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-rw-r--r--backend/Tunneling.v14
1 files changed, 1 insertions, 13 deletions
diff --git a/backend/Tunneling.v b/backend/Tunneling.v
index 4b1417f..ef55a15 100644
--- a/backend/Tunneling.v
+++ b/backend/Tunneling.v
@@ -110,16 +110,6 @@ Definition tunnel_instr (uf: U.t) (b: instruction) : instruction :=
Lreturn or
end.
-Lemma wf_tunneled_code:
- forall (f: LTL.function) (uf: U.t),
- let tc := PTree.map (fun pc b => tunnel_instr uf b) (fn_code f) in
- forall (pc: node), Plt pc (fn_nextpc f) \/ tc!pc = None.
-Proof.
- intros. elim (fn_code_wf f pc); intro.
- left; auto. right; unfold tc.
- rewrite PTree.gmap; unfold option_map; rewrite H; auto.
-Qed.
-
Definition tunnel_function (f: LTL.function) : LTL.function :=
let uf := record_gotos f in
mkfunction
@@ -127,9 +117,7 @@ Definition tunnel_function (f: LTL.function) : LTL.function :=
(fn_params f)
(fn_stacksize f)
(PTree.map (fun pc b => tunnel_instr uf b) (fn_code f))
- (U.repr uf (fn_entrypoint f))
- (fn_nextpc f)
- (wf_tunneled_code f uf).
+ (U.repr uf (fn_entrypoint f)).
Definition tunnel_fundef (f: LTL.fundef) : LTL.fundef :=
transf_fundef tunnel_function f.