diff options
Diffstat (limited to 'backend/Tailcallproof.v')
-rw-r--r-- | backend/Tailcallproof.v | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/backend/Tailcallproof.v b/backend/Tailcallproof.v index 02a6ca90..77725cfb 100644 --- a/backend/Tailcallproof.v +++ b/backend/Tailcallproof.v @@ -181,10 +181,12 @@ Lemma transf_instr_lookup: f.(fn_code)!pc = Some i -> exists i', (transf_function f).(fn_code)!pc = Some i' /\ transf_instr_spec f i i'. Proof. - intros. unfold transf_function. destruct (zeq (fn_stacksize f) 0). + intros. unfold transf_function. + destruct (zeq (fn_stacksize f) 0). destruct (eliminate_tailcalls tt). simpl. rewrite PTree.gmap. rewrite H. simpl. exists (transf_instr f pc i); split. auto. apply transf_instr_charact; auto. exists i; split. auto. constructor. + exists i; split. auto. constructor. Qed. (** * Semantic properties of the code transformation *) @@ -260,14 +262,14 @@ Lemma sig_preserved: forall f, funsig (transf_fundef f) = funsig f. Proof. destruct f; auto. simpl. unfold transf_function. - destruct (zeq (fn_stacksize f) 0); auto. + destruct (zeq (fn_stacksize f) 0 && eliminate_tailcalls tt); auto. Qed. Lemma stacksize_preserved: forall f, fn_stacksize (transf_function f) = fn_stacksize f. Proof. unfold transf_function. intros. - destruct (zeq (fn_stacksize f) 0); auto. + destruct (zeq (fn_stacksize f) 0 && eliminate_tailcalls tt); auto. Qed. Lemma find_function_translated: @@ -553,7 +555,7 @@ Proof. assert (fn_stacksize (transf_function f) = fn_stacksize f /\ fn_entrypoint (transf_function f) = fn_entrypoint f /\ fn_params (transf_function f) = fn_params f). - unfold transf_function. destruct (zeq (fn_stacksize f) 0); auto. + unfold transf_function. destruct (zeq (fn_stacksize f) 0 && eliminate_tailcalls tt); auto. destruct H0 as [EQ1 [EQ2 EQ3]]. left. econstructor; split. simpl. eapply exec_function_internal; eauto. rewrite EQ1; eauto. |