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-rw-r--r--lib/hipe/regalloc/hipe_node_sets.erl48
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
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index 0000000000..b5e2971c4d
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+++ b/lib/hipe/regalloc/hipe_node_sets.erl
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+%% -*- 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).