Enable GC for new-style instances. This touches lots of files, since

many types were subclassable but had a xxx_dealloc function that
called PyObject_DEL(self) directly instead of deferring to
self->ob_type->tp_free(self).  It is permissible to set tp_free in the
type object directly to _PyObject_Del, for non-GC types, or to
_PyObject_GC_Del, for GC types.  Still, PyObject_DEL was a tad faster,
so I'm fearing that our pystone rating is going down again.  I'm not
sure if doing something like

void xxx_dealloc(PyObject *self)
{
	if (PyXxxCheckExact(self))
		PyObject_DEL(self);
	else
		self->ob_type->tp_free(self);
}

is any faster than always calling the else branch, so I haven't
attempted that -- however those types whose own dealloc is fancier
(int, float, unicode) do use this pattern.

1 files changed, 2 insertions, 1 deletions

diff --git a/Objects/complexobject.c b/Objects/complexobject.c
index ee0ede4..675d5b5 100644
--- a/Objects/complexobject.c
+++ b/Objects/complexobject.c
@@ -265,7 +265,7 @@ PyComplex_AsCComplex(PyObject *op)
 static void
 complex_dealloc(PyObject *op)
 {
-	PyObject_DEL(op);
+	op->ob_type->tp_free(op);
 }
 
 
@@ -970,6 +970,7 @@ PyTypeObject PyComplex_Type = {
 	0,					/* tp_init */
 	0,					/* tp_alloc */
 	complex_new,				/* tp_new */
+	_PyObject_Del,				/* tp_free */
 };
 
 #endif