delta/cpython.git/Objects/frameobject.c, branch master Issue #29049: Call _PyObject_GC_TRACK() lazily when calling Python function. 2016-12-24T11:19:08+00:00 INADA Naoki songofacandy@gmail.com 2016-12-24T11:19:08+00:00 febbf471bd550945621b470089b6c3dc872ae894 Calling function is up to 5% faster. 
Calling function is up to 5% faster.
Issue #28618: Make hot functions using __attribute__((hot)) 2016-11-11T01:13:35+00:00 Victor Stinner victor.stinner@gmail.com 2016-11-11T01:13:35+00:00 18dea7d67d8b263dd8b49e1d44dcb09ca86ad08a 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() 
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()
Issue #27129: Replaced wordcode related magic constants with macros. 2016-09-11T10:48:15+00:00 Serhiy Storchaka storchaka@gmail.com 2016-09-11T10:48:15+00:00 2fdfdf47618ed421642a743b67d2616c7dae138e 






Issue #20041: Fixed TypeError when frame.f_trace is set to None.
2016-06-04T17:33:33+00:00

Serhiy Storchaka
storchaka@gmail.com

2016-06-04T17:33:33+00:00

62a8b863ccaa7e3849e41a87c7643b824006826f

Patch by Xavier de Gaye.





Patch by Xavier de Gaye.







Issue #20041: Fixed TypeError when frame.f_trace is set to None.
2016-06-04T17:32:36+00:00

Serhiy Storchaka
storchaka@gmail.com

2016-06-04T17:32:36+00:00

b052d54aac1c97929bfa2f57c62f2307e2d608b8

Patch by Xavier de Gaye.





Patch by Xavier de Gaye.







Issue #26647: Python interpreter now uses 16-bit wordcode instead of bytecode.
2016-05-24T06:15:14+00:00

Serhiy Storchaka
storchaka@gmail.com

2016-05-24T06:15:14+00:00

2e584bb8793b8c50689fa680f4cd7e64ae6bae6a

Patch by Demur Rumed.





Patch by Demur Rumed.







Issue #22570: Renamed Py_SETREF to Py_XSETREF.
2016-04-06T06:50:03+00:00

Serhiy Storchaka
storchaka@gmail.com

2016-04-06T06:50:03+00:00

6d080f12a4ea2b60d07541af6cc363e491e5aa34












Issue #22570: Renamed Py_SETREF to Py_XSETREF.
2016-04-06T06:45:48+00:00

Serhiy Storchaka
storchaka@gmail.com

2016-04-06T06:45:48+00:00

58455ad4ed5e6f1eda17ceb0dd7f5612a980e48d












co_lnotab supports negative line number delta
2016-01-20T11:16:21+00:00

Victor Stinner
victor.stinner@gmail.com

2016-01-20T11:16:21+00:00

fd429314d44df33056e2b10999b9d383a1967ee2

Issue #26107: The format of the co_lnotab attribute of code objects changes to
support negative line number delta.

Changes:

* assemble_lnotab(): if line number delta is less than -128 or greater than
  127, emit multiple (offset_delta, lineno_delta) in co_lnotab
* update functions decoding co_lnotab to use signed 8-bit integers

  - dis.findlinestarts()
  - PyCode_Addr2Line()
  - _PyCode_CheckLineNumber()
  - frame_setlineno()

* update lnotab_notes.txt
* increase importlib MAGIC_NUMBER to 3361
* document the change in What's New in Python 3.6
* cleanup also PyCode_Optimize() to use better variable names





Issue #26107: The format of the co_lnotab attribute of code objects changes to
support negative line number delta.

Changes:

* assemble_lnotab(): if line number delta is less than -128 or greater than
  127, emit multiple (offset_delta, lineno_delta) in co_lnotab
* update functions decoding co_lnotab to use signed 8-bit integers

  - dis.findlinestarts()
  - PyCode_Addr2Line()
  - _PyCode_CheckLineNumber()
  - frame_setlineno()

* update lnotab_notes.txt
* increase importlib MAGIC_NUMBER to 3361
* document the change in What's New in Python 3.6
* cleanup also PyCode_Optimize() to use better variable names







Issue #20440: Cleaning up the code by using Py_SETREF.
2016-01-05T19:27:54+00:00

Serhiy Storchaka
storchaka@gmail.com

2016-01-05T19:27:54+00:00

93c98b688bef3bf08c027315a744869b590ceef3