Section EVAL_BUILTIN_ARG_EV.
Variable A: Type.
Variable ge: Senv.t.
Variable e: A -> val.
Variable sp: val.
Variable m: mem.
Inductive eval_builtin_arg_ev: builtin_arg A -> val -> list mem_event -> Prop :=
| eval_BA_ev: forall x,
eval_builtin_arg_ev (BA x) (e x) nil
| eval_BA_ev_int: forall n,
eval_builtin_arg_ev (BA_int n) (Vint n) nil
| eval_BA_ev_long: forall n,
eval_builtin_arg_ev (BA_long n) (Vlong n) nil
| eval_BA_ev_float: forall n,
eval_builtin_arg_ev (BA_float n) (Vfloat n) nil
| eval_BA_ev_single: forall n,
eval_builtin_arg_ev (BA_single n) (Vsingle n) nil
| eval_BA_ev_loadstack: forall chunk ofs v b z bytes,
Mem.loadv chunk m (Val.offset_ptr sp ofs) = Some v ->
(align_chunk chunk | (Ptrofs.unsigned z)) ->
Mem.loadbytes m b (Ptrofs.unsigned z) (size_chunk chunk) = Some bytes ->
v= decode_val chunk bytes ->
Val.offset_ptr sp ofs = Vptr b z ->
eval_builtin_arg_ev (BA_loadstack chunk ofs) v [Read b (Ptrofs.unsigned z) (size_chunk chunk) bytes]
| eval_BA_ev_addrstack: forall ofs,
eval_builtin_arg_ev (BA_addrstack ofs) (Val.offset_ptr sp ofs) nil
| eval_BA_ev_loadglobal: forall chunk id ofs v b z bytes,
Mem.loadv chunk m (Senv.symbol_address ge id ofs) = Some v ->
(align_chunk chunk | (Ptrofs.unsigned z)) ->
Mem.loadbytes m b (Ptrofs.unsigned z) (size_chunk chunk) = Some bytes ->
v= decode_val chunk bytes ->
Senv.symbol_address ge id ofs = Vptr b z ->
eval_builtin_arg_ev (BA_loadglobal chunk id ofs) v [Read b (Ptrofs.unsigned z) (size_chunk chunk) bytes]
| eval_BA_ev_addrglobal: forall id ofs,
eval_builtin_arg_ev (BA_addrglobal id ofs) (Senv.symbol_address ge id ofs) nil
| eval_BA_ev_splitlong: forall hi lo vhi vlo Thi Tlo,
eval_builtin_arg_ev hi vhi Thi -> eval_builtin_arg_ev lo vlo Tlo->
eval_builtin_arg_ev (BA_splitlong hi lo) (Val.longofwords vhi vlo) (Thi++Tlo)
| eval_BA_ev_addptr: forall a1 a2 v1 v2 T1 T2,
eval_builtin_arg_ev a1 v1 T1 -> eval_builtin_arg_ev a2 v2 T2->
eval_builtin_arg_ev (BA_addptr a1 a2) (if Archi.ptr64 then Val.addl v1 v2 else Val.add v1 v2) (T1++T2).

Lemma eval_builtin_arg_event_inv: forall a v T, eval_builtin_arg_ev a v T -> eval_builtin_arg ge e sp m a v.