Author vstinner
Recipients Jeremy.Hylton, Trundle, alex, benjamin.peterson, brett.cannon, daniel.urban, dmalcolm, eltoder, eric.snow, georg.brandl, gregory.p.smith, jcon, mark.dickinson, meador.inge, nadeem.vawda, ncoghlan, pitrou, rhettinger, santoso.wijaya, techtonik, terry.reedy, vstinner
Date 2012-09-06.00:40:49
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> Any stdlib AST optimiser would need to be substantially more conservative by default.

FYI The test suite of Python 2.7 and 3.3 pass with astoptimizer... except some "minor" (?) failures:

 * test_math fails for the reason explained above
 * test_pdb: it looks to be an issue with line number (debuggers don't like optimizers :-))
 * test_xml_etree and test_xml_etree_c: reference count of the None singleton

The test suite helped me to find bugs in my optimizer :-)

I also had to add some hacks (hasattr) for test_ast (test_ast generates invalid AST trees). The configuration should also be adapted for test_peepholer, because CPython peepholer uses a limit of 20 items, whereas astoptimizer uses a limit of 4096 bytes/characters for string by default. All these minor nits are now handled in a specific "cpython_tests" config.
Date User Action Args
2012-09-06 00:40:50vstinnersetrecipients: + vstinner, brett.cannon, georg.brandl, rhettinger, terry.reedy, gregory.p.smith, mark.dickinson, ncoghlan, pitrou, techtonik, nadeem.vawda, benjamin.peterson, alex, Trundle, dmalcolm, meador.inge, daniel.urban, Jeremy.Hylton, santoso.wijaya, eltoder, eric.snow, jcon
2012-09-06 00:40:50vstinnersetmessageid: <>
2012-09-06 00:40:49vstinnerlinkissue11549 messages
2012-09-06 00:40:49vstinnercreate