mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 11:13:28 +01:00
104 lines
2.9 KiB
C++
104 lines
2.9 KiB
C++
//===- ProfileCommon.h - Common profiling APIs. -----------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains data structures and functions common to both instrumented
|
|
// and sample profiling.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_PROFILEDATA_PROFILECOMMON_H
|
|
#define LLVM_PROFILEDATA_PROFILECOMMON_H
|
|
|
|
#include "llvm/ADT/ArrayRef.h"
|
|
#include "llvm/IR/ProfileSummary.h"
|
|
#include "llvm/Support/Error.h"
|
|
#include <algorithm>
|
|
#include <cstdint>
|
|
#include <functional>
|
|
#include <map>
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
namespace llvm {
|
|
|
|
struct InstrProfRecord;
|
|
|
|
namespace sampleprof {
|
|
|
|
class FunctionSamples;
|
|
|
|
} // end namespace sampleprof
|
|
|
|
inline const char *getHotSectionPrefix() { return ".hot"; }
|
|
inline const char *getUnlikelySectionPrefix() { return ".unlikely"; }
|
|
|
|
class ProfileSummaryBuilder {
|
|
private:
|
|
/// We keep track of the number of times a count (block count or samples)
|
|
/// appears in the profile. The map is kept sorted in the descending order of
|
|
/// counts.
|
|
std::map<uint64_t, uint32_t, std::greater<uint64_t>> CountFrequencies;
|
|
std::vector<uint32_t> DetailedSummaryCutoffs;
|
|
|
|
protected:
|
|
SummaryEntryVector DetailedSummary;
|
|
uint64_t TotalCount = 0;
|
|
uint64_t MaxCount = 0;
|
|
uint64_t MaxFunctionCount = 0;
|
|
uint32_t NumCounts = 0;
|
|
uint32_t NumFunctions = 0;
|
|
|
|
ProfileSummaryBuilder(std::vector<uint32_t> Cutoffs)
|
|
: DetailedSummaryCutoffs(std::move(Cutoffs)) {}
|
|
~ProfileSummaryBuilder() = default;
|
|
|
|
inline void addCount(uint64_t Count);
|
|
void computeDetailedSummary();
|
|
|
|
public:
|
|
/// \brief A vector of useful cutoff values for detailed summary.
|
|
static const ArrayRef<uint32_t> DefaultCutoffs;
|
|
};
|
|
|
|
class InstrProfSummaryBuilder final : public ProfileSummaryBuilder {
|
|
uint64_t MaxInternalBlockCount = 0;
|
|
|
|
inline void addEntryCount(uint64_t Count);
|
|
inline void addInternalCount(uint64_t Count);
|
|
|
|
public:
|
|
InstrProfSummaryBuilder(std::vector<uint32_t> Cutoffs)
|
|
: ProfileSummaryBuilder(std::move(Cutoffs)) {}
|
|
|
|
void addRecord(const InstrProfRecord &);
|
|
std::unique_ptr<ProfileSummary> getSummary();
|
|
};
|
|
|
|
class SampleProfileSummaryBuilder final : public ProfileSummaryBuilder {
|
|
public:
|
|
SampleProfileSummaryBuilder(std::vector<uint32_t> Cutoffs)
|
|
: ProfileSummaryBuilder(std::move(Cutoffs)) {}
|
|
|
|
void addRecord(const sampleprof::FunctionSamples &FS);
|
|
std::unique_ptr<ProfileSummary> getSummary();
|
|
};
|
|
|
|
/// This is called when a count is seen in the profile.
|
|
void ProfileSummaryBuilder::addCount(uint64_t Count) {
|
|
TotalCount += Count;
|
|
if (Count > MaxCount)
|
|
MaxCount = Count;
|
|
NumCounts++;
|
|
CountFrequencies[Count]++;
|
|
}
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif // LLVM_PROFILEDATA_PROFILECOMMON_H
|