GH-96793: Change `FOR_ITER` to not pop the iterator on exhaustion. by markshannon · Pull Request #96801 · python/cpython · GitHub

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faster-cpython:for-iter-no-pop

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Pull requests 2.6k

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Enable specialization of iteration over generators, for gen():, and awaiting coroutines, await coro() #96793

Modify FOR_ITER to leave iterator on stack. Work in progress.

Document change to FOR_ITER.

Merge branch 'main' into for-iter-no-pop

awaiting core review

Skip over POP_TOP at end of loop in specialized versions of FOR_ITER.

Merge branch 'main' into for-iter-no-pop

Fix up new POP_TOPs to have no location.

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faster-cpython/ideas#457 (comment)

Merge branch 'main' into for-iter-no-pop

Add END_FOR instruction

Fix up specialization of FOR_ITER

Add END_FOR to docs.

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⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot s390x RHEL7 3.x has failed when building commit 22863df.

to not pop the iterator on exhausti…

Further optimize FOR_ITER tekknolagi/skybison#508

[SOT][3.12] replace POP_JUMP_{BACKWARD,FORWARD}_IF_{TRUE,FALSE} to POP_JUMP_IF_{TRUE,FALSE} PaddlePaddle/Paddle#62155