From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15068 invoked by alias); 2 Apr 2010 16:15:16 -0000 Received: (qmail 14696 invoked by uid 48); 2 Apr 2010 16:14:45 -0000 Date: Fri, 02 Apr 2010 16:15:00 -0000 Message-ID: <20100402161445.14695.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug middle-end/42509] [4.5 Regression] bootstrap failure in stage3 (integer overflow in preprocessor expression) In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "rguenth at gcc dot gnu dot org" Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2010-04/txt/msg00226.txt.bz2 ------- Comment #25 from rguenth at gcc dot gnu dot org 2010-04-02 16:14 ------- Ok, I reproduced the issue and comment #22 looks like the correct fix. merge_memattrs is doing the right thing, just nonoverlapping_memrefs_p conservative fallback for NULL MEM_OFFSET assumes DECLs are not offsetted with negative offsets - which is not true for the spill slot decl. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42509