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Date: Sat, 30 Jan 2021 01:13:34 +0100
From: Steffen Nurpmeso <steffen@sdaoden.eu>
To: Jessica Clarke <jrtc27@freebsd.org>
Cc: Mateusz Guzik <mjg@FreeBSD.org>,
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Subject: Re: git: 710e45c4b853 - main - Reimplement strlen
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Jessica Clarke wrote in
 <AC9CB72D-FB20-4CB2-A64E-518764CCF750@freebsd.org>:
 |On 29 Jan 2021, at 23:48, Mateusz Guzik <mjg@FreeBSD.org> wrote:
 |> 
 |> The branch main has been updated by mjg:
 |> 
 |> URL: https://cgit.FreeBSD.org/src/commit/?id=710e45c4b8539d028877769f1a4\
 |> ec088c48fb5f1
 |> 
 |> commit 710e45c4b8539d028877769f1a4ec088c48fb5f1
 |> Author:     Mateusz Guzik <mjg@FreeBSD.org>
 |> AuthorDate: 2021-01-29 21:48:11 +0000
 |> Commit:     Mateusz Guzik <mjg@FreeBSD.org>
 |> CommitDate: 2021-01-29 23:48:26 +0000
 |> 
 |>    Reimplement strlen
 |
 |This really should have gone through code review.

Out of topic: i seem to recall to have seen these masks and
similar code (with predictions) in the Linux kernel about 20 years
ago.  I admire people who grasp and wrap their heads around such
maths on the fly.  I tend to forget it again and again.  Mind you,
cycling two days ago over across the small hill i landed in
winter, today it was all melted and the sheeps adored it.

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)