From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 522 invoked by alias); 15 Apr 2010 13:47:24 -0000 Received: (qmail 406 invoked by alias); 15 Apr 2010 13:47:02 -0000 Date: Thu, 15 Apr 2010 13:47:00 -0000 Message-ID: <20100415134702.405.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/43627] [4.5 Regression] slow compilation (tree canonical iv takes 75%) 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/msg01470.txt.bz2 ------- Comment #21 from rguenth at gcc dot gnu dot org 2010-04-15 13:47 ------- Subject: Bug 43627 Author: rguenth Date: Thu Apr 15 13:46:42 2010 New Revision: 158377 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158377 Log: 2010-04-15 Richard Guenther PR tree-optimization/43627 * tree-vrp.c (extract_range_from_unary_expr): Widenings of [1, +INF(OVF)] go to [1, +INF(OVF)] of the wider type, not varying. * gcc.dg/tree-ssa/vrp49.c: New testcase. Added: branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/tree-ssa/vrp49.c Modified: branches/gcc-4_5-branch/gcc/ChangeLog branches/gcc-4_5-branch/gcc/testsuite/ChangeLog branches/gcc-4_5-branch/gcc/tree-vrp.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43627