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* [3.12] gh-108487: Change assert that should've been DEOPT_IF (#108509)Guido van Rossum2023-08-261-1/+1
| | | | | | | | | | | | | | | | | | | | | * Remove assert that should've been DEOPT_IF The assert(method != NULL) in CALL_NO_KW_LIST_APPEND is wrong -- this condition should lead to a deoptimization, and indeed there is a DEOPT_IF two lines later that will trigger if method == NULL. This would crash in a devious repro scenario (first seen live in boto3 tests) when compiled with assertions enabled. In a production version there is no crash, so impact is limited. (The crash also appears in main; I will prepare a separate PR.) * Add back a different assert(self != NULL) * 📜🤖 Added by blurb_it. --------- Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
* [3.12] GH-107263: Increase C stack limit for most functions, except ↵Miss Islington (bot)2023-08-041-1/+1
| | | | | | | | | | `_PyEval_EvalFrameDefault()` (GH-107535) (#107618) GH-107263: Increase C stack limit for most functions, except `_PyEval_EvalFrameDefault()` (GH-107535) * Set C recursion limit to 1500, set cost of eval loop to 2 frames, and compiler mutliply to 2. (cherry picked from commit fa45958450aa3489607daf9855ca0474a2a20878) Co-authored-by: Mark Shannon <mark@hotpy.org>
* [3.12] GH-106895: Raise a `ValueError` when attempting to disable events ↵Mark Shannon2023-07-281-1/+6
| | | | that cannot be disabled. (GH-107337) (GH-107351)
* [3.12] GH-106897: Add `RERAISE` event to `sys.monitoring`. (GH-107291) ↵Mark Shannon2023-07-281-1/+8
| | | | | | (GH-107346) * Ensures that exception handling events are balanced. Each [re]raise event has a matching unwind/handled event.
* [3.12] gh-106917: fix super classmethod calls to non-classmethods ↵Carl Meyer2023-07-241-1/+1
| | | | | (GH-106977). (#107204) (cherry picked from commit e5d5522612e03af3941db1d270bf6caebf330b8a)
* [3.12] gh-105035: fix super() calls on unusual types (e.g. meta-types) ↵Miss Islington (bot)2023-05-301-1/+3
| | | | | | | | (GH-105094) (#105117) gh-105035: fix super() calls on unusual types (e.g. meta-types) (GH-105094) (cherry picked from commit 68c75c31536e8c87901934f2d6da81f54f4334f9) Co-authored-by: Carl Meyer <carl@oddbird.net>
* GH-104580: Don't cache eval breaker in interpreter (GH-104581)Mark Shannon2023-05-181-3/+2
| | | Move eval-breaker to the front of the interpreter state.
* GH-103906: Remove immortal refcounting in the interpreter (GH-103909)Brandt Bucher2023-05-161-32/+14
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* gh-103865: add monitoring support to LOAD_SUPER_ATTR (#103866)Carl Meyer2023-05-161-0/+32
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* gh-103763: Implement PEP 695 (#103764)Jelle Zijlstra2023-05-161-17/+36
| | | | | | | | | | | | | | This implements PEP 695, Type Parameter Syntax. It adds support for: - Generic functions (def func[T](): ...) - Generic classes (class X[T](): ...) - Type aliases (type X = ...) - New scoping when the new syntax is used within a class body - Compiler and interpreter changes to support the new syntax and scoping rules Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com> Co-authored-by: Eric Traut <eric@traut.com> Co-authored-by: Larry Hastings <larry@hastings.org> Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
* GH-104405: Add missing PEP 523 checks (GH-104406)Brandt Bucher2023-05-121-2/+6
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* GH-103082: Filter LINE events in VM, to simplify tool implementation. ↵Mark Shannon2023-05-121-22/+0
| | | | | | | | (GH-104387) When monitoring LINE events, instrument all instructions that can have a predecessor on a different line. Then check that the a new line has been hit in the instrumentation code. This brings the behavior closer to that of 3.11, simplifying implementation and porting of tools.
* gh-104413: Fix refleak when super attribute throws AttributeError (#104414)Jelle Zijlstra2023-05-121-1/+1
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* gh-87729: improve hit rate of LOAD_SUPER_ATTR specialization (#104270)Carl Meyer2023-05-111-9/+31
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* gh-87849: fix SEND specialization family definition (GH-104268)Carl Meyer2023-05-111-2/+2
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* gh-97933: (PEP 709) inline list/dict/set comprehensions (#101441)Carl Meyer2023-05-091-0/+6
| | | | Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com> Co-authored-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
* gh-98003: Inline call frames for CALL_FUNCTION_EX (GH-98004)Ken Jin2023-04-301-0/+19
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* gh-87729: specialize LOAD_SUPER_ATTR_METHOD (#103809)Carl Meyer2023-04-251-26/+39
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* gh-87729: add LOAD_SUPER_ATTR instruction for faster super() (#103497)Carl Meyer2023-04-241-0/+31
| | | | | This speeds up `super()` (by around 85%, for a simple one-level `super().meth()` microbenchmark) by avoiding allocation of a new single-use `super()` object on each use.
* GH-103488: Use return-offset, not yield-offset. (GH-103502)Mark Shannon2023-04-131-10/+18
| | | | * Use return-offset, not yield-offset, so that instruction pointer is correct when sending to a generator or coroutine.
* GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython ↵Mark Shannon2023-04-121-95/+347
| | | | | | | | | | (GH-103083) * The majority of the monitoring code is in instrumentation.c * The new instrumentation bytecodes are in bytecodes.c * legacy_tracing.c adapts the new API to the old sys.setrace and sys.setprofile APIs
* GH-88691: Shrink the CALL caches (GH-103230)Brandt Bucher2023-04-051-19/+24
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* gh-102192: use PyErr_SetHandledException instead of the legacy ↵Irit Katriel2023-04-011-1/+1
| | | | PyErr_SetExcInfo (#103157)
* Add missing variables to `bytecodes.c` (GH-103153)Brett Cannon2023-03-311-1/+47
| | | The code works without this change, but it does cause C tooling to complain less about undeclared variables.
* GH-89987: Shrink the BINARY_SUBSCR caches (GH-103022)Brandt Bucher2023-03-291-9/+11
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* GH-100982: Break up COMPARE_AND_BRANCH (GH-102801)Brandt Bucher2023-03-231-59/+34
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* gh-102859: Remove JUMP_IF_FALSE_OR_POP and JUMP_IF_TRUE_OR_POP (#102870)Irit Katriel2023-03-221-50/+0
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* GH-101291: Rearrange the size bits in PyLongObject (GH-102464)Mark Shannon2023-03-221-10/+9
| | | | | | | | | | * Eliminate all remaining uses of Py_SIZE and Py_SET_SIZE on PyLongObject, adding asserts. * Change layout of size/sign bits in longobject to support future addition of immortal ints and tagged medium ints. * Add functions to hide some internals of long object, and for setting sign and digit count. * Replace uses of IS_MEDIUM_VALUE macro with _PyLong_IsCompact().
* gh-102598: Remove obsolete optimization from `FORMAT_VALUE` opcode (#102599)Nikita Sobolev2023-03-211-14/+4
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* gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives ↵Irit Katriel2023-03-191-6/+2
| | | | (#102816)
* gh-98831: Use DECREF_INPUTS() more (#102409)Guido van Rossum2023-03-131-49/+31
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* GH-100987: Don't cache references to the names and consts array in ↵Mark Shannon2023-03-131-23/+21
| | | | | | | `_PyEval_EvalFrameDefault`. (#102640) * Rename local variables, names and consts, from the interpeter loop. Will allow non-code objects in frames for better introspection of C builtins and extensions. * Remove unused dummy variables.
* GH-102300: Reuse objects with refcount == 1 in float specialized binary ops. ↵Mark Shannon2023-03-131-12/+3
| | | | (GH-102301)
* GH-90997: Shrink the LOAD_GLOBAL caches (#102569)Brandt Bucher2023-03-111-3/+3
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* gh-100227: Move dict_state.global_version to PyInterpreterState (gh-102338)Eric Snow2023-03-091-2/+2
| | | https://github.com/python/cpython/issues/100227
* gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives ↵Irit Katriel2023-02-281-1/+1
| | | | (in Python/) (#102193)
* gh-102250: Fix double-decref in COMPARE_AND_BRANCH error case (GH-102287)Dennis Sweeney2023-02-271-3/+1
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* GH-100982: Restrict `FOR_ITER_RANGE` to a single instruction to allow ↵Mark Shannon2023-02-221-16/+8
| | | | instrumentation. (GH-101985)
* gh-101907: Stop using `_Py_OPCODE` and `_Py_OPARG` macros (GH-101912)Steve Dower2023-02-201-17/+17
| | | | | | * gh-101907: Removes use of non-standard C++ extension from Include/cpython/code.h * Make cases_generator correct on Windows
* gh-101952: Fix possible segfault in `BUILD_SET` opcode (#101958)Eclips42023-02-161-0/+2
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* GH-87849: Fix refleak in SEND instruction. (GH-101908)Mark Shannon2023-02-151-0/+1
| | | Fix refleak in SEND instruction.
* gh-101799: implement PREP_RERAISE_STAR as an intrinsic function (#101800)Irit Katriel2023-02-141-11/+9
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* GH-87849: Simplify stack effect of SEND and specialize it for generators and ↵Mark Shannon2023-02-131-36/+52
| | | | coroutines. (GH-101788)
* gh-98831: Modernize CALL and family (#101508)Guido van Rossum2023-02-081-282/+250
| | | Includes a slight improvement to `DECREF_INPUTS()`.
* GH-101578: Normalize the current exception (GH-101607)Mark Shannon2023-02-081-3/+1
| | | | | | | | | | * Make sure that the current exception is always normalized. * Remove redundant type and traceback fields for the current exception. * Add new API functions: PyErr_GetRaisedException, PyErr_SetRaisedException * Add new API functions: PyException_GetArgs, PyException_SetArgs
* gh-98831: Modernize CALL_FUNCTION_EX (#101627)Guido van Rossum2023-02-081-16/+7
| | | New generator feature: Move CHECK_EVAL_BREAKER() call to just before DISPATCH().
* gh-98831: Modernize FORMAT_VALUE (#101628)Guido van Rossum2023-02-081-15/+3
| | | Generator update: support balanced parentheses and brackets in conditions and size expressions.
* gh-98831: Finish the UNPACK_SEQUENCE family (#101666)Guido van Rossum2023-02-071-20/+17
| | | New generator feature: Generate useful glue for output arrays, so you can just write values to the output array (no bounds checking). Rewrote UNPACK_SEQUENCE_TWO_TUPLE to use this, and also UNPACK_SEQUENCE_{TUPLE,LIST}.
* gh-101632: Add the new RETURN_CONST opcode (#101633)penguin_wwy2023-02-071-0/+17
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* gh-98831: rewrite UNPACK_EX, UNPACK_SEQUENCE, UNPACK_SEQUENCE_TWO_TUPLE in ↵Irit Katriel2023-02-071-26/+11
| | | | the instruction definition DSL (#101641)
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