MEM flags and stack temps

[law@redhat.com]

  In message < 10011151358.AA19694@vlsi1.ultra.nyu.edu >you write:
  > We have code to not reuse stack temps for a temporary of a different alias
  > set.  I think we also need to do the same thing to not reuse for differnt
  > values of volatile, unchanging, scalar, and in_struct.
Quite possibly.


  > But if we do that, we're essentially not sharing anymore.
For the most part, yes.


  > Any thoughts here?
I don't think it's a major problem.  The only area where (IMHO) it causes
problems is the ability to share space for large arrays in different
(disjoint) scopes.

jeff