[MLton-devel] walking the stack for profiling

Matthew Fluet fluet@CS.Cornell.EDU
Thu, 12 Dec 2002 14:56:17 -0500 (EST)


> > I don't think that it will be that expensive.  The simplest solution might
> > be to put stackTop in GCState class, but that might be more expensive.
> >
> > I don't have time to work on that today, but I'll try to take a look at it
> > tomorrow afternoon.  Over the weekend for sure; it should only be a couple
> > of hours.
>
> Great, so I'll put stackTop in GCState for now for testing and await
> the more efficient fix.  Thanks.

There is a chance you may get register allocation bugs with this.  So many
locations are indirections off of stackTop, and if it's not in a register,
then we need to do a lot of spilling to get it back.





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