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From: "glisse at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/55278] [4.8/4.9 Regression] Botan performance regressions apparently due to LRA
Date: Tue, 07 May 2013 22:48:00 -0000 [thread overview]
Message-ID: <bug-55278-4-QmGlBeJGhC@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-55278-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55278
--- Comment #7 from Marc Glisse <glisse at gcc dot gnu.org> 2013-05-07 22:48:40 UTC ---
(In reply to comment #6)
> I'm surprised that
> the 16-bit rotations aren't detected/folded into rotations (or rotate_left
> (u16, 8) into a bswap16).
See also PR 45216 for rotate, where the initial report is about rotate16, and
the last comment is about a C++ regression likely related to the sizeof changes
(it is folded too late for fold_binary of | to see the constant).
next prev parent reply other threads:[~2013-05-07 22:48 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-11 23:54 [Bug rtl-optimization/55278] New: " hubicka at gcc dot gnu.org
2013-03-23 19:38 ` [Bug rtl-optimization/55278] [4.8 Regression] " steven at gcc dot gnu.org
2013-03-25 10:21 ` [Bug rtl-optimization/55278] [4.8/4.9 " rguenth at gcc dot gnu.org
2013-03-25 11:03 ` hubicka at gcc dot gnu.org
2013-05-07 22:31 ` mpolacek at gcc dot gnu.org
2013-05-07 22:31 ` mpolacek at gcc dot gnu.org
2013-05-07 22:34 ` jakub at gcc dot gnu.org
2013-05-07 22:48 ` glisse at gcc dot gnu.org [this message]
2013-05-08 6:58 ` jakub at gcc dot gnu.org
2013-05-09 13:59 ` jakub at gcc dot gnu.org
2013-05-09 20:35 ` vmakarov at redhat dot com
2013-05-12 17:36 ` [Bug rtl-optimization/55278] [4.8/4.9 Regression] Botan performance regressions, other compilers generate better code than gcc ubizjak at gmail dot com
2013-05-31 11:01 ` jakub at gcc dot gnu.org
2013-10-16 9:49 ` jakub at gcc dot gnu.org
2014-05-22 9:06 ` [Bug rtl-optimization/55278] [4.8/4.9/4.10 " rguenth at gcc dot gnu.org
2014-12-19 13:28 ` [Bug rtl-optimization/55278] [4.8/4.9/5 " jakub at gcc dot gnu.org
2015-06-23 8:21 ` [Bug rtl-optimization/55278] [4.8/4.9/5/6 " rguenth at gcc dot gnu.org
2015-06-26 19:57 ` [Bug rtl-optimization/55278] [4.9/5/6 " jakub at gcc dot gnu.org
2015-06-26 20:29 ` jakub at gcc dot gnu.org
2021-05-14 9:46 ` [Bug rtl-optimization/55278] [9/10/11/12 " jakub at gcc dot gnu.org
2021-06-01 8:05 ` rguenth at gcc dot gnu.org
2021-07-08 18:00 ` ubizjak at gmail dot com
2022-05-27 9:34 ` [Bug rtl-optimization/55278] [10/11/12/13 " rguenth at gcc dot gnu.org
2022-06-15 7:32 ` cvs-commit at gcc dot gnu.org
2022-06-28 10:30 ` jakub at gcc dot gnu.org
2023-03-16 0:05 ` pinskia at gcc dot gnu.org
2023-07-07 10:29 ` [Bug rtl-optimization/55278] [11/12/13/14 " rguenth at gcc dot gnu.org
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