Kevin Huai
f5364ae750
gh-145866: Convert _CALL_INTRINSIC_2 to leave its inputs on the stack to be cleaned up by _POP_TOP (GH-146262)
2026-03-26 17:41:07 +08:00
Kumar Aditya
495178ab05
gh-146453: fix _PyType_LookupByVersion for types with fixed pre-defined version tags ( #146454 )
2026-03-26 14:36:55 +05:30
Pieter Eendebak
951675c18a
gh-146306: JIT: Optimize float operations by mutating uniquely-referenced operands in place (GH-146307)
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-24 21:16:02 +08:00
Neko Asakura
6d73bc2267
gh-145866: Convert DICT_MERGE to leave its inputs on the stack to be cleaned up by _POP_TOP (GH-146329)
2026-03-24 18:31:41 +08:00
reiden
e36f8db7e5
gh-143414: Implement unique reference tracking for JIT, optimize unpacking of such tuples (GH-144300)
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Co-authored-by: Ken Jin <kenjin4096@gmail.com>
2026-03-23 00:57:23 +08:00
Ken Jin
acfb4528de
gh-146099: Optimize _GUARD_CODE_VERSION+IP via function version symbols (GH-146101)
2026-03-20 12:26:41 +00:00
Mingzhu Yan
98977ca433
gh-131798: JIT: optimize _LOAD_COMMON_CONSTANT (GH-146104)
2026-03-20 05:55:22 +08:00
Serhiy Storchaka
ab47892c32
Improve tests for the PyUnicodeWriter C API (GH-146157)
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Add tests for corner cases: NULL pointers and out of range values.
2026-03-19 19:15:30 +02:00
Sacul
0d37e423d5
gh-145866: Convert SET_UPDATE to leave its inputs on the stack to be cleaned up by _POP_TOP (GH-145979)
2026-03-19 19:17:58 +08:00
Serhiy Storchaka
0f2246b155
gh-146056: Fix list.__repr__() for lists containing NULLs (GH-146129)
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Co-authored-by: Victor Stinner <vstinner@python.org>
2026-03-19 09:59:48 +02:00
Sacul
1efd9939c8
gh-131798: Optimize _ITER_CHECK_RANGE and _ITER_CHECK_LIST in the JIT (GH-144583)
2026-03-17 22:07:17 +08:00
Ken Jin
3d0824aef2
gh-127958: Trace from RESUME in the JIT (GH-145905)
2026-03-17 00:18:59 +08:00
Sacul
37121ef77e
gh-145866: Convert CALL_INTRINSIC_1 to leave its inputs on the stack to be cleaned up by _POP_TOP. (GH-145964)
2026-03-16 11:58:12 +00:00
AN Long
6f8867a676
gh-129849: Add tests for Py_tp_bases ( #143208 )
2026-03-16 13:59:55 +05:30
Sacul
798070d8ca
gh-134584: Eliminate redundant refcounting in JIT for MATCH_CLASS (GH-144821)
2026-03-14 12:00:18 +00:00
Hai Zhu
f062014d38
gh-144540: Add _MAKE_HEAP_SAFE uop to eliminate unnecessary refcount operations in RETURN_VALUE and YIELD_VALUE (GH-144414)
2026-03-11 20:24:19 +00:00
Victor Stinner
713be70175
gh-141510: Raise TypeError in PyDict_SetItem() on frozendict ( #145564 )
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If the following functions get an unexpected frozendict,
raise TypeError instead of SystemError:
* PyDict_DelItem()
* PyDict_DelItemString()
* PyDict_Merge()
* PyDict_MergeFromSeq2()
* PyDict_Pop()
* PyDict_PopString()
* PyDict_SetDefault()
* PyDict_SetDefaultRef()
* PyDict_SetItem()
* PyDict_SetItemString()
* _PyDict_SetItem_KnownHash()
* PyDict_Update()
Co-authored-by: mohsinm-dev <mohsin.mdev@gmail.com>
2026-03-11 17:05:09 +01:00
Sergey Miryanov
478a315b7a
GH-145247: Implement _PyTuple_FromPair() ( #145325 )
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Implement _PyTuple_FromPair() and _PyTuple_FromPairSteal().
Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Bartosz Sławecki <bartosz@ilikepython.com>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
2026-03-10 11:44:20 +01:00
Hai Zhu
66eafc9ea7
gh-144681: Fix JIT trace builder assertion failure when conditional branch jump target coincides with fallthrough target (GH-144742)
2026-03-10 12:12:48 +08:00
Victor Stinner
0dfe649400
gh-141510: Optimize frozendict(frozendict) ( #145592 )
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Return the same object unmodified if it's exactly the frozendict
type.
Optimize also PyFrozenDict_New(frozendict).
2026-03-09 15:47:02 +01:00
Victor Stinner
9159287f58
gh-144175: Add PyArg_ParseArray() function ( #144283 )
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Add PyArg_ParseArray() and PyArg_ParseArrayAndKeywords()
functions to parse arguments of functions using the METH_FASTCALL
calling convention.
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
2026-03-06 21:57:44 +00:00
Victor Stinner
0c29f83caa
gh-141510: No longer accept frozendict in PyDict_Copy() ( #145542 )
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Rename _PyDict_Copy() to anydict_copy().
Replace PyObject_IsInstance(op, &PyFrozenDict_Type) with
PyFrozenDict_Check().
2026-03-05 15:26:54 +01:00
Victor Stinner
0fe20fc170
gh-141510: Don't accept frozendict in PyDict_Watch() ( #145529 )
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Don't accept frozendict in PyDict_Watch() and PyDict_Unwatch().
A frozendict cannot be modified, so it's not useful to watch for
modifications.
2026-03-05 12:31:29 +01:00
Victor Stinner
95f56b1206
gh-141510: Return frozendict unmodified in PyDict_Copy() ( #145505 )
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Add also the internal _PyDict_CopyAsDict() function.
2026-03-04 19:11:00 +00:00
Hai Zhu
277a03711b
gh-145197: Fix JIT trace crash when recording function from cleared generator frame (GH-145220)
2026-02-25 16:52:53 +00:00
Hai Zhu
fd01372d4e
gh-145064: Fix JIT assertion failure during CALL_ALLOC_AND_ENTER_INIT side exit (GH-145100)
2026-02-22 18:46:03 +00:00
Victor Stinner
25fc04d041
gh-141510: Test frozendict in test_capi.test_dict ( #145084 )
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Complete PyDict_Clear() documentation.
2026-02-21 20:07:30 +01:00
Victor Stinner
c9380aebbe
gh-141510: Check argument in PyDict_Contains() ( #145083 )
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PyDict_Contains() and PyDict_ContainsString() now fail with
SystemError if the first argument is not a dict, frozendict, dict
subclass or frozendict subclass.
2026-02-21 18:36:02 +01:00
Victor Stinner
6940c1dc0c
gh-141510: Check argument in PyDict_MergeFromSeq2() ( #145082 )
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PyDict_MergeFromSeq2() now fails with SystemError if the first
argument is not a dict or a dict subclass.
PyDict_Update(), PyDict_Merge() and _PyDict_MergeEx() no longer
accept frozendict.
2026-02-21 17:21:43 +01:00
Victor Stinner
9e083b57ee
gh-141510: Test frozendict C API ( #145081 )
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Add tests on functions:
* PyAnyDict_Check()
* PyAnyDict_CheckExact()
* PyFrozenDict_Check()
* PyFrozenDict_CheckExact()
* PyFrozenDict_New()
2026-02-21 17:00:23 +01:00
Mark Shannon
3f37b94c73
GH-144651: Optimize the new uops added when recording values during tracing. (GH-144948)
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* Handle dependencies in the optimizer, not the tracer
* Strengthen some checks to avoid relying on optimizer for correctness
2026-02-19 11:52:57 +00:00
Pablo Galindo Salgado
46d5106cfa
gh-142349: Implement PEP 810 - Explicit lazy imports ( #142351 )
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Co-authored-by: T. Wouters <twouters@meta.com >
Co-authored-by: Brittany Reynoso <breynoso@meta.com>
Co-authored-by: Dino Viehland <dinoviehland@meta.com>
2026-02-12 00:15:33 +00:00
Nybblista
cc81707e40
gh-144629: Add test for the PyFunction_GetAnnotations() function ( #144630 )
2026-02-10 14:38:24 +00:00
Sacul
6c8ca1c378
gh-134584: Optimize _BINARY_OP_SUBSCR_LIST_SLICE (GH-144659)
2026-02-10 22:33:32 +08:00
Steve Dower
a9b6788ae6
gh-144278: Enable overriding sys.implementation's name and cache_tag when building sysmodule.c (GH-144293)
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Changing the values requires forking and patching, which is intentional. Simply rebuilding from source does not change the implementation enough to justify changing these values - they would still be `cpython` and compatible with existing `.pyc` files. But people who maintain forks are better served by being able to easily override these values in a place that can be forward-ported reliably.
2026-02-10 00:01:17 +00:00
Petr Viktorin
b22ff1e543
gh-140550: allow slots that repeat information from PyModuleDef (GH-144340)
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When integrating slots-based module creation is with the inittab,
which currently requires PyModuleDef, it would be convenient to
reuse the the same slots array for the MethodDef.
Allow slots that match what's already present in the PyModuleDef.
2026-02-09 11:35:43 +01:00
Sacul
cfeede85a7
GH-131798: Optimize _GUARD_TOS_SLICE (GH-144470)
2026-02-08 18:08:26 +00:00
Mark Shannon
b53fc7caa6
GH-144179: Use recorded values to make optimizer more robust (GH-144437)
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* Add three new symbol kinds
* Do not smuggle code object in _PUSH_FRAME operand
* Fix small bug in predicate analysis
2026-02-05 08:58:41 +00:00
Hai Zhu
89e6607e05
gh-139109: Replace _CHECK_STACK_SPACE with _CHECK_STACK_SPACE_OPERAND in JIT optiimizer (GH-144394)
2026-02-02 17:12:01 +00:00
Pablo Galindo Salgado
96e4cd698a
gh-144319: Fix huge page safety in pymalloc arenas ( #144331 )
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The pymalloc huge page support had two problems. First, on
architectures where the default huge page size exceeds the arena
size (e.g. 32 MiB on PPC, 512 MiB on ARM64 with 64 KB base
pages), mmap with MAP_HUGETLB silently allocates a full huge page
even when the requested size is smaller. The subsequent munmap
with the original arena size then fails with EINVAL, permanently
leaking the entire huge page. Second, huge pages were always
attempted when compiled in, with no way to disable them at
runtime. On Linux, if the huge page pool is exhausted, page
faults including copy-on-write faults after fork deliver SIGBUS
and kill the process.
The arena allocator now queries the system huge page size from
/proc/meminfo and skips MAP_HUGETLB when the arena size is not a
multiple of it. Huge pages also now require explicit opt-in at
runtime via the PYTHON_PYMALLOC_HUGEPAGES environment variable,
which is read through PyConfig and respects -E and -I flags.
The config field pymalloc_hugepages is propagated to the runtime
allocators struct so the low-level arena allocator can check it
without calling getenv directly.
2026-01-30 18:18:56 +00:00
Yongtao Huang
14c5339a38
Test: fix stale uops usage in test_capi/test_opt.py (GH-144239)
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Signed-off-by: Yongtao Huang <yongtaoh2022@gmail.com>
2026-01-29 17:08:14 +00:00
Pieter Eendebak
08d7bd28fe
gh-140232: Do not track frozenset objects with immutables ( #140234 )
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Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Mikhail Efimov <efimov.mikhail@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
2026-01-28 11:27:37 +01:00
AN Long
6e55337f8a
gh-143995: Eliminate redundant refcounting in the JIT from LOAD_ATTR_MODULE (GH-143996)
2026-01-25 18:24:44 +00:00
Yi Yang
979d92fefc
gh-144140: Optimize len for string constants in optimizer (GH-144142)
2026-01-24 16:09:29 +00:00
reiden
6d972e0104
gh-130415: Narrow types to constants in branches involving specialized comparisons with a constant (GH-144150)
2026-01-24 10:02:08 +00:00
Hai Zhu
29840247ff
gh-144068: fix JIT tracer memory leak when daemon thread exits (GH-144077)
2026-01-24 09:43:01 +00:00
AN Long
4e10fa993a
gh-144007: Eliminate redundant refcounting in the JIT for BINARY_OP (GH-144011)
2026-01-24 09:35:32 +00:00
AN Long
2f42f83344
gh-144005: Eliminate redundant refcounting in the JIT for BINARY_OP_EXTEND ( #144006 )
2026-01-23 17:19:01 +00:00
Petr Viktorin
3e66171efa
gh-142913: Revert adding test_replaced_interpreter (GH-144110)
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This partially reverts commit 4d5a676aa0
2026-01-22 10:40:34 +01:00
reiden
0b08438ea6
gh-130415: Narrowing to constants in branches involving is comparisons with a constant (GH-143895)
2026-01-22 09:37:45 +00:00
