PR 30194: temporary workaround

[Diego Novillo]

Daniel Berlin wrote on 12/14/06 15:42:

> I assume you are thinking of two things here:
> 
Many more than 2, actually.

> 1. Prioritze putting call clobbered vars into partitions ahead of 
> putting non-call clobbered vars into partitions 2.  Put call
> clobbered vars into call clobbered partitions and non-call clobbered
> vars into non-call clobbered partitions, to avoid adding more call
> clobbering than necessary.
> 
We already do #1.  #2 is possible.  Another is see what variables are
actually referenced on their own and probably *where*.  Ad nauseaum.
Any static heuristic will be easily beat by one testcase or another.

Long term, I will experiment to get closer to dynamic partitioning.  But
for now, there are many tweaks that can be done on the static partitioner.