RE: Popcount optimization using AVX512

From: "Devulapalli, Raghuveer" <raghuveer(dot)devulapalli(at)intel(dot)com>
To: Nathan Bossart <nathandbossart(at)gmail(dot)com>
Cc: "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: RE: Popcount optimization using AVX512
Date: 2024-10-30 21:36:00
Message-ID: PH8PR11MB828607C32E9C914356A1DE16FB542@PH8PR11MB8286.namprd11.prod.outlook.com
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> Oh, good catch. IIUC we only need to check for #ifndef _MSC_VER in the
> configure programs for meson. pg_attribute_target will be empty on MSVC, and I
> believe we only support meson builds there.

Right. __has_attribute (target) produces a compiler warning on MSVC: https://gcc.godbolt.org/z/EfWGxbvj3. Might need to guard that with #if defined(__has_attribute) to get rid of it.

>
> --
> nathan

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