[Bug target/70669] PowerPC __float128 does not support direct move

[meissner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70669

--- Comment #1 from Michael Meissner <meissner at gcc dot gnu.org> ---
Created attachment 38275
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38275&action=edit
Proposed patch to fix the problem