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[3.13] gh-133441: Fix STORE_ATTR_WITH_HINT bytecode (#133446)

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Deoptimize if the dict is a dict subclass.

Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
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Victor Stinner 2025-05-11 23:10:04 +02:00 • committed by GitHub
parent 927da99219
commit 5cd56b249f
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4 changed files with 23 additions and 2 deletions
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Python/bytecodes.c
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@ -2149,7 +2149,8 @@ dummy_func(
assert(tp->tp_flags & Py_TPFLAGS_MANAGED_DICT);
PyDictObject *dict = _PyObject_GetManagedDict(owner);
DEOPT_IF(dict == NULL);
assert(PyDict_CheckExact((PyObject *)dict));
DEOPT_IF(!PyDict_CheckExact((PyObject *)dict));
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg);
DEOPT_IF(hint >= (size_t)dict->ma_keys->dk_nentries);
PyObject *old_value;