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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109154] [13 regression] jump threading de-optimizes nested floating point comparisons
Date: Wed, 29 Mar 2023 06:33:48 +0000 [thread overview]
Message-ID: <bug-109154-4-6fdwgo405g@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-109154-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109154
--- Comment #38 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:
https://gcc.gnu.org/g:c9954996cd647daf0ba03e34dd279b97982f671f
commit r13-6923-gc9954996cd647daf0ba03e34dd279b97982f671f
Author: Richard Biener <rguenther@suse.de>
Date: Tue Mar 28 15:20:22 2023 +0200
tree-optimization/109154 - improve if-conversion for vectorization
With multi-argument PHIs and now doing VN on the if-converted blocks
the optimization of CSEing condition and negated condition doesn't
work well anymore. The following restores this a little bit for
the case of a single inverted condition into a COND_EXPR where
we can instead swap the COND_EXPR arms. The same optimization
is already done for the case of two-argument PHIs.
This avoids one comparison/mask for the testcase at hand.
PR tree-optimization/109154
* tree-if-conv.cc (gen_phi_arg_condition): Handle single
inverted condition specially by inverting at the caller.
(gen_phi_arg_condition): Swap COND_EXPR arms if requested.
next prev parent reply other threads:[~2023-03-29 6:33 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-16 11:57 [Bug tree-optimization/109154] New: [13 regression] aarch64 -mcpu=neoverse-v1 microbude performance regression pgodbole at nvidia dot com
2023-03-16 13:11 ` [Bug tree-optimization/109154] " tnfchris at gcc dot gnu.org
2023-03-16 14:58 ` [Bug target/109154] " rguenth at gcc dot gnu.org
2023-03-16 17:03 ` tnfchris at gcc dot gnu.org
2023-03-16 17:03 ` [Bug target/109154] [13 regression] jump threading with de-optimizes nested floating point comparisons tnfchris at gcc dot gnu.org
2023-03-22 10:20 ` [Bug tree-optimization/109154] [13 regression] jump threading " aldyh at gcc dot gnu.org
2023-03-22 10:29 ` avieira at gcc dot gnu.org
2023-03-22 12:22 ` rguenth at gcc dot gnu.org
2023-03-22 12:42 ` rguenth at gcc dot gnu.org
2023-03-22 13:11 ` aldyh at gcc dot gnu.org
2023-03-22 14:00 ` amacleod at redhat dot com
2023-03-22 14:39 ` aldyh at gcc dot gnu.org
2023-03-27 8:09 ` rguenth at gcc dot gnu.org
2023-03-27 9:30 ` jakub at gcc dot gnu.org
2023-03-27 9:42 ` aldyh at gcc dot gnu.org
2023-03-27 9:44 ` jakub at gcc dot gnu.org
2023-03-27 10:18 ` rguenther at suse dot de
2023-03-27 10:40 ` jakub at gcc dot gnu.org
2023-03-27 10:44 ` jakub at gcc dot gnu.org
2023-03-27 10:54 ` rguenth at gcc dot gnu.org
2023-03-27 10:56 ` jakub at gcc dot gnu.org
2023-03-27 10:59 ` jakub at gcc dot gnu.org
2023-03-27 17:07 ` jakub at gcc dot gnu.org
2023-03-28 8:33 ` rguenth at gcc dot gnu.org
2023-03-28 9:01 ` cvs-commit at gcc dot gnu.org
2023-03-28 10:07 ` tnfchris at gcc dot gnu.org
2023-03-28 10:08 ` tnfchris at gcc dot gnu.org
2023-03-28 12:18 ` jakub at gcc dot gnu.org
2023-03-28 12:25 ` rguenth at gcc dot gnu.org
2023-03-28 12:42 ` rguenth at gcc dot gnu.org
2023-03-28 13:19 ` rguenth at gcc dot gnu.org
2023-03-28 13:44 ` jakub at gcc dot gnu.org
2023-03-28 13:52 ` jakub at gcc dot gnu.org
2023-03-28 15:31 ` amacleod at redhat dot com
2023-03-28 15:40 ` jakub at gcc dot gnu.org
2023-03-28 15:53 ` amacleod at redhat dot com
2023-03-28 15:58 ` jakub at gcc dot gnu.org
2023-03-28 16:42 ` amacleod at redhat dot com
2023-03-28 21:12 ` amacleod at redhat dot com
2023-03-29 6:33 ` cvs-commit at gcc dot gnu.org [this message]
2023-03-29 6:38 ` rguenth at gcc dot gnu.org
2023-03-29 22:41 ` amacleod at redhat dot com
2023-03-30 18:17 ` cvs-commit at gcc dot gnu.org
2023-04-05 9:28 ` tnfchris at gcc dot gnu.org
2023-04-05 9:34 ` ktkachov at gcc dot gnu.org
2023-04-11 9:36 ` rguenth at gcc dot gnu.org
2023-04-13 16:54 ` jakub at gcc dot gnu.org
2023-04-13 17:25 ` rguenther at suse dot de
2023-04-13 17:29 ` jakub at gcc dot gnu.org
2023-04-14 18:10 ` jakub at gcc dot gnu.org
2023-04-14 18:14 ` jakub at gcc dot gnu.org
2023-04-14 18:22 ` jakub at gcc dot gnu.org
2023-04-14 19:09 ` jakub at gcc dot gnu.org
2023-04-15 10:10 ` cvs-commit at gcc dot gnu.org
2023-04-17 11:07 ` jakub at gcc dot gnu.org
2023-04-25 18:32 ` [Bug tree-optimization/109154] [13/14 " tnfchris at gcc dot gnu.org
2023-04-25 18:34 ` jakub at gcc dot gnu.org
2023-04-26 6:58 ` rguenth at gcc dot gnu.org
2023-04-26 9:43 ` tnfchris at gcc dot gnu.org
2023-04-26 10:07 ` jakub at gcc dot gnu.org
2023-07-07 18:10 ` tnfchris at gcc dot gnu.org
2023-07-10 7:15 ` rguenth at gcc dot gnu.org
2023-07-10 10:33 ` tnfchris at gcc dot gnu.org
2023-07-10 10:46 ` rguenth at gcc dot gnu.org
2023-07-10 11:02 ` tnfchris at gcc dot gnu.org
2023-07-10 11:27 ` rguenth at gcc dot gnu.org
2023-07-10 11:49 ` tnfchris at gcc dot gnu.org
2023-07-14 10:22 ` cvs-commit at gcc dot gnu.org
2023-07-14 10:22 ` cvs-commit at gcc dot gnu.org
2023-07-27 9:25 ` rguenth at gcc dot gnu.org
2023-10-02 10:53 ` cvs-commit at gcc dot gnu.org
2023-10-18 8:54 ` cvs-commit at gcc dot gnu.org
2023-10-18 8:54 ` cvs-commit at gcc dot gnu.org
2023-10-18 8:54 ` cvs-commit at gcc dot gnu.org
2023-10-18 8:55 ` cvs-commit at gcc dot gnu.org
2023-11-09 14:20 ` cvs-commit at gcc dot gnu.org
2023-11-09 14:20 ` cvs-commit at gcc dot gnu.org
2023-11-09 14:20 ` cvs-commit at gcc dot gnu.org
2023-11-09 14:20 ` cvs-commit at gcc dot gnu.org
2023-11-09 14:20 ` cvs-commit at gcc dot gnu.org
2023-11-09 14:20 ` cvs-commit at gcc dot gnu.org
2023-11-09 14:20 ` cvs-commit at gcc dot gnu.org
2023-11-09 14:20 ` cvs-commit at gcc dot gnu.org
2023-11-09 14:25 ` [Bug tree-optimization/109154] [13 " tnfchris at gcc dot gnu.org
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