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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/106293] [13/14 Regression] 456.hmmer at -Ofast -march=native regressed by 19% on zen2 and zen3 in July 2022
Date: Wed, 02 Aug 2023 09:42:00 +0000 [thread overview]
Message-ID: <bug-106293-4-g0q8MsW2An@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-106293-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106293
--- Comment #25 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Jan Hubicka from comment #24)
> g:2e93b92c1ec5fbbbe10765c6e059c3c90d564245 fixes the profile update after
> cancelled distribution. However it does not help hmmer since we actually
> vectorize that loop iterating 0 times. We need to figure out proper
> iteration count for that and convince loop distribution and vectorizer to do
> nothing on it.
or use a smaller VF? I doubt the scalar loop iterates zero times?
next prev parent reply other threads:[~2023-08-02 9:42 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-14 9:08 [Bug tree-optimization/106293] New: " jamborm at gcc dot gnu.org
2022-07-14 9:22 ` [Bug tree-optimization/106293] [13 Regression] " rguenth at gcc dot gnu.org
2022-07-14 12:10 ` rguenth at gcc dot gnu.org
2022-07-14 12:22 ` rguenth at gcc dot gnu.org
2022-07-25 9:44 ` luoxhu at gcc dot gnu.org
2022-07-25 9:46 ` luoxhu at gcc dot gnu.org
2023-01-10 12:12 ` yann at ywg dot ch
2023-01-10 12:45 ` rguenth at gcc dot gnu.org
2023-01-10 15:53 ` cvs-commit at gcc dot gnu.org
2023-01-10 15:54 ` rguenth at gcc dot gnu.org
2023-01-11 7:04 ` cvs-commit at gcc dot gnu.org
2023-04-17 15:11 ` [Bug tree-optimization/106293] [13/14 " jakub at gcc dot gnu.org
2023-04-17 16:15 ` jamborm at gcc dot gnu.org
2023-04-26 6:56 ` rguenth at gcc dot gnu.org
2023-07-27 9:23 ` rguenth at gcc dot gnu.org
2023-07-27 18:01 ` hubicka at gcc dot gnu.org
2023-07-27 21:38 ` hubicka at gcc dot gnu.org
2023-07-28 7:22 ` rguenther at suse dot de
2023-07-28 8:01 ` Jan Hubicka
2023-07-28 7:51 ` cvs-commit at gcc dot gnu.org
2023-07-28 8:01 ` hubicka at ucw dot cz
2023-07-28 12:09 ` rguenther at suse dot de
2023-07-31 7:44 ` hubicka at gcc dot gnu.org
2023-07-31 15:39 ` jamborm at gcc dot gnu.org
2023-08-01 10:40 ` hubicka at gcc dot gnu.org
2023-08-02 8:48 ` hubicka at gcc dot gnu.org
2023-08-02 9:42 ` rguenth at gcc dot gnu.org [this message]
2023-08-04 10:09 ` [Bug tree-optimization/106293] [13 regression] " hubicka at gcc dot gnu.org
2023-08-07 8:56 ` cvs-commit at gcc dot gnu.org
2023-08-10 16:01 ` hubicka at gcc dot gnu.org
2024-05-21 9:11 ` jakub at gcc dot gnu.org
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