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Re: version typeinfo for 128bit types

On Tue, Apr 22, 2014 at 10:06:19PM +0200, Marc Glisse wrote:
> Hello,
> as written in the PR, my patch seems wrong for platforms like
> powerpc that already had the __float128 typeinfo for long double
> with a different version. The following patch regtested fine on
> x86_64, and a hackish cross-build shows that float128.ver is ignored
> on powerpc (good).
> 2014-04-23  Marc Glisse  <>
> 	PR libstdc++/43622
> 	* config/abi/pre/float128.ver: New file.
> 	* config/abi/pre/gnu.ver (CXXABI_1.3.9): Move __float128 typeinfo to
> 	the new file.
> 	* config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
> 	* Use float128.ver when relevant.
> 	* configure: Regenerate.

Note, I hope to restart work to add __float128 as IEEE 128-bit floating point
in the PowerPC shortly.  I had done about 1/2 of the work in a sandbox, and I
needed to put it aside to look at other issues, and it has bubbled up to be
high on my list of priorities.

Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email:, phone: +1 (978) 899-4797

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