some tree-ssa vs mainline stats

[Andrew MacLeod]

On Fri, 2003-06-20 at 10:32, law@redhat.com wrote:
> 
>  >
>  >I don't suppose that the gimplifier knows when its done with a
>  >temporary?  They aren't live past a stmt boundry are they? 
> It doesn't know.  I don't think an are life past the original
> statement boundary when we're done with gimplifying.  However
> be aware that we have a formal temporary table now and try
> to ensure that every time we evaluate a pure expression the
> destination is the same formal temporary.
> 
But presumably, if nothing is live out a stmt, all the temporaries are
available after every stmt, so the same ones ought to be available for
the next stmt which is the same...

Andrew