This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/27855] [4.3/4.4/4.5 regression] reassociation causes the RA to be confused
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Jan 2010 16:17:29 -0000
- Subject: [Bug target/27855] [4.3/4.4/4.5 regression] reassociation causes the RA to be confused
- References: <bug-27855-1649@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #34 from rguenth at gcc dot gnu dot org 2010-01-19 16:17 -------
Re-confirmed. -fsched-pressure -fschedule-insns helps recover some of the
performance, ivopts adds its share as well as re-association.
Scheduling is probably limited by ivopts producing TMRs and w/o ivopts
by plain INDIRECT_REFs. None of which are handled by the alias-export to RTL.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2007-12-11 05:57:28 |2010-01-19 16:17:28
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27855