(** * Matching and memory injections. *)
Definition inj_of_bc (bc: block_classification) : meminj :=
fun b => match bc b with BCinvalid => None | _ => Some(b, 0) end.

Lemma pmatch_inj:
forall bc b ofs p, pmatch bc b ofs p -> inj_of_bc bc b = Some(b, 0).