Commit Graph

2077 Commits

Author SHA1 Message Date
Raymond Hettinger e63a078635 Preserve sign of -0.0 when result is run through marshal. 2005-02-23 13:37:55 +00:00
Raymond Hettinger 07359a7fed Document how the pattern recognizer keeps all of its references in bounds.
Add a test in case the underlying assumptions ever change (i.e. the
compiler starts generating code blocks that are not punctuated by
RETURN_VALUE).
2005-02-21 20:03:14 +00:00
Raymond Hettinger 80121491e0 Teach the peepholer to fold unary operations on constants.
Afterwards, -0.5 loads in a single step and no longer requires a runtime
UNARY_NEGATIVE operation.
2005-02-20 12:41:32 +00:00
Raymond Hettinger b615bf0681 Remove the set conversion which didn't work with: [] in (0,) 2005-02-10 01:42:32 +00:00
Raymond Hettinger 5e547969f8 Have set conversion replace existing constant if not used elsewhere. 2005-02-09 21:24:51 +00:00
Guido van Rossum 0f1f63cf07 Close the discussion in SF bug 1069160. 2005-02-08 02:07:57 +00:00
Raymond Hettinger 7fcb7869ba Adopt Skip's idea to optimize lists of constants in the context
of a "in" or "not in" test.
2005-02-07 19:32:38 +00:00
Raymond Hettinger a164574937 Transform "x in (1,2,3)" to "x in frozenset([1,2,3])".
Inspired by Skip's idea to recognize the throw-away nature of sequences
in this context and to transform their type to one with better performance.
2005-02-06 22:05:42 +00:00
Jeremy Hylton c9add9a483 Fix bug that allowed future statements virtually anywhere in a module.
If we exit via the break here, we need to set ff_last_lineno or
FUTURE_POSSIBLE() will remain true.  The bug affected statements
containing a variety of expressions, but not all expressions.  It has
been present since Python 2.2.
2005-02-04 18:38:43 +00:00
Martin v. Löwis 13a1fde4da Partially revert #1074011; don't try to fflush stdin.
Backported to 2.3 and 2.4.
2005-01-27 18:56:16 +00:00
Raymond Hettinger 9feb267caf Do not fold a constant if a large sequence will result.
Saves space in the presence of code like: (None,)*10000
2005-01-26 12:50:05 +00:00
Anthony Baxter c560a00966 happy new year! (on the trunk) 2005-01-25 12:40:01 +00:00
Martin v. Löwis 8e3ca8af26 Flush std{in,out,err} before closing it. Fixes #1074011.
Will backport to 2.4 and 2.3.
2005-01-23 09:41:49 +00:00
Michael W. Hudson 75eabd2944 Change the name of the macro used by --with-tsc builds to the less
inscrutable READ_TIMESTAMP.
2005-01-18 15:56:11 +00:00
Michael W. Hudson 969f485cba -X died some time ago; remove a tiny bit of associated cruft. 2005-01-18 15:26:11 +00:00
Andrew MacIntyre 2bea474476 make thread stack size compile-time tunable on OS/2 2005-01-17 12:16:36 +00:00
Fred Drake d7c27bef52 remove unused variable 2005-01-12 16:00:55 +00:00
Raymond Hettinger a422c34b70 SF 1098985: set objects cannot be marshalled 2005-01-11 03:03:27 +00:00
Skip Montanaro c9a4762bd6 comment tweak 2005-01-08 21:58:58 +00:00
Armin Rigo 664b43b3f4 Re-running python with/without the -Qnew flag uses incorrectly optimized
bytecodes from the previously saved .pyc files.  Fixed by disabling the static
optimization of BINARY_DIVIDE between two constants.
2005-01-07 18:10:51 +00:00
Raymond Hettinger c34f8673a1 Teach the peephole optimizer to fold simple constant expressions. 2005-01-02 06:17:33 +00:00
Armin Rigo 2ccea17856 Any call to marshal.dumps() with the new optional argument 'version' just
immediately segfaults, due to a typo!  This was obviously never tested...
Added a test for it, and also fixed the documentation.
2004-12-20 12:25:57 +00:00
Brett Cannon 9e635cf3ae Put parentheses around the assignment in the 'while' loop conditional
expression in min_max() to shut gcc up.
2004-12-07 00:25:35 +00:00
Raymond Hettinger 3b0c7c20a1 SF patch #1077353: add key= argument to min and max
(First draft of patch contributed by Steven Bethard.)
2004-12-03 08:30:39 +00:00
Kurt B. Kaiser 4c79a83e0c Hye-Shik Chang's fix for Bug 875692.
Improve signal handling, especially when using threads, by forcing an early
re-execution of PyEval_EvalFrame() "periodic" code when things_to_do is not
cleared by Py_MakePendingCalls().

M Misc/NEWS
M Python/ceval.c
2004-11-23 18:06:08 +00:00
Tim Peters fb1ffb0ebb SF bug 1061968: threads: segfault or Py_FatalError at exit
PyGILState_Ensure():  The fix in 2.4a3 for bug 1010677 reintroduced thread
shutdown race bug 225673.  Repaired by (once again) ensuring the GIL is
held whenever deleting a thread state.

Alas, there's no useful test case for this shy bug.  Four years ago, only
Guido could provoke it, on his box, and today only Armin can provoke it
on his box.  I've never been able to provoke it (but not for lack of
trying!).

This is a critical fix for 2.3.5 too, since the fix for 1010677 got
backported there already and so also reintroduced 225673.  I don't intend to
backport this fix.  For whoever (if anyone) does, there are other thread
fixes in 2.4 that need backporting too, and I bet they need to happen first
for this patch to apply cleanly.
2004-11-08 04:30:21 +00:00
Jeremy Hylton 16b047904c SF patch 1025636: Check for NULL returns in compile.c:com_import_stmt
There is no test for this change, because there is no way to provoke memory errors on demand.  Test suite passes, though.
2004-11-07 14:04:00 +00:00
Raymond Hettinger ec6eb369d5 SF patch #1035255: Remove CoreServices / CoreFoundation dependencies in core
(Contributed by Bob Ippolito.)

This patch trims down the Python core on Darwin by making it
independent of CoreFoundation and CoreServices. It does this by:

Changed linker flags in configure/configure.in
Removed the unused PyMac_GetAppletScriptFile
Moved the implementation of PyMac_StrError to the MacOS module
Moved the implementation of PyMac_GetFullPathname to the
Carbon.File module
2004-11-05 07:02:59 +00:00
Raymond Hettinger 5dec096e6a Maintain peepholer's cumlc invariant by updating the running total
everytime a LOAD_CONSTANT is encountered, created, or overwritten.

Added two tests to cover cases affected by the patch.
2004-11-02 04:20:10 +00:00
Raymond Hettinger 099ecfbec9 Simplify and future proof NOP counting in the peepholer.
No longer assumes that the input is NOP free.
2004-11-01 15:19:11 +00:00
Armin Rigo d7bcf4deb1 Fixed a comment and added another one. 2004-10-30 21:08:59 +00:00
Raymond Hettinger effb3931ea Adopt some peepholer suggestions from Armin Rigo:
* Use simpler, faster two pass algorithm for markblocks().
* Free the blocks variable if not NULL and exiting without change.
* Verify that the rest of the compiler has not set an exception.
* Make the test for tuple of constants less restrictive.
* Embellish the comment for chained conditional jumps.
2004-10-30 08:55:08 +00:00
Raymond Hettinger 23109ef11e SF bug #1053819: Segfault in tuple_of_constants
Peepholer could be fooled into misidentifying a tuple_of_constants.
Added code to count consecutive occurrences of LOAD_CONST.
Use the count to weed out the misidentified cases.
Added a unittest.
2004-10-26 08:59:14 +00:00
Raymond Hettinger 9047c8f73d SF bug #1048870: call arg of lambda not updating 2004-10-24 00:10:06 +00:00
Anthony Baxter 9ceaa72ebe Patch #975056 - fixes for restartable signals on *BSD. In addition,
a few remaining calls to signal() were converted to PyOS_setsig().
2004-10-13 14:48:50 +00:00
Tim Peters 7f468f29f4 SF patch 1044089: New C API function PyEval_ThreadsInitialized(), by Nick
Coghlan, for determining whether PyEval_InitThreads() has been called.
Also purged the undocumented+unused _PyThread_Started int.
2004-10-11 02:40:51 +00:00
Tim Peters 89c0ec9beb Revert rev 2.35. It was based on erroneous reasoning -- the current
thread's id can't get duplicated, because (of course!) the current thread
is still running.  The code should work either way, but reverting the
gratuitous change should make backporting easier, and gets the bad
reasoning out of 2.35's new comments.
2004-10-10 05:30:40 +00:00
Tim Peters 8470558a04 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly.
This appears to finish repairs for SF bug 1041645.

This is a critical bugfix.
2004-10-10 02:47:33 +00:00
Tim Peters 263091e388 find_key(): This routine wasn't thread-correct, and accounts for the
release-build failures noted in bug 1041645.

This is a critical bugfix.  I'm not going to backport it, though (no time).
2004-10-10 01:58:44 +00:00
Tim Peters 5c14e6498a PyGILState_Release(): If we need to delete the TLS entry for this thread,
that must be done under protection of the GIL, for reasons explained in
new comments.
2004-10-09 23:55:36 +00:00
Tim Peters f9becec8cd _PyGILState_Init(), PyGILState_Ensure(): Since PyThread_set_key_value()
can fail, check its return value, and die if it does fail.

_PyGILState_Init():  Assert that the thread doesn't already have an
association for autoTLSkey.  If it does, PyThread_set_key_value() will
ignore the attempt to (re)set the association, which the code clearly
doesn't want.
2004-10-09 22:47:13 +00:00
Tim Peters fda787fcec Document the results of painful reverse-engineering of the "portable TLS"
code.

PyThread_set_key_value():  It's clear that this code assumes the passed-in
value isn't NULL, so document that it must not be, and assert that it
isn't.  It remains unclear whether existing callers want the odd semantics
actually implemented by this function.
2004-10-09 22:33:09 +00:00
Tim Peters 19717fa33a Style guide & consistency changes. No semantic changes. 2004-10-09 17:38:29 +00:00
Tim Peters 4c1f5ecfe3 Trim trailing whitespace. 2004-10-09 17:25:05 +00:00
Raymond Hettinger db29e0fe8c SF patch #1035498: -m option to run a module as a script
(Contributed by Nick Coghlan.)
2004-10-07 06:46:25 +00:00
Raymond Hettinger fb09f0e85c Finalize the freelist of list objects. 2004-10-07 03:58:07 +00:00
Martin v. Löwis 507a485984 Print verbose messages to stderr. Fixes #1036752. 2004-10-03 08:51:35 +00:00
Raymond Hettinger fec0c466ad Improve error message for augmented assignments to genexps or listcomps.
Rather than introduce new logic, took the approach of making the message
itself more general.
2004-09-29 23:54:08 +00:00
Raymond Hettinger 8ffc1410e2 Fix two erroneous error messages. 2004-09-29 21:47:10 +00:00
Raymond Hettinger 06cc973d06 Replaced a test with an assertion.
(Suggested by Michael Hudson.)
2004-09-28 17:22:12 +00:00