Re: pgsql: Inline CRC computation for small fixed-length input on x86

From: John Naylor <johncnaylorls(at)gmail(dot)com>
To: John Naylor <john(dot)naylor(at)postgresql(dot)org>
Cc: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: Re: pgsql: Inline CRC computation for small fixed-length input on x86
Date: 2025-03-31 07:18:05
Message-ID: CANWCAZYRbrAyUG29SyVZdamEaSfX0FG=TuyhMaGyqJhpdTN=vg@mail.gmail.com
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On Mon, Mar 31, 2025 at 1:28 PM John Naylor <john(dot)naylor(at)postgresql(dot)org> wrote:
>
> Inline CRC computation for small fixed-length input on x86

Hmm, skimmer doesn't like this, and it's one of the animals that
builds with -msse4.2:

https://buildfarm.postgresql.org/cgi-bin/show_stage_log.pl?nm=skimmer&dt=2025-03-31%2007%3A00%3A27&stg=configure

"checking which CRC-32C implementation to use... SSE 4.2"

I'm now looking for clues as to what could be causing the build failure.

--
John Naylor
Amazon Web Services

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