Re: [RFC v2 49/76] target/riscv: rvv-0.9: quad-widening integer multiply

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Re: [RFC v2 49/76] target/riscv: rvv-0.9: quad-widening integer multiply

From:	Richard Henderson
Subject:	Re: [RFC v2 49/76] target/riscv: rvv-0.9: quad-widening integer multiply-add instructions
Date:	Thu, 30 Jul 2020 14:19:26 -0700
User-agent:	Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

On 7/22/20 2:16 AM, frank.chang@sifive.com wrote:
> From: Frank Chang <frank.chang@sifive.com>
> 
> Add the following instructions:
> 
> * vqmaccu.vv
> * vqmaccu.vx
> * vqmacc.vv
> * vqmacc.vx
> * vqmaccsu.vv
> * vqmaccsu.vx
> * vqmaccus.vx
> 
> Signed-off-by: Frank Chang <frank.chang@sifive.com>
> ---
>  target/riscv/helper.h                   |  15 ++++
>  target/riscv/insn32.decode              |   7 ++
>  target/riscv/insn_trans/trans_rvv.inc.c | 101 ++++++++++++++++++++++++
>  target/riscv/vector_helper.c            |  40 ++++++++++
>  4 files changed, 163 insertions(+)

Looks ok.  I presume you'll add the Zvqmac test now that's in the draft?


r~

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[RFC v2 44/76] target/riscv: rvv-0.9: single-width averaging add and subtract instructions, (continued)
- [RFC v2 44/76] target/riscv: rvv-0.9: single-width averaging add and subtract instructions, frank . chang, 2020/07/22
  - Re: [RFC v2 44/76] target/riscv: rvv-0.9: single-width averaging add and subtract instructions, Richard Henderson, 2020/07/30
- [RFC v2 45/76] target/riscv: rvv-0.9: single-width bit shift instructions, frank . chang, 2020/07/22
  - Re: [RFC v2 45/76] target/riscv: rvv-0.9: single-width bit shift instructions, Richard Henderson, 2020/07/30
- [RFC v2 46/76] target/riscv: rvv-0.9: integer add-with-carry/subtract-with-borrow, frank . chang, 2020/07/22
- [RFC v2 47/76] target/riscv: rvv-0.9: narrowing integer right shift instructions, frank . chang, 2020/07/22
  - Re: [RFC v2 47/76] target/riscv: rvv-0.9: narrowing integer right shift instructions, Richard Henderson, 2020/07/30
- [RFC v2 48/76] target/riscv: rvv-0.9: widening integer multiply-add instructions, frank . chang, 2020/07/22
  - Re: [RFC v2 48/76] target/riscv: rvv-0.9: widening integer multiply-add instructions, Richard Henderson, 2020/07/30
- [RFC v2 49/76] target/riscv: rvv-0.9: quad-widening integer multiply-add instructions, frank . chang, 2020/07/22
  - Re: [RFC v2 49/76] target/riscv: rvv-0.9: quad-widening integer multiply-add instructions, Richard Henderson <=
- [RFC v2 50/76] target/riscv: rvv-0.9: single-width saturating add and subtract instructions, frank . chang, 2020/07/22
  - Re: [RFC v2 50/76] target/riscv: rvv-0.9: single-width saturating add and subtract instructions, Richard Henderson, 2020/07/30
- [RFC v2 51/76] target/riscv: rvv-0.9: integer comparison instructions, frank . chang, 2020/07/22
  - Re: [RFC v2 51/76] target/riscv: rvv-0.9: integer comparison instructions, Richard Henderson, 2020/07/30
- [RFC v2 52/76] fpu: implement full set compare for fp16, frank . chang, 2020/07/22
  - Re: [RFC v2 52/76] fpu: implement full set compare for fp16, Alex Bennée, 2020/07/22
- [RFC v2 53/76] target/riscv: use softfloat lib float16 comparison functions, frank . chang, 2020/07/22
  - Re: [RFC v2 53/76] target/riscv: use softfloat lib float16 comparison functions, Richard Henderson, 2020/07/30
- [RFC v2 54/76] target/riscv: rvv-0.9: floating-point compare instructions, frank . chang, 2020/07/22
- [RFC v2 55/76] target/riscv: rvv-0.9: single-width integer reduction instructions, frank . chang, 2020/07/22

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