From: Richard Henderson <richard.henderson@linaro.org>
To: Jiajie Chen <c@jia.je>, qemu-devel@nongnu.org
Cc: gaosong@loongson.cn, git@xen0n.name
Subject: Re: [PATCH 4/5] target/loongarch: Add estimated reciprocal instructions
Date: Mon, 23 Oct 2023 16:02:07 -0700 [thread overview]
Message-ID: <599d17bf-65c5-4728-bcc3-aa8b058e8af5@linaro.org> (raw)
In-Reply-To: <20231023153029.269211-6-c@jia.je>
On 10/23/23 08:29, Jiajie Chen wrote:
> Add the following new instructions in LoongArch v1.1:
>
> - frecipe.s
> - frecipe.d
> - frsqrte.s
> - frsqrte.d
> - vfrecipe.s
> - vfrecipe.d
> - vfrsqrte.s
> - vfrsqrte.d
> - xvfrecipe.s
> - xvfrecipe.d
> - xvfrsqrte.s
> - xvfrsqrte.d
>
> They are guarded by CPUCFG2.FRECIPE. Altought the instructions allow
> implementation to improve performance by reducing precision, we use the
> existing softfloat implementation.
>
> Signed-off-by: Jiajie Chen <c@jia.je>
> ---
> target/loongarch/cpu.h | 1 +
> target/loongarch/disas.c | 12 ++++++++++++
> target/loongarch/insn_trans/trans_farith.c.inc | 4 ++++
> target/loongarch/insn_trans/trans_vec.c.inc | 8 ++++++++
> target/loongarch/insns.decode | 12 ++++++++++++
> target/loongarch/translate.h | 6 ++++++
> 6 files changed, 43 insertions(+)
Acked-by: Richard Henderson <richard.henderson@linaro.org>
r~
next prev parent reply other threads:[~2023-10-23 23:02 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-23 15:29 [PATCH 0/5] Add LoongArch v1.1 instructions Jiajie Chen
2023-10-23 15:29 ` [PATCH 1/5] include/exec/memop.h: Add MO_TESB Jiajie Chen
2023-10-23 15:49 ` David Hildenbrand
2023-10-23 15:52 ` Jiajie Chen
2023-10-23 15:29 ` [PATCH 2/5] target/loongarch: Add am{swap/add}[_db].{b/h} Jiajie Chen
2023-10-23 22:50 ` Richard Henderson
2023-10-23 15:29 ` [PATCH 3/5] target/loongarch: Add amcas[_db].{b/h/w/d} Jiajie Chen
2023-10-23 15:35 ` Jiajie Chen
2023-10-23 23:00 ` Richard Henderson
2023-10-23 22:59 ` Richard Henderson
2023-10-23 15:29 ` [PATCH 4/5] target/loongarch: Add estimated reciprocal instructions Jiajie Chen
2023-10-23 23:02 ` Richard Henderson [this message]
2023-10-23 15:29 ` [PATCH 5/5] target/loongarch: Add llacq/screl instructions Jiajie Chen
2023-10-23 23:19 ` Richard Henderson
2023-10-23 23:26 ` [PATCH 0/5] Add LoongArch v1.1 instructions Richard Henderson
2023-10-24 6:10 ` Jiajie Chen
2023-10-25 17:13 ` Jiajie Chen
2023-10-25 19:04 ` Richard Henderson
2023-10-26 1:38 ` Jiajie Chen
2023-10-26 6:54 ` gaosong
2023-10-28 13:09 ` Jiajie Chen
2023-10-30 8:23 ` gaosong
2023-10-30 11:54 ` Jiajie Chen
2023-10-31 9:11 ` gaosong
2023-10-31 9:13 ` Jiajie Chen
2023-10-31 11:06 ` gaosong
2023-10-31 11:10 ` Jiajie Chen
2023-10-31 12:12 ` gaosong
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