Remark val_lessdef_normalize:
  forall v v' ty,
  Val.has_type v ty -> Val.lessdef v v' ->
  Val.lessdef v (Val.load_result (chunk_of_type ty) v').

Lemma sig_function_translated: forall f tf, transf_fundef f = OK tf -> LTL.funsig tf = RTL.funsig f.