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* gh-59956: Clarify Runtime State Status Expectations (gh-101308)Eric Snow2023-01-303-149/+387
| | | | | | | | | | | | | A PyThreadState can be in one of many states in its lifecycle, represented by some status value. Those statuses haven't been particularly clear, so we're addressing that here. Specifically: * made the distinct lifecycle statuses clear on PyThreadState * identified expectations of how various lifecycle-related functions relate to status * noted the various places where those expectations don't match the actual behavior At some point we'll need to address the mismatches. (This change also includes some cleanup.) https://github.com/python/cpython/issues/59956
* GH-101291: Refactor the `PyLongObject` struct into object header and ↵Mark Shannon2023-01-305-22/+22
| | | | PyLongValue struct. (GH-101292)
* gh-98831: Support conditional effects; use for LOAD_ATTR (#101333)Guido van Rossum2023-01-303-51/+35
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* gh-39615: fix warning on return type mismatch (#101407)Irit Katriel2023-01-301-1/+1
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* gh-39615: Add warnings.warn() skip_file_prefixes support (#100840)Gregory P. Smith2023-01-282-34/+143
| | | | | `warnings.warn()` gains the ability to skip stack frames based on code filename prefix rather than only a numeric `stacklevel=` via a new `skip_file_prefixes=` keyword argument.
* Fix typos in pystate.c file (#101348)Виталий Дмитриев2023-01-261-5/+5
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* gh-98831: rewrite RAISE_VARARGS in the instruction definition DSL (#101306)Irit Katriel2023-01-253-16/+16
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* gh-98831: add variable stack effect support to cases generator (#101309)Irit Katriel2023-01-252-176/+864
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* Fix some comments in ceval.c and fix lltrace output (#101297)Guido van Rossum2023-01-241-6/+4
| | | | | The comment at the top was rather outdated. :-) Also added a note about the dangers of dump_stack().
* gh-98831: rewrite pattern matching opcodes in the instruction definition DSL ↵Irit Katriel2023-01-243-69/+46
| | | | (#101287)
* GH-100762: Don't call `gen.throw()` in `gen.close()`, unless necessary. ↵Mark Shannon2023-01-244-6/+4
| | | | | | (GH-101013) * Store exception stack depth in YIELD_VALUE's oparg and use it avoid expensive gen.throw() in gen.close() where possible.
* gh-98831: rewrite CHECK_EG_MATCH opcode in the instruction definition DSL ↵Irit Katriel2023-01-244-60/+29
| | | | (#101269)
* gh-59956: Allow the "Trashcan" Mechanism to Work Without a Thread State ↵Eric Snow2023-01-231-0/+16
| | | | | | | | | | | | (gh-101209) We've factored out a struct from the two PyThreadState fields. This accomplishes two things: * make it clear that the trashcan-related code doesn't need any other parts of PyThreadState * allows us to use the trashcan mechanism even when there isn't a "current" thread state We still expect the caller to hold the GIL. https://github.com/python/cpython/issues/59956
* Fix typo in comment in compile.c (#101194)Ikko Eltociear Ashimine2023-01-201-1/+1
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* gh-101181: Fix `unused-variable` warning in `pystate.c` (#101188)Nikita Sobolev2023-01-201-0/+3
| | | Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
* gh-59956: Fix Function Groupings in pystate.c (gh-101172)Eric Snow2023-01-201-237/+352
| | | | | This is a follow-up to gh-101161. The objective is to make it easier to read Python/pystate.c by grouping the functions there in a consistent way. This exclusively involves moving code around and adding various kinds of comments. https://github.com/python/cpython/issues/59956
* gh-101169: reduce the implementation of except* by one bytecode instruction ↵Irit Katriel2023-01-191-16/+11
| | | | (#101170)
* gh-59956: Clarify GILState-related Code (gh-101161)Eric Snow2023-01-193-219/+344
| | | | | | | | | | The objective of this change is to help make the GILState-related code easier to understand. This mostly involves moving code around and some semantically equivalent refactors. However, there are a also a small number of slight changes in structure and behavior: * tstate_current is moved out of _PyRuntimeState.gilstate * autoTSSkey is moved out of _PyRuntimeState.gilstate * autoTSSkey is initialized earlier * autoTSSkey is re-initialized (after fork) earlier https://github.com/python/cpython/issues/59956
* gh-100712: make it possible to disable specialization (for debugging) (#100713)Irit Katriel2023-01-193-0/+60
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* GH-98831: Move assorted macros from ceval.h to a new header (#101116)Guido van Rossum2023-01-183-383/+358
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* GH-98831: Implement array support in cases generator (#100912)Guido van Rossum2023-01-173-121/+95
| | | | | | | | You can now write things like this: ``` inst(BUILD_STRING, (pieces[oparg] -- str)) { ... } inst(LIST_APPEND, (list, unused[oparg-1], v -- list, unused[oparg-1])) { ... } ``` Note that array output effects are only partially supported (they must be named `unused` or correspond to an input effect).
* GH-100982: Add `COMPARE_AND_BRANCH` instruction (GH-100983)Mark Shannon2023-01-166-202/+199
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* GH-100892: consolidate `HEAD_LOCK/HEAD_UNLOCK` macros (#100953)Kumar Aditya2023-01-152-9/+0
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* GH-98831: Identify instructions that don't use oparg (#100957)Guido van Rossum2023-01-141-57/+57
| | | | | | | For these the instr_format field uses IX instead of IB. Register instructions use IX, IB, IBBX, IBBB, etc. Also: Include the closing '}' in Block.tokens, for completeness
* gh-86682: Adds sys._getframemodulename as an alternative to using _getframe ↵Steve Dower2023-01-132-1/+108
| | | | | (GH-99520) Also updates calls in collections, doctest, enum, and typing modules to use _getframemodulename first when available.
* GH-100923: Embed jump mask in `COMPARE_OP` oparg (GH-100924)Mark Shannon2023-01-115-67/+68
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* GH-98831: Refactor instr format code and change to enum (#100895)Guido van Rossum2023-01-091-168/+169
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* GH-100126: Skip incomplete frames in more places (GH-100613)Brandt Bucher2023-01-094-22/+8
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* gh-87447: Fix walrus comprehension rebind checking (#100581)Nikita Sobolev2023-01-081-1/+2
| | | | Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com> Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
* Update copyright years to 2023. (gh-100848)Benjamin Peterson2023-01-081-1/+1
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* GH-90829: Fix empty iterable error message in min/max (#31181)Nnarol2023-01-081-1/+1
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* gh-100776: Fix misleading default value in help(input) (#100788)Shantanu2023-01-082-4/+4
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* gh-88696: clean up dead argument to compiler_make_closure (GH-100806)Carl Meyer2023-01-071-23/+7
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* gh-100758: Refactor initialisation of frame headers into a single function ↵Irit Katriel2023-01-063-44/+11
| | | | (_PyFrame_Initialize) (GH-100759)
* GH-99005: More intrinsics (GH-100774)Mark Shannon2023-01-066-88/+50
| | | * Remove UNARY_POSITIVE, LIST_TO_TUPLE and ASYNC_GEN_WRAP, replacing them with intrinsics.
* gh-98831: Regenerate Python/opcode_metadata.h (GH-100778)Zachary Ware2023-01-051-4/+1
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* GH-98831: Update generate_cases.py: register inst, opcode_metadata.h (#100735)Guido van Rossum2023-01-053-1/+216
| | | | | | | | (These aren't used yet, but may be coming soon, and it's easier to keep this tool the same between branches.) Added a sanity check for all this to compile.c. Co-authored-by: Irit Katriel <iritkatriel@yahoo.com>
* GH-99005: Add `CALL_INTRINSIC_1` instruction (GH-100771)Mark Shannon2023-01-056-276/+233
| | | | | | | | * Remove PRINT_EXPR instruction * Remove STOPITERATION_ERROR instruction * Remove IMPORT_STAR instruction
* GH-100288: Remove LOAD_ATTR_METHOD_WITH_DICT instruction. (GH-100753)Mark Shannon2023-01-054-67/+12
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* gh-100747: some compiler macros use c instead of C to access the compiler ↵Irit Katriel2023-01-041-7/+7
| | | | (#100748)
* GH-100719: Remove the `co_nplaincellvars` field from code objects. (GH-100721)Mark Shannon2023-01-044-4/+4
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* gh-100146: Steal references from stack when building a list (#100147)L. A. F. Pereira2023-01-032-10/+4
| | | | | | | | | | When executing the BUILD_LIST opcode, steal the references from the stack, in a manner similar to the BUILD_TUPLE opcode. Implement this by offloading the logic to a new private API, _PyList_FromArraySteal(), that works similarly to _PyTuple_FromArraySteal(). This way, instead of performing multiple stack pointer adjustments while the list is being initialized, the stack is adjusted only once and a fast memory copy operation is performed in one fell swoop.
* gh-95778: add doc missing in some places (GH-100627)Éric2022-12-301-0/+2
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* gh-100577: Replace `assert(0)` with `Py_UNREACHABLE` in `symtable.c` (#100579)Nikita Sobolev2022-12-281-1/+1
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* GH-98831: Modernize a ton of simpler instructions (#100545)Guido van Rossum2022-12-282-342/+230
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * load_const and load_fast aren't families for now * Don't decref unmoved names * Modernize GET_ANEXT * Modernize GET_AWAITABLE * Modernize ASYNC_GEN_WRAP * Modernize YIELD_VALUE * Modernize POP_EXCEPT (in more than one way) * Modernize PREP_RERAISE_STAR * Modernize LOAD_ASSERTION_ERROR * Modernize LOAD_BUILD_CLASS * Modernize STORE_NAME * Modernize LOAD_NAME * Modernize LOAD_CLASSDEREF * Modernize LOAD_DEREF * Modernize STORE_DEREF * Modernize COPY_FREE_VARS (mark it as done) * Modernize LIST_TO_TUPLE * Modernize LIST_EXTEND * Modernize SET_UPDATE * Modernize SETUP_ANNOTATIONS * Modernize DICT_UPDATE * Modernize DICT_MERGE * Modernize MAP_ADD * Modernize IS_OP * Modernize CONTAINS_OP * Modernize CHECK_EXC_MATCH * Modernize IMPORT_NAME * Modernize IMPORT_STAR * Modernize IMPORT_FROM * Modernize JUMP_FORWARD (mark it as done) * Modernize JUMP_BACKWARD (mark it as done)
* gh-100357: Convert several functions in `bltinsmodule` to AC (#100358)Nikita Sobolev2022-12-242-99/+303
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* gh-99947: Ensure unreported errors are chained for SystemError during import ↵Sebastian Berg2022-12-231-2/+1
| | | | (GH-99946)
* GH-100425: Improve accuracy of builtin sum() for float inputs (GH-100426)Raymond Hettinger2022-12-231-1/+20
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* Revert "gh-100288: Specialise LOAD_ATTR_METHOD for managed dictionaries ↵Ken Jin2022-12-234-70/+15
| | | | | (GH-100289)" (#100468) This reverts commit c3c7848a48b74a321632202e4bdcf2f465fb1cc6.
* gh-100288: Specialise LOAD_ATTR_METHOD for managed dictionaries (GH-100289)Ken Jin2022-12-234-15/+70
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