Issue #6970: Remove redundant calls made when comparing objects.
diff --git a/Objects/object.c b/Objects/object.c
index 90cdc74..002acd0 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -544,10 +544,12 @@
{
richcmpfunc f;
PyObject *res;
+ int checked_reverse_op = 0;
if (v->ob_type != w->ob_type &&
PyType_IsSubtype(w->ob_type, v->ob_type) &&
(f = w->ob_type->tp_richcompare) != NULL) {
+ checked_reverse_op = 1;
res = (*f)(w, v, _Py_SwappedOp[op]);
if (res != Py_NotImplemented)
return res;
@@ -559,7 +561,7 @@
return res;
Py_DECREF(res);
}
- if ((f = w->ob_type->tp_richcompare) != NULL) {
+ if (!checked_reverse_op && (f = w->ob_type->tp_richcompare) != NULL) {
res = (*f)(w, v, _Py_SwappedOp[op]);
if (res != Py_NotImplemented)
return res;