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* [3.11] GH-97779: Ensure that *all* frame objects are backed by "complete" ↵Miss Islington (bot)2022-10-051-3/+19
| | | | | | | frames (GH-97886) (cherry picked from commit 0ff8fd65838f9f9ed90d7a055d26a2ce9fc0ce85) Co-authored-by: Brandt Bucher <brandtbucher@microsoft.com>
* GH-96187: Prevent _PyCode_GetExtra to return garbage for negative indexes ↵Miss Islington (bot)2022-08-231-1/+1
| | | | | | | (GH-96188) (cherry picked from commit 16ebae4cd4029205d932751f26c719c6cb8a6e92) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* gh-94936: C getters: co_varnames, co_cellvars, co_freevars (GH-95008)Miss Islington (bot)2022-08-041-0/+18
| | | | | (cherry picked from commit 42b102bbf9a9ae6fae8f6710202fb7afeeac277c) Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
* GH-95150: Use position and exception tables for code hashing and equality ↵Miss Islington (bot)2022-08-011-1/+18
| | | | | | | (GH-95509) (cherry picked from commit c7e5bbaee88a71dc6e633e3cd451ed1798436382) Co-authored-by: Brandt Bucher <brandtbucher@gmail.com>
* [3.11] GH-95113: Don't use EXTENDED_ARG_QUICK in unquickened code (GH-95121) ↵Brandt Bucher2022-07-221-1/+1
| | | | | (GH-95143) (cherry picked from commit e402b26b7fb953a2f0c17a0044bb6d6cbd726e54)
* [3.11] GH-95060: Fix PyCode_Addr2Location when addrq < 0 (GH-95094)Miss Islington (bot)2022-07-211-0/+1
| | | | | | (cherry picked from commit a6daaf2a132efbb1965b4502ff8a8cf3b5afed0e) Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
* [3.11] GH-94262: Don't create frame objects for frames that aren't yet ↵Miss Islington (bot)2022-07-041-6/+5
| | | | | complete. (GH-94371) (#94482) Co-authored-by: Mark Shannon <mark@hotpy.org>
* [3.11] GH-93516: Backport GH-93769 (GH-94231)Mark Shannon2022-06-281-0/+6
| | | * Store offset of first traceable instruction to avoid having to recompute it all the time when tracing.
* gh-88116: Avoid undefined behavior when decoding varints in code objects ↵Miss Islington (bot)2022-06-281-8/+8
| | | | | | | (GH-94375) (cherry picked from commit c485ec014ce174bb3f5ae948151dc40e0f6d5f7f) Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* [3.11] gh-93382: Cache result of `PyCode_GetCode` in codeobject (GH-93383) ↵Ken Jin2022-06-231-0/+8
| | | | | | (#93493) Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com> Co-authored-by: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
* [3.11] GH-93516: Backport GH-93769: Speedup line number checks when tracing ↵Mark Shannon2022-06-221-0/+56
| | | | | (GH-94127) Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* GH-93249: relax overly strict assertion on bounds->ar_start (GH-93961) ↵Miss Islington (bot)2022-06-201-1/+6
| | | | | | | | | (GH-94032) (cherry picked from commit 1603a1029f44f0fdc87c65b02063229962194f84) Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com> Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>
* 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.)
* Remove legacy opcache structs (GH-27164)Ken Jin2021-07-161-1/+1
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* bpo-43950: Add option to opt-out of PEP-657 (GH-27023)Ammar Askar2021-07-071-10/+37
| | | | | Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com> Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
* bpo-44530: Add co_qualname field to PyCodeObject (GH-26941)Gabriele N. Tornetta2021-07-071-20/+36
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* bpo-43950: use 0-indexed column offsets for bytecode positions (GH-27011)Batuhan Taskaya2021-07-041-11/+8
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* bpo-43950: Add code.co_positions (PEP 657) (GH-26955)Pablo Galindo2021-07-021-8/+211
| | | | | | | | | | | | | | | This PR is part of PEP 657 and augments the compiler to emit ending line numbers as well as starting and ending columns from the AST into compiled code objects. This allows bytecodes to be correlated to the exact source code ranges that generated them. This information is made available through the following public APIs: * The `co_positions` method on code objects. * The C API function `PyCode_Addr2Location`. Co-authored-by: Batuhan Taskaya <isidentical@gmail.com> Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
* bpo-43693 Get rid of CO_NOFREE -- it's unused (GH-26839)Guido van Rossum2021-06-231-7/+0
| | | | | | All uses of this flag are either setting it or in doc or tests for it. So we should be able to get rid of it completely.
* bpo-43693: Turn localspluskinds into an object (GH-26749)Guido van Rossum2021-06-211-19/+24
| | | Managing it as a bare pointer to malloc'ed bytes is just too awkward in a few places.
* bpo-43693: Eliminate unused "fast locals". (gh-26587)Eric Snow2021-06-151-74/+36
| | | | | Currently, if an arg value escapes (into the closure for an inner function) we end up allocating two indices in the fast locals even though only one gets used. Additionally, using the lower index would be better in some cases, such as with no-arg `super()`. To address this, we update the compiler to fix the offsets so each variable only gets one "fast local". As a consequence, now some cell offsets are interspersed with the locals (only when an arg escapes to an inner function). https://bugs.python.org/issue43693
* bpo-44338: Port LOAD_GLOBAL to PEP 659 adaptive interpreter (GH-26638)Mark Shannon2021-06-141-68/+6
| | | | | | | | | | * Add specializations of LOAD_GLOBAL. * Add more stats. * Remove old opcache; it is no longer used. * Add NEWS
* Add more const modifiers. (GH-26691)Serhiy Storchaka2021-06-121-3/+3
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* bpo-43693: Un-revert commits 2c1e258 and b2bf2bc. (gh-26577)Eric Snow2021-06-071-71/+348
| | | | | | | | | | These were reverted in gh-26530 (commit 17c4edc) due to refleaks. * 2c1e258 - Compute deref offsets in compiler (gh-25152) * b2bf2bc - Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388) This change fixes the refleaks. https://bugs.python.org/issue43693
* bpo-44187: Quickening infrastructure (GH-26264)Mark Shannon2021-06-071-1/+9
| | | | | | | | | | | | | | * Add co_firstinstr field to code object. * Implement barebones quickening. * Use non-quickened bytecode when tracing. * Add NEWS item * Add new file to Windows build. * Don't specialize instructions with EXTENDED_ARG.
* bpo-43693: Revert commits 2c1e2583fdc4db6b43d163239ea42b0e8394171f and ↵Pablo Galindo2021-06-041-339/+70
| | | | | | | | | | | | | b2bf2bc1ece673d387341e06c8d3c2bc6e259747 (GH-26530) * Revert "bpo-43693: Compute deref offsets in compiler (gh-25152)" This reverts commit b2bf2bc1ece673d387341e06c8d3c2bc6e259747. * Revert "bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)" This reverts commit 2c1e2583fdc4db6b43d163239ea42b0e8394171f. These two commits are breaking the refleak buildbots.
* bpo-43693: Compute deref offsets in compiler (gh-25152)Mark Shannon2021-06-041-7/+2
| | | | | | Merges locals and cells into a single array. Saves a pointer in the interpreter and means that we don't need the LOAD_CLOSURE opcode any more https://bugs.python.org/issue43693
* bpo-43693: Add new internal code objects fields: co_fastlocalnames and ↵Eric Snow2021-06-031-70/+344
| | | | | | | | | | | | | | | | | co_fastlocalkinds. (gh-26388) A number of places in the code base (notably ceval.c and frameobject.c) rely on mapping variable names to indices in the frame "locals plus" array (AKA fast locals), and thus opargs. Currently the compiler indirectly encodes that information on the code object as the tuples co_varnames, co_cellvars, and co_freevars. At runtime the dependent code must calculate the proper mapping from those, which isn't ideal and impacts performance-sensitive sections. This is something we can easily address in the compiler instead. This change addresses the situation by replacing internal use of co_varnames, etc. with a single combined tuple of names in locals-plus order, along with a minimal array mapping each to its kind (local vs. cell vs. free). These two new PyCodeObject fields, co_fastlocalnames and co_fastllocalkinds, are not exposed to Python code for now, but co_varnames, etc. are still available with the same values as before (though computed lazily). Aside from the (mild) performance impact, there are a number of other benefits: * there's now a clear, direct relationship between locals-plus and variables * code that relies on the locals-plus-to-name mapping is simpler * marshaled code objects are smaller and serialize/de-serialize faster Also note that we can take this approach further by expanding the possible values in co_fastlocalkinds to include specific argument types (e.g. positional-only, kwargs). Doing so would allow further speed-ups in _PyEval_MakeFrameVector(), which is where args get unpacked into the locals-plus array. It would also allow us to shrink marshaled code objects even further. https://bugs.python.org/issue43693
* bpo-43693: Add _PyCode_New(). (gh-26375)Eric Snow2021-05-271-147/+206
| | | | | This is an internal-only API that helps us manage the many values used to create a code object. https://bugs.python.org/issue43693
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