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 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 7A9ACC2BCA1 for ; Fri, 7 Jun 2019 16:40:45 +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 433082067C for ; Fri, 7 Jun 2019 16:40:45 +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="fsiY5JX9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 433082067C 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]:49496 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hZHv2-0006eo-Fp for qemu-devel@archiver.kernel.org; Fri, 07 Jun 2019 12:40:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:53530) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hZGzX-0003br-MX for qemu-devel@nongnu.org; Fri, 07 Jun 2019 11:41:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hZGzQ-0005b5-22 for qemu-devel@nongnu.org; Fri, 07 Jun 2019 11:41:17 -0400 Received: from mail-ot1-x344.google.com ([2607:f8b0:4864:20::344]:37210) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hZGzP-000589-5m for qemu-devel@nongnu.org; Fri, 07 Jun 2019 11:41:11 -0400 Received: by mail-ot1-x344.google.com with SMTP id r10so2263367otd.4 for ; Fri, 07 Jun 2019 08:40:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:openpgp:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=2RsYTjikDIBllqjsxDpwLY3KS0OnVC5h3YmgliOmuto=; b=fsiY5JX9Ut9XKy4cclv4LIwIj932JLx85nSXOjwcM1UPbvMNT0SsozRq+dLGNW3pJj Il4B0vk0LCe7APLRZtfgWVcTuMTPh1MfdBpnKggvhtbwyBXKHYG8KVXQSFaBWgnOEk2n hw8Xa3alwCZRB5FEqHFyFctgo+EWW8uzoCM0C6z2/lotn7hNWqt1VIvZb3B5U4HVKV8j wrW9eCevaWgKdpbFRq8DKUGzYr5ogeiff7ZP6rYZcft+2c9lqvFPr+hBolaoAwC0mQto M8UAoD/ezvQ+/9JxzPpKYPACY1a+BLmM4Fo5V1ZFwI5Q7bh34x+f8RlYFoasWm0l5/4A spoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:openpgp:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=2RsYTjikDIBllqjsxDpwLY3KS0OnVC5h3YmgliOmuto=; b=EqTcXn4Uv/Vq1LTAF/JpWYuEqyxKkjN0SfqxBsbtC/j+Gp3ygvNxUATvGPPw1sjs2R 4qPViR9bd+23+6ws9maGleq/vtbKLqXAgz5tJGclTQsaiB2Mr81Vr67r4ercBv+S/w38 T8oXNB1MCUEFLWVFNjf7x0XZgIDTNkxpAfEtAmINQE0B7WY7SUCwuBy+9BnsDGaDbwvz UAj43hGLxb8qJFEz86ipEh1NssMw42KKc8GcBfLiFTwLBay3nBQnwemPQhicdAWEU8uv 4ZGkHs5oocTAH7MePd8Ep4wEm1m+4s3rWMi38LMMA6VbbAkcjuGn9DUUK0caWnUgDLMn f2UQ== X-Gm-Message-State: APjAAAXZD91ZmtUAe3+D2FSHGmd2GSKy2Rd+RoUsuJfdTaudmCxNPPo9 b9jzHJo6SqZWgPmcsvdRcStf4QMVgBX2MA== X-Google-Smtp-Source: APXvYqw0KfC54mJ0dJXUMGc4Fj7mMQ+Qewsq753+LUs4leK+7WqafK1wgE0YKYPVRqDzTJSDOomBMg== X-Received: by 2002:a05:6830:1542:: with SMTP id l2mr19018062otp.241.1559922051276; Fri, 07 Jun 2019 08:40:51 -0700 (PDT) Received: from [192.168.3.43] (200-56-192-86-cable.cybercable.net.mx. [200.56.192.86]) by smtp.gmail.com with ESMTPSA id r65sm835026oif.31.2019.06.07.08.40.50 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 07 Jun 2019 08:40:50 -0700 (PDT) To: Peter Maydell References: <20190603232209.20704-1-richard.henderson@linaro.org> From: Richard Henderson Openpgp: preference=signencrypt Message-ID: <0a55f185-fb9f-335f-2342-9c214706a4d1@linaro.org> Date: Fri, 7 Jun 2019 10:40:48 -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: 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::344 Subject: Re: [Qemu-devel] [PATCH v2] target/arm: Vectorize USHL and SSHL 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: , Cc: QEMU Developers Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 6/7/19 9:54 AM, Peter Maydell wrote: > On Tue, 4 Jun 2019 at 00:22, Richard Henderson > wrote: >> >> These instructions shift left or right depending on the sign >> of the input, and 7 bits are significant to the shift. This >> requires several masks and selects in addition to the actual >> shifts to form the complete answer. >> >> That said, the operation is still a small improvement even for >> two 64-bit elements -- 13 vector operations instead of 2 * 7 >> integer operations. >> >> Signed-off-by: Richard Henderson >> --- > > Applied to target-arm.next, thanks. > > NB: in v1 this series had a second patch. I'm assuming you > dropped it deliberately -- if not, let me know. Oops, no. Can you please grab it with your r-b from v1? r~