/usr/include/llvm-4.0/llvm/ProfileData/InstrProfWriter.h is in llvm-4.0-dev 1:4.0.1-10.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | //=-- 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 ProfOStream;
class InstrProfRecordWriterTrait;
class InstrProfWriter {
public:
typedef SmallDenseMap<uint64_t, InstrProfRecord, 1> ProfilingData;
enum ProfKind { PF_Unknown = 0, PF_FE, PF_IRLevel };
private:
bool Sparse;
StringMap<ProfilingData> FunctionData;
ProfKind ProfileKind;
// Use raw pointer here for the incomplete type object.
InstrProfRecordWriterTrait *InfoObj;
public:
InstrProfWriter(bool Sparse = false);
~InstrProfWriter();
/// 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. Optionally scale counts by \p Weight.
Error addRecord(InstrProfRecord &&I, uint64_t Weight = 1);
/// Merge existing function counts from the given writer.
Error mergeRecordsFromWriter(InstrProfWriter &&IPW);
/// Write the profile to \c OS
void write(raw_fd_ostream &OS);
/// Write the profile in text format to \c OS
void writeText(raw_fd_ostream &OS);
/// Write \c Record in text format to \c OS
static void writeRecordInText(const InstrProfRecord &Record,
InstrProfSymtab &Symtab, raw_fd_ostream &OS);
/// Write the profile, returning the raw data. For testing.
std::unique_ptr<MemoryBuffer> writeBuffer();
/// Set the ProfileKind. Report error if mixing FE and IR level profiles.
Error setIsIRLevelProfile(bool IsIRLevel) {
if (ProfileKind == PF_Unknown) {
ProfileKind = IsIRLevel ? PF_IRLevel: PF_FE;
return Error::success();
}
return (IsIRLevel == (ProfileKind == PF_IRLevel))
? Error::success()
: make_error<InstrProfError>(
instrprof_error::unsupported_version);
}
// Internal interface for testing purpose only.
void setValueProfDataEndianness(support::endianness Endianness);
void setOutputSparse(bool Sparse);
private:
bool shouldEncodeData(const ProfilingData &PD);
void writeImpl(ProfOStream &OS);
};
} // end namespace llvm
#endif
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