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1974 commits

Author SHA1 Message Date
Martin v. Löwis
8d97e33bb7 Patch #966493: Cleanup generator/eval_frame exposure. 2004-06-27 15:43:12 +00:00
Raymond Hettinger
a7f56bc0cc Get ceval.c to compile again by moving declarations before other statments. 2004-06-26 04:34:33 +00:00
Nicholas Bastin
d858a7763a Massive performance improvement for C extension and builtin tracing code 2004-06-25 23:31:06 +00:00
Raymond Hettinger
43ea47ff06 Move NOP to end of code transformation. 2004-06-24 09:25:39 +00:00
Nicholas Bastin
941b8bc41a Less ugly #ifdefs for C profiling fix 2004-06-22 15:37:51 +00:00
Nicholas Bastin
bbffbd1983 One forgotten C profiling #ifdef 2004-06-22 04:18:47 +00:00
Nicholas Bastin
4c70b69fb1 Making C profiling a configure option (at least temporarily) 2004-06-22 03:51:38 +00:00
Raymond Hettinger
9c18e81fb2 Install two code generation optimizations that depend on NOP. 
Reduces the cost of "not" to almost zero.
 2004-06-21 16:31:15 +00:00
Armin Rigo
8817fcdba5 Performance tweak: allow stack_pointer and oparg to be register variables. 
SF patch #943898
 2004-06-17 10:22:40 +00:00
Neal Norwitz
0f5aed4e41 Remove compiler warning 2004-06-13 20:32:17 +00:00
Neal Norwitz
d85c452604 Make private function static 2004-06-13 20:31:49 +00:00
Martin v. Löwis
737ea82a5a Patch #774665: Make Python LC_NUMERIC agnostic. 2004-06-08 18:52:54 +00:00
Martin v. Löwis
f30d60edbc Patch #510695: Add TSC profiling for the VM. 2004-06-08 08:17:44 +00:00
Thomas Heller
25653242fe Fix a refcount bug in an obscure code corner. 
Already backported.
 2004-06-07 15:04:10 +00:00
Raymond Hettinger
f2c0830585 SF bug #963956: Bad error mesage when subclassing a module 
Add a more informative message for the common user mistake of subclassing
from a module name rather than another class (i.e. random instead of
random.random).
 2004-06-05 06:16:22 +00:00
Martin v. Löwis
e440e47e91 Patch #957398: Add public API for Generator Object/Type. 2004-06-01 15:22:42 +00:00
Fred Drake
8759090562 starting to add comments to explain what's here 2004-05-28 20:21:36 +00:00
Raymond Hettinger
354433a59d SF patch #872326: Generator expression implementation 
(Code contributed by Jiwon Seo.)

The documentation portion of the patch is being re-worked and will be
checked-in soon.  Likewise, PEP 289 will be updated to reflect Guido's
rationale for the design decisions on binding behavior (as described in
in his patch comments and in discussions on python-dev).

The test file, test_genexps.py, is written in doctest format and is
meant to exercise all aspects of the the patch.  Further additions are
welcome from everyone.  Please stress test this new feature as much as
possible before the alpha release.
 2004-05-19 08:20:33 +00:00
Anthony Baxter
c3d931685b forward-port 1.17.12.1 2004-05-13 11:54:19 +00:00
Raymond Hettinger
c8aa08b172 Some (but not all) of the why code bitfield tests ran faster as 
separate equality tests.  Now, all are set to their best timing.
 2004-04-11 14:59:33 +00:00
Raymond Hettinger
5bed456056 Revert 2.393, elimination of pre-decrementing, which 
did not stand-up to additional timings.
 2004-04-10 23:34:17 +00:00
Raymond Hettinger
7eddd78a15 Use continue instead of break whereever possible. 2004-04-07 14:38:08 +00:00
Raymond Hettinger
d3b836d202 * Improve readability and remove data dependencies by converting 
pre-increment forms to post-increment forms.  Post-incrementing
also eliminates the need for negative array indices for oparg fetches.

* In exception handling code, check for class based exceptions before
  the older string based exceptions.
 2004-04-07 13:17:27 +00:00
Raymond Hettinger
467a698bd2 Small code improvements for readability, code size, and/or speed. 
BINARY_SUBSCR:
    * invert test for normal case fall through
    * eliminate err handling code by jumping to slow_case

LOAD_LOCALS:
    * invert test for normal case fall through
    * continue instead of break for the non-error case

STORE_NAME and DELETE_NAME:
    * invert test for normal case fall through

LOAD_NAME:
    * continue instead of break for the non-error case

DELETE_FAST:
    * invert test for normal case fall through

LOAD_DEREF:
    * invert test for normal case fall through
    * continue instead of break for the non-error case
 2004-04-07 11:39:21 +00:00
Raymond Hettinger
7c9586545e Simplify previous checkin (bitfields for WHY codes). 
Restores the self-documenting enum declaration.
 2004-04-06 10:11:10 +00:00
Raymond Hettinger
06032cb664 Coded WHY flags as bitfields (taking inspiration from tp_flags). 
This allows multiple flags to be tested in a single compare
which eliminates unnecessary compares and saves a few bytes.
 2004-04-06 09:37:35 +00:00
Tim Peters
8a5c3c76be Since the fast_yield branch target was introduced, it appears that most 
tests of "why" against WHY_YIELD became useless.  This patch removes them,
but assert()s that why != WHY_YIELD everywhere such a test was removed.
The test suite ran fine under a debug build (i.e., the asserts never
triggered).
 2004-04-05 19:36:21 +00:00
Jeremy Hylton
d4ceb31664 Bump the magic number to avoid sharing bytecode between 2.3 and 2.4. 
Revise the long comment that explained details of the magic number
in gory detail.
 2004-04-01 02:45:22 +00:00
Andrew MacIntyre
da4d6cb573 OS/2 VACPP build updates/fixes 2004-03-29 11:53:38 +00:00
Armin Rigo
01ab279056 Marshal clean-up (SF patch #873224) 2004-03-26 15:09:27 +00:00
Nicholas Bastin
2786d90617 A few more PyThreadState_Get to PyThreadState_GET conversions 2004-03-25 02:16:23 +00:00
Nicholas Bastin
e5662aedef Changed random calls to PyThreadState_Get() to use the macro 2004-03-24 22:22:12 +00:00
Nicholas Bastin
c69ebe8d50 Enable the profiling of C functions (builtins and extensions) 2004-03-24 21:57:10 +00:00
Martin v. Löwis
83969eeeeb Decref all if ensure_fromlist fails. Fixes #876533. 
Backported to 2.3.
 2004-03-23 16:28:13 +00:00
Armin Rigo
5d2c68359b Lost reference. 2004-03-22 20:16:58 +00:00
Armin Rigo
bf57a14522 Fix SF bug #765624. 2004-03-22 19:24:58 +00:00
Armin Rigo
80d937e986 Fix for line events in the case: 
def f(a):
    if a:
      print 5
    else:
      pass
 2004-03-22 17:52:53 +00:00
Nicholas Bastin
a7604bf1b4 Moved tracebackobject to traceback.h, Closes SF Bug #497067 2004-03-21 18:37:23 +00:00
Raymond Hettinger
ff5bc50bb0 Improve byte coding for multiple assignments. 
Gives 30% speedup on "a,b=1,2" and 25% on "a,b,c=1,2,3".
 2004-03-21 15:12:00 +00:00
Armin Rigo
9dbf9084e8 Cancelled checkin, sorry. 2004-03-20 21:50:13 +00:00
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