On Thu, May 24, 2018 at 10:18:44AM +0000, Christophe Leroy wrote: > On 05/24/2018 06:20 AM, Christophe LEROY wrote: > >Le 23/05/2018 à 20:34, Segher Boessenkool a écrit : > >>On Tue, May 22, 2018 at 08:57:01AM +0200, Christophe Leroy wrote: > >>>The generic csum_ipv6_magic() generates a pretty bad result > >> > >><snip> > >> > >>Please try with a more recent compiler, what you used is pretty ancient. > >>It's not like recent compilers do great on this either, but it's not > >>*that* bad anymore ;-) > > Here is what I get with GCC 8.1 > It doesn't look much better, does it ?
There are no more mfocrf, which is a big speedup. Other than that it is pretty lousy still, I totally agree. This improvement happened quite a while ago, it's fixed in GCC 6. Segher
