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comparison graal/GraalCompiler/src/com/sun/c1x/graph/CompilerGraph.java @ 2840:75e0d39833a0

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new CompilerGraph, create only one Return and one Unwind per CompilerGraph
author Lukas Stadler <lukas.stadler@jku.at>
date Tue, 31 May 2011 16:53:19 +0200
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2837:7b5831f0e913 2840:75e0d39833a0
1 /*
2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.sun.c1x.graph;
24
25 import com.oracle.graal.graph.*;
26 import com.sun.c1x.ir.*;
27
28
29 public class CompilerGraph extends Graph {
30
31 private Return returnSingleton;
32 private Unwind unwindSingleton;
33
34 public Return createReturn(Value result) {
35 assert returnSingleton == null;
36 returnSingleton = new Return(result, this);
37 return returnSingleton;
38 }
39
40 public Return getReturn() {
41 return returnSingleton;
42 }
43
44 public Unwind createUnwind(Value exception) {
45 assert unwindSingleton == null;
46 unwindSingleton = new Unwind(exception, this);
47 return unwindSingleton;
48 }
49
50 public Unwind getUnwind() {
51 return unwindSingleton;
52 }
53 }