Right, there's no instruction scheduling now. My early estimates I've done several months ago show that instruction scheduling should bring +20% to SciMark2 score on Harmony.
Thanks, Aleksey. On Fri, Sep 19, 2008 at 7:39 PM, <[EMAIL PROTECTED]> wrote: > On Sep 19, 2008 11:27pm, Ian Rogers <[EMAIL PROTECTED]> wrote: >> >> [EMAIL PROTECTED] wrote: >> >> >> Ian, a quick question - is there any instruction scheduling work in Jikes > > RVM? If yes, local or global or both? Thanks. -Xiaoming >> >> >> >> >> >> >> There is instruction scheduling [1] but it is only performed on > > PowerPC[2]. There was an effort to improve it, possibly including x87, but > that hasn't produced any code I've seen. >> >> >> >> Regards, >> >> Ian >> >> >> >> [1] > > http://jikesrvm.svn.sourceforge.net/viewvc/jikesrvm/rvmroot/trunk/rvm/src/org/jikesrvm/compilers/opt/instrsched/ >> >> [2] > > http://jikesrvm.svn.sourceforge.net/viewvc/jikesrvm/rvmroot/trunk/rvm/src/org/jikesrvm/compilers/opt/driver/ppc/MIROptimizationPlanner.java?revision=14000&view=markup#l_87 >> > > Thanks. To my best knowledge, there is no instruction scheduling in Harmony > now. I think it's better to do something related with low overhead even in > out-of-order machines such as IA32. > > Xiaoming >
