Message 215364 - Python tracker

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In-reply-to
Author	ronaldoussoren
Recipients	Sjlver, brett.cannon, koobs, ned.deily, ronaldoussoren, vstinner
Date	2014年04月02日.09:14:39
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1396430080.15.0.925382968571.issue21122@psf.upfronthosting.co.za>

Content
I've used -O4 for extensions in the past (which until recently implied LTO) and that worked fine. I'm pretty sure that I haven't used LTO for python itself, apart from a some tests with an early version llvm-gcc where using LTO for building python used to crash the compiler :-) BTW. There's no clear pattern in the missing symbols. The missing symbols for global functions could be due to aggressive inlining (and then deciding that the standalone function isn't needed anymore), but that is fairly unlikely and wouldn't explain the missing data symbols.

Content

I've used -O4 for extensions in the past (which until recently implied LTO) and that worked fine. 
I'm pretty sure that I haven't used LTO for python itself, apart from a some tests with an early version llvm-gcc where using LTO for building python used to crash the compiler :-)
BTW. There's no clear pattern in the missing symbols. The missing symbols for global functions could be due to aggressive inlining (and then deciding that the standalone function isn't needed anymore), but that is fairly unlikely and wouldn't explain the missing data symbols.

History
Date	User	Action	Args
2014年04月02日 09:14:40	ronaldoussoren	set	recipients: + ronaldoussoren, brett.cannon, vstinner, ned.deily, koobs, Sjlver
2014年04月02日 09:14:40	ronaldoussoren	set	messageid: <1396430080.15.0.925382968571.issue21122@psf.upfronthosting.co.za>
2014年04月02日 09:14:40	ronaldoussoren	link	issue21122 messages
2014年04月02日 09:14:39	ronaldoussoren	create

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