Recent removal of the 'aux' field in tree_common

[Diego Novillo]

On Thu, 2002-02-28 at 12:51, Zack Weinberg wrote:

> The primary reason I took it out was that it's unused on the mainline,
> and we didn't want to waste the memory in 3.1.
> 
Agreed.

> I would be open to putting it back when ast-branch is merged back in,
> but I would prefer to find a way which does not increase the size of
> every tree node.
> 
Sounds sensible.  What about the idea I mentioned in my original
message?  We need to have analysis/optimization information in some
trees (particularly _DECL and _STMT trees).  Would adding fields to only
those trees be OK?

Diego.