gas/arm: clean up register name parsing.

[Nick Clifton]

Hi Richard,

> <date>  Richard Earnshaw  (rearnsha@arm.com)
> 
>         * tc-arm.c (struct reg_entry): Move before prototypes.
>         (int_register, cp_register, fp_register): Delete.
>         (reg_table): Delete.  Replaced with ...
>         (rn_table, cp_table, cn_table, fn_table, mav_mvf_table)
> 	(mav_mvd_table, mav_mvfx_table, mav_mvdx_table, mav_mvax_table)
> 	(mav_dspsc_table): ... one table per register set.
>         (arm_reg_hsh): Delete.
>         (struct reg_map): New structure.
>         (all_reg_maps): New array.
>         (enum arm_reg_type): New enums.
>         (build_reg_hsh): New function.
>         (insert_reg_alias): Use hash table passed by caller.  Adjust all
>         callers.
>         (create_register_alias): New function, split out from ...
>         (md_assemble): ... here.
>         (md_begin): Build new register hash tables.
>         (arm_reg_parse): New argument for the hash table to search.  
>         Adjust all callers.
>         (arm_reg_parse_any): New function.
>         (co_proc_number): Look up the processor number in the processor 
>         hash table.
> 	(cirrus_regtype): Delete.
> 	(cirrus_register, cirrus_mvf_register, cirrus_mvd_register)
> 	(cirrus_mvfx_register, cirrus_mvdx_register, cirrus_mvax_register)
> 	(ARM_EXT_MAVERICKsc_register): Delete.
> 	(do_c_binops_1, do_c_binops_2, do_c_binops_3): Delete.
> 	(do_c_binops_1[a-o], do_c_binops_2[a-c], do_c_binops_3[a-d]): New
> 	functions.
> 	(do_c_triple_4, do_c_triple_5): Delete.
> 	(do_c_triple_4[ab], do_c_triple_5[a-h]): New functions.
> 	(do_c_quad_6): Delete.
> 	(do_c_quad_6[ab]): New functions.
> 	(do_c_binops, do_c_triple, do_c_quad, do_c_shift, do_c_ldst): Rework
> 	arguments to use new register parsing methods.
> 	(cirrus_reg_required_here): Likewise.
> 	(insns): Reclassify cirrus maverick worker functions.
> 	(cirrus_valid_reg): Delete.

Approved - please apply.

Thanks!

Cheers
        Nick