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* gh-65210: Add const qualifiers in PyArg_VaParseTupleAndKeywords() (GH-105958)Serhiy Storchaka2023-12-041-8/+9
| | | | | | | | | | | Change the declaration of the keywords parameter in functions PyArg_ParseTupleAndKeywords() and PyArg_VaParseTupleAndKeywords() from `char **` to `char * const *` in C and `const char * const *` in C++. It makes these functions compatible with argument of type `const char * const *`, `const char **` or `char * const *` in C++ and `char * const *` in C without explicit type cast. Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
* bpo-34392: Add sys. _is_interned() (GH-8755)Serhiy Storchaka2023-12-042-1/+53
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* gh-106560: Fix redundant declarations in Python/frozen.c (#112612)Victor Stinner2023-12-031-6/+0
| | | | | | Avoid duplicated declarations of "extern" functions in Python/frozen.c. Compiler warnings seen by building Python with gcc -Wredundant-decls.
* gh-112567: Add _PyTimeFraction C API (#112568)Victor Stinner2023-12-011-65/+85
| | | | | | | | | | | | | | | | | | | | | Use a fraction internally in the _PyTime API to reduce the risk of integer overflow: simplify the fraction using Greatest Common Divisor (GCD). The fraction API is used by time functions: perf_counter(), monotonic() and process_time(). For example, QueryPerformanceFrequency() usually returns 10 MHz on Windows 10 and newer. The fraction SEC_TO_NS / frequency = 1_000_000_000 / 10_000_000 can be simplified to 100 / 1. * Add _PyTimeFraction type. * Add functions: * _PyTimeFraction_Set() * _PyTimeFraction_Mul() * _PyTimeFraction_Resolution() * No longer check "numer * denom <= _PyTime_MAX" in _PyTimeFraction_Set(). _PyTimeFraction_Mul() uses _PyTime_Mul() which handles integer overflow.
* gh-112567: Add _Py_GetTicksPerSecond() function (#112587)Victor Stinner2023-12-012-5/+24
| | | | | | | | | | * Move _PyRuntimeState.time to _posixstate.ticks_per_second and time_module_state.ticks_per_second. * Add time_module_state.clocks_per_second. * Rename _PyTime_GetClockWithInfo() to py_clock(). * Rename _PyTime_GetProcessTimeWithInfo() to py_process_time(). * Add process_time_times() helper function, called by py_process_time(). * os.times() is now always built: no longer rely on HAVE_TIMES.
* gh-112367: Only free perf trampoline arenas at shutdown (#112368)Pablo Galindo Salgado2023-12-012-6/+36
| | | Signed-off-by: Pablo Galindo <pablogsal@gmail.com>
* gh-112519: Make it possible to specify instruction flags for pseudo ↵Irit Katriel2023-11-302-4/+4
| | | | instructions in bytecodes.c (#112520)
* gh-111972: Make Unicode name C APIcapsule initialization thread-safe (#112249)Kirill Podoprigora2023-11-301-9/+3
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* Rename ...Uop... to ...UOp... (uppercase O) for consistency (#112327)Guido van Rossum2023-11-294-22/+22
| | | | * Rename _PyUopExecute to _PyUOpExecute (uppercase O) for consistency * Also rename _PyUopName and _PyUOp_Replacements, and some output strings
* gh-112217: Add check to call result for `do_raise()` where cause is a type. ↵apaz2023-11-271-0/+7
| | | | (#112216)
* gh-111789: Use PyDict_GetItemRef() in Python/_warnings.c (gh-112080)Serhiy Storchaka2023-11-271-4/+4
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* gh-111789: Use PyDict_GetItemRef() in Python/symtable.c (gh-112084)Serhiy Storchaka2023-11-271-8/+4
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* gh-111789: Use PyDict_GetItemRef() in Python/codecs.c (gh-112082)Serhiy Storchaka2023-11-271-5/+4
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* gh-111789: Use PyDict_GetItemRef() in Python/bltinmodule.c (gh-112081)Serhiy Storchaka2023-11-271-6/+3
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* gh-112438: Fix support of format units with the "e" prefix in nested tuples ↵Serhiy Storchaka2023-11-271-1/+1
| | | | in PyArg_Parse (gh-112439)
* gh-99606: Make code generated for an empty f-string identical to that of a ↵Irit Katriel2023-11-261-2/+6
| | | | normal empty string (#112407)
* gh-76785: Return an "excinfo" Object From Interpreter.run() (gh-111573)Eric Snow2023-11-231-125/+323
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* GH-111485: Sort cases in the case generator output (GH-112315)Mark Shannon2023-11-221-4196/+4196
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* gh-111786: Use separate opcode vars for Tier 1 and Tier 2 (#112289)Michael Droettboom2023-11-201-12/+11
| | | | This makes Windows about 3% faster on pyperformance benchmarks.
* gh-112287: Speed up Tier 2 (uop) interpreter a little (#112286)Guido van Rossum2023-11-203-31/+124
| | | | | | | | | | | | | | | | | | | | | | | | | | This makes the Tier 2 interpreter a little faster. I calculated by about 3%, though I hesitate to claim an exact number. This starts by doubling the trace size limit (to 512), making it more likely that loops fit in a trace. The rest of the approach is to only load `oparg` and `operand` in cases that use them. The code generator know when these are used. For `oparg`, it will conditionally emit ``` oparg = CURRENT_OPARG(); ``` at the top of the case block. (The `oparg` variable may be referenced multiple times by the instructions code block, so it must be in a variable.) For `operand`, it will use `CURRENT_OPERAND()` directly instead of referencing the `operand` variable, which no longer exists. (There is only one place where this will be used.)
* gh-111848: Clean up RESERVE() macro (#112274)Guido van Rossum2023-11-201-14/+9
| | | Also avoid compiler warnings about unused 'reserved' variable.
* gh-106529: Make FOR_ITER a viable uop (#112134)Guido van Rossum2023-11-205-4/+60
| | | | | | | | | | This uses the new mechanism whereby certain uops are replaced by others during translation, using the `_PyUop_Replacements` table. We further special-case the `_FOR_ITER_TIER_TWO` uop to update the deoptimization target to point just past the corresponding `END_FOR` opcode. Two tiny code cleanups are also part of this PR.
* gh-111863: Rename `Py_NOGIL` to `Py_GIL_DISABLED` (#111864)Hugo van Kemenade2023-11-203-5/+5
| | | Rename Py_NOGIL to Py_GIL_DISABLED
* gh-112234: Remove the toplevel parameter in converttuple() (GH-112235)Serhiy Storchaka2023-11-181-16/+6
| | | It is and always was 0.
* gh-110319: Assert type_version != 0 before using it (#112226)Guido van Rossum2023-11-182-4/+4
| | | | | | - Ensure that `assert(type_version != 0);` always comes *before* using `type_version` Also: - In cases_generator, rename `-v` to from `--verbose` to `--viable`
* Various small improvements to uop debug output (#112218)Guido van Rossum2023-11-172-13/+20
| | | | | - Show uop name in Error/DEOPT messages - Add target to some messages - Expose uop_name() as _PyUopName()
* gh-106529: Cleanups split off gh-112134 (#112214)Guido van Rossum2023-11-173-1/+22
| | | | | | | - Double max trace size to 256 - Add a dependency on executor_cases.c.h for ceval.o - Mark `_SPECIALIZE_UNPACK_SEQUENCE` as `TIER_ONE_ONLY` - Add debug output back showing the optimized trace - Bunch of cleanups to Tools/cases_generator/
* gh-111956: Add thread-safe one-time initialization. (gh-111960)Sam Gross2023-11-164-901/+941
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* GH-111848: Set the IP when de-optimizing (GH-112065)Mark Shannon2023-11-153-38/+34
| | | | | | | | | | | | * Replace jumps with deopts in tier 2 * Fewer special cases of uop names * Add target field to uop IR * Remove more redundant SET_IP and _CHECK_VALIDITY micro-ops * Extend whitelist of non-escaping API functions.
* GH-111848: Convert remaining jumps to deopts into tier 2 code. (GH-112045)Mark Shannon2023-11-145-69/+92
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* gh-111789: Simplify bytecodes.c by using PyDict_GetItemRef() (GH-111978)Serhiy Storchaka2023-11-143-140/+51
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* gh-111262: Add PyDict_Pop() function (#112028)Victor Stinner2023-11-142-5/+3
| | | | | | | _PyDict_Pop_KnownHash(): remove the default value and the return type becomes an int. Co-authored-by: Stefan Behnel <stefan_ml@behnel.de> Co-authored-by: Antoine Pitrou <pitrou@free.fr>
* gh-111789: Simplify ceval.c by using PyDict_GetItemRef() (GH-111980)Serhiy Storchaka2023-11-141-18/+14
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* gh-111789: Simplify import.c by using PyDict_GetItemRef() (GH-111979)Serhiy Storchaka2023-11-141-18/+17
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* GH-111520: Add back the operand local (GH-111813)Brandt Bucher2023-11-142-27/+23
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* gh-107149: make new opcode util functions private rather than public and ↵Irit Katriel2023-11-142-10/+11
| | | | unstable (#112042)
* gh-111856: Fix os.fstat on windows with FAT32 and exFAT filesystem (GH-112038)AN Long2023-11-131-3/+8
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* gh-106905: avoid incorrect SystemError about recursion depth mismatch (#106906)Markus Mohrhard2023-11-131-0/+14
| | | | | | | | | | * gh-106905: avoid incorrect SystemError about recursion depth mismatch * Update Misc/NEWS.d/next/Core and Builtins/2023-07-20-11-41-16.gh-issue-106905.AyZpuB.rst --------- Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
* gh-111999: Add signatures and improve docstrings for builtins (GH-112000)Serhiy Storchaka2023-11-131-9/+13
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* gh-111933: fix broken link to A.Neumaier article (gh-111937)Sergey B Kirpichev2023-11-121-1/+4
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* Remove dead code left after gh-110721 (#111905)Serhiy Storchaka2023-11-101-37/+0
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* gh-81925: Implement native thread ids for kFreeBSD (#111761)Samuel Thibault2023-11-091-0/+5
| | | | | --------- Co-authored-by: Antoine Pitrou <antoine@python.org>
* gh-111786: Optimize for space for _PyEval_EvalFrameDefault on MSVC for PGO ↵Michael Droettboom2023-11-091-0/+10
| | | | | | | (#111794) In PGO mode, this function caused a compiler error in MSVC. It turns out that optimizing for space only save the day, and is even faster. However, without PGO, this is neither necessary nor slower.
* GH-111843: Tier 2 exponential backoff (GH-111850)Mark Shannon2023-11-093-14/+41
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* GH-109369: Exit tier 2 if executor is invalid (GH-111657)Mark Shannon2023-11-096-5/+34
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* gh-111569: Implement Python critical section API (gh-111571)Sam Gross2023-11-082-0/+110
| | | | | | | | Critical sections are helpers to replace the global interpreter lock with finer grained locking. They provide similar guarantees to the GIL and avoid the deadlock risk that plain locking involves. Critical sections are implicitly ended whenever the GIL would be released. They are resumed when the GIL would be acquired. Nested critical sections behave as if the sections were interleaved.
* GH-111848: Tidy up tier 2 handling of FOR_ITER specialization by using ↵Mark Shannon2023-11-084-113/+33
| | | | DEOPT_IF instead of jumps. (GH-111849)
* gh-111089: Revert PyUnicode_AsUTF8() changes (#111833)Victor Stinner2023-11-074-8/+27
| | | | | | | | | | | | | | | | | | | | | * Revert "gh-111089: Use PyUnicode_AsUTF8() in Argument Clinic (#111585)" This reverts commit d9b606b3d04fc56fb0bcc479d7d6c14562edb5e2. * Revert "gh-111089: Use PyUnicode_AsUTF8() in getargs.c (#111620)" This reverts commit cde1071b2a72e8261ca66053ef61431b7f3a81fd. * Revert "gh-111089: PyUnicode_AsUTF8() now raises on embedded NUL (#111091)" This reverts commit d731579bfb9a497cfb0076cb6b221058a20088fe. * Revert "gh-111089: Add PyUnicode_AsUTF8() to the limited C API (#111121)" This reverts commit d8f32be5b6a736dc2fc9dca3f1bf176c82fc9b44. * Revert "gh-111089: Use PyUnicode_AsUTF8() in sqlite3 (#111122)" This reverts commit 37e4e20eaa8f27ada926d49e5971fecf0477ad26.
* gh-111623: Add Support for Cross-interpreter tuples (gh-111628)Anthony Shaw2023-11-071-0/+98
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* gh-106672: C API: Report indiscriminately ignored errors (GH-106674)Serhiy Storchaka2023-11-071-0/+3
| | | | | Functions which indiscriminately ignore all errors now report them as unraisable errors.
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