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* gh-118518: Allow perf to work without frame pointers (#112254)Pablo Galindo Salgado2024-05-051-0/+1
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* gh-117494: extract the Instruction Sequence data structure into a separate ↵Irit Katriel2024-04-041-0/+1
| | | | file (#117496)
* gh-76785: Add PyInterpreterConfig Helpers (gh-117170)Eric Snow2024-04-021-0/+1
| | | These helpers make it easier to customize and inspect the config used to initialize interpreters. This is especially valuable in our tests. I found inspiration from the PyConfig API for the PyInterpreterConfig dict conversion stuff. As part of this PR I've also added a bunch of tests.
* gh-76785: Drop PyInterpreterID_Type (gh-117101)Eric Snow2024-03-211-1/+0
| | | I added it quite a while ago as a strategy for managing interpreter lifetimes relative to the PEP 554 (now 734) implementation. Relatively recently I refactored that implementation to no longer rely on InterpreterID objects. Thus now I'm removing it.
* gh-108716: Cleanup remaining deepfreeze infrastructure (#116919)Guido van Rossum2024-03-181-19/+0
| | | | | Keep Tools/build/deepfreeze.py around (we may repurpose it for deepfreezing non-code objects), and keep basic "clean" targets that remove the output of former deep-freeze activities, to keep the build directories of current devs clean.
* GH-115816: Make tier2 optimizer symbols testable, and add a few tests. ↵Mark Shannon2024-02-271-0/+1
| | | | (GH-115953)
* gh-115103: Implement delayed memory reclamation (QSBR) (#115180)Sam Gross2024-02-161-0/+1
| | | | | | This adds a safe memory reclamation scheme based on FreeBSD's "GUS" and quiescent state based reclamation (QSBR). The API provides a mechanism for callers to detect when it is safe to free memory that may be concurrently accessed by readers.
* gh-110481: Implement inter-thread queue for biased reference counting (#114824)Sam Gross2024-02-091-0/+1
| | | | | | | | | Biased reference counting maintains two refcount fields in each object: `ob_ref_local` and `ob_ref_shared`. The true refcount is the sum of these two fields. In some cases, when refcounting operations are split across threads, the ob_ref_shared field can be negative (although the total refcount must be at least zero). In this case, the thread that decremented the refcount requests that the owning thread give up ownership and merge the refcount fields.
* GH-113464: Add a JIT backend for tier 2 (GH-113465)Brandt Bucher2024-01-291-0/+1
| | | | | | | Add an option (--enable-experimental-jit for configure-based builds or --experimental-jit for PCbuild-based ones) to build an *experimental* just-in-time compiler, based on copy-and-patch (https://fredrikbk.com/publications/copy-and-patch.pdf). See Tools/jit/README.md for more information on how to install the required build-time tooling.
* gh-112529: Implement GC for free-threaded builds (#114262)Sam Gross2024-01-251-0/+1
| | | | | | | * gh-112529: Implement GC for free-threaded builds This implements a mark and sweep GC for the free-threaded builds of CPython. The implementation relies on mimalloc to find GC tracked objects (i.e., "containers").
* gh-111968: Introduce _PyFreeListState and _PyFreeListState_GET API (gh-113584)Donghee Na2024-01-091-0/+2
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* gh-113688: Split up gcmodule.c (gh-113715)Sam Gross2024-01-051-0/+1
| | | | | This splits part of Modules/gcmodule.c of into Python/gc.c, which now contains the core garbage collection implementation. The Python module remain in the Modules/gcmodule.c file.
* gh-113258: Write frozen modules to the build tree on Windows (GH-113303)Itamar Oren2024-01-031-49/+49
| | | This ensures the source directory is not modified at build time, and different builds (e.g. different versions or GIL vs no-GIL) do not have conflicts.
* gh-111650: Ensure pyconfig.h includes Py_GIL_DISABLED on Windows (GH-112778)Steve Dower2023-12-131-0/+30
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* gh-111569: Implement Python critical section API (gh-111571)Sam Gross2023-11-081-0/+3
| | | | | | | | Critical sections are helpers to replace the global interpreter lock with finer grained locking. They provide similar guarantees to the GIL and avoid the deadlock risk that plain locking involves. Critical sections are implicitly ended whenever the GIL would be released. They are resumed when the GIL would be acquired. Nested critical sections behave as if the sections were interleaved.
* gh-111520: Integrate the Tier 2 interpreter in the Tier 1 interpreter (#111428)Guido van Rossum2023-11-011-1/+0
| | | | | | | | | | | - There is no longer a separate Python/executor.c file. - Conventions in Python/bytecodes.c are slightly different -- don't use `goto error`, you must use `GOTO_ERROR(error)` (same for others like `unused_local_error`). - The `TIER_ONE` and `TIER_TWO` symbols are only valid in the generated (.c.h) files. - In Lib/test/support/__init__.py, `Py_C_RECURSION_LIMIT` is imported from `_testcapi`. - On Windows, in debug mode, stack allocation grows from 8MiB to 12MiB. - **Beware!** This changes the env vars to enable uops and their debugging to `PYTHON_UOPS` and `PYTHON_LLTRACE`.
* gh-90815: Exclude mimalloc .c files from Windows build (#111532)Dino Viehland2023-10-311-14/+0
| | | | * Don't include mimalloc .c's in Windows build * Fix warnings on Windows related to mimalloc
* gh-76785: Move the Cross-Interpreter Code to Its Own File (gh-111502)Eric Snow2023-10-301-0/+1
| | | This is partly to clear this stuff out of pystate.c, but also in preparation for moving some code out of _xxsubinterpretersmodule.c. This change also moves this stuff to the internal API (new: Include/internal/pycore_crossinterp.h). @vstinner did this previously and I undid it. Now I'm re-doing it. :/
* gh-109515: When generating deep frozen modules on Windows, use a list file ↵Riccardo Ghetta2023-10-301-25/+39
| | | | instead of arguments (GH-109516)
* gh-90815: Add mimalloc memory allocator (#109914)Dino Viehland2023-10-301-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add mimalloc v2.12 Modified src/alloc.c to remove include of alloc-override.c and not compile new handler. Did not include the following files: - include/mimalloc-new-delete.h - include/mimalloc-override.h - src/alloc-override-osx.c - src/alloc-override.c - src/static.c - src/region.c mimalloc is thread safe and shares a single heap across all runtimes, therefore finalization and getting global allocated blocks across all runtimes is different. * mimalloc: minimal changes for use in Python: - remove debug spam for freeing large allocations - use same bytes (0xDD) for freed allocations in CPython and mimalloc This is important for the test_capi debug memory tests * Don't export mimalloc symbol in libpython. * Enable mimalloc as Python allocator option. * Add mimalloc MIT license. * Log mimalloc in Lib/test/pythoninfo.py. * Document new mimalloc support. * Use macro defs for exports as done in: https://github.com/python/cpython/pull/31164/ Co-authored-by: Sam Gross <colesbury@gmail.com> Co-authored-by: Christian Heimes <christian@python.org> Co-authored-by: Victor Stinner <vstinner@python.org>
* gh-104169: Refactor tokenizer into lexer and wrappers (#110684)Lysandros Nikolaou2023-10-111-1/+8
| | | | | | | | | | | * The lexer, which include the actual lexeme producing logic, goes into the `lexer` directory. * The wrappers, one wrapper per input mode (file, string, utf-8, and readline), go into the `tokenizer` directory and include logic for creating a lexer instance and managing the buffer for different modes. --------- Co-authored-by: Pablo Galindo <pablogsal@gmail.com> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* gh-107557: Setup abstract interpretation (#107847)Ken Jin2023-08-151-0/+1
| | | | Co-authored-by: Guido van Rossum <gvanrossum@users.noreply.github.com> Co-authored-by: Jules <57632293+juliapoo@users.noreply.github.com>
* GH-106701: Move _PyUopExecute to Python/executor.c (GH-106924)Brandt Bucher2023-07-201-0/+1
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* GH-104584: Plugin optimizer API (GH-105100)Mark Shannon2023-06-021-0/+1
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* GH-101520: Move tracemalloc functionality into core, leaving interface in ↵Mark Shannon2023-05-171-0/+1
| | | | Modules. (#104508)
* gh-103763: Implement PEP 695 (#103764)Jelle Zijlstra2023-05-161-0/+1
| | | | | | | | | | | | | | This implements PEP 695, Type Parameter Syntax. It adds support for: - Generic functions (def func[T](): ...) - Generic classes (class X[T](): ...) - Type aliases (type X = ...) - New scoping when the new syntax is used within a class body - Compiler and interpreter changes to support the new syntax and scoping rules Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com> Co-authored-by: Eric Traut <eric@traut.com> Co-authored-by: Larry Hastings <larry@hastings.org> Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
* GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython ↵Mark Shannon2023-04-121-0/+2
| | | | | | | | | | (GH-103083) * The majority of the monitoring code is in instrumentation.c * The new instrumentation bytecodes are in bytecodes.c * legacy_tracing.c adapts the new API to the old sys.setrace and sys.setprofile APIs
* gh-87092: move assembler related code from compile.c to assemble.c (#103277)Irit Katriel2023-04-111-1/+2
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* gh-87092: move CFG related code from compile.c to flowgraph.c (#103021)Irit Katriel2023-03-311-0/+1
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* GH-99005: Add `CALL_INTRINSIC_1` instruction (GH-100771)Mark Shannon2023-01-051-0/+1
| | | | | | | | * Remove PRINT_EXPR instruction * Remove STOPITERATION_ERROR instruction * Remove IMPORT_STAR instruction
* gh-81057: Move time Globals to _PyRuntimeState (gh-100122)Eric Snow2022-12-081-0/+1
| | | https://github.com/python/cpython/issues/81057
* gh-96143: Move the perf trampoline files to the Python directory (#98675)Pablo Galindo Salgado2022-10-251-1/+1
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* gh-97669: Create Tools/build/ directory (#97963)Victor Stinner2022-10-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | Create Tools/build/ directory. Move the following scripts from Tools/scripts/ to Tools/build/: * check_extension_modules.py * deepfreeze.py * freeze_modules.py * generate_global_objects.py * generate_levenshtein_examples.py * generate_opcode_h.py * generate_re_casefix.py * generate_sre_constants.py * generate_stdlib_module_names.py * generate_token.py * parse_html5_entities.py * smelly.py * stable_abi.py * umarshal.py * update_file.py * verify_ensurepip_wheels.py Update references to these scripts.
* gh-94781: Fix Windows projects not cleaning intermediate and output files ↵Charlie Zhao2022-09-071-0/+4
| | | | for frozen modules (GH-96423)
* gh-96143: Allow Linux perf profiler to see Python calls (GH-96123)Pablo Galindo Salgado2022-08-301-0/+1
| | | | | | | :warning: :warning: Note for reviewers, hackers and fellow systems/low-level/compiler engineers :warning: :warning: If you have a lot of experience with this kind of shenanigans and want to improve the **first** version, **please make a PR against my branch** or **reach out by email** or **suggest code changes directly on GitHub**. If you have any **refinements or optimizations** please, wait until the first version is merged before starting hacking or proposing those so we can keep this PR productive.
* GH-96177: Move GIL and eval breaker code out of ceval.c into ceval_gil.c. ↵Mark Shannon2022-08-241-0/+1
| | | | (GH-96204)
* gh-95005: Replace PyAccu with PyUnicodeWriter (gh-95006)Aivars Kalvāns2022-07-271-1/+0
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* bpo-46429: Merge all deepfrozen files into one (GH-30572)Kumar Aditya2022-01-201-59/+30
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* bpo-46123: Disable optimizations for _freeze_module.exe on MSVC for faster ↵neonene2021-12-191-0/+3
| | | | building (GH-30181)
* bpo-46088: Automatically detect or install bootstrap Python runtime when ↵Steve Dower2021-12-181-1/+4
| | | | building from Visual Studio (GH-30143)
* bpo-45654: No need to freeze types (GH-30028)Christian Heimes2021-12-101-7/+0
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* bpo-45582: Fix test_embed failure during a PGO build on Windows (GH-30014)neonene2021-12-101-1/+3
| | | This defines VPATH differently in PGO instrumentation builds, to account for a different default output directory. It also adds sys._vpath on Windows to make the value available to sysconfig so that it can be used in tests.
* bpo-45654: Freeze the runpy module and stuff it imports (GH-29903)Kumar Aditya2021-12-091-0/+28
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* bpo-45582: Fix out-of-tree build issues with new getpath (GH-29902)Christian Heimes2021-12-031-1/+1
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* bpo-45582: Port getpath[p].c to Python (GH-29041)Steve Dower2021-12-031-1/+21
| | | | | The getpath.py file is frozen at build time and executed as code over a namespace. It is never imported, nor is it meant to be importable or reusable. However, it should be easier to read, modify, and patch than the previous code. This commit attempts to preserve every previously tested quirk, but these may be changed in the future to better align platforms.
* bpo-45850: Implement deep-freeze on Windows (#29648)Guido van Rossum2021-11-221-3/+55
| | | | | | Implement changes to build with deep-frozen modules on Windows. Note that we now require Python 3.10 as the "bootstrap" or "host" Python. This causes a modest startup speed (around 7%) on Windows.
* Refactor parser compilation units into specific components (GH-29676)Pablo Galindo Salgado2021-11-211-0/+2
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* bpo-45720: Drop references to shlwapi.dll on Windows (GH-29417)Steve Dower2021-11-051-1/+1
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* bpo-45020: Add more test cases for frozen modules. (gh-28664)Eric Snow2021-10-011-0/+25
| | | | | I've added a number of test-only modules. Some of those cases are covered by the recently frozen stdlib modules (and some will be once we add encodings back in). However, I figured we'd play it safe by having a set of modules guaranteed to be there during tests. https://bugs.python.org/issue45020
* bpo-45020: Fix some corner cases for frozen module generation. (gh-28538)Eric Snow2021-09-241-4/+4
| | | | | This also includes some cleanup in preparation for a PR to make the "make all" output less noisy. https://bugs.python.org/issue45020
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