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GH-139922: Tail calling for MSVC (VS 2026) #143068

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Merged
Fidget-Spinner merged 11 commits into from
Dec 22, 2025
+520 −675
Merged

GH-139922: Tail calling for MSVC (VS 2026) #143068

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374874c
rebased + _Py_VectorCallInstrumentation_StackRefSteal
chris-eibl Dec 21, 2025
e0cd0f5
Merge commit '374874c3e6d8c4745a52b3bc22044db607b2c9e7' into msvc-tai…
chris-eibl Dec 21, 2025
7e5555a
try to fix MSVC tail call CI
chris-eibl Dec 22, 2025
a75042a
Alternative to restrict and conditional Py_NO_INLINE for PyMapping_Ge…
chris-eibl Dec 22, 2025
fdfd8a0
make _PyMapping_GetOptionalItem2 private and comment scopes
chris-eibl Dec 22, 2025
058889e
Merge with main because aarch64 jit builds started failing
chris-eibl Dec 22, 2025
c8d051b
Apply suggestions from code review
chris-eibl Dec 22, 2025
ab70524
Update .github/workflows/tail-call.yml
chris-eibl Dec 22, 2025
5c1c240
enable "Emulated Windows Clang (release)"
chris-eibl Dec 22, 2025
a04824f
Merge remote-tracking branch 'upstream/main' into msvc-tail-call-new
chris-eibl Dec 22, 2025
da1adaf
revert to cmd but keep Hugo's other changes
chris-eibl Dec 22, 2025
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try to fix MSVC tail call CI
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@chris-eibl
chris-eibl committed Dec 22, 2025
commit 7e5555aec4c8091cfe394581c6487810547d1fc8
10 changes: 5 additions & 5 deletions .github/workflows/tail-call.yml
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Expand Up @@ -79,14 +79,14 @@ jobs:
with:
python-version: '3.11'

- name: Native Windows MSVC (PGO)
- name: Native Windows MSVC (release)
if: runner.os == 'Windows' && matrix.architecture != 'ARM64'
shell: cmd
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chris-eibl marked this conversation as resolved.
run: |
choco install visualstudio2026buildtools-preview --pre -allWorkloads
set PATH=C:\Program Files\Microsoft Visual Studio\18\Insiders\MSBuild\Current\Bin\;%PATH%
./PCbuild/build.bat --tail-call-interp --pgo -p ${{ matrix.architecture }} "/p:PlatformToolset=v145"
./PCbuild/rt.bat -p ${{ matrix.architecture }} -q --multiprocess 0 --timeout 4500 --verbose2 --verbose3
choco install visualstudio2026buildtools -y --force --params "--add Microsoft.VisualStudio.Component.VC.Tools.x86.x64 --locale en-US --passive"
set PATH=C:\Program Files (x86)\Microsoft Visual Studio\18\BuildTools\MSBuild\Current\bin;%PATH%
call ./PCbuild/build.bat --tail-call-interp -c Release -p ${{ matrix.architecture }} "/p:PlatformToolset=v145"
call ./PCbuild/rt.bat -p ${{ matrix.architecture }} -q --multiprocess 0 --timeout 4500 --verbose2 --verbose3
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Outdated

# No tests (yet):
- name: Emulated Windows Clang (release)
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