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* bpo-46709: check eval breaker in specialized `CALL` opcodes (GH-31404)Nikita Sobolev2022-02-181-0/+9
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* bpo-46702: Specialize UNPACK_SEQUENCE (GH-31240)Brandt Bucher2022-02-161-33/+66
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* Include length in stats for UNPACK_SEQUENCE. (GH-31254)Mark Shannon2022-02-141-2/+2
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* bpo-45923: Add `RESUME_QUICK` (GH-31244)Brandt Bucher2022-02-101-7/+9
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* Gather stats for PRECALL_METHOD. (GH-31259)Mark Shannon2022-02-101-2/+13
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* bpo-46532: Reduce number of memory writes to update call_shape.kwnames. ↵Mark Shannon2022-02-101-7/+15
| | | | (GH-31231)
* Fix sys.getdxp() when configured with --enable-pystats. (GH-31251)Mark Shannon2022-02-101-1/+17
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* Add stats for PRECALL_FUNCTION. (GH-31250)Mark Shannon2022-02-101-0/+5
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* bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized ↵Eric Snow2022-02-081-56/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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-46675: Allow object value arrays and split key dictionaries larger than ↵Mark Shannon2022-02-081-3/+2
| | | | 16 (GH-31191)
* bpo-46072: Merge dxpairs into py_stats. (GH-31197)Mark Shannon2022-02-071-60/+17
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* bpo-46670: Remove unused macros in ceval.c (GH-31196)Victor Stinner2022-02-071-7/+2
| | | Remove CHECKEXC() and EXT_POP() macros.
* Add miss stats for specialized instructions. (GH-31108)Mark Shannon2022-02-041-0/+1
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* Collect stats for UNPACK_SEQUENCE. (GH-31105)Mark Shannon2022-02-031-0/+6
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* Pass reference to func, as well as args, when pushing frame. (GH-31100)Mark Shannon2022-02-031-5/+5
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* Add specialization stats for FOR_ITER. (GH-31079)Mark Shannon2022-02-021-0/+5
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* bpo-46072: Add some frame stats. (GH-31060)Mark Shannon2022-02-021-1/+4
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* fFx refleak in isinstance error path (GH-31005)Ken Jin2022-01-291-0/+1
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* bpo-46072: Add simple stats for Python calls. (GH-30989)Mark Shannon2022-01-281-0/+4
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* bpo-46329: Split calls into precall and call instructions. (GH-30855)Mark Shannon2022-01-281-190/+325
| | | | | | | | | | | | | | * Add PRECALL_FUNCTION opcode. * Move 'call shape' varaibles into struct. * Replace CALL_NO_KW and CALL_KW with KW_NAMES and CALL instructions. * Specialize for builtin methods taking using the METH_FASTCALL | METH_KEYWORDS protocol. * Allow kwnames for specialized calls to builtin types. * Specialize calls to tuple(arg) and str(arg).
* bpo-46528: Simplify the VM's stack manipulations (GH-30902)Brandt Bucher2022-01-261-59/+9
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* Use existing unbound_local_error label in DELETE_FAST opcode (GH-30882)Kumar Aditya2022-01-261-6/+1
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* bpo-46420: Use NOTRACE_DISPATCH() in specialized opcodes (GH-30652)Dennis Sweeney2022-01-251-26/+43
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* bpo-43683: Streamline YIELD_VALUE and SEND (GH-30723)Mark Shannon2022-01-241-21/+14
| | | | | | | | * Split YIELD_VALUE into ASYNC_GEN_WRAP; YIELD_VALUE for async generators. * Split SEND into SEND; YIELD_VALUE. * Document new opcodes.
* bpo-46409: Make generators in bytecode (GH-30633)Mark Shannon2022-01-201-107/+88
| | | | | | | | | | | | * 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-45953: Statically initialize all the non-object PyInterpreterState ↵Eric Snow2022-01-141-2/+0
| | | | | fields we can. (gh-30589) https://bugs.python.org/issue45953
* bpo-45953: Statically initialize all the PyThreadState fields we can. (gh-30590)Eric Snow2022-01-141-4/+0
| | | https://bugs.python.org/issue45953
* bpo-45953: Statically allocate the main interpreter (and initial thread ↵Eric Snow2022-01-121-1/+1
| | | | | | | | | state). (gh-29883) Previously, the main interpreter was allocated on the heap during runtime initialization. Here we instead embed it into _PyRuntimeState, which means it is statically allocated as part of the _PyRuntime global. The same goes for the initial thread state (of each interpreter, including the main one). Consequently there are fewer allocations during runtime/interpreter init, fewer possible failures, and better memory locality. FYI, this also helps efforts to consolidate globals, which in turns helps work on subinterpreter isolation. https://bugs.python.org/issue45953
* bpo-46347: Yet another fix in the erorr path of PyEval_EvalCodeEx (#30554)Yury Selivanov2022-01-121-1/+0
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* bpo-46347: Fix PyEval_EvalCodeEx to correctly cleanup in error paths (#30551)Yury Selivanov2022-01-111-13/+9
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* bpo-46347: Fix memory leak in PyEval_EvalCodeEx. (#30546)Yury Selivanov2022-01-111-7/+0
| | | First introduced in 0332e569c12d3dc97171546c6dc10e42c27de34b
* bpo-45923: Handle call events in bytecode (GH-30364)Mark Shannon2022-01-061-44/+73
| | | | * Add a RESUME instruction to handle "call" events.
* bpo-46031: add POP_JUMP_IF_NOT_NONE and POP_JUMP_IF_NONE (GH-30019)penguin_wwy2022-01-061-0/+24
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* bpo-45256: Don't track the exact depth of each `InterpreterFrame` (GH-30372)Brandt Bucher2022-01-051-8/+5
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* bpo-46009: Remove GEN_START (GH-30367)Brandt Bucher2022-01-041-8/+0
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* bpo-46202: Remove opcode POP_EXCEPT_AND_RERAISE (GH-30302)Irit Katriel2022-01-041-25/+0
| | | | | | * bpo-46202: remove opcode POP_EXCEPT_AND_RERAISE * do not assume that an exception group is truthy
* bpo-46219, 46221: simplify except* implementation following exc_info ↵Irit Katriel2022-01-021-132/+1
| | | | changes. Move helpers to exceptions.c. Do not assume that exception groups are truthy. (GH-30289)
* bpo-46072: Add top level stats struct (GH-30169)Mark Shannon2021-12-171-23/+8
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* bpo-45711: Remove type and traceback from exc_info (GH-30122)Irit Katriel2021-12-171-158/+54
| | | | | | | | * Do not PUSH/POP traceback or type to the stack as part of exc_info * Remove exc_traceback and exc_type from _PyErr_StackItem * Add to what's new, because this change breaks things like Cython
* bpo-46072: Add --with-pystats configure option to simplify gathering of VM ↵Mark Shannon2021-12-151-2/+2
| | | | | | | | | stats (GH-30116) * Simplify specialization stats collection macros. * Add --enable-pystats option to configure. * Update specialization summary script to handle larger number of kinds
* bpo-44525: Specialize for calls to type and other builtin classes with 1 ↵Mark Shannon2021-12-151-0/+35
| | | | argument. (GH-29942)
* bpo-46039: Split yield from in two (GH-30035)Mark Shannon2021-12-151-10/+11
| | | | | | * Split YIELD_FROM opcode into SEND and JUMP_ABSOLUTE. * Remove YIELD_FROM opcode.
* bpo-44525: Split calls into PRECALL and CALL (GH-30011)Mark Shannon2021-12-141-58/+158
| | | | | | | | | | * Add 3 new opcodes for calls: PRECALL_METHOD, CALL_NO_KW, CALL_KW. * Update specialization to handle new CALL opcodes. * Specialize call to method descriptors. * Remove old CALL opcodes: CALL_FUNCTION, CALL_METHOD, CALL_METHOD_KW, CALL_FUNCTION_KW.
* bpo-45292: [PEP-654] add except* (GH-29581)Irit Katriel2021-12-141-8/+347
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* bpo-46009: Do not exhaust generator when send() method raises (GH-29986)Mark Shannon2021-12-081-18/+2
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* bpo-46008: Move thread-related interpreter state into a sub-struct. (gh-29971)Eric Snow2021-12-071-1/+1
| | | | | This parallels _PyRuntimeState.interpreters. Doing this helps make it more clear what part of PyInterpreterState relates to its threads. https://bugs.python.org/issue46008
* bpo-46008: Return void from _PyEval_InitState(). (gh-29970)Eric Snow2021-12-071-8/+3
| | | | | This falls into the category of keep-allocation-and-initialization separate. It also allows us to use _PyEval_InitState() safely in functions that return void. https://bugs.python.org/issue46008
* Fix leak when an exception is raised during generator creation. (GH-29960)Mark Shannon2021-12-071-20/+7
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* bpo-45947: Place dict and values pointer at fixed (negative) offset just ↵Mark Shannon2021-12-071-13/+11
| | | | | | | | | | | | | | | | | | | before GC header. (GH-29879) * Place __dict__ immediately before GC header for plain Python objects. * Fix up lazy dict creation logic to use managed dict pointers. * Manage values pointer, placing them directly before managed dict pointers. * Convert hint-based load/store attr specialization target managed dict classes. * Specialize LOAD_METHOD for managed dict objects. * Remove unsafe _PyObject_GC_Calloc function. * Remove unsafe _PyObject_GC_Malloc() function. * Add comment explaning use of Py_TPFLAGS_MANAGED_DICT.
* bpo-45963: Make space for the InterpreterFrame of a generator in that ↵Mark Shannon2021-12-061-30/+11
| | | | | | | generator. (GH-29891) * Make generator, coroutine and async gen structs all the same size. * Store interpreter frame in generator (and coroutine). Reduces the number of allocations neeeded for a generator from two to one.
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