getInstrProfNameSeparator()) == (NameStrs.size() - 1) &&
-         "PGO name is invalid (contains separator token)");
-
-  unsigned EncLen = encodeULEB128(UncompressedNameStrings.length(), P);
-  P += EncLen;
-
-  auto WriteStringToResult = [&](size_t CompressedLen, StringRef InputStr) {
-    EncLen = encodeULEB128(CompressedLen, P);
-    P += EncLen;
-    char *HeaderStr = reinterpret_cast<char *>(&Header[0]);
-    unsigned HeaderLen = P - &Header[0];
-    Result.append(HeaderStr, HeaderLen);
-    Result += InputStr;
-    return Error::success();
-  };
-
-  if (!doCompression) {
-    return WriteStringToResult(0, UncompressedNameStrings);
-  }
-
-  SmallString<128> CompressedNameStrings;
-  Error E = zlib::compress(StringRef(UncompressedNameStrings),
-                           CompressedNameStrings, zlib::BestSizeCompression);
-  if (E) {
-    consumeError(std::move(E));
-    return make_error<InstrProfError>(instrprof_error::compress_failed);
-  }
-
-  return WriteStringToResult(CompressedNameStrings.size(),
-                             CompressedNameStrings);
-}
-
-StringRef getPGOFuncNameVarInitializer(GlobalVariable *NameVar) {
-  auto *Arr = cast<ConstantDataArray>(NameVar->getInitializer());
-  StringRef NameStr =
-      Arr->isCString() ? Arr->getAsCString() : Arr->getAsString();
-  return NameStr;
-}
-
-Error collectPGOFuncNameStrings(ArrayRef<GlobalVariable *> NameVars,
-                                std::string &Result, bool doCompression) {
-  std::vector<std::string> NameStrs;
-  for (auto *NameVar : NameVars) {
-    NameStrs.push_back(getPGOFuncNameVarInitializer(NameVar));
-  }
-  return collectPGOFuncNameStrings(
-      NameStrs, zlib::isAvailable() && doCompression, Result);
-}
-
-Error readPGOFuncNameStrings(StringRef NameStrings, InstrProfSymtab &Symtab) {
-  const uint8_t *P = reinterpret_cast<const uint8_t *>(NameStrings.data());
-  const uint8_t *EndP = reinterpret_cast<const uint8_t *>(NameStrings.data() +
-                                                          NameStrings.size());
-  while (P < EndP) {
-    uint32_t N;
-    uint64_t UncompressedSize = decodeULEB128(P, &N);
-    P += N;
-    uint64_t CompressedSize = decodeULEB128(P, &N);
-    P += N;
-    bool isCompressed = (CompressedSize != 0);
-    SmallString<128> UncompressedNameStrings;
-    StringRef NameStrings;
-    if (isCompressed) {
-      if (!llvm::zlib::isAvailable())
-        return make_error<InstrProfError>(instrprof_error::zlib_unavailable);
-
-      StringRef CompressedNameStrings(reinterpret_cast<const char *>(P),
-                                      CompressedSize);
-      if (Error E =
-              zlib::uncompress(CompressedNameStrings, UncompressedNameStrings,
-                               UncompressedSize)) {
-        consumeError(std::move(E));
-        return make_error<InstrProfError>(instrprof_error::uncompress_failed);
-      }
-      P += CompressedSize;
-      NameStrings = StringRef(UncompressedNameStrings.data(),
-                              UncompressedNameStrings.size());
-    } else {
-      NameStrings =
-          StringRef(reinterpret_cast<const char *>(P), UncompressedSize);
-      P += UncompressedSize;
-    }
-    // Now parse the name strings.
-    SmallVector<StringRef, 0> Names;
-    NameStrings.split(Names, getInstrProfNameSeparator());
-    for (StringRef &Name : Names)
-      if (Error E = Symtab.addFuncName(Name))
-        return E;
-
-    while (P < EndP && *P == 0)
-      P++;
-  }
-  return Error::success();
-}
-
-void InstrProfValueSiteRecord::merge(InstrProfValueSiteRecord &Input,
-                                     uint64_t Weight,
-                                     function_ref<void(instrprof_error)> Warn) {
-  this->sortByTargetValues();
-  Input.sortByTargetValues();
-  auto I = ValueData.begin();
-  auto IE = ValueData.end();
-  for (auto J = Input.ValueData.begin(), JE = Input.ValueData.end(); J != JE;
-       ++J) {
-    while (I != IE && I->Value < J->Value)
-      ++I;
-    if (I != IE && I->Value == J->Value) {
-      bool Overflowed;
-      I->Count = SaturatingMultiplyAdd(J->Count, Weight, I->Count, &Overflowed);
-      if (Overflowed)
-        Warn(instrprof_error::counter_overflow);
-      ++I;
-      continue;
-    }
-    ValueData.insert(I, *J);
-  }
-}
-
-void InstrProfValueSiteRecord::scale(uint64_t Weight,
-                                     function_ref<void(instrprof_error)> Warn) {
-  for (auto I = ValueData.begin(), IE = ValueData.end(); I != IE; ++I) {
-    bool Overflowed;
-    I->Count = SaturatingMultiply(I->Count, Weight, &Overflowed);
-    if (Overflowed)
-      Warn(instrprof_error::counter_overflow);
-  }
-}
-
-// Merge Value Profile data from Src record to this record for ValueKind.
-// Scale merged value counts by \p Weight.
-void InstrProfRecord::mergeValueProfData(
-    uint32_t ValueKind, InstrProfRecord &Src, uint64_t Weight,
-    function_ref<void(instrprof_error)> Warn) {
-  uint32_t ThisNumValueSites = getNumValueSites(ValueKind);
-  uint32_t OtherNumValueSites = Src.getNumValueSites(ValueKind);
-  if (ThisNumValueSites != OtherNumValueSites) {
-    Warn(instrprof_error::value_site_count_mismatch);
-    return;
-  }
-  if (!ThisNumValueSites)
-    return;
-  std::vector<InstrProfValueSiteRecord> &ThisSiteRecords =
-      getOrCreateValueSitesForKind(ValueKind);
-  MutableArrayRef<InstrProfValueSiteRecord> OtherSiteRecords =
-      Src.getValueSitesForKind(ValueKind);
-  for (uint32_t I = 0; I < ThisNumValueSites; I++)
-    ThisSiteRecords[I].merge(OtherSiteRecords[I], Weight, Warn);
-}
-
-void InstrProfRecord::merge(InstrProfRecord &Other, uint64_t Weight,
-                            function_ref<void(instrprof_error)> Warn) {
-  // If the number of counters doesn't match we either have bad data
-  // or a hash collision.
-  if (Counts.size() != Other.Counts.size()) {
-    Warn(instrprof_error::count_mismatch);
-    return;
-  }
-
-  for (size_t I = 0, E = Other.Counts.size(); I < E; ++I) {
-    bool Overflowed;
-    Counts[I] =
-        SaturatingMultiplyAdd(Other.Counts[I], Weight, Counts[I], &Overflowed);
-    if (Overflowed)
-      Warn(instrprof_error::counter_overflow);
-  }
-
-  for (uint32_t Kind = IPVK_First; Kind <= IPVK_Last; ++Kind)
-    mergeValueProfData(Kind, Other, Weight, Warn);
-}
-
-void InstrProfRecord::scaleValueProfData(
-    uint32_t ValueKind, uint64_t Weight,
-    function_ref<void(instrprof_error)> Warn) {
-  for (auto &R : getValueSitesForKind(ValueKind))
-    R.scale(Weight, Warn);
-}
-
-void InstrProfRecord::scale(uint64_t Weight,
-                            function_ref<void(instrprof_error)> Warn) {
-  for (auto &Count : this->Counts) {
-    bool Overflowed;
-    Count = SaturatingMultiply(Count, Weight, &Overflowed);
-    if (Overflowed)
-      Warn(instrprof_error::counter_overflow);
-  }
-  for (uint32_t Kind = IPVK_First; Kind <= IPVK_Last; ++Kind)
-    scaleValueProfData(Kind, Weight, Warn);
-}
-
-// Map indirect call target name hash to name string.
-uint64_t InstrProfRecord::remapValue(uint64_t Value, uint32_t ValueKind,
-                                     InstrProfSymtab *SymTab) {
-  if (!SymTab)
-    return Value;
-
-  if (ValueKind == IPVK_IndirectCallTarget)
-    return SymTab->getFunctionHashFromAddress(Value);
-
-  return Value;
-}
-
-void InstrProfRecord::addValueData(uint32_t ValueKind, uint32_t Site,
-                                   InstrProfValueData *VData, uint32_t N,
-                                   InstrProfSymtab *ValueMap) {
-  for (uint32_t I = 0; I < N; I++) {
-    VData[I].Value = remapValue(VData[I].Value, ValueKind, ValueMap);
-  }
-  std::vector<InstrProfValueSiteRecord> &ValueSites =
-      getOrCreateValueSitesForKind(ValueKind);
-  if (N == 0)
-    ValueSites.emplace_back();
-  else
-    ValueSites.emplace_back(VData, VData + N);
-}
-
-#define INSTR_PROF_COMMON_API_IMPL
-#include "llvm/ProfileData/InstrProfData.inc"
-
-/*!
- * ValueProfRecordClosure Interface implementation for  InstrProfRecord
- *  class. These C wrappers are used as adaptors so that C++ code can be
- *  invoked as callbacks.
- */
-uint32_t getNumValueKindsInstrProf(const void *Record) {
-  return reinterpret_cast<const InstrProfRecord *>(Record)->getNumValueKinds();
-}
-
-uint32_t getNumValueSitesInstrProf(const void *Record, uint32_t VKind) {
-  return reinterpret_cast<const InstrProfRecord *>(Record)
-      ->getNumValueSites(VKind);
-}
-
-uint32_t getNumValueDataInstrProf(const void *Record, uint32_t VKind) {
-  return reinterpret_cast<const InstrProfRecord *>(Record)
-      ->getNumValueData(VKind);
-}
-
-uint32_t getNumValueDataForSiteInstrProf(const void *R, uint32_t VK,
-                                         uint32_t S) {
-  return reinterpret_cast<const InstrProfRecord *>(R)
-      ->getNumValueDataForSite(VK, S);
-}
-
-void getValueForSiteInstrProf(const void *R, InstrProfValueData *Dst,
-                              uint32_t K, uint32_t S) {
-  reinterpret_cast<const InstrProfRecord *>(R)->getValueForSite(Dst, K, S);
-}
-
-ValueProfData *allocValueProfDataInstrProf(size_t TotalSizeInBytes) {
-  ValueProfData *VD =
-      (ValueProfData *)(new (::operator new(TotalSizeInBytes)) ValueProfData());
-  memset(VD, 0, TotalSizeInBytes);
-  return VD;
-}
-
-static ValueProfRecordClosure InstrProfRecordClosure = {
-    nullptr,
-    getNumValueKindsInstrProf,
-    getNumValueSitesInstrProf,
-    getNumValueDataInstrProf,
-    getNumValueDataForSiteInstrProf,
-    nullptr,
-    getValueForSiteInstrProf,
-    allocValueProfDataInstrProf};
-
-// Wrapper implementation using the closure mechanism.
-uint32_t ValueProfData::getSize(const InstrProfRecord &Record) {
-  auto Closure = InstrProfRecordClosure;
-  Closure.Record = &Record;
-  return getValueProfDataSize(&Closure);
-}
-
-// Wrapper implementation using the closure mechanism.
-std::unique_ptr<ValueProfData>
-ValueProfData::serializeFrom(const InstrProfRecord &Record) {
-  InstrProfRecordClosure.Record = &Record;
-
-  std::unique_ptr<ValueProfData> VPD(
-      serializeValueProfDataFrom(&InstrProfRecordClosure, nullptr));
-  return VPD;
-}
-
-void ValueProfRecord::deserializeTo(InstrProfRecord &Record,
-                                    InstrProfSymtab *SymTab) {
-  Record.reserveSites(Kind, NumValueSites);
-
-  InstrProfValueData *ValueData = getValueProfRecordValueData(this);
-  for (uint64_t VSite = 0; VSite < NumValueSites; ++VSite) {
-    uint8_t ValueDataCount = this->SiteCountArray[VSite];
-    Record.addValueData(Kind, VSite, ValueData, ValueDataCount, SymTab);
-    ValueData += ValueDataCount;
-  }
-}
-
-// For writing/serializing,  Old is the host endianness, and  New is
-// byte order intended on disk. For Reading/deserialization, Old
-// is the on-disk source endianness, and New is the host endianness.
-void ValueProfRecord::swapBytes(support::endianness Old,
-                                support::endianness New) {
-  using namespace support;
-
-  if (Old == New)
-    return;
-
-  if (getHostEndianness() != Old) {
-    sys::swapByteOrder<uint32_t>(NumValueSites);
-    sys::swapByteOrder<uint32_t>(Kind);
-  }
-  uint32_t ND = getValueProfRecordNumValueData(this);
-  InstrProfValueData *VD = getValueProfRecordValueData(this);
-
-  // No need to swap byte array: SiteCountArrray.
-  for (uint32_t I = 0; I < ND; I++) {
-    sys::swapByteOrder<uint64_t>(VD[I].Value);
-    sys::swapByteOrder<uint64_t>(VD[I].Count);
-  }
-  if (getHostEndianness() == Old) {
-    sys::swapByteOrder<uint32_t>(NumValueSites);
-    sys::swapByteOrder<uint32_t>(Kind);
-  }
-}
-
-void ValueProfData::deserializeTo(InstrProfRecord &Record,
-                                  InstrProfSymtab *SymTab) {
-  if (NumValueKinds == 0)
-    return;
-
-  ValueProfRecord *VR = getFirstValueProfRecord(this);
-  for (uint32_t K = 0; K < NumValueKinds; K++) {
-    VR->deserializeTo(Record, SymTab);
-    VR = getValueProfRecordNext(VR);
-  }
-}
-
-template <class T>
-static T swapToHostOrder(const unsigned char *&D, support::endianness Orig) {
-  using namespace support;
-
-  if (Orig == little)
-    return endian::readNext<T, little, unaligned>(D);
-  else
-    return endian::readNext<T, big, unaligned>(D);
-}
-
-static std::unique_ptr<ValueProfData> allocValueProfData(uint32_t TotalSize) {
-  return std::unique_ptr<ValueProfData>(new (::operator new(TotalSize))
-                                            ValueProfData());
-}
-
-Error ValueProfData::checkIntegrity() {
-  if (NumValueKinds > IPVK_Last + 1)
-    return make_error<InstrProfError>(instrprof_error::malformed);
-  // Total size needs to be mulltiple of quadword size.
-  if (TotalSize % sizeof(uint64_t))
-    return make_error<InstrProfError>(instrprof_error::malformed);
-
-  ValueProfRecord *VR = getFirstValueProfRecord(this);
-  for (uint32_t K = 0; K < this->NumValueKinds; K++) {
-    if (VR->Kind > IPVK_Last)
-      return make_error<InstrProfError>(instrprof_error::malformed);
-    VR = getValueProfRecordNext(VR);
-    if ((char *)VR - (char *)this > (ptrdiff_t)TotalSize)
-      return make_error<InstrProfError>(instrprof_error::malformed);
-  }
-  return Error::success();
-}
-
-Expected<std::unique_ptr<ValueProfData>>
-ValueProfData::getValueProfData(const unsigned char *D,
-                                const unsigned char *const BufferEnd,
-                                support::endianness Endianness) {
-  using namespace support;
-
-  if (D + sizeof(ValueProfData) > BufferEnd)
-    return make_error<InstrProfError>(instrprof_error::truncated);
-
-  const unsigned char *Header = D;
-  uint32_t TotalSize = swapToHostOrder<uint32_t>(Header, Endianness);
-  if (D + TotalSize > BufferEnd)
-    return make_error<InstrProfError>(instrprof_error::too_large);
-
-  std::unique_ptr<ValueProfData> VPD = allocValueProfData(TotalSize);
-  memcpy(VPD.get(), D, TotalSize);
-  // Byte swap.
-  VPD->swapBytesToHost(Endianness);
-
-  Error E = VPD->checkIntegrity();
-  if (E)
-    return std::move(E);
-
-  return std::move(VPD);
-}
-
-void ValueProfData::swapBytesToHost(support::endianness Endianness) {
-  using namespace support;
-
-  if (Endianness == getHostEndianness())
-    return;
-
-  sys::swapByteOrder<uint32_t>(TotalSize);
-  sys::swapByteOrder<uint32_t>(NumValueKinds);
-
-  ValueProfRecord *VR = getFirstValueProfRecord(this);
-  for (uint32_t K = 0; K < NumValueKinds; K++) {
-    VR->swapBytes(Endianness, getHostEndianness());
-    VR = getValueProfRecordNext(VR);
-  }
-}
-
-void ValueProfData::swapBytesFromHost(support::endianness Endianness) {
-  using namespace support;
-
-  if (Endianness == getHostEndianness())
-    return;
-
-  ValueProfRecord *VR = getFirstValueProfRecord(this);
-  for (uint32_t K = 0; K < NumValueKinds; K++) {
-    ValueProfRecord *NVR = getValueProfRecordNext(VR);
-    VR->swapBytes(getHostEndianness(), Endianness);
-    VR = NVR;
-  }
-  sys::swapByteOrder<uint32_t>(TotalSize);
-  sys::swapByteOrder<uint32_t>(NumValueKinds);
-}
-
-void annotateValueSite(Module &M, Instruction &Inst,
-                       const InstrProfRecord &InstrProfR,
-                       InstrProfValueKind ValueKind, uint32_t SiteIdx,
-                       uint32_t MaxMDCount) {
-  uint32_t NV = InstrProfR.getNumValueDataForSite(ValueKind, SiteIdx);
-  if (!NV)
-    return;
-
-  uint64_t Sum = 0;
-  std::unique_ptr<InstrProfValueData[]> VD =
-      InstrProfR.getValueForSite(ValueKind, SiteIdx, &Sum);
-
-  ArrayRef<InstrProfValueData> VDs(VD.get(), NV);
-  annotateValueSite(M, Inst, VDs, Sum, ValueKind, MaxMDCount);
-}
-
-void annotateValueSite(Module &M, Instruction &Inst,
-                       ArrayRef<InstrProfValueData> VDs,
-                       uint64_t Sum, InstrProfValueKind ValueKind,
-                       uint32_t MaxMDCount) {
-  LLVMContext &Ctx = M.getContext();
-  MDBuilder MDHelper(Ctx);
-  SmallVector<Metadata *, 3> Vals;
-  // Tag
-  Vals.push_back(MDHelper.createString("VP"));
-  // Value Kind
-  Vals.push_back(MDHelper.createConstant(
-      ConstantInt::get(Type::getInt32Ty(Ctx), ValueKind)));
-  // Total Count
-  Vals.push_back(
-      MDHelper.createConstant(ConstantInt::get(Type::getInt64Ty(Ctx), Sum)));
-
-  // Value Profile Data
-  uint32_t MDCount = MaxMDCount;
-  for (auto &VD : VDs) {
-    Vals.push_back(MDHelper.createConstant(
-        ConstantInt::get(Type::getInt64Ty(Ctx), VD.Value)));
-    Vals.push_back(MDHelper.createConstant(
-        ConstantInt::get(Type::getInt64Ty(Ctx), VD.Count)));
-    if (--MDCount == 0)
-      break;
-  }
-  Inst.setMetadata(LLVMContext::MD_prof, MDNode::get(Ctx, Vals));
-}
-
-bool getValueProfDataFromInst(const Instruction &Inst,
-                              InstrProfValueKind ValueKind,
-                              uint32_t MaxNumValueData,
-                              InstrProfValueData ValueData[],
-                              uint32_t &ActualNumValueData, uint64_t &TotalC) {
-  MDNode *MD = Inst.getMetadata(LLVMContext::MD_prof);
-  if (!MD)
-    return false;
-
-  unsigned NOps = MD->getNumOperands();
-
-  if (NOps < 5)
-    return false;
-
-  // Operand 0 is a string tag "VP":
-  MDString *Tag = cast<MDString>(MD->getOperand(0));
-  if (!Tag)
-    return false;
-
-  if (!Tag->getString().equals("VP"))
-    return false;
-
-  // Now check kind:
-  ConstantInt *KindInt = mdconst::dyn_extract<ConstantInt>(MD->getOperand(1));
-  if (!KindInt)
-    return false;
-  if (KindInt->getZExtValue() != ValueKind)
-    return false;
-
-  // Get total count
-  ConstantInt *TotalCInt = mdconst::dyn_extract<ConstantInt>(MD->getOperand(2));
-  if (!TotalCInt)
-    return false;
-  TotalC = TotalCInt->getZExtValue();
-
-  ActualNumValueData = 0;
-
-  for (unsigned I = 3; I < NOps; I += 2) {
-    if (ActualNumValueData >= MaxNumValueData)
-      break;
-    ConstantInt *Value = mdconst::dyn_extract<ConstantInt>(MD->getOperand(I));
-    ConstantInt *Count =
-        mdconst::dyn_extract<ConstantInt>(MD->getOperand(I + 1));
-    if (!Value || !Count)
-      return false;
-    ValueData[ActualNumValueData].Value = Value->getZExtValue();
-    ValueData[ActualNumValueData].Count = Count->getZExtValue();
-    ActualNumValueData++;
-  }
-  return true;
-}
-
-MDNode *getPGOFuncNameMetadata(const Function &F) {
-  return F.getMetadata(getPGOFuncNameMetadataName());
-}
-
-void createPGOFuncNameMetadata(Function &F, StringRef PGOFuncName) {
-  // Only for internal linkage functions.
-  if (PGOFuncName == F.getName())
-      return;
-  // Don't create duplicated meta-data.
-  if (getPGOFuncNameMetadata(F))
-    return;
-  LLVMContext &C = F.getContext();
-  MDNode *N = MDNode::get(C, MDString::get(C, PGOFuncName));
-  F.setMetadata(getPGOFuncNameMetadataName(), N);
-}
-
-bool needsComdatForCounter(const Function &F, const Module &M) {
-  if (F.hasComdat())
-    return true;
-
-  if (!Triple(M.getTargetTriple()).supportsCOMDAT())
-    return false;
-
-  // See createPGOFuncNameVar for more details. To avoid link errors, profile
-  // counters for function with available_externally linkage needs to be changed
-  // to linkonce linkage. On ELF based systems, this leads to weak symbols to be
-  // created. Without using comdat, duplicate entries won't be removed by the
-  // linker leading to increased data segement size and raw profile size. Even
-  // worse, since the referenced counter from profile per-function data object
-  // will be resolved to the common strong definition, the profile counts for
-  // available_externally functions will end up being duplicated in raw profile
-  // data. This can result in distorted profile as the counts of those dups
-  // will be accumulated by the profile merger.
-  GlobalValue::LinkageTypes Linkage = F.getLinkage();
-  if (Linkage != GlobalValue::ExternalWeakLinkage &&
-      Linkage != GlobalValue::AvailableExternallyLinkage)
-    return false;
-
-  return true;
-}
-
-// Check if INSTR_PROF_RAW_VERSION_VAR is defined.
-bool isIRPGOFlagSet(const Module *M) {
-  auto IRInstrVar =
-      M->getNamedGlobal(INSTR_PROF_QUOTE(INSTR_PROF_RAW_VERSION_VAR));
-  if (!IRInstrVar || IRInstrVar->isDeclaration() ||
-      IRInstrVar->hasLocalLinkage())
-    return false;
-
-  // Check if the flag is set.
-  if (!IRInstrVar->hasInitializer())
-    return false;
-
-  const Constant *InitVal = IRInstrVar->getInitializer();
-  if (!InitVal)
-    return false;
-
-  return (dyn_cast<ConstantInt>(InitVal)->getZExtValue() &
-          VARIANT_MASK_IR_PROF) != 0;
-}
-
-// Check if we can safely rename this Comdat function.
-bool canRenameComdatFunc(const Function &F, bool CheckAddressTaken) {
-  if (F.getName().empty())
-    return false;
-  if (!needsComdatForCounter(F, *(F.getParent())))
-    return false;
-  // Unsafe to rename the address-taken function (which can be used in
-  // function comparison).
-  if (CheckAddressTaken && F.hasAddressTaken())
-    return false;
-  // Only safe to do if this function may be discarded if it is not used
-  // in the compilation unit.
-  if (!GlobalValue::isDiscardableIfUnused(F.getLinkage()))
-    return false;
-
-  // For AvailableExternallyLinkage functions.
-  if (!F.hasComdat()) {
-    assert(F.getLinkage() == GlobalValue::AvailableExternallyLinkage);
-    return true;
-  }
-  return true;
-}
-
-// Parse the value profile options.
-void getMemOPSizeRangeFromOption(StringRef MemOPSizeRange, int64_t &RangeStart,
-                                 int64_t &RangeLast) {
-  static const int64_t DefaultMemOPSizeRangeStart = 0;
-  static const int64_t DefaultMemOPSizeRangeLast = 8;
-  RangeStart = DefaultMemOPSizeRangeStart;
-  RangeLast = DefaultMemOPSizeRangeLast;
-
-  if (!MemOPSizeRange.empty()) {
-    auto Pos = MemOPSizeRange.find(':');
-    if (Pos != std::string::npos) {
-      if (Pos > 0)
-        MemOPSizeRange.substr(0, Pos).getAsInteger(10, RangeStart);
-      if (Pos < MemOPSizeRange.size() - 1)
-        MemOPSizeRange.substr(Pos + 1).getAsInteger(10, RangeLast);
-    } else
-      MemOPSizeRange.getAsInteger(10, RangeLast);
-  }
-  assert(RangeLast >= RangeStart);
-}
-
-} // end namespace llvm