Re: [tree-ssa] More memory reductions

[Daniel Berlin <dberlin at dberlin dot org>]

On Nov 24, 2003, at 11:56 AM, law@redhat.com wrote:

> rIn message <Pine.LNX.4.58.0311241111140.13876@D209.suse.de>, Gerald 
> Pfeifer
> wri
> tes:
> > On Sat, 22 Nov 2003 law@redhat.com wrote:
> > > As I outlined in a previous message, SSA_NAMEs aren't real space
> > > efficient.  Right now they are 32 bytes in size [...]
> > > The net result is the size of an SSA_NAME node is now 24bytes and
> > > fits into the special case 24 byte page in the GC allocator.
> >
> > That's reduction by 33% -- excellent!
> >
> > > In my runs, we allocate over 888466 SSA_NAMEs so getting them from 
> > > the
> > > 32byte page to the 24byte page is a significant amount of memory.
> >
> > What did you use for these runs? PR8361 or something else?
> I'm testing with PR8361.

Hopefully, PR8361 should work well now with PRE on as well.
I'm actually getting rid of the 1 varray per block we store, which will 
save 4 bytes per bb annotations + some varray allocations.