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| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2012-01-14 14:23:26 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2012-01-14 14:23:26 +0000 |
| commit | a82c9c0e4a0b8e37c9c3ea5ae99714982563606f (patch) | |
| tree | 93b9999698a4cd47ec4cb5fcdcdfd215d62f8e9e /common/Memdata.v | |
| parent | bb8f49c419eb8205ef541edcbe17f4d14aa99564 (diff) | |
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
Diffstat (limited to 'common/Memdata.v')
| -rw-r--r-- | common/Memdata.v | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/common/Memdata.v b/common/Memdata.v index fde8b47..47ed79e 100644 --- a/common/Memdata.v +++ b/common/Memdata.v @@ -1029,22 +1029,6 @@ Proof. apply repeat_Undef_inject_any. apply encode_val_length. Qed. -(** The identity injection has interesting properties. *) - -Definition inject_id : meminj := fun b => Some(b, 0). - -Lemma val_inject_id: - forall v1 v2, - val_inject inject_id v1 v2 <-> Val.lessdef v1 v2. -Proof. - intros; split; intros. - inv H. constructor. constructor. - unfold inject_id in H0. inv H0. rewrite Int.add_zero. constructor. - constructor. - inv H. destruct v2; econstructor. unfold inject_id; reflexivity. rewrite Int.add_zero; auto. - constructor. -Qed. - Definition memval_lessdef: memval -> memval -> Prop := memval_inject inject_id. Lemma memval_lessdef_refl: |