From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12305 invoked by alias); 13 May 2009 18:22:34 -0000 Received: (qmail 11661 invoked by uid 48); 13 May 2009 18:22:12 -0000 Date: Wed, 13 May 2009 18:22:00 -0000 Message-ID: <20090513182212.11660.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug target/39942] Nonoptimal code - leaveq; xchg %ax,%ax; retq 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: 2009-05/txt/msg01135.txt.bz2 ------- Comment #22 from ubizjak at gmail dot com 2009-05-13 18:22 ------- (In reply to comment #21) > I guess! Your patch is absolutely correct for AMD AthlonTM 64 and AMD OpteronTM > processors, but it is nonoptimal for Intel processors. Because: ... CCing H.J for Intel optimization issues. -- ubizjak at gmail dot com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hjl dot tools at gmail dot | |com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39942