Remark make_ptrofs_of_int_correct:
  forall e le m a i si,
  eval_expr ge e le m a (Vint i) ->
  eval_expr ge e le m (if Archi.ptr64 then make_longofint a si else a) (Vptrofs (ptrofs_of_int si i)).Remark make_ptrofs_of_int64_correct:
  forall e le m a i,
  eval_expr ge e le m a (Vlong i) ->
  eval_expr ge e le m (if Archi.ptr64 then a else Eunop Ointoflong a) (Vptrofs (Ptrofs.of_int64 i)).

Lemma match_env_free_blocks: forall e te m m', match_env e te -> Mem.free_list m (Clight.blocks_of_env ge e) = Some m' -> Mem.free_list m (blocks_of_env te) = Some m'.