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, 5 insertions, 7 deletions

diff --git a/Modules/_asynciomodule.c b/Modules/_asynciomodule.c
index b65fc02..19503a8 100644
--- a/Modules/_asynciomodule.c
+++ b/Modules/_asynciomodule.c
@@ -721,8 +721,7 @@ static PyObject *
 _asyncio_Future__repr_info_impl(FutureObj *self)
 /*[clinic end generated code: output=fa69e901bd176cfb input=f21504d8e2ae1ca2]*/
 {
-    return PyObject_CallFunctionObjArgs(
-        asyncio_future_repr_info_func, self, NULL);
+    return _PyObject_CallArg1(asyncio_future_repr_info_func, self);
 }
 
 /*[clinic input]
@@ -1535,8 +1534,7 @@ static PyObject *
 _asyncio_Task__repr_info_impl(TaskObj *self)
 /*[clinic end generated code: output=6a490eb66d5ba34b input=3c6d051ed3ddec8b]*/
 {
-    return PyObject_CallFunctionObjArgs(
-        asyncio_task_repr_info_func, self, NULL);
+    return _PyObject_CallArg1(asyncio_task_repr_info_func, self);
 }
 
 /*[clinic input]
@@ -1896,7 +1894,7 @@ task_set_error_soon(TaskObj *task, PyObject *et, const char *format, ...)
         return NULL;
     }
 
-    PyObject *e = PyObject_CallFunctionObjArgs(et, msg, NULL);
+    PyObject *e = _PyObject_CallArg1(et, msg);
     Py_DECREF(msg);
     if (e == NULL) {
         return NULL;
@@ -1946,7 +1944,7 @@ task_step_impl(TaskObj *task, PyObject *exc)
 
         if (!exc) {
             /* exc was not a CancelledError */
-            exc = PyObject_CallFunctionObjArgs(asyncio_CancelledError, NULL);
+            exc = _PyObject_CallNoArg(asyncio_CancelledError);
             if (!exc) {
                 goto fail;
             }
@@ -2176,7 +2174,7 @@ task_step_impl(TaskObj *task, PyObject *exc)
     }
 
     /* Check if `result` is a generator */
-    o = PyObject_CallFunctionObjArgs(inspect_isgenerator, result, NULL);
+    o = _PyObject_CallArg1(inspect_isgenerator, result);
     if (o == NULL) {
         /* An exception in inspect.isgenerator */
         goto fail;