mirror of
https://github.com/RPCS3/llvm.git
synced 2026-01-31 01:25:19 +01:00
c96f87a892
Add support to the indexed instrprof reader and writer for the format that will be used for value profiling. Patch by Betul Buyukkurt, with minor modifications. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248833 91177308-0d34-0410-b5e6-96231b3b80d8
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
//=-- InstrProfWriter.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_PROFILEDATA_INSTRPROFWRITER_H
|
|
#define LLVM_PROFILEDATA_INSTRPROFWRITER_H
|
|
|
|
#include "llvm/ADT/DenseMap.h"
|
|
#include "llvm/ProfileData/InstrProf.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
#include "llvm/Support/MemoryBuffer.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
|
|
namespace llvm {
|
|
|
|
/// Writer for instrumentation based profile data.
|
|
class InstrProfWriter {
|
|
public:
|
|
typedef SmallDenseMap<uint64_t, InstrProfRecord, 1> ProfilingData;
|
|
|
|
private:
|
|
InstrProfStringTable StringTable;
|
|
StringMap<ProfilingData> FunctionData;
|
|
uint64_t MaxFunctionCount;
|
|
public:
|
|
InstrProfWriter() : MaxFunctionCount(0) {}
|
|
|
|
/// Update string entries in profile data with references to StringTable.
|
|
void updateStringTableReferences(InstrProfRecord &I);
|
|
/// Add function counts for the given function. If there are already counts
|
|
/// for this function and the hash and number of counts match, each counter is
|
|
/// summed.
|
|
std::error_code addRecord(InstrProfRecord &&I);
|
|
/// Write the profile to \c OS
|
|
void write(raw_fd_ostream &OS);
|
|
/// Write the profile, returning the raw data. For testing.
|
|
std::unique_ptr<MemoryBuffer> writeBuffer();
|
|
|
|
private:
|
|
std::pair<uint64_t, uint64_t> writeImpl(raw_ostream &OS);
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|