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GH-145668: Add FOR_ITER specialization for virtual iterators. Specialize GET_ITER. (GH-147967)

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* Add FOR_ITER_VIRTUAL to specialize FOR_ITER for virtual iterators
* Add GET_ITER_SELF to specialize GET_ITER for iterators (including generators)
* Add GET_ITER_VIRTUAL to specialize GET_ITER for iterables as virtual iterators
* Add new (internal) _tp_iteritem function slot to PyTypeObject
* Put limited RESUME at start of genexpr for free-threading. Fix up exception handling in genexpr
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Mark Shannon 2026-04-16 15:22:22 +01:00 • committed by GitHub
parent 0fcf2b72d3
commit 600f4dbd54
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37 changed files with 2987 additions and 1534 deletions
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Python/optimizer.c
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@ -496,8 +496,10 @@ _PyUOp_Replacements[MAX_UOP_ID + 1] = {
[_ITER_JUMP_LIST] = _GUARD_NOT_EXHAUSTED_LIST,
[_ITER_JUMP_TUPLE] = _GUARD_NOT_EXHAUSTED_TUPLE,
[_FOR_ITER] = _FOR_ITER_TIER_TWO,
[_FOR_ITER_VIRTUAL] = _FOR_ITER_VIRTUAL_TIER_TWO,
[_ITER_NEXT_LIST] = _ITER_NEXT_LIST_TIER_TWO,
[_CHECK_PERIODIC_AT_END] = _TIER2_RESUME_CHECK,
[_LOAD_BYTECODE] = _NOP,
};
static const uint8_t