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The Python programming language

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/ Python/bytecodes.c
25e99b375d959d2a2eb78d25f592a68455532c9a
February 6, 2026
S
gh-139103: Improve namedtuple scaling in free-threaded build (gh-144332)
Sam Gross committed
d891b2b
February 5, 2026
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GH-144179: Use recorded values to make optimizer more robust (GH-144437)
Mark Shannon committed
b53fc7c
February 2, 2026
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gh-139109: Replace `_CHECK_STACK_SPACE` with `_CHECK_STACK_SPACE_OPERAND` in JIT optiimizer (GH-144394)
Hai Zhu committed
89e6607
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GH-144179: Add value recording to JIT tracing front-end (GH-144303)
Mark Shannon committed
141fd8b
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gh-144145: Revert PR#144122 for performance and potential bugs. (GH-144391)
Hai Zhu committed
ebbb2ca
January 30, 2026
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gh-144145: Track nullness of properties in the Tier 2 JIT optimizer (GH-144122)
Hai Zhu committed
1dc12b2
January 27, 2026
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gh-144289: Remove ENABLE_SPECIALIZATION_FT (gh-144290)
Sam Gross committed
6ea3f8c
January 25, 2026
A
gh-143995: Eliminate redundant refcounting in the JIT from LOAD_ATTR_MODULE (GH-143996)
AN Long committed
6e55337
January 24, 2026
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gh-144007: Eliminate redundant refcounting in the JIT for BINARY_OP (GH-144011)
AN Long committed
4e10fa9
January 23, 2026
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gh-144005: Eliminate redundant refcounting in the JIT for BINARY_OP_EXTEND (#144006)
AN Long committed
2f42f83
January 21, 2026
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GH-138245: Perform boolean guards by testing a single bit, rather than a full pointer comparison. (GH-143810)
Mark Shannon committed
9eab67d
January 18, 2026
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gh-144012: Check null binary op extend (#144014)
AN Long committed
54bedcf
January 16, 2026
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GH-143493: Conform to spec for generator expressions while supporting virtual iterators (GH-143569)
Mark Shannon committed
ae53da5
January 14, 2026
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gh-143123: Protect against recursive tracer calls/finalization (GH-143126)
Ken Jin committed
e370c8d
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gh-138050: Use cold flag instead of warm flag in `MAKE_WARM` (GH-143827)
Hai Zhu committed
94dbce1
January 12, 2026
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gh-134584: Eliminate redundant refcounting in TO_BOOL_INT, TO_BOOL_LIST (GH-143759)
reiden committed
c556786
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gh-134584: Eliminate redundant refcounting from `_CONTAINS_{OP|OP_SET|OP_DICT}` (GH-143731)
Nadeshiko Manju committed
e535bdb
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gh-134584: JIT: Remove redundant refcount for _BINARY_OP_SUBSCR_DICT (GH-143724)
Cajetan Rodrigues committed
054a565
January 11, 2026
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gh-134584: JIT: Remove redundant refcounting for UNARY_{INVERT|NEGATIVE} (GH-143704)
Ken Jin committed
548526b
January 10, 2026
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gh-143604: Hold strong reference to executor during JIT tracing (GH-143646)
Nadeshiko Manju committed
e2f0160
January 9, 2026
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gh-142764: Restore REPLACE_OPCODE_IF_EVALUATES_PURE optimization for some ops (GH-143335)
Ken Jin committed
9525911
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gh-143421: Allocate all JIT state in one go (GH-143626)
Ken Jin committed
e0fb278
January 8, 2026
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gh-142908: Don't use `DK_IS_UNICODE` in interpreter (gh-142909)
Sam Gross committed
8cf5c4d
January 7, 2026
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gh-143531: Use macro to check if PEP 523 is hooked (#143532)
Dino Viehland committed
bfc3d8d
January 6, 2026
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gh-134584: Eliminate redundant refcounting from `TO_BOOL_STR` (GH-143417)
Nadeshiko Manju committed
0a5c04a
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gh-142982: Specialize CALL_FUNCTION_EX (GH-143391)
Ken Jin committed
df35534
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gh-134584: Eliminate redundant refcounting in TO_BOOL_ALWAYS_TRUE (GH-143427)
reiden committed
54f1ed0
January 4, 2026
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gh-139757: Add BINARY_OP_SUBSCR_USTR_INT (GH-143389)
Chris Eibl committed
e6bfe4d
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gh-143403: Fix a UAF in `_BINARY_OP_INPLACE_ADD_UNICODE` (GH-143404)
Ken Jin committed
6116d70
January 2, 2026
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gh-134584: JIT: Remove redundant refcount from STORE_FAST (GH-143336)
Ken Jin committed
f7a03bb
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gh-139757: Add _GUARD_NOS_COMPACT_ASCII for compact ascii optimization (gh-143332)
Donghee Na committed
315f474
January 1, 2026
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gh-134584: Eliminate redundant refcounting from `_LOAD_ATTR_SLOT` (GH-143320)
Nadeshiko Manju committed
d00d39f
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gh-134584: Eliminate redundant refcounting from _CALL{_BUILTIN_O, _METHOD_DESCRIPTOR_O} (GH-143330)
Donghee Na committed
1fb8e0e
December 28, 2025
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gh-131798: Remove bounds check when indexing into tuples with a constant index (#137607)
Tomas R. committed
713684d
December 26, 2025
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gh-134584: Eliminate redundant refcounting from `IS_OP` (GH-143171)
Hai Zhu committed
a1c6308
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gh-134584: Eliminate redundant refcounting from `_COMPARE_OP_X` (GH-143186)
Hai Zhu committed
b3f2d80
December 24, 2025
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gh-143092: Make CALL_LIST_APPEND and BINARY_OP_INPLACE_ADD_UNICODE normal instructions (GH-143124)
Ken Jin committed
cf6758f
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JIT: Move executor to a register (#143072)
Diego Russo committed
fc2f0fe
December 23, 2025
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gh-134584: Eliminate redundant refcounting from `_BINARY_OP_SUBSCR_TUPLE_INT` (GH-143094)
Hai Zhu committed
cc48bf0
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gh-134584: Eliminate redundant refcounting from `_CALL_TYPE_1` (GH-135818)
Tomas R. committed
25c294b
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gh-142448: Disable JIT tracing when monitoring is enabled (GH-142842)
Ken Jin committed
c4ab024
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gh-134584: Eliminate redundant refcounting from `_LOAD_ATTR_WITH_HINT` (GH-143062)
Hai Zhu committed
5b5ee3c
December 22, 2025
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GH-139922: Tail calling for MSVC (VS 2026) (GH-143068)
Chris Eibl committed
be3c131
December 19, 2025
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gh-120321: Make gi_frame_state transitions atomic in FT build (gh-142599)
Sam Gross committed
08bc03f
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gh-142961: Fix constant folding len(tuple) in JIT (GH-142963)
Ken Jin committed
786f464
December 18, 2025
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GH-134584: Remove redundant refcount for `BINARY_OP_SUBSCR_STR_INT` (#142844)
Savannah Ostrowski committed
1391ee6
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gh-134584: Eliminate redundant refcounting from _BINARY_OP_SUBSCR_LIST_INT (GH-142926)
LloydZ committed
33d94ab
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gh-142890: remove unnecessary interp parameter from dict functions and `_PyDict_NotifyEvent` (#142923)
Kumar Aditya committed
e22c495
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gh-134584: Remove redundant refcount from _BINARY_OP_ADD_UNICODE (gh-142825)
Donghee Na committed
71a7cb8
December 16, 2025
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gh-134584: Eliminate redundant refcounting from `_STORE_ATTR_WITH_HINT` (GH-142767)
Nadeshiko Manju committed
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