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457 Commits
Author SHA1 Message Date
Neil SchemenauerandGitHub 9626ef87f4 gh-152238: Revert gh-150490 and gh-152200. (gh-152232) 
Revert commits:
    gh-151593: Fix dead lock in PyDict insert_split_key() (#152200)
    gh-150490: Raise PyType_Modified for insertion into split dictionary (#150489)

For gh-150489, it violates locking discipline and results in deadlocks,
gh-151593 is an example of it being hit in CI.  The attempted fix 
gh-152200 avoids the deadlock but introduces a data-race.  The race
window is small but can be triggered with pure Python code.
 2026-06-26 11:20:41 -07:00
Mark ShannonandGitHub ad1513a263 GH-150516: Reduce the work done to spill and reload the stack around calls (GH-151587) 2026-06-18 15:14:30 +01:00
Maurycy Pawłowski-WierońskiandGitHub a8d74c062f gh-151436: Fix missing tstate->last_profiled_frame updates (#151437) 2026-06-17 16:49:23 -04:00
Kumar AdityaandGitHub e9d5280f6c gh-151223: fix tsan data races in load global specializations (#151393) 2026-06-15 22:09:49 +05:30
Dino ViehlandandGitHub efb2fffae1 gh-150490: Raise PyType_Modified for insertion into split dictionary (#150489) 
Raise PyType_Modified for insertion into split dictionary
 2026-06-11 09:38:31 -07:00
Mark ShannonandGitHub 633b6be8f5 GH-148960: Reduce the size of the debug stencils to less than half. (GH-150551) 
For AArch64 linux, reduces the total bytes in the code bodies from 489kb to 218kb.
Reduces the size of the stencils files from 394k lines to 167k lines.
 2026-06-01 17:56:16 +01:00
Neko AsakuraandGitHub 39bd44fc70 gh-148871: make LOAD_COMMON_CONSTANT use immortal stackref borrows (GH-149625) 2026-05-28 12:27:37 +01:00
Pieter EendebakandGitHub dfeeee990b gh-145192: improve performance of PySequence_GetSlice (#145193) 2026-05-23 15:45:50 +05:30
Sergey MiryanovandGitHub 1a79fd0ad6 GH-149501: Fix compilation warning in _YIELD_VALUE uop (#149502) 2026-05-12 22:47:35 +05:30
Mark ShannonandGitHub 70bd1c2dd2 GH-143732: SEND specialization (GH-148963) 
* SEND specialization. Adds 2 new specialized instructions:

* SEND_VIRTUAL: for sends to virtual iterators e.g lists and tuples
* SEND_ASYNC_GEN: for sends to async generators

Tweak FOR_ITER_VIRTUAL so that SEND_VIRTUAL and FOR_ITER_VIRTUAL use equivalent guards
 2026-05-05 15:19:16 +01:00
Pablo Galindo SalgadoandGitHub 9a268e3e33 gh-98894: Restore function entry/exit DTrace probes (#142397) 
The function__entry and function__return probes stopped working in Python 3.11
when the interpreter was restructured around the new bytecode system. This change
restores these probes by adding DTRACE_FUNCTION_ENTRY() at the start_frame label
in bytecodes.c and DTRACE_FUNCTION_RETURN() in the RETURN_VALUE and YIELD_VALUE
instructions. The helper functions are defined in ceval.c and extract the
filename, function name, and line number from the frame before firing the probe.

This builds on the approach from https://github.com/python/cpython/pull/125019
but avoids modifying the JIT template since the JIT does not currently support
DTrace. The macros are conditionally compiled with WITH_DTRACE and are no-ops
otherwise. The tests have been updated to use modern opcode names (CALL, CALL_KW,
CALL_FUNCTION_EX) and a new bpftrace backend was added for Linux CI alongside
the existing SystemTap tests. Line probe tests were removed since that probe
was never restored after 3.11.
 2026-05-05 00:29:55 +00:00
Neko AsakuraandGitHub 9846407eaf gh-143732: add specialization for FOR_ITER (GH-148745) 2026-05-04 17:29:10 +01:00
Victor StinnerGitHubMark Shannon
 		952784af47 gh-137030: Fix YIELD_VALUE bytecode assertion (#149184) 
Co-authored-by: Mark Shannon <[email protected]>
 2026-05-04 18:09:57 +02:00
Kumar AdityaandGitHub 5847931d11 gh-143732: allow dict subclasses to be specialized (GH-148128) 2026-05-04 09:39:03 +01:00
Neko AsakuraandGitHub 0102c1d9b9 gh-149204: add _RROT_3 uop to reduce stack moves (GH-149205) 2026-05-01 12:35:31 +01:00
Neko AsakuraandGitHub 2b6a13710f gh-148211: decompose _SHUFFLE_3_LOAD_CONST_INLINE_BORROW in JIT (GH-148816) 2026-04-28 13:48:23 +01:00
Mark ShannonandGitHub 600f4dbd54 GH-145668: Add FOR_ITER specialization for virtual iterators. Specialize GET_ITER. (GH-147967) 
* 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 EendebakandGitHub 1f6a09fb36 gh-100239: Specialize more binary operations using BINARY_OP_EXTEND (GH-128956) 2026-04-16 09:22:41 +01:00
Pieter EendebakGitHubClaude Opus 4.6
 		95cbd4a232 gh-146393: Optimize float division operations by mutating uniquely-referenced operands in place (JIT only) (GH-146397) 
Co-authored-by: Claude Opus 4.6 (1M context) <[email protected]>
 2026-04-15 02:08:04 +08:00
Kumar AdityaandGitHub 1aa7e7ee6d gh-gh-131798: optimize LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN in the JIT (#148555) 2026-04-14 21:00:32 +05:30
Neko AsakuraandGitHub 52a7f1b7f8 gh-148510: restore func_version check in _LOAD_ATTR_PROPERTY_FRAME (GH-148528) 2026-04-14 22:44:39 +08:00
SaculGitHubHai ZhuKen Jin
 		18d7d90ef9 gh-131798: Split _CHECK_AND_ALLOCATE_OBJECT into smaller uops (GH-148433) 
Co-authored-by: Hai Zhu <[email protected]>
Co-authored-by: Ken Jin <[email protected]>
 2026-04-13 02:31:24 +08:00
Donghee NaandGitHub a71b043356 gh-148171: Convert CALL_BUILTIN_CLASS to leave arguments on the stack (gh-148381) 2026-04-11 23:01:25 +09:00
Neko AsakuraandGitHub 9831dea3bf gh-148211: decompose _POP_TWO/_POP_CALL(_ONE/_TWO) in JIT (GH-148377) 2026-04-11 20:46:56 +08:00
Neko AsakuraandGitHub 72006a71b2 gh-148211: decompose [_POP_TWO/_INSERT_2]_LOAD_CONST_INLINE_BORROW in JIT (GH-148357) 2026-04-11 18:27:51 +08:00
SaculandGitHub e872c19922 gh-148171: Convert variadic argument opcodes to leave their arguments on the stack (CALL_BUILTIN_FAST_WITH_KEYWORDS) (#148366) 2026-04-11 13:27:24 +08:00
Kumar AdityaandGitHub 2b439da972 gh-148171: convert more variadic uops to leave input on stack in JIT (#148361) 2026-04-11 10:29:38 +05:30
Kumar AdityaandGitHub 8f17140fc1 gh-131798: split _CALL_BUILTIN_CLASS to smaller uops (#148094) 2026-04-10 17:28:20 +00:00
Ken JinandGitHub 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 AsakuraandGitHub 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 AsakuraandGitHub 0f49232664 gh-148211: decompose _INSERT_1_LOAD_CONST_INLINE(_BORROW) in JIT (GH-148283) 2026-04-10 00:45:39 +08:00
SaculandGitHub 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 AdityaandGitHub 458aca9237 gh-131798: fold super method lookups in JIT (#148231) 2026-04-09 13:25:01 +05:30
SaculandGitHub 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 AsakuraandGitHub 756358524e gh-148235: remove duplicate uops _LOAD_CONST_UNDER_INLINE(_BORROW) in JIT (GH-148236) 2026-04-08 16:22:59 +08:00
Kumar AdityaandGitHub e7bf8eac0f gh-131798: split recursion check to _CHECK_RECURSION_LIMIT and combine checks (GH-148070) 2026-04-04 17:23:03 +08:00
Kumar AdityaandGitHub 7e275d4965 gh-131798: JIT inline function addresses of builtin methods (#146906) 2026-04-04 09:12:13 +05:30
Pieter EendebakandGitHub 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
Kumar AdityaandGitHub 8e9d21c64b gh-146558: JIT optimize dict access for objects with known hash (#146559) 2026-03-30 14:23:29 +00:00
Serhiy StorchakaandGitHub 6932c3ee6a gh-145876: Do not mask KeyErrors raised during dictionary unpacking in call (GH-146472) 
KeyErrors raised in keys() or __getitem__() during dictionary unpacking
in call (func(**mymapping)) are no longer masked by TypeError.
 2026-03-29 11:58:52 +03:00
Neko AsakuraandGitHub 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
Kumar AdityaandGitHub bfdaa3c565 gh-131798: JIT: split call method and call builtin opcodes into smaller uops (#146463) 2026-03-26 14:20:57 +00:00
Serhiy StorchakaandGitHub 0e543055b0 gh-145876: Do not mask AttributeErrors raised during dictionary unpacking (GH-145906) 
AttributeErrors raised in keys() or __getitem__() during
dictionary unpacking ({**mymapping} or func(**mymapping)) are
no longer masked by TypeError.
 2026-03-26 13:48:57 +00:00
SaculandGitHub 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
Kevin HuaiandGitHub 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
Pieter EendebakGitHubClaude Opus 4.6
 		951675c18a gh-146306: JIT: Optimize float operations by mutating uniquely-referenced operands in place (GH-146307) 
Co-authored-by: Claude Opus 4.6 (1M context) <[email protected]>
 2026-03-24 21:16:02 +08:00
Neko AsakuraandGitHub 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
reidenGitHubKen Jin
 		e36f8db7e5 gh-143414: Implement unique reference tracking for JIT, optimize unpacking of such tuples (GH-144300) 
Co-authored-by: Ken Jin <[email protected]>
 2026-03-23 00:57:23 +08:00
Mark ShannonandGitHub 879c85f6e4 GH-145667: Merge GET_ITER and GET_YIELD_FROM_ITER (GH-146120) 
* Merge GET_ITER and GET_YIELD_FROM_ITER. Modify SEND to make it a bit more like FOR_ITER
 2026-03-21 10:48:13 +00:00
SaculandGitHub 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