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* gh-131281: fix compile error due to `BINARY_SUBSCR` (GH-131283)Xuanteng Huang2025-03-15
| | | | | * fix compile error due to `BINARY_SUBSCR` * replace stat_inc with `BINARY_OP`
* gh-115999: Add free-threaded specialization for FOR_ITER (#128798)T. Wouters2025-03-12
| | | | Add free-threaded versions of existing specialization for FOR_ITER (list, tuples, fast range iterators and generators), without significantly affecting their thread-safety. (Iterating over shared lists/tuples/ranges should be fine like before. Reusing iterators between threads is not fine, like before. Sharing generators between threads is a recipe for significant crashes, like before.)
* GH-127705: Use `_PyStackRef`s in the default build. (GH-127875)Mark Shannon2025-03-10
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* GH-128534: Fix behavior of branch monitoring for `async for` (GH-130847)Mark Shannon2025-03-07
| | | * Both branches in a pair now have a common source and are included in co_branches
* gh-130920: Fix data race in STORE_SUBSCR_LIST_INT (#130923)Sam Gross2025-03-06
| | | | | | The write of the item to the list needs to use an atomic operation in the free threading build. Co-authored-by: Tomasz Pytel <tompytel@gmail.com>
* gh-118331: Fix a couple of issues when list allocation fails (#130811)mpage2025-03-05
| | | | | | | | | | | | | | | | * Fix use after free in list objects Set the items pointer in the list object to NULL after the items array is freed during list deallocation. Otherwise, we can end up with a list object added to the free list that contains a pointer to an already-freed items array. * Mark `_PyList_FromStackRefStealOnSuccess` as escaping I think technically it's not escaping, because the only object that can be decrefed if allocation fails is an exact list, which cannot execute arbitrary code when it is destroyed. However, this seems less intrusive than trying to special cases objects in the assert in `_Py_Dealloc` that checks for non-null stackpointers and shouldn't matter for performance.
* GH-130296: Avoid stack transients in four instructions. (GH-130310)Mark Shannon2025-02-28
| | | | | | | | | * Combine _GUARD_GLOBALS_VERSION_PUSH_KEYS and _LOAD_GLOBAL_MODULE_FROM_KEYS into _LOAD_GLOBAL_MODULE * Combine _GUARD_BUILTINS_VERSION_PUSH_KEYS and _LOAD_GLOBAL_BUILTINS_FROM_KEYS into _LOAD_GLOBAL_BUILTINS * Combine _CHECK_ATTR_MODULE_PUSH_KEYS and _LOAD_ATTR_MODULE_FROM_KEYS into _LOAD_ATTR_MODULE * Remove stack transient in LOAD_ATTR_WITH_HINT
* gh-130595: Fix leak in WITH_EXCEPT_START error case (GH-130626)Petr Viktorin2025-02-28
| | | Co-authored-by: Ken Jin <kenjin@python.org>
* GH-128534: Instrument branches for `async for` loops. (GH-130569)Mark Shannon2025-02-27
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* gh-130595: Keep traceback alive for WITH_EXCEPT_START (#130562)Dino Viehland2025-02-26
| | | Keep traceback alive for WITH_EXCEPT_START
* gh-122029: Move monitoring after method expand for CALL_KW (GH-130488)Tian Gao2025-02-25
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* GH-130396: Use computed stack limits on linux (GH-130398)Mark Shannon2025-02-25
| | | | | | | | | | | * Implement C recursion protection with limit pointers for Linux, MacOS and Windows * Remove calls to PyOS_CheckStack * Add stack protection to parser * Make tests more robust to low stacks * Improve error messages for stack overflow
* GH-91079: Revert "GH-91079: Implement C stack limits using addresses, not ↵Petr Viktorin2025-02-24
| | | | | | | | | counters. (GH-130007)" for now (GH130413) Revert "GH-91079: Implement C stack limits using addresses, not counters. (GH-130007)" for now Unfortunatlely, the change broke some buildbots. This reverts commit 2498c22fa0a2b560491bc503fa676585c1a603d0.
* GH-91079: Implement C stack limits using addresses, not counters. (GH-130007)Mark Shannon2025-02-19
| | | | | | | | | | | | * Implement C recursion protection with limit pointers * Remove calls to PyOS_CheckStack * Add stack protection to parser * Make tests more robust to low stacks * Improve error messages for stack overflow
* gh-129989: Change Py_TAIL_CALL_INTERP ifndef to ! (#130269)Ken Jin2025-02-18
| | | Change Py_TAIL_CALL_INTERP ifndef to !
* gh-129989: Properly disable tailcall interp in configure (GH-129991)Ken Jin2025-02-16
| | | Co-authored-by: Zanie Blue <contact@zanie.dev>
* GH-128682: Account for escapes in `DECREF_INPUTS` (GH-129953)Mark Shannon2025-02-12
| | | | | | | | * Handle escapes in DECREF_INPUTS * Mark a few more functions as escaping * Replace DECREF_INPUTS with PyStackRef_CLOSE where possible
* gh-100239: replace BINARY_SUBSCR & family by BINARY_OP with oparg NB_SUBSCR ↵Irit Katriel2025-02-07
| | | | (#129700)
* GH-129709: Clean up tier two (GH-129710)Brandt Bucher2025-02-07
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* GH-129763: Remove the LLTRACE macro (GH-129764)Brandt Bucher2025-02-07
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* gh-128563: Move assignment of opcode into ifdef (GH-129803)Ken Jin2025-02-07
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* gh-128563: A new tail-calling interpreter (GH-128718)Ken Jin2025-02-06
| | | | | Co-authored-by: Garrett Gu <garrettgu777@gmail.com> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
* GH-128682: Mark two more macros as escaping. (GH-129645)Mark Shannon2025-02-04
| | | Expand out SETLOCAL so that code generator can see the decref. Mark Py_CLEAR as escaping
* GH-128682: Spill the stack pointer in labels, as well as instructions ↵Mark Shannon2025-02-04
| | | | (GH-129618)
* GH-128563: Generate `opcode = ...` in instructions that need `opcode` ↵Mark Shannon2025-02-03
| | | | | (GH-129608) * Remove support for GO_TO_INSTRUCTION
* GH-128682: Make `PyStackRef_CLOSE` escaping. (GH-129404)Mark Shannon2025-02-03
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* GH-128563: Move some labels, to simplify implementing tailcalling ↵Mark Shannon2025-01-31
| | | | interpreter. (GH-129525)
* GH-126599: Remove the PyOptimizer API (GH-129194)Brandt Bucher2025-01-28
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* gh-115999: Enable free-threaded specialization of LOAD_CONST (#129365)T. Wouters2025-01-29
| | | | Enable free-threaded specialization of LOAD_CONST.
* GH-128914: Remove all but one conditional stack effects (GH-129226)Mark Shannon2025-01-27
| | | | | | | | | | | | | * Remove all 'if (0)' and 'if (1)' conditional stack effects * Use array instead of conditional for BUILD_SLICE args * Refactor LOAD_GLOBAL to use a common conditional uop * Remove conditional stack effects from LOAD_ATTR specializations * Replace conditional stack effects in LOAD_ATTR with a 0 or 1 sized array. * Remove conditional stack effects from CALL_FUNCTION_EX
* gh-128563: Move labels in ceval.c to bytecodes.c (GH-129112)Ken Jin2025-01-27
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* gh-128799: Add frame of except* to traceback when wrapping a naked exception ↵Irit Katriel2025-01-25
| | | | (#128971)
* Revert "GH-128914: Remove conditional stack effects from `bytecodes.c` and ↵Sam Gross2025-01-23
| | | | | | | the code generators (GH-128918)" (GH-129202) The commit introduced a ~2.5-3% regression in the free threading build. This reverts commit ab61d3f4303d14a413bc9ae6557c730ffdf7579e.
* GH-128682: Change a couple of functions to only steal references on success. ↵Mark Shannon2025-01-22
| | | | | (GH-129132) Change PyTuple_FromStackRefSteal and PyList_FromStackRefSteal to only steal on success to avoid escaping
* gh-128563: Move GO_TO_INSTRUCTION and PREDICT to cases generator (GH-129115)Ken Jin2025-01-22
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* GH-128563: Add new frame owner type for interpreter entry frames (GH-129078)Mark Shannon2025-01-21
| | | Add new frame owner type for interpreter entry frames
* GH-127953: Make line number lookup O(1) regardless of the size of the code ↵Mark Shannon2025-01-21
| | | | object (GH-128350)
* GH-128914: Remove conditional stack effects from `bytecodes.c` and the code ↵Mark Shannon2025-01-20
| | | | generators (GH-128918)
* gh-100239: specialize long tail of binary operations (#128722)Irit Katriel2025-01-16
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* gh-115999: Specialize `LOAD_ATTR` for instance and class receivers in ↵mpage2025-01-14
| | | | | | | free-threaded builds (#128164) Finish specialization for LOAD_ATTR in the free-threaded build by adding support for class and instance receivers.
* GH-128682: Convert explicit loops closing arrays into `DECREF_INPUTS`. ↵Mark Shannon2025-01-14
| | | | | | | (GH-128822) * Mark Py_DECREF and Py_XDECREF as escaping * Remove explicit loops for clearing array inputs
* GH-128682: Stronger checking of `PyStackRef_CLOSE` and `DEAD`. (GH-128683)Mark Shannon2025-01-13
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* GH-128685: Specialize (rather than quicken) LOAD_CONST into ↵Mark Shannon2025-01-13
| | | | LOAD_CONST_[IM]MORTAL (GH-128708)
* GH-127809: Fix the JIT's understanding of ** (GH-127844)Brandt Bucher2025-01-07
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* gh-115999: Add free-threaded specialization for COMPARE_OP (#126410)T. Wouters2025-01-07
| | | | | Add free-threaded specialization for COMPARE_OP, and tests for COMPARE_OP specialization in general. Co-authored-by: Donghee Na <donghee.na92@gmail.com>
* GH-128375: Better instrument for `FOR_ITER` (GH-128445)Mark Shannon2025-01-06
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* gh-128262: Allow specialization of calls to classes with __slots__ (GH-128263)Ken Jin2024-12-31
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* GH-127705: Add debug mode for `_PyStackRef`s inspired by HPy debug mode ↵Mark Shannon2024-12-20
| | | | (GH-128121)
* gh-115999: Specialize `STORE_ATTR` in free-threaded builds. (gh-127838)Neil Schemenauer2024-12-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add `_PyDictKeys_StringLookupSplit` which does locking on dict keys and use in place of `_PyDictKeys_StringLookup`. * Change `_PyObject_TryGetInstanceAttribute` to use that function in the case of split keys. * Add `unicodekeys_lookup_split` helper which allows code sharing between `_Py_dict_lookup` and `_PyDictKeys_StringLookupSplit`. * Fix locking for `STORE_ATTR_INSTANCE_VALUE`. Create `_GUARD_TYPE_VERSION_AND_LOCK` uop so that object stays locked and `tp_version_tag` cannot change. * Pass `tp_version_tag` to `specialize_dict_access()`, ensuring the version we store on the cache is the correct one (in case of it changing during the specalize analysis). * Split `analyze_descriptor` into `analyze_descriptor_load` and `analyze_descriptor_store` since those don't share much logic. Add `descriptor_is_class` helper function. * In `specialize_dict_access`, double check `_PyObject_GetManagedDict()` in case we race and dict was materialized before the lock. * Avoid borrowed references in `_Py_Specialize_StoreAttr()`. * Use `specialize()` and `unspecialize()` helpers. * Add unit tests to ensure specializing happens as expected in FT builds. * Add unit tests to attempt to trigger data races (useful for running under TSAN). * Add `has_split_table` function to `_testinternalcapi`.
* GH-122548: Implement branch taken and not taken events for sys.monitoring ↵Mark Shannon2024-12-19
| | | | (GH-122564)
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