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 A3D633858D28; Thu, 28 Apr 2022 19:14:39 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A3D633858D28
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/103938] [9/10/11/12/13 Regression] ICE with
 __builtin_prefetch and vectors
Date: Thu, 28 Apr 2022 19:14:39 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: ice-checking, ice-on-valid-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 9.5
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-103938-4-9NKORvh1e8@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-103938-4@http.gcc.gnu.org/bugzilla/>
References: <bug-103938-4@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: Thu, 28 Apr 2022 19:14:39 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103938

--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Alex Coplan from comment #7)
> A bisect shows this started with
> r12-2288-g8695bf78dad1a42636775843ca832a2f4dba4da3 :
>=20
> commit 8695bf78dad1a42636775843ca832a2f4dba4da3
> Author: Jonathan Wright <jonathan.wright@arm.com>
> Date:   Wed Jun 2 16:55:00 2021 +0100
>=20
>     gcc: Add vec_select -> subreg RTL simplification
>=20
> which makes it a [12/13 Regression], unless I'm missing something? Should=
 it
> be a P1?

It only ices for checking and does not produce wrong code when release chec=
king
so it would be a p2 in my mind.
Plus it was latent before that patch as I could reproduce on a gcc 10 (mayb=
e I
have some other optimizations added which expose it in gcc 10).=