6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
//===- ProfileCommon.h - Common profiling APIs. -----------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains data structures and functions common to both instrumented
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// and sample profiling.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_PROFILEDATA_PROFILECOMMON_H
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#define LLVM_PROFILEDATA_PROFILECOMMON_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/IR/ProfileSummary.h"
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#include "llvm/ProfileData/InstrProf.h"
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#include "llvm/ProfileData/SampleProf.h"
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#include "llvm/Support/Error.h"
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#include <algorithm>
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#include <cstdint>
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#include <functional>
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#include <map>
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#include <memory>
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#include <vector>
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namespace llvm {
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extern cl::opt<bool> UseContextLessSummary;
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extern cl::opt<int> ProfileSummaryCutoffHot;
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extern cl::opt<int> ProfileSummaryCutoffCold;
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extern cl::opt<unsigned> ProfileSummaryHugeWorkingSetSizeThreshold;
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extern cl::opt<unsigned> ProfileSummaryLargeWorkingSetSizeThreshold;
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extern cl::opt<uint64_t> ProfileSummaryHotCount;
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extern cl::opt<uint64_t> ProfileSummaryColdCount;
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namespace sampleprof {
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class FunctionSamples;
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} // end namespace sampleprof
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class ProfileSummaryBuilder {
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private:
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/// We keep track of the number of times a count (block count or samples)
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/// appears in the profile. The map is kept sorted in the descending order of
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/// counts.
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std::map<uint64_t, uint32_t, std::greater<uint64_t>> CountFrequencies;
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std::vector<uint32_t> DetailedSummaryCutoffs;
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protected:
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SummaryEntryVector DetailedSummary;
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uint64_t TotalCount = 0;
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uint64_t MaxCount = 0;
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uint64_t MaxFunctionCount = 0;
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uint32_t NumCounts = 0;
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uint32_t NumFunctions = 0;
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ProfileSummaryBuilder(std::vector<uint32_t> Cutoffs)
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: DetailedSummaryCutoffs(std::move(Cutoffs)) {}
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~ProfileSummaryBuilder() = default;
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inline void addCount(uint64_t Count);
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void computeDetailedSummary();
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public:
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/// A vector of useful cutoff values for detailed summary.
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static const ArrayRef<uint32_t> DefaultCutoffs;
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/// Find the summary entry for a desired percentile of counts.
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static const ProfileSummaryEntry &
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getEntryForPercentile(const SummaryEntryVector &DS, uint64_t Percentile);
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static uint64_t getHotCountThreshold(const SummaryEntryVector &DS);
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static uint64_t getColdCountThreshold(const SummaryEntryVector &DS);
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};
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class InstrProfSummaryBuilder final : public ProfileSummaryBuilder {
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uint64_t MaxInternalBlockCount = 0;
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inline void addEntryCount(uint64_t Count);
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inline void addInternalCount(uint64_t Count);
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public:
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InstrProfSummaryBuilder(std::vector<uint32_t> Cutoffs)
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: ProfileSummaryBuilder(std::move(Cutoffs)) {}
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void addRecord(const InstrProfRecord &);
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std::unique_ptr<ProfileSummary> getSummary();
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};
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class SampleProfileSummaryBuilder final : public ProfileSummaryBuilder {
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public:
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SampleProfileSummaryBuilder(std::vector<uint32_t> Cutoffs)
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: ProfileSummaryBuilder(std::move(Cutoffs)) {}
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void addRecord(const sampleprof::FunctionSamples &FS,
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bool isCallsiteSample = false);
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std::unique_ptr<ProfileSummary>
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computeSummaryForProfiles(const sampleprof::SampleProfileMap &Profiles);
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std::unique_ptr<ProfileSummary> getSummary();
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};
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/// This is called when a count is seen in the profile.
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void ProfileSummaryBuilder::addCount(uint64_t Count) {
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TotalCount += Count;
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if (Count > MaxCount)
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MaxCount = Count;
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NumCounts++;
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CountFrequencies[Count]++;
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}
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} // end namespace llvm
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#endif // LLVM_PROFILEDATA_PROFILECOMMON_H
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