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

From Nathan Bossart
Subject Re: Popcount optimization using AVX512
Date
Msg-id 20240408013002.GA1352058@nathanxps13
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In response to Re: Popcount optimization using AVX512  (Nathan Bossart <nathandbossart@gmail.com>)
Responses Re: Popcount optimization using AVX512
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On Sun, Apr 07, 2024 at 08:23:32PM -0500, Nathan Bossart wrote:
> The Intel documentation for _mm256_undefined_si256() [0]
> indicates that it is intended to return "undefined elements," so it seems
> like the use of an uninitialized variable might be intentional.

See also https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=72af61b122.

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

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