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 5AB263857C6F; Tue, 25 Aug 2020 08:20:47 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5AB263857C6F
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1598343647;
 bh=xvgkk6v7ddiws8Xg9A9SjrRPlAX1v3DuG/D121O46cs=;
 h=From:To:Subject:Date:In-Reply-To:References:From;
 b=tpMJKtf7VZJyVCKlh5518GCo33s7JJs4L1XOREW7zsSqTlOnm1meyactM6/n7yCqH
 RCcipKu8oImieFVmF1/kEL/McENfifHnroMkw67jy/5JRIco0sBcTUAnPe1YFR00Rl
 SK+fKUbxIF7Q2Y3ADvh5dlt3DBuCA6dLSzW9YhSU=
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/96564] [11 Regression] New maybe use of
 uninitialized variable warning since r11-959
Date: Tue, 25 Aug 2020 08:20:47 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
X-Bugzilla-Version: 11.0
X-Bugzilla-Keywords: alias, diagnostic, missed-optimization
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 11.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-96564-4-3BM9GMTwoY@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-96564-4@http.gcc.gnu.org/bugzilla/>
References: <bug-96564-4@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: Tue, 25 Aug 2020 08:20:47 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96564

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
note alias cannot disabiguate (A) on its own since both a and x could be NU=
LL,
it additionally needs the flow-based info that a is not NULL at (A).=