Commit Graph

148 Commits

Author SHA1 Message Date
Corvin 24aa249a66
gh-107932: Fix dis module for bytecode that does not have an associated source line (GH-107988) 2023-08-25 09:31:26 +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
Irit Katriel d77d973335
gh-105481: remove dependency of _inline_cache_entries on opname (#107339) 2023-07-27 14:15:25 +01:00
Brandt Bucher 214a25dd81
GH-104584: Miscellaneous fixes for -Xuops (GH-106908) 2023-07-20 16:35:39 +00:00
Brandt Bucher 7b2d94d875
GH-106008: Make implicit boolean conversions explicit (GH-106003) 2023-06-29 13:49:54 -07:00
Mark Shannon 1d857da7f0
GH-77273: Better bytecodes for f-strings (GH-6132) 2023-06-14 16:15:08 +01:00
Mark Shannon 09ffa69e2e
GH-105678: Split MAKE_FUNCTION into MAKE_FUNCTION and SET_FUNCTION_ATTRIBUTE (GH-105680) 2023-06-13 09:51:05 +01:00
Tomas R 18d16e93b6
gh-102676: Add more convenience properties to `dis.Instruction` (#103969)
Adds start_offset, cache_offset, end_offset, baseopcode,
baseopname, jump_target and oparg to dis.Instruction.

Also slightly improves the disassembly output by allowing
opnames to overflow into the space reserved for opargs.
2023-06-11 08:50:34 -07:00
Mark Shannon 0689340366
GH-105229: Replace some superinstructions with single instruction equivalent. (GH-105230) 2023-06-05 11:07:04 +01:00
Juhi Chandalia 872cbc6132
GH-103963: Make dis display names of args for intrinsics opcodes (#104029) 2023-05-02 19:00:17 -07:00
Juhi Chandalia d45225bd66
GH-99944: Make dis display the value of oparg of KW_NAMES (#103856)
Co-authored-by: chilaxan <chilaxan@gmail.com>
2023-04-26 19:00:36 +01:00
Carl Meyer 0dc8b50d33
gh-87729: add LOAD_SUPER_ATTR instruction for faster super() (#103497)
This speeds up `super()` (by around 85%, for a simple one-level
`super().meth()` microbenchmark) by avoiding allocation of a new
single-use `super()` object on each use.
2023-04-24 22:22:14 +00:00
chgnrdv 2b6f5c3483
gh-102114: Make dis print more concise tracebacks for syntax errors in str inputs (#102115) 2023-04-15 06:53:31 +01:00
gaogaotiantian 34eb6f7276
gh-103046: Display current line correctly for `dis.disco()` with CACHE entries (#103047) 2023-03-27 23:22:06 +01:00
Irit Katriel e1e9bab006
gh-102778: Add sys.last_exc, deprecate sys.last_type, sys.last_value,sys.last_traceback (#102779) 2023-03-18 11:47:11 +00:00
Mark Shannon 160f2fe2b9
GH-87849: Simplify stack effect of SEND and specialize it for generators and coroutines. (GH-101788) 2023-02-13 11:24:55 +00:00
penguin_wwy 753fc8a5d6
gh-101632: Add the new RETURN_CONST opcode (#101633) 2023-02-07 22:32:21 +00:00
Mark Shannon 6e4e14d98f
GH-100923: Embed jump mask in `COMPARE_OP` oparg (GH-100924) 2023-01-11 20:40:43 +00:00
Nikita Sobolev e0b4d966a8
Remove unused variable from `dis._find_imports` (#100396) 2022-12-21 22:25:02 +05:30
Brandt Bucher c7f5708714
GH-98686: Get rid of "adaptive" and "quick" instructions (GH-99182) 2022-11-09 10:50:09 -08:00
Pablo Galindo Salgado c26500224f
bpo-40222: Mark exception table function in the dis module as private (#95961) 2022-08-14 15:42:31 +01:00
Irit Katriel c57aad777a
gh-94216: add pseudo instructions to the dis/opcodes modules (GH-94241) 2022-07-01 15:33:35 +01:00
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
Brandt Bucher f8e576be0a
GH-91389: Fix dis position information for CACHEs (GH-93663) 2022-06-16 13:49:32 -07:00
Ken Jin b083450f88
GH-93429: Merge `LOAD_METHOD` back into `LOAD_ATTR` (GH-93430) 2022-06-14 11:36:22 +01:00
Dong-hee Na b013804134
gh-92932: dis._unpack_opargs should handle EXTENDED_ARG_QUICK (gh-92945) 2022-06-03 11:29:27 +09:00
Brandt Bucher 3f61db4756
gh-90997: Move `CACHE` handling into `_unpack_opargs` (#92409)
* Move CACHE handling into _unpack_opargs

* Remove auto-added import

* blurb add
2022-05-06 18:57:08 +01:00
Brandt Bucher 93a666b5a5
gh-90997: Show cached inline values in `dis` output (#92360) 2022-05-06 15:18:09 +01:00
Irit Katriel 84b986ba10
gh-91276: revert the increase of dis output width (GH-92126) 2022-05-02 16:51:17 +01:00
penguin_wwy e590379197
gh-90997: bpo-46841: Disassembly of quickened code (GH-32099) 2022-04-19 09:45:08 +01:00
Irit Katriel e44f988b26
gh-91276: make space for longer opcodes in dis output (GH-91444) 2022-04-12 14:35:56 +01:00
Irit Katriel dd207a6ac5
bpo-47120: make POP_JUMP_IF_TRUE/FALSE/NONE/NOT_NONE relative (GH-32400) 2022-04-11 10:40:24 +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
Mark Shannon 3011a097bd
Use low bit of LOAD_GLOBAL's oparg to indicate whether it should push an additional NULL. (GH-31933) 2022-03-17 16:14:57 +00:00
Brandt Bucher 0f41aac109
bpo-46841: Use *inline* caching for `BINARY_OP` (GH-31543) 2022-02-25 12:11:34 +00:00
Saul Shanabrook c3ce7781e3
bpo-46724: Fix dis support for overflow args (GH-31285) 2022-02-18 09:56:23 +00:00
Nikita Sobolev 58f3d98098
bpo-46422: use `dis.Positions` in `dis.Instruction` (GH-30716)
Co-authored-by: Batuhan Taskaya <isidentical@gmail.com>
2022-01-24 14:09:20 +03:00
Brandt Bucher 9178f533ff
bpo-45636: Merge all numeric operators (GH-29482) 2021-11-10 22:56:22 -08:00
Irit Katriel cb414cf0e2
bpo-45757: Fix bug where dis produced an incorrect oparg on EXTENDED_ARG before a no-arg opcode (GH-29480) 2021-11-09 20:07:38 +00:00
Irit Katriel 40d2ac92f9
bpo-45152: refactor the dis module to make handling of hasconst opcodes more generic (GH-28258) 2021-09-15 10:14:15 +01:00
Irit Katriel c99fc4e53a
bpo-45168: change dis output to omit missing values rather than replacing them by their index (GH-28313) 2021-09-14 10:09:05 +01:00
Irit Katriel 04676b6946
bpo-45017: move opcode-related logic from modulefinder to dis (GH-28246) 2021-09-09 14:04:12 +01:00
Batuhan Taskaya 85ea2d6165
bpo-43950: support positions for dis.Instructions created through dis.Bytecode (GH-28142) 2021-09-03 18:29:09 +03:00
Batuhan Taskaya 693cec0e2d
bpo-43950: include position in dis.Instruction (GH-27015)
Automerge-Triggered-By: GH:isidentical
2021-07-04 12:05:05 -07:00
Eric Snow 2ab27c4af4
bpo-43693: Un-revert commits 2c1e258 and b2bf2bc. (gh-26577)
These were reverted in gh-26530 (commit 17c4edc) due to refleaks.

* 2c1e258 - Compute deref offsets in compiler (gh-25152)
* b2bf2bc - Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)

This change fixes the refleaks.

https://bugs.python.org/issue43693
2021-06-07 12:22:26 -06:00
Pablo Galindo 17c4edc4e0
bpo-43693: Revert commits 2c1e2583fd and b2bf2bc1ec (GH-26530)
* Revert "bpo-43693: Compute deref offsets in compiler (gh-25152)"

This reverts commit b2bf2bc1ec.

* Revert "bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)"

This reverts commit 2c1e2583fd.

These two commits are breaking the refleak buildbots.
2021-06-04 17:51:05 +01:00
Mark Shannon b2bf2bc1ec
bpo-43693: Compute deref offsets in compiler (gh-25152)
Merges locals and cells into a single array.
Saves a pointer in the interpreter and means that we don't need the LOAD_CLOSURE opcode any more

https://bugs.python.org/issue43693
2021-06-03 18:03:54 -06:00
Eric Snow 2c1e2583fd
bpo-43693: Add new internal code objects fields: co_fastlocalnames and co_fastlocalkinds. (gh-26388)
A number of places in the code base (notably ceval.c and frameobject.c) rely on mapping variable names to indices in the frame "locals plus" array (AKA fast locals), and thus opargs.  Currently the compiler indirectly encodes that information on the code object as the tuples co_varnames, co_cellvars, and co_freevars.  At runtime the dependent code must calculate the proper mapping from those, which isn't ideal and impacts performance-sensitive sections.  This is something we can easily address in the compiler instead.

This change addresses the situation by replacing internal use of co_varnames, etc. with a single combined tuple of names in locals-plus order, along with a minimal array mapping each to its kind (local vs. cell vs. free).  These two new PyCodeObject fields, co_fastlocalnames and co_fastllocalkinds, are not exposed to Python code for now, but co_varnames, etc. are still available with the same values as before (though computed lazily).

Aside from the (mild) performance impact, there are a number of other benefits:

* there's now a clear, direct relationship between locals-plus and variables
* code that relies on the locals-plus-to-name mapping is simpler
* marshaled code objects are smaller and serialize/de-serialize faster

Also note that we can take this approach further by expanding the possible values in co_fastlocalkinds to include specific argument types (e.g. positional-only, kwargs).  Doing so would allow further speed-ups in _PyEval_MakeFrameVector(), which is where args get unpacked into the locals-plus array.  It would also allow us to shrink marshaled code objects even further.

https://bugs.python.org/issue43693
2021-06-03 10:28:27 -06:00
Mark Shannon adcd220556
bpo-40222: "Zero cost" exception handling (GH-25729)
"Zero cost" exception handling.

* Uses a lookup table to determine how to handle exceptions.
* Removes SETUP_FINALLY and POP_TOP block instructions, eliminating (most of) the runtime overhead of try statements.
* Reduces the size of the frame object by about 60%.
2021-05-07 15:19:19 +01:00