From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21302 invoked by alias); 15 Jul 2005 08:26:25 -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 21229 invoked by uid 48); 15 Jul 2005 08:26:22 -0000 Date: Fri, 15 Jul 2005 08:46:00 -0000 Message-ID: <20050715082622.21228.qmail@sourceware.org> From: "hanzac at gmail dot com" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20010621081601.3329.dorian.araneda@intel.com> References: <20010621081601.3329.dorian.araneda@intel.com> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug rtl-optimization/3329] optimization large memory copies uses kernel memcpy function without user's knowledge. X-Bugzilla-Reason: CC X-SW-Source: 2005-07/txt/msg01866.txt.bz2 List-Id: ------- Additional Comments From hanzac at gmail dot com 2005-07-15 08:26 ------- > Anyway, like (nearly) all optimizations in gcc, it can be turned off by turning off optimization for the affected file. It can't be turned off when using MinGW GCC. I hope there will be a option to enable or disable this feature that auto-emits memcpy. Because when developing a OS kernel, external memcpy to link is not available, of course. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3329