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workflows
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workflows
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jit.yml
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name
:
JIT
on
:
pull_request
:
paths
:
&paths
-
'
**jit**
'
-
'
Python/bytecodes.c
'
-
'
Python/optimizer*.c
'
-
'
Python/executor_cases.c.h
'
-
'
Python/optimizer_cases.c.h
'
-
'
**_testinternalcapi**
'
-
'
!Python/perf_jit_trampoline.c
'
-
'
!**/*.md
'
-
'
!**/*.ini
'
push
:
paths
:
*paths
workflow_dispatch
:
permissions
:
contents
:
read
concurrency
:
group
:
${{ github.workflow }}-${{ github.head_ref || github.run_id }}
cancel-in-progress
:
true
env
:
FORCE_COLOR
:
1
LLVM_VERSION
:
21
jobs
:
interpreter
:
name
:
Interpreter (Debug)
runs-on
:
ubuntu-26.04
timeout-minutes
:
60
steps
:
-
uses
:
actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
#
v7.0.0
with
:
persist-credentials
:
false
-
name
:
Install dependencies
run
:
|
sudo ./.github/workflows/posix-deps-apt.sh
-
name
:
Build tier two interpreter
run
:
|
./configure --enable-experimental-jit=interpreter --with-pydebug
make all --jobs 4
-
name
:
Test tier two interpreter
run
:
|
./python -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
windows
:
name
:
${{ matrix.target }} (${{ matrix.debug && 'Debug' || 'Release' }})
runs-on
:
${{ matrix.runner }}
timeout-minutes
:
60
strategy
:
fail-fast
:
false
matrix
:
target
:
-
i686-pc-windows-msvc/msvc
-
x86_64-pc-windows-msvc/msvc
-
aarch64-pc-windows-msvc/msvc
debug
:
-
true
-
false
include
:
-
target
:
i686-pc-windows-msvc/msvc
architecture
:
Win32
runner
:
windows-2025
-
target
:
x86_64-pc-windows-msvc/msvc
architecture
:
x64
runner
:
windows-2025
-
target
:
aarch64-pc-windows-msvc/msvc
architecture
:
ARM64
runner
:
windows-11-arm
steps
:
-
uses
:
actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
#
v7.0.0
with
:
persist-credentials
:
false
-
uses
:
actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
#
v6.2.0
with
:
python-version
:
'
3.11
'
#
PCbuild downloads LLVM automatically:
-
name
:
Build
run
:
|
./PCbuild/build.bat --experimental-jit ${{ matrix.debug && '-d' || '' }} -p ${{ matrix.architecture }}
-
name
:
Test
run
:
|
./PCbuild/rt.bat ${{ matrix.debug && '-d' || '' }} -p ${{ matrix.architecture }} -q --multiprocess 0 --timeout 4500 --verbose2 --verbose3
macos
:
name
:
${{ matrix.target }} (${{ matrix.debug && 'Debug' || 'Release' }})
runs-on
:
${{ matrix.runner }}
timeout-minutes
:
60
strategy
:
fail-fast
:
false
matrix
:
target
:
-
x86_64-apple-darwin/clang
-
aarch64-apple-darwin/clang
debug
:
-
true
-
false
include
:
-
target
:
x86_64-apple-darwin/clang
runner
:
macos-26-intel
-
target
:
aarch64-apple-darwin/clang
runner
:
macos-26
steps
:
-
uses
:
actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
#
v7.0.0
with
:
persist-credentials
:
false
-
uses
:
actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
#
v6.2.0
with
:
python-version
:
'
3.11
'
-
name
:
Install LLVM
run
:
|
brew update
brew install llvm@${{ env.LLVM_VERSION }}
-
name
:
Build
run
:
|
export SDKROOT="$(xcrun --show-sdk-path)"
# Set MACOSX_DEPLOYMENT_TARGET and -Werror=unguarded-availability to
# make sure we don't break downstream distributors (like uv):
export CFLAGS_JIT='-Werror=unguarded-availability'
export MACOSX_DEPLOYMENT_TARGET=10.15
./configure --enable-experimental-jit --enable-universalsdk --with-universal-archs=universal2 ${{ matrix.debug && '--with-pydebug' || '' }}
make all --jobs 4
-
name
:
Test
run
:
|
./python.exe -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
linux
:
name
:
${{ matrix.target }} (${{ matrix.debug && 'Debug' || 'Release' }})
runs-on
:
${{ matrix.runner }}
timeout-minutes
:
60
strategy
:
fail-fast
:
false
matrix
:
target
:
-
x86_64-unknown-linux-gnu/gcc
-
aarch64-unknown-linux-gnu/gcc
debug
:
-
true
-
false
include
:
-
target
:
x86_64-unknown-linux-gnu/gcc
runner
:
ubuntu-26.04
-
target
:
aarch64-unknown-linux-gnu/gcc
runner
:
ubuntu-26.04-arm
steps
:
-
uses
:
actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
#
v7.0.0
with
:
persist-credentials
:
false
-
uses
:
actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
#
v6.2.0
with
:
python-version
:
'
3.11
'
-
name
:
Install dependencies
run
:
|
sudo ./.github/workflows/posix-deps-apt.sh
-
name
:
Build
run
:
|
# On ubuntu-26.04 image, clang is clang-21 by default
./configure --enable-experimental-jit ${{ matrix.debug && '--with-pydebug' || '' }}
make all --jobs 4
-
name
:
Test
run
:
|
./python -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
linux-extras
:
name
:
${{ matrix.name }}
runs-on
:
ubuntu-26.04
timeout-minutes
:
60
strategy
:
fail-fast
:
false
matrix
:
include
:
-
name
:
Free-Threaded (Debug)
configure_flags
:
--enable-experimental-jit --with-pydebug --disable-gil
continue_on_error
:
true
-
name
:
JIT without optimizations (Debug)
configure_flags
:
--enable-experimental-jit --with-pydebug
test_env
:
"
PYTHON_UOPS_OPTIMIZE=0
"
-
name
:
JIT with stress testing (Debug)
configure_flags
:
--enable-experimental-jit --with-pydebug
test_env
:
"
PYTHON_JIT_STRESS=1
"
-
name
:
JIT with tail calling interpreter
configure_flags
:
--enable-experimental-jit --with-tail-call-interp --with-pydebug
use_clang
:
true
run_tests
:
false
steps
:
-
uses
:
actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
#
v7.0.0
with
:
persist-credentials
:
false
-
uses
:
actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
#
v6.2.0
with
:
python-version
:
'
3.11
'
-
name
:
Install dependencies
run
:
|
sudo ./.github/workflows/posix-deps-apt.sh
-
name
:
Build
run
:
|
# On ubuntu-26.04 image, clang is clang-21 by default
if [ "${{ matrix.use_clang }}" = "true" ]; then
export CC=clang-${{ env.LLVM_VERSION }}
fi
./configure ${{ matrix.configure_flags }}
make all --jobs 4
-
name
:
Test
if
:
matrix.run_tests != false
run
:
|
${{ matrix.test_env }} ./python -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
continue-on-error
:
${{ matrix.continue_on_error }}
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