[issue46407] optimizing `1 << n` or `2 ** n` and modulo-only operations

[theeshallnotknowethme]

Change by theeshallnotknowethme <nohackingofkrowten at gmail.com>:


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keywords: +patch
pull_requests: +28831
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/30628

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue46407>
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