1566         push(type, append(new LoadField(append(obj), offset, field, true,
1567                                         state_before, needs_patching)));
1568       }
1569       break;
1570     }
1571     case Bytecodes::_putstatic:
1572       { Value val = pop(type);
1573         if (state_before == NULL) {
1574           state_before = copy_state_for_exception();
1575         }
1576         append(new StoreField(append(obj), offset, field, val, true, state_before, needs_patching));
1577       }
1578       break;
1579     case Bytecodes::_getfield: {
1580       // Check for compile-time constants, i.e., trusted final non-static fields.
1581       Instruction* constant = NULL;
1582       obj = apop();
1583       ObjectType* obj_type = obj->type()->as_ObjectType();
1584       if (obj_type->is_constant() && !PatchALot) {
1585         ciObject* const_oop = obj_type->constant_value();
1586         if (!const_oop->is_null_object()) {
1587           if (field->is_constant()) {
1588             ciConstant field_val = field->constant_value_of(const_oop);
1589             BasicType field_type = field_val.basic_type();
1590             switch (field_type) {
1591             case T_ARRAY:
1592             case T_OBJECT:
1593               if (field_val.as_object()->should_be_constant()) {
1594                 constant = new Constant(as_ValueType(field_val));
1595               }
1596               break;
1597             default:
1598               constant = new Constant(as_ValueType(field_val));
1599             }
1600           } else {
1601             // For CallSite objects treat the target field as a compile time constant.
1602             if (const_oop->is_call_site()) {
1603               ciCallSite* call_site = const_oop->as_call_site();
1604               if (field->is_call_site_target()) {
1605                 ciMethodHandle* target = call_site->get_target();
1606                 if (target != NULL) {  // just in case

1566         push(type, append(new LoadField(append(obj), offset, field, true,
1567                                         state_before, needs_patching)));
1568       }
1569       break;
1570     }
1571     case Bytecodes::_putstatic:
1572       { Value val = pop(type);
1573         if (state_before == NULL) {
1574           state_before = copy_state_for_exception();
1575         }
1576         append(new StoreField(append(obj), offset, field, val, true, state_before, needs_patching));
1577       }
1578       break;
1579     case Bytecodes::_getfield: {
1580       // Check for compile-time constants, i.e., trusted final non-static fields.
1581       Instruction* constant = NULL;
1582       obj = apop();
1583       ObjectType* obj_type = obj->type()->as_ObjectType();
1584       if (obj_type->is_constant() && !PatchALot) {
1585         ciObject* const_oop = obj_type->constant_value();
1586         if (!const_oop->is_null_object() && const_oop->is_loaded()) {
1587           if (field->is_constant()) {
1588             ciConstant field_val = field->constant_value_of(const_oop);
1589             BasicType field_type = field_val.basic_type();
1590             switch (field_type) {
1591             case T_ARRAY:
1592             case T_OBJECT:
1593               if (field_val.as_object()->should_be_constant()) {
1594                 constant = new Constant(as_ValueType(field_val));
1595               }
1596               break;
1597             default:
1598               constant = new Constant(as_ValueType(field_val));
1599             }
1600           } else {
1601             // For CallSite objects treat the target field as a compile time constant.
1602             if (const_oop->is_call_site()) {
1603               ciCallSite* call_site = const_oop->as_call_site();
1604               if (field->is_call_site_target()) {
1605                 ciMethodHandle* target = call_site->get_target();
1606                 if (target != NULL) {  // just in case