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GH-84436: Skip refcounting for known immortals (GH-107605)

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Brandt Bucher 2023-08-04 16:24:50 -07:00 • committed by GitHub
parent ec0a0d2bd9
commit 05a824f294
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 52 additions and 65 deletions
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2
Python/ceval.c
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@ -1265,7 +1265,7 @@ initialize_locals(PyThreadState *tstate, PyFunctionObject *func,
if (co->co_flags & CO_VARARGS) {
PyObject *u = NULL;
if (argcount == n) {
u = Py_NewRef(&_Py_SINGLETON(tuple_empty));
u = (PyObject *)&_Py_SINGLETON(tuple_empty);
}
else {
assert(args != NULL);

2
Python/context.c
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@ -1267,7 +1267,7 @@ PyTypeObject _PyContextTokenMissing_Type = {
static PyObject *
get_token_missing(void)
{
return Py_NewRef(&_Py_SINGLETON(context_token_missing));
return (PyObject *)&_Py_SINGLETON(context_token_missing);
}

2
Python/fileutils.c
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@ -105,7 +105,7 @@ _Py_device_encoding(int fd)
#else
if (_PyRuntime.preconfig.utf8_mode) {
_Py_DECLARE_STR(utf_8, "utf-8");
return Py_NewRef(&_Py_STR(utf_8));
return &_Py_STR(utf_8);
}
return _Py_GetLocaleEncodingObject();
#endif

2
Python/hamt.c
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@ -514,7 +514,7 @@ hamt_node_bitmap_new(Py_ssize_t size)
/* Since bitmap nodes are immutable, we can cache the instance
for size=0 and reuse it whenever we need an empty bitmap node.
*/
return (PyHamtNode *)Py_NewRef(&_Py_SINGLETON(hamt_bitmap_node_empty));
return (PyHamtNode *)&_Py_SINGLETON(hamt_bitmap_node_empty);
}
assert(size >= 0);