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//=-- ProfileDataWriter.h - Instrumented profiling writer ---------*- 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 support for writing profiling data for instrumentation
// based PGO and coverage.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_PROFILE_PROFILEDATA_WRITER_H__
#define LLVM_PROFILE_PROFILEDATA_WRITER_H__
#include "llvm/ADT/StringMap.h"
#include "llvm/Profile/ProfileData.h"
#include "llvm/Support/DataTypes.h"
#include "llvm/Support/raw_ostream.h"
#include <vector>
namespace llvm {
/// Writer for instrumentation based profile data
class ProfileDataWriter {
StringMap<size_t> FunctionOffsets;
std::vector<uint64_t> FunctionData;
uint32_t DataStart;
uint64_t MaxFunctionCount;
void write32(raw_ostream &OS, uint32_t Value);
void write64(raw_ostream &OS, uint64_t Value);
public:
ProfileDataWriter()
: DataStart(PROFILEDATA_HEADER_SIZE), MaxFunctionCount(0) {}
void addFunctionCounts(StringRef FuncName, uint64_t FunctionHash,
uint64_t NumCounters, const uint64_t *Counters);
void write(raw_ostream &OS);
};
} // end namespace llvm
#endif // LLVM_PROFILE_PROFILEDATA_WRITER_H__
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