ira-int.h (ira_zero_hard_reg_set, [...]): Delete.

ira-int.h (ira_zero_hard_reg_set, [...]): Delete.

gcc/
	* ira-int.h (ira_zero_hard_reg_set, ira_one_hard_reg_set): Delete.
	* ira-color.c (setup_allocno_left_conflicts_num): Use
	hard_reg_set_equal_p instead of a comparison with
	ira_zero_hard_reg_set.
	* ira.c (setup_reg_subclasses): Likewise.
	(setup_cover_and_important_classes): Likewise.
	(setup_class_translate): Likewise.
	(setup_reg_class_intersect_union): Likewise.
	(ira_zero_hard_reg_set, ira_one_hard_reg_set): Delete.
	(ira_init_once): Don't initialize them.

From-SVN: r140054