rx.h (HAVE_PRE_DECREMENT): Fix typo.

rx.h (HAVE_PRE_DECREMENT): Fix typo.

	* config/rx/rx.h (HAVE_PRE_DECREMENT): Fix typo.
	* config/rx/rx.c (CC_FLAG_FP): Fix comment.
	(rx_is_legitimate_address): Add pre-decrement and post-increment
	addressing in HImode and QImode.  Fix test for out of range
	REG+INT addressing.
	(rx_legitimate_constant_p): Rename ro rx_is_legitimate_constant.
	(rx_align_for_label): Test label before extracting its usage
	count.
	(rx_adjust_insn_lengths): Fix selection of insn codes.
	(TARGET_LEGITIMNATE_CONSTANT_P): Use renamed function.

Co-Authored-By: Nick Clifton <nickc@redhat.com>
From-SVN: r173695