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=-3.8 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 AB8D9C28CC5 for ; Sat, 8 Jun 2019 19:58:16 +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 65804208E3 for ; Sat, 8 Jun 2019 19:58:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="FBc0s2QJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 65804208E3 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]:60266 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hZhTi-0006PK-FO for qemu-devel@archiver.kernel.org; Sat, 08 Jun 2019 15:58:14 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38277) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hZh2d-0000Nz-Df for qemu-devel@nongnu.org; Sat, 08 Jun 2019 15:30:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hZh2b-0008Nl-6j for qemu-devel@nongnu.org; Sat, 08 Jun 2019 15:30:15 -0400 Received: from mail-oi1-x244.google.com ([2607:f8b0:4864:20::244]:35034) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hZh2a-0008N0-U4 for qemu-devel@nongnu.org; Sat, 08 Jun 2019 15:30:13 -0400 Received: by mail-oi1-x244.google.com with SMTP id y6so3722323oix.2 for ; Sat, 08 Jun 2019 12:30:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:references:from:openpgp:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=eFc3z5Zi2+P0zeUhuGfQxDe3HZ7k941fCcKiMMtRH/k=; b=FBc0s2QJHCRxomeQd3ePhmcKASoj9tujP0O65W1/0EjTa43INgOy83QFNfE0uCchDT EDr2sLPn/pKH7MrJ9C85WNcGOv1SWOOu6Ezkm9/Zgbpilt17CljUdH7ETT/wfG785sFB mo7qppQJ/vxaA3eefnghv3njVSjRTgZGNVNuHPLGLYy+bCst8IKyPHUVeIJFdgfAE5lH 0uqQLTT535oXzCX7fvW2B5U3QzvVXjVptvleA2P+CtThSf+hz9Nb0IyNYi8FAtiVimnI kpnIglCbFIdzjxN9EAPztbH1Qt8oS+7uSqBmOwiwNlUjgTUNspdhctUw7IBp3uBldNhI MfiQ== 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:openpgp:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=eFc3z5Zi2+P0zeUhuGfQxDe3HZ7k941fCcKiMMtRH/k=; b=S5HGaIWKeT2URA5XOA4LlAaHUR/Qy5uCEOLbrAxIsq1Xr3wpDyrh0259XCMa7v5fso AnxyHYwMlR3Gc016syN8GQkIU+hLNOtTD+2MhHJ1s4heV2dkE8iwvtwu8u3RIfp5FDLt 9EwcRfqhuiUcDb+1zCRCDl+eiT6TfBqVs+7xXaBys3rVGR7z1iGNGsfAkcdZwW4JSpdD Y9Krqsxft1rSV4P6Vddok65hFKjG6RN2I9doNtvrfG3vslYWFTksu7hEnn5aFhdZ5omi LaKRNoqDPBtlICbvSqZTDv2KoqbzEh+4d8Ha9Xx1Y76cEErd5gFoeNuyFPVw0nJy4Qrg 7IEw== X-Gm-Message-State: APjAAAWOeX9J93329FZhj88WO9tf2nW3AwW8bfDJwOcJVuyPYCKemmIE smmsMPlqxus+ivOxOk8VFvxRZVPLW4PUQA== X-Google-Smtp-Source: APXvYqw9feNtyeJMSFzRMeJx0zAzjY753mAF6jHNnDwEFJ5BpDn3zLhdtVukOZqdZe41HxcZn4gzfA== X-Received: by 2002:aca:b456:: with SMTP id d83mr7918848oif.177.1560022211814; Sat, 08 Jun 2019 12:30:11 -0700 (PDT) Received: from [10.219.49.199] ([187.217.230.84]) by smtp.gmail.com with ESMTPSA id o32sm2255158ota.37.2019.06.08.12.30.08 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 08 Jun 2019 12:30:11 -0700 (PDT) To: Peter Maydell , qemu-arm@nongnu.org, qemu-devel@nongnu.org References: <20190606174609.20487-1-peter.maydell@linaro.org> <20190606174609.20487-36-peter.maydell@linaro.org> From: Richard Henderson Openpgp: preference=signencrypt Message-ID: Date: Sat, 8 Jun 2019 14:10:12 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20190606174609.20487-36-peter.maydell@linaro.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::244 Subject: Re: [Qemu-devel] [PATCH 35/42] target/arm: Convert the VCVT-to-f16 insns to decodetree 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 6/6/19 12:46 PM, Peter Maydell wrote: > Convert the VCVTT and VCVTB instructions which convert from > f32 and f64 to f16 to decodetree. > > Since we're no longer constrained to the old decoder's style > using cpu_F0s and cpu_F0d we can perform a direct 16 bit > store of the right half of the input single-precision register > rather than doing a load/modify/store sequence on the full > 32 bits. > > Signed-off-by: Peter Maydell > --- > target/arm/translate-vfp.inc.c | 62 ++++++++++++++++++++++++++ > target/arm/translate.c | 79 +--------------------------------- > target/arm/vfp.decode | 6 +++ > 3 files changed, 69 insertions(+), 78 deletions(-) Reviewed-by: Richard Henderson r~