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GH-143732: SEND specialization (GH-148963)

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* SEND specialization. Adds 2 new specialized instructions:

* SEND_VIRTUAL: for sends to virtual iterators e.g lists and tuples
* SEND_ASYNC_GEN: for sends to async generators

Tweak FOR_ITER_VIRTUAL so that SEND_VIRTUAL and FOR_ITER_VIRTUAL use equivalent guards
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Mark Shannon 2026-05-05 15:19:16 +01:00 • committed by GitHub
parent ffb543d32f
commit 70bd1c2dd2
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29 changed files with 2662 additions and 1548 deletions
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8
Python/specialize.c
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@ -2761,6 +2761,14 @@ _Py_Specialize_Send(_PyStackRef receiver_st, _Py_CODEUNIT *instr)
specialize(instr, SEND_GEN);
return;
}
if (tp->_tp_iteritem != NULL) {
specialize(instr, SEND_VIRTUAL);
return;
}
if (tp == &_PyAsyncGenASend_Type) {
specialize(instr, SEND_ASYNC_GEN);
return;
}
SPECIALIZATION_FAIL(SEND,
_PySpecialization_ClassifyIterator(receiver));
failure: