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From: Jeff Law <>
Subject: Re: [PATCH] RISC-V: Add RVV auto-vectorization compile option
Date: Tue, 25 Apr 2023 00:00:19 -0600	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On 4/6/23 19:21, wrote:
> From: Juzhe-Zhong <>
> The next patch to enable basic RVV auto-vectorization of
> VLA auto-vectorization (RVV_SCALABLE) and fixed-length VLS auto-vectorization (RVV_FIXED_VLMAX).
> We will support RVV_FIXED_VLMIN in the future.
> gcc/ChangeLog:
>          * config/riscv/riscv-opts.h (enum riscv_autovec_preference_enum): Add RVV auto-vectorization compile option.
>          (enum riscv_autovec_lmul_enum): Ditto.
>          * config/riscv/riscv.opt: Ditto.
No real objection here.  Just a question.   What's the rationale behind 
exposing lmul settings to the user?  I'd think that should largely be 
compiler managed.  But maybe I'm missing something.


  reply	other threads:[~2023-04-25  6:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-07  1:21 juzhe.zhong
2023-04-25  6:00 ` Jeff Law [this message]
2023-04-25  6:08   ` juzhe.zhong

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