From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9487 invoked by alias); 16 Aug 2004 16:42:31 -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 9470 invoked by alias); 16 Aug 2004 16:42:29 -0000 Date: Mon, 16 Aug 2004 16:42:00 -0000 Message-ID: <20040816164229.9468.qmail@sourceware.org> From: "cvs-commit at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20040506083745.15310.kazu@cs.umass.edu> References: <20040506083745.15310.kazu@cs.umass.edu> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug tree-optimization/15310] [tree-ssa] Optimize an addition in a bit field X-Bugzilla-Reason: CC X-SW-Source: 2004-08/txt/msg01547.txt.bz2 List-Id: ------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-08-16 16:42 ------- Subject: Bug 15310 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_4-rhl-branch Changes by: jakub@gcc.gnu.org 2004-08-16 16:42:16 Modified files: gcc : ChangeLog expr.c simplify-rtx.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/gcc.c-torture/execute: 20040629-1.c 20040705-1.c 20040705-2.c 20040709-1.c 20040709-2.c Log message: 2004-07-09 Jakub Jelinek * expr.c (expand_assignment): Reenable bitfield += optimizations. Use alias set 0 for memory, do proper mode calculations and adjust address for memories. * gcc.c-torture/execute/20040709-1.c: New test. * gcc.c-torture/execute/20040709-2.c: New test. 2004-07-05 Jakub Jelinek * expr.c (expand_assignment): Disable the bitfield += optimizations. * gcc.c-torture/execute/20040629-1.c (FIELDS1, FIELDS2): Define to nothing if not yet defined. Use it in b, c and d type definitions. * gcc.c-torture/execute/20040705-1.c: New test. * gcc.c-torture/execute/20040705-2.c: New test. 2004-07-01 Jakub Jelinek * expr.c (expand_assignment): Optimize bitfld += cst for 1 bit bitfields as well. STRIP_NOPS from src operand and PLUS_EXPR's first operand. Don't optimize if the bitfield is volatile. 2004-06-29 Jakub Jelinek * simplify-rtx.c (simplify_binary_operation): Simplify ((A & N) + B) & M -> (A + B) & M if M is pow2 minus 1 constant and N has at least all bits in M set as well. PR tree-optimization/15310 * expr.c (expand_assignment): Optimize += or -= on a bit field in most significant bits. * gcc.c-torture/execute/20040629-1.c: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=2.2326.2.399.2.26&r2=2.2326.2.399.2.27 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expr.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=1.615.4.11.2.2&r2=1.615.4.11.2.3 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/simplify-rtx.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=1.172.4.1.2.1&r2=1.172.4.1.2.2 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=1.3389.2.170.2.13&r2=1.3389.2.170.2.14 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040629-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.2.14.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040705-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.1.14.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040705-2.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.1.14.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040709-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.1.12.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040709-2.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.1.12.1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15310