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-rw-r--r--Python/bytecodes.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/Python/bytecodes.c b/Python/bytecodes.c
index 96b97ca4be6..28ade64e056 100644
--- a/Python/bytecodes.c
+++ b/Python/bytecodes.c
@@ -2606,11 +2606,14 @@ dummy_func(
assert(Py_TYPE(iter) == &PyListIter_Type);
STAT_INC(FOR_ITER, hit);
PyListObject *seq = it->it_seq;
- if (seq == NULL || it->it_index >= PyList_GET_SIZE(seq)) {
+ if ((size_t)it->it_index >= (size_t)PyList_GET_SIZE(seq)) {
+ it->it_index = -1;
+ #ifndef Py_GIL_DISABLED
if (seq != NULL) {
it->it_seq = NULL;
Py_DECREF(seq);
}
+ #endif
Py_DECREF(iter);
STACK_SHRINK(1);
/* Jump forward oparg, then skip following END_FOR and POP_TOP instructions */
@@ -2624,8 +2627,7 @@ dummy_func(
_PyListIterObject *it = (_PyListIterObject *)iter;
assert(Py_TYPE(iter) == &PyListIter_Type);
PyListObject *seq = it->it_seq;
- DEOPT_IF(seq == NULL);
- DEOPT_IF(it->it_index >= PyList_GET_SIZE(seq));
+ DEOPT_IF((size_t)it->it_index >= (size_t)PyList_GET_SIZE(seq));
}
op(_ITER_NEXT_LIST, (iter -- iter, next)) {