https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100200
--- Comment #2 from Alex Coplan <acoplan at gcc dot gnu.org> --- Started with r10-3389-g835d50c66aa5bde2f354a6e63a2afa7d2f76a05a for the above testcase. That commit just introduces a use of aarch64_plus_immediate. The actual issue must be older.
