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Re: [PATCH v2 0/4] target/arm vector improvements

From: Peter Maydell
Subject: Re: [PATCH v2 0/4] target/arm vector improvements
Date: Thu, 20 Feb 2020 14:55:49 +0000

On Sun, 16 Feb 2020 at 21:42, Richard Henderson
<address@hidden> wrote:
> Changes for v2:
> * Rename function arguments as requested by ajb.
> * Minor optimization in helper_gvec_pmul_b.
> Original blurb:
> The first patch has been seen before.
>   https://patchwork.ozlabs.org/patch/1115039/
> It had a bug and I didn't fix it right away and then forgot.
> Fixed now; I had mixed up the operand ordering for aarch32.
> The next 3 are something that I noticed while doing other stuff.
> In particular, pmull is used heavily during https transfers.
> While cloning a repository, the old code peaks at 27% of the
> total runtime, as measured by perf top.  The new code does
> not quite reach 3% repeating the same clone.
> In addition, the new helper functions are in the form that
> will be required for the implementation of SVE2.

Applied to target-arm.next, thanks.

-- PMM

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