[Bug middle-end/82636] powerpc: Unnecessary copy of __ieee128 parameter

[meissner at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82636

--- Comment #2 from Michael Meissner <meissner at gcc dot gnu.org> ---
Created attachment 42422
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42422&action=edit
Simpler test case that does not use asm