diff options
Diffstat (limited to 'lib/Support/Timer.cpp')
| -rw-r--r-- | lib/Support/Timer.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Support/Timer.cpp b/lib/Support/Timer.cpp index 481f6ba508..784b77cf59 100644 --- a/lib/Support/Timer.cpp +++ b/lib/Support/Timer.cpp @@ -61,6 +61,10 @@ raw_ostream *llvm::CreateInfoOutputFile() { 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); |