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📄 APFloat.h(48.83 KB)
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📄 APSInt.h(11.75 KB)
📄 AllocatorList.h(7.53 KB)
📄 Any.h(5.05 KB)
📄 ArrayRef.h(17.92 KB)
📄 BitVector.h(29.74 KB)
📄 Bitfields.h(11.65 KB)
📄 BitmaskEnum.h(5.53 KB)
📄 BreadthFirstIterator.h(4.82 KB)
📄 CachedHashString.h(5.9 KB)
📄 CoalescingBitVector.h(14.91 KB)
📄 DAGDeltaAlgorithm.h(3.13 KB)
📄 DeltaAlgorithm.h(3.54 KB)
📄 DenseMap.h(43.14 KB)
📄 DenseMapInfo.h(11.4 KB)
📄 DenseSet.h(9.33 KB)
📄 DepthFirstIterator.h(10.37 KB)
📄 DirectedGraph.h(9.56 KB)
📄 EnumeratedArray.h(1.6 KB)
📄 EpochTracker.h(3.2 KB)
📄 EquivalenceClasses.h(10.52 KB)
📄 FloatingPointMode.h(5.62 KB)
📄 FoldingSet.h(30.16 KB)
📄 FunctionExtras.h(14.55 KB)
📄 GraphTraits.h(5.71 KB)
📄 Hashing.h(25.12 KB)
📄 ImmutableList.h(7.57 KB)
📄 ImmutableMap.h(10.84 KB)
📄 ImmutableSet.h(37.52 KB)
📄 IndexedMap.h(2.5 KB)
📄 IntEqClasses.h(2.87 KB)
📄 IntervalMap.h(72.88 KB)
📄 IntrusiveRefCntPtr.h(8.1 KB)
📄 MapVector.h(7.79 KB)
📄 None.h(983 B)
📄 Optional.h(10.82 KB)
📄 PackedVector.h(4.17 KB)
📄 PointerEmbeddedInt.h(4.05 KB)
📄 PointerIntPair.h(8.72 KB)
📄 PointerSumType.h(11.61 KB)
📄 PointerUnion.h(10.17 KB)
📄 PostOrderIterator.h(11.05 KB)
📄 PriorityQueue.h(2.69 KB)
📄 PriorityWorklist.h(8.11 KB)
📄 SCCIterator.h(8.02 KB)
📄 STLExtras.h(70.56 KB)
📄 ScopeExit.h(1.83 KB)
📄 ScopedHashTable.h(8.27 KB)
📄 Sequence.h(2.59 KB)
📄 SetOperations.h(2.58 KB)
📄 SetVector.h(9.39 KB)
📄 SmallBitVector.h(20.36 KB)
📄 SmallPtrSet.h(16.93 KB)
📄 SmallSet.h(8.37 KB)
📄 SmallString.h(8.55 KB)
📄 SmallVector.h(32.33 KB)
📄 SparseBitVector.h(26.2 KB)
📄 SparseMultiSet.h(17.83 KB)
📄 SparseSet.h(11.41 KB)
📄 Statistic.h(7.01 KB)
📄 StringExtras.h(13.25 KB)
📄 StringMap.h(15.7 KB)
📄 StringMapEntry.h(4.83 KB)
📄 StringRef.h(31.68 KB)
📄 StringSet.h(1.51 KB)
📄 StringSwitch.h(6.25 KB)
📄 TinyPtrVector.h(10.19 KB)
📄 Triple.h(27.4 KB)
📄 Twine.h(17.48 KB)
📄 TypeSwitch.h(5.82 KB)
📄 UniqueVector.h(3.09 KB)
📄 Waymarking.h(11.96 KB)
📄 bit.h(2.26 KB)
📄 edit_distance.h(3.57 KB)
📄 fallible_iterator.h(8.31 KB)
📄 ilist.h(13.68 KB)
📄 ilist_base.h(2.72 KB)
📄 ilist_iterator.h(7.21 KB)
📄 ilist_node.h(9.84 KB)
📄 ilist_node_base.h(1.7 KB)
📄 ilist_node_options.h(5.07 KB)
📄 iterator.h(13.46 KB)
📄 iterator_range.h(2.22 KB)
📄 simple_ilist.h(10.78 KB)

Editing: Statistic.h

//===-- llvm/ADT/Statistic.h - Easy way to expose stats ---------*- C++ -*-===//
//
// 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 defines the 'Statistic' class, which is designed to be an easy way
// to expose various metrics from passes.  These statistics are printed at the
// end of a run (from llvm_shutdown), when the -stats command line option is
// passed on the command line.
//
// This is useful for reporting information like the number of instructions
// simplified, optimized or removed by various transformations, like this:
//
// static Statistic NumInstsKilled("gcse", "Number of instructions killed");
//
// Later, in the code: ++NumInstsKilled;
//
// NOTE: Statistics *must* be declared as global variables.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_ADT_STATISTIC_H
#define LLVM_ADT_STATISTIC_H

#include "llvm/Config/llvm-config.h"
#include "llvm/Support/Compiler.h"
#include <atomic>
#include <memory>
#include <vector>

// Determine whether statistics should be enabled. We must do it here rather
// than in CMake because multi-config generators cannot determine this at
// configure time.
#if !defined(NDEBUG) || LLVM_FORCE_ENABLE_STATS
#define LLVM_ENABLE_STATS 1
#endif

namespace llvm {

class raw_ostream;
class raw_fd_ostream;
class StringRef;

class StatisticBase {
public:
  const char *DebugType;
  const char *Name;
  const char *Desc;

StatisticBase(const char *DebugType, const char *Name, const char *Desc)
      : DebugType(DebugType), Name(Name), Desc(Desc) {}

const char *getDebugType() const { return DebugType; }
  const char *getName() const { return Name; }
  const char *getDesc() const { return Desc; }
};

class TrackingStatistic : public StatisticBase {
public:
  std::atomic<unsigned> Value;
  std::atomic<bool> Initialized;

TrackingStatistic(const char *DebugType, const char *Name, const char *Desc)
      : StatisticBase(DebugType, Name, Desc), Value(0), Initialized(false) {}

unsigned getValue() const { return Value.load(std::memory_order_relaxed); }

// Allow use of this class as the value itself.
  operator unsigned() const { return getValue(); }

const TrackingStatistic &operator=(unsigned Val) {
    Value.store(Val, std::memory_order_relaxed);
    return init();
  }

const TrackingStatistic &operator++() {
    Value.fetch_add(1, std::memory_order_relaxed);
    return init();
  }

unsigned operator++(int) {
    init();
    return Value.fetch_add(1, std::memory_order_relaxed);
  }

const TrackingStatistic &operator--() {
    Value.fetch_sub(1, std::memory_order_relaxed);
    return init();
  }

unsigned operator--(int) {
    init();
    return Value.fetch_sub(1, std::memory_order_relaxed);
  }

const TrackingStatistic &operator+=(unsigned V) {
    if (V == 0)
      return *this;
    Value.fetch_add(V, std::memory_order_relaxed);
    return init();
  }

const TrackingStatistic &operator-=(unsigned V) {
    if (V == 0)
      return *this;
    Value.fetch_sub(V, std::memory_order_relaxed);
    return init();
  }

void updateMax(unsigned V) {
    unsigned PrevMax = Value.load(std::memory_order_relaxed);
    // Keep trying to update max until we succeed or another thread produces
    // a bigger max than us.
    while (V > PrevMax && !Value.compare_exchange_weak(
                              PrevMax, V, std::memory_order_relaxed)) {
    }
    init();
  }

protected:
  TrackingStatistic &init() {
    if (!Initialized.load(std::memory_order_acquire))
      RegisterStatistic();
    return *this;
  }

void RegisterStatistic();
};

class NoopStatistic : public StatisticBase {
public:
  using StatisticBase::StatisticBase;

unsigned getValue() const { return 0; }

// Allow use of this class as the value itself.
  operator unsigned() const { return 0; }

const NoopStatistic &operator=(unsigned Val) { return *this; }

const NoopStatistic &operator++() { return *this; }

unsigned operator++(int) { return 0; }

const NoopStatistic &operator--() { return *this; }

unsigned operator--(int) { return 0; }

const NoopStatistic &operator+=(const unsigned &V) { return *this; }

const NoopStatistic &operator-=(const unsigned &V) { return *this; }

void updateMax(unsigned V) {}
};

#if LLVM_ENABLE_STATS
using Statistic = TrackingStatistic;
#else
using Statistic = NoopStatistic;
#endif

// STATISTIC - A macro to make definition of statistics really simple.  This
// automatically passes the DEBUG_TYPE of the file into the statistic.
#define STATISTIC(VARNAME, DESC)                                               \
  static llvm::Statistic VARNAME = {DEBUG_TYPE, #VARNAME, DESC}

// ALWAYS_ENABLED_STATISTIC - A macro to define a statistic like STATISTIC but
// it is enabled even if LLVM_ENABLE_STATS is off.
#define ALWAYS_ENABLED_STATISTIC(VARNAME, DESC)                                \
  static llvm::TrackingStatistic VARNAME = {DEBUG_TYPE, #VARNAME, DESC}

/// Enable the collection and printing of statistics.
void EnableStatistics(bool DoPrintOnExit = true);

/// Check if statistics are enabled.
bool AreStatisticsEnabled();

/// Return a file stream to print our output on.
std::unique_ptr<raw_fd_ostream> CreateInfoOutputFile();

/// Print statistics to the file returned by CreateInfoOutputFile().
void PrintStatistics();

/// Print statistics to the given output stream.
void PrintStatistics(raw_ostream &OS);

/// Print statistics in JSON format. This does include all global timers (\see
/// Timer, TimerGroup). Note that the timers are cleared after printing and will
/// not be printed in human readable form or in a second call of
/// PrintStatisticsJSON().
void PrintStatisticsJSON(raw_ostream &OS);

/// Get the statistics. This can be used to look up the value of
/// statistics without needing to parse JSON.
///
/// This function does not prevent statistics being updated by other threads
/// during it's execution. It will return the value at the point that it is
/// read. However, it will prevent new statistics from registering until it
/// completes.
const std::vector<std::pair<StringRef, unsigned>> GetStatistics();

/// Reset the statistics. This can be used to zero and de-register the
/// statistics in order to measure a compilation.
///
/// When this function begins to call destructors prior to returning, all
/// statistics will be zero and unregistered. However, that might not remain the
/// case by the time this function finishes returning. Whether update from other
/// threads are lost or merely deferred until during the function return is
/// timing sensitive.
///
/// Callers who intend to use this to measure statistics for a single
/// compilation should ensure that no compilations are in progress at the point
/// this function is called and that only one compilation executes until calling
/// GetStatistics().
void ResetStatistics();

} // end namespace llvm

#endif // LLVM_ADT_STATISTIC_H

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Editing: Statistic.h

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