[MLton] approaches to parallelism in ML

[Stephen Weeks]

> > Although skaller is right that
> > we have to get the 64-bit port done first.  But that's coming.
> 
> Do you have any sort of realistic ETA? How much work will it be to
> extend the NCG?

Both C and native codegen will exist this year.  This first x86-64
native codegen will probably still have some pretty easy low-hanging
fruit, but should be quite usable.