cpython

Commit Graph

Author	SHA1	Message	Date
INADA Naoki	87010e85cb	bpo-29469: peephole: Remove const_stack (GH-4879) Constant folding was moved to AST optimizer. But compiler may emit LOAD_CONSTs + BUILD_TUPLE. For example, default arguments can be constant tuple if all arguments are constant. This commit makes peephole's tuple folding simple. It doesn't support nested tuples because nested tuples are folded by AST optimizer already.	8 years ago
Serhiy Storchaka	15a8728415	bpo-29469: Optimize literal lists and sets iterating on the AST level. (#4866 )	8 years ago
INADA Naoki	eadad1b97f	bpo-29469: Remove unnecessary peephole optimizer (GH-4863) Conversions like `not a is b -> a is not b` are implemented in AST optimizer in previous commit (`7ea143a`). So this commit removes them from peephole optimizer.	8 years ago
INADA Naoki	7ea143ae79	bpo-29469: Move constant folding to AST optimizer (GH-2858)	8 years ago
Serhiy Storchaka	36ff451eba	bpo-30501: Make the compiler producing optimized code for condition expressions. (#1851 )	9 years ago
Serhiy Storchaka	7db3c48833	Issue #28517 : Fixed of-by-one error in the peephole optimizer that caused keeping unreachable code.	9 years ago
Serhiy Storchaka	a1e9ab34a9	Fixed refactoring bug in dd046963bd42 (issue27129).	9 years ago
Serhiy Storchaka	ab8740058a	Issue #27129 : Replaced wordcode related magic constants with macros.	9 years ago
Raymond Hettinger	08eef3ff49	Re-linewrap comments	10 years ago
Martin Panter	46f50726a0	Issue #27076 : Doc, comment and tests spelling fixes Most fixes to Doc/ and Lib/ directories by Ville Skyttä.	10 years ago
Serhiy Storchaka	b0f80b0312	Issue #26647 : Python interpreter now uses 16-bit wordcode instead of bytecode. Patch by Demur Rumed.	10 years ago
Victor Stinner	f3914eb16d	co_lnotab supports negative line number delta 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	10 years ago
Serhiy Storchaka	576f132b98	Issue #20440 : Cleaning up the code by using Py_SETREF.	10 years ago
Yury Selivanov	7544508f02	PEP 0492 -- Coroutines with async and await syntax. Issue #24017 .	11 years ago
Serhiy Storchaka	67559bf8f1	Issue #23450 : Silenced compiler warnings and added asserts in peephole optimizer.	11 years ago
Serhiy Storchaka	1a1ff29659	Issue #23446 : Use PyMem_New instead of PyMem_Malloc to avoid possible integer overflows. Added few missed PyErr_NoMemory().	11 years ago
Victor Stinner	c82729e44f	Issue #19437 : Fix fold_unaryops_on_constants() of the peephole optimizer, clear the exception when PyList_Append() fails	12 years ago
Victor Stinner	e0af3a802a	Issue #18408 : Fix PyCode_Optimize(): raise a MemoryError on memory allocation failure.	13 years ago
Benjamin Peterson	442f20996d	create NameConstant AST class for None, True, and False literals (closes #16619 )	13 years ago
Ezio Melotti	6c5f5210be	#5057 : the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds.	13 years ago
Ezio Melotti	c18cc0edff	#5057 : the peepholer no longer optimizes subscription on unicode literals (e.g. u"foo"[0]) in order to produce compatible pyc files between narrow and wide builds.	13 years ago
Raymond Hettinger	dee8af225b	Fix whitespace	14 years ago
Martin v. Löwis	ed11a5d018	Issue #8767 : Restore building with --disable-unicode. Original patch by Stefano Taschini.	14 years ago
Martin v. Löwis	d63a3b8beb	Implement PEP 393.	15 years ago
Stefan Krah	472d280d8b	Issue #13002 : Fix Visual Studio warning (not enough actual parameters).	15 years ago
Ezio Melotti	2df6a93916	Issue #5057 : fix a bug in the peepholer that led to non-portable pyc files between narrow and wide builds while optimizing BINARY_SUBSCR on non-BMP chars (e.g. "\U00012345"[0]).	15 years ago
Ezio Melotti	c283a85e12	Issue #5057 : fix a bug in the peepholer that led to non-portable pyc files between narrow and wide builds while optimizing BINARY_SUBSCR on non-BMP chars (e.g. u"\U00012345"[0]).	15 years ago
Mark Dickinson	7c9e803284	Issue #11244 : Remove outdated peepholer check that was preventing the peepholer from folding -0 and -0.0. Thanks Eugene Toder for the patch.	15 years ago
Raymond Hettinger	29dcaad6eb	Issue 11510: Fix BUILD_SET optimizer bug.	15 years ago
Raymond Hettinger	0661e91fed	Issue 11510: Fix BUILD_SET optimizer bug.	15 years ago
Antoine Pitrou	17b880a5d6	Issue #11244 : The peephole optimizer is now able to constant-fold arbitrarily complex expressions. This also fixes a 3.2 regression where operations involving negative numbers were not constant-folded.	15 years ago
Georg Brandl	e5b99f0fb3	Remove redundant includes of headers that are already included by Python.h.	15 years ago
Raymond Hettinger	819a064556	Issue 8403: Don't mask KeyboardInterrupt during peephole operation.	16 years ago
Antoine Pitrou	7f14f0d8a0	Recorded merge of revisions 81032 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/py3k ................ r81032 \| antoine.pitrou \| 2010-05-09 17:52:27 +0200 (dim., 09 mai 2010) \| 9 lines Recorded merge of revisions 81029 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r81029 \| antoine.pitrou \| 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) \| 3 lines Untabify C files. Will watch buildbots. ........ ................	16 years ago
Antoine Pitrou	f95a1b3c53	Recorded merge of revisions 81029 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r81029 \| antoine.pitrou \| 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) \| 3 lines Untabify C files. Will watch buildbots. ........	16 years ago
Antoine Pitrou	c7c96a90bc	Recorded merge of revisions 81029 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r81029 \| antoine.pitrou \| 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) \| 3 lines Untabify C files. Will watch buildbots. ........	16 years ago
Antoine Pitrou	c83ea137d7	Untabify C files. Will watch buildbots.	16 years ago
Antoine Pitrou	b7fbcd396f	Issue #6690 : Optimize the bytecode for expressions such as `x in {1, 2, 3}`, where the right hand operand is a set of constants, by turning the set into a frozenset and pre-building it as a constant. The comparison operation is made against the constant instead of building a new set each time it is executed (a similar optimization already existed which turned a list of constants into a pre-built tuple). Patch and additional tests by Dave Malcolm.	16 years ago
Georg Brandl	f004d9dc84	Merged revisions 73206,73232,73299,73683,74020,74185,74544,74643,74647,74817,74838-74839,74865,74946,75402,75459,75604,75696 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r73206 \| georg.brandl \| 2009-06-04 11:15:12 +0200 (Do, 04 Jun 2009) \| 1 line #3584: ignore trailing newlines when placing the caret for a SyntaxError location. ........ r73232 \| georg.brandl \| 2009-06-04 20:59:58 +0200 (Do, 04 Jun 2009) \| 1 line Add test for #3684. ........ r73299 \| georg.brandl \| 2009-06-08 20:41:36 +0200 (Mo, 08 Jun 2009) \| 1 line Typo fix. ........ r73683 \| georg.brandl \| 2009-06-29 16:44:49 +0200 (Mo, 29 Jun 2009) \| 1 line Fix error handling in PyCode_Optimize, by Alexander Schremmer at EuroPython sprint. ........ r74020 \| georg.brandl \| 2009-07-16 09:18:07 +0200 (Do, 16 Jul 2009) \| 1 line #5910: fix kqueue for calls with more than one event. ........ r74185 \| georg.brandl \| 2009-07-23 11:17:09 +0200 (Do, 23 Jul 2009) \| 1 line Fix the "pylocals" gdb command. ........ r74544 \| georg.brandl \| 2009-08-24 19:12:30 +0200 (Mo, 24 Aug 2009) \| 1 line #6775: fix python.org URLs in README. ........ r74643 \| georg.brandl \| 2009-09-04 08:59:20 +0200 (Fr, 04 Sep 2009) \| 2 lines Issue #2666: Handle BROWSER environment variable properly for unknown browser names in the webbrowser module. ........ r74647 \| georg.brandl \| 2009-09-04 10:17:04 +0200 (Fr, 04 Sep 2009) \| 2 lines Issue #5275: In Cookie's Cookie.load(), properly handle non-string arguments as documented. ........ r74817 \| georg.brandl \| 2009-09-16 11:05:11 +0200 (Mi, 16 Sep 2009) \| 1 line Make deprecation notices as visible as warnings are right now. ........ r74838 \| georg.brandl \| 2009-09-16 18:22:12 +0200 (Mi, 16 Sep 2009) \| 1 line Remove some more boilerplate from the actual tests in test_pdb. ........ r74839 \| georg.brandl \| 2009-09-16 18:36:39 +0200 (Mi, 16 Sep 2009) \| 1 line Make the pdb displayhook compatible with the standard displayhook: do not print Nones. Add a test for that. ........ r74865 \| georg.brandl \| 2009-09-17 09:49:37 +0200 (Do, 17 Sep 2009) \| 1 line #6912: add "with" block support to pindent. ........ r74946 \| georg.brandl \| 2009-09-19 10:43:16 +0200 (Sa, 19 Sep 2009) \| 1 line Update bug tracker reference. ........ r75402 \| georg.brandl \| 2009-10-14 17:51:48 +0200 (Mi, 14 Okt 2009) \| 1 line #7125: fix typo. ........ r75459 \| georg.brandl \| 2009-10-17 10:57:43 +0200 (Sa, 17 Okt 2009) \| 1 line Fix refleaks in _ctypes PyCSimpleType_New, which fixes the refleak seen in test___all__. ........ r75604 \| georg.brandl \| 2009-10-22 13:36:50 +0200 (Do, 22 Okt 2009) \| 1 line Fix stylesheet for multi-paragraph impl-details. ........ r75696 \| georg.brandl \| 2009-10-25 21:25:43 +0100 (So, 25 Okt 2009) \| 1 line Fix a demo. ........	16 years ago
Raymond Hettinger	af7adad51d	Peephole constant folding had missed UNARY_POSITIVE.	16 years ago
Georg Brandl	194da4a7da	Merged revisions 74126,74130-74131,74149,74155,74157,74180-74183,74398 via svnmerge from svn+ssh://svn.python.org/python/branches/py3k ................ r74126 \| alexandre.vassalotti \| 2009-07-21 02:39:03 +0200 (Di, 21 Jul 2009) \| 14 lines Merged revisions 73871 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r73871 \| alexandre.vassalotti \| 2009-07-06 22:17:30 -0400 (Mon, 06 Jul 2009) \| 7 lines Grow the allocated buffer in PyUnicode_EncodeUTF7 to avoid buffer overrun. Without this change, test_unicode.UnicodeTest.test_codecs_utf7 crashes in debug mode. What happens is the unicode string u'\U000abcde' with a length of 1 encodes to the string '+2m/c3g-' of length 8. Since only 5 bytes is reserved in the buffer, a buffer overrun occurs. ........ ................ r74130 \| alexandre.vassalotti \| 2009-07-21 02:57:50 +0200 (Di, 21 Jul 2009) \| 2 lines Add ignore rule for the Doc/tools/jinga2/ directory. ................ r74131 \| alexandre.vassalotti \| 2009-07-21 04:51:58 +0200 (Di, 21 Jul 2009) \| 13 lines Merged revisions 73683,73786 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r73683 \| georg.brandl \| 2009-06-29 10:44:49 -0400 (Mon, 29 Jun 2009) \| 1 line Fix error handling in PyCode_Optimize, by Alexander Schremmer at EuroPython sprint. ........ r73786 \| benjamin.peterson \| 2009-07-02 18:56:16 -0400 (Thu, 02 Jul 2009) \| 1 line condense with assertRaises ........ ................ r74149 \| ezio.melotti \| 2009-07-21 22:37:52 +0200 (Di, 21 Jul 2009) \| 9 lines Merged revisions 74148 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r74148 \| ezio.melotti \| 2009-07-21 23:18:27 +0300 (Tue, 21 Jul 2009) \| 1 line #6536 fixed typo ........ ................ r74155 \| alexandre.vassalotti \| 2009-07-22 04:24:49 +0200 (Mi, 22 Jul 2009) \| 2 lines Issue #6242: Fix deallocator of io.StringIO and io.BytesIO. ................ r74157 \| alexandre.vassalotti \| 2009-07-22 05:07:33 +0200 (Mi, 22 Jul 2009) \| 2 lines Issue #6241: Better type checking for the arguments of io.StringIO. ................ r74180 \| ezio.melotti \| 2009-07-22 23:17:14 +0200 (Mi, 22 Jul 2009) \| 9 lines Merged revisions 74179 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r74179 \| ezio.melotti \| 2009-07-23 00:08:49 +0300 (Thu, 23 Jul 2009) \| 1 line #6423 has_key -> in ........ ................ r74181 \| alexandre.vassalotti \| 2009-07-22 23:27:53 +0200 (Mi, 22 Jul 2009) \| 6 lines Clean up test_curses. By using __stdout__ directly, test_curses caused regrtest.py to duplicate the output of some test results. ................ r74182 \| alexandre.vassalotti \| 2009-07-22 23:29:01 +0200 (Mi, 22 Jul 2009) \| 2 lines Use assertGreater instead of assertTrue(x > y). ................ r74183 \| alexandre.vassalotti \| 2009-07-23 01:27:17 +0200 (Do, 23 Jul 2009) \| 4 lines Specialize assertTrue checks when possible. We should get slightly more helpful failure messages with this change. ................ r74398 \| georg.brandl \| 2009-08-13 11:16:39 +0200 (Do, 13 Aug 2009) \| 1 line #6694: fix old function names. ................	17 years ago
Alexandre Vassalotti	6f82818652	Merged revisions 73683,73786 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r73683 \| georg.brandl \| 2009-06-29 10:44:49 -0400 (Mon, 29 Jun 2009) \| 1 line Fix error handling in PyCode_Optimize, by Alexander Schremmer at EuroPython sprint. ........ r73786 \| benjamin.peterson \| 2009-07-02 18:56:16 -0400 (Thu, 02 Jul 2009) \| 1 line condense with assertRaises ........	17 years ago
Georg Brandl	e323e0e91a	Fix error handling in PyCode_Optimize, by Alexander Schremmer at EuroPython sprint.	17 years ago
Benjamin Peterson	876b2f286b	Merged revisions 72912,72920,72940 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r72912 \| benjamin.peterson \| 2009-05-25 08:13:44 -0500 (Mon, 25 May 2009) \| 5 lines add a SETUP_WITH opcode It speeds up the with statement and correctly looks up the special methods involved. ........ r72920 \| benjamin.peterson \| 2009-05-25 15:12:57 -0500 (Mon, 25 May 2009) \| 1 line take into account the fact that SETUP_WITH pushes a finally block ........ r72940 \| benjamin.peterson \| 2009-05-26 07:49:59 -0500 (Tue, 26 May 2009) \| 1 line teach the peepholer about SETUP_WITH ........	17 years ago
Benjamin Peterson	aafa18aa05	teach the peepholer about SETUP_WITH	17 years ago
Jeffrey Yasskin	4dd40525e6	Fix 2 oversights from r69961.	17 years ago
Jeffrey Yasskin	68d6852006	Backport r69961 to trunk, replacing JUMP_IF_{TRUE,FALSE} with POP_JUMP_IF_{TRUE,FALSE} and JUMP_IF_{TRUE,FALSE}_OR_POP. This avoids executing a POP_TOP on each conditional and sometimes allows the peephole optimizer to skip a JUMP_ABSOLUTE entirely. It speeds up list comprehensions significantly.	17 years ago
Jeffrey Yasskin	9de7ec7868	http://bugs.python.org/issue4715 This patch by Antoine Pitrou optimizes the bytecode for conditional branches by merging the following "POP_TOP" instruction into the conditional jump. For example, the list comprehension "[x for x in l if not x]" produced the following bytecode: 1 0 BUILD_LIST 0 3 LOAD_FAST 0 (.0) >> 6 FOR_ITER 23 (to 32) 9 STORE_FAST 1 (x) 12 LOAD_FAST 1 (x) 15 JUMP_IF_TRUE 10 (to 28) 18 POP_TOP 19 LOAD_FAST 1 (x) 22 LIST_APPEND 2 25 JUMP_ABSOLUTE 6 >> 28 POP_TOP 29 JUMP_ABSOLUTE 6 >> 32 RETURN_VALUE but after the patch it produces the following bytecode: 1 0 BUILD_LIST 0 3 LOAD_FAST 0 (.0) >> 6 FOR_ITER 18 (to 27) 9 STORE_FAST 1 (x) 12 LOAD_FAST 1 (x) 15 POP_JUMP_IF_TRUE 6 18 LOAD_FAST 1 (x) 21 LIST_APPEND 2 24 JUMP_ABSOLUTE 6 >> 27 RETURN_VALUE Notice that not only the code is shorter, but the conditional jump (POP_JUMP_IF_TRUE) jumps right to the start of the loop instead of going through the JUMP_ABSOLUTE at the end. "continue" statements are helped similarly. Furthermore, the old jump opcodes (JUMP_IF_FALSE, JUMP_IF_TRUE) have been replaced by two new opcodes: - JUMP_IF_TRUE_OR_POP, which jumps if true and pops otherwise - JUMP_IF_FALSE_OR_POP, which jumps if false and pops otherwise	17 years ago
Raymond Hettinger	e56131b60e	Issue 2260: Small peephole optimization -- eliminate unnecessary POP_TOP /JUMP_FORWARD 1 pairs.	17 years ago
Marc-André Lemburg	4cc0f24857	Rename PyUnicode_AsString -> _PyUnicode_AsString and PyUnicode_AsStringAndSize -> _PyUnicode_AsStringAndSize to mark them for interpreter internal use only. We'll have to rework these APIs or create new ones for the purpose of accessing the UTF-8 representation of Unicode objects for 3.1.	18 years ago

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53 Commits (db8189bb8db609ca3993dec31fb95fdbe134469a)