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
