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gh-145866: Convert LIST_EXTEND to leave its inputs on the stack to be cleaned up by _POP_TOP be cleaned up by _POP_TOP (GH-146383)

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Neko Asakura 2026-03-27 13:04:17 -04:00 • committed by GitHub
parent 1417737810
commit a492d9ff74
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10 changed files with 1171 additions and 1140 deletions
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Python/bytecodes.c
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@ -2285,7 +2285,7 @@ dummy_func(
list = PyStackRef_FromPyObjectStealMortal(list_o);
}
inst(LIST_EXTEND, (list_st, unused[oparg-1], iterable_st -- list_st, unused[oparg-1])) {
op(_LIST_EXTEND, (list_st, unused[oparg-1], iterable_st -- list_st, unused[oparg-1], i)) {
PyObject *list = PyStackRef_AsPyObjectBorrow(list_st);
PyObject *iterable = PyStackRef_AsPyObjectBorrow(iterable_st);
@ -2300,13 +2300,15 @@ dummy_func(
"Value after * must be an iterable, not %.200s",
Py_TYPE(iterable)->tp_name);
}
PyStackRef_CLOSE(iterable_st);
ERROR_IF(true);
ERROR_NO_POP();
}
assert(Py_IsNone(none_val));
PyStackRef_CLOSE(iterable_st);
i = iterable_st;
DEAD(iterable_st);
}
macro(LIST_EXTEND) = _LIST_EXTEND + POP_TOP;
op(_SET_UPDATE, (set, unused[oparg-1], iterable -- set, unused[oparg-1], i)) {
int err = _PySet_Update(PyStackRef_AsPyObjectBorrow(set),
PyStackRef_AsPyObjectBorrow(iterable));