From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 20F3C385800D; Mon, 25 Oct 2021 10:49:38 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 20F3C385800D
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/102905] [12 regression] several vector test
 cases fail on power 7 after r12-4490
Date: Mon, 25 Oct 2021 10:49:37 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 12.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-102905-4-bC9mWD7th7@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-102905-4@http.gcc.gnu.org/bugzilla/>
References: <bug-102905-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Mon, 25 Oct 2021 10:49:38 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102905

--- Comment #3 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:0b028fb4989c2bdfaf474b4493c5926fb40da3c3

commit r12-4660-g0b028fb4989c2bdfaf474b4493c5926fb40da3c3
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Oct 25 11:33:10 2021 +0200

    tree-optimization/102905 - restore re-align load for alignment peeling

    Previous refactoring made the possibility of considering re-aligned
    loads for unlimited cost model alignment peeling difficult so I
    ditched that.  Later refactoring made it easily possible again so
    the following patch re-instantiates this which should fix the
    observed regression on powerpc with altivec.

    2021-10-25  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/102905
            * tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
            Use vect_supportable_dr_alignment again to determine whether
            an access is supported when not aligned.=