implementing escape analysis

[Per Bothner]

David Daney wrote:
> I keep threatening to do this for gcj, but was thinking that the best 
> place to do it may be the front end.  Once in tree-ssa form it is more 
> difficult to figure out that a call to _Jv_AllocObject followed by a 
> call to the constructor is the equivalent of the 'new' operator.

Why is that relevant to escape analysis?  A constructor is just
another method, in this context.
-- 
	--Per Bothner
per@bothner.com   http://per.bothner.com/