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-rw-r--r--backend/CSEdomain.v13
1 files changed, 11 insertions, 2 deletions
diff --git a/backend/CSEdomain.v b/backend/CSEdomain.v
index 8809094e..3fee2db6 100644
--- a/backend/CSEdomain.v
+++ b/backend/CSEdomain.v
@@ -43,7 +43,7 @@ Definition eq_list_valnum: forall (x y: list valnum), {x=y}+{x<>y} := list_eq_de
Definition eq_rhs (x y: rhs) : {x=y}+{x<>y}.
Proof.
- generalize chunk_eq eq_operation eq_addressing eq_valnum eq_list_valnum.
+ generalize trapping_mode_eq chunk_eq eq_operation eq_addressing eq_valnum eq_list_valnum.
decide equality.
Defined.
@@ -109,7 +109,16 @@ Inductive rhs_eval_to (valu: valuation) (ge: genv) (sp: val) (m: mem):
| load_eval_to: forall chunk addr vl a v,
eval_addressing ge sp addr (map valu vl) = Some a ->
Mem.loadv chunk m a = Some v ->
- rhs_eval_to valu ge sp m (Load chunk addr vl) v.
+ rhs_eval_to valu ge sp m (Load chunk addr vl) v
+(* | load_notrap1_eval_to: forall chunk addr vl,
+ eval_addressing ge sp addr (map valu vl) = None ->
+ rhs_eval_to valu ge sp m (Load NOTRAP chunk addr vl)
+ Vundef
+ | load_notrap2_eval_to: forall chunk addr vl a,
+ eval_addressing ge sp addr (map valu vl) = Some a ->
+ Mem.loadv chunk m a = None ->
+ rhs_eval_to valu ge sp m (Load NOTRAP chunk addr vl)
+ Vundef *).
Inductive equation_holds (valu: valuation) (ge: genv) (sp: val) (m: mem):
equation -> Prop :=