Enabling SSA for alpha?

[Jeffrey A Law]

  In message < 200003151924.OAA25570@polya.math.purdue.edu >you write:
  > OK, I've read Muchnick's short section on transforming to SSA form; he
  > doesn't give an algorithm for transforming *from* SSA form,
Correct, but I do believe he discusses the general concepts behind SSA
reasonably well.

  > might be the critical part I don't understand---if you go from gcc's
  > intermediate representation to SSA and back again, do you lose the property
  > that no destination registers overlap source registers? 
Correct.

  > It would seem that the algorithm to go from SSA to gcc's intermediate form
  > is crucial here.
It's certainly important.
jeff