[Bug tree-optimization/90883] Generated code is worse if returned struct is unnamed

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90883

--- Comment #25 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The FRE redundant store removal went away in r273135 aka PR91091 fix.