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 59C2B385E44A; Tue, 22 Mar 2022 03:48:58 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 59C2B385E44A
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/104978] [avx512fp16] wrong code for
 _mm_mask_fcmadd_round_sch
Date: Tue, 22 Mar 2022 03:48:58 +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: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
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: 
Message-ID: <bug-104978-4-1PWkWjnTcd@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-104978-4@http.gcc.gnu.org/bugzilla/>
References: <bug-104978-4@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, 22 Mar 2022 03:48:58 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104978

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Hongyu Wang <hongyuw@gcc.gnu.org>:

https://gcc.gnu.org/g:7bce0be03b857eefe5990c3ef0af06ea8f8ae04e

commit r12-7747-g7bce0be03b857eefe5990c3ef0af06ea8f8ae04e
Author: Hongyu Wang <hongyu.wang@intel.com>
Date:   Sat Mar 19 01:16:29 2022 +0800

    AVX512FP16: Fix wrong code for _mm_mask_f[c]madd.*sch [PR 104978]

    For complex scalar intrinsic like _mm_mask_fcmadd_sch, the
    mask should be and by 1 to ensure the mask is bind to lowest byte.
    Use masked vmovss to perform same operation which omits higher bits
    of mask.

    gcc/ChangeLog:

            PR target/104978
            * config/i386/sse.md
            (avx512fp16_fmaddcsh_v8hf_mask1<round_expand_name):
            Use avx512f_movsf_mask instead of vmovaps or vblend, and
            force_reg before lowpart_subreg.
            (avx512fp16_fcmaddcsh_v8hf_mask1<round_expand_name): Likewise.

    gcc/testsuite/ChangeLog:

            PR target/104978
            * gcc.target/i386/avx512fp16-vfcmaddcsh-1a.c: Adjust asm scan.
            * gcc.target/i386/avx512fp16-vfmaddcsh-1a.c: Ditto.
            * gcc.target/i386/avx512fp16-vfcmaddcsh-1c.c: Removed.
            * gcc.target/i386/avx512fp16-vfmaddcsh-1c.c: Ditto.
            * gcc.target/i386/pr104978.c: New test.=