[Bug libstdc++/29366] atomics config for sh is weird

[kkojima at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29366

--- Comment #3 from Kazumoto Kojima <kkojima at gcc dot gnu.org> 2012-04-12 01:20:06 UTC ---
(In reply to comment #2)
> I think some of the problems will disappear once PR 52941 is done.
> After that, and having the new atomic builtins of 4.7, we could get rid of the
> config/cpu/sh/atomicity.h file completely, if I'm not mistaken.

Agreed.