Replace PyObject_CallFunctionObjArgs() with fastcall

* PyObject_CallFunctionObjArgs(func, NULL) => _PyObject_CallNoArg(func)
* PyObject_CallFunctionObjArgs(func, arg, NULL) => _PyObject_CallArg1(func, arg)

PyObject_CallFunctionObjArgs() allocates 40 bytes on the C stack and requires
extra work to "parse" C arguments to build a C array of PyObject*.

_PyObject_CallNoArg() and _PyObject_CallArg1() are simpler and don't allocate
memory on the C stack.

This change is part of the fastcall project. The change on listsort() is
related to the issue #23507.

1 files changed, 1 insertions, 2 deletions

diff --git a/Objects/longobject.c b/Objects/longobject.c
index c95f9467ad..b9f6327759 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -5282,8 +5282,7 @@ long_from_bytes(PyTypeObject *type, PyObject *args, PyObject *kwds)
     Py_DECREF(bytes);
 
     if (type != &PyLong_Type) {
-        Py_SETREF(long_obj, PyObject_CallFunctionObjArgs((PyObject *)type,
-                                                         long_obj, NULL));
+        Py_SETREF(long_obj, _PyObject_CallArg1((PyObject *)type, long_obj));
     }
 
     return long_obj;