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 D28E83861028; Wed,  5 Aug 2020 13:21:01 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D28E83861028
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1596633661;
 bh=Td3RBo8pKsgk+auDcq6mJoJA2AZCztTgn0yz+woB0AE=;
 h=From:To:Subject:Date:In-Reply-To:References:From;
 b=bE8YpgncpfQ+Rsb1WvYlgWUnSvG+yEkZ0MqyV9XnviTTCeQCxWA/aoAwOueIfo9ii
 RKrZnqfJBPX/UzLj+TP3zJr7D6o99lRvPIwps9NI3bHcwcQOsq/qJXCLVSHYfo+vzB
 iLRvCM4tpD0O9nyiYgJkwoGs7CM+SyaisvLeAtds=
From: "zhongyunde at huawei dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/96427] Missing align attribute for anchor section from local
 variables
Date: Wed, 05 Aug 2020 13:21:01 +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: 9.3.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: zhongyunde at huawei dot com
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: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: cc
Message-ID: <bug-96427-4-rVdDEQ09Pb@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-96427-4@http.gcc.gnu.org/bugzilla/>
References: <bug-96427-4@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: Wed, 05 Aug 2020 13:21:01 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96427

vfdff <zhongyunde at huawei dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zhongyunde at huawei dot c=
om

--- Comment #4 from vfdff <zhongyunde at huawei dot com> ---
I test your case base on x86-64 gcc 10.1 with -O2 -S -mavx512f, the .rodata
aligned to 64 bytes, and it aligned to 32 bytes on x86-64 gcc 9.3 with -O2 =
-S
-mavx512f, i.e. it have different behaviour base on different gcc version.

so it is a undefined behaviour ?=