src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp

*** 1259,1275 ****
    LIR_Opr klass_reg = FrameMap::rdx_metadata_opr;
  
    length.load_item_force(FrameMap::rbx_opr);
    LIR_Opr len = length.result();
  
!   CodeStub* slow_path = new NewObjectArrayStub(klass_reg, len, reg, info);
!   ciKlass* obj = (ciKlass*) ciObjArrayKlass::make(x->klass());
    if (obj == ciEnv::unloaded_ciobjarrayklass()) {
      BAILOUT("encountered unloaded_ciobjarrayklass due to out of memory error");
    }
    klass2reg_with_patching(klass_reg, obj, patching_info);
    __ allocate_array(reg, len, tmp1, tmp2, tmp3, tmp4, T_OBJECT, klass_reg, slow_path);
  
    LIR_Opr result = rlock_result(x);
    __ move(reg, result);
  }
  
--- 1259,1280 ----
    LIR_Opr klass_reg = FrameMap::rdx_metadata_opr;
  
    length.load_item_force(FrameMap::rbx_opr);
    LIR_Opr len = length.result();
  
!   ciKlass* obj = (ciKlass*) x->exact_type();
!   CodeStub* slow_path = new NewObjectArrayStub(klass_reg, len, reg, info, obj->is_value_array_klass());
    if (obj == ciEnv::unloaded_ciobjarrayklass()) {
      BAILOUT("encountered unloaded_ciobjarrayklass due to out of memory error");
    }
    klass2reg_with_patching(klass_reg, obj, patching_info);
+   if (obj->is_value_array_klass()) {
+     // This check is valid even if the class is not yet loaded, because the class has a "Q" signature.
+     __ allocate_array(reg, len, tmp1, tmp2, tmp3, tmp4, T_VALUETYPE, klass_reg, slow_path);
+   } else {
      __ allocate_array(reg, len, tmp1, tmp2, tmp3, tmp4, T_OBJECT, klass_reg, slow_path);
+   }
  
    LIR_Opr result = rlock_result(x);
    __ move(reg, result);
  }