src/hotspot/share/c1/c1_LIRGenerator.cpp

*** 789,802 ****
  
    if (!src->is_loaded_flattened_array() && !dst->is_loaded_flattened_array()) {
      flags &= ~LIR_OpArrayCopy::always_slow_path;
    }
    if (!src->maybe_flattened_array()) {
!     flags &= ~LIR_OpArrayCopy::src_flat_check;
    }
!   if (!dst->maybe_flattened_array()) {
!     flags &= ~LIR_OpArrayCopy::dst_flat_check;
    }
  
    if (!src_objarray)
      flags &= ~LIR_OpArrayCopy::src_objarray;
    if (!dst_objarray)
--- 789,802 ----
  
    if (!src->is_loaded_flattened_array() && !dst->is_loaded_flattened_array()) {
      flags &= ~LIR_OpArrayCopy::always_slow_path;
    }
    if (!src->maybe_flattened_array()) {
!     flags &= ~LIR_OpArrayCopy::src_valuetype_check;
    }
!   if (!dst->maybe_flattened_array() && !dst->maybe_null_free_array()) {
!     flags &= ~LIR_OpArrayCopy::dst_valuetype_check;
    }
  
    if (!src_objarray)
      flags &= ~LIR_OpArrayCopy::src_objarray;
    if (!dst_objarray)