RISCV: Support Zilsd and Zcmlsd extensions.

[孙东亚]

This patch adds support for the Zilsd and Zcmlsd extension, Which is documented at   https://github.com/riscv/riscv-zilsd/releases/tag/v0.9.0 .
Currently, the patch has been merged into https://github.com/nxp-auto-tools/binutils_zilsd by Edmar Wienskoski <edmar.wienskoski@NXP.com>. 





bfd/ChangeLog:

 

        * bfd/elfxx-riscv.c (riscv_parse_check_conflicts):  “zcmlsd” conflict with the “c+f'/ zcf”extension.

        (riscv_multi_subset_supports):Handle zilsd and zcmlsd.

        (riscv_multi_subset_supports_ext): Handle zilsd and zcmlsd.

 

gas/ChangeLog:

 

        *gas/ config/tc-riscv.c (validate_riscv_insn):Add new operand Gd,Gt for zilsd.ld, zilsd.sd.
        (riscv_ip): Ditto.
 

include/ChangeLog:

 

        * include/opcode/riscv.h (enum riscv_insn_class):Add INSN_CLASS_ZILSD and INSN_CLASS_ZCMLSD.

 

opcodes/ChangeLog:

 

        * opcode/riscv-dis.c (print_insn_args): Print zilsd instruction information.

        * opecode/riscv-opc.c: Add zilsd and zcmlsd instructions.



---

 bfd/elfxx-riscv.c      | 23 +++++++++++++++++++++--
 gas/config/tc-riscv.c  | 35 +++++++++++++++++++++++++++++++++++
 include/opcode/riscv.h |  2 ++
 opcodes/riscv-dis.c    | 18 ++++++++++++++++++
 opcodes/riscv-opc.c    | 12 ++++++++++++
 5 files changed, 88 insertions(+), 2 deletions(-)


Co-developed-by: SUN Dongya <sundongya@nucleisys.com>Co-developed-by: LIU Xu <liuxu@nucleisys.com>Co-developed-by: ZHAO Fujin <zhaofujin@nucleisys.com>Co-developed-by: Edmar Wienskoski <edmar.wienskoski@NXP.com>
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