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Author SHA1 Message Date
Mark Shannon f6f4e8a662 GH-132554: "Virtual" iterators (GH-132555) 
* FOR_ITER now pushes either the iterator and NULL or leaves the iterable and pushes tagged zero

* NEXT_ITER uses the tagged int as the index into the sequence or, if TOS is NULL, iterates as before.
 2025-05-27 15:59:45 +01:00
Lysandros Nikolaou 60202609a2 gh-132661: Implement PEP 750 (#132662) 
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Wingy <git@wingysam.xyz>
Co-authored-by: Koudai Aono <koxudaxi@gmail.com>
Co-authored-by: Dave Peck <davepeck@gmail.com>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Paul Everitt <pauleveritt@me.com>
Co-authored-by: sobolevn <mail@sobolevn.me>
 2025-04-30 11:46:41 +02:00
mpage 053c285f6b gh-130704: Strength reduce LOAD_FAST{_LOAD_FAST} (#130708) 
Optimize `LOAD_FAST` opcodes into faster versions that load borrowed references onto the operand stack when we can prove that the lifetime of the local outlives the lifetime of the temporary that is loaded onto the stack.
 2025-04-01 10:18:42 -07:00
Mark Shannon 83d54fa876 GH-130296: Remove _PyOpcode_max_stack_effect as it is no longer used (GH-131493) 2025-03-20 11:42:54 +00:00
Yan Yanchii 75103d975c gh-126835: Move constant tuple folding from ast_opt to CFG (#130769) 2025-03-19 20:59:55 +00:00
Yan Yanchii 55815a6474 gh-130480: Move duplicate LOAD_SMALL_INT optimization from codegen to CFG (#130481) 2025-03-14 21:23:27 +00:00
Mark Shannon 89df62c120 GH-128534: Fix behavior of branch monitoring for async for (GH-130847) 
* Both branches in a pair now have a common source and are included in co_branches
 2025-03-07 14:30:31 +00:00
Tomasz Pytel aeb2327386 gh-130574: renumber RESUME opcode from 149 to 128 (GH-130685) 2025-03-06 08:59:36 +00:00
Irit Katriel a1417b211f gh-100239: replace BINARY_SUBSCR & family by BINARY_OP with oparg NB_SUBSCR (#129700) 2025-02-07 22:39:54 +00:00
Mark Shannon 75b4962157 GH-128914: Remove all but one conditional stack effects (GH-129226) 
* Remove all 'if (0)' and 'if (1)' conditional stack effects

* Use array instead of conditional for BUILD_SLICE args

* Refactor LOAD_GLOBAL to use a common conditional uop

* Remove conditional stack effects from LOAD_ATTR specializations

* Replace conditional stack effects in LOAD_ATTR with a 0 or 1 sized array.

* Remove conditional stack effects from CALL_FUNCTION_EX
 2025-01-27 16:24:48 +00:00
Sam Gross a10f99375e Revert "GH-128914: Remove conditional stack effects from bytecodes.c and the code generators (GH-128918)" (GH-129202) 
The commit introduced a ~2.5-3% regression in the free threading build.

This reverts commit ab61d3f430.
 2025-01-23 09:26:25 +00:00
Mark Shannon ab61d3f430 GH-128914: Remove conditional stack effects from bytecodes.c and the code generators (GH-128918) 2025-01-20 17:09:23 +00:00
Mark Shannon f826beca0c GH-128375: Better instrument for FOR_ITER (GH-128445) 2025-01-06 17:54:47 +00:00
Mark Shannon d2f1d917e8 GH-122548: Implement branch taken and not taken events for sys.monitoring (GH-122564) 2024-12-19 16:59:51 +00:00
Donghee Na 48c70b8f7d gh-115999: Enable BINARY_SUBSCR_GETITEM for free-threaded build (gh-127737) 2024-12-19 11:08:17 +09:00
Mark Shannon faa3272fb8 GH-125837: Split LOAD_CONST into three. (GH-125972) 
* Add LOAD_CONST_IMMORTAL opcode

* Add LOAD_SMALL_INT opcode

* Remove RETURN_CONST opcode
 2024-10-29 11:15:42 +00:00
Mark Shannon 7a65439b93 GH-122390: Replace _Py_GetbaseOpcode with _Py_GetBaseCodeUnit (GH-122942) 2024-08-13 14:22:57 +01:00
Mark Shannon 2e14a52cce GH-122160: Remove BUILD_CONST_KEY_MAP opcode. (GH-122164) 2024-07-25 16:24:29 +01:00
Mark Shannon 9cefcc0ee7 GH-120507: Lower the BEFORE_WITH and BEFORE_ASYNC_WITH instructions. (#120640) 
* Remove BEFORE_WITH and BEFORE_ASYNC_WITH instructions.

* Add LOAD_SPECIAL instruction

* Reimplement `with` and `async with` statements using LOAD_SPECIAL
 2024-06-18 12:17:46 +01:00
Irit Katriel 97b69db167 gh-93691: fix too broad source locations of for statement iterators (#120330) 2024-06-12 12:53:19 +01:00
Jelle Zijlstra 98e855fcc1 gh-119180: Add LOAD_COMMON_CONSTANT opcode (#119321) 
The PEP 649 implementation will require a way to load NotImplementedError
from the bytecode. @markshannon suggested implementing this by converting
LOAD_ASSERTION_ERROR into a more general mechanism for loading constants.

This PR adds this new opcode. I will work on the rest of the implementation
of the PEP separately.

Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>
 2024-05-22 00:46:39 +00:00
Sam Gross 2ba2c142a6 gh-118527: Intern code name and filename on default build (#118576) 
Interned and non-interned strings are treated differently by `marshal`,
so be consistent between the default and free-threaded build.
 2024-05-06 17:24:14 -04:00
Mark Shannon 981d172f7f GH-112354: END_FOR instruction to only pop one value. (GH-114247) 
* Compiler emits END_FOR; POP_TOP instead of END_FOR. To support tier 2 side exits in loops.
 2024-01-24 15:10:17 +00:00
Irit Katriel d49aba5a7a gh-111354: Simplify _PyGen_yf by moving some of its work to the compiler and frame state (#111648) 2023-11-03 10:01:36 +00:00
Irit Katriel 52cc4af6ae gh-111354: simplify detection of RESUME after YIELD_VALUE at except-depth 1 (#111459) 2023-11-02 10:18:43 +00:00
Brandt Bucher 22e65eecaa GH-105848: Replace KW_NAMES + CALL with LOAD_CONST + CALL_KW (GH-109300) 2023-09-13 10:25:45 -07:00
Irit Katriel 8b55adfa8f gh-109256: allocate opcode IDs for internal opcodes in their own range (#109269) 2023-09-12 10:36:17 +00:00
Mark Shannon 0858328ca2 GH-108614: Add RESUME_CHECK instruction (GH-108630) 2023-09-07 14:39:03 +01:00
Irit Katriel 665a4391e1 gh-105481: generate op IDs from bytecode.c instead of hard coding them in opcode.py (#107971) 2023-08-16 22:25:18 +00:00
Brandt Bucher a9caf9cf90 GH-105848: Simplify the arrangement of CALL's stack (GH-107788) 2023-08-09 18:19:39 +00:00
Mark Shannon 1d857da7f0 GH-77273: Better bytecodes for f-strings (GH-6132) 2023-06-14 16:15:08 +01:00
Mark Shannon 4bfa01b9d9 GH-104584: Plugin optimizer API (GH-105100) 2023-06-02 11:46:18 +01:00
Pablo Galindo Salgado 1ef61cf71a gh-102856: Initial implementation of PEP 701 (#102855) 
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>
Co-authored-by: Batuhan Taskaya <isidentical@gmail.com>
Co-authored-by: Marta Gómez Macías <mgmacias@google.com>
Co-authored-by: sunmy2019 <59365878+sunmy2019@users.noreply.github.com>
 2023-04-19 11:18:16 -05:00
Brandt Bucher b4978ff872 GH-88691: Shrink the CALL caches (GH-103230) 2023-04-05 14:15:49 -07:00
Brandt Bucher 121057aa36 GH-89987: Shrink the BINARY_SUBSCR caches (GH-103022) 2023-03-29 15:53:30 -07:00
penguin_wwy 753fc8a5d6 gh-101632: Add the new RETURN_CONST opcode (#101633) 2023-02-07 22:32:21 +00:00
Brandt Bucher 3c033a2e6f GH-99554: Pack location tables more effectively (GH-99556) 2022-12-21 16:41:18 -08:00
Mark Shannon 22863df7ca GH-96793: Change FOR_ITER to not pop the iterator on exhaustion. (GH-96801) 
Change FOR_ITER to have the same stack effect regardless of whether it branches or not.
Performance is unchanged as FOR_ITER (and specialized forms jump over the cleanup code).
 2022-10-27 11:55:03 +01:00
Irit Katriel 324d01944d gh-94485: Set line number of module's RESUME instruction to 0, as specified by PEP 626 (GH-94552) 
Co-authored-by: Mark Shannon <mark@hotpy.org>
 2022-07-05 14:38:44 +02:00
Dennis Sweeney 5fcfdd87c9 GH-91432: Specialize FOR_ITER (GH-91713) 
* Adds FOR_ITER_LIST and FOR_ITER_RANGE specializations.

* Adds _PyLong_AssignValue() internal function to avoid temporary boxing of ints.
 2022-06-21 11:19:26 +01:00
Ken Jin b083450f88 GH-93429: Merge LOAD_METHOD back into LOAD_ATTR (GH-93430) 2022-06-14 11:36:22 +01:00
Ken Jin d52ffc1d1f gh-93382: Cache result of PyCode_GetCode in codeobject (GH-93383) 
Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
Co-authored-by: Dennis Sweeney <36520290+sweeneyde@users.noreply.github.com>
 2022-06-04 00:41:18 +08:00
Mark Shannon e48ac9c100 GH-90690: Remove PRECALL instruction (GH-92925) 2022-05-19 11:05:26 +01:00
Inada Naoki 6dcfd6c5e3 gh-78214: marshal: Stabilize FLAG_REF usage (GH-8226) 
Use FLAG_REF always for interned strings.

Refcounts of interned string is very unstable.
When compiling same source, refcounts of interned string in the output may be 1 or >1.
It makes FLAG_REF usage unstable.

To help reproducible build, use FLAG_REF for interned string even if refcnt(obj)==1.
 2022-05-04 10:01:15 +09:00
Mark Shannon 944fffee89 GH-88116: Use a compact format to represent end line and column offsets. (GH-91666) 
* Stores all location info in linetable to conform to PEP 626.

* Remove column table from code objects.

* Remove end-line table from code objects.

* Document new location table format
 2022-04-21 16:10:37 +01:00
Irit Katriel a00518d9ad bpo-47120: Replace the JUMP_ABSOLUTE opcode by the relative JUMP_BACKWARD (GH-32115) 2022-03-31 14:14:15 +01:00
Brandt Bucher f193631387 bpo-46841: Use inline caching for calls (GH-31709) 2022-03-07 11:45:00 -08:00
Brandt Bucher 05a8bc1c94 bpo-46841: Use inline caching for attribute accesses (GH-31640) 2022-03-03 15:31:00 -08:00
Mark Shannon 3b0f1c5a71 bpo-46841: Use inline cache for BINARY_SUBSCR. (GH-31618) 2022-03-01 16:00:34 +00:00
Mark Shannon 59585d6b2e bpo-46329: Streamline calling sequence a bit. (GH-31465) 
* Move handling of bound-methods to PRECALL.

* Remove call_shape.postcall_shrink

* Remove call_shape.callable

* Remove call_shape.callable. Change CALL oparg to match PRECALL oparg.

* Move KW_NAMES before PRECALL.

* Update opcode docs in dis.rst
 2022-02-21 18:26:47 +00:00