Sent from my iPhone
On Feb 4, 2010, at 2:48 AM, "rearnsha at gcc dot gnu dot org" <gcc-bugzi...@gcc.gnu.org
> wrote:
------- Comment #8 from rearnsha at gcc dot gnu dot org 2010-02-04
10:48 -------
Created an attachment (id=19803)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19803&action=view)
Possible patch
I've been testing the attached patch on ARM (well, thumb) where
there's a
similar issue. It's perhaps a bit more aggressive than it needs to
be, but it
should solve the problem generically rather than requiring each back-
end to
implement hacks for what is really a MI issue.
Could someone test this on PPC?
Well powerpc64 it is valid to move across the stack pointer if the
stack is less than a specific size so this can cause regressions
there. And will also cause a performance regressions on x86_64 also
for the same reason.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30282
