Clang adds alignment hints when casting up the loads/stores. Although
this should be safe for most paths, it's causing some crashes. Either
the source of the misalignment needs to be determined and adjusted or
the intrinsics need to be rewritten to avoid using the cast to load the
data.

BUG=817,892

Change-Id: Ia3aa824d6a4cd97e14325ff49dc730b6f85ec7e8