From a82c9c0e4a0b8e37c9c3ea5ae99714982563606f Mon Sep 17 00:00:00 2001 From: xleroy Date: Sat, 14 Jan 2012 14:23:26 +0000 Subject: Merge of the nonstrict-ops branch: - Most RTL operators now evaluate to Some Vundef instead of None when undefined behavior occurs. - More aggressive instruction selection. - "Bertotization" of pattern-matchings now implemented by a proper preprocessor. - Cast optimization moved to cfrontend/Cminorgen; removed backend/CastOptim. git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1790 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e --- common/Memory.v | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'common/Memory.v') diff --git a/common/Memory.v b/common/Memory.v index 157867e8..e1c68bd6 100644 --- a/common/Memory.v +++ b/common/Memory.v @@ -3105,6 +3105,15 @@ Proof. eapply mi_access; eauto. auto. Qed. +Theorem valid_pointer_extends: + forall m1 m2 b ofs, + extends m1 m2 -> valid_pointer m1 b ofs = true -> valid_pointer m2 b ofs = true. +Proof. + intros. + rewrite valid_pointer_valid_access in *. + eapply valid_access_extends; eauto. +Qed. + (* Theorem bounds_extends: forall m1 m2 b, -- cgit