From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 541 invoked by alias); 20 Feb 2004 02:54:08 -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 387 invoked by uid 48); 20 Feb 2004 02:54:08 -0000 Date: Fri, 20 Feb 2004 02:54:00 -0000 Message-ID: <20040220025408.383.qmail@sources.redhat.com> From: "dberlin at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20040206074537.14042.tjw@omnigroup.com> References: <20040206074537.14042.tjw@omnigroup.com> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug optimization/14042] C++ abstraction penalty is high in simple cases X-Bugzilla-Reason: CC X-SW-Source: 2004-02/txt/msg01964.txt.bz2 List-Id: ------- Additional Comments From dberlin at gcc dot gnu dot org 2004-02-20 02:54 ------- tree-ssa has one memcpy call on the C version, The whole inner loop looks like: L7: vmaddfp v13,v11,v1,v12 vsubfp v0,v11,v12 vaddfp v1,v1,v12 vaddfp v11,v13,v0 vsubfp v12,v1,v0 vmaddfp v1,v1,v13,v0 bdnz L7 L6: IE best it can do. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14042