* genattrtab.c (strcmp_check, DEF_ATTR_STRING): New macros.
	(length_str, delay_type_str, delay_1_0_str, num_delay_slots_str):
	New variables.
	(main): Initialize them.
	(find_attr): Canonicalize the attribute name string.
	(attr_rtx_1, copy_boolean, expand_delays, gen_unit): Always canonicalize
	string arguments.
	(attr_printf, attr_eq): Use DEF_ATTR_STRING.
	(check_attr_test, check_attr_value, make_length_attrs,
	write_length_unit_log, simplify_by_exploding, gen_attr,
	write_test_expr, write_attr_value, write_eligible_delay,
	write_complex_function, make_internal_attr,
	write_const_num_delay_slots): Changed due to change of type of
	find_attr.
	(fill_attr, evaluate_eq_attr, simplify_and_tree,
	attr_rtx_cost, simplify_by_exploding, walk_attr_value): Use
	strcmp_check.

From-SVN: r73869