[PATCH]: for Score backend

[liqin at sunnorth dot com dot cn]

Hi，
this patch did many changes for Score backend.

Changelog:
        * config/score/predicates.md (const_uimm5, sr0_operand, 
const_simm12,
        const_simm15, const_pow2, const_npow2): Added.
        * config/score/misc.md (insv, extv, extzv, movmemsi, 
        move_lbu_a/b, mov_lhu_a/b etc): Added and fix some bug.
        * config/score/score.c (score_address_cost, score_select_cc_mode): 

        Added.
        Change CONST_OK_FOR_LETTER_P/EXTRA_CONSTRAINT define.
        Update score_rtx_costs for MACRO TARGET_RTX_COSTS.
       Update score_print_operand.
        * config/score/score.h (DATA_ALIGNMENT, SELECT_CC_MODE): Added.
        Adjust register allocate order and update some macro define.
        * config/score/score-mdaux.c (mdx_unaligned_load, 
mdx_unsigned_store,
        mdx_block_move_straight, mdx_block_move_loop_head, 
mdx_block_move_loop_body,
        mdx_block_move_loop_foot, mdx_block_move_loop  mdx_block_move):
        Added.
        (mdx_movsicc, mdp_select_add_imm, mdp_select, 
mds_zero_extract_andi, mdp_limm):
        Updated and fix some bug and typo.
        * config/score/score.md (movqi/hi/si, add/sub/zero/ext): Updated.
        (movsf, movdf, doloop_end): Added.
        * config/score/t-score-elf (MULTILIB_OPTIONS): Change.

Rgds
Liqin

Attachment: score-20061229.patch
Description: Binary data