* config/tc-mips.c (mips_prefer_vec_regno, mips_parse_register):
New functions, split out from...
(reg_lookup): ...here. Remove itbl support.
(reglist_lookup): Delete.
(mips_operand_token_type): New enum.
(mips_operand_token): New structure.
(mips_operand_tokens): New variable.
(mips_add_token, mips_parse_base_start, mips_parse_argument_token)
(mips_parse_arguments): New functions.
(md_begin): Initialize mips_operand_tokens.
(mips_arg_info): Add a token field. Remove optional_reg field.
(match_char, match_expression): New functions.
(match_const_int): Use match_expression. Remove "s" argument
and return a boolean result. Remove O_register handling.
(match_regno, match_reg, match_reg_range): New functions.
(match_int_operand, match_mapped_int_operand, match_msb_operand)
(match_reg_operand, match_reg_pair_operand, match_perf_reg_operand)
(match_addiusp_operand, match_clo_clz_dest_operand)
(match_lwm_swm_list_operand, match_entry_exit_operand)
(match_save_restore_list_operand, match_mdmx_imm_reg_operand)
(match_tied_reg_operand): Remove "s" argument and return a boolean
result. Match tokens rather than text. Update calls to
match_const_int. Rely on match_regno to call check_regno.
(match_pcrel_operand, match_pc_operand): Replace "s" argument with
"arg" argument. Return a boolean result.
(parse_float_constant): Replace with...
(match_float_constant): ...this new function.
(match_operand): Remove "s" argument and return a boolean result.
Update calls to subfunctions.
(mips_ip, mips16_ip): Call mips_parse_arguments. Use match routines
rather than string-parsing routines. Update handling of optional
registers for token scheme.
gas/testsuite/
* gas/mips/vr5400-ill.s, gas/mips/vr5400-ill.l: Add some more cases.
* gas/mips/micromips-ill.s, gas/mips/micromips-ill.l: New test.
* gas/mips/mips.exp: Run it.
a92713e60e