[issue37500] 3.8.0b2 no longer optimizes away "if 0:" ?

[Guido van Rossum]

Guido van Rossum <guido at python.org> added the comment:

Sure seems to me as if we need to have a separate pass that looks for out-of-place `return`, `yield`, `break` and `continue`, run before the optimization removes `if 0:` blocks etc.

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nosy: +gvanrossum

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37500>
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