From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13350 invoked by alias); 31 Jan 2002 01:13:24 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 13287 invoked from network); 31 Jan 2002 01:13:19 -0000 Received: from unknown (HELO mail.redhat.com) (12.107.208.239) by sources.redhat.com with SMTP; 31 Jan 2002 01:13:19 -0000 Received: from dot.sfbay.redhat.com (dot.sfbay.redhat.com [205.180.230.224]) by mail.redhat.com (8.11.6/8.8.7) with SMTP id g0V1DGC24513; Wed, 30 Jan 2002 20:13:16 -0500 Received: (from rth@localhost) by dot.sfbay.redhat.com (8.11.6/8.11.6) id g0V1DF009277; Wed, 30 Jan 2002 17:13:15 -0800 X-Authentication-Warning: dot.sfbay.redhat.com: rth set sender to rth@redhat.com using -f Date: Wed, 30 Jan 2002 19:31:00 -0000 From: Richard Henderson To: Ulrich Weigand Cc: greg@mcgary.org, gcc@gcc.gnu.org Subject: Re: condition codes, haifa-sched and virtual-stack-vars Message-ID: <20020130171315.C9254@redhat.com> Mail-Followup-To: Richard Henderson , Ulrich Weigand , greg@mcgary.org, gcc@gcc.gnu.org References: <200201302141.WAA17069@faui1a.informatik.uni-erlangen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <200201302141.WAA17069@faui1a.informatik.uni-erlangen.de>; from weigand@immd1.informatik.uni-erlangen.de on Wed, Jan 30, 2002 at 10:41:43PM +0100 X-SW-Source: 2002-01/txt/msg01965.txt.bz2 On Wed, Jan 30, 2002 at 10:41:43PM +0100, Ulrich Weigand wrote: > On s390, while we do have a load-address pattern, it is somewhat > restricted (e.g. it accepts only immediate offsets in the 0..4095 > range). I've tried to trick reload into using LA anyway, by > providing a generic 'add' pattern and splitters to massage the > result into a form acceptable by LA afterward. On i386 we have a peephole2 that converts lea to add if the flags register is dead. r~