static void mergeInstrProfile(const cl::list<std::string> &Inputs,
StringRef OutputFilename) {
if (OutputFilename.compare("-") == 0)
exitWithError("Cannot write indexed profdata format to stdout.");
std::error_code EC;
raw_fd_ostream Output(OutputFilename.data(), EC, sys::fs::F_None);
if (EC)
exitWithError(EC.message(), OutputFilename);
InstrProfWriter Writer;
for (const auto &Filename : Inputs) {
auto ReaderOrErr = InstrProfReader::create(Filename);
if (std::error_code ec = ReaderOrErr.getError())
exitWithError(ec.message(), Filename);
auto Reader = std::move(ReaderOrErr.get());
for (auto &I : *Reader)
if (std::error_code EC = Writer.addRecord(std::move(I)))
errs() << Filename << ": " << I.Name << ": " << EC.message() << "\n";
if (Reader->hasError())
exitWithError(Reader->getError().message(), Filename);
}
Writer.write(Output);
}
int merge_main(int argc, const char *argv[]) {
cl::list<std::string> Inputs(cl::Positional, cl::Required, cl::OneOrMore,
cl::desc("<filenames...>"));
cl::opt<std::string> OutputFilename("output", cl::value_desc("output"),
cl::init("-"), cl::Required,
cl::desc("Output file"));
cl::alias OutputFilenameA("o", cl::desc("Alias for --output"),
cl::aliasopt(OutputFilename));
cl::ParseCommandLineOptions(argc, argv, "LLVM profile data merger\n");
if (OutputFilename.compare("-") == 0)
exitWithError("Cannot write indexed profdata format to stdout.");
std::string ErrorInfo;
raw_fd_ostream Output(OutputFilename.data(), ErrorInfo, sys::fs::F_None);
if (!ErrorInfo.empty())
exitWithError(ErrorInfo, OutputFilename);
InstrProfWriter Writer;
for (const auto &Filename : Inputs) {
std::unique_ptr<InstrProfReader> Reader;
if (std::error_code ec = InstrProfReader::create(Filename, Reader))
exitWithError(ec.message(), Filename);
for (const auto &I : *Reader)
if (std::error_code EC =
Writer.addFunctionCounts(I.Name, I.Hash, I.Counts))
errs() << Filename << ": " << I.Name << ": " << EC.message() << "\n";
if (Reader->hasError())
exitWithError(Reader->getError().message(), Filename);
}
Writer.write(Output);
return 0;
}