Another LiveInterval Question

Post-phi-elimination, when can a LiveInterval VNInfo have a ~1 or ~0 def
value? I've seen ~0 on intervals created for spills. Can it happen anywhere
else?

                                                -Dave

Post-phi-elimination, when can a LiveInterval VNInfo have a ~1 or ~0 def
value? I've seen ~0 on intervals created for spills. Can it happen anywhere
else?

They can be created during coalescing.

Evan

Ah. This and your answer to the question about multiple valnos is
helpful. Thanks. I'll dive into this some more and will probably
surface other questions. :slight_smile:

                                  -Dave