Message 340331 - Python tracker

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In-reply-to
Author	vstinner
Recipients	benjamin.peterson, fweimer, gregory.p.smith, methane, nascheme, pitrou, skrah, tgrigg, twouters, vstinner
Date	2019年04月16日.10:20:56
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1555410056.85.0.30702477069.issue27987@roundup.psfhosted.org>

Content
> I wonder if we can add -fmax-type-align=8 for extension types... No, we cannot: it's a temporary fix. The flag causes compilation error if it's added to old version of clang or to a C compiler different than clang. > Any ideas about reduce impact for Python 3.7? I don't think that it's a matter of performance here. What matters the most here is correctness. See Florian Weimer's message: https://bugs.python.org/issue36618#msg340261 "This issue potentially affects all compilers, not just Clang."

Content

> I wonder if we can add -fmax-type-align=8 for extension types...
No, we cannot: it's a temporary fix. The flag causes compilation error if it's added to old version of clang or to a C compiler different than clang.
> Any ideas about reduce impact for Python 3.7?
I don't think that it's a matter of performance here. What matters the most here is correctness.
See Florian Weimer's message:
https://bugs.python.org/issue36618#msg340261
"This issue potentially affects all compilers, not just Clang."

History
Date	User	Action	Args
2019年04月16日 10:20:56	vstinner	set	recipients: + vstinner, twouters, nascheme, gregory.p.smith, pitrou, benjamin.peterson, methane, skrah, fweimer, tgrigg
2019年04月16日 10:20:56	vstinner	set	messageid: <1555410056.85.0.30702477069.issue27987@roundup.psfhosted.org>
2019年04月16日 10:20:56	vstinner	link	issue27987 messages
2019年04月16日 10:20:56	vstinner	create

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