On 4/23/07, Seongbae Park <[EMAIL PROTECTED]> wrote:
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.
The crossjumping issue is already filed: http://gcc.gnu.org/PR30905 The perlbmk benchmark always seems to jump up and down for no obvious reason. This one will be tough to analyze, I think. Gr. Steven
