Section InternalCall.
(****************The following three conditions are new******************)
(****************The following three conditions are new******************)
(* In the third clause, we now step from  m' to m, and also from f' to f and from tm' to tm******************)
Variable cenv : compilenv.
Variable f : Csharpminor.function.
Variable mu : SM_Injection.
Variable m tm : mem.
Variable cs : callstack.
Variable e : Csharpminor.env.
Variable lenv : temp_env.
Variable k : Csharpminor.cont.
Variable tk : cont.

Theorem MS_structured_match_callstack_function_entry:
forall fn cenv tf m' tm' sp cs args targs,
build_compilenv fn = (cenv, tf.(fn_stackspace)) ->
tf.(fn_stackspace) <= Int.max_unsigned ->
list_norepet (map fst (Csharpminor.fn_vars fn)) ->
list_norepet (Csharpminor.fn_params fn) ->
list_disjoint (Csharpminor.fn_params fn) (Csharpminor.fn_temps fn) ->
alloc_variables Csharpminor.empty_env m (Csharpminor.fn_vars fn) e m' ->
bind_parameters (Csharpminor.fn_params fn) args (create_undef_temps fn.(fn_temps)) = Some lenv ->
val_list_inject (restrict (as_inj mu) (vis mu)) args targs ->
Mem.alloc tm 0 tf.(fn_stackspace) = (tm', sp) ->
structured_match_callstack mu m tm cs (Mem.nextblock m) (Mem.nextblock tm) ->
REACH_closed m (vis mu) -> sm_valid mu m tm -> SM_wd mu ->
Mem.inject (as_inj mu) m tm ->
let te := set_locals (Csharpminor.fn_temps fn) (set_params targs (Csharpminor.fn_params fn)) in
exists mu',
structured_match_callstack mu' m' tm'
(Frame cenv tf e lenv te sp (Mem.nextblock m) (Mem.nextblock m') :: cs)
(Mem.nextblock m') (Mem.nextblock tm')
/\ Mem.inject (as_inj mu') m' tm'
/\ intern_incr mu mu'
/\ sm_inject_separated mu mu' m tm
/\ sm_locally_allocated mu mu' m tm m' tm'
/\ SM_wd mu' /\ sm_valid mu' m' tm'
/\ REACH_closed m' (vis mu').