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Guido van Rossum 570a82d46a
gh-117045: Add code object to function version cache (#117028) 
Changes to the function version cache:

- In addition to the function object, also store the code object,
  and allow the latter to be retrieved even if the function has been evicted.
- Stop assigning new function versions after a critical attribute (e.g. `__code__`)
  has been modified; the version is permanently reset to zero in this case.
- Changes to `__annotations__` are no longer considered critical. (This fixes gh-109998.)

Changes to the Tier 2 optimization machinery:

- If we cannot map a function version to a function, but it is still mapped to a code object,
  we continue projecting the trace.
  The operand of the `_PUSH_FRAME` and `_POP_FRAME` opcodes can be either NULL,
  a function object, or a code object with the lowest bit set.

This allows us to trace through code that calls an ephemeral function,
i.e., a function that may not be alive when we are constructing the executor,
e.g. a generator expression or certain nested functions.
We will lose globals removal inside such functions,
but we can still do other peephole operations
(and even possibly [call inlining](https://github.com/python/cpython/pull/116290),
if we decide to do it), which only need the code object.
As before, if we cannot retrieve the code object from the cache, we stop projecting.
 		2024-03-21 12:37:41 -07:00
..
mimalloc gh-115103: Delay reuse of mimalloc pages that store PyObjects (#115435) 2024-03-06 09:42:11 -05:00
pycore_abstract.h gh-106320: Remove private AC converter functions (#108505) 2023-08-26 04:05:17 +02:00
pycore_asdl.h gh-87347: Add parenthesis around macro arguments (#93915) 2022-06-20 16:04:52 +02:00
pycore_ast.h gh-108216: Cleanup #include in internal header files (#108228) 2023-08-21 18:05:59 +00:00
pycore_ast_state.h gh-106905: Use separate structs to track recursion depth in each PyAST_mod2obj call. (GH-113035) 2023-12-25 19:36:59 +02:00
pycore_atexit.h gh-111924: Use PyMutex for Runtime-global Locks. (gh-112207) 2023-12-07 12:33:40 -07:00
pycore_bitutils.h gh-108216: Cleanup #include in internal header files (#108228) 2023-08-21 18:05:59 +00:00
pycore_blocks_output_buffer.h gh-108220: Internal header files require Py_BUILD_CORE to be defined (#108221) 2023-08-21 19:15:52 +02:00
pycore_brc.h gh-110481: Implement inter-thread queue for biased reference counting (#114824) 2024-02-09 17:08:32 -05:00
pycore_bytes_methods.h
…
pycore_bytesobject.h gh-107211: No longer export internal functions (5) (#108423) 2023-08-24 16:06:53 +00:00
pycore_call.h gh-112026: Restore removed private C API (#112115) 2023-11-15 16:38:31 +00:00
pycore_capsule.h gh-108240: Add pycore_capsule.h internal header file (#108596) 2023-08-29 01:20:02 +00:00
pycore_ceval.h GH-116422: Modify a few uops so that they can be supported by tier 2 with hot/cold splitting (GH-116832) 2024-03-15 10:48:00 +00:00
pycore_ceval_state.h gh-112175: Add `eval_breaker` to `PyThreadState` (#115194) 2024-02-20 09:57:48 -05:00
pycore_code.h gh-116996: Add pystats about _Py_uop_analyse_and_optimize (GH-116997) 2024-03-22 01:27:46 +08:00
pycore_codecs.h gh-108220: Internal header files require Py_BUILD_CORE to be defined (#108221) 2023-08-21 19:15:52 +02:00
pycore_compile.h chore: fix typos (#116345) 2024-03-05 09:05:52 -07:00
pycore_complexobject.h gh-112026: Restore removed private C API (#112115) 2023-11-15 16:38:31 +00:00
pycore_condvar.h gh-104530: Enable native Win32 condition variables by default (GH-104531) 2024-02-02 13:50:51 +00:00
pycore_context.h gh-111968: Refactor _PyXXX_Fini to integrate with _PyObject_ClearFreeLists (gh-114899) 2024-02-10 00:57:04 +00:00
pycore_critical_section.h gh-113743: Make the MRO cache thread-safe in free-threaded builds (#113930) 2024-02-15 10:54:57 -08:00
pycore_crossinterp.h gh-76785: Improved Subinterpreters Compatibility with 3.12 (gh-115424) 2024-02-13 14:56:49 -07:00
pycore_descrobject.h gh-106320: Move _PyMethodWrapper_Type to internal C API (#107064) 2023-07-22 20:57:59 +00:00
pycore_dict.h Fix code comment regarding DK_ENTRIES (GH-113960) 2024-03-12 15:05:30 +01:00
pycore_dict_state.h GH-113710: Add a "globals to constants" pass (GH-114592) 2024-02-02 12:14:34 +00:00
pycore_dtoa.h gh-111962: Make dtoa thread-safe in `--disable-gil` builds. (#112049) 2023-12-07 13:47:55 +00:00
pycore_emscripten_signal.h GH-108614: Unbreak emscripten build (GH-109132) 2023-09-08 17:54:45 +01:00
pycore_emscripten_trampoline.h gh-106213: Make Emscripten trampolines work with JSPI (GH-106219) 2023-09-15 15:04:21 -07:00
pycore_exceptions.h
…
pycore_faulthandler.h gh-108216: Cleanup #include in internal header files (#108228) 2023-08-21 18:05:59 +00:00
pycore_fileutils.h gh-112567: Add _Py_GetTicksPerSecond() function (#112587) 2023-12-01 17:05:56 +01:00
pycore_fileutils_windows.h gh-108220: Internal header files require Py_BUILD_CORE to be defined (#108221) 2023-08-21 19:15:52 +02:00
pycore_floatobject.h GH-115802: JIT "small" code for Windows (GH-115964) 2024-02-29 08:11:28 -08:00
pycore_flowgraph.h gh-106149: move CFG and basicblock definitions into flowgraph.c, use them as opaque types in compile.c (#107639) 2023-08-10 13:03:47 +01:00
pycore_format.h gh-104018: remove unused format "z" handling in string formatfloat() (#104107) 2023-05-07 10:11:42 +05:30
pycore_frame.h gh-117045: Add code object to function version cache (#117028) 2024-03-21 12:37:41 -07:00
pycore_freelist.h gh-111968: Split _Py_async_gen_asend_freelist out of _Py_async_gen_fr… (gh-115546) 2024-02-17 10:03:10 +09:00
pycore_function.h gh-117045: Add code object to function version cache (#117028) 2024-03-21 12:37:41 -07:00
pycore_gc.h GH-108362: Incremental Cycle GC (GH-116206) 2024-03-20 08:54:42 +00:00
pycore_genobject.h GH-115802: JIT "small" code for Windows (GH-115964) 2024-02-29 08:11:28 -08:00
pycore_getopt.h
…
pycore_gil.h gh-116167: Allow disabling the GIL with `PYTHON_GIL=0` or `-X gil=0` (#116338) 2024-03-11 11:02:58 -04:00
pycore_global_objects.h gh-108216: Cleanup #include in internal header files (#108228) 2023-08-21 18:05:59 +00:00
pycore_global_objects_fini_generated.h gh-85283: Convert grp extension to the limited C API (#116611) 2024-03-12 00:46:53 +00:00
pycore_global_strings.h gh-85283: Convert grp extension to the limited C API (#116611) 2024-03-12 00:46:53 +00:00
pycore_hamt.h gh-81057: Move contextvars-related Globals to _PyRuntimeState (gh-99400) 2022-11-16 09:54:28 -07:00
pycore_hashtable.h gh-107211: No longer export internal functions (5) (#108423) 2023-08-24 16:06:53 +00:00
pycore_identifier.h gh-112026: Restore removed private C API (#112115) 2023-11-15 16:38:31 +00:00
pycore_import.h gh-110850: Cleanup pycore_time.h includes (#115724) 2024-02-20 16:50:43 +00:00
pycore_importdl.h gh-111863: Rename `Py_NOGIL` to `Py_GIL_DISABLED` (#111864) 2023-11-20 15:52:00 +02:00
pycore_initconfig.h gh-116167: Allow disabling the GIL with `PYTHON_GIL=0` or `-X gil=0` (#116338) 2024-03-11 11:02:58 -04:00
pycore_instruments.h chore: fix typos (#116345) 2024-03-05 09:05:52 -07:00
pycore_interp.h gh-76785: Drop PyInterpreterID_Type (gh-117101) 2024-03-21 17:15:02 +00:00
pycore_intrinsics.h GH-115802: JIT "small" code for Windows (GH-115964) 2024-02-29 08:11:28 -08:00
pycore_jit.h GH-112354: Initial implementation of warm up on exits and trace-stitching (GH-114142) 2024-02-20 09:39:55 +00:00
pycore_list.h gh-116381: Remove bad specializations, add fail stats (GH-116464) 2024-03-08 00:21:21 +08:00
pycore_llist.h gh-111964: Implement stop-the-world pauses (gh-112471) 2024-01-23 11:08:23 -07:00
pycore_lock.h gh-114271: Fix race in `Thread.join()` (#114839) 2024-03-16 13:56:30 +01:00
pycore_long.h GH-115802: JIT "small" code for Windows (GH-115964) 2024-02-29 08:11:28 -08:00
pycore_memoryobject.h gh-106320: Remove private _PyManagedBuffer_Type (#108431) 2023-08-24 19:07:54 +02:00
pycore_mimalloc.h gh-112536: Define MI_TSAN to 1 for --with-mimalloc and --with-thread-sanitizer (gh-116558) 2024-03-11 22:25:55 +09:00
pycore_modsupport.h gh-111956: Add thread-safe one-time initialization. (gh-111960) 2023-11-16 12:19:54 -07:00
pycore_moduleobject.h gh-106320: Remove private _PyModule API (#107070) 2023-07-22 21:41:11 +00:00
pycore_namespace.h gh-107211: No longer export internal functions (4) (#107217) 2023-07-25 03:16:28 +00:00
pycore_object.h gh-115754: Add Py_GetConstant() function (#116883) 2024-03-21 16:07:00 +00:00
pycore_object_alloc.h gh-112529: Use GC heaps for GC allocations in free-threaded builds (gh-114157) 2024-01-21 01:14:45 +09:00
pycore_object_stack.h gh-111968: Refactor _PyXXX_Fini to integrate with _PyObject_ClearFreeLists (gh-114899) 2024-02-10 00:57:04 +00:00
pycore_object_state.h gh-111968: Rename freelist related struct names to Eric's suggestion (gh-115329) 2024-02-14 00:32:51 +00:00
pycore_obmalloc.h gh-113055: Use pointer for interp->obmalloc state (gh-113412) 2024-01-26 19:38:14 -08:00
pycore_obmalloc_init.h gh-113055: Use pointer for interp->obmalloc state (gh-113412) 2024-01-26 19:38:14 -08:00
pycore_opcode_metadata.h GH-116422: Factor out eval breaker checks at end of calls into its own micro-op. (GH-116817) 2024-03-14 16:31:47 +00:00
pycore_opcode_utils.h gh-111354: simplify detection of RESUME after YIELD_VALUE at except-depth 1 (#111459) 2023-11-02 10:18:43 +00:00
pycore_optimizer.h GH-115819: Eliminate Boolean guards when value is known (GH-116355) 2024-03-05 15:06:00 +00:00
pycore_parking_lot.h gh-110850: Cleanup pycore_time.h includes (#115724) 2024-02-20 16:50:43 +00:00
pycore_parser.h gh-110805: Allow the repl to show source code and complete tracebacks (#110775) 2023-10-13 09:25:37 +00:00
pycore_pathconfig.h gh-107211: No longer export internal functions (6) (#108424) 2023-08-24 17:28:35 +02:00
pycore_pyarena.h gh-107211: Fix test_peg_generator (#108435) 2023-08-24 17:47:44 +00:00
pycore_pyatomic_ft_wrappers.h gh-112087: Make list_{concat, repeat, inplace_repeat, ass_item) to be thread-safe (gh-115605) 2024-02-21 01:38:09 +00:00
pycore_pybuffer.h gh-76785: Add SendChannel.send_buffer() (#110246) 2023-10-09 07:39:51 -06:00
pycore_pyerrors.h gh-116809: Restore removed _PyErr_ChainExceptions1() function (#116900) 2024-03-16 21:37:11 +01:00
pycore_pyhash.h gh-111545: Add Py_HashPointer() function (#112096) 2023-12-06 15:09:22 +01:00
pycore_pylifecycle.h gh-112723: Call `PyThreadState_Clear()` from the correct interpreter (#112776) 2023-12-12 17:20:21 -07:00
pycore_pymath.h Remove unused internal macros (#102415) 2023-03-04 12:20:14 +00:00
pycore_pymem.h gh-112075: Support freeing object memory via QSBR (#116344) 2024-03-08 09:56:36 -08:00
pycore_pymem_init.h gh-115103: Implement delayed free mechanism for free-threaded builds (#115367) 2024-02-20 13:04:37 -05:00
pycore_pystate.h gh-116522: Refactor `_PyThreadState_DeleteExcept` (#117131) 2024-03-21 11:21:02 -07:00
pycore_pystats.h gh-108753: Enhance pystats (#108754) 2023-09-06 15:54:59 +00:00
pycore_pythonrun.h gh-106320: Remove private pythonrun API (#108599) 2023-08-29 04:18:52 +02:00
pycore_pythread.h gh-114271: Fix race in `Thread.join()` (#114839) 2024-03-16 13:56:30 +01:00
pycore_qsbr.h gh-115103: Delay reuse of mimalloc pages that store PyObjects (#115435) 2024-03-06 09:42:11 -05:00
pycore_range.h gh-89189: More compact range iterator (GH-27986) 2022-11-30 23:04:30 +02:00
pycore_runtime.h gh-115773: Add tests to exercise the _Py_DebugOffsets structure (#115774) 2024-02-28 10:17:34 +00:00
pycore_runtime_init.h GH-108362: Incremental Cycle GC (GH-116206) 2024-03-20 08:54:42 +00:00
pycore_runtime_init_generated.h gh-85283: Convert grp extension to the limited C API (#116611) 2024-03-12 00:46:53 +00:00
pycore_semaphore.h gh-110850: Cleanup pycore_time.h includes (#115724) 2024-02-20 16:50:43 +00:00
pycore_setobject.h gh-116381: Specialize CONTAINS_OP (GH-116385) 2024-03-07 03:30:11 +08:00
pycore_signal.h gh-109693: Use pyatomic.h for signal module (gh-110480) 2023-10-10 08:26:29 +09:00
pycore_sliceobject.h GH-115802: JIT "small" code for Windows (GH-115964) 2024-02-29 08:11:28 -08:00
pycore_strhex.h gh-107211: No longer export pycore_strhex.h functions (#108229) 2023-08-21 18:12:22 +00:00
pycore_structseq.h gh-107211: No longer export internal functions (4) (#107217) 2023-07-25 03:16:28 +00:00
pycore_symtable.h gh-114828: parenthesize non-atomic macro definitions in pycore_symtable.h (#115143) 2024-02-07 13:19:47 -07:00
pycore_sysmodule.h gh-106320: Remove private _PySys functions (#108452) 2023-08-24 20:02:09 +00:00
pycore_time.h gh-110850: Fix _PyTime_FromSecondsDouble() API (#116606) 2024-03-11 16:35:29 +00:00
pycore_token.h gh-107211: No longer export internal functions (7) (#108425) 2023-08-24 17:40:56 +02:00
pycore_traceback.h gh-110721: Use the traceback module for PyErr_Display() and fallback to the C implementation (#110702) 2023-10-12 14:52:14 +00:00
pycore_tracemalloc.h gh-107211: No longer export internal functions (3) (#107215) 2023-07-25 02:25:45 +00:00
pycore_tstate.h gh-115103: Implement delayed free mechanism for free-threaded builds (#115367) 2024-02-20 13:04:37 -05:00
pycore_tuple.h gh-116381: Remove bad specializations, add fail stats (GH-116464) 2024-03-08 00:21:21 +08:00
pycore_typeobject.h gh-111696, PEP 737: Add %T and %N to PyUnicode_FromFormat() (#116839) 2024-03-14 22:23:00 +00:00
pycore_typevarobject.h gh-104549: Set __module__ on TypeAliasType (#104550) 2023-05-18 15:56:15 -07:00
pycore_ucnhash.h gh-111972: Make Unicode name C APIcapsule initialization thread-safe (#112249) 2023-11-30 11:12:49 +01:00
pycore_unicodeobject.h GH-115802: JIT "small" code for Windows (GH-115964) 2024-02-29 08:11:28 -08:00
pycore_unicodeobject_generated.h gh-85283: Convert grp extension to the limited C API (#116611) 2024-03-12 00:46:53 +00:00
pycore_unionobject.h gh-105858: Expose some union-related objects as internal APIs (GH-116025) 2024-02-28 09:56:40 +00:00
pycore_uop_ids.h GH-116422: Factor out eval breaker checks at end of calls into its own micro-op. (GH-116817) 2024-03-14 16:31:47 +00:00
pycore_uop_metadata.h GH-116422: Factor out eval breaker checks at end of calls into its own micro-op. (GH-116817) 2024-03-14 16:31:47 +00:00
pycore_warnings.h gh-107211: No longer export internal functions (3) (#107215) 2023-07-25 02:25:45 +00:00
pycore_weakref.h gh-111926: Set up basic sementics of weakref API for freethreading (gh-113621) 2024-01-03 13:25:27 +00:00