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//===-- DataAccessPerfReader.h - perfscript reader for data access profiles -----------------------*- 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVM_PROFGEN_DATAACCESSPERFREADER_H
#define LLVM_TOOLS_LLVM_PROFGEN_DATAACCESSPERFREADER_H
#include "PerfReader.h"
#include "ProfiledBinary.h"
#include "llvm/ADT/MapVector.h"
namespace llvm {
class DataAccessPerfReader : public PerfScriptReader {
public:
DataAccessPerfReader(ProfiledBinary *Binary, StringRef PerfTrace,
std::optional<int32_t> PID)
: PerfScriptReader(Binary, PerfTrace, PID), PerfTraceFilename(PerfTrace) {
}
// Entry of the reader to parse multiple perf traces
void parsePerfTraces() override;
auto getAddressToCount() const {
return AddressToCount.getArrayRef();
}
void print() const {
auto addrCountArray = AddressToCount.getArrayRef();
std::vector<std::pair<uint64_t, uint64_t>> SortedEntries(
addrCountArray.begin(), addrCountArray.end());
llvm::sort(SortedEntries, [](const auto &A, const auto &B) {
return A.second > B.second;
});
for (const auto &Entry : SortedEntries) {
if (Entry.second == 0)
continue; // Skip entries with zero count
dbgs() << "Address: " << format("0x%llx", Entry.first)
<< ", Count: " << Entry.second << "\n";
}
}
private:
void parsePerfTrace(StringRef PerfTrace);
MapVector<uint64_t, uint64_t> AddressToCount;
StringRef PerfTraceFilename;
};
} // namespace llvm
#endif // LLVM_TOOLS_LLVM_PROFGEN_DATAACCESSPERFREADER_H
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