http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59679
--- Comment #16 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Uroš Bizjak from comment #15) > (In reply to Uroš Bizjak from comment #13) > > Confirmed as tree-optimization problem on 4.9 branch. > > Actually, a middle-end problem, if at all. With -ftree-ter, expand creates a > couple of unaligned loads to arg0: s/loads/moves/