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 5BB59385BF81; Fri, 17 Apr 2020 05:09:10 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5BB59385BF81
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1587100150;
 bh=DcmEZV0ORmUN+NqfkXBsRx0hSlEJZlsg7io/LqcmkYw=;
 h=From:To:Subject:Date:In-Reply-To:References:From;
 b=WF2gIXG+XHX3fQ2BHptexdVxqCQLwJ5MeFsXLgYncOyRNQEAH2S2yQ1JOCi+pGwiu
 Hjpod7KzSThjRRC5Q5Xh5lortGas/HwV3fixNQ775nGTqsfbH5NCdejpUHlVyY2e6I
 50poDeWDo2xFE26sMdDra5rD3EkKK2qQj4WmknlA=
From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/94631] Wrong codegen for arithmetic on bitfields
Date: Fri, 17 Apr 2020 05:09:10 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c
X-Bugzilla-Version: unknown
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: pinskia at gcc dot gnu.org
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: INVALID
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_status resolution
Message-ID: <bug-94631-4-KpqODyJNhQ@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-94631-4@http.gcc.gnu.org/bugzilla/>
References: <bug-94631-4@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: <http://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: <http://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Fri, 17 Apr 2020 05:09:10 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94631

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>I don't believe there's any language in the standard supporting what GCC i=
s doing here.

Wrong, see C DR 120 where it talks about this specific thing.


See https://gcc.gnu.org/legacy-ml/gcc/2017-10/msg00192.html for on why GCC =
is
correct (and even why LLVM is correct too).

Even GCC's C++ front-end is differs from GCC's C front-end here too.=