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 X-Spam-Level: X-Spam-Status: No, score=-9.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9833DC433E6 for ; Fri, 28 Aug 2020 23:03:05 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 5CA722086A for ; Fri, 28 Aug 2020 23:03:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="Ajhzkvjm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5CA722086A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55664 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kBnOi-0005DJ-KP for qemu-devel@archiver.kernel.org; Fri, 28 Aug 2020 19:03:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50412) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kBnOA-0004eJ-Jz for qemu-devel@nongnu.org; Fri, 28 Aug 2020 19:02:30 -0400 Received: from mail-pf1-x441.google.com ([2607:f8b0:4864:20::441]:34309) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kBnO8-0003yH-3l for qemu-devel@nongnu.org; Fri, 28 Aug 2020 19:02:30 -0400 Received: by mail-pf1-x441.google.com with SMTP id g207so1389234pfb.1 for ; Fri, 28 Aug 2020 16:02:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=WHPbtsXjB8fAKSE91w0G2VmJKRHKkzNuc2WxO+7mGwA=; b=AjhzkvjmXdkW9COPv05gLujnnVgxJdx3Xykesx9ZGRicliduNJoPlvIZzqAUQ2lqeh MciPTII0JFXzKk2gAbq70xkfiUrYA44jJpOpJkyxq9yP+TxdQta72kKStTzjIA2Z+3fy demkDUkHJdgt83MbCVVUyuLQRjHiNWAufvqrizA14C5k1+UjoudZQqPpIl1zFkxQsaHn rqt1pkhgNt+aHmuvVpjkk3r7JcxQ3XHu821SSBknsueJp7+jkr2dv4E1ImU9if5eXu4Y HomFUrzRygtMG+SXjZF8m+idBcG+wP09p/aGE5RI+/ihzY/CA4A9aISpLZkXClzOdyet MC0Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=WHPbtsXjB8fAKSE91w0G2VmJKRHKkzNuc2WxO+7mGwA=; b=YOi1LG5voVq/jYNunOSooyLLN/0D3CJ+gCT1M55o+5ueBW4PFy270f7pR+Efdzz68g UlbFG4lS2t5U7sSyx5kQK2LZjSn8l/YB7jZ6VwECTt+GVe9ICZhAtbEWL/PdghGff7fC tHnG45En1bP5ghBdjhSKGf2Qkp5TiXaD1Qt7z+xGVCWXIALeFg1wM9OupBcJuLjEeSQ3 fAUTi5nyrFA43efUOyfwb3o2vtAlJHCgRoY1tC/CHLoaSnddZ7vuCo025Rbj9hPG1Teq 7fAcDJ0kN2qi9F07AVTsUqANCSzJDcU7wk0IEhgAmg+5YnglXc7EhXRGE6zdbWajQq7M 5M4w== X-Gm-Message-State: AOAM5317NtHABs5/IJ+YlnmUCRq+vf9HK8WRBUjvb+yiSRilt6y7Rz8x SKaSYT9K2pqbgDKEQGVqS+Xvvh+WJzub5g== X-Google-Smtp-Source: ABdhPJyMjnWtwKz6j9NLBA2yxfnBGwQVs8NGWpH40nlpRy7EVlHy2ltKmEYj/FWl758eUKkb+5/KCQ== X-Received: by 2002:a63:1a0c:: with SMTP id a12mr742428pga.24.1598655746414; Fri, 28 Aug 2020 16:02:26 -0700 (PDT) Received: from [192.168.1.11] ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id n22sm333824pjq.25.2020.08.28.16.02.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Aug 2020 16:02:25 -0700 (PDT) Subject: Re: [PATCH v2 33/45] target/arm: Implement fp16 for Neon VRECPS To: Peter Maydell , qemu-arm@nongnu.org, qemu-devel@nongnu.org References: <20200828183354.27913-1-peter.maydell@linaro.org> <20200828183354.27913-34-peter.maydell@linaro.org> From: Richard Henderson Message-ID: <25897cee-58e9-a114-b6ce-7705901a724c@linaro.org> Date: Fri, 28 Aug 2020 16:02:23 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200828183354.27913-34-peter.maydell@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::441; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x441.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 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, NICE_REPLY_A=-0.809, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 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" On 8/28/20 11:33 AM, Peter Maydell wrote: > Convert the Neon VRECPS insn to using a gvec helper, and > use this to implement the fp16 case. > > The phrasing of the new float32_recps_nf() is slightly different from > the old recps_f32() so that it parallels the f16 version; for f16 we > can't assume that flush-to-zero is always enabled. > > Signed-off-by: Peter Maydell > --- > target/arm/helper.h | 4 +++- > target/arm/vec_helper.c | 31 +++++++++++++++++++++++++++++++ > target/arm/vfp_helper.c | 13 ------------- > target/arm/translate-neon.c.inc | 21 +-------------------- > 4 files changed, 35 insertions(+), 34 deletions(-) Reviewed-by: Richard Henderson r~