[issue34888] Python3.8 optimizes away a "while" line

[Ned Batchelder]

Ned Batchelder <ned at nedbatchelder.com> added the comment:

Yury, thanks. I haven't read the code in depth.  I assume there is some place that notices that the while condition is a constant, and therefore doesn't need to be explicitly evaluated?  That test can be disabled, yes?

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<https://bugs.python.org/issue34888>
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