[Bug target/57744] Power8 support has problems with quad word atomic instructions

[meissner at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57744

--- Comment #2 from Michael Meissner <meissner at gcc dot gnu.org> ---
Created attachment 30404
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30404&action=edit
Proposed patch to fix problem