Remark eval_builtin_args_trivial:
forall (ge: RTL.genv) (rs: regset) sp m rl,
eval_builtin_args ge (fun r => rs#r) sp m (List.map (@BA reg) rl) rs##rl.

Lemma transl_exprlist_Enil_correct:
forall (le : letenv),
transl_exprlist_prop le Enil nil.