regmove.c (perhaps_ends_bb_p): Use can_throw_internal to reduce false positives.

regmove.c (perhaps_ends_bb_p): Use can_throw_internal to reduce false positives.

        * regmove.c (perhaps_ends_bb_p): Use can_throw_internal to
        reduce false positives.
        (regmove_optimize): Disable if flag_non_call_exceptions.

From-SVN: r40917