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-rw-r--r--aarch64/Asmgenproof.v12
1 files changed, 10 insertions, 2 deletions
diff --git a/aarch64/Asmgenproof.v b/aarch64/Asmgenproof.v
index 73921c03..55ff066f 100644
--- a/aarch64/Asmgenproof.v
+++ b/aarch64/Asmgenproof.v
@@ -529,9 +529,17 @@ Proof.
eapply exec_exit_simulation_plus; try rewrite Hex; congruence || eauto.
- inv MATCHI.
inv EXIT.
- assert (X: rs2 = incrPC (Ptrofs.repr (size bb)) rs). { admit. }
+ assert (X: rs2 = incrPC (Ptrofs.repr (size bb)) rs). {
+ unfold incrPC. unfold Pregmap.set.
+ apply functional_extensionality. intros x.
+ destruct (PregEq.eq x PC) as [X|].
+ - rewrite X. rewrite <- AGPC. simpl.
+ replace (size bb - 0) with (size bb) by omega. reflexivity.
+ - rewrite AG; try assumption. reflexivity.
+ }
+ destruct X.
subst; eapply star_refl; eauto.
-Admitted.
+Qed.
Lemma exec_bblock_simulation b ofs f tf bb t rs m rs' m': forall
(ATPC: rs PC = Vptr b ofs)