[issue30416] constant folding opens compiler to quadratic time hashing

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:


New changeset 2e3f5701858d1fc04caedefdd9a8ea43810270d2 by Serhiy Storchaka in branch 'master':
bpo-30416: Protect the optimizer during constant folding. (#4860)
https://github.com/python/cpython/commit/2e3f5701858d1fc04caedefdd9a8ea43810270d2


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<https://bugs.python.org/issue30416>
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