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GH-119258: Handle STORE_ATTR_WITH_HINT in tier two (GH-119481)

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Brandt Bucher 2024-05-28 12:47:54 -07:00 • committed by GitHub
parent cfcc054dee
commit 5cd3ffd6b7
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8 changed files with 137 additions and 61 deletions
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62
Python/executor_cases.c.h generated
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@ -2279,7 +2279,67 @@
break;
}
/* _STORE_ATTR_WITH_HINT is not a viable micro-op for tier 2 because it has unused cache entries */
case _STORE_ATTR_WITH_HINT: {
PyObject *owner;
PyObject *value;
oparg = CURRENT_OPARG();
owner = stack_pointer[-1];
value = stack_pointer[-2];
uint16_t hint = (uint16_t)CURRENT_OPERAND();
assert(Py_TYPE(owner)->tp_flags & Py_TPFLAGS_MANAGED_DICT);
PyDictObject *dict = _PyObject_GetManagedDict(owner);
if (dict == NULL) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
assert(PyDict_CheckExact((PyObject *)dict));
PyObject *name = GETITEM(FRAME_CO_NAMES, oparg);
if (hint >= (size_t)dict->ma_keys->dk_nentries) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
PyObject *old_value;
uint64_t new_version;
if (DK_IS_UNICODE(dict->ma_keys)) {
PyDictUnicodeEntry *ep = DK_UNICODE_ENTRIES(dict->ma_keys) + hint;
if (ep->me_key != name) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
old_value = ep->me_value;
if (old_value == NULL) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
new_version = _PyDict_NotifyEvent(tstate->interp, PyDict_EVENT_MODIFIED, dict, name, value);
ep->me_value = value;
}
else {
PyDictKeyEntry *ep = DK_ENTRIES(dict->ma_keys) + hint;
if (ep->me_key != name) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
old_value = ep->me_value;
if (old_value == NULL) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
new_version = _PyDict_NotifyEvent(tstate->interp, PyDict_EVENT_MODIFIED, dict, name, value);
ep->me_value = value;
}
Py_DECREF(old_value);
STAT_INC(STORE_ATTR, hit);
/* Ensure dict is GC tracked if it needs to be */
if (!_PyObject_GC_IS_TRACKED(dict) && _PyObject_GC_MAY_BE_TRACKED(value)) {
_PyObject_GC_TRACK(dict);
}
/* PEP 509 */
dict->ma_version_tag = new_version;
Py_DECREF(owner);
stack_pointer += -2;
break;
}
case _STORE_ATTR_SLOT: {
PyObject *owner;