This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/39942] Nonoptimal code - leaveq; xchg %ax,%ax; retq
- From: "vvv at ru dot ru" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 May 2009 18:56:51 -0000
- Subject: [Bug target/39942] Nonoptimal code - leaveq; xchg %ax,%ax; retq
- References: <bug-39942-17483@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #25 from vvv at ru dot ru 2009-05-13 18:56 -------
(In reply to comment #22)
> CCing H.J for Intel optimization issues.
VVV> 1. AMD limitation for 16-bytes page (memory range XXXXXXX0 - XXXXXXXF),
but
VVV> Intel limitation for 16-bytes chunk (memory range XXXXXXXX -
XXXXXXXX+10h)
I have a doubt about this now. Sanks to Richard Guenther (Comment #20). So I am
going to make measurements for check it for Core2.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39942