Mercurial > hg > graal-jvmci-8
annotate graal/GraalCompiler/src/com/sun/c1x/ir/Compare.java @ 2857:c6af2af32b3d
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author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Tue, 07 Jun 2011 15:59:08 +0200 |
parents | 3a4ad04d60a1 c6bdec623ef9 |
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1 /* |
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2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.sun.c1x.ir; |
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24 |
2586 | 25 import com.oracle.graal.graph.*; |
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26 import com.sun.c1x.debug.*; |
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27 import com.sun.cri.bytecode.*; |
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28 import com.sun.cri.ci.*; |
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29 |
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30 /** |
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31 * The {@code CompareOp} instruction represents comparisons such as equals, not equal, etc. |
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32 */ |
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33 public final class Compare extends Binary { |
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34 |
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35 private static final int INPUT_COUNT = 0; |
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36 private static final int SUCCESSOR_COUNT = 0; |
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37 |
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38 /** |
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39 * Creates a new compare operation. |
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40 * @param opcode the bytecode opcode |
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41 * @param kind the result kind |
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42 * @param x the first input |
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43 * @param y the second input |
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44 */ |
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45 public Compare(int opcode, CiKind kind, Value x, Value y, Graph graph) { |
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46 super(kind, opcode, x, y, INPUT_COUNT, SUCCESSOR_COUNT, graph); |
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47 } |
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48 |
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49 @Override |
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50 public void accept(ValueVisitor v) { |
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51 v.visitCompare(this); |
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52 } |
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53 |
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54 @Override |
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55 public void print(LogStream out) { |
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56 out.print(x()). |
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57 print(' '). |
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58 print(Bytecodes.operator(opcode)). |
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59 print(' '). |
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60 print(y()); |
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61 } |
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62 |
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63 @Override |
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64 public Node copy(Graph into) { |
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65 Compare x = new Compare(opcode, kind, null, null, into); |
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66 return x; |
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67 } |
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68 } |