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📄 ABIBreak.cpp(811 B)
📄 AMDGPUMetadata.cpp(9.37 KB)
📄 APFloat.cpp(155.26 KB)
📄 APInt.cpp(98.08 KB)
📄 APSInt.cpp(1.44 KB)
📄 ARMAttributeParser.cpp(13.94 KB)
📄 ARMBuildAttrs.cpp(3.45 KB)
📄 ARMTargetParser.cpp(18.09 KB)
📄 ARMWinEH.cpp(1.08 KB)
📄 Allocator.cpp(1.35 KB)
📄 Atomic.cpp(1.6 KB)
📄 BinaryStreamError.cpp(1.76 KB)
📄 BinaryStreamReader.cpp(5.24 KB)
📄 BinaryStreamRef.cpp(4.76 KB)
📄 BinaryStreamWriter.cpp(3.36 KB)
📄 BlockFrequency.cpp(2.12 KB)
📄 BranchProbability.cpp(3.44 KB)
📄 BuryPointer.cpp(1.11 KB)
📄 COM.cpp(737 B)
📄 COPYRIGHT.regex(2.65 KB)
📄 CRC.cpp(5.23 KB)
📄 CachePruning.cpp(10.33 KB)
📄 Chrono.cpp(3.17 KB)
📄 CodeGenCoverage.cpp(3.61 KB)
📄 CommandLine.cpp(89.06 KB)
📄 Compression.cpp(3.84 KB)
📄 ConvertUTF.cpp(27.27 KB)
📄 ConvertUTFWrapper.cpp(8.66 KB)
📄 CrashRecoveryContext.cpp(15.45 KB)
📄 DAGDeltaAlgorithm.cpp(12.47 KB)
📄 DJB.cpp(2.71 KB)
📄 DataExtractor.cpp(7.25 KB)
📄 Debug.cpp(5.64 KB)
📄 DebugCounter.cpp(4.95 KB)
📄 DeltaAlgorithm.cpp(3.41 KB)
📄 DynamicLibrary.cpp(6.25 KB)
📄 ELFAttributeParser.cpp(7.27 KB)
📄 ELFAttributes.cpp(1.27 KB)
📄 Errno.cpp(2.18 KB)
📄 Error.cpp(4.72 KB)
📄 ErrorHandling.cpp(11.08 KB)
📄 ExtensibleRTTI.cpp(446 B)
📄 FileCheck.cpp(95.77 KB)
📄 FileCheckImpl.h(34.14 KB)
📄 FileCollector.cpp(9.01 KB)
📄 FileOutputBuffer.cpp(6.62 KB)
📄 FileUtilities.cpp(10.81 KB)
📄 FoldingSet.cpp(15.89 KB)
📄 FormatVariadic.cpp(5.17 KB)
📄 FormattedStream.cpp(5.29 KB)
📄 GlobPattern.cpp(5 KB)
📄 GraphWriter.cpp(9.21 KB)
📄 Hashing.cpp(1.16 KB)
📄 Host.cpp(51.63 KB)
📄 InitLLVM.cpp(1.92 KB)
📄 IntEqClasses.cpp(2.18 KB)
📄 IntervalMap.cpp(4.4 KB)
📄 ItaniumManglingCanonicalizer.cpp(10.77 KB)
📄 JSON.cpp(19.1 KB)
📄 KnownBits.cpp(3.78 KB)
📄 LEB128.cpp(1.19 KB)
📄 LineIterator.cpp(2.61 KB)
📄 Locale.cpp(377 B)
📄 LockFileManager.cpp(10.64 KB)
📄 LowLevelType.cpp(2.09 KB)
📄 MD5.cpp(8.99 KB)
📄 ManagedStatic.cpp(2.37 KB)
📄 MathExtras.cpp(913 B)
📄 MemAlloc.cpp(1.01 KB)
📄 Memory.cpp(1.57 KB)
📄 MemoryBuffer.cpp(18.99 KB)
📄 NativeFormatting.cpp(7.54 KB)
📄 OptimizedStructLayout.cpp(16.7 KB)
📄 Optional.cpp(530 B)
📄 Parallel.cpp(5.08 KB)
📄 Path.cpp(36.52 KB)
📄 PluginLoader.cpp(1.63 KB)
📄 PrettyStackTrace.cpp(10.33 KB)
📄 Process.cpp(3.27 KB)
📄 Program.cpp(3.54 KB)
📄 RISCVAttributeParser.cpp(2.06 KB)
📄 RISCVAttributes.cpp(970 B)
📄 RWMutex.cpp(3.23 KB)
📄 RandomNumberGenerator.cpp(2.86 KB)
📄 Regex.cpp(6.38 KB)
📄 SHA1.cpp(10.43 KB)
📄 ScaledNumber.cpp(9.09 KB)
📄 ScopedPrinter.cpp(1.19 KB)
📄 Signals.cpp(8.35 KB)
📄 Signposts.cpp(3.24 KB)
📄 SmallPtrSet.cpp(9.21 KB)
📄 SmallVector.cpp(3.99 KB)
📄 SourceMgr.cpp(20.08 KB)
📄 SpecialCaseList.cpp(7.48 KB)
📄 Statistic.cpp(8.85 KB)
📄 StringExtras.cpp(4.34 KB)
📄 StringMap.cpp(9.31 KB)
📄 StringRef.cpp(17.41 KB)
📄 StringSaver.cpp(882 B)
📄 SuffixTree.cpp(7.23 KB)
📄 SymbolRemappingReader.cpp(2.94 KB)
📄 SystemUtils.cpp(1.06 KB)
📄 TarWriter.cpp(7.23 KB)
📄 TargetParser.cpp(9.86 KB)
📄 TargetRegistry.cpp(4.6 KB)
📄 ThreadLocal.cpp(1.68 KB)
📄 ThreadPool.cpp(4.4 KB)
📄 Threading.cpp(4.55 KB)
📄 TimeProfiler.cpp(11.63 KB)
📄 Timer.cpp(14.14 KB)
📄 ToolOutputFile.cpp(1.83 KB)
📄 TrigramIndex.cpp(3.24 KB)
📄 Triple.cpp(53.17 KB)
📄 Twine.cpp(4.6 KB)
📄 Unicode.cpp(20.14 KB)
📄 UnicodeCaseFold.cpp(15.32 KB)
📁 Unix
📄 Valgrind.cpp(1.6 KB)
📄 VersionTuple.cpp(2.74 KB)
📄 VirtualFileSystem.cpp(74.17 KB)
📄 Watchdog.cpp(738 B)
📁 Windows
📄 WithColor.cpp(4.35 KB)
📄 X86TargetParser.cpp(27.21 KB)
📄 YAMLParser.cpp(68.53 KB)
📄 YAMLTraits.cpp(28.37 KB)
📄 Z3Solver.cpp(31.44 KB)
📄 circular_raw_ostream.cpp(1.3 KB)
📄 raw_os_ostream.cpp(995 B)
📄 raw_ostream.cpp(28.97 KB)
📄 regcomp.c(39.42 KB)
📄 regengine.inc(26.49 KB)
📄 regerror.c(4.42 KB)
📄 regex2.h(6.82 KB)
📄 regex_impl.h(3.63 KB)
📄 regexec.c(5.71 KB)
📄 regfree.c(2.49 KB)
📄 regstrlcpy.c(1.56 KB)
📄 regutils.h(2.25 KB)
📄 xxhash.cpp(4.07 KB)

Editing: Timer.cpp

//===-- Timer.cpp - Interval Timing Support -------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
/// \file Interval Timing implementation.
//
//===----------------------------------------------------------------------===//

#include "llvm/Support/Timer.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/Mutex.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/Signposts.h"
#include "llvm/Support/YAMLTraits.h"
#include "llvm/Support/raw_ostream.h"
#include <limits>

using namespace llvm;

// This ugly hack is brought to you courtesy of constructor/destructor ordering
// being unspecified by C++.  Basically the problem is that a Statistic object
// gets destroyed, which ends up calling 'GetLibSupportInfoOutputFile()'
// (below), which calls this function.  LibSupportInfoOutputFilename used to be
// a global variable, but sometimes it would get destroyed before the Statistic,
// causing havoc to ensue.  We "fix" this by creating the string the first time
// it is needed and never destroying it.
static ManagedStatic<std::string> LibSupportInfoOutputFilename;
static std::string &getLibSupportInfoOutputFilename() {
  return *LibSupportInfoOutputFilename;
}

static ManagedStatic<sys::SmartMutex<true> > TimerLock;

/// Allows llvm::Timer to emit signposts when supported.
static ManagedStatic<SignpostEmitter> Signposts;

namespace {
  static cl::opt<bool>
  TrackSpace("track-memory", cl::desc("Enable -time-passes memory "
                                      "tracking (this may be slow)"),
             cl::Hidden);

static cl::opt<std::string, true>
  InfoOutputFilename("info-output-file", cl::value_desc("filename"),
                     cl::desc("File to append -stats and -timer output to"),
                   cl::Hidden, cl::location(getLibSupportInfoOutputFilename()));
}

std::unique_ptr<raw_fd_ostream> llvm::CreateInfoOutputFile() {
  const std::string &OutputFilename = getLibSupportInfoOutputFilename();
  if (OutputFilename.empty())
    return std::make_unique<raw_fd_ostream>(2, false); // stderr.
  if (OutputFilename == "-")
    return std::make_unique<raw_fd_ostream>(1, false); // stdout.

// Append mode is used because the info output file is opened and closed
  // each time -stats or -time-passes wants to print output to it. To
  // compensate for this, the test-suite Makefiles have code to delete the
  // info output file before running commands which write to it.
  std::error_code EC;
  auto Result = std::make_unique<raw_fd_ostream>(
      OutputFilename, EC, sys::fs::OF_Append | sys::fs::OF_Text);
  if (!EC)
    return Result;

errs() << "Error opening info-output-file '"
    << OutputFilename << " for appending!\n";
  return std::make_unique<raw_fd_ostream>(2, false); // stderr.
}

namespace {
struct CreateDefaultTimerGroup {
  static void *call() {
    return new TimerGroup("misc", "Miscellaneous Ungrouped Timers");
  }
};
} // namespace
static ManagedStatic<TimerGroup, CreateDefaultTimerGroup> DefaultTimerGroup;
static TimerGroup *getDefaultTimerGroup() { return &*DefaultTimerGroup; }

//===----------------------------------------------------------------------===//
// Timer Implementation
//===----------------------------------------------------------------------===//

void Timer::init(StringRef TimerName, StringRef TimerDescription) {
  init(TimerName, TimerDescription, *getDefaultTimerGroup());
}

void Timer::init(StringRef TimerName, StringRef TimerDescription,
                 TimerGroup &tg) {
  assert(!TG && "Timer already initialized");
  Name.assign(TimerName.begin(), TimerName.end());
  Description.assign(TimerDescription.begin(), TimerDescription.end());
  Running = Triggered = false;
  TG = &tg;
  TG->addTimer(*this);
}

Timer::~Timer() {
  if (!TG) return;  // Never initialized, or already cleared.
  TG->removeTimer(*this);
}

static inline size_t getMemUsage() {
  if (!TrackSpace) return 0;
  return sys::Process::GetMallocUsage();
}

TimeRecord TimeRecord::getCurrentTime(bool Start) {
  using Seconds = std::chrono::duration<double, std::ratio<1>>;
  TimeRecord Result;
  sys::TimePoint<> now;
  std::chrono::nanoseconds user, sys;

if (Start) {
    Result.MemUsed = getMemUsage();
    sys::Process::GetTimeUsage(now, user, sys);
  } else {
    sys::Process::GetTimeUsage(now, user, sys);
    Result.MemUsed = getMemUsage();
  }

Result.WallTime = Seconds(now.time_since_epoch()).count();
  Result.UserTime = Seconds(user).count();
  Result.SystemTime = Seconds(sys).count();
  return Result;
}

void Timer::startTimer() {
  assert(!Running && "Cannot start a running timer");
  Running = Triggered = true;
  Signposts->startTimerInterval(this);
  StartTime = TimeRecord::getCurrentTime(true);
}

void Timer::stopTimer() {
  assert(Running && "Cannot stop a paused timer");
  Running = false;
  Time += TimeRecord::getCurrentTime(false);
  Time -= StartTime;
  Signposts->endTimerInterval(this);
}

void Timer::clear() {
  Running = Triggered = false;
  Time = StartTime = TimeRecord();
}

static void printVal(double Val, double Total, raw_ostream &OS) {
  if (Total < 1e-7)   // Avoid dividing by zero.
    OS << "        -----     ";
  else
    OS << format("  %7.4f (%5.1f%%)", Val, Val*100/Total);
}

void TimeRecord::print(const TimeRecord &Total, raw_ostream &OS) const {
  if (Total.getUserTime())
    printVal(getUserTime(), Total.getUserTime(), OS);
  if (Total.getSystemTime())
    printVal(getSystemTime(), Total.getSystemTime(), OS);
  if (Total.getProcessTime())
    printVal(getProcessTime(), Total.getProcessTime(), OS);
  printVal(getWallTime(), Total.getWallTime(), OS);

OS << "  ";

if (Total.getMemUsed())
    OS << format("%9" PRId64 "  ", (int64_t)getMemUsed());
}

//===----------------------------------------------------------------------===//
//   NamedRegionTimer Implementation
//===----------------------------------------------------------------------===//

namespace {

typedef StringMap<Timer> Name2TimerMap;

class Name2PairMap {
  StringMap<std::pair<TimerGroup*, Name2TimerMap> > Map;
public:
  ~Name2PairMap() {
    for (StringMap<std::pair<TimerGroup*, Name2TimerMap> >::iterator
         I = Map.begin(), E = Map.end(); I != E; ++I)
      delete I->second.first;
  }

Timer &get(StringRef Name, StringRef Description, StringRef GroupName,
             StringRef GroupDescription) {
    sys::SmartScopedLock<true> L(*TimerLock);

std::pair<TimerGroup*, Name2TimerMap> &GroupEntry = Map[GroupName];

if (!GroupEntry.first)
      GroupEntry.first = new TimerGroup(GroupName, GroupDescription);

Timer &T = GroupEntry.second[Name];
    if (!T.isInitialized())
      T.init(Name, Description, *GroupEntry.first);
    return T;
  }
};

}

static ManagedStatic<Name2PairMap> NamedGroupedTimers;

NamedRegionTimer::NamedRegionTimer(StringRef Name, StringRef Description,
                                   StringRef GroupName,
                                   StringRef GroupDescription, bool Enabled)
  : TimeRegion(!Enabled ? nullptr
                 : &NamedGroupedTimers->get(Name, Description, GroupName,
                                            GroupDescription)) {}

//===----------------------------------------------------------------------===//
//   TimerGroup Implementation
//===----------------------------------------------------------------------===//

/// This is the global list of TimerGroups, maintained by the TimerGroup
/// ctor/dtor and is protected by the TimerLock lock.
static TimerGroup *TimerGroupList = nullptr;

TimerGroup::TimerGroup(StringRef Name, StringRef Description)
  : Name(Name.begin(), Name.end()),
    Description(Description.begin(), Description.end()) {
  // Add the group to TimerGroupList.
  sys::SmartScopedLock<true> L(*TimerLock);
  if (TimerGroupList)
    TimerGroupList->Prev = &Next;
  Next = TimerGroupList;
  Prev = &TimerGroupList;
  TimerGroupList = this;
}

TimerGroup::TimerGroup(StringRef Name, StringRef Description,
                       const StringMap<TimeRecord> &Records)
    : TimerGroup(Name, Description) {
  TimersToPrint.reserve(Records.size());
  for (const auto &P : Records)
    TimersToPrint.emplace_back(P.getValue(), std::string(P.getKey()),
                               std::string(P.getKey()));
  assert(TimersToPrint.size() == Records.size() && "Size mismatch");
}

TimerGroup::~TimerGroup() {
  // If the timer group is destroyed before the timers it owns, accumulate and
  // print the timing data.
  while (FirstTimer)
    removeTimer(*FirstTimer);

// Remove the group from the TimerGroupList.
  sys::SmartScopedLock<true> L(*TimerLock);
  *Prev = Next;
  if (Next)
    Next->Prev = Prev;
}

void TimerGroup::removeTimer(Timer &T) {
  sys::SmartScopedLock<true> L(*TimerLock);

// If the timer was started, move its data to TimersToPrint.
  if (T.hasTriggered())
    TimersToPrint.emplace_back(T.Time, T.Name, T.Description);

T.TG = nullptr;

// Unlink the timer from our list.
  *T.Prev = T.Next;
  if (T.Next)
    T.Next->Prev = T.Prev;

// Print the report when all timers in this group are destroyed if some of
  // them were started.
  if (FirstTimer || TimersToPrint.empty())
    return;

std::unique_ptr<raw_ostream> OutStream = CreateInfoOutputFile();
  PrintQueuedTimers(*OutStream);
}

void TimerGroup::addTimer(Timer &T) {
  sys::SmartScopedLock<true> L(*TimerLock);

// Add the timer to our list.
  if (FirstTimer)
    FirstTimer->Prev = &T.Next;
  T.Next = FirstTimer;
  T.Prev = &FirstTimer;
  FirstTimer = &T;
}

void TimerGroup::PrintQueuedTimers(raw_ostream &OS) {
  // Sort the timers in descending order by amount of time taken.
  llvm::sort(TimersToPrint);

TimeRecord Total;
  for (const PrintRecord &Record : TimersToPrint)
    Total += Record.Time;

// Print out timing header.
  OS << "===" << std::string(73, '-') << "===\n";
  // Figure out how many spaces to indent TimerGroup name.
  unsigned Padding = (80-Description.length())/2;
  if (Padding > 80) Padding = 0;         // Don't allow "negative" numbers
  OS.indent(Padding) << Description << '\n';
  OS << "===" << std::string(73, '-') << "===\n";

// If this is not an collection of ungrouped times, print the total time.
  // Ungrouped timers don't really make sense to add up.  We still print the
  // TOTAL line to make the percentages make sense.
  if (this != getDefaultTimerGroup())
    OS << format("  Total Execution Time: %5.4f seconds (%5.4f wall clock)\n",
                 Total.getProcessTime(), Total.getWallTime());
  OS << '\n';

if (Total.getUserTime())
    OS << "   ---User Time---";
  if (Total.getSystemTime())
    OS << "   --System Time--";
  if (Total.getProcessTime())
    OS << "   --User+System--";
  OS << "   ---Wall Time---";
  if (Total.getMemUsed())
    OS << "  ---Mem---";
  OS << "  --- Name ---\n";

// Loop through all of the timing data, printing it out.
  for (const PrintRecord &Record : make_range(TimersToPrint.rbegin(),
                                              TimersToPrint.rend())) {
    Record.Time.print(Total, OS);
    OS << Record.Description << '\n';
  }

Total.print(Total, OS);
  OS << "Total\n\n";
  OS.flush();

TimersToPrint.clear();
}

void TimerGroup::prepareToPrintList(bool ResetTime) {
  // See if any of our timers were started, if so add them to TimersToPrint.
  for (Timer *T = FirstTimer; T; T = T->Next) {
    if (!T->hasTriggered()) continue;
    bool WasRunning = T->isRunning();
    if (WasRunning)
      T->stopTimer();

TimersToPrint.emplace_back(T->Time, T->Name, T->Description);

if (ResetTime)
      T->clear();

if (WasRunning)
      T->startTimer();
  }
}

void TimerGroup::print(raw_ostream &OS, bool ResetAfterPrint) {
  {
    // After preparing the timers we can free the lock
    sys::SmartScopedLock<true> L(*TimerLock);
    prepareToPrintList(ResetAfterPrint);
  }

// If any timers were started, print the group.
  if (!TimersToPrint.empty())
    PrintQueuedTimers(OS);
}

void TimerGroup::clear() {
  sys::SmartScopedLock<true> L(*TimerLock);
  for (Timer *T = FirstTimer; T; T = T->Next)
    T->clear();
}

void TimerGroup::printAll(raw_ostream &OS) {
  sys::SmartScopedLock<true> L(*TimerLock);

for (TimerGroup *TG = TimerGroupList; TG; TG = TG->Next)
    TG->print(OS);
}

void TimerGroup::clearAll() {
  sys::SmartScopedLock<true> L(*TimerLock);
  for (TimerGroup *TG = TimerGroupList; TG; TG = TG->Next)
    TG->clear();
}

void TimerGroup::printJSONValue(raw_ostream &OS, const PrintRecord &R,
                                const char *suffix, double Value) {
  assert(yaml::needsQuotes(Name) == yaml::QuotingType::None &&
         "TimerGroup name should not need quotes");
  assert(yaml::needsQuotes(R.Name) == yaml::QuotingType::None &&
         "Timer name should not need quotes");
  constexpr auto max_digits10 = std::numeric_limits<double>::max_digits10;
  OS << "\t\"time." << Name << '.' << R.Name << suffix
     << "\": " << format("%.*e", max_digits10 - 1, Value);
}

const char *TimerGroup::printJSONValues(raw_ostream &OS, const char *delim) {
  sys::SmartScopedLock<true> L(*TimerLock);

prepareToPrintList(false);
  for (const PrintRecord &R : TimersToPrint) {
    OS << delim;
    delim = ",\n";

const TimeRecord &T = R.Time;
    printJSONValue(OS, R, ".wall", T.getWallTime());
    OS << delim;
    printJSONValue(OS, R, ".user", T.getUserTime());
    OS << delim;
    printJSONValue(OS, R, ".sys", T.getSystemTime());
    if (T.getMemUsed()) {
      OS << delim;
      printJSONValue(OS, R, ".mem", T.getMemUsed());
    }
  }
  TimersToPrint.clear();
  return delim;
}

const char *TimerGroup::printAllJSONValues(raw_ostream &OS, const char *delim) {
  sys::SmartScopedLock<true> L(*TimerLock);
  for (TimerGroup *TG = TimerGroupList; TG; TG = TG->Next)
    delim = TG->printJSONValues(OS, delim);
  return delim;
}

void TimerGroup::ConstructTimerLists() {
  (void)*NamedGroupedTimers;
}

std::unique_ptr<TimerGroup> TimerGroup::aquireDefaultGroup() {
  return std::unique_ptr<TimerGroup>(DefaultTimerGroup.claim());
}

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Editing: Timer.cpp

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