Commit Graph

267 Commits

Author SHA1 Message Date
Mark Shannon f6f4e8a662
GH-132554: "Virtual" iterators (GH-132555)
* FOR_ITER now pushes either the iterator and NULL or leaves the iterable and pushes tagged zero

* NEXT_ITER uses the tagged int as the index into the sequence or, if TOS is NULL, iterates as before.
2025-05-27 15:59:45 +01:00
Peter Bierma b8998fe2d8
gh-131185: Use a proper thread-local for cached thread states (gh-132510)
Switches over to a _Py_thread_local in place of autoTssKey, and also fixes a few other checks regarding PyGILState_Ensure after finalization.

Note that this doesn't fix concurrent use of PyGILState_Ensure with Py_Finalize; I'm pretty sure zapthreads doesn't work at all, and that needs to be fixed seperately.
2025-05-21 07:01:25 -06:00
Peter Bierma 27bd08273c
Revert "gh-128639: Don't assume one thread in subinterpreter finalization (gh-128640)" (gh-134256)
This reverts commit 9859791f9e.

The original change broke the iOS and android buildbots, where the tests are run single-process.
2025-05-19 12:22:05 -06:00
Peter Bierma 9859791f9e
gh-128639: Don't assume one thread in subinterpreter finalization (gh-128640)
Incidentally, this also fixed the warning not showing up if a subinterpreter wasn't
cleaned up via _interpreters.destroy. I had to update some of the tests as a result.
2025-05-19 10:24:08 -06:00
Victor Stinner 6d9ec4e9d7
gh-133644: Avoid deprecated Py_SetProgramName() in _testembed.c (#133665)
* Rename _testembed_Py_InitializeFromConfig() to
  _testembed_initialize().
* Replace _testembed_Py_Initialize() with _testembed_initialize().
2025-05-09 17:50:21 +02:00
Noah Kim c4bcc6a778
gh-102567: Add -X importtime=2 for logging an importtime message for already-loaded modules (#118655)
Co-authored-by: Adam Turner <9087854+aa-turner@users.noreply.github.com>
2025-05-06 01:03:55 +01:00
Lysandros Nikolaou 60202609a2
gh-132661: Implement PEP 750 (#132662)
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Wingy <git@wingysam.xyz>
Co-authored-by: Koudai Aono <koxudaxi@gmail.com>
Co-authored-by: Dave Peck <davepeck@gmail.com>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Paul Everitt <pauleveritt@me.com>
Co-authored-by: sobolevn <mail@sobolevn.me>
2025-04-30 11:46:41 +02:00
mpage 053c285f6b
gh-130704: Strength reduce `LOAD_FAST{_LOAD_FAST}` (#130708)
Optimize `LOAD_FAST` opcodes into faster versions that load borrowed references onto the operand stack when we can prove that the lifetime of the local outlives the lifetime of the temporary that is loaded onto the stack.
2025-04-01 10:18:42 -07:00
Mark Shannon 83d54fa876
GH-130296: Remove `_PyOpcode_max_stack_effect` as it is no longer used (GH-131493) 2025-03-20 11:42:54 +00:00
Yan Yanchii 75103d975c
gh-126835: Move constant tuple folding from ast_opt to CFG (#130769) 2025-03-19 20:59:55 +00:00
Yan Yanchii 55815a6474
gh-130480: Move duplicate `LOAD_SMALL_INT` optimization from codegen to CFG (#130481) 2025-03-14 21:23:27 +00:00
Mark Shannon 89df62c120
GH-128534: Fix behavior of branch monitoring for `async for` (GH-130847)
* Both branches in a pair now have a common source and are included in co_branches
2025-03-07 14:30:31 +00:00
Tomasz Pytel aeb2327386
gh-130574: renumber RESUME opcode from 149 to 128 (GH-130685) 2025-03-06 08:59:36 +00:00
Irit Katriel a1417b211f
gh-100239: replace BINARY_SUBSCR & family by BINARY_OP with oparg NB_SUBSCR (#129700) 2025-02-07 22:39:54 +00:00
Mark Shannon 75b4962157
GH-128914: Remove all but one conditional stack effects (GH-129226)
* Remove all 'if (0)' and 'if (1)' conditional stack effects

* Use array instead of conditional for BUILD_SLICE args

* Refactor LOAD_GLOBAL to use a common conditional uop

* Remove conditional stack effects from LOAD_ATTR specializations

* Replace conditional stack effects in LOAD_ATTR with a 0 or 1 sized array.

* Remove conditional stack effects from CALL_FUNCTION_EX
2025-01-27 16:24:48 +00:00
Sam Gross a10f99375e
Revert "GH-128914: Remove conditional stack effects from `bytecodes.c` and the code generators (GH-128918)" (GH-129202)
The commit introduced a ~2.5-3% regression in the free threading build.

This reverts commit ab61d3f430.
2025-01-23 09:26:25 +00:00
Mark Shannon ab61d3f430
GH-128914: Remove conditional stack effects from `bytecodes.c` and the code generators (GH-128918) 2025-01-20 17:09:23 +00:00
Victor Stinner 8ceb6cb117
gh-129033: Remove _PyInterpreterState_SetConfig() function (#129048)
Remove _PyInterpreterState_GetConfigCopy() and
_PyInterpreterState_SetConfig() private functions. PEP 741 "Python
Configuration C API" added a better public C API: PyConfig_Get() and
PyConfig_Set().
2025-01-20 16:31:33 +01:00
Victor Stinner 07c3518ffb
gh-129033: Remove _Py_InitializeMain() function (#129034)
Co-authored-by: Alyssa Coghlan <ncoghlan@gmail.com>
2025-01-20 10:03:22 +00:00
Mark Shannon f826beca0c
GH-128375: Better instrument for `FOR_ITER` (GH-128445) 2025-01-06 17:54:47 +00:00
Mark Shannon d2f1d917e8
GH-122548: Implement branch taken and not taken events for sys.monitoring (GH-122564) 2024-12-19 16:59:51 +00:00
Donghee Na 48c70b8f7d
gh-115999: Enable BINARY_SUBSCR_GETITEM for free-threaded build (gh-127737) 2024-12-19 11:08:17 +09:00
Petr Viktorin d00f7b1b9d
gh-125063: marshal: Add version 5, improve documentation (GH-126829)
* Document that slices can be marshalled
* Deduplicate and organize the list of supported types
  in docs
* Organize the type code list in marshal.c, to make
  it more obvious that this is a versioned format
* Back-fill some historical info

Co-authored-by: Michael Droettboom <mdboom@gmail.com>
2024-11-15 13:48:57 +01:00
Mark Shannon faa3272fb8
GH-125837: Split `LOAD_CONST` into three. (GH-125972)
* Add LOAD_CONST_IMMORTAL opcode

* Add LOAD_SMALL_INT opcode

* Remove RETURN_CONST opcode
2024-10-29 11:15:42 +00:00
sobolevn c8a1818fb0
gh-125517: Fix unreachable code warnings in `_testembed.c` (#125518) 2024-10-15 13:12:32 +00:00
RUANG (Roy James) 546dddca43
gh-125234: Make PyInitConfig_Free(NULL) a no-op (#125266) 2024-10-15 09:21:16 +00:00
Alyssa Coghlan 7c4b6a68f2
bpo-34206: Improve docs and test coverage for pre-init functions (#8023)
- move the Py_Main documentation from the very high level API section
  to the initialization and finalization section
- make it clear that it encapsulates a full Py_Initialize/Finalize
  cycle of its own
- point out that exactly which settings will be read and applied
  correctly when Py_Main is called after a separate runtime
  initialization call is version dependent
- be explicit that Py_IsInitialized can be called prior to
  initialization
- actually test that Py_IsInitialized can be called prior to
  initialization
- flush stdout in the embedding tests that run code so it appears
  in the expected order when running with "-vv"
- make "-vv" on the subinterpreter embedding tests less spammy

---------

Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
2024-10-08 08:34:11 +00:00
Pablo Galindo Salgado 02b49c5150
gh-107954: Fix configuration type for the perf profiler (#124636) 2024-09-28 01:50:16 +02:00
luk1337 7331d0f70b
gh-124160: Pass main_tstate to update_global_state_for_extension() (#124164) 2024-09-19 21:35:20 +05:30
sobolevn c8d1dbef5b
gh-123919: Fix null handling in `_freeze_module.c` (#123920) 2024-09-11 19:07:35 +05:30
Victor Stinner 0d6b6e34a2
gh-107954, PEP 741: Add PyInitConfig_AddModule() function (#123668) 2024-09-04 11:41:57 +00:00
Victor Stinner b423ae6b08
gh-107954, PEP 741: Adjust Python initialization config (#123663)
Setting dev_mode to 1 in an isolated configuration now enables also
faulthandler.

Moreover, setting "module_search_paths" option with
PyInitConfig_SetStrList() now sets "module_search_paths_set" to 1.
2024-09-04 10:58:32 +00:00
Victor Stinner ef9d54703f
gh-107954, PEP 741: Add PyInitConfig C API (#123502)
Add Doc/c-api/config.rst documentation.
2024-09-03 12:33:49 +00:00
Sam Gross d061ffea7b
gh-123022: Fix crash with `Py_Initialize` in background thread (#123052)
Check that the current default heap is initialized in
`_mi_os_get_aligned_hint` and `mi_os_claim_huge_pages`.

The mimalloc function `_mi_os_get_aligned_hint` assumes that there is an
initialized default heap. This is true for our main thread, but not for
background threads. The problematic code path is usually called during
initialization (i.e., `Py_Initialize`), but it may also be called if the
program allocates large amounts of memory in total.

The crash only affected the free-threaded build.
2024-08-17 16:04:08 -04:00
Mark Shannon 7a65439b93
GH-122390: Replace `_Py_GetbaseOpcode` with `_Py_GetBaseCodeUnit` (GH-122942) 2024-08-13 14:22:57 +01:00
Eric Snow 490e0ad83a
gh-117482: Fix the Slot Wrapper Inheritance Tests (gh-122248)
The tests were only checking cases where the slot wrapper was present in the initial case.  They were missing when the slot wrapper was added in the additional initializations.  This fixes that.
2024-07-29 10:23:23 -06:00
Mark Shannon 2e14a52cce
GH-122160: Remove BUILD_CONST_KEY_MAP opcode. (GH-122164) 2024-07-25 16:24:29 +01:00
Mark Shannon 9cefcc0ee7
GH-120507: Lower the `BEFORE_WITH` and `BEFORE_ASYNC_WITH` instructions. (#120640)
* Remove BEFORE_WITH and BEFORE_ASYNC_WITH instructions.

* Add LOAD_SPECIAL instruction

* Reimplement `with` and `async with` statements using LOAD_SPECIAL
2024-06-18 12:17:46 +01:00
Irit Katriel 97b69db167
gh-93691: fix too broad source locations of for statement iterators (#120330) 2024-06-12 12:53:19 +01:00
Jelle Zijlstra 98e855fcc1
gh-119180: Add LOAD_COMMON_CONSTANT opcode (#119321)
The PEP 649 implementation will require a way to load NotImplementedError
from the bytecode. @markshannon suggested implementing this by converting
LOAD_ASSERTION_ERROR into a more general mechanism for loading constants.

This PR adds this new opcode. I will work on the rest of the implementation
of the PEP separately.

Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>
2024-05-22 00:46:39 +00:00
Sam Gross 2ba2c142a6
gh-118527: Intern code name and filename on default build (#118576)
Interned and non-interned strings are treated differently by `marshal`,
so be consistent between the default and free-threaded build.
2024-05-06 17:24:14 -04:00
Guido van Rossum 4c7bfdff90
Remove more remnants of deepfreeze (#118159) 2024-04-22 12:17:57 -07:00
Victor Stinner 340a02b590
gh-117987: Restore several functions removed in Python 3.13 alpha 1 (GH-117993)
Restore these functions removed in Python 3.13 alpha 1:

* Py_SetPythonHome()
* Py_SetProgramName()
* PySys_SetArgvEx()
* PySys_SetArgv()
2024-04-18 15:20:38 +02:00
Mark Shannon 981d172f7f
GH-112354: `END_FOR` instruction to only pop one value. (GH-114247)
* Compiler emits END_FOR; POP_TOP instead of END_FOR. To support tier 2 side exits in loops.
2024-01-24 15:10:17 +00:00
Sam Gross fdee7b7b3e
gh-112532: Require mimalloc in `--disable-gil` builds (gh-112883) 2023-12-12 09:04:48 +09:00
Irit Katriel d49aba5a7a
gh-111354: Simplify _PyGen_yf by moving some of its work to the compiler and frame state (#111648) 2023-11-03 10:01:36 +00:00
Irit Katriel 52cc4af6ae
gh-111354: simplify detection of RESUME after YIELD_VALUE at except-depth 1 (#111459) 2023-11-02 10:18:43 +00:00
Donghee Na 0362cbf908
gh-109595: Add -Xcpu_count=<n> cmdline for container users (#109667)
---------

Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Gregory P. Smith [Google LLC] <greg@krypto.org>
2023-10-10 19:00:09 +09:00
Victor Stinner bb057b3370
gh-85283: Add PySys_AuditTuple() function (#108965)
sys.audit() now has assertions to check that the event argument is
not NULL and that the format argument does not use the "N" format.

Add tests on PySys_AuditTuple().
2023-10-05 21:59:35 +00:00
Brandt Bucher 22e65eecaa
GH-105848: Replace KW_NAMES + CALL with LOAD_CONST + CALL_KW (GH-109300) 2023-09-13 10:25:45 -07:00