Architecture maintainers: please define TARGET_ATOMIC_ASSIGN_EXPAND_FENV

[Joseph S. Myers]

On Fri, 8 Nov 2013, Andreas Schwab wrote:

> > The tests do not require sync_long_long_runtime.
> 
> True, but they require __atomic_store_16, which is generally not
> available.

See my comments at 
<http://gcc.gnu.org/ml/gcc-patches/2013-11/msg00894.html> - my inclination 
is that the code resolving the overloaded builtins (unchanged by the 
addition of _Atomic support) shouldn't try to use the _16 versions unless 
targetm.scalar_mode_supported_p (TImode).

-- 
Joseph S. Myers
joseph@codesourcery.com