* config/rx/rx.h (LIBCALL_VALUE): Do not promote complex types.
	* config/rx/rx.c (rx_function_value): Likewise.
	(rx_promote_function_mode): Likewise.
	(gen_safe_add): Place an outsized immediate value inside an UNSPEC
	in order to make it legitimate.
	* config/rx/rx.md (adddi3_internal): If the second operand is a
	MEM make sure that the first operand is the same as the result
	register.
	(addsi3_unspec): Delete.
	(subdi3): Do not accept immediate operands.
	(subdi3_internal): Likewise.

	* gcc.target/rx/builtins.c: Allow -fipa-cp-clone.
	(saturate_add): Delete.
	(exchange): Delete.
	(main): Do not run saturate_add.
	(set_interrupts): Delete.

From-SVN: r169232