This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug tree-optimization/39839] [4.3/4.4/4.5 regression] loop invariant motion causes stack spill
- 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: 2 Jan 2010 11:18:32 -0000
- Subject: [Bug tree-optimization/39839] [4.3/4.4/4.5 regression] loop invariant motion causes stack spill
- References: <bug-39839-17592@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from rguenth at gcc dot gnu dot org 2010-01-02 11:18 -------
You may also want to try -fsched-pressure -fschedule-insns which is new
in GCC 4.5 and might decrease register pressure (no idea if it ever moves
things into loops though - the haifa scheduler might not consider it a
region to work on).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39839