What to remove after tree-ssa is merged?

[Paul Brook]

On Wednesday 04 February 2004 1:26 pm, S. Bosscher wrote:
> It is not required for Ada right now because Ada doesn't work
> with tree-ssa anyway.  And if it will, then we'll have to see
> how to fit in the thing that PLACEHOLDER_EXPR is for now.  I
> don't know what it is used for at present, but there has to be
> a way (or there will have to be) to express the same thing in
> GIMPLE.

I think it's worth explicity pointing out that PLACEHOLDER_EXPR doesn't work 
on tree-ssa anyway. I don't see how removing it effects ada as it would need 
to be reimplemented anyway when ada moves to tree-ssa.

To put it annother way: there's no way to tell if we break it, so it's not 
going to get fixed. Hence we may as well remove it.

If you really think the existing remnants are important then that's what we 
have CVS history for.

Paul