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[Bug math/19058] [x86_64] Link fail with -fopenmp and -flto
- From: "joseph at codesourcery dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Wed, 10 Feb 2016 16:37:49 +0000
- Subject: [Bug math/19058] [x86_64] Link fail with -fopenmp and -flto
- Auto-submitted: auto-generated
- References: <bug-19058-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=19058
--- Comment #13 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
On Wed, 10 Feb 2016, hjl.tools at gmail dot com wrote:
> https://sourceware.org/bugzilla/show_bug.cgi?id=19058
>
> --- Comment #12 from H.J. Lu <hjl.tools at gmail dot com> ---
> (In reply to joseph@codesourcery.com from comment #11)
> > The alias is working around a compiler limitation. The right thing to do
> > long term is to get consensus on a compiler feature for assigning names to
> > vector versions of functions independent of the set of scalar versions,
> > not to make the ABI larger than necessary to work around the lack of such
> > a feature.
>
> Should the workaround be in GCC then? Otherwise, it will be used
> even when compiler works fine.
Given a suitable new compiler feature in use, there will be no undefined
references to the *_finite vector function names, and so none of the
objects from libmvec_nonshared.a will be linked in.
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