Mercurial > hg > graal-jvmci-8
comparison graal/Compiler/src/com/sun/c1x/ir/Goto.java @ 2507:9ec15d6914ca
Pull over of compiler from maxine repository.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:43:22 +0200 |
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2506:4a3bf8a5bf41 | 2507:9ec15d6914ca |
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1 /* | |
2 * Copyright (c) 2009, 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.ir; | |
24 | |
25 import com.sun.c1x.debug.*; | |
26 import com.sun.c1x.value.*; | |
27 import com.sun.cri.ci.*; | |
28 | |
29 /** | |
30 * The {@code Goto} instruction represents the end of a block with an unconditional jump to another block. | |
31 * | |
32 * @author Ben L. Titzer | |
33 */ | |
34 public final class Goto extends BlockEnd { | |
35 | |
36 /** | |
37 * Constructs a new Goto instruction. | |
38 * @param succ the successor block of the goto | |
39 * @param stateAfter the frame state at the end of this block | |
40 * @param isSafepoint {@code true} if the goto should be considered a safepoint (e.g. backward branch) | |
41 */ | |
42 public Goto(BlockBegin succ, FrameState stateAfter, boolean isSafepoint) { | |
43 super(CiKind.Illegal, stateAfter, isSafepoint); | |
44 successors.add(succ); | |
45 } | |
46 | |
47 @Override | |
48 public void accept(ValueVisitor v) { | |
49 v.visitGoto(this); | |
50 } | |
51 | |
52 @Override | |
53 public void print(LogStream out) { | |
54 out.print("goto B").print(defaultSuccessor().blockID); | |
55 if (isSafepoint()) { | |
56 out.print(" (safepoint)"); | |
57 } | |
58 } | |
59 } |