From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 17548 invoked by alias); 22 May 2009 20:44:02 -0000 Received: (qmail 17513 invoked by alias); 22 May 2009 20:43:51 -0000 Date: Fri, 22 May 2009 20:44:00 -0000 Message-ID: <20090522204351.17512.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug tree-optimization/40087] [4.3/4.4 Regression] Number of iterations analysis wrong In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "rakdver 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: 2009-05/txt/msg01885.txt.bz2 ------- Comment #12 from rakdver at gcc dot gnu dot org 2009-05-22 20:43 ------- Subject: Bug 40087 Author: rakdver Date: Fri May 22 20:43:39 2009 New Revision: 147806 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=147806 Log: PR tree-optimization/40087 * tree-ssa-loop-niter.c (number_of_iterations_ne_max, number_of_iterations_ne): Rename never_infinite argument. (number_of_iterations_lt_to_ne, number_of_iterations_lt, number_of_iterations_le): Handle pointer-type ivs when exit_must_be_taken is false. (number_of_iterations_cond): Do not always assume that exit_must_be_taken if the control variable is a pointer. * gcc.dg/tree-ssa/pr40087.c: New test. Added: branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/tree-ssa/pr40087.c Modified: branches/gcc-4_4-branch/gcc/ChangeLog branches/gcc-4_4-branch/gcc/testsuite/ChangeLog branches/gcc-4_4-branch/gcc/tree-ssa-loop-niter.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40087