Hai Zhu
618b726d68
gh-146073: Add fitness/exit quality mechanism for JIT trace frontend (GH-148089)
...
* Replaces ad-hoc logic for ending traces with a simple inequality: `fitness < exit_quality`
* Fitness starts high and is reduced for branches, backward edges, calls and trace length
* Exit quality reflect how good a spot that instruction is to end a trace. Closing a loop is very, specializable instructions are very low and the others in between.
2026-04-24 10:37:01 +01:00
Dino Viehland
c0af5c024b
gh-146031: Allow keeping specialization enabled when specifying eval frame function ( #146032 )
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Allow keeping specialization enabled when specifying eval frame function
2026-04-16 09:44:26 -07:00
Mark Shannon
600f4dbd54
GH-145668: Add FOR_ITER specialization for virtual iterators. Specialize GET_ITER. (GH-147967)
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* Add FOR_ITER_VIRTUAL to specialize FOR_ITER for virtual iterators
* Add GET_ITER_SELF to specialize GET_ITER for iterators (including generators)
* Add GET_ITER_VIRTUAL to specialize GET_ITER for iterables as virtual iterators
* Add new (internal) _tp_iteritem function slot to PyTypeObject
* Put limited RESUME at start of genexpr for free-threading. Fix up exception handling in genexpr
2026-04-16 15:22:22 +01:00
Pieter Eendebak
1f6a09fb36
gh-100239: Specialize more binary operations using BINARY_OP_EXTEND (GH-128956)
2026-04-16 09:22:41 +01:00
Neko Asakura
e998eb9a83
gh-148604: change ADD_OP(_POP_TOP, ...) to optimize_pop_top in optimizer_bytecodes.c (GH-148619)
2026-04-16 01:08:29 +08:00
Pieter Eendebak
5c3decad66
gh-146393: Use recorded type instead of instance in BINARY_OP ( #148569 )
2026-04-14 20:11:42 +00:00
Pieter Eendebak
95cbd4a232
gh-146393: Optimize float division operations by mutating uniquely-referenced operands in place (JIT only) (GH-146397)
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-15 02:08:04 +08:00
Kumar Aditya
3cb7eaec85
gh-131798: constant fold special method lookups in JIT ( #148432 )
2026-04-14 16:02:23 +00:00
Kumar Aditya
1aa7e7ee6d
gh-gh-131798: optimize LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN in the JIT ( #148555 )
2026-04-14 21:00:32 +05:30
Wulian233
e0b56f006c
gh-131798: Constant-fold _CONTAINS_OP_DICT for frozendict (GH-148548)
2026-04-14 23:04:28 +08:00
Neko Asakura
52a7f1b7f8
gh-148510: restore func_version check in _LOAD_ATTR_PROPERTY_FRAME (GH-148528)
2026-04-14 22:44:39 +08:00
Wulian233
afaf58b573
gh-131798: JIT: Optimize _CHECK_IS_NOT_PY_CALLABLE_EX and _CHECK_IS_NOT_PY_CALLABLE_KW (GH-148494)
2026-04-13 22:41:06 +08:00
Kumar Aditya
88e378cc1c
gh-131798: optimize through keyword and bound method calls in the JIT (GH-148466)
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Co-authored-by: Ken Jin <kenjin4096@gmail.com>
2026-04-13 21:14:48 +08:00
Neko Asakura
63492628be
gh-148438: implement _RECORD_BOUND_METHOD in JIT (GH-148457)
2026-04-13 02:57:55 +08:00
Sacul
18d7d90ef9
gh-131798: Split _CHECK_AND_ALLOCATE_OBJECT into smaller uops (GH-148433)
...
Co-authored-by: Hai Zhu <haiizhu@outlook.com>
Co-authored-by: Ken Jin <kenjin4096@gmail.com>
2026-04-13 02:31:24 +08:00
Ken Jin
6f7bb297db
gh-146261: JIT: protect against function version changes ( #146300 )
...
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
2026-04-13 02:23:47 +08:00
Wulian233
03d2f035d6
gh-131798: Add _CHECK_IS_NOT_PY_CALLABLE to the JIT optimizer (GH-148434)
2026-04-12 21:07:19 +08:00
Wulian233
a059e85866
gh-131798: Add _IS_NONE to the JIT optimizer (GH-148369)
2026-04-11 23:02:46 +08:00
Pieter Eendebak
1c89817f51
gh-148276: Optimize object creation and method calls in the JIT by resolving __init__ at trace optimization time (GH-148277)
...
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Ken Jin <kenjin4096@gmail.com>
2026-04-11 22:22:42 +08:00
Neko Asakura
9831dea3bf
gh-148211: decompose _POP_TWO/_POP_CALL(_ONE/_TWO) in JIT (GH-148377)
2026-04-11 20:46:56 +08:00
Neko Asakura
72006a71b2
gh-148211: decompose [_POP_TWO/_INSERT_2]_LOAD_CONST_INLINE_BORROW in JIT (GH-148357)
2026-04-11 18:27:51 +08:00
Kumar Aditya
8f17140fc1
gh-131798: split _CALL_BUILTIN_CLASS to smaller uops ( #148094 )
2026-04-10 17:28:20 +00:00
Ken Jin
266247c9a6
gh-148171: Convert CALL_BUILTIN_FAST to leave inputs on the stack for refcount elimination in JIT (GH-148172)
2026-04-10 23:11:18 +08:00
Neko Asakura
aea0b91d65
gh-148211: decompose [_POP_CALL_X/_SHUFFLE_2]_LOAD_CONST_INLINE_BORROW in JIT (GH-148313)
2026-04-10 21:57:01 +08:00
Neko Asakura
0f49232664
gh-148211: decompose _INSERT_1_LOAD_CONST_INLINE(_BORROW) in JIT (GH-148283)
2026-04-10 00:45:39 +08:00
Sacul
38d3aef375
gh-134584 : Optimize and eliminate redundant ref-counting for MAKE_FUNCTION in the JIT (GH-144963)
2026-04-09 22:22:53 +08:00
Kumar Aditya
458aca9237
gh-131798: fold super method lookups in JIT ( #148231 )
2026-04-09 13:25:01 +05:30
Kumar Aditya
6e081614eb
gh-148210: fix incorrect _BINARY_OP_SUBSCR_DICT JIT optimization (GH-148213)
2026-04-08 23:23:20 +08:00
Sacul
bb03c8bd02
gh-145866: Convert _CALL_METHOD_DESCRIPTOR_NOARGS to leave its inputs on the stack to be cleaned up by _POP_TOP (GH-148227)
2026-04-08 23:21:37 +08:00
Neko Asakura
d2fa4b2b13
gh-148211: decompose _POP_TOP_LOAD_CONST_INLINE(_BORROW) in JIT (GH-148230)
2026-04-08 23:20:31 +08:00
Neko Asakura
756358524e
gh-148235: remove duplicate uops _LOAD_CONST_UNDER_INLINE(_BORROW) in JIT (GH-148236)
2026-04-08 16:22:59 +08:00
Pieter Eendebak
efda60e2ec
gh-100239: Propagate type info through _BINARY_OP_EXTEND in tier 2 (GH-148146)
2026-04-06 20:52:42 +08:00
Donghee Na
289f19adb0
gh-148083: Constant-fold _CONTAINS_OP_SET for frozenset (gh-148084)
2026-04-04 12:32:12 +00:00
Kumar Aditya
e7bf8eac0f
gh-131798: split recursion check to _CHECK_RECURSION_LIMIT and combine checks (GH-148070)
2026-04-04 17:23:03 +08:00
Kumar Aditya
7e275d4965
gh-131798: JIT inline function addresses of builtin methods ( #146906 )
2026-04-04 09:12:13 +05:30
Pieter Eendebak
48317feec8
gh-146640: Optimize int operations by mutating uniquely-referenced operands in place (JIT only) (GH-146641)
2026-04-03 23:23:04 +08:00
Victor Stinner
c1a4112c22
gh-147988: Initialize digits in long_alloc() in debug mode ( #147989 )
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When Python is built in debug mode:
* long_alloc() now initializes digits with a pattern to detect usage of
uninitialized digits.
* _PyLong_CompactValue() now makes sure that the digit is zero when the
sign is zero.
* PyLongWriter_Finish() now raises SystemError if it detects uninitialized
digits
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2026-04-02 11:55:34 +00:00
Petr Viktorin
a86963b3e2
gh-146636: Py_mod_abi mandatory for modules created from slots array (GH-146855)
2026-04-02 13:54:21 +02:00
Sergey B Kirpichev
db5936c5b8
gh-143050: Correct PyLong_FromString() to use _PyLong_Negate() ( #145901 )
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The long_from_string_base() might return a small integer, when the
_pylong.py is used to do conversion. Hence, we must be careful here to
not smash it "small int" bit by using the _PyLong_FlipSign().
Co-authored-by: Victor Stinner <vstinner@python.org>
2026-03-31 13:17:49 +00:00
Kumar Aditya
8e9d21c64b
gh-146558: JIT optimize dict access for objects with known hash ( #146559 )
2026-03-30 14:23:29 +00:00
Donghee Na
5992238986
gh-146381: Constant-fold frozendict subscript lookups via REPLACE_OPCODE_IF_EVALUATES_PURE (gh-146490)
2026-03-28 09:48:53 +09:00
Neko Asakura
a492d9ff74
gh-145866: Convert LIST_EXTEND to leave its inputs on the stack to be cleaned up by _POP_TOP be cleaned up by _POP_TOP (GH-146383)
2026-03-28 01:04:17 +08:00
Victor Stinner
d4153a9f76
gh-146480: Override the exception in _PyErr_SetKeyError() ( #146486 )
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If _PyErr_SetKeyError() is called with an exception set, it now
replaces the current exception with KeyError (as expected), instead
of setting a SystemError or failing with a fatal error (in debug
mode).
2026-03-27 11:20:19 +00:00
Kumar Aditya
bfdaa3c565
gh-131798: JIT: split call method and call builtin opcodes into smaller uops ( #146463 )
2026-03-26 14:20:57 +00:00
Sacul
1516c26399
gh-145866: Convert DICT_UPDATE to leave its inputs on the stack to be cleaned up by _POP_TOP (GH-146190)
2026-03-26 19:38:44 +08:00
Kumar Aditya
fc1f6b176e
gh-GH-131798: optimize jit attribute loads on immutable types ( #146449 )
2026-03-26 10:12:10 +00:00
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
