[tree-ssa] Put CFG into GGC memory

[Jan Hubicka]

> On Tue, Dec 02, 2003 at 05:52:17PM +0100, Jan Hubicka wrote:
> > I would like to do this incrementally as needed.   This change is
> > disturptive enought and we should see the perofmrance indications first :)
> 
> We should see performance numbers sure, but doing this incrementally
> is more of a mess than not.  Please just change the few bits of the

I plan to move the whole regtests stuff into separate datastructure,
like tree has annotations, so we don't allocate memory used only by RTL
for tree CFG and vice versa, so I am going to touch all of these at
least once again, but I can prepare updated patch with bitmaps moved
there for sure.

Honza
> bitmap code to get these gc allocated as well.
> 
> 
> r~