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[2620:137:e000::1:20]) by mx.google.com with ESMTP id r5-20020a170906a20500b0098932a90cdasi57205ejy.255.2023.08.30.15.11.43; Wed, 30 Aug 2023 15:12:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gnuweeb.org header.s=default header.b=C2sqw7Zx; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnuweeb.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238951AbjH3Sjc (ORCPT + 99 others); Wed, 30 Aug 2023 14:39:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245750AbjH3QLc (ORCPT ); Wed, 30 Aug 2023 12:11:32 -0400 Received: from gnuweeb.org (gnuweeb.org [51.81.211.47]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F355198 for ; Wed, 30 Aug 2023 09:11:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gnuweeb.org; s=default; t=1693411889; bh=pLOKt2kvMiazDndB8CsqMBCoLURktb9taQtXoSw3vVQ=; h=References:In-Reply-To:From:Date:Subject:To:Cc; b=C2sqw7Zx/A71FKGI2EcmN867FNA3yTRoc2tbu7FiJhMQiy9/xyWfenR2XK5qaMa3P x8SPw5wLbt5YlaFc6mXp/4y9lalct9uVs2YxVdX4jlg0oY/H6Byl9v1/u7zPZElE8I tL3JS3k7+U9zo3ni8eWjE7uhzuLbG7bODf5jgUoFE00u8MZzBrbhKOE49B/sRxWYWU ms/h5jiMd7jWYO93FfnY/IeQyZ8rzXP9jtLn4ndiFeRWczGOZIJQBiid+VwkoP4RQY iWH+BriKK6SjLL4jmYkG/sF/pDlSA89fan1/q0PUu2EWVWpgULNp04uOLZC/KbSLTF HO8+1McM/V4Yw== Received: from mail-lj1-f171.google.com (mail-lj1-f171.google.com [209.85.208.171]) by gnuweeb.org (Postfix) with ESMTPSA id 0A6DE24B34B for ; Wed, 30 Aug 2023 23:11:29 +0700 (WIB) Received: by mail-lj1-f171.google.com with SMTP id 38308e7fff4ca-2bb9a063f26so88697381fa.2 for ; Wed, 30 Aug 2023 09:11:28 -0700 (PDT) X-Gm-Message-State: AOJu0YyqHdG0nfea72aC4QXLHrVsUXcuzVAfJK0MEY4a6YZKD14XxTqM GevNlpCToSOpbHZGMbqn5zk6CL/4muz06qq6yxI= X-Received: by 2002:a05:6512:31c8:b0:4f8:7897:55e6 with SMTP id j8-20020a05651231c800b004f8789755e6mr2285663lfe.45.1693411886874; Wed, 30 Aug 2023 09:11:26 -0700 (PDT) MIME-Version: 1.0 References: <20230830135726.1939997-1-ammarfaizi2@gnuweeb.org> <20230830135726.1939997-3-ammarfaizi2@gnuweeb.org> In-Reply-To: From: Alviro Iskandar Setiawan Date: Wed, 30 Aug 2023 23:11:15 +0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [RFC PATCH v1 2/5] tools/nolibc: x86-64: Use `rep stosb` for `memset()` To: Ammar Faizi Cc: Willy Tarreau , =?UTF-8?Q?Thomas_Wei=C3=9Fschuh?= , Nicholas Rosenberg , Michael William Jonathan , "GNU/Weeb Mailing List" , Linux Kernel Mailing List Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 30, 2023 at 11:08=E2=80=AFPM Ammar Faizi wrote: > On Wed, Aug 30, 2023 at 05:51:52PM +0200, Willy Tarreau wrote: > > xchg %eax, %esi 1 > > push %rdx 1 > > pop %rcx 1 > > push %rdi 1 > > rep movsb 2 [sic] > > pop %rax 1 > > ret 1 > > ------------- Total: 8 bytes :-) That's beautiful! -- Viro