https://github.com/python/cpython/commit/c646846c1e8f60e52b636b68bfd0df5e84229098
commit: c646846c1e8f60e52b636b68bfd0df5e84229098
branch: main
author: Sergey B Kirpichev <[email protected]>
committer: corona10 <[email protected]>
date: 2025-06-13T22:32:26+09:00
summary:
gh-126703: Add freelist for PyComplexObject's (gh-135233)
files:
M Include/internal/pycore_freelist_state.h
M Objects/complexobject.c
M Objects/object.c
diff --git a/Include/internal/pycore_freelist_state.h
b/Include/internal/pycore_freelist_state.h
index 4828dfd948f70a..59beb92f3f7b9c 100644
--- a/Include/internal/pycore_freelist_state.h
+++ b/Include/internal/pycore_freelist_state.h
@@ -16,6 +16,7 @@ extern "C" {
# define Py_dicts_MAXFREELIST 80
# define Py_dictkeys_MAXFREELIST 80
# define Py_floats_MAXFREELIST 100
+# define Py_complexes_MAXFREELIST 100
# define Py_ints_MAXFREELIST 100
# define Py_slices_MAXFREELIST 1
# define Py_ranges_MAXFREELIST 6
@@ -43,6 +44,7 @@ struct _Py_freelist {
struct _Py_freelists {
struct _Py_freelist floats;
+ struct _Py_freelist complexes;
struct _Py_freelist ints;
struct _Py_freelist tuples[PyTuple_MAXSAVESIZE];
struct _Py_freelist lists;
diff --git a/Objects/complexobject.c b/Objects/complexobject.c
index c2dd320ae73988..b66ebe131ae605 100644
--- a/Objects/complexobject.c
+++ b/Objects/complexobject.c
@@ -1,4 +1,3 @@
-
/* Complex object implementation */
/* Borrows heavily from floatobject.c */
@@ -9,6 +8,7 @@
#include "pycore_call.h" // _PyObject_CallNoArgs()
#include "pycore_complexobject.h" // _PyComplex_FormatAdvancedWriter()
#include "pycore_floatobject.h" // _Py_convert_int_to_double()
+#include "pycore_freelist.h" // _Py_FREELIST_FREE(), _Py_FREELIST_POP()
#include "pycore_long.h" // _PyLong_GetZero()
#include "pycore_object.h" // _PyObject_Init()
#include "pycore_pymath.h" // _Py_ADJUST_ERANGE2()
@@ -410,16 +410,32 @@ complex_subtype_from_c_complex(PyTypeObject *type,
Py_complex cval)
PyObject *
PyComplex_FromCComplex(Py_complex cval)
{
- /* Inline PyObject_New */
- PyComplexObject *op = PyObject_Malloc(sizeof(PyComplexObject));
+ PyComplexObject *op = _Py_FREELIST_POP(PyComplexObject, complexes);
+
if (op == NULL) {
- return PyErr_NoMemory();
+ /* Inline PyObject_New */
+ op = PyObject_Malloc(sizeof(PyComplexObject));
+ if (op == NULL) {
+ return PyErr_NoMemory();
+ }
+ _PyObject_Init((PyObject*)op, &PyComplex_Type);
}
- _PyObject_Init((PyObject*)op, &PyComplex_Type);
op->cval = cval;
return (PyObject *) op;
}
+static void
+complex_dealloc(PyObject *op)
+{
+ assert(PyComplex_Check(op));
+ if (PyComplex_CheckExact(op)) {
+ _Py_FREELIST_FREE(complexes, op, PyObject_Free);
+ }
+ else {
+ Py_TYPE(op)->tp_free(op);
+ }
+}
+
static PyObject *
complex_subtype_from_doubles(PyTypeObject *type, double real, double imag)
{
@@ -1383,7 +1399,7 @@ PyTypeObject PyComplex_Type = {
"complex",
sizeof(PyComplexObject),
0,
- 0, /* tp_dealloc */
+ complex_dealloc, /* tp_dealloc */
0, /* tp_vectorcall_offset */
0, /* tp_getattr */
0, /* tp_setattr */
diff --git a/Objects/object.c b/Objects/object.c
index 9fe61ba7f1593a..eff3a9862129a2 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -925,6 +925,7 @@ _PyObject_ClearFreeLists(struct _Py_freelists *freelists,
int is_finalization)
// In the free-threaded build, freelists are per-PyThreadState and cleared
in PyThreadState_Clear()
// In the default build, freelists are per-interpreter and cleared in
finalize_interp_types()
clear_freelist(&freelists->floats, is_finalization, free_object);
+ clear_freelist(&freelists->complexes, is_finalization, free_object);
for (Py_ssize_t i = 0; i < PyTuple_MAXSAVESIZE; i++) {
clear_freelist(&freelists->tuples[i], is_finalization, free_object);
}
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