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https://github.com/c64scene-ar/llvm-6502.git
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09e5af7d61
Have the InstrProfWriter return a MemoryBuffer instead of a std::string. This fixes the alignment issues the reader would hit, and it's a more appropriate type for this anyway. I've also removed an ugly helper function that's not needed since we're allowing initializer lists now, and updated some error code checks based on MSVC's issues with r229473. This reverts r229483, reapplying r229478. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229602 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
1.8 KiB
C++
57 lines
1.8 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/ArrayRef.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/StringMap.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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#include <vector>
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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, std::vector<uint64_t>, 1> CounterData;
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private:
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StringMap<CounterData> FunctionData;
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uint64_t MaxFunctionCount;
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public:
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InstrProfWriter() : MaxFunctionCount(0) {}
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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 addFunctionCounts(StringRef FunctionName,
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uint64_t FunctionHash,
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ArrayRef<uint64_t> Counters);
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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, returning the raw data. For testing.
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std::unique_ptr<MemoryBuffer> writeBuffer();
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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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