[tuples] gimple-tuples-branch created

[Daniel Berlin]

On 9/18/06, Aldy Hernandez <aldyh@redhat.com> wrote:
> On Mon, Sep 18, 2006 at 04:25:39PM -0400, Diego Novillo wrote:
> > Aldy Hernandez wrote on 09/18/06 15:55:
> >
> > > Agreed?
> > >
> > Couldn't you union fields gimple_stmt and stmt?  Though this is gross
> > enough already.  But, sure, I don't really see any simpler way.
>
> That's what I thought, but I don't know if this is going to cause GC
> problems.  Danny?

Yes, that was the other option i presented.
The problem with unioning them is that then you need a tag and
*another* function to tell the GC which member of the union is live.

If this is a temporary hack, it's easier to just keep them both there.

Also, gsi_stmt_ptr should eventually return a non-tree (it should
return a struct gimple_stmt *)
Of course, you can't make it do that yet.
>