Module ESD2 := FSetDecide.Decide(EqSet2).
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 return_regs_agree_callee_save:
forall caller callee,
agree_callee_save caller (return_regs caller callee).