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]

>    hash_delete(this);
>    del_req(Precedent);
>    phase->is_IterGVN()->_worklist.push(my_mem); // remove dead node later

Is hash_delete(this) required? Isn't it done by PhaseIterGVN::transform_old() before Ideal() is called?

Roland.