diff options
| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2010-05-23 15:26:33 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2010-05-23 15:26:33 +0000 |
| commit | 3a050b22f37f3c79a10a8ebae3d292fa77e91b76 (patch) | |
| tree | 16a0d9366f6805cfc9726c0b80dd8da84cb63a3d /backend/Selectionproof.v | |
| parent | 7999c9ee1f09f7d555e3efc39f030564f76a3354 (diff) | |
More faithful semantics for volatile reads and writes.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1346 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'backend/Selectionproof.v')
| -rw-r--r-- | backend/Selectionproof.v | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/backend/Selectionproof.v b/backend/Selectionproof.v index 0d1a1ee..e03085a 100644 --- a/backend/Selectionproof.v +++ b/backend/Selectionproof.v @@ -319,6 +319,13 @@ Proof. intros. destruct f; reflexivity. Qed. +Lemma varinfo_preserved: + forall b, Genv.find_var_info tge b = Genv.find_var_info ge b. +Proof. + intros; unfold ge, tge, tprog, sel_program. + apply Genv.find_var_info_transf. +Qed. + (** Semantic preservation for expressions. *) Lemma sel_expr_correct: @@ -471,7 +478,8 @@ Proof. constructor; auto. (* external call *) econstructor; split. - econstructor. eapply external_call_symbols_preserved; eauto. exact symbols_preserved. + econstructor. eapply external_call_symbols_preserved; eauto. + exact symbols_preserved. exact varinfo_preserved. constructor; auto. Qed. |