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
Mark Shannon
141fd8b894
GH-144179: Add value recording to JIT tracing front-end (GH-144303)
2026-02-02 16:57:04 +00:00
Hai Zhu
ebbb2ca81f
gh-144145: Revert PR#144122 for performance and potential bugs. (GH-144391)
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Revert "gh-144145: Track nullness of properties in the Tier 2 JIT optimizer (GH-144122)"
This reverts commit 1dc12b2883
2026-02-02 14:09:54 +00:00
Hai Zhu
1dc12b2883
gh-144145: Track nullness of properties in the Tier 2 JIT optimizer (GH-144122)
2026-01-30 15:25:19 +00:00
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
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
Mark Shannon
9eab67d507
GH-138245: Perform boolean guards by testing a single bit, rather than a full pointer comparison. (GH-143810)
2026-01-21 15:58:27 +00:00
AN Long
54bedcf714
gh-144012: Check null binary op extend ( #144014 )
2026-01-19 02:38:37 +08:00
Mark Shannon
ae53da5758
GH-143493: Conform to spec for generator expressions while supporting virtual iterators (GH-143569)
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* Moves the `GET_ITER` instruction into the generator function preamble.
This means the the iterable is converted into an iterator during generator
creation, as documented, but keeps it in the same code object allowing
optimization.
2026-01-16 09:11:58 +00:00
Hai Zhu
94dbce1397
gh-138050: Use cold flag instead of warm flag in MAKE_WARM (GH-143827)
2026-01-14 10:27:33 +00:00
reiden
c556786b8b
gh-134584: Eliminate redundant refcounting in TO_BOOL_INT, TO_BOOL_LIST (GH-143759)
2026-01-12 21:56:26 +00:00
Nadeshiko Manju
e535bdb0a2
gh-134584: Eliminate redundant refcounting from _CONTAINS_{OP|OP_SET|OP_DICT} (GH-143731)
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Signed-off-by: Manjusaka <me@manjusaka.me>
2026-01-12 15:47:31 +00:00
Cajetan Rodrigues
054a565c64
gh-134584: JIT: Remove redundant refcount for _BINARY_OP_SUBSCR_DICT (GH-143724)
2026-01-12 14:13:55 +00:00
Ken Jin
548526bbbe
gh-134584: JIT: Remove redundant refcounting for UNARY_{INVERT|NEGATIVE} (GH-143704)
2026-01-11 20:42:55 +00:00
Nadeshiko Manju
e2f0160026
gh-143604: Hold strong reference to executor during JIT tracing (GH-143646)
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Co-authored-by: Ken Jin <kenjin4096@gmail.com>
2026-01-10 11:15:48 +00:00
Ken Jin
95259116ec
gh-142764: Restore REPLACE_OPCODE_IF_EVALUATES_PURE optimization for some ops (GH-143335)
2026-01-09 23:18:22 +00:00
Sam Gross
8cf5c4d89a
gh-142908: Don't use DK_IS_UNICODE in interpreter (gh-142909)
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`DK_IS_UNICODE()` includes split keys and we don't want to specialize on
those accesses..
2026-01-08 09:32:20 -05:00
Dino Viehland
bfc3d8d77f
gh-143531: Use macro to check if PEP 523 is hooked ( #143532 )
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Use macro to check if PEP 523 is hooked
2026-01-07 13:26:19 -08:00
Nadeshiko Manju
0a5c04a5ce
gh-134584: Eliminate redundant refcounting from TO_BOOL_STR (GH-143417)
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Signed-off-by: Manjusaka <me@manjusaka.me>
2026-01-06 21:11:53 +00:00
Ken Jin
df355348f0
gh-142982: Specialize CALL_FUNCTION_EX (GH-143391)
2026-01-06 20:34:08 +00:00
reiden
54f1ed0299
gh-134584: Eliminate redundant refcounting in TO_BOOL_ALWAYS_TRUE (GH-143427)
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Co-authored-by: Ken Jin <kenjin@python.org>
2026-01-06 16:11:56 +00:00
Chris Eibl
e6bfe4d886
gh-139757: Add BINARY_OP_SUBSCR_USTR_INT (GH-143389)
2026-01-04 14:14:27 +00:00
Ken Jin
6116d70bbd
gh-143403: Fix a UAF in _BINARY_OP_INPLACE_ADD_UNICODE (GH-143404)
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Fix a UAF in `_BINARY_OP_INPLACE_ADD_UNICODE`
2026-01-04 13:10:39 +00:00
Ken Jin
f7a03bb944
gh-134584: JIT: Remove redundant refcount from STORE_FAST (GH-143336)
2026-01-02 18:22:21 +00:00
Donghee Na
315f474d11
gh-139757: Add _GUARD_NOS_COMPACT_ASCII for compact ascii optimization (gh-143332)
2026-01-02 20:58:14 +09:00
Nadeshiko Manju
d00d39f58e
gh-134584: Eliminate redundant refcounting from _LOAD_ATTR_SLOT (GH-143320)
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Signed-off-by: Manjusaka <me@manjusaka.me>
Co-authored-by: Ken Jin <kenjin4096@gmail.com>
2026-01-01 17:27:02 +00:00
Donghee Na
1fb8e0eb51
gh-134584: Eliminate redundant refcounting from _CALL{_BUILTIN_O, _METHOD_DESCRIPTOR_O} (GH-143330)
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Co-authored-by: Ken Jin <kenjin4096@gmail.com>
2026-01-01 17:25:38 +00:00
Tomas R.
713684de53
gh-131798: Remove bounds check when indexing into tuples with a constant index ( #137607 )
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* Remove bounds check when indexing into tuples with a constant index
* Add news entry
* fixup after rebase
2025-12-28 22:06:06 +01:00
Hai Zhu
a1c6308346
gh-134584: Eliminate redundant refcounting from IS_OP (GH-143171)
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Eliminate redundant refcounting from IS_OP
2025-12-26 20:30:02 +00:00
Hai Zhu
b3f2d80569
gh-134584: Eliminate redundant refcounting from _COMPARE_OP_X (GH-143186)
2025-12-26 16:12:28 +00:00
Ken Jin
cf6758ff9e
gh-143092: Make CALL_LIST_APPEND and BINARY_OP_INPLACE_ADD_UNICODE normal instructions (GH-143124)
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These super instructions need many special cases in the interpreter, specializer, and JIT. It's best we convert them to normal instructions.
2025-12-24 22:03:00 +00:00
Diego Russo
fc2f0fea6b
JIT: Move executor to a register ( #143072 )
2025-12-24 09:44:16 +00:00
Hai Zhu
cc48bf0fde
gh-134584: Eliminate redundant refcounting from _BINARY_OP_SUBSCR_TUPLE_INT (GH-143094)
2025-12-23 21:47:12 +00:00
Tomas R.
25c294b6ea
gh-134584: Eliminate redundant refcounting from _CALL_TYPE_1 (GH-135818)
2025-12-23 17:01:10 +00:00
Hai Zhu
5b5ee3c4bf
gh-134584: Eliminate redundant refcounting from _LOAD_ATTR_WITH_HINT (GH-143062)
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Eliminate redundant refcounting from _LOAD_ATTR_WITH_HINT
2025-12-23 00:28:08 +00:00
Chris Eibl
be3c131640
GH-139922: Tail calling for MSVC (VS 2026) (GH-143068)
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Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Brandt Bucher <brandt@python.org>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
2025-12-22 23:01:34 +00:00
Sam Gross
08bc03ff2a
gh-120321: Make gi_frame_state transitions atomic in FT build (gh-142599)
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This makes generator frame state transitions atomic in the free
threading build, which avoids segfaults when trying to execute
a generator from multiple threads concurrently.
There are still a few operations that aren't thread-safe and may crash
if performed concurrently on the same generator/coroutine:
* Accessing gi_yieldfrom/cr_await/ag_await
* Accessing gi_frame/cr_frame/ag_frame
* Async generator operations
2025-12-19 19:10:37 +00:00
Ken Jin
786f464c74
gh-142961: Fix constant folding len(tuple) in JIT (GH-142963)
2025-12-19 17:43:36 +00:00
Savannah Ostrowski
1391ee664c
GH-134584: Remove redundant refcount for BINARY_OP_SUBSCR_STR_INT ( #142844 )
2025-12-18 21:29:54 +00:00
LloydZ
33d94abafd
gh-134584: Eliminate redundant refcounting from _BINARY_OP_SUBSCR_LIST_INT (GH-142926)
2025-12-18 18:25:36 +00:00
Kumar Aditya
e22c49522b
gh-142890: remove unnecessary interp parameter from dict functions and _PyDict_NotifyEvent ( #142923 )
2025-12-18 22:48:56 +05:30
Donghee Na
71a7cb8887
gh-134584: Remove redundant refcount from _BINARY_OP_ADD_UNICODE (gh-142825)
2025-12-18 21:33:18 +09:00
Nadeshiko Manju
4345253981
gh-134584: Eliminate redundant refcounting from _STORE_ATTR_WITH_HINT (GH-142767)
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Signed-off-by: Manjusaka <me@manjusaka.me>
2025-12-16 22:21:04 +00:00
Nadeshiko Manju
6ee51a36b3
gh-134584: Eliminate redundant refcounting from _LOAD_ATTR_INSTANCE_VALUE (GH-142769)
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Signed-off-by: Manjusaka <me@manjusaka.me>
2025-12-16 20:39:20 +00:00
Savannah Ostrowski
bef63d2fb8
GH-134584: Remove redundant refcount from _STORE_ATTR_SLOT ( #142729 )
2025-12-15 15:18:44 -08:00
Ken Jin
790a46a449
gh-134584: JIT: Eliminate redundant refcount ops for X_INT (GH-142765)
2025-12-15 22:22:18 +00:00
Nadeshiko Manju
059316ade6
gh-134584: Eliminate redundant refcounting from _STORE_ATTR_INSTANCE_VALUE (GH-142759)
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Signed-off-by: Manjusaka <me@manjusaka.me>
2025-12-15 20:17:12 +00:00
Ken Jin
0ac4e6c6cd
gh-134584: Remove custom float decref ops (GH-142576)
2025-12-15 19:38:58 +00:00
