2009-04-16  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/39762
	* ira-int.h (ira_register_move_cost, ira_may_move_in_cost,
	ira_may_move_out_cost): Add comments about way of their usage.
	(ira_get_register_move_cost, ira_get_may_move_cost): New
	functions.
	
	* ira-conflicts.c (process_regs_for_copy): Use function
	ira_get_register_move_cost instead of global
	ira_register_move_cost.

	* ira-color.c (update_copy_costs, calculate_allocno_spill_cost,
	color_pass, move_spill_restore, update_curr_costs): Ditto.

	* ira-lives.c (process_single_reg_class_operands): Ditto.

	* ira-emit.c (emit_move_list): Ditto.

	* ira-costs.c (copy_cost): Don't call ira_init_register_move_cost.
	(record_reg_classes): Ditto.  Use functions
	ira_get_register_move_cost and ira_get_may_move_cost instead of
	global vars ira_register_move_cost, ira_may_move_out_cost and
	ira_may_move_in_cost.
	(record_address_regs): Don't call ira_init_register_move_cost.
	Use function ira_get_may_move_cost instead of global
	ira_may_move_in_cost.
	(process_bb_node_for_hard_reg_moves): Use function
	ira_get_register_move_cost instead of global
	ira_register_move_cost.
	(ira_costs): Don't call ira_init_register_move_cost.

From-SVN: r146198