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Author SHA1 Message Date
Ken Jin
96346cb6d0
bpo-44889: Specialize LOAD_METHOD with PEP 659 adaptive interpreter (GH-27722) 
Adds four new instructions:

* LOAD_METHOD_ADAPTIVE
* LOAD_METHOD_CACHED
* LOAD_METHOD_MODULE
* LOAD_METHOD_CLASS
 2021-08-17 15:55:55 +01:00
Mark Shannon
4f51fa9e2d
bpo-44900: Add five superinstructions. (GH-27741) 
* LOAD_FAST LOAD_FAST
* STORE_FAST LOAD_FAST
* LOAD_FAST LOAD_CONST
* LOAD_CONST LOAD_FAST
* STORE_FAST STORE_FAST
 2021-08-16 12:23:13 +01:00
Germán Méndez Bravo
03648a2a91
bpo-43392: Optimize repeated calls to __import__() (GH-24735) 
Implements a two steps check in `importlib._bootstrap._find_and_load()` to avoid locking when the module has been already imported and it's ready.

---

Using `importlib.__import__()`, after this, does show a big difference:

Before:
```
$ ./python -c 'import timeit; print(timeit.timeit("__import__(\"timeit\")", setup="from importlib import __import__"))'
15.92248619502061
```

After:
```
$ ./python -c 'import timeit; print(timeit.timeit("__import__(\"timeit\")", setup="from importlib import __import__"))'
1.206068897008663
```

---
 2021-08-12 11:23:29 -07:00
Pablo Galindo Salgado
8e832fb2a2
bpo-44885: Correct the ast locations of f-strings with format specs and repeated expressions (GH-27729) 2021-08-12 17:13:30 +01:00
Irit Katriel
8ac0886091
bpo-44890: collect specialization stats if Py_DEBUG (GH-27731) 2021-08-12 12:15:06 +01:00
Mark Shannon
a530a9538f
bpo-44878: Remove loop from interpreter. All dispatching is done by gotos. (GH-27727) 2021-08-12 11:47:38 +01:00
Irit Katriel
64a7812c17
Update test__opcode and _Py_GetSpecializationStats with recent specialization stat changes (GH-27728) 2021-08-11 17:34:01 +01:00
Mark Shannon
f66d00fdd7
bpo-44878: Remove the switch from the main interpreter loop when using computed gotos. (GH-27726) 
* Refactor dispatch logic to make flow of control clearer. Moves lltrace and dxprofile instrumentation into DISPATCH macro.

* Remove switch in interpreter loop when using computed gotos. There is no need for two nearly-duplicate dispatch tables.
 2021-08-11 14:02:11 +01:00
Mark Shannon
3f3d5dcac3
bpo-44878: _PyEval_EvalFrameDefault readability improvements (GH-27725) 
* Move a few variable declarations to point of definition.

* Factor out tracing of function entry into helper function.
 2021-08-11 11:47:52 +01:00
Mark Shannon
c174eafc33
Add missing DISPATCH() (GH-27715) 2021-08-11 09:25:26 +01:00
Mark Shannon
9816777861
Classify specialization failures. Provides more useful stats, with lower overhead. (GH-27701) 2021-08-10 14:53:05 +01:00
Mark Shannon
c7ea1e3dce
Fix stats for STORE_ATTR specialization. (GH-27708) 2021-08-10 11:40:37 +01:00
Irit Katriel
d5c217475c
bpo-25782: avoid hang in PyErr_SetObject when current exception has a cycle in its context chain (GH-27626) 
Co-authored-by: Dennis Sweeney 36520290+sweeneyde@users.noreply.github.com
 2021-08-10 11:37:25 +02:00
Serhiy Storchaka
058fb35b57
bpo-44854: Remove trailing whitespaces (GH-27689) 2021-08-09 21:32:54 +03:00
Mark Shannon
41bb564cd6
Remove unused variable. (GH-27677) 2021-08-09 14:44:26 +01:00
Mark Shannon
ac75f6bdd4
bpo-44826: Specialize STORE_ATTR (GH-27590) 
* Generalize cache names for LOAD_ATTR to allow store and delete specializations.

* Factor out specialization of attribute dictionary access.

* Specialize STORE_ATTR.
 2021-08-09 10:40:21 +01:00
Mark Shannon
b854557b49
bpo-44840: Compiler: Move duplication of exit blocks with no line numbers to after CFG optimization. (GH-27656) 2021-08-09 10:18:59 +01:00
Pablo Galindo Salgado
a40675c659
bpo-44856: Possible reference leak in error paths of update_bases() and __build_class__ (GH-27647) 2021-08-07 12:10:14 +02:00
Victor Stinner
c24896c0e3
bpo-44849: Fix os.set_inheritable() on FreeBSD 14 with O_PATH (GH-27623) 
Fix the os.set_inheritable() function on FreeBSD 14 for file
descriptor opened with the O_PATH flag: ignore the EBADF error on
ioctl(), fallback on the fcntl() implementation.
 2021-08-06 15:15:10 +02:00
Victor Stinner
4d77691172
bpo-44584: Deprecate PYTHONTHREADDEBUG env var (GH-27065) 
The threading debug (PYTHONTHREADDEBUG environment variable) is
deprecated in Python 3.10 and will be removed in Python 3.12. This
feature requires a debug build of Python.
 2021-08-06 13:11:12 +02:00
Mark Shannon
c83919bd63
Add option to write specialization stats to files and script to summarize. (GH-27575) 
* Add option to write stats to random file in a directory.

* Add script to summarize stats.
 2021-08-04 11:39:52 +01:00
Noah
83ca46b778
closes bpo-39091: Fix segfault when Exception constructor returns non-exception for gen.throw. (#17658) 
Co-authored-by: Benjamin Peterson <benjamin@python.org>
 2021-08-02 19:17:18 -07:00
Mark Shannon
2116909b3e
Minor fixes to specialization stats. (GH-27457) 
* Use class, not value for fail stats for BINARY_SUBSCR.

* Fix counts for unquickened instructions.
 2021-07-29 20:50:03 +01:00
Irit Katriel
ddd1c418c0
bpo-44725 : expose specialization stats in python (GH-27192) 2021-07-29 17:26:53 +01:00
Brandt Bucher
8d0647485d
bpo-43897: Reject "_" captures and top-level MatchStar in the AST validator (GH-27432) 2021-07-28 17:24:18 -07:00
Batuhan Taskaya
31bec6f1b1
bpo-43897: AST validation for pattern matching nodes (GH24771) 2021-07-28 10:14:45 -07:00
Mariusz Felisiak
11749e2dc2
bpo-44740: Lowercase "internet" and "web" where appropriate. (#27378) 
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
 2021-07-27 00:11:55 +02:00
Mark Shannon
ae0a2b7562
bpo-44590: Lazily allocate frame objects (GH-27077) 
* Convert "specials" array to InterpreterFrame struct, adding f_lasti, f_state and other non-debug FrameObject fields to it.

* Refactor, calls pushing the call to the interpreter upward toward _PyEval_Vector.

* Compute f_back when on thread stack, only filling in value when frame object outlives stack invocation.

* Move ownership of InterpreterFrame in generator from frame object to generator object.

* Do not create frame objects for Python calls.

* Do not create frame objects for generators.
 2021-07-26 11:22:16 +01:00
Charles Burkland
4214f470f0
bpo-44600: Fix line numbers for pattern matching cleanup code (GH-27346) 2021-07-25 16:42:07 -07:00
Batuhan Taskaya
3e235e0447
bpo-43950: support some multi-line expressions for PEP 657 (GH-27339) 
This is basically something that I noticed up while fixing test runs for another issue. It is really common to have multiline calls, and when they fail the display is kind of weird since we omit the annotations. E.g;

```
 $ ./python t.py
Traceback (most recent call last):
  File "/home/isidentical/cpython/cpython/t.py", line 11, in <module>
    frame_1()
    ^^^^^^^^^
  File "/home/isidentical/cpython/cpython/t.py", line 5, in frame_1
    frame_2(              
  File "/home/isidentical/cpython/cpython/t.py", line 2, in frame_2
    return a / 0 / b / c
           ~~^~~
ZeroDivisionError: division by zero
```

This patch basically adds support for annotating the rest of the line, if the instruction covers multiple lines (start_line != end_line).

Automerge-Triggered-By: GH:isidentical
 2021-07-25 15:01:44 -07:00
Filipe Laíns
0a8ae8a50a
bpo-44717: improve AttributeError on circular imports of submodules (GH-27338) 2021-07-24 23:44:46 +01:00
Batuhan Taskaya
ef8b8535cb
bpo-43950: check against the raw string, not the pyobject (GH-27337) 2021-07-24 20:49:17 +03:00
Pablo Galindo Salgado
3eae8f20d7
Revert "bpo-44717: improve AttributeError on circular imports of submodules (GH-27299)" (GH-27331) 
This reverts commit 8072a1181d.
 2021-07-24 14:33:03 +01:00
Batuhan Taskaya
c8362314cc
bpo-43950: ensure source_line is present when specialising the traceback (GH-27313) 2021-07-24 13:50:19 +01:00
Filipe Laíns
8072a1181d
bpo-44717: improve AttributeError on circular imports of submodules (GH-27299) 
Signed-off-by: Filipe Laíns <lains@riseup.net>

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
 2021-07-24 11:50:17 +02:00
Dong-hee Na
906fe47083
bpo-44611: Use BCryptGenRandom instead of CryptGenRandom on Windows (GH-27168) 2021-07-23 23:04:30 +09:00
Yurii Karabas
96c4cbd96c
bpo-44353: Implement typing.NewType __call__ method in C (#27262) 
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Denis Laxalde <denis@laxalde.org>
 2021-07-22 23:06:54 +02:00
Batuhan Taskaya
fbc349ff79
bpo-43950: Distinguish errors happening on character offset decoding (GH-27217) 2021-07-20 16:42:12 +01:00
Mark Shannon
d09c134178
bpo-44645: Check for interrupts on any potentially backwards edge (GH-27216) 2021-07-19 11:10:21 +01:00
Ken Jin
f88e138a1a
bpo-20291: Fix MSVC warnings in getargs.c (GH-27211) 
* Fix MSVC warnings in getargs.c

* apply suggestions

Co-Authored-By: Batuhan Taskaya <batuhan@python.org>

Co-authored-by: Batuhan Taskaya <batuhan@python.org>
 2021-07-17 14:09:18 +03:00
Pablo Galindo Salgado
f783428a23
bpo-44655: Include the name of the type in unset __slots__ attribute errors (GH-27199) 2021-07-17 00:34:46 +01:00
Pablo Galindo Salgado
6714dec5e1
bpo-44655: Don't include suggestions for attributes that are the same as the missing one (GH-27197) 2021-07-16 21:58:21 +01:00
Pablo Galindo Salgado
c90c591e51
Revert "bpo-44645: Check for interrupts on any potentially backwards edge. (GH-27167)" (#27194) 
This reverts commit 000e70ad52.
 2021-07-16 19:05:47 +02:00
Batuhan Taskaya
9af34c9351
bpo-20201: variadic arguments support for AC (GH-18609) 
Implement support for `*args` in AC, and port `print()` to use it.
 2021-07-16 18:43:02 +03:00
Mark Shannon
000e70ad52
bpo-44645: Check for interrupts on any potentially backwards edge. (GH-27167) 2021-07-16 10:59:31 +01:00
Batuhan Taskaya
919ad53751
bpo-43950: make BinOp specializations more reliable (GH-27126) 2021-07-16 00:38:11 +01:00
Mark Shannon
a86f7dae0a
bpo-44626: Merge basic blocks earlier to enable better handling of exit blocks without line numbers (GH-27138) 2021-07-15 17:46:55 +01:00
Pablo Galindo Salgado
4cb7263f0c
Remove sys._deactivate_opcache() now that is not needed (GH-27154) 2021-07-15 14:43:59 +01:00
Mark Shannon
f333ab0f2e
bpo-44622: Set line number of END_ASYNC_FOR to match that of iterator. (GH-27160) 2021-07-15 14:37:57 +01:00
Irit Katriel
641345d636
bpo-26280: Port BINARY_SUBSCR to PEP 659 adaptive interpreter (GH-27043) 2021-07-15 13:13:12 +01:00