[Bug target/105468] Suboptimal code generation for access of function parameters and return values of type __float128 on x86-64 Windows target.

[already5chosen at yahoo dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105468

--- Comment #1 from Michael_S <already5chosen at yahoo dot com> ---
Created attachment 52922
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52922&action=edit
test bench that demonstrates maximal impact on Zen3