From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2002 invoked by alias); 29 Apr 2005 20:37:15 -0000 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 Received: (qmail 1978 invoked by uid 48); 29 Apr 2005 20:37:11 -0000 Date: Fri, 29 Apr 2005 20:37:00 -0000 Message-ID: <20050429203711.1977.qmail@sourceware.org> From: "dberlin at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20050429191405.21289.kazu@cs.umass.edu> References: <20050429191405.21289.kazu@cs.umass.edu> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug tree-optimization/21289] A numeric range is spoiled by a symblic one in VRP X-Bugzilla-Reason: CC X-SW-Source: 2005-04/txt/msg04150.txt.bz2 List-Id: ------- Additional Comments From dberlin at gcc dot gnu dot org 2005-04-29 20:37 ------- (In reply to comment #1) > Confirmed, to me if the range of a variable is not really a range but one value, it should always merge. I > think that is safe. It's only safe if both old ranges dominate the new range, as it does here. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21289