Sep 15, 2022 · May 3, 2022 · May 3, 2022 · May 3, 2022 · May 3, 2022 · May 3, 2022
diff --git a/Include/cpython/funcobject.h b/Include/cpython/funcobject.h
     *     defaults
     *     kwdefaults (only if the object changes, not the contents of the dict)
     *     code
     *     annotations */
     *     annotations
     *     vectorcall function pointer */
    uint32_t func_version;

    /* Invariant:
diff --git a/Python/ceval.c b/Python/ceval.c
            PyObject *getattribute = read_obj(cache->descr);
            assert(Py_IS_TYPE(getattribute, &PyFunction_Type));
            PyFunctionObject *f = (PyFunctionObject *)getattribute;
            uint32_t func_version = read_u32(cache->keys_version);
            DEOPT_IF(f->func_version != func_version, LOAD_ATTR);
            PyCodeObject *code = (PyCodeObject *)f->func_code;
            DEOPT_IF(((PyCodeObject *)f->func_code)->co_argcount != 2, LOAD_ATTR);
            DEOPT_IF(code->co_argcount != 2, LOAD_ATTR);
            DEOPT_IF(!_PyThreadState_HasStackSpace(tstate, code->co_framesize), CALL);
            STAT_INC(LOAD_ATTR, hit);
Original file line number	Diff line number	Diff line change
Expand Up		@@ -48,7 +48,8 @@ typedef struct {
		* defaults
		* kwdefaults (only if the object changes, not the contents of the dict)
		* code
		* annotations */
		* annotations
		* vectorcall function pointer */
		uint32_t func_version;

		/* Invariant:
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Original file line number	Diff line number	Diff line change
Expand Up		@@ -3135,8 +3135,10 @@ _PyEval_EvalFrameDefault(PyThreadState tstate, _PyInterpreterFrame frame, int
		PyObject *getattribute = read_obj(cache->descr);
		assert(Py_IS_TYPE(getattribute, &PyFunction_Type));
		PyFunctionObject f = (PyFunctionObject )getattribute;
		uint32_t func_version = read_u32(cache->keys_version);
		DEOPT_IF(f->func_version != func_version, LOAD_ATTR);
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		PyCodeObject code = (PyCodeObject )f->func_code;
		DEOPT_IF(((PyCodeObject *)f->func_code)->co_argcount != 2, LOAD_ATTR);
		DEOPT_IF(code->co_argcount != 2, LOAD_ATTR);
		DEOPT_IF(!_PyThreadState_HasStackSpace(tstate, code->co_framesize), CALL);
		STAT_INC(LOAD_ATTR, hit);

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