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 1F64AC433EF for ; Wed, 16 Mar 2022 20:32:26 +0000 (UTC) Received: from localhost ([::1]:54276 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nUaJl-0004rh-Gz for qemu-devel@archiver.kernel.org; Wed, 16 Mar 2022 16:32:25 -0400 Received: from eggs.gnu.org ([209.51.188.92]:60710) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nUaHd-0003BV-2g for qemu-devel@nongnu.org; Wed, 16 Mar 2022 16:30:13 -0400 Received: from [2607:f8b0:4864:20::22f] (port=35593 helo=mail-oi1-x22f.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nUaHb-0007bG-9c for qemu-devel@nongnu.org; Wed, 16 Mar 2022 16:30:12 -0400 Received: by mail-oi1-x22f.google.com with SMTP id e4so542321oif.2 for ; Wed, 16 Mar 2022 13:30:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=Xt69TVOEOAUb73bTVYhTRW0x3/X4pfT4znDF/toKFPI=; b=ApAK56pU29wRXTVpzZxUPJrC/mzPPVErhnINWWiHfIb9ERQJkYiRUwIrhlD7WiyYc8 zuUPb8BE+0dC5gHOwOXMs8bXshtP04oaJIXMT9wJ5euviZ8m2ncD0KQqkR9YtfS85pc8 BA2Zf5Dugx/cwchsHHJ0WjjCm4ygI/VHz83auOYQ2pz5Me6wnH0eSYoiVndJXxkcw6iM Lx++kBSn7nZG2h+7ZONlWroAOvjToELKQoSSL2N59rl3r6nUjNoJxY9sNkcRDtdekRU1 ZjQ1YrSOnQQHhXH5ecmWlvtxFnQfT30r2+ooZ1/JQ/Jc6V9ikyCXnQ1zBrXrZ07GNIpA pgwg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=Xt69TVOEOAUb73bTVYhTRW0x3/X4pfT4znDF/toKFPI=; b=L+YGK9SWDsWK9aCBzJTiUoCRrLv8qtqKFNaS8f4pOPlrc0mFxJe5gIPFfQ6WP0AyYW u5n5CDawOztBupcHFPIWcR0T4E5TiycAKi2+xDyGGzDftxI3/qYlDy0Bnuf7y7PQ6Tdn jhiFWxvBqiWfEzdQPpwYOc92yYzIGAxFsmcSSw24YMxcKKcug+zz8A9u4Q95OMxg1TXC yRHZfaLncYV0nO+DjSYN/TxDzV6Q6+PjLAyZ10UUszDEC8iT2omjSbJGuPNbCqqLf22u ITX0oN9sTvk6/UttnAsDRxJvu/W+/tAQXK13Ds0jWeuwVOOhn52jo2iHG8WYBt6x3Xsv mkLw== X-Gm-Message-State: AOAM530aiq2veBYdq5CtcsyWGBEbmY9X5XkuLf+O+iY1GCoX+ZJ6Q0/+ J4Sh4AewYXO22YWnjCZVOVj/kQ== X-Google-Smtp-Source: ABdhPJwBv3gDzeENpp6xpPKns3dF8WTHD58YQMkdWAm5H96FJ+N28tRGQmltppLwWE1kk8VQ7UqicA== X-Received: by 2002:a05:6808:3dc:b0:2ed:5bc:4c66 with SMTP id o28-20020a05680803dc00b002ed05bc4c66mr570304oie.121.1647462604522; Wed, 16 Mar 2022 13:30:04 -0700 (PDT) Received: from ?IPV6:2607:fb90:2823:9a18:3a12:c6b0:a7fe:e853? ([2607:fb90:2823:9a18:3a12:c6b0:a7fe:e853]) by smtp.gmail.com with ESMTPSA id 4-20020a056870004400b000dabe0c435bsm1246272oaz.7.2022.03.16.13.30.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 16 Mar 2022 13:30:04 -0700 (PDT) Message-ID: <6e407910-90f2-2d3a-d3f2-32b7f83d97b5@linaro.org> Date: Wed, 16 Mar 2022 13:29:57 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH] target/ppc: Replicate Double->Single-Precision result Content-Language: en-US To: Lucas Coutinho , qemu-devel@nongnu.org, qemu-ppc@nongnu.org References: <20220316200427.3410437-1-lucas.coutinho@eldorado.org.br> From: Richard Henderson In-Reply-To: <20220316200427.3410437-1-lucas.coutinho@eldorado.org.br> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::22f (failed) Received-SPF: pass client-ip=2607:f8b0:4864:20::22f; envelope-from=richard.henderson@linaro.org; helo=mail-oi1-x22f.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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=-0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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: , Cc: groug@kaod.org, danielhb413@gmail.com, matheus.ferst@eldorado.org.br, clg@kaod.org, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 3/16/22 13:04, Lucas Coutinho wrote: > Power ISA v3.1 formalizes the previously undefined result in > words 1 and 3 to be a copy of the result in words 0 and 2. > > This affects: xvcvsxdsp, xvcvuxdsp, xvcvdpsp. > > And the previously undefined result in word 1 to be a copy of > the result in word 0. > > This affects: xscvdpsp. > > Signed-off-by: Lucas Coutinho > --- > This patch is a follow-up of: > https://lists.gnu.org/archive/html/qemu-ppc/2022-03/msg00354.html > which have the same behavior of the instructions altered > --- > target/ppc/fpu_helper.c | 48 +++++++++++++++++++++++++++++++++++++---- > 1 file changed, 44 insertions(+), 4 deletions(-) Reviewed-by: Richard Henderson I had a brief look for other cases, but I guess I should have looked harder. Thanks for the follow-up. r~