separate assembly

[Stephen Weeks]

> > I agree with Henry.  I think the right way to split is to partition the toplevel 
> > functions into disjoint sets, with one set per assembly file.  A new chunkifier
> > that does that should be trivial.
> 
> Sounds reasonable.  Can we leverage the existing chunkifier to get us
> partially there?  My first thought would be to use the existing chunkifier
> with ChunkPerFunc which would give us a minimum granularity.  I haven't
> looked at too many programs, but I would think that one assembly file per
> func is too many.  So, probably do some sort of quick bin-packing of
> chunks into super-chunks with approximately the right number of statements
> per assembly file.

I would just use ChunkPerFunc, and then in your backend, start spitting out
chunks to a file until you pass some threshold number of statements.