* config/s390/s390-protos.h (legitimize_la_operand,
	s390_secondary_input_reload_class, s390_plus_operand,
	s390_expand_plus_operand): Add prototypes.

	config/s390/s390.c (s390_secondary_input_reload_class,
	s390_plus_operand, s390_expand_plus_operand): New functions.

	(struct s390_address): New member 'pointer'.
	(s390_decompose_address): Compute it.
	(legitimate_la_operand_p): Use it.
	(legitimize_la_operand): New function.
	(movti, movdi, movdf splitters): Call it.

	config/s390/s390.h (SECONDARY_INPUT_RELOAD_CLASS): Define.
	(PREDICATE_CODES): Add s390_plus_operand.

	config/s390/s390.md (adddi3_inv_64, addaddr_ccclobber): Delete.
	(la_ccclobber): Allow GENERAL_REGS as output operand.

	(reload_load_address, *reload_load_address_reg_0, *la, *do_la_reg_0,
	*reload_la_64, *reload_la_31 and splitters): Delete, replace by ...
	(*la_64, *la_31, reload_indi, reload_insi): ... these.

From-SVN: r49476