[Bug tree-optimization/70782] zero-initialized long returned by value generates useless stores/loads to the stack

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70782

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Josh Haberman from comment #1)
> I just realized that the union has nothing to do with it.  I get exactly the
> same results if the function returns a long:

Note the version in comment #1 is already much better code generation starting
in GCC 11.