[Bug middle-end/117423] union not written to with particular layout

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117423

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 59525
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59525&action=edit
Cleanuped testcase