[Bug c++/105260] Union with user-defined empty destructor leads to worse code-gen

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105260

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Well, it simply looks like the calling conventions for dummyFunc are different
with the ABI in effect depending on the PODness(?), and the code is as
optimized as it can be.