RFR (S) JDK-8001345: VM crashes with assert(n->outcnt() != 0 || C->top() == n || n->is_Proj()) failed: No dead instructions after post-alloc

[Roland Westrelin]

>> A comment before the new code?
> 
> Yes, good idea. http://cr.openjdk.java.net/~adlertz/JDK-8001345/webrev01/

It's not only about LoadN/DecodeN but any LoadNode. LoadN/DecodeN is a special case (object field, 64 bit, compressed oops on). Maybe: "The MembarNode may keep a LoadNode that is unneeded live through the Precedent edge"?

Roland.