i386.h: Clarify CCNOmode description in comment.

i386.h: Clarify CCNOmode description in comment.

	* config/i386/i386.h: Clarify CCNOmode description in comment.
	(EXTRA_CC_MODES): Remove CCRCmode.
	* config/i386/i386.c (ix86_comparison_operator): Remove CCRCmode.
	(put_condition_code, ix86_match_ccmode): Likewise.
	(ix86_cc_mode): Likewise.  Fix comment.
	(ix86_expand_strlensi_unroll_1): *rc patterns are gone.
	* config/i386/i386.md: Add unspec 12 description.
	(adddi3 split): Use unspec 12 instead of CCRCmode.
	(addsi3_carry_rc): Remove.
	(addsi3_cc, addqi3_cc): New patterns.
	(addsi_3): Swap operands, match CCZmode.
	(addsi_4): Rewritten.
	(addsi_5): Renamed from addsi_6.
	(addsi_6): Removed.
	(addhi_3): Swap operands, match CCZmode.
	(addhi_4): Rewritten.
	(addhi_5): Renamed from addhi_6.
	(addhi_6): Removed.
	(addqi_3): Swap operands, match CCZmode.
	(addqi_4): Rewritten.
	(addqi_5): Renamed from addqi_6.  Use =q constraint for clobber.
	(subsi3_carry_rc): Removed.
	(iorqi_3): Use =q constraint for clobber.
	(xorqi_cc_2): Likewise.
	(negdi2_1 split): Don't use CCRCmode, use ltu instead of gtu.
	(x86_movsicc_0_m1_rc): Removed.
	(cmp?i peepholes): Remove neg.  Use CCGCmode instead of CCRCmode.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r37166