[tree-ssa] reaching def. question

[Daniel Berlin]

>  >>
>  >> If you can make it work in that situation, then we'd be able to simplify
>  >> a goodly amount of code in the dominator optimizer.
>  >There's a paper on exactly this type of incremental update to SSA
>  >somewhere.  I'll try to find it if someone doesn't explain it satisfactorily
>  >beforehand.
> I've seen stuff for incremental updates when adding new assginments.  I have
> not seen stuff for incremental updates when changing the dominator tree.  If
> you've got the latter, I'd love to get a copy.
I remember seeing the latter.
As soon as citeseer is back up, i'll find it for you (Or am i the only one
who can't connect to citeseer).