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 E1C38C25B67 for ; Mon, 23 Oct 2023 23:02:21 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qv3w7-0000FJ-Tx; Mon, 23 Oct 2023 19:02:15 -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 1qv3w6-0000Es-Cy for qemu-devel@nongnu.org; Mon, 23 Oct 2023 19:02:14 -0400 Received: from mail-pj1-x102a.google.com ([2607:f8b0:4864:20::102a]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qv3w4-0003p4-Pd for qemu-devel@nongnu.org; Mon, 23 Oct 2023 19:02:14 -0400 Received: by mail-pj1-x102a.google.com with SMTP id 98e67ed59e1d1-27d3ede72f6so3382984a91.1 for ; Mon, 23 Oct 2023 16:02:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1698102129; x=1698706929; darn=nongnu.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=y9PYANdOg5z7Qq+Ec1Bb8Oa/zNaKlSLWGQd3rN1X6/g=; b=zzHJc07hjMcT7Dztn7dXLNRNtsgGGgxhHsXIWxxQO9dSJpsnU7Z++6+ytelIHttXTd exMUSISQeaJSTzWXdD6ejjPGL2sr1uA5up8qjW0al89E+iSkQVPu+8k09DiyrPcarZPL w36JCg1MXnOcxdFwQH7LBXeYDGT0dMsChMW4m/6AQFXiLZHEeGWAWLMjeNq4y+WqLDIA zC3sj3bYmyJY59IKPwdRf3njNoXPNBj2fkzNP9AT6jt/KlHa944Ud0FAPnkBVS3thivh 4gCiU6o9EVq6TDZkgdXM5LL+ee9Wf+PR2+9LgeZp1W49vfgTvNetjEIa5WzqbloUtEFD RdDw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698102129; x=1698706929; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=y9PYANdOg5z7Qq+Ec1Bb8Oa/zNaKlSLWGQd3rN1X6/g=; b=Om58cZrFd/rereS+5hC2P9ODAFnaAC0H6Ih7O6NCWyjibfPVb7bZkxvS8YVfzaTAfR qaePrNfsQiCm9i68uGaxzFXgA0J8j7WONgCHyj1l3rEgEWb1GclqmKpM9U8J3bz5R1sX /mWTLh0jOHz8+qa3oe4xqGPRr2w8ME6g+1ZNC5DKBeAMJhYhKKRaUFltPDbGDAmCqpqt r2kf27J45D2Avg5H6CsPZf62LDg7zl3TrSEdiR6Kw+PGUi48EKoyLN0qn213hwS71nWk F1lwJoj8mbKR2VC0DHgR5DBDpXh45NXWrnXLrPDQzVwqHCvULgzoCjSRLSAYxl3jknA6 AXXQ== X-Gm-Message-State: AOJu0YwR2hBmaT1Ol4zHXZnZLt/1sLYBIh6T0xAbdydGDj1o56o+N1JI aHec0jv2cnabWOqnbmQHcJFWqg== X-Google-Smtp-Source: AGHT+IG1Ifq1fydweoUX6n7rKmKlzz+O/i9xZQo8u70YdbnuHnmMgThvsexkBtdkeMNRJAsVBEdJVg== X-Received: by 2002:a17:90a:194:b0:27d:5964:4ef0 with SMTP id 20-20020a17090a019400b0027d59644ef0mr10954890pjc.10.1698102129224; Mon, 23 Oct 2023 16:02:09 -0700 (PDT) Received: from [192.168.0.4] ([71.212.149.95]) by smtp.gmail.com with ESMTPSA id ga8-20020a17090b038800b0027d0af2e9c3sm8106910pjb.40.2023.10.23.16.02.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 23 Oct 2023 16:02:08 -0700 (PDT) Message-ID: <599d17bf-65c5-4728-bcc3-aa8b058e8af5@linaro.org> Date: Mon, 23 Oct 2023 16:02:07 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 4/5] target/loongarch: Add estimated reciprocal instructions Content-Language: en-US To: Jiajie Chen , qemu-devel@nongnu.org Cc: gaosong@loongson.cn, git@xen0n.name References: <20231023153029.269211-2-c@jia.je> <20231023153029.269211-6-c@jia.je> From: Richard Henderson In-Reply-To: <20231023153029.269211-6-c@jia.je> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::102a; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102a.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 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 10/23/23 08:29, Jiajie Chen wrote: > Add the following new instructions in LoongArch v1.1: > > - frecipe.s > - frecipe.d > - frsqrte.s > - frsqrte.d > - vfrecipe.s > - vfrecipe.d > - vfrsqrte.s > - vfrsqrte.d > - xvfrecipe.s > - xvfrecipe.d > - xvfrsqrte.s > - xvfrsqrte.d > > They are guarded by CPUCFG2.FRECIPE. Altought the instructions allow > implementation to improve performance by reducing precision, we use the > existing softfloat implementation. > > Signed-off-by: Jiajie Chen > --- > target/loongarch/cpu.h | 1 + > target/loongarch/disas.c | 12 ++++++++++++ > target/loongarch/insn_trans/trans_farith.c.inc | 4 ++++ > target/loongarch/insn_trans/trans_vec.c.inc | 8 ++++++++ > target/loongarch/insns.decode | 12 ++++++++++++ > target/loongarch/translate.h | 6 ++++++ > 6 files changed, 43 insertions(+) Acked-by: Richard Henderson r~