From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20751 invoked by alias); 11 Oct 2005 23:46:12 -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 20554 invoked by alias); 11 Oct 2005 23:46:05 -0000 Date: Tue, 11 Oct 2005 23:46:00 -0000 Message-ID: <20051011234605.20553.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug rtl-optimization/13931] [3.4/4.0/4.1 Regression] combiner much slower on big basic blocks In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "cvs-commit at gcc dot gnu dot org" X-SW-Source: 2005-10/txt/msg01438.txt.bz2 List-Id: ------- Comment #36 from cvs-commit at gcc dot gnu dot org 2005-10-11 23:46 ------- Subject: Bug 13931 CVSROOT: /cvs/gcc Module name: gcc Changes by: ian@gcc.gnu.org 2005-10-11 23:45:57 Modified files: gcc : ChangeLog combine.c Log message: PR rtl-optimization/13931 * combine.c: Revert patch of 2003-05-14, and: (try_combine): Only set elim_i1 and elim_i2 if the destination is completely killed in the appropriate insn. (distribute_notes): Don't skip multiple hard register test for elim_i1 and elim_i2. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.10141&r2=2.10142 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/combine.c.diff?cvsroot=gcc&r1=1.504&r2=1.505 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13931