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diff --git a/lib/hipe/flow/cfg.hrl b/lib/hipe/flow/cfg.hrl
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+++ b/lib/hipe/flow/cfg.hrl
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+%% -*- erlang-indent-level: 2 -*-
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2007-2009. All Rights Reserved.
+%% 
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%% 
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%% 
+%% %CopyrightEnd%
+%%
+%%============================================================================
+%% File    : cfg.hrl
+%% Author  : Kostis Sagonas <[email protected]>
+%% Purpose : Contains typed record declarations for the CFG data structures
+%%
+%% $Id$
+%%============================================================================
+
+-type cfg_lbl() :: non_neg_integer().
+
+%%
+%% This is supposed to be local but appears here for the time being
+%% just so that it is used below
+%%
+-record(cfg_info, {'fun'         :: mfa(),
+                   start_label   :: cfg_lbl(),
+                   is_closure    :: boolean(),
+                   closure_arity :: arity(),
+                   is_leaf       :: boolean(),
+                   params,     % :: list()
+                   info = []}).  %% this field seems not needed; take out??
+
+%%
+%% Data is a triple with a dict of constants, a list of labels and an integer
+%%
+-type cfg_data() :: {dict(), [cfg_lbl()], non_neg_integer()}.
+
+%%
+%% The following is to be used by other modules
+%%
+-record(cfg, {table = gb_trees:empty() :: gb_tree(),
+              info                     :: #cfg_info{},
+              data                     :: cfg_data()}).
+-type cfg() :: #cfg{}.