From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28538 invoked by alias); 31 Mar 2006 22:41:09 -0000 Received: (qmail 28522 invoked by uid 22791); 31 Mar 2006 22:41:07 -0000 X-Spam-Check-By: sourceware.org Received: from knife.dreamhost.com (HELO knife.dreamhost.com) (66.33.219.6) by sourceware.org (qpsmtpd/0.31) with ESMTP; Fri, 31 Mar 2006 22:41:06 +0000 Received: from [192.168.1.116] (c-69-139-157-130.hsd1.md.comcast.net [69.139.157.130]) by knife.dreamhost.com (Postfix) with ESMTP id 25438FAF7D; Fri, 31 Mar 2006 14:41:04 -0800 (PST) Subject: Re: [Bug tree-optimization/26944] [4.1/4.2 Regression] -ftree-ch generates worse code From: Daniel Berlin To: gcc-bugzilla@gcc.gnu.org Cc: gcc-bugs@gcc.gnu.org In-Reply-To: <20060330164310.31125.qmail@sourceware.org> References: <20060330164310.31125.qmail@sourceware.org> Content-Type: text/plain Date: Fri, 31 Mar 2006 22:41:00 -0000 Message-Id: <1143844862.7703.0.camel@linux.site> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2006-03/txt/msg03111.txt.bz2 List-Id: > Compare pretmp.28_49 with pretmp.32_11, why are the arguments in a different > order? Is there something unstable in the PRE algorithm? > No, we just call fold on the expressions we build, and whatever it gives us, we use :)