[From nobody Tue Aug 16 11:31:09 2011 Return-Path: pypy-dev-bounces+dmalcolm=redhat.com@python.org Received: from zmta03.collab.prod.int.phx2.redhat.com (LHLO zmta03.collab.prod.int.phx2.redhat.com) (10.5.5.33) by mail02.corp.redhat.com with LMTP; Tue, 16 Aug 2011 07:58:17 -0400 (EDT) Received: from localhost (localhost.localdomain [127.0.0.1]) by zmta03.collab.prod.int.phx2.redhat.com (Postfix) with ESMTP id 6EE95F1421 for <dmalcolm@redhat.com>; Tue, 16 Aug 2011 07:58:17 -0400 (EDT) Authentication-Results: zmta03.collab.prod.int.phx2.redhat.com (amavisd-new); dkim=pass header.i=@python.org Received: from zmta03.collab.prod.int.phx2.redhat.com ([127.0.0.1]) by localhost (zmta03.collab.prod.int.phx2.redhat.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id t4AImA6YGG88 for <dmalcolm@redhat.com>; Tue, 16 Aug 2011 07:58:17 -0400 (EDT) Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by zmta03.collab.prod.int.phx2.redhat.com (Postfix) with ESMTP id 57A26F1408 for <dmalcolm@mail.corp.redhat.com>; 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Tue, 16 Aug 2011 13:57:46 +0200 (CEST) X-Spam-Status: OK 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'pointer': 0.05; 'received:134': 0.05; 'tests,': 0.07; 'descriptor': 0.09; 'header :In-reply-to:1': 0.09; 'libffi': 0.09; 'pointer.': 0.09; 'def': 0.15; 'heavily': 0.15; 'static': 0.15; '[])': 0.16; 'armin': 0.16; 'backend.': 0.16; 'coerced': 0.16; 'descriptors,': 0.16; 'failing': 0.16; 'pointers.': 0.16; 'should.': 0.16; 'simplified': 0.16; 'testcase': 0.16; 'wrote:': 0.16; 'linux': 0.17; 'thanks,': 0.18; 'cc:no real name:2**0': 0.20; 'linux,': 0.21; 'stuff': 0.22; 'cc:2**0': 0.22; 'incorrect': 0.23; 'talked': 0.23; 'pm,': 0.24; 'code': 0.25; 'tests': 0.25; 'load': 0.26; 'function': 0.27; 'bit': 0.28; 'problem': 0.28; 'cc:addr:python.org': 0.30; 'addresses.': 0.31; 'adds': 0.32; 'does': 0.32; 'it.': 0.33; "can't": 0.33; 'there': 0.33; 'header:User-Agent:1': 0.34; 'test': 0.34; 'backend': 0.34; 'david': 0.35; 'uses': 0.35; 'object': 0.35; 'another': 0.37; 'machine': 0.37; 'patch': 0.38; 'some': 0.38; 'subject:: ': 0.39; 'received:192': 0.39; 'data': 0.39; 'agreed': 0.40; "it's": 0.40; 'your': 0.61; 'address': 0.61; 'ppc': 0.67; 'discovered': 0.68; 'address,': 0.72; 'typos': 0.84 Received: from localhost (HELO mail.python.org) (127.0.0.1) by albatross.python.org with SMTP; 16 Aug 2011 13:57:46 +0200 Received: from mail.rz.uni-duesseldorf.de (mailout-apollo.uni-duesseldorf.de [134.99.128.36]) by mail.python.org (Postfix) with ESMTP for <pypy-dev@python.org>; Tue, 16 Aug 2011 13:57:46 +0200 (CEST) MIME-version: 1.0 Received: from [192.168.4.252] (fwstups.cs.uni-duesseldorf.de [134.99.112.66]) by mail.rz.uni-duesseldorf.de (Sun Java(tm) System Messaging Server 6.3-11.01 (built Feb 12 2010; 32bit)) with ESMTPA id <0LQ0002FRRW4EJ50@mail.rz.uni-duesseldorf.de> for pypy-dev@python.org; Tue, 16 Aug 2011 13:57:40 +0200 (MEST) Message-id: <4E4A5B34.9010607@uni-duesseldorf.de> Date: Tue, 16 Aug 2011 13:57:40 +0200 From: Sven Hager <Sven.Hager@uni-duesseldorf.de> User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.18) Gecko/20110617 Thunderbird/3.1.11 To: David Edelsohn <dje.gcc@gmail.com> References: <CAGWvnykpGnB8n6WyudteXussnafTGpPwQhOEGytMUg_aNJBh9Q@mail.gmail.com> In-reply-to: <CAGWvnykpGnB8n6WyudteXussnafTGpPwQhOEGytMUg_aNJBh9Q@mail.gmail.com> Cc: pypy-dev@python.org Subject: Re: [pypy-dev] PPC64 JIT progress X-BeenThere: pypy-dev@python.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: development of the PyPy Python implementation <pypy-dev.python.org> List-Unsubscribe: <http://mail.python.org/mailman/options/pypy-dev>, <mailto:pypy-dev-request@python.org?subject=unsubscribe> List-Archive: <http://mail.python.org/pipermail/pypy-dev> List-Post: <mailto:pypy-dev@python.org> List-Help: <mailto:pypy-dev-request@python.org?subject=help> List-Subscribe: <http://mail.python.org/mailman/listinfo/pypy-dev>, <mailto:pypy-dev-request@python.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: pypy-dev-bounces+dmalcolm=redhat.com@python.org Errors-To: pypy-dev-bounces+dmalcolm=redhat.com@python.org X-RedHat-Spam-Score: -1.773 (DKIM_SIGNED,DKIM_VALID,RCVD_IN_DNSWL_LOW,RP_MATCHES_RCVD) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Scanned-By: MIMEDefang 2.68 on 10.5.110.17 Content-Transfer-Encoding: 7bit On 08/15/2011 07:12 PM, David Edelsohn wrote: > Attached is the next patch for the PPC JIT backend. > > The patch adds shift-left simplified mnemonic (sldi) and a load > doubleword (load_dword) function that uses it. > > I also discovered some typos in my previous patch to ppc_field.py. > > Currently every PPC JIT testcase fails on PPC64 Linux because the PPC > backend makes an incorrect assumption about function pointers. PPC64 > Linux function pointer point to function descriptors, not code > addresses. PPC64 Linux libffi knows this, which makes > > def get_function(self): > i = self.code.materialize(AsmMemoryManager(), []) > t = lltype.FuncType([], lltype.Signed) > return rffi.cast(lltype.Ptr(t), i) > > wrong for PPC64. > > A function descriptor is a three-word data vector containing the > function address, data addressibility pointer and static chain. For > some of the tests to start working on PPC64 Linux, the backend needs > to create another data object that contains the function address and > that pointer is coerced into a function pointer. > > Thanks, David Hello David, I added your latest patch to the codebase. I talked with Armin about the problem with the failing tests, and we agreed that for now it's the best approach to implemented stuff for a 32 bit machine until there is a possibility to test on a 64 bit machine. The problem is that until I can't test the implemented 64 bit functionality I heavily doubt that I am able to write code that does what it should. ;) Best regards, Sven _______________________________________________ pypy-dev mailing list pypy-dev@python.org http://mail.python.org/mailman/listinfo/pypy-dev ]