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

Lemma tc_test_eq0:
forall b i m,
(denote_tc_test_eq (Vptr b i) (Vint Int.zero)) (m_phi m) ->
Mem.weak_valid_pointer (m_dry m) b (Ptrofs.unsigned i) = true.