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Diffstat (limited to 'ia32/SelectOpproof.v')
| -rw-r--r-- | ia32/SelectOpproof.v | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/ia32/SelectOpproof.v b/ia32/SelectOpproof.v index 85802b6..cec3b59 100644 --- a/ia32/SelectOpproof.v +++ b/ia32/SelectOpproof.v @@ -576,7 +576,14 @@ Qed. Theorem eval_divf: binary_constructor_sound divf Val.divf. Proof. - red; intros; TrivialExists. + red. intros until y. unfold divf. destruct (divf_match b); intros. +- unfold divfimm. destruct (Float.exact_inverse n2) as [n2' | ] eqn:EINV. + + inv H0. inv H4. simpl in H6. inv H6. econstructor; split. + EvalOp. constructor. eauto. constructor. EvalOp. simpl; eauto. constructor. + simpl; eauto. + destruct x; simpl; auto. erewrite Float.div_mul_inverse; eauto. + + TrivialExists. +- TrivialExists. Qed. Section COMP_IMM. |