f6f4e8a662
GH-132554: "Virtual" iterators (GH-132555)
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* 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
60202609a2
gh-132661: Implement PEP 750 ( #132662 )
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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
053c285f6b
gh-130704: Strength reduce `LOAD_FAST{_LOAD_FAST}` ( #130708 )
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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
83d54fa876
GH-130296: Remove `_PyOpcode_max_stack_effect` as it is no longer used (GH-131493)
2025-03-20 11:42:54 +00:00
75103d975c
gh-126835: Move constant tuple folding from ast_opt to CFG ( #130769 )
2025-03-19 20:59:55 +00:00
55815a6474
gh-130480: Move duplicate `LOAD_SMALL_INT` optimization from codegen to CFG ( #130481 )
2025-03-14 21:23:27 +00:00
89df62c120
GH-128534: Fix behavior of branch monitoring for `async for` (GH-130847)
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* Both branches in a pair now have a common source and are included in co_branches
2025-03-07 14:30:31 +00:00
aeb2327386
gh-130574: renumber RESUME opcode from 149 to 128 (GH-130685)
2025-03-06 08:59:36 +00:00
a1417b211f
gh-100239: replace BINARY_SUBSCR & family by BINARY_OP with oparg NB_SUBSCR ( #129700 )
2025-02-07 22:39:54 +00:00
75b4962157
GH-128914: Remove all but one conditional stack effects (GH-129226)
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* 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
a10f99375e
Revert "GH-128914: Remove conditional stack effects from `bytecodes.c` and the code generators (GH-128918)" (GH-129202)
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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
ab61d3f430
GH-128914: Remove conditional stack effects from `bytecodes.c` and the code generators (GH-128918)
2025-01-20 17:09:23 +00:00
f826beca0c
GH-128375: Better instrument for `FOR_ITER` (GH-128445)
2025-01-06 17:54:47 +00:00
d2f1d917e8
GH-122548: Implement branch taken and not taken events for sys.monitoring (GH-122564)
2024-12-19 16:59:51 +00:00
48c70b8f7d
gh-115999: Enable BINARY_SUBSCR_GETITEM for free-threaded build (gh-127737)
2024-12-19 11:08:17 +09:00
faa3272fb8
GH-125837: Split `LOAD_CONST` into three. (GH-125972)
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* Add LOAD_CONST_IMMORTAL opcode
* Add LOAD_SMALL_INT opcode
* Remove RETURN_CONST opcode
2024-10-29 11:15:42 +00:00
7a65439b93
GH-122390: Replace `_Py_GetbaseOpcode` with `_Py_GetBaseCodeUnit` (GH-122942)
2024-08-13 14:22:57 +01:00
2e14a52cce
GH-122160: Remove BUILD_CONST_KEY_MAP opcode. (GH-122164)
2024-07-25 16:24:29 +01:00
9cefcc0ee7
GH-120507: Lower the `BEFORE_WITH` and `BEFORE_ASYNC_WITH` instructions. ( #120640 )
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* 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
97b69db167
gh-93691: fix too broad source locations of for statement iterators ( #120330 )
2024-06-12 12:53:19 +01:00
98e855fcc1
gh-119180: Add LOAD_COMMON_CONSTANT opcode ( #119321 )
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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
2ba2c142a6
gh-118527: Intern code name and filename on default build ( #118576 )
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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
981d172f7f
GH-112354: `END_FOR` instruction to only pop one value. (GH-114247)
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* 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
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
52cc4af6ae
gh-111354: simplify detection of RESUME after YIELD_VALUE at except-depth 1 ( #111459 )
2023-11-02 10:18:43 +00:00
22e65eecaa
GH-105848: Replace KW_NAMES + CALL with LOAD_CONST + CALL_KW (GH-109300)
2023-09-13 10:25:45 -07:00
8b55adfa8f
gh-109256: allocate opcode IDs for internal opcodes in their own range ( #109269 )
2023-09-12 10:36:17 +00:00
0858328ca2
GH-108614: Add `RESUME_CHECK` instruction (GH-108630)
2023-09-07 14:39:03 +01:00
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
a9caf9cf90
GH-105848: Simplify the arrangement of CALL's stack (GH-107788)
2023-08-09 18:19:39 +00:00
1d857da7f0
GH-77273: Better bytecodes for f-strings (GH-6132)
2023-06-14 16:15:08 +01:00
4bfa01b9d9
GH-104584: Plugin optimizer API (GH-105100)
2023-06-02 11:46:18 +01:00
1ef61cf71a
gh-102856: Initial implementation of PEP 701 ( #102855 )
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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
b4978ff872
GH-88691: Shrink the CALL caches (GH-103230)
2023-04-05 14:15:49 -07:00
121057aa36
GH-89987: Shrink the BINARY_SUBSCR caches (GH-103022)
2023-03-29 15:53:30 -07:00
753fc8a5d6
gh-101632: Add the new RETURN_CONST opcode ( #101633 )
2023-02-07 22:32:21 +00:00
3c033a2e6f
GH-99554: Pack location tables more effectively (GH-99556)
2022-12-21 16:41:18 -08:00
22863df7ca
GH-96793: Change `FOR_ITER` to not pop the iterator on exhaustion. (GH-96801)
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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
324d01944d
gh-94485: Set line number of module's RESUME instruction to 0, as specified by PEP 626 (GH-94552)
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Co-authored-by: Mark Shannon <mark@hotpy.org>
2022-07-05 14:38:44 +02:00
5fcfdd87c9
GH-91432: Specialize FOR_ITER (GH-91713)
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* 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
b083450f88
GH-93429: Merge `LOAD_METHOD` back into `LOAD_ATTR` (GH-93430)
2022-06-14 11:36:22 +01:00
d52ffc1d1f
gh-93382: Cache result of `PyCode_GetCode` in codeobject (GH-93383)
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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
e48ac9c100
GH-90690: Remove `PRECALL` instruction (GH-92925)
2022-05-19 11:05:26 +01:00
6dcfd6c5e3
gh-78214: marshal: Stabilize FLAG_REF usage (GH-8226)
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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
944fffee89
GH-88116: Use a compact format to represent end line and column offsets. (GH-91666)
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* 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
a00518d9ad
bpo-47120: Replace the JUMP_ABSOLUTE opcode by the relative JUMP_BACKWARD (GH-32115)
2022-03-31 14:14:15 +01:00
f193631387
bpo-46841: Use inline caching for calls (GH-31709)
2022-03-07 11:45:00 -08:00
05a8bc1c94
bpo-46841: Use inline caching for attribute accesses (GH-31640)
2022-03-03 15:31:00 -08:00
3b0f1c5a71
bpo-46841: Use inline cache for `BINARY_SUBSCR`. (GH-31618)
2022-03-01 16:00:34 +00:00
59585d6b2e
bpo-46329: Streamline calling sequence a bit. (GH-31465)
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* 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
Mark Shannon