gh-118074: Immortal executors are not GC-able (#118182)

gvanrossum · web-flow · commit 7e87d30f1f30 · 2024-04-23T13:38:23.000-07:00
Better version of gh-118117. Just check for immortality instead of an address range check.
diff --git a/Python/optimizer.c b/Python/optimizer.c
@@ -397,10 +397,7 @@ executor_traverse(PyObject *o, visitproc visit, void *arg)
 static int
 executor_is_gc(PyObject *o)
 {
-    if ((PyObject *)&COLD_EXITS[0] <= o && o < (PyObject *)&COLD_EXITS[COLD_EXIT_COUNT]) {
-        return 0;
-    }
-    return 1;
+    return !_Py_IsImmortal(o);
 }
 
 PyTypeObject _PyUOpExecutor_Type = {
