[Bug middle-end/124637] powerpc64: invalid code while passing a struct via register

[gcc at breakpoint dot cc]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124637

--- Comment #8 from Sebastian Andrzej Siewior <gcc at breakpoint dot cc> ---
Works on:
gcc version 11.5.0 (Debian 11.5.0-10)
gcc version 12.5.0 (Debian 12.5.0-8) 

Fails on:
gcc version 13.4.0 (Debian 13.4.0-9)