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Sam Gross 67fbfb42bd
gh-131586: Avoid refcount contention in some "special" calls (#131588) 
In the free threaded build, the `_PyObject_LookupSpecial()` call can lead to
reference count contention on the returned function object becuase it
doesn't use stackrefs. Refactor some of the callers to use
`_PyObject_MaybeCallSpecialNoArgs`, which uses stackrefs internally.

This fixes the scaling bottleneck in the "lookup_special" microbenchmark
in `ftscalingbench.py`. However, the are still some uses of
`_PyObject_LookupSpecial()` that need to be addressed in future PRs.
2025-03-26 14:38:47 -04:00
..
mimalloc gh-125444: Fix illegal instruction for older Arm architectures (#125574) 2024-10-16 09:13:07 -04:00
pycore_abstract.h
pycore_asdl.h
pycore_ast.h gh-130139: always check ast node type in ast.parse() with ast input (#130140) 2025-02-16 13:32:39 +00:00
pycore_ast_state.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_atexit.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_audit.h gh-125604: Move _Py_AuditHookEntry, etc. Out of pycore_runtime.h (gh-125605) 2024-10-18 09:26:08 -06:00
pycore_backoff.h gh-131238: Move pycore_obmalloc.h include to pycore_runtime_structs.h (#131482) 2025-03-19 23:32:30 +00:00
pycore_bitutils.h
pycore_blocks_output_buffer.h
pycore_brc.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_bytes_methods.h
pycore_bytesobject.h gh-121489: Export private _PyBytes_Join() again (#122267) 2024-07-25 17:31:30 +02:00
pycore_c_array.h gh-130080: move _Py_EnsureArrayLargeEnough to a separate header so it can be used outside of the compiler (#130930) 2025-03-13 16:02:58 +00:00
pycore_call.h gh-131238: Remove pycore_runtime.h from pycore_pystate.h (#131356) 2025-03-19 17:33:24 +01:00
pycore_capsule.h
pycore_cell.h gh-123358: Use _PyStackRef in LOAD_DEREF (gh-130064) 2025-03-26 12:08:20 -04:00
pycore_ceval.h gh-131238: Remove more includes from pycore_interp.h (#131480) 2025-03-19 23:01:32 +01:00
pycore_ceval_state.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_code.h gh-131238: Remove includes from pycore_interp.h (#131495) 2025-03-20 11:35:23 +00:00
pycore_codecs.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_compile.h gh-130881: Handle conditionally defined annotations (#130935) 2025-03-26 03:48:19 +00:00
pycore_complexobject.h
pycore_condvar.h gh-131082: Add missing guards for WIN32_LEAN_AND_MEAN (#131044) 2025-03-11 12:33:01 +01:00
pycore_context.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_critical_section.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_crossinterp.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_crossinterp_data_registry.h gh-76785: Improved Subinterpreters Compatibility with 3.12 (2/2) (gh-126707) 2024-11-12 10:41:51 -07:00
pycore_debug_offsets.h gh-130039: Tailcall for windows builds (GH-130040) 2025-03-11 10:52:56 +08:00
pycore_descrobject.h
pycore_dict.h GH-131238: More refactoring of core header files (GH-131351) 2025-03-17 14:41:05 +00:00
pycore_dict_state.h gh-124296: Remove private dictionary version tag (PEP 699) (#124472) 2024-10-01 12:39:56 -04:00
pycore_dtoa.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_emscripten_signal.h
pycore_emscripten_trampoline.h gh-131238: Cleanup pycore_runtime.h includes (#131486) 2025-03-20 00:47:30 +00:00
pycore_exceptions.h gh-129668: Fix thread-safety of MemoryError freelist in free threaded build (gh-129704) 2025-02-06 12:38:12 -05:00
pycore_faulthandler.h
pycore_fileutils.h gh-131238: Use pycore_interp_structs.h header (#131481) 2025-03-19 23:13:25 +00:00
pycore_fileutils_windows.h
pycore_floatobject.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_flowgraph.h
pycore_format.h
pycore_frame.h gh-130931: Add pycore_interpframe.h internal header (#131249) 2025-03-19 18:17:44 +01:00
pycore_freelist.h gh-131238: Remove includes from pycore_interp.h (#131495) 2025-03-20 11:35:23 +00:00
pycore_freelist_state.h gh-126703: Add freelists for list and tuple iterators (GH-128592) 2025-01-29 09:15:24 +00:00
pycore_function.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_gc.h gh-131238: Move _Py_VISIT_STACKREF() to pycore_stackref.h (#131560) 2025-03-21 23:24:14 +01:00
pycore_genobject.h gh-131238: Move _Py_VISIT_STACKREF() to pycore_stackref.h (#131560) 2025-03-21 23:24:14 +01:00
pycore_getopt.h
pycore_gil.h
pycore_global_objects.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_global_objects_fini_generated.h gh-131586: Avoid refcount contention in some "special" calls (#131588) 2025-03-26 14:38:47 -04:00
pycore_global_strings.h gh-131586: Avoid refcount contention in some "special" calls (#131588) 2025-03-26 14:38:47 -04:00
pycore_hamt.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_hashtable.h
pycore_import.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_importdl.h gh-122907: Fix Builds Without HAVE_DYNAMIC_LOADING Set (gh-122952) 2024-08-13 14:44:57 -06:00
pycore_index_pool.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_initconfig.h gh-130931: Add pycore_typedefs.h internal header (#131396) 2025-03-19 15:23:32 +01:00
pycore_instruction_sequence.h gh-121404: split compile.c into compile.c and codegen.c (#123651) 2024-09-09 18:21:51 +01:00
pycore_instruments.h gh-130931: Add pycore_typedefs.h internal header (#131396) 2025-03-19 15:23:32 +01:00
pycore_interp.h gh-131238: Remove includes from pycore_interp.h (#131495) 2025-03-20 11:35:23 +00:00
pycore_interp_structs.h gh-131238: Move pycore_obmalloc.h include to pycore_runtime_structs.h (#131482) 2025-03-19 23:32:30 +00:00
pycore_interpframe.h gh-128421: Avoid TSAN warnings in sys._current_frames() (gh-131548) 2025-03-24 09:49:39 -04:00
pycore_interpframe_structs.h gh-131238: Add pycore_interpframe_structs.h header (#131553) 2025-03-21 17:19:47 +00:00
pycore_intrinsics.h
pycore_jit.h GH-131498: Remove conditional stack effects (GH-131499) 2025-03-20 15:39:38 +00:00
pycore_list.h gh-115999: Add free-threaded specialization for FOR_ITER (#128798) 2025-03-12 16:21:46 +01:00
pycore_llist.h
pycore_lock.h gh-128002: use per threads tasks linked list in asyncio (#128869) 2025-02-06 19:51:07 +01:00
pycore_long.h gh-131238: Cleanup pycore_runtime.h includes (#131486) 2025-03-20 00:47:30 +00:00
pycore_magic_number.h GH-128534: Fix behavior of branch monitoring for async for (GH-130847) 2025-03-07 14:30:31 +00:00
pycore_memoryobject.h
pycore_mimalloc.h gh-122584: Import mimalloc headers in a C++ context (#122587) 2024-08-15 09:01:01 -04:00
pycore_modsupport.h gh-112136: Remove unused #include "pycore_lock.h" (#127093) 2024-11-21 13:50:11 +01:00
pycore_moduleobject.h gh-123930: Better error for "from imports" when script shadows module (#123929) 2024-10-24 12:11:12 -07:00
pycore_namespace.h
pycore_object.h gh-131586: Avoid refcount contention in some "special" calls (#131588) 2025-03-26 14:38:47 -04:00
pycore_object_alloc.h
pycore_object_deferred.h gh-117139: Convert the evaluation stack to stack refs (#118450) 2024-06-27 03:10:43 +08:00
pycore_object_stack.h gh-125859: Fix crash when gc.get_objects is called during GC (#125882) 2024-10-24 09:33:11 -04:00
pycore_object_state.h gh-125604: Move _Py_AuditHookEntry, etc. Out of pycore_runtime.h (gh-125605) 2024-10-18 09:26:08 -06:00
pycore_obmalloc.h gh-92953: Improve nextpool/prevpool comment. (gh-125545) 2024-10-15 11:47:20 -07:00
pycore_obmalloc_init.h
pycore_opcode_metadata.h gh-123358: Use _PyStackRef in LOAD_DEREF (gh-130064) 2025-03-26 12:08:20 -04:00
pycore_opcode_utils.h GH-122548: Implement branch taken and not taken events for sys.monitoring (GH-122564) 2024-12-19 16:59:51 +00:00
pycore_optimizer.h GH-131331: Rename "not" to "invert" (GH-131334) 2025-03-20 16:59:41 -07:00
pycore_parking_lot.h
pycore_parser.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_pathconfig.h
pycore_pyarena.h
pycore_pyatomic_ft_wrappers.h gh-117657: TSAN Fix races in PyMember_Get and PyMember_Set for C extensions (GH-123211) 2024-12-03 09:41:53 -05:00
pycore_pybuffer.h
pycore_pyerrors.h gh-127787: allow retrieving the clipped slice length in _PyUnicodeError_GetParams (GH-128980) 2025-01-21 11:45:53 +01:00
pycore_pyhash.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_pylifecycle.h gh-131238: Cleanup pycore_runtime.h includes (#131486) 2025-03-20 00:47:30 +00:00
pycore_pymath.h gh-120026: soft deprecate Py_HUGE_VAL macro (#120027) 2024-11-01 22:04:31 +00:00
pycore_pymem.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_pymem_init.h
pycore_pystate.h gh-131238: Remove pycore_runtime.h from pycore_pystate.h (#131356) 2025-03-19 17:33:24 +01:00
pycore_pystats.h
pycore_pythonrun.h
pycore_pythread.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_qsbr.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00
pycore_range.h
pycore_runtime.h gh-131238: Use pycore_interp_structs.h header (#131481) 2025-03-19 23:13:25 +00:00
pycore_runtime_init.h gh-131238: Remove more includes from pycore_interp.h (#131480) 2025-03-19 23:01:32 +01:00
pycore_runtime_init_generated.h gh-131586: Avoid refcount contention in some "special" calls (#131588) 2025-03-26 14:38:47 -04:00
pycore_runtime_structs.h gh-131238: Add pycore_interpframe_structs.h header (#131553) 2025-03-21 17:19:47 +00:00
pycore_semaphore.h gh-131082: Add missing guards for WIN32_LEAN_AND_MEAN (#131044) 2025-03-11 12:33:01 +01:00
pycore_setobject.h gh-130312: SET_ADD should not lock (#130136) 2025-03-21 15:58:32 -07:00
pycore_signal.h
pycore_sliceobject.h
pycore_stackref.h gh-131586: Avoid refcount contention in some "special" calls (#131588) 2025-03-26 14:38:47 -04:00
pycore_stats.h GH-131238: More refactoring of core header files (GH-131351) 2025-03-17 14:41:05 +00:00
pycore_strhex.h
pycore_structs.h gh-131586: Avoid refcount contention in some "special" calls (#131588) 2025-03-26 14:38:47 -04:00
pycore_structseq.h
pycore_symtable.h gh-130881: Handle conditionally defined annotations (#130935) 2025-03-26 03:48:19 +00:00
pycore_sysmodule.h gh-130163: Fix crashes related to PySys_GetObject() (GH-130503) 2025-02-25 23:04:27 +02:00
pycore_time.h gh-131238: Use pycore_interp_structs.h header (#131481) 2025-03-19 23:13:25 +00:00
pycore_token.h
pycore_traceback.h gh-130790: Remove references about unicode's readiness from comments (#130801) 2025-03-03 19:18:09 +00:00
pycore_tracemalloc.h gh-129185: Use PyMutex in tracemalloc (#129246) 2025-01-24 11:25:24 +01:00
pycore_tstate.h gh-131586: Avoid refcount contention in some "special" calls (#131588) 2025-03-26 14:38:47 -04:00
pycore_tuple.h gh-131238: Remove pycore_runtime.h from pycore_pystate.h (#131356) 2025-03-19 17:33:24 +01:00
pycore_typedefs.h gh-130931: Add pycore_typedefs.h internal header (#131396) 2025-03-19 15:23:32 +01:00
pycore_typeobject.h gh-131238: Remove pycore_object_deferred.h from pycore_object.h (#131549) 2025-03-21 16:44:10 +00:00
pycore_typevarobject.h gh-119180: Add evaluate functions for type params and type aliases (#122212) 2024-07-27 17:24:10 +00:00
pycore_ucnhash.h
pycore_unicodeobject.h gh-131238: Cleanup pycore_runtime.h includes (#131486) 2025-03-20 00:47:30 +00:00
pycore_unicodeobject_generated.h gh-131586: Avoid refcount contention in some "special" calls (#131588) 2025-03-26 14:38:47 -04:00
pycore_unionobject.h gh-105499: Merge typing.Union and types.UnionType (#105511) 2025-03-04 11:44:19 -08:00
pycore_uniqueid.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_uop_ids.h GH-130415: Optimize constant comparison in JIT builds (GH-131489) 2025-03-21 11:23:12 -07:00
pycore_uop_metadata.h gh-123358: Use _PyStackRef in LOAD_DEREF (gh-130064) 2025-03-26 12:08:20 -04:00
pycore_warnings.h GH-131238: Core header refactor (GH-131250) 2025-03-17 09:19:04 +00:00
pycore_weakref.h gh-131238: Remove pycore_lock.h includes (#131483) 2025-03-19 23:46:25 +00:00