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gh-146558: optimize dict access with objects with known hash #146559

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Merged
kumaraditya303 merged 8 commits into from
Mar 30, 2026
+1,555 −1,254
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gh-146558: optimize dict access with objects with known hash #146559

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b441e1b
optimize dict access with objects with safe hash
kumaraditya303 Mar 28, 2026
a5b4476
fix build on windows
kumaraditya303 Mar 28, 2026
3263498
remove benchmark
kumaraditya303 Mar 28, 2026
3af5968
improve comments
kumaraditya303 Mar 28, 2026
7707961
run regen
kumaraditya303 Mar 28, 2026
2d1a169
fix test warning
kumaraditya303 Mar 28, 2026
ea4ae79
optimize floats and complex as well
kumaraditya303 Mar 28, 2026
7a4d046
refactor common code to optimize_dict_known_hash
kumaraditya303 Mar 30, 2026
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3 changes: 2 additions & 1 deletion Include/internal/pycore_dict.h
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Original file line number Diff line number Diff line change
Expand Up @@ -138,13 +138,14 @@ extern PyObject *_PyDict_LoadBuiltinsFromGlobals(PyObject *globals);

/* Consumes references to key and value */
PyAPI_FUNC(int) _PyDict_SetItem_Take2(PyDictObject *op, PyObject *key, PyObject *value);
PyAPI_FUNC(int) _PyDict_SetItem_Take2_KnownHash(PyDictObject *op, PyObject *key, PyObject *value, Py_hash_t hash);
extern int _PyDict_SetItem_LockHeld(PyDictObject *dict, PyObject *name, PyObject *value);
// Export for '_asyncio' shared extension
PyAPI_FUNC(int) _PyDict_SetItem_KnownHash_LockHeld(PyDictObject *mp, PyObject *key,
PyObject *value, Py_hash_t hash);
// Export for '_asyncio' shared extension
PyAPI_FUNC(int) _PyDict_GetItemRef_KnownHash_LockHeld(PyDictObject *op, PyObject *key, Py_hash_t hash, PyObject **result);
extern int _PyDict_GetItemRef_KnownHash(PyDictObject *op, PyObject *key, Py_hash_t hash, PyObject **result);
PyAPI_FUNC(int) _PyDict_GetItemRef_KnownHash(PyDictObject *op, PyObject *key, Py_hash_t hash, PyObject **result);
extern int _PyDict_GetItemRef_Unicode_LockHeld(PyDictObject *op, PyObject *key, PyObject **result);
PyAPI_FUNC(int) _PyObjectDict_SetItem(PyTypeObject *tp, PyObject *obj, PyObject **dictptr, PyObject *name, PyObject *value);

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