From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2166 invoked by alias); 28 Jan 2015 11:42:22 -0000 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 Received: (qmail 2034 invoked by uid 55); 28 Jan 2015 11:42:19 -0000 From: "ienkovich at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/64277] [4.9 Regression] Incorrect warning "array subscript is above array bounds" Date: Wed, 28 Jan 2015 11:42:00 -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-Version: 4.9.3 X-Bugzilla-Keywords: diagnostic X-Bugzilla-Severity: normal X-Bugzilla-Who: ienkovich 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: 4.9.3 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-01/txt/msg03215.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64277 --- Comment #18 from ienkovich at gcc dot gnu.org --- Author: ienkovich Date: Wed Jan 28 11:41:40 2015 New Revision: 220204 URL: https://gcc.gnu.org/viewcvs?rev=220204&root=gcc&view=rev Log: gcc/ PR tree-optimization/64277 * tree-ssa-loop-niter.c (record_nonwrapping_iv): Use base range info when possible to refine estimation. gcc/testsuite/ PR tree-optimization/64277 * gcc.dg/pr64277.c: New. Added: trunk/gcc/testsuite/gcc.dg/pr64277.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-loop-niter.c