From: shihua@iscas.ac.cn
To: gcc-patches@gcc.gnu.org
Cc: kito.cheng@gmail.com, palmer@dabbelt.com,
jim.wilson.gcc@gmail.com, cmuellner@ventanamicro.com,
lazyparser@gmail.com, shiyulong@iscas.ac.cn, jiawei@iscas.ac.cn,
anku.anand@gmail.com, LiaoShihua <shihua@iscas.ac.cn>
Subject: [PATCH 0/1 V3] RISC-V: Support Zmmul extension
Date: Mon, 11 Jul 2022 15:14:34 +0800 [thread overview]
Message-ID: <20220711071435.1851-1-shihua@iscas.ac.cn> (raw)
From: LiaoShihua <shihua@iscas.ac.cn>
Zmmul extension is Multiply only extension for RISC-V.It implements the multiplication subset of the M extension.
The encodings are identical to those of the corresponding M-extension instructions.
When You both use M extension add Zmmul extension, it will warning "-mdiv cannot use when the ZMMUL extension is present"
LiaoShihua (1):
RISC-V: Support Zmmul extension
gcc/common/config/riscv/riscv-common.cc | 3 +++
gcc/config/riscv/riscv-c.cc | 4 ++--
gcc/config/riscv/riscv-opts.h | 3 +++
gcc/config/riscv/riscv.cc | 4 +++-
gcc/config/riscv/riscv.md | 28 ++++++++++++------------
gcc/config/riscv/riscv.opt | 3 +++
gcc/testsuite/gcc.target/riscv/zmmul-1.c | 20 +++++++++++++++++
gcc/testsuite/gcc.target/riscv/zmmul-2.c | 20 +++++++++++++++++
8 files changed, 68 insertions(+), 17 deletions(-)
create mode 100644 gcc/testsuite/gcc.target/riscv/zmmul-1.c
create mode 100644 gcc/testsuite/gcc.target/riscv/zmmul-2.c
--
2.31.1.windows.1
next reply other threads:[~2022-07-11 7:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-11 7:14 shihua [this message]
2022-07-11 7:14 ` [PATCH 1/1 " shihua
2022-07-11 9:09 ` Kito Cheng
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