From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1DYpb8-00013L-PM for qemu-devel@nongnu.org; Thu, 19 May 2005 14:18:19 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1DYpb5-000125-QQ for qemu-devel@nongnu.org; Thu, 19 May 2005 14:18:15 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1DYpb5-000122-ML for qemu-devel@nongnu.org; Thu, 19 May 2005 14:18:15 -0400 Received: from [64.233.184.204] (helo=wproxy.gmail.com) by monty-python.gnu.org with esmtp (Exim 4.34) id 1DYpfa-0004kC-Bb for qemu-devel@nongnu.org; Thu, 19 May 2005 14:22:54 -0400 Received: by wproxy.gmail.com with SMTP id 71so796835wra for ; Thu, 19 May 2005 11:14:20 -0700 (PDT) Message-ID: Date: Thu, 19 May 2005 20:14:20 +0200 From: Thomas Steffen Subject: Re: [Qemu-devel] [patch] gcc4 host support In-Reply-To: <200505191644.54916.paul@codesourcery.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <200505191420.16777.paul@codesourcery.com> <200505191644.54916.paul@codesourcery.com> Reply-To: Thomas Steffen , qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On 5/19/05, Paul Brook wrote: > I don't think GNU lightning really gains us much. We'd still have to do t= he > hard bits (optimization, register allocation, assigning stack slots, etc)= . > The actual native code generation (which is what lightning gives you) is = only > a few hundred lines of code. I have the feeling that will apply to most alternatives. The problem is to turn the C code into machine code, right? That is a difficult problem, which is why a C compiler is a complex piece of software. Using a different tool is not going to turn it into a simple problem. So I think gcc is still the best bet. If the issue with the return point is the only problem, there should be several possible solution (with different performance impact). Thomas