[patch, score] Remove score3 from score backend, delete unusual insn generate

[Liqin Chen <liqin dot gcc at gmail dot com>]

Remove score3 ISA from score backend,  update new macro define.
Because some new macro could not work,  this time we have not merge
them in.

--liqin

 2011-03-11 13:59:07 +0800 (Fri, 11 Mar 2011)

	* config.gcc (score-*-elf): add extra_parts .., update tmake_file, extra_objs.
	* config/score/score3.c: Delete.
	* config/score/score3.h: Delete.
	* config/score/mul-div.S: Delete.
	* config/score/sfp-machine.h: Add new file.
	* config/score/constraints.md: Add new file.
	* config/score/t-score-softfp: Add new file.
	* config/score/t-score-elf: Remove score3.o and multilib generate.
	* config/score/score7.c (score7_const_ok_for_letter_p): Delete.
	(score7_extra_constraint): Delete.
	(score7_option_override): Remove unused code which mode to constraint.md.
	* config/score/score.c: Remove score3 and score5 define and code.
	* config/score/score.h: Remove score3 and score5 define and code.
	* config/score/score.md: Remove score3 template and unusal insn generate.
	* config/score/score.opt: Remove score3 and score5 options.

Attachment: score.txt
Description: Text document