On 4/23/07, Vladimir Makarov <[EMAIL PROTECTED]> wrote:
...
To improve the scores I'd recommend to pay attention to big
degradation in SPEC score:
9% perlbmk degradation on Pentium4
3% fma3d degradation on Core2
3% eon and art degradation on Itanium
3% gap and wupwise degradation on PPC64.
Vlad,
Thanks a LOT for the measurement and the summary.
Thanks to your previous report, I've been looking at wupwise on PPC64,
and have found at least one missed optimization opportunity.
I'm testing the fix.
Hopefully it will address some of the remaining regressions above.
As for the perlbmk slowdown on P4.
my initial guess is that it might be due to cross-jumping or block ordering
- those are things I noticed the dataflow branch generates slightly
different code
than mainline.
I didn't try to narrow down where the difference comes from,
as most of the differences seemed unimportant.
--
#pragma ident "Seongbae Park, compiler, http://seongbae.blogspot.com";
