From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21522 invoked by alias); 4 Feb 2009 08:58:11 -0000 Received: (qmail 21469 invoked by uid 48); 4 Feb 2009 08:57:57 -0000 Date: Wed, 04 Feb 2009 08:58:00 -0000 Message-ID: <20090204085757.21468.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/27855] [4.3/4.4 regression] reassociation causes the RA to be confused In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "ubizjak at gmail dot com" 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: 2009-02/txt/msg00320.txt.bz2 ------- Comment #30 from ubizjak at gmail dot com 2009-02-04 08:57 ------- (In reply to comment #29) > A similar problem was fixed with PR38533, is this still an issue? TYPE=double: gcc -DREPS=1000 -msse3 -O2 -mfpmath=sse -ffast-math -fno-tree-reassoc: atlasmm 60 1000 0.208 2076.79 gcc -DREPS=1000 -msse3 -O2 -mfpmath=sse -ffast-math atlasmm 60 1000 0.272 1588.14 TYPE=float: gcc -DREPS=1000 -msse3 -O2 -mfpmath=sse -ffast-math -fno-tree-reassoc atlasmm 60 1000 0.176 2454.39 gcc -DREPS=1000 -msse3 -O2 -mfpmath=sse -ffast-math atlasmm 60 1000 0.168 2571.28 FLOAT case is OK now, but we regressed somehow. DOUBLE case still shows problem and runtime regression too. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855