From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28189 invoked by alias); 5 Feb 2013 12:54:39 -0000 Received: (qmail 28135 invoked by uid 55); 5 Feb 2013 12:54:19 -0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/54767] [4.7 Regression] Incorrect code generated with "-O2 -fcheck=bounds" Date: Tue, 05 Feb 2013 12:54:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.7.3 X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 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: 2013-02/txt/msg00385.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54767 --- Comment #13 from Richard Biener 2013-02-05 12:54:17 UTC --- Author: rguenth Date: Tue Feb 5 12:54:12 2013 New Revision: 195754 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195754 Log: 2013-02-05 Richard Biener PR tree-optimization/54767 * tree-vrp.c (vrp_visit_phi_node): For PHI arguments coming via backedges drop all symbolical range information. (execute_vrp): Compute backedges. * gfortran.fortran-torture/execute/pr54767.f90: New testcase. Added: branches/gcc-4_7-branch/gcc/testsuite/gfortran.fortran-torture/execute/pr54767.f90 Modified: branches/gcc-4_7-branch/gcc/ChangeLog branches/gcc-4_7-branch/gcc/testsuite/ChangeLog branches/gcc-4_7-branch/gcc/tree-vrp.c