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-rw-r--r--backend/CleanupLabelsproof.v15
1 files changed, 11 insertions, 4 deletions
diff --git a/backend/CleanupLabelsproof.v b/backend/CleanupLabelsproof.v
index 65ba61c9..f952f1ea 100644
--- a/backend/CleanupLabelsproof.v
+++ b/backend/CleanupLabelsproof.v
@@ -43,6 +43,13 @@ Proof.
apply Genv.find_symbol_transf.
Qed.
+Lemma public_preserved:
+ forall (s: ident), Genv.public_symbol tge s = Genv.public_symbol ge s.
+Proof.
+ intros; unfold ge, tge, tprog, transf_program.
+ apply Genv.public_symbol_transf.
+Qed.
+
Lemma varinfo_preserved:
forall b, Genv.find_var_info tge b = Genv.find_var_info ge b.
Proof.
@@ -285,12 +292,12 @@ Proof.
(* Lbuiltin *)
left; econstructor; split.
econstructor; eauto. eapply external_call_symbols_preserved'; eauto.
- exact symbols_preserved. exact varinfo_preserved.
+ exact symbols_preserved. exact public_preserved. exact varinfo_preserved.
econstructor; eauto with coqlib.
(* Lannot *)
left; econstructor; split.
econstructor; eauto. eapply external_call_symbols_preserved'; eauto.
- exact symbols_preserved. exact varinfo_preserved.
+ exact symbols_preserved. exact public_preserved. exact varinfo_preserved.
econstructor; eauto with coqlib.
(* Llabel *)
case_eq (Labelset.mem lbl (labels_branched_to (fn_code f))); intros.
@@ -329,7 +336,7 @@ Proof.
(* external function *)
left; econstructor; split.
econstructor; eauto. eapply external_call_symbols_preserved'; eauto.
- exact symbols_preserved. exact varinfo_preserved.
+ exact symbols_preserved. exact public_preserved. exact varinfo_preserved.
econstructor; eauto with coqlib.
(* return *)
inv H3. inv H1. left; econstructor; split.
@@ -362,7 +369,7 @@ Theorem transf_program_correct:
forward_simulation (Linear.semantics prog) (Linear.semantics tprog).
Proof.
eapply forward_simulation_opt.
- eexact symbols_preserved.
+ eexact public_preserved.
eexact transf_initial_states.
eexact transf_final_states.
eexact transf_step_correct.