diff options
| -rw-r--r-- | mppa_k1c/SelectOp.vp | 2 | ||||
| -rw-r--r-- | mppa_k1c/SelectOpproof.v | 19 |
2 files changed, 17 insertions, 4 deletions
diff --git a/mppa_k1c/SelectOp.vp b/mppa_k1c/SelectOp.vp index 1af0cd38..25f09e2e 100644 --- a/mppa_k1c/SelectOp.vp +++ b/mppa_k1c/SelectOp.vp @@ -564,7 +564,7 @@ Nondetfunction floatofintu (e: expr) := Nondetfunction floatofint (e: expr) := match e with | Eop (Ointconst n) Enil => Eop (Ofloatconst (Float.of_int n)) Enil - | _ => Eop Ofloatofint (e ::: Enil) + | _ => Eop Ofloatoflong ((Eop Ocast32signed (e ::: Enil)) ::: Enil) end. Definition intofsingle (e: expr) := Eop Ointofsingle (e ::: Enil). diff --git a/mppa_k1c/SelectOpproof.v b/mppa_k1c/SelectOpproof.v index e07bc51c..6fa93fd8 100644 --- a/mppa_k1c/SelectOpproof.v +++ b/mppa_k1c/SelectOpproof.v @@ -1180,9 +1180,22 @@ Theorem eval_floatofint: Val.floatofint x = Some y -> exists v, eval_expr ge sp e m le (floatofint a) v /\ Val.lessdef y v. Proof. - intros until y; unfold floatofint. case (floatofint_match a); intros. - InvEval. simpl in H0. TrivialExists. - TrivialExists. + intros. + unfold floatofint. + destruct (floatofint_match a). + - InvEval. + TrivialExists. + - InvEval. + TrivialExists. + constructor. econstructor. constructor. eassumption. constructor. + simpl. f_equal. constructor. + simpl. + destruct x; simpl; trivial. + f_equal. + inv H0. + f_equal. + rewrite Float.of_int_of_long. + reflexivity. Qed. Theorem eval_intofsingle: |