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[3.14] GH-144552: Clean up `tail-call.yml ` CI (GH-144553) by savannahostrowski · Pull Request #144683 · python/cpython · GitHub

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[3.14] GH-144552: Clean up tail-call.yml CI (GH-144553) #144683

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Merged
hugovk merged 6 commits into from
Feb 10, 2026
+71 −77
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[3.14] GH-144552: Clean up tail-call.yml CI (GH-144553) #144683

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[3.14] GH-144552: Clean up `tail-call.yml ` CI (GH-144553)
savannahostrowski Feb 9, 2026
d8fad36
Patch up LLVM and runner image for windows
savannahostrowski Feb 10, 2026
8324a54
Merge branch '3.14' into backport-30cfe6e-3.14
savannahostrowski Feb 10, 2026
a6cce47
Change platform toolset on Windows
savannahostrowski Feb 10, 2026
d43d47f
Merge branch 'backport-30cfe6e-3.14' of https://github.com/savannahos…
savannahostrowski Feb 10, 2026
ef92849
Fix up windows
savannahostrowski Feb 10, 2026
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148 changes: 71 additions & 77 deletions .github/workflows/tail-call.yml
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Original file line number Diff line number Diff line change
@@ -1,19 +1,14 @@
name: Tail calling interpreter
on:
pull_request:
paths:
paths: &paths
- '.github/workflows/tail-call.yml'
- 'Python/bytecodes.c'
- 'Python/ceval.c'
- 'Python/ceval_macros.h'
- 'Python/generated_cases.c.h'
push:
paths:
- '.github/workflows/tail-call.yml'
- 'Python/bytecodes.c'
- 'Python/ceval.c'
- 'Python/ceval_macros.h'
- 'Python/generated_cases.c.h'
paths: *paths
workflow_dispatch:

permissions:
Expand All @@ -25,108 +20,107 @@ concurrency:

env:
FORCE_COLOR: 1
LLVM_VERSION: 20

jobs:
tail-call:
windows:
name: ${{ matrix.target }}
runs-on: ${{ matrix.runner }}
timeout-minutes: 90
timeout-minutes: 60
strategy:
fail-fast: false
matrix:
target:
# Un-comment as we add support for more platforms for tail-calling interpreters.
# - i686-pc-windows-msvc/msvc
- x86_64-pc-windows-msvc/msvc
# - aarch64-pc-windows-msvc/msvc
- x86_64-apple-darwin/clang
- aarch64-apple-darwin/clang
- x86_64-unknown-linux-gnu/gcc
- aarch64-unknown-linux-gnu/gcc
- free-threading
llvm:
- 20
include:
# - target: i686-pc-windows-msvc/msvc
# architecture: Win32
# runner: windows-2022
- target: x86_64-pc-windows-msvc/msvc
architecture: x64
runner: windows-2022
# - target: aarch64-pc-windows-msvc/msvc
# architecture: ARM64
# runner: windows-2022
- target: x86_64-apple-darwin/clang
architecture: x86_64
runner: macos-15-intel
- target: aarch64-apple-darwin/clang
architecture: aarch64
runner: macos-14
- target: x86_64-unknown-linux-gnu/gcc
architecture: x86_64
runner: ubuntu-24.04
- target: aarch64-unknown-linux-gnu/gcc
architecture: aarch64
runner: ubuntu-24.04-arm
- target: free-threading
architecture: x86_64
runner: ubuntu-24.04
build_flags: ""
run_tests: true
steps:
- uses: actions/checkout@v6
with:
persist-credentials: false
- uses: actions/setup-python@v6
with:
python-version: '3.11'

- name: Native Windows (debug)
if: runner.os == 'Windows' && matrix.architecture != 'ARM64'
- name: Build
shell: pwsh
run: |
choco install llvm --allow-downgrade --no-progress --version ${{ matrix.llvm }}.1.0
choco install llvm --allow-downgrade --no-progress --version ${{ env.LLVM_VERSION }}.1.0
$env:PlatformToolset = "clangcl"
$env:LLVMToolsVersion = "${{ matrix.llvm }}.1.0"
$env:LLVMToolsVersion = "${{ env.LLVM_VERSION }}.1.0"
$env:LLVMInstallDir = "C:\Program Files\LLVM"
./PCbuild/build.bat --tail-call-interp -d -p ${{ matrix.architecture }}
./PCbuild/rt.bat -d -p ${{ matrix.architecture }} -q --multiprocess 0 --timeout 4500 --verbose2 --verbose3

# No tests (yet):
- name: Emulated Windows (release)
if: runner.os == 'Windows' && matrix.architecture == 'ARM64'
./PCbuild/build.bat --tail-call-interp ${{ matrix.build_flags }} -c Release -p ${{ matrix.architecture }}
- name: Test
if: matrix.run_tests
shell: pwsh
run: |
choco install llvm --allow-downgrade --no-progress --version ${{ matrix.llvm }}.1.0
$env:PlatformToolset = "clangcl"
$env:LLVMToolsVersion = "${{ matrix.llvm }}.1.0"
$env:LLVMInstallDir = "C:\Program Files\LLVM"
./PCbuild/build.bat --tail-call-interp -p ${{ matrix.architecture }}
./PCbuild/rt.bat -p ${{ matrix.architecture }} -q --multiprocess 0 --timeout 4500 --verbose2 --verbose3

- name: Native macOS (release)
if: runner.os == 'macOS'
macos:
name: ${{ matrix.target }}
runs-on: ${{ matrix.runner }}
timeout-minutes: 60
strategy:
fail-fast: false
matrix:
include:
- target: x86_64-apple-darwin/clang
runner: macos-15-intel
- target: aarch64-apple-darwin/clang
runner: macos-14
steps:
- uses: actions/checkout@v6
with:
persist-credentials: false
- uses: actions/setup-python@v6
with:
python-version: '3.11'
- name: Install dependencies
run: |
brew update
brew install llvm@${{ matrix.llvm }}
brew install llvm@${{ env.LLVM_VERSION }}
- name: Build
run: |
export SDKROOT="$(xcrun --show-sdk-path)"
export PATH="/usr/local/opt/llvm@${{ matrix.llvm }}/bin:$PATH"
export PATH="/opt/homebrew/opt/llvm@${{ matrix.llvm }}/bin:$PATH"
CC=clang-20 ./configure --with-tail-call-interp
export PATH="/usr/local/opt/llvm@${{ env.LLVM_VERSION }}/bin:$PATH"
export PATH="/opt/homebrew/opt/llvm@${{ env.LLVM_VERSION }}/bin:$PATH"
CC=clang-${{ env.LLVM_VERSION }} ./configure --with-tail-call-interp
make all --jobs 4
- name: Test
run: |
./python.exe -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3

- name: Native Linux (debug)
if: runner.os == 'Linux' && matrix.target != 'free-threading'
linux:
name: ${{ matrix.target }}
runs-on: ${{ matrix.runner }}
timeout-minutes: 60
strategy:
fail-fast: false
matrix:
include:
- target: x86_64-unknown-linux-gnu/gcc
runner: ubuntu-24.04
configure_flags: --with-pydebug
- target: x86_64-unknown-linux-gnu/gcc-free-threading
runner: ubuntu-24.04
configure_flags: --disable-gil
- target: aarch64-unknown-linux-gnu/gcc
runner: ubuntu-24.04-arm
configure_flags: --with-pydebug
steps:
- uses: actions/checkout@v6
with:
persist-credentials: false
- uses: actions/setup-python@v6
with:
python-version: '3.11'
- name: Build
run: |
sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)" ./llvm.sh ${{ matrix.llvm }}
export PATH="$(llvm-config-${{ matrix.llvm }} --bindir):$PATH"
CC=clang-20 ./configure --with-tail-call-interp --with-pydebug
sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)" ./llvm.sh ${{ env.LLVM_VERSION }}
export PATH="$(llvm-config-${{ env.LLVM_VERSION }} --bindir):$PATH"
CC=clang-${{ env.LLVM_VERSION }} ./configure --with-tail-call-interp ${{ matrix.configure_flags }}
make all --jobs 4
./python -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3

- name: Native Linux with free-threading (release)
if: matrix.target == 'free-threading'
- name: Test
run: |
sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)" ./llvm.sh ${{ matrix.llvm }}
export PATH="$(llvm-config-${{ matrix.llvm }} --bindir):$PATH"
CC=clang-20 ./configure --with-tail-call-interp --disable-gil
make all --jobs 4
./python -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
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