gh-139922: Tail calling for MSVC (VS 2026)#139962

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python:mainfrom

Fidget-Spinner:msvc-tailcall-take-two

Commits on Aug 21, 2025

Brandt's changes
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Hulon's and mine changes
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push stackrefs into tstate
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Fix last few remaining problems
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Commits on Aug 24, 2025

fix handling of recursion
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Commits on Oct 11, 2025

Changes by Chris to support clang-cl
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Make the restrict MSVC only for now
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Merge remote-tracking branch 'upstream/main' into msvc-tailcall-take-two
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Change restricts to MSVC only
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📜🤖 Added by blurb_it.
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Reduce diff
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Merge branch 'msvc-tailcall-take-two' of github.com:Fidget-Spinner/cpython into msvc-tailcall-take-two
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Work around specialization
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Fix VS 2026
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fix a typo
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Move to macros to internal header
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Merge branch 'msvc-tailcall-take-two' of github.com:Fidget-Spinner/cpython into msvc-tailcall-take-two
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Commits on Oct 13, 2025

Reduce number of restricts
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Merge branch 'msvc-tailcall-take-two' of https://github.com/Fidget-Spinner/cpython into msvc-tailcall-take-two
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Reduce restrict use even more, reduce usage
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Commits on Oct 23, 2025

Apply Chris' changes
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Commits on Nov 4, 2025

Merge remote-tracking branch 'upstream/main' into msvc-tailcall-take-two
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Commits on Nov 11, 2025

Merge remote-tracking branch 'upstream/main' into msvc-tailcall-take-two
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Use choco for now to get VS 2026
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Update tail-call.yml
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