Opaque tc_andp.
(** Equivalence of CompCert eval_expr and our function eval_expr on programs that typecheck **)

Lemma cop2_sem_cast :
forall t1 t2 v m,
(classify_cast t1 t2 = classify_cast size_t tbool ->
denote_tc_test_eq v (Vint Int.zero) (m_phi m) )->
t1 <> int_or_ptr_type ->
t2 <> int_or_ptr_type ->
tc_val t1 v ->
Cop.sem_cast v t1 t2 (m_dry m) = sem_cast t1 t2 v.