From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 10605 invoked by alias); 19 Dec 2009 19:41:00 -0000 Received: (qmail 10533 invoked by uid 48); 19 Dec 2009 19:40:43 -0000 Date: Sat, 19 Dec 2009 19:41:00 -0000 Subject: [Bug tree-optimization/42436] New: VRP should mark non-trapping integer divisions X-Bugzilla-Reason: CC Message-ID: 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: 2009-12/txt/msg01929.txt.bz2 In PR42108 a division is found to be non-trapping by VRP but neither PRE nor LIM can make use of that information (well, because VRP doesn't mark the divisions in any meaningful way). -- Summary: VRP should mark non-trapping integer divisions Product: gcc Version: 4.5.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: enhancement Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rguenth at gcc dot gnu dot org OtherBugsDependingO 42108 nThis: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42436