Polyhedron benchmark results on AMD64

[Paul Richard Thomas]

Please excuse me if this breaks the thread; I am not in a position to
reply directly to the list for the next 24hours.

Diego,

> OK, thanks.  With the two or three cases in the PRs, I think we have enough to
> work on for now.  From what I've seen, one of the main problems with Fortran and
> aliasing is the pass-by-reference rule in Fortran.  This often tricks alias analysis
> into overstating the amount of call-clobbered variables.

Can we do something in the frontend to overcome the pass-by-reference
rule? Can some of the analysis be done where we have the information
and the variables be marked up ins some way?

Paul