* config/arc/constraints.md (Rcq): Simplify register number test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204900 138bc75d-0d04-0410-961f-82ee72b054a4
        * config/arc/arc.c (arc_predicate_delay_insns): New function.
        (pass_data_arc_predicate_delay_insns): New pass_data instance.
        (pass_arc_predicate_delay_insns): New subclass of rtl_opt_class.
        (make_pass_arc_predicate_delay_insns): New function.
        (arc_init): Register pass_arc_predicate_delay_insns if
        flag_delayed_branch is active.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204901 138bc75d-0d04-0410-961f-82ee72b054a4