Selfhost LLVM and Clang on ARM

Hi, all

  I am trying to selfhost LLVM and Clanf on ARM. Hopefully
doing this can reveal what version of GCC is broken. But I
have a concern about the following message while building
LLVM and Clang by using clang (selfhost build).

Hi chenwj,

See:

http://gcc.gnu.org/ml/gcc-help/2004-03/msg00085.html
http://llvm.org/bugs/show_bug.cgi?id=2313

etc.

They are now warnings and you should be fine. But ultimately, those
restrictions could be implemented to avoid the warnings.

cheers,
--renato