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1515fc2a013b01819df823a155c6c19e35b9f71a
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1934 Commits

Author SHA1 Message Date
Armin Rigo
1515fc2a01 A 2% speed improvement with gcc on low-endian machines. My guess is that this 
new pattern for NEXTARG() is detected and optimized as a single (*short)
loading.
 2004-03-20 20:03:17 +00:00
Raymond Hettinger
fba1cfc49a LIST_APPEND is predicably followed by JUMP_ABSOLUTE. 
Reduces loop overhead by an additional 10%.
 2004-03-12 16:33:17 +00:00
Raymond Hettinger
2d783e9b16 Move the code for BREAK and CONTINUE_LOOP to be near FOR_ITER. 
Makes it more likely that all loop operations are in the cache
at the same time.
 2004-03-12 09:12:22 +00:00
Raymond Hettinger
db0de9e7ca Speedup for-loops by inlining PyIter_Next(). Saves duplicate tests 
and a function call resulting in a 15% reduction of total loop overhead
(as measured by timeit.Timer('pass')).
 2004-03-12 08:41:36 +00:00
Raymond Hettinger
f114a3ae63 Refactor and optimize code for UNPACK_SEQUENCE. 
* Defer error handling for wrong number of arguments to the
  unpack_iterable() function.  Cuts the code size almost in half.

* Replace function calls to PyList_Size() and PyTuple_Size() with
  their smaller and faster macro counterparts.

* Move the constant structure references outside of the inner loops.
 2004-03-08 23:25:30 +00:00
Raymond Hettinger
dd80f76265 SF patch #910929: Optimize list comprehensions 
Add a new opcode, LIST_APPEND, and apply it to the code generation for
list comprehensions.  Reduces the per-loop overhead by about a third.
 2004-03-07 07:31:06 +00:00
Hye-Shik Chang
30e97dbe96 SF Patch #902444: Use process scope thread on FreeBSD. System scope 
is too expensive on FreeBSD's KSE threading infrastructure and
even test_threadedimport fails on default setting.
 2004-03-04 06:35:57 +00:00
Skip Montanaro
6babcc2ad4 typo 2004-03-03 08:42:23 +00:00
Skip Montanaro
786ea6bc23 Add pystack definition to Misc/gdbinit with some explanation of its behavior 
and add flag comments to ceval.c and main.c alerting people to the coupling
between pystack and the layout of those files.
 2004-03-01 15:44:05 +00:00
Michael W. Hudson
ecfeb7f095 This is my patch #876198 plus a NEWS entry and a header frob. 
Remove the ability to use (from C) arbitrary objects supporting the
read buffer interface as the co_code member of code objects.
 2004-02-12 15:28:27 +00:00
Skip Montanaro
7befb9966e remove support for missing ANSI C header files (limits.h, stddef.h, etc). 2004-02-10 16:50:21 +00:00
Raymond Hettinger
a72169871d SF patch #884022: dynamic execution profiling vs opcode prediction 
(Contributed by Andrew I MacIntyre.)

disables opcode prediction when dynamic execution
profiling is in effect, so the profiling counters at
the top of the main interpreter loop in eval_frame()
are updated for each opcode.
 2004-02-08 19:59:27 +00:00
Skip Montanaro
f1afe6682c Remove support for systems defining Py_PTHREAD_D[467] in 
Python/thread_pthread.h.
 2004-02-07 13:00:18 +00:00
Raymond Hettinger
1dd8309246 SF patch #864059: optimize eval_frame 
Simplified version of Neal Norwitz's patch which adds gotos for
opcodes that set "why".  This skips a number of tests where the
outcome of the tests are known in advance.
 2004-02-06 18:32:33 +00:00
Hye-Shik Chang
ff83c2bacc Fix input() builtin function to respect compiler flags. 
(SF patch 876178, patch by mwh, unittest by perky)
 2004-02-02 13:39:01 +00:00
Skip Montanaro
b9949dbe6c Remove support for DYNIX, IRIX 4, --with-sgi-dl, --with-dl-dld 2004-01-17 04:04:13 +00:00
Skip Montanaro
4d474becd8 remove DGUX support. 2004-01-17 00:29:32 +00:00
Raymond Hettinger
b86269db45 Apply pre-sizing optimization to a broader class of objects. 
Formerly, the length was only fetched from sequence objects.
Now, any object that reports its length can benefit from pre-sizing.
 2004-01-04 11:00:08 +00:00
Raymond Hettinger
77f3c87113 Apply map/zip pre-sizing optimization to a broader class of objects. 
Formerly, the length was only fetched from sequence objects.
Now, any object that reports its length can benefit from pre-sizing.
 2004-01-04 08:54:44 +00:00
Jeremy Hylton
ecd9129c94 Add comment to mollify Tim. 2004-01-02 23:25:32 +00:00
Hye-Shik Chang
7db07e6972 Fix gcc 3.3 warnings related to Py_UNICODE_WIDE. 2003-12-29 01:36:01 +00:00
Raymond Hettinger
64958a15d7 Guido grants a Christmas wish: 
sorted() becomes a regular function instead of a classmethod.
 2003-12-17 20:43:33 +00:00
Fred Drake
d75ede3238 Remove the PendingDeprecationWarning from apply(). apply() will 
remain deprecated in the documentation.
 2003-12-05 17:34:27 +00:00
Tim Peters
1d7323e4e7 Py_Finalize(): disabled the second call of cyclic gc, and added extensive 
comments about why both calls to cyclic gc here can cause problems.

I'll backport to 2.3 maint.  Since the calls were introduced in 2.3,
that will be the end of it.
 2003-12-01 21:35:27 +00:00
Guido van Rossum
6c9e130524 - Removed FutureWarnings related to hex/oct literals and conversions 
and left shifts.  (Thanks to Kalle Svensson for SF patch 849227.)
  This addresses most of the remaining semantic changes promised by
  PEP 237, except for repr() of a long, which still shows the trailing
  'L'.  The PEP appears to promise warnings for operations that
  changed semantics compared to Python 2.3, but this is not
  implemented; we've suffered through enough warnings related to
  hex/oct literals and I think it's best to be silent now.
 2003-11-29 23:52:13 +00:00