[Bug tree-optimization/118232] [12/13/14/15 regression] wrong union member size identification in -Os optimization, starting from gcc 11 till current

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118232

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 59998
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59998&action=edit
Reduced