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* gh-94155: Reduce hash collisions for code objects (#100183)Dennis Sweeney2022-12-231-20/+33
| | | | | | | * Uses a better hashing algorithm to get better dispersion and remove commutativity. * Incorporates `co_firstlineno`, `Py_SIZE(co)`, and bytecode instructions. * This is now the entire set of criteria used in `code_richcompare`, except for `_PyCode_ConstantKey` (which would incorporate the types of `co_consts` rather than just their values).
* GH-100000: Cleanup and polish various watchers code (GH-99998)Itamar Ostricher2022-12-141-4/+11
| | | | | | * Initialize `type_watchers` array to `NULL`s * Optimize code watchers notification * Optimize func watchers notification
* GH-100222: Redefine _Py_CODEUNIT as a union to clarify structure of code ↵Mark Shannon2022-12-141-5/+6
| | | | unit. (GH-100223)
* GH-98522: Add version number to code objects. (GH-98525)Mark Shannon2022-12-091-2/+4
| | | | | | * Add version number to code object for better versioning of functions. * Improves specialization for closures and list comprehensions.
* GH-91054: Add code object watchers API (GH-99859)Itamar Ostricher2022-12-021-0/+63
| | | | | | * Add API to allow extensions to set callback function on creation and destruction of PyCodeObject Co-authored-by: Ye11ow-Flash <janshah@cs.stonybrook.edu>
* gh-99845: Clean up _PyObject_VAR_SIZE() usage (#99847)Victor Stinner2022-11-291-6/+4
| | | | | | * code_sizeof() now uses an unsigned type (size_t) to compute the result. * Fix _PyObject_ComputedDictPointer(): cast _PyObject_VAR_SIZE() to Py_ssize_t, rather than long: it's a different type on 64-bit Windows. * Clarify that _PyObject_VAR_SIZE() uses an unsigned type (size_t).
* gh-99300: Use Py_NewRef() in Objects/ directory (#99332)Victor Stinner2022-11-101-34/+17
| | | | Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and Py_XNewRef() in C files of the Objects/ directory.
* GH-96421: Insert shim frame on entry to interpreter (GH-96319)Mark Shannon2022-11-101-0/+75
| | | | | | * Adds EXIT_INTERPRETER instruction to exit PyEval_EvalDefault() * Simplifies RETURN_VALUE, YIELD_VALUE and RETURN_GENERATOR instructions as they no longer need to check for entry frames.
* GH-98686: Quicken everything (GH-98687)Brandt Bucher2022-11-021-10/+6
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* gh-95756: Free and NULL-out code caches when needed (GH-98181)Ken Jin2022-10-111-0/+1
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* gh-95756: Lazily created cached co_* attrs (GH-97791)Ken Jin2022-10-111-10/+67
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* GH-97779: Ensure that *all* frame objects are backed by "complete" frames ↵Brandt Bucher2022-10-051-3/+19
| | | | (GH-97845)
* gh-94808: `_PyLineTable_StartsLine` was not used (GH-96609)Nikita Sobolev2022-10-031-27/+0
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* GH-96187: Prevent _PyCode_GetExtra to return garbage for negative indexes ↵Pablo Galindo Salgado2022-08-231-1/+1
| | | | (GH-96188)
* gh-94936: C getters: co_varnames, co_cellvars, co_freevars (#95008)Ken Jin2022-08-041-0/+18
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* GH-95150: Use position and exception tables for code hashing and equality ↵Brandt Bucher2022-08-011-1/+18
| | | | (GH-95509)
* GH-95113: Don't use EXTENDED_ARG_QUICK in unquickened code (GH-95121)Brandt Bucher2022-07-221-1/+1
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* Fix PyCode_Addr2Location when addrq < 0 (GH-95091)Ken Jin2022-07-211-0/+1
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* GH-94262: Don't create frame objects for frames that aren't yet complete. ↵Mark Shannon2022-07-011-6/+5
| | | | (GH-94371)
* gh-88116: Avoid undefined behavior when decoding varints in code objects ↵Pablo Galindo Salgado2022-06-281-8/+8
| | | | (#94375)
* gh-93382: Sync up `co_code` changes with 3.11 (GH-94227)Ken Jin2022-06-241-1/+1
| | | Sync up co_code changes with 3.11 commit 852b4d4bcd12b0b6839a015a262ce976b134f6f3.
* GH-93249: relax overly strict assertion on bounds->ar_start (GH-93961)Irit Katriel2022-06-201-1/+6
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* GH-93516: Speedup line number checks when tracing. (GH-93763)Mark Shannon2022-06-201-0/+56
| | | | * Use a lookup table to reduce overhead of getting line numbers during tracing.
* GH-93897: Store frame size in code object and de-opt if insufficient space ↵Mark Shannon2022-06-201-0/+2
| | | | on thread frame stack. (GH-93908)
* GH-93516: Store offset of first traceable instruction in code object (GH-93769)Mark Shannon2022-06-141-0/+6
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* gh-93728: fix memory leak in deepfrozen code objects (GH-93729)Kumar Aditya2022-06-121-0/+1
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* gh-93382: Cache result of `PyCode_GetCode` in codeobject (GH-93383)Ken Jin2022-06-031-0/+7
| | | | Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com> Co-authored-by: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
* GH-92955: fix memory leak in code object lines and positions iterators ↵Kumar Aditya2022-05-191-4/+4
| | | | (gh-92956)
* gh-92031: Deoptimize Static Code at Finalization (GH-92039)Dennis Sweeney2022-05-031-10/+17
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* gh-92154: Expose PyCode_GetCode in the C API (GH-92168)Ken Jin2022-05-031-0/+5
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* gh-91719: Add pycore_opcode.h internal header file (#91906)Victor Stinner2022-04-251-0/+1
| | | | | | | | | | | Move the following API from Include/opcode.h (public C API) to a new Include/internal/pycore_opcode.h header file (internal C API): * EXTRA_CASES * _PyOpcode_Caches * _PyOpcode_Deopt * _PyOpcode_Jump * _PyOpcode_OpName * _PyOpcode_RelativeJump
* GH-88116: Document that PyCodeNew is dangerous, and make PyCode_NewEmpty ↵Mark Shannon2022-04-211-1/+15
| | | | less dangerous. (GH-91790)
* GH-88116: Use a compact format to represent end line and column offsets. ↵Mark Shannon2022-04-211-169/+318
| | | | | | | | | | | | (GH-91666) * Stores all location info in linetable to conform to PEP 626. * Remove column table from code objects. * Remove end-line table from code objects. * Document new location table format
* bpo-35134: Remove the Include/code.h header file (GH-32385)Victor Stinner2022-04-071-1/+0
| | | | | | Remove the Include/code.h header file. C extensions should only include the main <Python.h> header file. Python.h includes directly Include/cpython/code.h instead.
* bpo-46841: Use a `bytes` object for `_co_code_adaptive` (GH-32205)Brandt Bucher2022-04-011-2/+2
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* bpo-46841: Avoid unnecessary allocations in code object comparisons (GH-32222)Brandt Bucher2022-04-011-13/+13
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* bpo-46841: Quicken code in-place (GH-31888)Brandt Bucher2022-03-211-112/+101
| | | | | | | | | | | | | | | | | | | * Moves the bytecode to the end of the corresponding PyCodeObject, and quickens it in-place. * Removes the almost-always-unused co_varnames, co_freevars, and co_cellvars member caches * _PyOpcode_Deopt is a new mapping from all opcodes to their un-quickened forms. * _PyOpcode_InlineCacheEntries is renamed to _PyOpcode_Caches * _Py_IncrementCountAndMaybeQuicken is renamed to _PyCode_Warmup * _Py_Quicken is renamed to _PyCode_Quicken * _co_quickened is renamed to _co_code_adaptive (and is now a read-only memoryview). * Do not emit unused nonzero opargs anymore in the compiler.
* bpo-46841: Use inline caching for calls (GH-31709)Brandt Bucher2022-03-071-4/+1
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* Propagate errors (however unlikely) from _Py_Deepfreeze_Init() (GH-31596)Kumar Aditya2022-02-261-5/+11
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* bpo-45316: Move private PyCode C API to internal C API (GH-31576)Victor Stinner2022-02-251-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Rename private functions (no exported), add an underscore prefix: * PyLineTable_InitAddressRange() => _PyLineTable_InitAddressRange() * PyLineTable_NextAddressRange() => _PyLineTable_NextAddressRange() * PyLineTable_PreviousAddressRange() => _PyLineTable_PreviousAddressRange() Move private functions to the internal C API: * _PyCode_Addr2EndLine() * _PyCode_Addr2EndOffset() * _PyCode_Addr2Offset() * _PyCode_InitAddressRange() * _PyCode_InitEndAddressRange( * _PyLineTable_InitAddressRange() * _PyLineTable_NextAddressRange() * _PyLineTable_PreviousAddressRange() No longer export the following internal functions: * _PyCode_GetVarnames() * _PyCode_GetCellvars() * _PyCode_GetFreevars() * _Py_GetSpecializationStats() Add "extern" to pycore_code.h functions to identify them more easiliy (they are still not exported).
* Add (undocumented) _co_quickened attribute for code object. (GH-31552)Mark Shannon2022-02-241-2/+13
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* bpo-46765: Replace Locally Cached Strings with Statically Initialized ↵Eric Snow2022-02-231-6/+1
| | | | | Objects (gh-31366) https://bugs.python.org/issue46765
* bpo-46745: Fix typo in PositionsIterator (#31322)Robert-André Mauchin2022-02-171-1/+1
| | | Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
* bpo-46430: Intern strings in deep-frozen modules (GH-30683)Kumar Aditya2022-02-091-0/+12
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* bpo-46476: Simplify and fix _PyStaticCode_Dealloc (GH-30965)Christian Heimes2022-01-271-5/+8
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* bpo-46476: Fix memory leak in code objects generated by deepfreeze (GH-30853)Kumar Aditya2022-01-271-0/+15
| | | Add _Py_Deepfreeze_Fini() and _PyStaticCode_Dealloc() functions.
* bpo-45954: Rename PyConfig.no_debug_ranges to code_debug_ranges (GH-29886)Victor Stinner2021-12-021-1/+1
| | | | | | | Rename PyConfig.no_debug_ranges to PyConfig.code_debug_ranges and invert the value. Document -X no_debug_ranges and PYTHONNODEBUGRANGES env var in PyConfig.code_debug_ranges documentation.
* bpo-44530: Reverts a change to the 'code.__new__' audit event (GH-29809)Steve Dower2021-11-271-4/+4
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* bpo-45355: More use of sizeof(_Py_CODEUNIT) (GH-28720)Serhiy Storchaka2021-10-041-10/+6
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* Fix a SystemError in code.replace() (#27771)Guido van Rossum2021-08-161-3/+5
| | | | | | | While the comment said 'We don't bother resizing localspluskinds', this would cause .replace() to crash when it happened. (Also types.CodeType(), but testing that is tedious, and this tests all code paths.)
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