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* GH-91742: Fix pdb crash after jump (GH-94171)Kumar Aditya2022-06-231-1/+1
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* GH-91432: Specialize FOR_ITER (GH-91713)Dennis Sweeney2022-06-211-1/+1
| | | | | * Adds FOR_ITER_LIST and FOR_ITER_RANGE specializations. * Adds _PyLong_AssignValue() internal function to avoid temporary boxing of ints.
* GH-93897: Store frame size in code object and de-opt if insufficient space ↵Mark Shannon2022-06-201-1/+2
| | | | on thread frame stack. (GH-93908)
* gh-93382: Cache result of `PyCode_GetCode` in codeobject (GH-93383)Ken Jin2022-06-031-0/+8
| | | | Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com> Co-authored-by: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
* gh-93143: Avoid NULL check in LOAD_FAST based on analysis in the compiler ↵Dennis Sweeney2022-05-311-0/+27
| | | | (GH-93144)
* gh-89653: PEP 670: Convert PyCell macros to functions (#92653)Victor Stinner2022-05-111-1/+1
| | | | | | | | | | | Convert the following macros to static inline functions: * PyCell_GET() * PyCell_SET() Limited C API version 3.12 no longer casts arguments. Fix also usage of PyCell_SET(): only delete the old value after setting the new value.
* gh-91719: Add pycore_opcode.h internal header file (#91906)Victor Stinner2022-04-251-2/+3
| | | | | | | | | | | 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: Use a compact format to represent end line and column offsets. ↵Mark Shannon2022-04-211-1/+5
| | | | | | | | | | | | (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-40421: Cleanup PyFrame C API (GH-32417)Victor Stinner2022-04-191-1/+1
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* gh-91502: Add a new API to check if a frame is an entry frame (GH-91503)Pablo Galindo Salgado2022-04-131-0/+8
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* bpo-47120: make POP_JUMP_IF_TRUE/FALSE/NONE/NOT_NONE relative (GH-32400)Irit Katriel2022-04-111-2/+12
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* Add new PyFrame_GetLasti C-API function (GH-32413)Mark Shannon2022-04-081-1/+11
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* bpo-47177: Replace `f_lasti` with `prev_instr` (GH-32208)Brandt Bucher2022-04-071-17/+18
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* bpo-47120: make JUMP_NO_INTERRUPT relative (GH-32221)Irit Katriel2022-04-051-9/+5
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* bpo-47186: Replace JUMP_IF_NOT_EG_MATCH by CHECK_EG_MATCH + jump (GH-32309)Irit Katriel2022-04-051-8/+2
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* bpo-47186: Replace JUMP_IF_NOT_EXC_MATCH by CHECK_EXC_MATCH + jump (GH-32231)Irit Katriel2022-04-011-3/+1
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* bpo-40421: Add missing getters for frame object attributes to C-API. (GH-32114)Mark Shannon2022-03-311-0/+22
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* bpo-47120: Replace the JUMP_ABSOLUTE opcode by the relative JUMP_BACKWARD ↵Irit Katriel2022-03-311-1/+6
| | | | (GH-32115)
* bpo-42197: Don't create `f_locals` dictionary unless we actually need it. ↵Mark Shannon2022-03-251-6/+17
| | | | | | | | | | | (GH-32055) * `PyFrame_FastToLocalsWithError` and `PyFrame_LocalsToFast` are no longer called during profile and tracing. (Contributed by Fabio Zadrozny) * Make accesses to a frame's `f_locals` safe from C code, not relying on calls to `PyFrame_FastToLocals` or `PyFrame_LocalsToFast`. * Document new `PyFrame_GetLocals` C-API function.
* bpo-47045: Remove `f_state` field (GH-31963)Mark Shannon2022-03-221-42/+83
| | | | | * Remove the f_state field from _PyInterpreterFrame * Make ownership of the frame explicit, replacing the is_generator field with an owner field.
* bpo-46841: Quicken code in-place (GH-31888)Brandt Bucher2022-03-211-9/+30
| | | | | | | | | | | | | | | | | | | * 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-45786: Remove _PyFrame_Fini() and _PyFrame_DebugMallocStats() (GH-31874)Victor Stinner2022-03-181-11/+0
| | | | Remove private empty _PyFrame_Fini() and _PyFrame_DebugMallocStats() functions.
* bpo-46836: Rename InterpreterFrame to _PyInterpreterFrame (GH-31583)Victor Stinner2022-02-251-10/+10
| | | | | Rename also struct _interpreter_frame to struct _PyInterpreterFrame. Reduce risk of name conflicts if a project includes pycore_frame.h.
* bpo-45316: Move private PyCode C API to internal C API (GH-31576)Victor Stinner2022-02-251-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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).
* bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized ↵Eric Snow2022-02-081-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | global objects. (gh-30928) We're no longer using _Py_IDENTIFIER() (or _Py_static_string()) in any core CPython code. It is still used in a number of non-builtin stdlib modules. The replacement is: PyUnicodeObject (not pointer) fields under _PyRuntimeState, statically initialized as part of _PyRuntime. A new _Py_GET_GLOBAL_IDENTIFIER() macro facilitates lookup of the fields (along with _Py_GET_GLOBAL_STRING() for non-identifier strings). https://bugs.python.org/issue46541#msg411799 explains the rationale for this change. The core of the change is in: * (new) Include/internal/pycore_global_strings.h - the declarations for the global strings, along with the macros * Include/internal/pycore_runtime_init.h - added the static initializers for the global strings * Include/internal/pycore_global_objects.h - where the struct in pycore_global_strings.h is hooked into _PyRuntimeState * Tools/scripts/generate_global_objects.py - added generation of the global string declarations and static initializers I've also added a --check flag to generate_global_objects.py (along with make check-global-objects) to check for unused global strings. That check is added to the PR CI config. The remainder of this change updates the core code to use _Py_GET_GLOBAL_IDENTIFIER() instead of _Py_IDENTIFIER() and the related _Py*Id functions (likewise for _Py_GET_GLOBAL_STRING() instead of _Py_static_string()). This includes adding a few functions where there wasn't already an alternative to _Py*Id(), replacing the _Py_Identifier * parameter with PyObject *. The following are not changed (yet): * stop using _Py_IDENTIFIER() in the stdlib modules * (maybe) get rid of _Py_IDENTIFIER(), etc. entirely -- this may not be doable as at least one package on PyPI using this (private) API * (maybe) intern the strings during runtime init https://bugs.python.org/issue46541
* bpo-46670: Remove unused get_frame_state() function (GH-31177)Victor Stinner2022-02-071-9/+0
| | | The PyFrame_MAXFREELIST macro is no longer defined.
* Pass reference to func, as well as args, when pushing frame. (GH-31100)Mark Shannon2022-02-031-0/+2
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* bpo-46072: Add some frame stats. (GH-31060)Mark Shannon2022-02-021-0/+1
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* bpo-46409: Make generators in bytecode (GH-30633)Mark Shannon2022-01-201-3/+7
| | | | | | | | | | | | * Add RETURN_GENERATOR and JUMP_NO_INTERRUPT opcodes. * Trim frame and generator by word each. * Minor refactor of frame.c * Update test.test_sys to account for smaller frames. * Treat generator functions as normal functions when evaluating and specializing.
* bpo-46009: Remove GEN_START (GH-30367)Brandt Bucher2022-01-041-3/+5
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* bpo-46202: Remove opcode POP_EXCEPT_AND_RERAISE (GH-30302)Irit Katriel2022-01-041-1/+0
| | | | | | * bpo-46202: remove opcode POP_EXCEPT_AND_RERAISE * do not assume that an exception group is truthy
* bpo-46039: Split yield from in two (GH-30035)Mark Shannon2021-12-151-1/+7
| | | | | | * Split YIELD_FROM opcode into SEND and JUMP_ABSOLUTE. * Remove YIELD_FROM opcode.
* bpo-45292: [PEP-654] add except* (GH-29581)Irit Katriel2021-12-141-1/+4
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* bpo-45813: Drop redundant assertion from frame.clear() (GH-29990)Andrew Svetlov2021-12-081-1/+4
| | | | | * bpo-45813: Drop redundant assertion from frame.clear() * Move assertion to frame_dealloc()
* bpo-45786: Allocate space for frame in frame object. (GH-29729)Mark Shannon2021-11-291-115/+26
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* bpo-44525: Copy free variables in bytecode to allow calls to inner functions ↵Mark Shannon2021-11-231-8/+24
| | | | | | | | | | | to be specialized (GH-29595) * Make internal APIs that take PyFrameConstructor take a PyFunctionObject instead. * Add reference to function to frame, borrow references to builtins and globals. * Add COPY_FREE_VARS instruction to allow specialization of calls to inner functions.
* bpo-45256: Rationalize code around Python-to-Python calls a bit. (GH-29235)Mark Shannon2021-10-281-6/+5
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* bpo-45522: Allow to disable freelists on build time (GH-29056)Christian Heimes2021-10-211-6/+17
| | | | | | | | Freelists for object structs can now be disabled. A new ``configure`` option ``--without-freelists`` can be used to disable all freelists except empty tuple singleton. Internal Py*_MAXFREELIST macros can now be defined as 0 without causing compiler warnings and segfaults. Signed-off-by: Christian Heimes <christian@python.org>
* Fix typos in the Objects directory (GH-28766)Christian Clauss2021-10-061-1/+1
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* bpo-45355: More use of sizeof(_Py_CODEUNIT) (GH-28720)Serhiy Storchaka2021-10-041-2/+2
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* bpo-45355: Use sizeof(_Py_CODEUNIT) instead of literal 2 for the size of the ↵Serhiy Storchaka2021-10-031-2/+2
| | | | code unit (GH-28711)
* bpo-44990: Change layout of evaluation frames. "Layout B" (GH-27933)Mark Shannon2021-08-251-17/+7
| | | Places the locals between the specials and stack. This is the more "natural" layout for a C struct, makes the code simpler and gives a slight speedup (~1%)
* bpo-44872: use new trashcan macros in framobject.c (#27683)Irit Katriel2021-08-091-2/+2
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* bpo-44590: Lazily allocate frame objects (GH-27077)Mark Shannon2021-07-261-160/+136
| | | | | | | | | | | | | | * Convert "specials" array to InterpreterFrame struct, adding f_lasti, f_state and other non-debug FrameObject fields to it. * Refactor, calls pushing the call to the interpreter upward toward _PyEval_Vector. * Compute f_back when on thread stack, only filling in value when frame object outlives stack invocation. * Move ownership of InterpreterFrame in generator from frame object to generator object. * Do not create frame objects for Python calls. * Do not create frame objects for generators.
* bpo-43693: Turn localspluskinds into an object (GH-26749)Guido van Rossum2021-06-211-2/+2
| | | Managing it as a bare pointer to malloc'ed bytes is just too awkward in a few places.
* bpo-44032: Move pointer to code object from frame-object to frame specials ↵Mark Shannon2021-06-181-16/+23
| | | | array. (GH-26771)
* Do not clear globals or builtins when calling clear() on a frame object. ↵Mark Shannon2021-06-171-5/+4
| | | | Reverts behavior to that of 3.10 and earlier. (GH-26768)
* bpo-43693: Eliminate unused "fast locals". (gh-26587)Eric Snow2021-06-151-78/+13
| | | | | 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-43693: Do not check co_cell2arg if a non-cell offset. (gh-26626)Eric Snow2021-06-091-2/+5
| | | | | This is the same fix as for PyFrame_LocalsToFast() in gh-26609, but applied to PyFrame_FastToLocalsWithError(). (It should have been in that PR.) https://bugs.python.org/issue43693
* bpo-43693: Un-revert commit f3fa63e. (#26609)Eric Snow2021-06-081-13/+116
| | | | | | | | | This was reverted in GH-26596 (commit 6d518bb) due to some bad memory accesses. * Add the MAKE_CELL opcode. (gh-26396) The memory accesses have been fixed. https://bugs.python.org/issue43693
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