diff options
| author |  xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2012-07-23 15:01:54 +0000 |
|---|---|---|
| committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2012-07-23 15:01:54 +0000 |
| commit | 4297fcb821c3188449b64184af73e41491a6118f (patch) | |
| tree | 3f31e0bd4bcfa107a345c1670e65290e785ee091 /backend/Stackingproof.v | |
| parent | 7c9500e438384c6c0ce478c8c73b3887137ac924 (diff) | |
- Revised non-overflow constraints on memory injections so that
injections compose (Values, Memdata, Memory)
- Memory chunks: Mfloat64 now has alignment 8; introduced Mfloat64al32
that works like old Mfloat64 (i.e. has alignment 4); simplified
handling of memcpy builtin accordingly.
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@1983 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'backend/Stackingproof.v')
| -rw-r--r-- | backend/Stackingproof.v | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/backend/Stackingproof.v b/backend/Stackingproof.v index be5e4b9..1cfb738 100644 --- a/backend/Stackingproof.v +++ b/backend/Stackingproof.v @@ -232,7 +232,7 @@ Proof. Qed. Lemma fe_stack_data_aligned: - (4 | fe_stack_data fe). + (8 | fe_stack_data fe). Proof. intros. generalize (frame_env_aligned b). intuition. fold fe in H. intuition. @@ -371,7 +371,7 @@ Lemma gss_index_contains_base: /\ decode_encode_val v (chunk_of_type (type_of_index idx)) (chunk_of_type (type_of_index idx)) v'. Proof. intros. - exploit Mem.load_store_similar. eauto. reflexivity. + exploit Mem.load_store_similar. eauto. reflexivity. omega. intros [v' [A B]]. exists v'; split; auto. constructor; auto. Qed. @@ -1408,7 +1408,7 @@ Proof. intros. apply Mem.perm_implies with Freeable; auto with mem. eapply Mem.perm_alloc_2; eauto. generalize stack_data_offset_valid bound_stack_data_stacksize; omega. - red. intros. apply Zdivides_trans with 4. + red. intros. apply Zdivides_trans with 8. destruct chunk; simpl; auto with align_4. apply fe_stack_data_aligned. intros. |