src/share/vm/opto/superword.cpp

*** 2251,2260 ****
--- 2251,2263 ----
          // if vector resources are limited, do not allow additional unrolling
          if (FLOATPRESSURE > 8) {
            C->set_major_progress();
          }
          cl->mark_do_unroll_only();
+         if (do_reserve_copy()) {
+           cl->mark_loop_vectorized();
+         }
        }
      }
    }
  
    if (do_reserve_copy()) {