if (OutputFilename == "-")
return new raw_fd_ostream(1, false); // stdout.
+ // Append mode is used because the info output file is opened and closed
+ // each time -stats or -time-passes wants to print output to it. To
+ // compensate for this, the test-suite Makefiles have code to delete the
+ // info output file before running commands which write to it.
std::string Error;
raw_ostream *Result = new raw_fd_ostream(OutputFilename.c_str(),
Error, raw_fd_ostream::F_Append);