[Bug ipa/111088] useless 'xor eax,eax' inserted when a value is not returned and icf

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111088

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
In C++ this would have been undefined - I don't think this particular testcase
is worth "optimizing".