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Issue #29263: LOAD_METHOD support for C methods

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Calling builtin method is at most 10% faster.
This commit is contained in:
INADA Naoki 2017-02-03 07:43:03 +09:00
parent 144fff8b90
commit 5566bbb8d5
8 changed files with 88 additions and 36 deletions
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12
Python/ceval.c
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@ -4832,17 +4832,19 @@ call_function(PyObject ***pp_stack, Py_ssize_t oparg, PyObject *kwnames)
PyObject *x, *w;
Py_ssize_t nkwargs = (kwnames == NULL) ? 0 : PyTuple_GET_SIZE(kwnames);
Py_ssize_t nargs = oparg - nkwargs;
PyObject **stack;
PyObject **stack = (*pp_stack) - nargs - nkwargs;
/* Always dispatch PyCFunction first, because these are
presumed to be the most frequent callable object.
*/
if (PyCFunction_Check(func)) {
PyThreadState *tstate = PyThreadState_GET();
stack = (*pp_stack) - nargs - nkwargs;
C_TRACE(x, _PyCFunction_FastCallKeywords(func, stack, nargs, kwnames));
}
else if (Py_TYPE(func) == &PyMethodDescr_Type) {
PyThreadState *tstate = PyThreadState_GET();
C_TRACE(x, _PyMethodDescr_FastCallKeywords(func, stack, nargs, kwnames));
}
else {
if (PyMethod_Check(func) && PyMethod_GET_SELF(func) != NULL) {
/* Optimize access to bound methods. Reuse the Python stack
@ -4856,20 +4858,18 @@ call_function(PyObject ***pp_stack, Py_ssize_t oparg, PyObject *kwnames)
Py_INCREF(func);
Py_SETREF(*pfunc, self);
nargs++;
stack--;
}
else {
Py_INCREF(func);
}
stack = (*pp_stack) - nargs - nkwargs;
if (PyFunction_Check(func)) {
x = fast_function(func, stack, nargs, kwnames);
}
else {
x = _PyObject_FastCallKeywords(func, stack, nargs, kwnames);
}
Py_DECREF(func);
}