http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56102
--- Comment #2 from bin.cheng <amker.cheng at gmail dot com> 2013-01-25 07:25:34 UTC --- Created attachment 29270 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29270 correct test case The previous test case is not appropriate, because gcc won't split even with correct thumb1_rtx_cost. Here attaches the right test case.