From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55051) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WF2bw-0007wm-62 for qemu-devel@nongnu.org; Sun, 16 Feb 2014 09:22:32 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WF2bl-0002Hh-Rz for qemu-devel@nongnu.org; Sun, 16 Feb 2014 09:22:24 -0500 Received: from mail-qc0-x236.google.com ([2607:f8b0:400d:c01::236]:46852) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WF2bl-0002Hc-MB for qemu-devel@nongnu.org; Sun, 16 Feb 2014 09:22:13 -0500 Received: by mail-qc0-f182.google.com with SMTP id c9so22306694qcz.41 for ; Sun, 16 Feb 2014 06:22:13 -0800 (PST) Sender: Paolo Bonzini Message-ID: <5300C992.9010903@redhat.com> Date: Sun, 16 Feb 2014 15:22:10 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <1391179418-13422-1-git-send-email-rth@twiddle.net> <52FE8E39.3070303@twiddle.net> In-Reply-To: <52FE8E39.3070303@twiddle.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 0/5] tcg/i386 support for bmi List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Richard Henderson , qemu-devel@nongnu.org Cc: aurelien@aurel32.net Il 14/02/2014 22:44, Richard Henderson ha scritto: > Ping. > > On 01/31/2014 06:43 AM, Richard Henderson wrote: >> There are three separate architecture extensions for logical operations, >> BMI, BMI2, and TBM. The first two are supported on Intel Haswell and >> AMD Excavator, while slightly earlier AMD support only BMI and TBM. >> >> The following adds support for the interesting BMI and BMI2 instructions, >> where it is easy to do so. Most of the rest of the new instructions are >> irrelevant to TCG. >> >> When I added support for the ANDC opcode, I noticed some optimization >> regressions when looking at ppc64 guest dumps. I will address these >> in a separate patch set. Just a small comment on patch 5, everything else looks fine. Paolo