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gh-139922: Add tail call for MSVC for whats new in 3.15 by Fidget-Spinner · Pull Request #143087 · python/cpython

pablogsal


* Builds using Visual Studio 2026 (MSVC 18) may now use the new
:ref:`tail-calling interpreter <whatsnew314-tail-call-interpreter>`.
Results on an early experimental MSVC compiler reported roughly 15% speedup

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is there a way to clarify the experimental version this was measured in (i.e. put the version or whatever in parens)

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Good point. As far as I understand, it was an internal MSVC build in MS, which I can't access, so we will never know :(.

pablogsal

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