diff options
| author | Jan Voung <jvoung@chromium.org> | 2013-02-20 13:00:09 -0800 |
|---|---|---|
| committer | Jan Voung <jvoung@chromium.org> | 2013-02-20 13:00:09 -0800 |
| commit | 064cb04294ad612d84a99ac111b06b4544e6899c (patch) | |
| tree | d5f8d2b162477632a283bff7fde8b578b5c69254 | |
| parent | 51a313f11b9f37f93e74c88d7e2adb45d6a2358d (diff) | |
Explicitly set a buffer size for sandboxed llc's objfile.
Otherwise it is "buffered", but the buffer size is 0.
Unbuffered writes add 1 second of sys time to translation
time of gcc. With a large buffer, sys time is again near 0.
BUG= http://code.google.com/p/nativeclient/issues/detail?id=3315
Review URL: https://codereview.chromium.org/12317019
| -rw-r--r-- | tools/llc/llc.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/llc/llc.cpp b/tools/llc/llc.cpp index 1d7295c303..bdc14fc554 100644 --- a/tools/llc/llc.cpp +++ b/tools/llc/llc.cpp @@ -504,6 +504,7 @@ static int compileModule(char **argv, LLVMContext &Context) { #if defined __native_client__ && defined(NACL_SRPC) { raw_fd_ostream ROS(GetObjectFileFD(), true); + ROS.SetBufferSize(1 << 20); formatted_raw_ostream FOS(ROS); // Ask the target to add backend passes as necessary. if (Target.addPassesToEmitFile(*PM, FOS, FileType, NoVerify)) { |