* config/arm/arm.c (arm_return_in_msb): New function.
	(arm_must_pass_in_stack): New function.
	(TARGET_RETURN_IN_MSB): Define target hook.
	(TARGET_MUST_PASS_IN_STACK): Define target hook.
	(arm_function_value): Pad small aggregate return.
	(arm_pad_arg_upward): New function.
	(arm_pad_reg_upward): New function.
	* config/arm/arm.h (PROMOTE_FUNCTION_MODE): Include complex values.
	(FUNCTION_ARG_PADDING): Define macro.
	(BLOCK_REG_PADDING): Define macro.
	(PAD_VARARGS_DOWN): Correct padding for AAPCS.
	* config/arm/arm-protos.h (arm_pad_arg_upward): Declare function.
	(arm_pad_reg_upward): Declare function.

From-SVN: r98774