* genautomata.c (<struct state>, num_out_arcs, presence_signature):

	New members.
	(remove_arc, add_arc): Update num_out_arcs member.
	(set_out_arc_insns_equiv_num): Returns nothing instead of number
	of out arcs.
	(cache_presence): New function.
	(compare_states_for_equiv): New function.
	(state_is_differed): Don't take number of outargs, adjust callers.
	Use new invariant for speeding up.
	(init_equiv_class): Create initial classes based on sorted
	input.
	(partition_equiv_class): Don't track out_arcs_num.
	(evaluate_equiv_classes): Call cache_presence on all states and
	sort them.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@112252 138bc75d-0d04-0410-961f-82ee72b054a4

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