Re: add AVX2 support to simd.h - Mailing list pgsql-hackers

From Nathan Bossart
Subject Re: add AVX2 support to simd.h
Date
Msg-id 20240327185716.GA4188857@nathanxps13
Whole thread Raw
In response to Re: add AVX2 support to simd.h  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: add AVX2 support to simd.h
List pgsql-hackers
On Tue, Mar 26, 2024 at 09:48:57PM -0400, Tom Lane wrote:
> Nathan Bossart <nathandbossart@gmail.com> writes:
>> I just did the minimal fix for now, i.e., I moved the new label into the
>> SIMD section of the function.  I think it would be better stylistically to
>> move the one-by-one logic to an inline helper function, but I didn't do
>> that just in case it might negatively impact performance.  I'll look into
>> this and will follow up with another patch if it looks good.
> 
> Sounds like a plan.

Here's what I had in mind.  My usual benchmark seems to indicate that this
shouldn't impact performance.

-- 
Nathan Bossart
Amazon Web Services: https://aws.amazon.com

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