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gh-131798: Split _CHECK_AND_ALLOCATE_OBJECT into smaller uops (GH-148433)

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Co-authored-by: Hai Zhu <haiizhu@outlook.com>
Co-authored-by: Ken Jin <kenjin4096@gmail.com>
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Sacul 2026-04-13 02:31:24 +08:00 • committed by GitHub
parent 6f7bb297db
commit 18d7d90ef9
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GPG key ID: B5690EEEBB952194
10 changed files with 1413 additions and 1289 deletions
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13
Python/bytecodes.c
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@ -4499,15 +4499,23 @@ dummy_func(
POP_TOP +
_CHECK_PERIODIC_AT_END;
op(_CHECK_AND_ALLOCATE_OBJECT, (type_version/2, callable, self_or_null, unused[oparg] -- callable, self_or_null, unused[oparg])) {
op(_CHECK_OBJECT, (type_version/2, callable, self_or_null, unused[oparg] -- callable, self_or_null, unused[oparg])) {
PyObject *callable_o = PyStackRef_AsPyObjectBorrow(callable);
EXIT_IF(!PyStackRef_IsNull(self_or_null));
EXIT_IF(!PyType_Check(callable_o));
PyTypeObject *tp = (PyTypeObject *)callable_o;
EXIT_IF(FT_ATOMIC_LOAD_UINT32_RELAXED(tp->tp_version_tag) != type_version);
}
op(_ALLOCATE_OBJECT, (callable, self_or_null, unused[oparg] -- callable, self_or_null, unused[oparg])) {
PyObject *callable_o = PyStackRef_AsPyObjectBorrow(callable);
assert(PyStackRef_IsNull(self_or_null));
assert(PyType_Check(callable_o));
PyTypeObject *tp = (PyTypeObject *)callable_o;
assert(tp->tp_new == PyBaseObject_Type.tp_new);
assert(tp->tp_flags & Py_TPFLAGS_HEAPTYPE);
assert(tp->tp_alloc == PyType_GenericAlloc);
PyHeapTypeObject *cls = (PyHeapTypeObject *)callable_o;
PyFunctionObject *init_func = (PyFunctionObject *)FT_ATOMIC_LOAD_PTR_ACQUIRE(cls->_spec_cache.init);
PyCodeObject *code = (PyCodeObject *)init_func->func_code;
@ -4552,7 +4560,8 @@ dummy_func(
_RECORD_CALLABLE +
unused/1 +
_CHECK_PEP_523 +
_CHECK_AND_ALLOCATE_OBJECT +
_CHECK_OBJECT +
_ALLOCATE_OBJECT +
_CREATE_INIT_FRAME +
_PUSH_FRAME;