ilusha/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython synced 2026-09-29 11:30:29 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

gh-118335: Configure Tier 2 interpreter at build time (#118339)

Browse source 
The code for Tier 2 is now only compiled when configured
with `--enable-experimental-jit[=yes|interpreter]`.

We drop support for `PYTHON_UOPS` and -`Xuops`,
but you can disable the interpreter or JIT
at runtime by setting `PYTHON_JIT=0`.
You can also build it without enabling it by default
using `--enable-experimental-jit=yes-off`;
enable with `PYTHON_JIT=1`.

On Windows, the `build.bat` script supports
`--experimental-jit`, `--experimental-jit-off`,
`--experimental-interpreter`.

In the C code, `_Py_JIT` is defined as before
when the JIT is enabled; the new variable
`_Py_TIER2` is defined when the JIT *or* the
interpreter is enabled. It is actually a bitmask:
1: JIT; 2: default-off; 4: interpreter.
This commit is contained in:
Guido van Rossum 2024-04-30 18:26:34 -07:00 • committed by GitHub
parent 9c468e2c5d
commit 7d83f7bcc4
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
32 changed files with 181 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

6
PCbuild/_testinternalcapi.vcxproj
View file

@ -108,6 +108,12 @@
<ReferenceOutputAssembly>false</ReferenceOutputAssembly>
</ProjectReference>
</ItemGroup>
<ItemDefinitionGroup>
<ClCompile>
<PreprocessorDefinitions Condition="'$(UseJIT)' == 'true'">_Py_JIT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions Condition="'$(UseTIER2)' != '0'">_Py_TIER2=$(UseTIER2);%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ClCompile>
</ItemDefinitionGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>

11
PCbuild/build.bat
View file

@ -36,7 +36,9 @@ echo. overrides -c and -d
echo. --disable-gil Enable experimental support for running without the GIL.
echo. --test-marker Enable the test marker within the build.
echo. --regen Regenerate all opcodes, grammar and tokens.
echo. --experimental-jit Enable the experimental just-in-time compiler.
echo. --experimental-jit Enable the experimental just-in-time compiler.
echo. --experimental-jit-off Ditto but off by default (PYTHON_JIT=1 enables).
echo. --experimental-interpreter Enable the experimental Tier 2 interpreter.
echo.
echo.Available flags to avoid building certain modules.
echo.These flags have no effect if '-e' is not given:
@ -66,6 +68,7 @@ set verbose=/nologo /v:m /clp:summary
set kill=
set do_pgo=
set pgo_job=-m test --pgo
set UseTIER2=0
:CheckOpts
if "%~1"=="-h" goto Usage
@ -86,7 +89,10 @@ if "%~1"=="--disable-gil" (set UseDisableGil=true) & shift & goto CheckOpts
if "%~1"=="--test-marker" (set UseTestMarker=true) & shift & goto CheckOpts
if "%~1"=="-V" shift & goto Version
if "%~1"=="--regen" (set Regen=true) & shift & goto CheckOpts
if "%~1"=="--experimental-jit" (set UseJIT=true) & shift & goto CheckOpts
if "%~1"=="--experimental-jit" (set UseJIT=true) & (set UseTIER2=1) & shift & goto CheckOpts
if "%~1"=="--experimental-jit-off" (set UseJIT=true) & (set UseTIER2=3) & shift & goto CheckOpts
if "%~1"=="--experimental-interpreter" (set UseTIER2=4) & shift & goto CheckOpts
if "%~1"=="--experimental-interpreter-off" (set UseTIER2=6) & shift & goto CheckOpts
rem These use the actual property names used by MSBuild. We could just let
rem them in through the environment, but we specify them on the command line
rem anyway for visibility so set defaults after this
@ -179,6 +185,7 @@ echo on
/p:DisableGil=%UseDisableGil%^
/p:UseTestMarker=%UseTestMarker% %GITProperty%^
/p:UseJIT=%UseJIT%^
/p:UseTIER2=%UseTIER2%^
%1 %2 %3 %4 %5 %6 %7 %8 %9
@echo off

1
PCbuild/pythoncore.vcxproj
View file

@ -105,6 +105,7 @@
<PreprocessorDefinitions>_USRDLL;Py_BUILD_CORE;Py_BUILD_CORE_BUILTIN;Py_ENABLE_SHARED;MS_DLL_ID="$(SysWinVer)";%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions Condition="$(IncludeExternals)">_Py_HAVE_ZLIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions Condition="'$(UseJIT)' == 'true'">_Py_JIT;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<PreprocessorDefinitions Condition="'$(UseTIER2)' != '0'">_Py_TIER2=$(UseTIER2);%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ClCompile>
<Link>
<AdditionalDependencies>version.lib;ws2_32.lib;pathcch.lib;bcrypt.lib;%(AdditionalDependencies)</AdditionalDependencies>