diff options
| -rw-r--r-- | riscV/SelectOp.vp | 6 | ||||
| -rw-r--r-- | riscV/SelectOpproof.v | 14 |
2 files changed, 20 insertions, 0 deletions
diff --git a/riscV/SelectOp.vp b/riscV/SelectOp.vp index bb8af2ed..760f06af 100644 --- a/riscV/SelectOp.vp +++ b/riscV/SelectOp.vp @@ -420,6 +420,12 @@ Definition singleofintu (e: expr) := Eop Osingleofintu (e ::: Enil). Definition singleoffloat (e: expr) := Eop Osingleoffloat (e ::: Enil). Definition floatofsingle (e: expr) := Eop Ofloatofsingle (e ::: Enil). +(** ** Selection *) + +Definition select (ty: typ) (cond: condition) (args: exprlist) (e1 e2: expr) + : option expr + := None. + (** ** Recognition of addressing modes for load and store operations *) Nondetfunction addressing (chunk: memory_chunk) (e: expr) := diff --git a/riscV/SelectOpproof.v b/riscV/SelectOpproof.v index d12bd8af..d0e6979c 100644 --- a/riscV/SelectOpproof.v +++ b/riscV/SelectOpproof.v @@ -873,6 +873,20 @@ Proof. red; intros. unfold floatofsingle. TrivialExists. Qed. +Theorem eval_select: + forall le ty cond al vl a1 v1 a2 v2 a b, + select ty cond al a1 a2 = Some a -> + eval_exprlist ge sp e m le al vl -> + eval_expr ge sp e m le a1 v1 -> + eval_expr ge sp e m le a2 v2 -> + eval_condition cond vl m = Some b -> + exists v, + eval_expr ge sp e m le a v + /\ Val.lessdef (Val.select (Some b) v1 v2 ty) v. +Proof. + unfold select; intros; discriminate. +Qed. + Theorem eval_addressing: forall le chunk a v b ofs, eval_expr ge sp e m le a v -> |