------- Comment #28 from irar at il dot ibm dot com 2009-07-20 12:03 ------- I've just committed a patch that adds support of cond_expr in reductions in nested cycles (http://gcc.gnu.org/ml/gcc-patches/2009-07/msg01124.html).
cond_expr cannot be vectorized in reduction of inner-most loop, because such reduction changes the order of computation, and that cannot be done for cond_expr. Ira -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31067
