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-rw-r--r--kvx/Op.v20
1 files changed, 20 insertions, 0 deletions
diff --git a/kvx/Op.v b/kvx/Op.v
index e2ffa3e5..794bc87b 100644
--- a/kvx/Op.v
+++ b/kvx/Op.v
@@ -1238,6 +1238,26 @@ Proof.
unfold Val.cmpu_bool, Val.cmplu_bool; rewrite SF; reflexivity.
Qed.
+Lemma op_valid_pointer_eq:
+ forall (F V: Type) (ge: Genv.t F V) sp op args m1 m2,
+ (forall b z, Mem.valid_pointer m1 b z = Mem.valid_pointer m2 b z) ->
+ eval_operation ge sp op args m1 = eval_operation ge sp op args m2.
+Proof.
+ intros until m2. destruct op; simpl; try congruence.
+ - intros MEM; destruct cond; simpl; try congruence;
+ repeat (destruct args; simpl; try congruence);
+ erewrite cmpu_bool_valid_pointer_eq || erewrite cmplu_bool_valid_pointer_eq; eauto.
+ - intros MEM; destruct c0; simpl; try congruence;
+ repeat (destruct args; simpl; try congruence);
+ erewrite cmpu_bool_valid_pointer_eq || erewrite cmplu_bool_valid_pointer_eq; eauto.
+ - intros MEM; destruct c0; simpl; try congruence;
+ repeat (destruct args; simpl; try congruence);
+ erewrite cmpu_bool_valid_pointer_eq || erewrite cmplu_bool_valid_pointer_eq; eauto.
+ - intros MEM; destruct c0; simpl; try congruence;
+ repeat (destruct args; simpl; try congruence);
+ erewrite cmpu_bool_valid_pointer_eq || erewrite cmplu_bool_valid_pointer_eq; eauto.
+Qed.
+
(** Global variables mentioned in an operation or addressing mode *)
Definition globals_addressing (addr: addressing) : list ident :=