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 3E1FE386188A; Thu, 30 Jul 2020 08:39:47 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3E1FE386188A
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1596098387;
 bh=foSlJXOQlfmzQ2oTIhLjaZY3m0oxzWLIUC3veYew2jw=;
 h=From:To:Subject:Date:In-Reply-To:References:From;
 b=oM1szXQhollv3KFyj7EwUexqjdJ5LH9PIit32p7gS1TB3+G0V+1iA94Lv32GK03w2
 fZlNqttdp/vupzIZFZAb6R03NV8fxHCCBtAD/tDVOczTuZoj0dCddDNWy3tfFFs3FX
 /JI4PxCrehdd5Wq56jUU8k6qFb61wKf8YUDYi8TU=
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/95435] bad builtin memcpy performance with znver1/znver2
 and 32bit
Date: Thu, 30 Jul 2020 08:39:47 +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: 10.1.1
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: marxin at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-95435-4-K1Wr86whHb@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-95435-4@http.gcc.gnu.org/bugzilla/>
References: <bug-95435-4@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: Thu, 30 Jul 2020 08:39:47 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95435

--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Martin Liska
<marxin@gcc.gnu.org>:

https://gcc.gnu.org/g:809b4d226c7f5ded392a88ffafe8d652f911b473

commit r10-8554-g809b4d226c7f5ded392a88ffafe8d652f911b473
Author: Martin Liska <mliska@suse.cz>
Date:   Mon Jun 1 13:21:40 2020 +0200

    Tune memcpy and memset for Zen cores.

    Based on the collected numbers in PR95435, I suggest the following
    tuning changes:

    gcc/ChangeLog:

            PR target/95435
            * config/i386/x86-tune-costs.h: Use libcall for large sizes for
            -m32. Start using libcall from 128+ bytes.

    (cherry picked from commit dc65aba7a4725d1b464c8c64a5f739ee910e8943)=