The R13B03 release.OTP_R13B03

1 files changed, 48 insertions, 0 deletions

diff --git a/lib/hipe/regalloc/hipe_node_sets.erl b/lib/hipe/regalloc/hipe_node_sets.erl
new file mode 100644
index 0000000000..b5e2971c4d
--- /dev/null
+++ b/lib/hipe/regalloc/hipe_node_sets.erl
@@ -0,0 +1,48 @@
+%% -*- erlang-indent-level: 2 -*-
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 2001-2009. 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%
+%%
+
+-module(hipe_node_sets).
+
+-export([new/0,
+	 spilled/1,
+	 colored/1,
+	 add_spilled/2,
+	 add_colored/2
+	]).
+
+-record(node_sets, 
+	{spilled,    % Nodes marked for spilling
+	 colored     % Nodes succesfully colored
+	}).
+
+spilled(Node_sets) -> Node_sets#node_sets.spilled.
+colored(Node_sets) -> Node_sets#node_sets.colored.
+    
+set_spilled(Spilled, Node_sets) -> Node_sets#node_sets{spilled = Spilled}.
+set_colored(Colored, Node_sets) -> Node_sets#node_sets{colored = Colored}.
+
+new() ->
+  #node_sets{spilled = [], colored = []}.
+
+add_spilled(Node, Node_sets) ->
+  set_spilled([Node | spilled(Node_sets)], Node_sets).
+
+add_colored(Node, Node_sets) ->
+  set_colored([Node | colored(Node_sets)], Node_sets).