From 2a579bf4ea76b49db979b2331f4557571d231412 Mon Sep 17 00:00:00 2001 From: David Monniaux Date: Wed, 25 Nov 2020 09:41:41 +0100 Subject: pointer_eq copied --- arm/Op.v | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'arm') diff --git a/arm/Op.v b/arm/Op.v index 25e48ce1..6f22cece 100644 --- a/arm/Op.v +++ b/arm/Op.v @@ -751,6 +751,20 @@ Proof. auto. 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 eqn:OP; simpl; try congruence. + - intros MEM; destruct c; simpl; try congruence; + repeat (destruct args; simpl; try congruence); + erewrite cmpu_bool_valid_pointer_eq || erewrite cmplu_bool_valid_pointer_eq; eauto. + - intro MEM; destruct c; 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_operation (op: operation) : list ident := -- cgit