On Fri, Dec 08, 2006 at 07:39:45PM +0100, Uros Bizjak wrote: > H. J. Lu wrote: > > >Gcc 4.3 revision 119497 has very poor SPEC CPU 2006 FP performance > >regressions on P4, Pentium M and Core Duo, comparing aganst > >gcc 4.2 20060910. With -O2, the typical regressions look like > > > > > > > I think that you are looking at the same problem as > http://gcc.gnu.org/ml/gcc/2006-12/msg00017.html. >
I am not sure. I don't have SPEC CPU 2000 FP performance regressions on x86-64 with -O2 -ffast-math. Again, my regressions are at -O2. H.J.
