Hello jiang,
You're request for a code review is a bit premature.
You suggested adding uninitialized variable warnings to tcc about a week ago, and managed to solicit some useful feedback. The general consensus seemed to be opposed to adding these warnings. Your next step in this whole process is to respond to those emails thanking everybody for offering their thoughts and insights, and addressing the concerns raised. It is quite unlikely that anybody will respond to your request for a code review until the preliminary discussion has reached its natural conclusion.
David