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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 middle-end/109849] suboptimal code for vector walking loop
Date: Tue, 23 May 2023 09:57:57 +0000 [thread overview]
Message-ID: <bug-109849-4-Je6h9SRJ0D@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-109849-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109849
--- Comment #11 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:9e2017ae6ac788d3e36999bb0f0d20ea0f62c20e
commit r14-1127-g9e2017ae6ac788d3e36999bb0f0d20ea0f62c20e
Author: Richard Biener <rguenther@suse.de>
Date: Thu May 18 13:52:29 2023 +0200
tree-optimization/109849 - missed code hoisting
The following fixes code hoisting to properly consider ANTIC_OUT instead
of ANTIC_IN. That's a bit expensive to re-compute but since we no
longer iterate we're doing this only once per BB which should be
acceptable. This avoids missing hoistings to the end of blocks where
something in the block clobbers the hoisted value.
PR tree-optimization/109849
* tree-ssa-pre.cc (do_hoist_insertion): Compute ANTIC_OUT
and use that to determine what to hoist.
* gcc.dg/tree-ssa/ssa-hoist-8.c: New testcase.
next prev parent reply other threads:[~2023-05-23 9:57 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-13 22:26 [Bug middle-end/109849] New: " hubicka at gcc dot gnu.org
2023-05-13 22:32 ` [Bug middle-end/109849] " pinskia at gcc dot gnu.org
2023-05-13 22:40 ` pinskia at gcc dot gnu.org
2023-05-14 5:57 ` amonakov at gcc dot gnu.org
2023-05-14 9:58 ` hubicka at ucw dot cz
2023-05-14 10:01 ` hubicka at ucw dot cz
2023-05-15 6:56 ` rguenth at gcc dot gnu.org
2023-05-17 14:53 ` hubicka at gcc dot gnu.org
2023-05-17 20:36 ` rguenth at gcc dot gnu.org
2023-05-18 9:35 ` hubicka at gcc dot gnu.org
2023-05-18 11:54 ` rguenth at gcc dot gnu.org
2023-05-18 13:00 ` hubicka at gcc dot gnu.org
2023-05-23 9:57 ` cvs-commit at gcc dot gnu.org [this message]
2023-05-23 10:10 ` rguenth at gcc dot gnu.org
2023-05-24 11:19 ` cvs-commit at gcc dot gnu.org
2023-06-16 14:20 ` hubicka at gcc dot gnu.org
2023-06-18 16:59 ` cvs-commit at gcc dot gnu.org
2023-06-19 16:28 ` cvs-commit at gcc dot gnu.org
2023-06-26 16:30 ` cvs-commit at gcc dot gnu.org
2023-06-28 9:47 ` cvs-commit at gcc dot gnu.org
2023-06-29 20:46 ` cvs-commit at gcc dot gnu.org
2023-06-30 14:28 ` cvs-commit at gcc dot gnu.org
2023-11-19 15:25 ` hubicka at gcc dot gnu.org
2023-11-21 14:17 ` cvs-commit at gcc dot gnu.org
2023-11-21 15:12 ` hubicka at gcc dot gnu.org
2023-11-24 16:35 ` cvs-commit at gcc dot gnu.org
2023-11-24 17:00 ` cvs-commit at gcc dot gnu.org
2023-11-24 17:00 ` jamborm at gcc dot gnu.org
2023-11-27 14:39 ` rguenth at gcc dot gnu.org
2023-11-28 9:33 ` redi at gcc dot gnu.org
2023-11-28 10:32 ` jamborm at gcc dot gnu.org
2023-11-28 12:41 ` redi at gcc dot gnu.org
2023-11-28 13:29 ` redi at gcc dot gnu.org
2023-11-28 15:29 ` redi at gcc dot gnu.org
2023-11-28 22:21 ` redi at gcc dot gnu.org
2023-11-29 12:27 ` hubicka at ucw dot cz
2023-11-29 15:25 ` cvs-commit at gcc dot gnu.org
2024-01-03 17:41 ` jamborm at gcc dot gnu.org
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