bfin.h (enum reg_class, [...]): Add D0REGS through D7REGS.

bfin.h (enum reg_class, [...]): Add D0REGS through D7REGS.

	* config/bfin/bfin.h (enum reg_class, REG_CLASS_NAMES,
	REG_CLASS_CONTENTS): Add D0REGS through D7REGS.
	(CONSTRAINT_LEN): Add entry for 'q'.
	(REG_CLASS_FROM_CONSTRAINT): Renamed from REG_CLASS_FROM_LETTER.
	Add 'q' constraints.
	(REGNO_REG_CLASS): For R0 through R7, return corresponding regclass.
	(CLASS_LIKELY_SPILLED_P): True for R0, R1 and R2.

	* config/bfin/bfin.md (add_with_carry): New pattern.
	(s_or_u, su_optab, su_modifier): New code macros/attrs.
	(<su_optab>hisi_ll, <su_optab>hisi_lh, <su_optab>hisi_hl,
	<su_optab>hisi_hh): Renamed from mulhisi_xx patterns; macroized to
	support unsigned multiplies too.  Removed incorrect commutativity from
	operand 1 constraint where appropriate.
	(usmulhisi_ull, usmulhisi_ulh, usmulhisi_uhl, usmulhisi_uhh): New
	patterns.
	(<su_optab>hisi_ll_lh, <su_optab>hisi_ll_hl, <su_optab>hisi_ll_hh,
	<su_optab>hisi_lh_hl, <su_optab>hisi_lh_hh, <su_optab>hisi_hl_hh):
	New patterns.
	(usmulhisi_ll_lul, usmulhisi_ll_luh, usmulhisi_ll_hul,
	usmulhisi_ll_huh, usmulhisi_lh_lul, usmulhisi_lh_luh, usmulhisi_lh_hul,
	usmulhisi_lh_huh, usmulhisi_hl_lul, usmulhisi_hl_luh, usmulhisi_hl_hul,
	usmulhisi_hl_huh, usmulhisi_hh_lul, usmulhisi_hh_luh, usmulhisi_hh_hul,
	usmulhisi_hh_huh): New patterns.

From-SVN: r122373