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* 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.
* bpo-45885: Specialize COMPARE_OP (GH-29734)Dennis Sweeney2021-12-031-0/+122
| | | | | | | * Add COMPARE_OP_ADAPTIVE adaptive instruction. * Add COMPARE_OP_FLOAT_JUMP, COMPARE_OP_INT_JUMP and COMPARE_OP_STR_JUMP specialized instructions. * Introduce and use _PyUnicode_Equal
* bpo-45753: Interpreter internal tweaks (GH-29575)Mark Shannon2021-12-011-139/+194
| | | | | | | | | | * Split exit paths into exceptional and non-exceptional. * Move exit tracing code to individual bytecodes. * Wrap all trace entry and exit events in macros to make them clearer and easier to enhance. * Move return sequence into RETURN_VALUE, YIELD_VALUE and YIELD_FROM. Distinguish between normal trace events and dtrace events.
* bpo-45711: Change exc_info related APIs to derive type and traceback from ↵Irit Katriel2021-11-301-6/+3
| | | | the exception instance (GH-29780)
* bpo-45786: Allocate space for frame in frame object. (GH-29729)Mark Shannon2021-11-291-7/+5
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* bpo-45711: use exc_value instead of exc_type to determine if exc_info is ↵Irit Katriel2021-11-251-4/+14
| | | | valid. Add more assertions. (GH-29627)
* bpo-44525: Copy free variables in bytecode to allow calls to inner functions ↵Mark Shannon2021-11-231-46/+66
| | | | | | | | | | | 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-45871: Refactor except matcher validation into a separate function so ↵Irit Katriel2021-11-221-23/+33
| | | | that it can be reused. Add missing unit test. (GH-29711)
* bpo-45709: Fix tracing when exception is handled. (GH-29638)Mark Shannon2021-11-191-4/+1
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* bpo-45609: Specialize STORE_SUBSCR (GH-29242)Dennis Sweeney2021-11-191-5/+80
| | | | | * Specialize STORE_SUBSCR for list[int], and dict[object] * Adds _PyDict_SetItem_Take2 which consumes references to the key and values.
* bpo-45829: Specialize BINARY_SUBSCR for __getitem__ implemented in Python. ↵Mark Shannon2021-11-181-23/+38
| | | | (GH-29592)
* bpo-45510: Specialize BINARY_SUBTRACT (GH-29523)Dong-hee Na2021-11-181-0/+35
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* bpo-45636: Simplify BINARY_OP (GH-29565)Brandt Bucher2021-11-161-83/+34
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* bpo-45753: Make recursion checks more efficient. (GH-29524)Mark Shannon2021-11-161-17/+24
| | | | * Uses recursion remaining, instead of recursion depth to speed up check against recursion limit.
* bpo-45636: Remove the old %-formatting fast-path (GH-29532)Brandt Bucher2021-11-151-8/+0
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* bpo-45711: assert that the type of exc_info is redundant (GH-29518)Irit Katriel2021-11-121-0/+25
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* bpo-45636: Merge all numeric operators (GH-29482)Brandt Bucher2021-11-111-453/+151
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* bpo-45711: remove unnecessary DUP_TOP and POP in exception handling (GH-29495)Irit Katriel2021-11-101-4/+1
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* bpo-45256: Rationalize code around Python-to-Python calls a bit. (GH-29235)Mark Shannon2021-10-281-57/+84
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* bpo-44525: Add recursive checks for `CALL_FUNCTION_BUILTIN_O` (GH-29271)Ken Jin2021-10-281-0/+6
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* bpo-45637: Store the frame pointer in the cframe (GH-29267)Mark Shannon2021-10-281-23/+24
| | | * Rename 'frame' to 'current_frame'
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