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From: Nathan Bossart <nathandbossart@gmail.com>
To: Raghuveer Devulapalli <raghuveer.devulapalli@intel.com>
Cc: pgsql-hackers@lists.postgresql.org
Subject: Re: Popcount optimization using AVX512
Date: Wed, 30 Oct 2024 16:10:10 -0500
Message-ID: <ZyKgsihSKB0kAI3U@nathan> (raw)
In-Reply-To: <173032159044.1162.17669652767784249811.pgcf@coridan.postgresql.org>
References: <BL1PR11MB5304097DF7EA81D04C33F3D1DCA6A@BL1PR11MB5304.namprd11.prod.outlook.com>
	<173022983862.1162.9439822012408182864.pgcf@coridan.postgresql.org>
	<173032159044.1162.17669652767784249811.pgcf@coridan.postgresql.org>

On Wed, Oct 30, 2024 at 08:53:10PM +0000, Raghuveer Devulapalli wrote:
> BTW, I just realized function attributes for xsave and avx512 don't work
> on MSVC (see
> https://developercommunity.visualstudio.com/t/support-function-target-attribute-and-mutiversioning/1...).
> Not sure if you care about it. Its an easy fix (see
> https://gcc.godbolt.org/z/Pebdj3vMx).

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.

-- 
nathan





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