[issue43760] The DISPATCH() macro is not as efficient as it could be (move PyThreadState.use_tracing)

[Pablo Galindo Salgado]

Pablo Galindo Salgado <pablogsal at gmail.com> added the comment:

Also, I personally thing there is absolutely no guarantee that Cython code generated for 3.9 should work for 3.10 and the thread state is a private structure that has undocumented fields and is not part of the stable API nor the limited API so, tstate->tracing disappearing is totally withing the guarantees between Python versions.

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<https://bugs.python.org/issue43760>
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