[tree-ssa] reaching def. question

[law@redhat.com]

In message <1079536309.32455.62.camel@localhost.localdomain>, Diego Novillo wri
tes:
 >On Wed, 2004-03-17 at 02:21, Zdenek Dvorak wrote:
 >
 >> I have thought about this issue for some time -- would not it be better
 >> to do ssa rewriting over ssa names, thus not requiring the rewrite out
 >> of ssa?
 >>
 >That was the original design, yes.  See my other reply to this thread
 >earlier today.
Can one of y'all walk me through this and how it would work when the dominator
tree changes?

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.


jeff