bpo-37151: remove _PyCFunction_FastCallDict (GH-14269)

Include/methodobject.h

@@ -42,11 +42,6 @@ PyAPI_FUNC(int) PyCFunction_GetFlags(PyObject *);
 PyAPI_FUNC(PyObject *) PyCFunction_Call(PyObject *, PyObject *, PyObject *);
 
 #ifndef Py_LIMITED_API
-PyAPI_FUNC(PyObject *) _PyCFunction_FastCallDict(PyObject *func,
-    PyObject *const *args,
-    Py_ssize_t nargs,
-    PyObject *kwargs);
-
 PyAPI_FUNC(PyObject *) _PyCFunction_Vectorcall(PyObject *func,
     PyObject *const *stack,
     size_t nargsf,

Objects/call.c

@@ -495,24 +495,6 @@ exit:
 }
 
 
-PyObject *
-_PyCFunction_FastCallDict(PyObject *func,
-                          PyObject *const *args, Py_ssize_t nargs,
-                          PyObject *kwargs)
-{
-    PyObject *result;
-
-    assert(func != NULL);
-    assert(PyCFunction_Check(func));
-
-    result = _PyMethodDef_RawFastCallDict(((PyCFunctionObject*)func)->m_ml,
-                                          PyCFunction_GET_SELF(func),
-                                          args, nargs, kwargs);
-    result = _Py_CheckFunctionResult(func, result, NULL);
-    return result;
-}
-
-
 PyObject *
 _PyMethodDef_RawFastCallKeywords(PyMethodDef *method, PyObject *self,
                                  PyObject *const *args, Py_ssize_t nargs,

Python/ceval.c

@@ -5018,7 +5018,7 @@ do_call_core(PyThreadState *tstate, PyObject *func, PyObject *callargs, PyObject
                 return NULL;
             }
 
-            C_TRACE(result, _PyCFunction_FastCallDict(func,
+            C_TRACE(result, _PyObject_FastCallDict(func,
                                                    &_PyTuple_ITEMS(callargs)[1],
                                                    nargs - 1,
                                                    kwdict));

Tools/gdb/libpython.py

@@ -1563,8 +1563,7 @@ class Frame(object):
         if not caller:
             return False
 
-        if caller in ('_PyCFunction_FastCallDict',
-                      '_PyCFunction_Vectorcall',
+        if caller in ('_PyCFunction_Vectorcall',
                       'cfunction_call_varargs'):
             arg_name = 'func'
             # Within that frame: