no need to deopt

Author: carljm

Python/bytecodes.c

@@ -1658,11 +1658,12 @@ dummy_func(
             assert(oparg & 1);
             DEOPT_IF(global_super != (PyObject *)&PySuper_Type, LOAD_SUPER_ATTR);
             DEOPT_IF(!PyType_Check(class), LOAD_SUPER_ATTR);
-            DEOPT_IF(((PyTypeObject *)class)->tp_getattro != PyObject_GenericGetAttr, LOAD_SUPER_ATTR);
             STAT_INC(LOAD_SUPER_ATTR, hit);
             PyObject *name = GETITEM(frame->f_code->co_names, oparg >> 2);
+            PyTypeObject *cls = (PyTypeObject *)class;
             int method_found = 0;
-            res2 = _PySuper_Lookup((PyTypeObject *)class, self, name, &method_found);
+            res2 = _PySuper_Lookup(cls, self, name,
+                                   cls->tp_getattro == PyObject_GenericGetAttr ? &method_found : NULL);
             Py_DECREF(global_super);
             Py_DECREF(class);
             if (res2 == NULL) {