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 56270385803D; Tue, 17 May 2022 10:11:54 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 56270385803D
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/105613] [13 Regression] wrong code with unsigned V1TI
 comparison since r13-458-gd75d4293dcc029
Date: Tue, 17 May 2022 10:11:54 +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: 13.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P1
X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 13.0
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-105613-4-T2aCIS25dC@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-105613-4@http.gcc.gnu.org/bugzilla/>
References: <bug-105613-4@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, 17 May 2022 10:11:54 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105613

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:254cbf72661b932eb039220fccef9a2546ab8f4e

commit r13-552-g254cbf72661b932eb039220fccef9a2546ab8f4e
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue May 17 12:10:30 2022 +0200

    i386: Fix up V2DI and V1TI inequality comparisons [PR105613]

    The recent r13-458 change to introduce vec_cmpeqv1tiv1ti and
    add TARGET_SSE2 support to vec_cmpeqv2div2di works nicely for
    equality comparisons, but as the testcase shows doesn't work
    for inequality comparisons.
    For EQ if we perform comparison with twice as many half-sized elemenets,
    the result should be ~0 when both halves are ~0 only (both halves need
    to be equal for the whole to be equal), otherwise 0, so AND is the
    correct operation for it.
    But for NE, the result should be ~0 when either of the halves is ~0
    (if either half is not equal, the whole is not equal) and so the right
    operation for NE is IOR, not AND.

    2022-05-17  Jakub Jelinek  <jakub@redhat.com>

            PR target/105613
            * config/i386/sse.md (vec_cmpeqv2div2di, vec_cmpeqv1tiv1ti): Use
            andv4si3 only for EQ, for NE use iorv4si3 instead.

            * gcc.c-torture/execute/pr105613.c: New test.=