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[3.13] GH-121012: Set index to -1 when list iterators become exhausted in tier 2 (GH-121483) (GH-121494)

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Miss Islington (bot) 2024-07-08 19:09:54 +02:00 • committed by GitHub
parent bccfd8a53f
commit 2f8919ee3c
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4 changed files with 20 additions and 3 deletions
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5
Python/bytecodes.c
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@ -2695,7 +2695,10 @@ dummy_func(
assert(Py_TYPE(iter) == &PyListIter_Type);
PyListObject *seq = it->it_seq;
EXIT_IF(seq == NULL);
EXIT_IF((size_t)it->it_index >= (size_t)PyList_GET_SIZE(seq));
if ((size_t)it->it_index >= (size_t)PyList_GET_SIZE(seq)) {
it->it_index = -1;
EXIT_IF(1);
}
}
op(_ITER_NEXT_LIST, (iter -- iter, next)) {

7
Python/executor_cases.c.h generated
View file

@ -2675,8 +2675,11 @@
JUMP_TO_JUMP_TARGET();
}
if ((size_t)it->it_index >= (size_t)PyList_GET_SIZE(seq)) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
it->it_index = -1;
if (1) {
UOP_STAT_INC(uopcode, miss);
JUMP_TO_JUMP_TARGET();
}
}
break;
}