From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 676A7C25B76 for ; Sat, 8 Jun 2024 18:14:04 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sG0ZU-0006h1-SJ; Sat, 08 Jun 2024 14:13:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sG0ZT-0006gg-NV for qemu-devel@nongnu.org; Sat, 08 Jun 2024 14:13:43 -0400 Received: from mail-pf1-x429.google.com ([2607:f8b0:4864:20::429]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sG0ZS-0002yA-6n for qemu-devel@nongnu.org; Sat, 08 Jun 2024 14:13:43 -0400 Received: by mail-pf1-x429.google.com with SMTP id d2e1a72fcca58-702555eb23bso2582667b3a.1 for ; Sat, 08 Jun 2024 11:13:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1717870421; x=1718475221; darn=nongnu.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id:from :to:cc:subject:date:message-id:reply-to; bh=/13LeAeo2QsolB4ha8btlMf8enEspG13rwc1CPOeC0I=; b=TICddoHdSFrpov/Nsr33GRXTrgxcnbvmiRlHSaC2sDvOSaFtol38nS/mQISVPuGCR1 1yYo0pEboFDsW0AOfhzBLAH+vgFmFfxBYwJsdChiu/sB3P9noJxKwlXC3Y/WLS2mv/as Qq2vXCe2BVsTrOA9kxu+8jpYFa97B1+nUq5oSwdyzDuukfoi3rOB+3khA/aqbsMqeSxX KGxdWH0WIsMxXbkwnKQz6Cyx8COOd014FEJL7b/TwMDl3O2Z4iSRWiCSI2LryVt13lsD WuSb3UkWyPDQby2aeeJHOeygW3lwM2fkE3OcQ9s/KUQRb8GwTTuXzI0osAt57LEVgQTG Uzgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717870421; x=1718475221; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=/13LeAeo2QsolB4ha8btlMf8enEspG13rwc1CPOeC0I=; b=UIEgOypqsmd73OHObnhWXYGjgK83ZOxXdcYhZmCPczPLrjDLIh8SNjAl+SqQIv4NK7 QiSYj/zOWGVQuQaYiMxDtUVSJQv5iAfwM9OcXEqqk1Lb9J+kIA1KRUwV4Bb8clXYExaf 9sncjhSx9VvaERUFFGHoHXA2j1QhOVmuA8z3/jOPnE/yng9CFZECNT4a0ftWAYiY/yYN eSVUjGGRzfjqviJWNlGv/DoZQysLgy8GUXPb+lkHqxJqTE2N3A+Jv0sVr/wJekMy/hvh 12zggu6i/gChTxHfiSclck42if6ocsoQijWb22gmbRl7Fac0MHjU+IKCVxjkjk2qZgl8 pMng== X-Forwarded-Encrypted: i=1; AJvYcCWll8aW054CXPUQiz541o0zebxbvyfAb9ODeGKtqHhRik9NBBPdkZ7M8JqkFiZAHHDHjWDiQL94QevxY50/ZXfjHJZb9eU= X-Gm-Message-State: AOJu0YzheYNjxSF9s7cqJFvnPg5zEg/zmvDuRMKkR49pR92iSG+lENKR 6P7Yhx6VYBUEm+QKYSCYHOJzRZwQqqzZNHy7yT4MoL33TVMTSZv9CeEj+YSV3INurK2Eql+8G45 1 X-Google-Smtp-Source: AGHT+IGegNlXO2P09jbXfBd1koWZDdvARspbrVc60rIxJi2PiS5Zp443DDUq73rOIiYSjpH2gyvluQ== X-Received: by 2002:a05:6a20:2588:b0:1b1:d402:a93d with SMTP id adf61e73a8af0-1b2f9a54ba7mr6401803637.19.1717870420694; Sat, 08 Jun 2024 11:13:40 -0700 (PDT) Received: from [192.168.64.11] ([50.78.183.178]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2c29c21e48bsm5726709a91.19.2024.06.08.11.13.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 08 Jun 2024 11:13:40 -0700 (PDT) Message-ID: <70716d93-192a-4acf-ada4-9905c2b6e04d@linaro.org> Date: Sat, 8 Jun 2024 11:13:38 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 05/25] target/i386: change X86_ENTRYwr to use T0, use it for moves To: Paolo Bonzini , qemu-devel@nongnu.org References: <20240608084113.2770363-1-pbonzini@redhat.com> <20240608084113.2770363-6-pbonzini@redhat.com> Content-Language: en-US From: Richard Henderson In-Reply-To: <20240608084113.2770363-6-pbonzini@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::429; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x429.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 6/8/24 01:40, Paolo Bonzini wrote: > Just like X86_ENTRYr, X86_ENTRYwr is easily changed to use only T0. > In this case, the motivation is to use it for the MOV instruction > family. The case when you need to preserve the input value is the > odd one, as it is used basically only for BLS* instructions. > > Signed-off-by: Paolo Bonzini > --- > target/i386/tcg/decode-new.c.inc | 48 ++++++++++++++++---------------- > target/i386/tcg/emit.c.inc | 2 +- > 2 files changed, 25 insertions(+), 25 deletions(-) Reviewed-by: Richard Henderson r~