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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 Shannon2023-07-281-94/+99
| | | | that cannot be disabled. (GH-107337) (GH-107351)
* [3.12] GH-106897: Add `RERAISE` event to `sys.monitoring`. (GH-107291) ↵Mark Shannon2023-07-281-380/+387
| | | | | | (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)2023-05-301-220/+222
| | | | | | | | (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 Shannon2023-05-181-253/+253
| | | Move eval-breaker to the front of the interpreter state.
* GH-103906: Remove immortal refcounting in the interpreter (GH-103909)Brandt Bucher2023-05-161-477/+459
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* gh-103865: add monitoring support to LOAD_SUPER_ATTR (#103866)Carl Meyer2023-05-161-228/+262
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* gh-103763: Implement PEP 695 (#103764)Jelle Zijlstra2023-05-161-438/+546
| | | | | | | | | | | | | | 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 Bucher2023-05-121-401/+405
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* GH-103082: Filter LINE events in VM, to simplify tool implementation. ↵Mark Shannon2023-05-121-44/+20
| | | | | | | | (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 Zijlstra2023-05-121-113/+115
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* gh-87729: improve hit rate of LOAD_SUPER_ATTR specialization (#104270)Carl Meyer2023-05-111-237/+270
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* gh-87849: fix SEND specialization family definition (GH-104268)Carl Meyer2023-05-111-173/+174
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* gh-97933: (PEP 709) inline list/dict/set comprehensions (#101441)Carl Meyer2023-05-091-475/+487
| | | | 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 Jin2023-04-301-43/+62
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* gh-87729: specialize LOAD_SUPER_ATTR_METHOD (#103809)Carl Meyer2023-04-251-252/+278
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* gh-87729: add LOAD_SUPER_ATTR instruction for faster super() (#103497)Carl Meyer2023-04-241-352/+398
| | | | | 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 Shannon2023-04-131-401/+409
| | | | * 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 Shannon2023-04-121-540/+854
| | | | | | | | | | (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 Bucher2023-04-051-71/+75
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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 Cannon2023-03-311-223/+223
| | | 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 Bucher2023-03-291-191/+191
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* GH-100982: Break up COMPARE_AND_BRANCH (GH-102801)Brandt Bucher2023-03-231-240/+213
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* gh-102859: Remove JUMP_IF_FALSE_OR_POP and JUMP_IF_TRUE_OR_POP (#102870)Irit Katriel2023-03-221-176/+114
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* GH-101291: Rearrange the size bits in PyLongObject (GH-102464)Mark Shannon2023-03-221-387/+386
| | | | | | | | | | * 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 Sobolev2023-03-211-30/+17
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* gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives ↵Irit Katriel2023-03-191-321/+317
| | | | (#102816)
* gh-102654: Insert #line directives in generated_cases.c.h (#102669)Guido van Rossum2023-03-151-0/+456
| | | | | | | | | This behavior is optional, because in some extreme cases it may just make debugging harder. The tool defaults it to off, but it is on in Makefile.pre.in. Also note that this makes diffs to generated_cases.c.h noisier, since whenever you insert or delete a line in bytecodes.c, all subsequent #line directives will change.
* gh-98831: Use DECREF_INPUTS() more (#102409)Guido van Rossum2023-03-131-8/+7
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* GH-100987: Don't cache references to the names and consts array in ↵Mark Shannon2023-03-131-23/+23
| | | | | | | `_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 Bucher2023-03-111-7/+7
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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-102021 : Allow multiple input files for interpreter loop generator (#102022)Jacob Bower2023-03-041-1/+2
| | | The input files no longer use `-i`.
* GH-102305: Expand some macros in generated_cases.c.h (#102309)Guido van Rossum2023-02-281-425/+420
| | | | * Emit straight stack_pointer[-i] instead of PEEK(i), POKE(i, ...) * Expand JUMPBY() and NEXTOPARG(), and fix a perf bug
* 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 Shannon2023-02-221-11/+11
| | | | 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 Katriel2023-02-141-16/+14
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* GH-87849: Simplify stack effect of SEND and specialize it for generators and ↵Mark Shannon2023-02-131-37/+52
| | | | coroutines. (GH-101788)
* gh-98831: Modernize CALL and family (#101508)Guido van Rossum2023-02-081-239/+321
| | | 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 Rossum2023-02-081-14/+13
| | | New generator feature: Move CHECK_EVAL_BREAKER() call to just before DISPATCH().
* gh-98831: Modernize FORMAT_VALUE (#101628)Guido van Rossum2023-02-081-13/+7
| | | Generator update: support balanced parentheses and brackets in conditions and size expressions.
* gh-98831: Finish the UNPACK_SEQUENCE family (#101666)Guido van Rossum2023-02-071-17/+21
| | | 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}.
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