[Bug target/57615] power8 support does not deal with -mquad-memory -mno-vsx

[meissner at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57615

--- Comment #1 from Michael Meissner <meissner at gcc dot gnu.org> ---
Created attachment 30303
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30303&action=edit
Proposed patch to fix problem