(** Load int64 constant. *)

Lemma loadimm64_correct:
forall r n k rs m,
exists rs',
exec_straight ge fn (loadimm64 r n k) rs m  k rs' m
/\ rs'#r = Vlong n
/\ forall r': preg, r' <> r -> r' <> GPR12 -> r' <> PC -> rs'#r' = rs#r'.