From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9525 invoked by alias); 17 Jan 2003 22:46:29 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 9518 invoked from network); 17 Jan 2003 22:46:26 -0000 Received: from unknown (HELO mx1.redhat.com) (66.187.233.31) by sources.redhat.com with SMTP; 17 Jan 2003 22:46:26 -0000 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.11.6/8.11.6) with ESMTP id h0HMHoB01198; Fri, 17 Jan 2003 17:17:50 -0500 Received: from localhost.redhat.com (vpnuser6.stuttgart.redhat.com [172.16.4.6]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id h0HMkBa32425; Fri, 17 Jan 2003 17:46:11 -0500 Received: from redhat.com (law@localhost) by localhost.redhat.com (8.12.5/8.12.5/Submit) with ESMTP id h0HMn7vc016524; Fri, 17 Jan 2003 15:49:20 -0700 Message-Id: <200301172249.h0HMn7vc016524@localhost.redhat.com> X-Authentication-Warning: localhost.redhat.com: law owned process doing -bs To: Roger Sayle cc: Jan Hubicka , gcc-patches@gcc.gnu.org Reply-To: law@redhat.com Subject: Re: [PATCH] Fix RTL sharing problem in CSE In-Reply-To: Your message of "Fri, 17 Jan 2003 11:39:05 MST." From: law@redhat.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 17 Jan 2003 22:46:00 -0000 X-SW-Source: 2003-01/txt/msg01261.txt.bz2 In message , Roger Sa yle writes: >I believe that the problems on hppa64 and powerpc will turn out to >be more latent bugs in the existing GCSE or CSE constant propagation >code, just like the one in cse_insn that it has already uncovered >on H8300. I agree completely. It's worth noting that the code we're tripping in the PA backend is notoriously flakey -- even more so for PA64. If it wasn't such a huge win to use xmpyu I'd suggest we drop the damn thing. Jeff