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gh-115999: Add partial free-thread specialization for BINARY_SUBSCR (gh-127227)

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Donghee Na 2024-12-02 10:38:17 +09:00 • committed by GitHub
parent 7ea523f47c
commit e2713409cf
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10 changed files with 128 additions and 71 deletions
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Python/bytecodes.c
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@ -704,7 +704,7 @@ dummy_func(
};
specializing op(_SPECIALIZE_BINARY_SUBSCR, (counter/1, container, sub -- container, sub)) {
#if ENABLE_SPECIALIZATION
#if ENABLE_SPECIALIZATION_FT
assert(frame->stackpointer == NULL);
if (ADAPTIVE_COUNTER_TRIGGERS(counter)) {
next_instr = this_instr;
@ -713,7 +713,7 @@ dummy_func(
}
OPCODE_DEFERRED_INC(BINARY_SUBSCR);
ADVANCE_ADAPTIVE_COUNTER(this_instr[1].counter);
#endif /* ENABLE_SPECIALIZATION */
#endif /* ENABLE_SPECIALIZATION_FT */
}
op(_BINARY_SUBSCR, (container, sub -- res)) {
@ -790,11 +790,17 @@ dummy_func(
// Deopt unless 0 <= sub < PyList_Size(list)
DEOPT_IF(!_PyLong_IsNonNegativeCompact((PyLongObject *)sub));
Py_ssize_t index = ((PyLongObject*)sub)->long_value.ob_digit[0];
#ifdef Py_GIL_DISABLED
PyObject *res_o = _PyList_GetItemRef((PyListObject*)list, index);
DEOPT_IF(res_o == NULL);
STAT_INC(BINARY_SUBSCR, hit);
#else
DEOPT_IF(index >= PyList_GET_SIZE(list));
STAT_INC(BINARY_SUBSCR, hit);
PyObject *res_o = PyList_GET_ITEM(list, index);
assert(res_o != NULL);
Py_INCREF(res_o);
#endif
PyStackRef_CLOSE_SPECIALIZED(sub_st, (destructor)PyObject_Free);
DEAD(sub_st);
PyStackRef_CLOSE(list_st);