src/hotspot/share/opto/macro.cpp

*** 765,774 ****
--- 765,781 ----
              NOT_PRODUCT(fail_eliminate = "Object is referenced by node";)
            }
            DEBUG_ONLY(disq_node = use;)
          }
          can_eliminate = false;
+       } else {
+         assert(use->Opcode() == Op_CastP2X, "should be");
+         if (use->has_out_with(Op_OrL)) {
+           // Fixme
+           // This is not a card mark!
+           can_eliminate = false;
+         }
        }
      }
    }
  
  #ifndef PRODUCT