src/hotspot/share/gc/shared/c1/barrierSetC1.cpp

*** 332,11 ***
      }
      LIR_Opr src_klass = gen->new_register(T_METADATA);
      if (gen_type_check) {
        // We have determined that offset == referent_offset && src != null.
        // if (src->_klass->_reference_type == REF_NONE) -> continue
!       __ move(new LIR_Address(base_reg, oopDesc::klass_offset_in_bytes(), T_ADDRESS), src_klass);
        LIR_Address* reference_type_addr = new LIR_Address(src_klass, in_bytes(InstanceKlass::reference_type_offset()), T_BYTE);
        LIR_Opr reference_type = gen->new_register(T_INT);
        __ move(reference_type_addr, reference_type);
        __ cmp(lir_cond_equal, reference_type, LIR_OprFact::intConst(REF_NONE));
        __ branch(lir_cond_equal, cont->label());
--- 332,11 ---
      }
      LIR_Opr src_klass = gen->new_register(T_METADATA);
      if (gen_type_check) {
        // We have determined that offset == referent_offset && src != null.
        // if (src->_klass->_reference_type == REF_NONE) -> continue
!       gen->load_klass(base_reg, src_klass, NULL);
        LIR_Address* reference_type_addr = new LIR_Address(src_klass, in_bytes(InstanceKlass::reference_type_offset()), T_BYTE);
        LIR_Opr reference_type = gen->new_register(T_INT);
        __ move(reference_type_addr, reference_type);
        __ cmp(lir_cond_equal, reference_type, LIR_OprFact::intConst(REF_NONE));
        __ branch(lir_cond_equal, cont->label());