diff options
Diffstat (limited to 'mppa_k1c/SelectLongproof.v')
| -rw-r--r-- | mppa_k1c/SelectLongproof.v | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/mppa_k1c/SelectLongproof.v b/mppa_k1c/SelectLongproof.v index dd4cfa69..11804d2e 100644 --- a/mppa_k1c/SelectLongproof.v +++ b/mppa_k1c/SelectLongproof.v @@ -703,16 +703,22 @@ Qed. Theorem eval_longofsingle: partial_unary_constructor_sound longofsingle Val.longofsingle. Proof. - unfold longofsingle; red; intros. (* destruct Archi.splitlong eqn:SL. *) - eapply SplitLongproof.eval_longofsingle; eauto. -(* TrivialExists. *) + unfold longofsingle; red; intros. + destruct x; simpl in H0; inv H0. destruct (Float32.to_long f) as [n|] eqn:EQ; simpl in H2; inv H2. + exploit eval_floatofsingle; eauto. intros (v & A & B). simpl in B. inv B. + apply Float32.to_long_double in EQ. + eapply eval_longoffloat; eauto. simpl. + change (Float.of_single f) with (Float32.to_double f); rewrite EQ; auto. Qed. Theorem eval_longuofsingle: partial_unary_constructor_sound longuofsingle Val.longuofsingle. Proof. unfold longuofsingle; red; intros. (* destruct Archi.splitlong eqn:SL. *) - eapply SplitLongproof.eval_longuofsingle; eauto. -(* TrivialExists. *) + destruct x; simpl in H0; inv H0. destruct (Float32.to_longu f) as [n|] eqn:EQ; simpl in H2; inv H2. + exploit eval_floatofsingle; eauto. intros (v & A & B). simpl in B. inv B. + apply Float32.to_longu_double in EQ. + eapply eval_longuoffloat; eauto. simpl. + change (Float.of_single f) with (Float32.to_double f); rewrite EQ; auto. Qed. Theorem eval_singleoflong: partial_unary_constructor_sound singleoflong Val.singleoflong. |