1 //=-- InstrProfWriter.h - Instrumented profiling writer -----------*- C++ -*-=//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains support for writing profiling data for instrumentation
11 // based PGO and coverage.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_PROFILEDATA_INSTRPROF_WRITER_H_
16 #define LLVM_PROFILEDATA_INSTRPROF_WRITER_H_
18 #include "llvm/ADT/ArrayRef.h"
19 #include "llvm/ADT/StringMap.h"
20 #include "llvm/ProfileData/InstrProf.h"
21 #include "llvm/Support/DataTypes.h"
22 #include "llvm/Support/raw_ostream.h"
28 /// Writer for instrumentation based profile data.
29 class InstrProfWriter {
33 std::vector<uint64_t> Counts;
36 StringMap<CounterData> FunctionData;
38 /// Add function counts for the given function. If there are already counts
39 /// for this function and the hash and number of counts match, each counter is
41 std::error_code addFunctionCounts(StringRef FunctionName,
42 uint64_t FunctionHash,
43 ArrayRef<uint64_t> Counters);
44 /// Ensure that all data is written to disk.
45 void write(raw_fd_ostream &OS);
48 } // end namespace llvm
50 #endif // LLVM_PROFILE_INSTRPROF_WRITER_H_