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55f78334c1
The new option is similar to the SampleProfile dump option. - dump raw/indexed format into text profile format - merge the profile and output into text profile format. Note that Value Profiling data text format is not yet designed. That functionality will be added later. Differential Revision: http://reviews.llvm.org/D14894 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253913 91177308-0d34-0410-b5e6-96231b3b80d8
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
//=-- InstrProfWriter.h - Instrumented profiling writer -----------*- C++ -*-=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains support for writing profiling data for instrumentation
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// based PGO and coverage.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_PROFILEDATA_INSTRPROFWRITER_H
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#define LLVM_PROFILEDATA_INSTRPROFWRITER_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ProfileData/InstrProf.h"
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#include "llvm/Support/DataTypes.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/raw_ostream.h"
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namespace llvm {
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/// Writer for instrumentation based profile data.
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class InstrProfWriter {
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public:
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typedef SmallDenseMap<uint64_t, InstrProfRecord, 1> ProfilingData;
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private:
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InstrProfStringTable StringTable;
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StringMap<ProfilingData> FunctionData;
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uint64_t MaxFunctionCount;
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public:
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InstrProfWriter() : MaxFunctionCount(0) {}
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/// Update string entries in profile data with references to StringTable.
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void updateStringTableReferences(InstrProfRecord &I);
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/// Add function counts for the given function. If there are already counts
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/// for this function and the hash and number of counts match, each counter is
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/// summed.
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std::error_code addRecord(InstrProfRecord &&I);
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/// Write the profile to \c OS
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void write(raw_fd_ostream &OS);
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/// Write the profile in text format to \c OS
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void writeText(raw_fd_ostream &OS);
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/// Write \c Record in text format to \c OS
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static void writeRecordInText(const InstrProfRecord &Record,
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raw_fd_ostream &OS);
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/// Write the profile, returning the raw data. For testing.
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std::unique_ptr<MemoryBuffer> writeBuffer();
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// Internal interface for testing purpose only.
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void setValueProfDataEndianness(support::endianness Endianness);
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private:
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std::pair<uint64_t, uint64_t> writeImpl(raw_ostream &OS);
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};
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} // end namespace llvm
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#endif
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