[Bug rtl-optimization/121253] aarch64 inline asm: 128-bit output operands use clobbered registers

[nate at thatsmathematics dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121253

--- Comment #1 from Nate Eldredge <nate at thatsmathematics dot com> ---
Input operands, as well as read-write `+` operands, seem to be allocated
correctly.