[PATCH v2] RISC-V: Add zilsd & zclsd support

[Nelson Chu]

Committed after passing the elf32/64-elf/linux binutils test cases.

Thanks a lot for refactoring this
Nelson

On Fri, May 9, 2025 at 4:27 PM Kito Cheng <kito.cheng@gmail.com> wrote:

> This version is almost same as the version send by dysun, but add one
> more test case and tweak the testcase for march-help.l, also some
> order in riscv_supported_std_z_ext
>
> On Fri, May 9, 2025 at 4:24 PM Kito Cheng <kito.cheng@sifive.com> wrote:
> >
> > From: dysun <sundongya@nucleisys.com>
> >
> > Ref: https://github.com/riscv/riscv-zilsd/blob/main/zilsd.adoc
> >
> > Signed-off-by: dysun <sundongya@nucleisys.com>
> >
> > Co-developed-by: LIU Xu <liuxu@nucleisys.com>
> > Co-developed-by: ZHAO Fujin <zhaofujin@nucleisys.com>
> > ---
> >  bfd/elfxx-riscv.c                          | 20 ++++++++
> >  gas/testsuite/gas/riscv/l-s-macro-zilsd.d  | 53 +++++++++++++++++++++
> >  gas/testsuite/gas/riscv/l-s-macro.d        |  2 +-
> >  gas/testsuite/gas/riscv/l-s-macro.s        |  2 +
> >  gas/testsuite/gas/riscv/march-help.l       |  2 +
> >  gas/testsuite/gas/riscv/zilsd-zclsd-fail.d |  3 ++
> >  gas/testsuite/gas/riscv/zilsd-zclsd-fail.l | 15 ++++++
> >  gas/testsuite/gas/riscv/zilsd-zclsd-fail.s | 15 ++++++
> >  gas/testsuite/gas/riscv/zilsd-zclsd.d      | 29 ++++++++++++
> >  gas/testsuite/gas/riscv/zilsd-zclsd.s      | 20 ++++++++
> >  include/opcode/riscv.h                     |  2 +
> >  opcodes/riscv-opc.c                        | 54 ++++++++++++++++++++++
> >  12 files changed, 216 insertions(+), 1 deletion(-)
> >  create mode 100644 gas/testsuite/gas/riscv/l-s-macro-zilsd.d
> >  create mode 100644 gas/testsuite/gas/riscv/zilsd-zclsd-fail.d
> >  create mode 100644 gas/testsuite/gas/riscv/zilsd-zclsd-fail.l
> >  create mode 100644 gas/testsuite/gas/riscv/zilsd-zclsd-fail.s
> >  create mode 100644 gas/testsuite/gas/riscv/zilsd-zclsd.d
> >  create mode 100644 gas/testsuite/gas/riscv/zilsd-zclsd.s
>
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