[PATCH v2 0/3] RISC-V: Add 'Zmmul' extension

[Tsukasa OI]

Hello RISC-V folks,

This patch is PATCH v2 of the Zmmul support patchset.

Tracker on GitHub:
<https://github.com/a4lg/binutils-gdb/wiki/riscv_zmmul>
PATCH v1:
<https://sourceware.org/pipermail/binutils/2022-July/121685.html>


This is based on the ISA Manual, draft-20220707-f518c25:
<https://github.com/riscv/riscv-isa-manual/releases/tag/draft-20220707-f518c25>
<https://github.com/riscv/riscv-isa-manual/commit/f518c259c008f926eba4aba67804f62531b6e94b>

This patchset also contains generic 'M' extension testcases.


[Changes: v1 -> v2]

-   Minor rebase
-   On testcases, use macro symbols with no leading underscores
    (__64_bit__ -> rv64  and  __zmmul__ -> zmmul)
    Thanks to Shihua for feedback.
-   Renamed some testcases


[RFC: Implied extension]

Tsukasa OI's (my) patchset implies 'Zmmul' from 'M'.
LIAO Shihua's patch does not imply 'Zmmul' from 'M'.

c.f. <https://sourceware.org/pipermail/binutils/2022-July/121685.html> (OI)
c.f. <https://sourceware.org/pipermail/binutils/2022-July/121728.html> (LIAO)

My position is derived from existing implications: Zhinx -> Zhinxmin and
Zfh -> Zfhmin.  Big problem is, those implications are implemented by ME.

I have no or a little preference here and I would like
to hear your thoughts.


Thanks,
Tsukasa




Tsukasa OI (3):
  RISC-V: Add 'M' extension testcases
  RISC-V: Add 'Zmmul' extension
  RISC-V: Add 'Zmmul' failure testcases

 bfd/elfxx-riscv.c                             |  6 +++++
 gas/testsuite/gas/riscv/attribute-09.d        |  2 +-
 gas/testsuite/gas/riscv/m-ext-32.d            | 18 +++++++++++++
 gas/testsuite/gas/riscv/m-ext-64.d            | 23 ++++++++++++++++
 .../gas/riscv/m-ext-fail-noarch-64.d          |  4 +++
 .../gas/riscv/m-ext-fail-noarch-64.l          | 14 ++++++++++
 gas/testsuite/gas/riscv/m-ext-fail-xlen-32.d  |  4 +++
 gas/testsuite/gas/riscv/m-ext-fail-xlen-32.l  |  6 +++++
 gas/testsuite/gas/riscv/m-ext-fail-zmmul-32.d |  4 +++
 gas/testsuite/gas/riscv/m-ext-fail-zmmul-32.l |  5 ++++
 gas/testsuite/gas/riscv/m-ext-fail-zmmul-64.d |  4 +++
 gas/testsuite/gas/riscv/m-ext-fail-zmmul-64.l |  9 +++++++
 gas/testsuite/gas/riscv/m-ext.s               | 21 +++++++++++++++
 gas/testsuite/gas/riscv/option-arch-02.d      |  2 +-
 gas/testsuite/gas/riscv/zmmul-32.d            | 14 ++++++++++
 gas/testsuite/gas/riscv/zmmul-64.d            | 15 +++++++++++
 include/opcode/riscv.h                        |  1 +
 opcodes/riscv-opc.c                           | 26 +++++++++----------
 18 files changed, 163 insertions(+), 15 deletions(-)
 create mode 100644 gas/testsuite/gas/riscv/m-ext-32.d
 create mode 100644 gas/testsuite/gas/riscv/m-ext-64.d
 create mode 100644 gas/testsuite/gas/riscv/m-ext-fail-noarch-64.d
 create mode 100644 gas/testsuite/gas/riscv/m-ext-fail-noarch-64.l
 create mode 100644 gas/testsuite/gas/riscv/m-ext-fail-xlen-32.d
 create mode 100644 gas/testsuite/gas/riscv/m-ext-fail-xlen-32.l
 create mode 100644 gas/testsuite/gas/riscv/m-ext-fail-zmmul-32.d
 create mode 100644 gas/testsuite/gas/riscv/m-ext-fail-zmmul-32.l
 create mode 100644 gas/testsuite/gas/riscv/m-ext-fail-zmmul-64.d
 create mode 100644 gas/testsuite/gas/riscv/m-ext-fail-zmmul-64.l
 create mode 100644 gas/testsuite/gas/riscv/m-ext.s
 create mode 100644 gas/testsuite/gas/riscv/zmmul-32.d
 create mode 100644 gas/testsuite/gas/riscv/zmmul-64.d


base-commit: dd4c046506cd4da46b439a2b4f8b6d933ecbb961
-- 
2.34.1