This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug rtl-optimization/3329] optimization large memory copies uses kernel memcpy function without user's knowledge.
- From: "hanzac at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Jul 2005 08:26:22 -0000
- Subject: [Bug rtl-optimization/3329] optimization large memory copies uses kernel memcpy function without user's knowledge.
- References: <20010621081601.3329.dorian.araneda@intel.com>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- 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