* alias.c (OUTGOING_REGNO): Don't define the default.
	* builtins.c (OUTGOING_REGNO): Likewise.
	(INCOMING_REGNO): Likewise.
	(apply_args_register_offset): Always use OUTGOING_REGNO.
	* combine.c (OUTGOING_REGNO): Likewise.
	* sibcall.c (OUTGOING_REGNO): Likewise.
	* defaults.h (INCOMING_REGNO): Provide the default.
	(OUTGOING_REGNO): Likewise.

From-SVN: r78203