Ltac InvHyps :=
  match goal with
  | [H: None = Some _ |- _ ] => discriminate
  | [H: Some _ = Some _ |- _] => inv H
  | [H1: match ?vl with nil => _ | _ :: _ => _ end = Some _ ,
     H2: list_forall2 _ ?vl _ |- _ ] => inv H2; InvHyps
  | _ => idtac
  end.

Theorem eval_static_operation_sound: forall op vargs m vres aargs, eval_operation ge (Vptr sp Ptrofs.zero) op vargs m = Some vres -> list_forall2 (vmatch bc) vargs aargs -> vmatch bc vres (eval_static_operation op aargs).