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[Bug math/19058] [x86_64] Link fail with -fopenmp and -flto


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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