http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44025 --- Comment #5 from amker.cheng <amker.cheng at gmail dot com> 2011-11-02 06:05:23 UTC --- Created attachment 25687 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25687 reduced test case which can be handled by cse pass