gh-139922: Add tail call for MSVC for whats new in 3.15#143087
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Fidget-Spinner merged 3 commits intoDec 22, 2025
python:mainpython/cpython:mainfrom
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gh-139922: Add tail call for MSVC for whats new in 3.15#143087Fidget-Spinner merged 3 commits intopython:mainpython/cpython:mainfrom Fidget-Spinner:tail-call-whatsnew-315Fidget-Spinner/cpython:tail-call-whatsnew-315Copy head branch name to clipboard
Fidget-Spinner merged 3 commits into
python:mainpython/cpython:mainfrom
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pablogsal
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Dec 22, 2025
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| * 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 :(.
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📚 Documentation preview 📚: https://cpython-previews--143087.org.readthedocs.build/