From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11595 invoked by alias); 11 May 2005 08:15:13 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 11442 invoked by alias); 11 May 2005 08:15:07 -0000 Date: Wed, 11 May 2005 08:15:00 -0000 Message-ID: <20050511081507.11441.qmail@sourceware.org> From: "cvs-commit at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20050207172116.19807.rguenth@gcc.gnu.org> References: <20050207172116.19807.rguenth@gcc.gnu.org> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug middle-end/19807] fold does not fold &a[4]-1 X-Bugzilla-Reason: CC X-SW-Source: 2005-05/txt/msg01483.txt.bz2 List-Id: ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-05-11 08:15 ------- Subject: Bug 19807 CVSROOT: /cvs/gcc Module name: gcc Changes by: rguenth@gcc.gnu.org 2005-05-11 08:14:45 Modified files: gcc : ChangeLog fold-const.c tree-ssa-propagate.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/tree-ssa: pr19807.C Log message: 2005-05-11 Richard Guenther PR middle-end/19807 PR tree-optimization/19639 * fold-const.c (try_move_mult_to_index): Handle INTEGER_CST and generic summands for char* as s * delta, too, folding &a[i] CODE x to &a[i CODE x/s]. Use tree_int_cst_equal for comparison of steps. Convert types for index addition. (fold_binary): Adjust the callers to always dispatch to try_move_mult_to_index. * tree-ssa-propagate.c (set_rhs): Avoid setting rhs to expr with non-gimple ARRAY_REF offset. * g++.dg/tree-ssa/pr19807.C: New testcase. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8725&r2=2.8726 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.576&r2=1.577 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-propagate.c.diff?cvsroot=gcc&r1=2.18&r2=2.19 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5463&r2=1.5464 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/tree-ssa/pr19807.C.diff?cvsroot=gcc&r1=NONE&r2=1.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19807