stack height reduction in tree-SSA

[tm_gccmail@kloo.net]

On Wed, 1 Sep 2004, Dale Johannesen wrote:

> On Sep 1, 2004, at 9:49 AM, Jeffrey A Law wrote:
> > We've discussed various means of trying to tackle the problem of
> > sharing stack slots to mitigate the stack space problems.  If
> > someone is interested in tackling this problem, I'd suggest
> > they ping Richard Henderson who seemed to have the best handle
> > on a potential solution when we last discussed it as a group
> > a few months ago.
> 
> One thing to bear in mind is that it is *not* always beneficial to 
> reduce
> stack space as much as possible, because this inhibits scheduling.

Some CISCy targets don't have scheduling enabled, so on these targets it's
always beneficial.

Toshi