| //=-- 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/ArrayRef.h" |
| #include "llvm/ADT/DenseMap.h" |
| #include "llvm/ADT/StringMap.h" |
| #include "llvm/ProfileData/InstrProf.h" |
| #include "llvm/Support/DataTypes.h" |
| #include "llvm/Support/raw_ostream.h" |
| #include <vector> |
| |
| namespace llvm { |
| |
| /// Writer for instrumentation based profile data. |
| class InstrProfWriter { |
| public: |
| typedef SmallDenseMap<uint64_t, std::vector<uint64_t>, 1> CounterData; |
| private: |
| StringMap<CounterData> FunctionData; |
| uint64_t MaxFunctionCount; |
| public: |
| InstrProfWriter() : MaxFunctionCount(0) {} |
| |
| /// 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 addFunctionCounts(StringRef FunctionName, |
| uint64_t FunctionHash, |
| ArrayRef<uint64_t> Counters); |
| /// Ensure that all data is written to disk. |
| void write(raw_fd_ostream &OS); |
| }; |
| |
| } // end namespace llvm |
| |
| #endif |