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Author SHA1 Message Date
Raymond Hettinger
b2b154374d merge 2016-11-11 04:32:11 -08:00
Raymond Hettinger
13527123a1 Issue #28665: Harmonize STORE_DEREF with STORE_FAST and LOAD_DEREF giving a 40% speedup. 2016-11-11 04:31:18 -08:00
Victor Stinner
c6944e7edc Issue #28618: Make hot functions using __attribute__((hot)) 
When Python is not compiled with PGO, the performance of Python on call_simple
and call_method microbenchmarks depend highly on the code placement. In the
worst case, the performance slowdown can be up to 70%.

The GCC __attribute__((hot)) attribute helps to keep hot code close to reduce
the risk of such major slowdown. This attribute is ignored when Python is
compiled with PGO.

The following functions are considered as hot according to statistics collected
by perf record/perf report:

* _PyEval_EvalFrameDefault()
* call_function()
* _PyFunction_FastCall()
* PyFrame_New()
* frame_dealloc()
* PyErr_Occurred()
 2016-11-11 02:13:35 +01:00
Victor Stinner
0cae609847 Use PyThreadState_GET() in performance critical code 
It seems like _PyThreadState_UncheckedGet() is not inlined as expected, even
when using gcc -O3.
 2016-11-11 01:43:56 +01:00
Yury Selivanov
228722ad20 Merge 3.6 (issue #26182) 2016-11-08 16:54:39 -05:00
Yury Selivanov
1a9d687a49 Issue #26182: Fix ia refleak in code that raises DeprecationWarning. 2016-11-08 16:54:18 -05:00
Serhiy Storchaka
818b5cc6db Fixed possible abort in ceval loop if _PyUnicode_FromId() fails. 
Every opcode should end with DISPATCH() or goto error.
 2016-11-08 23:14:00 +02:00
Serhiy Storchaka
4678b2f448 Fixed possible abort in ceval loop if _PyUnicode_FromId() fails. 
Every opcode should end with DISPATCH() or goto error.
 2016-11-08 23:13:36 +02:00
Serhiy Storchaka
70b72f0f96 Fixed possible abort in ceval loop if _PyUnicode_FromId() fails. 
Every opcode should end with DISPATCH() or goto error.
 2016-11-08 23:12:46 +02:00
Yury Selivanov
0ee446c894 Merge 3.6 (issue #27243) 2016-11-08 15:15:42 -05:00
Yury Selivanov
2edd8a1e2c Issue #27243: Change PendingDeprecationWarning -> DeprecationWarning. 
As it was agreed in the issue, __aiter__ returning an awaitable
should result in PendingDeprecationWarning in 3.5 and in
DeprecationWarning in 3.6.
 2016-11-08 15:13:07 -05:00
Eric V. Smith
9a8e569865 Merge from 3.6. 2016-11-07 17:57:48 -05:00
Eric V. Smith
9b88fdf4f0 Fixed issue #28633: segfault when concatenating bytes literal and f-string. 2016-11-07 17:54:01 -05:00
Ned Deily
7d76c906f7 Issue #28616: merge from 3.5 2016-11-04 17:07:06 -04:00
Ned Deily
da4887a88d Issue #28616: Correct help for sys.version_info releaselevel component. 
Patch by Anish Tambe.
 2016-11-04 17:03:34 -04:00
Eric V. Smith
5646648678 Issue 28128: Print out better error/warning messages for invalid string escapes. Backport to 3.6. 2016-10-31 14:46:26 -04:00
Ned Deily
e37c1cbf66 Issue #28616: merge from 3.6 2016-11-04 17:07:47 -04:00
Eric V. Smith
42454af094 Issue 28128: Print out better error/warning messages for invalid string escapes. 2016-10-31 09:22:08 -04:00
Serhiy Storchaka
42bcbf76f7 Issue #28517: Fixed of-by-one error in the peephole optimizer that caused 
keeping unreachable code.
 2016-10-25 09:32:04 +03:00
Serhiy Storchaka
7db3c48833 Issue #28517: Fixed of-by-one error in the peephole optimizer that caused 
keeping unreachable code.
 2016-10-25 09:30:43 +03:00
Serhiy Storchaka
cb33a01bbc Issue #28510: Clean up decoding error handlers. 
Since PyUnicodeDecodeError_GetObject() always returns bytes, following
PyBytes_AsString() can be replaced with PyBytes_AS_STRING().
 2016-10-23 09:44:50 +03:00
Serhiy Storchaka
14ab277632 Issue #28410: Added _PyErr_FormatFromCause() -- the helper for raising 
new exception with setting current exception as __cause__.

_PyErr_FormatFromCause(exception, format, args...) is equivalent to Python

    raise exception(format % args) from sys.exc_info()[1]
 2016-10-21 17:10:42 +03:00
Serhiy Storchaka
467ab194fc Issue #28410: Added _PyErr_FormatFromCause() -- the helper for raising 
new exception with setting current exception as __cause__.

_PyErr_FormatFromCause(exception, format, args...) is equivalent to Python

    raise exception(format % args) from sys.exc_info()[1]
 2016-10-21 17:09:17 +03:00
Serhiy Storchaka
c4189a04a8 Issue #28410: Keep the traceback of original exception in _PyErr_ChainExceptions(). 2016-10-21 16:21:02 +03:00
Serhiy Storchaka
b0426cd8c4 Issue #28410: Keep the traceback of original exception in _PyErr_ChainExceptions(). 2016-10-21 16:20:43 +03:00
Serhiy Storchaka
9e373be1bc Issue #28410: Keep the traceback of original exception in _PyErr_ChainExceptions(). 2016-10-21 16:19:59 +03:00
Benjamin Peterson
a2bc46da14 merge 3.6 2016-10-20 22:39:39 -07:00
Benjamin Peterson
4510e6de9d mark dtrace stubs as static inline; remove stubs 
C99 inline semantics don't work everywhere. (https://bugs.python.org/issue28092)
We don't want these to have external visibility anyway.
 2016-10-20 22:37:00 -07:00
Victor Stinner
d65f42a132 Issue #21955: Please don't try to optimize int+int 2016-10-20 12:18:10 +02:00
Serhiy Storchaka
60c838b27c Issue #23782: Fixed possible memory leak in _PyTraceback_Add() and exception 
loss in PyTraceBack_Here().
 2016-10-18 13:27:54 +03:00
Serhiy Storchaka
df0fd74ae8 Issue #23782: Fixed possible memory leak in _PyTraceback_Add() and exception 
loss in PyTraceBack_Here().
 2016-10-18 13:26:25 +03:00
Serhiy Storchaka
04eb777279 Issue #23782: Fixed possible memory leak in _PyTraceback_Add() and exception 
loss in PyTraceBack_Here().
 2016-10-18 13:23:18 +03:00
Raymond Hettinger
4186222e63 Minor fix-up to apply the stack adjustment macros consistent with the other opcodes 2016-10-15 19:03:06 -07:00
Serhiy Storchaka
5665301bae Issue #28257: Improved error message when pass a non-mapping as a var-keyword 
argument.
 2016-10-07 23:32:41 +03:00
Serhiy Storchaka
579de19228 Issue #24098: Fixed possible crash when AST is changed in process of 
compiling it.
 2016-10-07 21:56:24 +03:00
Serhiy Storchaka
5e80855af3 Issue #24098: Fixed possible crash when AST is changed in process of 
compiling it.
 2016-10-07 21:55:49 +03:00
Serhiy Storchaka
cf3806026b Issue #24098: Fixed possible crash when AST is changed in process of 
compiling it.
 2016-10-07 21:51:28 +03:00
Berker Peksag
419968c235 Issue #27358: Merge from 3.6 2016-10-02 13:08:47 +03:00
Berker Peksag
8e9045d0d8 Issue #27358: Fix typo in error message 2016-10-02 13:08:25 +03:00
Serhiy Storchaka
2e84de3638 Issue #27358: Optimized merging var-keyword arguments and improved error 
message when pass a non-mapping as a var-keyword argument.
 2016-10-02 11:07:29 +03:00
Serhiy Storchaka
e036ef8fa2 Issue #27358: Optimized merging var-keyword arguments and improved error 
message when pass a non-mapping as a var-keyword argument.
 2016-10-02 11:06:43 +03:00
Serhiy Storchaka
775a0ea0da Issue #28257: Improved error message when pass a non-iterable as 
a var-positional argument.  Added opcode BUILD_TUPLE_UNPACK_WITH_CALL.
 2016-10-02 10:34:46 +03:00
Serhiy Storchaka
7344285c19 Issue #28257: Improved error message when pass a non-iterable as 
a var-positional argument.  Added opcode BUILD_TUPLE_UNPACK_WITH_CALL.
 2016-10-02 10:33:46 +03:00
Serhiy Storchaka
be9cddb302 Issue #27942: String constants now interned recursively in tuples and frozensets. 2016-09-30 10:36:15 +03:00
Serhiy Storchaka
3738c2d8ae Issue #27942: String constants now interned recursively in tuples and frozensets. 2016-09-30 10:23:01 +03:00
Serhiy Storchaka
00a0fc1144 Issue #27942: String constants now interned recursively in tuples and frozensets. 2016-09-30 10:07:26 +03:00
Alexander Belopolsky
3e7a3cb903 Issue #28148: Stop using localtime() and gmtime() in the time module. 
Introduced platform independent _PyTime_localtime API that is similar
to POSIX localtime_r, but available on all platforms.  Patch by Ed
Schouten.
 2016-09-28 17:31:35 -04:00
Alexander Belopolsky
9f518cd01a Merged from 3.6 2016-09-28 17:32:31 -04:00
Serhiy Storchaka
c019158a4c Issue #27703: Got rid of unnecessary NULL checks in do_raise() in release mode. 
Patch by Xiang Zhang.
 2016-09-27 11:37:10 +03:00
Christian Heimes
517507c6d5 Issue #28100: Refactor error messages, patch by Ivan Levkivskyi 2016-09-23 20:26:30 +02:00