Re: Popcount optimization using AVX512 - Mailing list pgsql-hackers

From Andres Freund
Subject Re: Popcount optimization using AVX512
Date
Msg-id 20240209182432.7c2peq5cgbdl43um@awork3.anarazel.de
Whole thread Raw
In response to Re: Popcount optimization using AVX512  (Alvaro Herrera <alvherre@alvh.no-ip.org>)
Responses Re: Popcount optimization using AVX512
List pgsql-hackers
Hi,

On 2024-01-26 07:42:33 +0100, Alvaro Herrera wrote:
> This suggests that finding a way to make the ifunc stuff work (with good
> performance) is critical to this work.

Ifuncs are effectively implemented as a function call via a pointer, they're
not magic, unfortunately. The sole trick they provide is that you don't
manually have to use the function pointer.

Greetings,

Andres



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