------- Comment #3 from changpeng dot fang at amd dot com 2010-08-12 00:38 ------- (In reply to comment #2) > It was caused by revision 153878: > > http://gcc.gnu.org/ml/gcc-cvs/2009-11/msg00094.html >
I think the same patch was also committed to 4.4 branch. Maybe some prefetch work(s) in 4.5 triggered the bug. > and disappeared with revision 159514: > > http://gcc.gnu.org/ml/gcc-cvs/2010-05/msg00566.html > > I am not if it really fixed the bug. > This could not be a valid fix, because it just disable some prefetches based on performance concern. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45260
