http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56597
--- Comment #4 from jjwang <kruglinski at gmail dot com> 2013-03-12 14:31:27 UTC --- I think one rule can be add to gcc that is: if GCC decide to use the vector instructions that require alignment in condition the users are not realized it, the variable should be aligned automaticly that referenced by the instructions jj
