src/share/vm/opto/loopUnswitch.cpp

*** 178,187 ****
--- 178,188 ----
        }
      }
      ProjNode* invar_proj = invar_iff->proj_out(proj->_con)->as_Proj();
      while (worklist.size() > 0) {
        Node* use = worklist.pop();
+       assert(use->Opcode() != Op_ShenandoahWriteBarrier, "not with wbs yet");
        Node* nuse = use->clone();
        nuse->set_req(0, invar_proj);
        _igvn.replace_input_of(use, 1, nuse);
        register_new_node(nuse, invar_proj);
        // Same for the clone