ref: 3ac73173a4c7e5be0a9846bc323699e7365c60ee
parent: 23aa13d92c6a36e7ef5f2f7b9d375edc9e44f423
parent: 64f3d91579278a504e5c085a3887e3f33b749627
author: Yaowu Xu <yaowu@google.com>
date: Tue Dec 14 08:32:04 EST 2010
Merge "fix a bug that "optimize" flag is not set for sub-threads"