Mercurial > hg > graal-compiler
annotate graal/com.oracle.max.graal.nodes/src/com/oracle/graal/nodes/calc/AndNode.java @ 5060:4ed4295ce15f
Update import statements.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Thu, 08 Mar 2012 19:11:12 +0100 |
parents | ed559a528128 |
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1 /* |
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2 * Copyright (c) 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.oracle.graal.nodes.calc; |
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24 |
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25 import com.oracle.max.cri.ci.*; |
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26 import com.oracle.graal.graph.*; |
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27 import com.oracle.graal.nodes.*; |
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28 import com.oracle.graal.nodes.spi.*; |
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29 |
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30 @NodeInfo(shortName = "&") |
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31 public final class AndNode extends LogicNode implements Canonicalizable, LIRLowerable { |
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32 |
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33 public AndNode(CiKind kind, ValueNode x, ValueNode y) { |
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34 super(kind, x, y); |
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35 } |
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36 |
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37 @Override |
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38 public ValueNode canonical(CanonicalizerTool tool) { |
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39 if (x() == y()) { |
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40 return x(); |
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41 } |
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42 if (x().isConstant() && !y().isConstant()) { |
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43 return graph().unique(new AndNode(kind(), y(), x())); |
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44 } |
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45 if (x().isConstant()) { |
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46 if (kind() == CiKind.Int) { |
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47 return ConstantNode.forInt(x().asConstant().asInt() & y().asConstant().asInt(), graph()); |
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48 } else { |
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49 assert kind() == CiKind.Long; |
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50 return ConstantNode.forLong(x().asConstant().asLong() & y().asConstant().asLong(), graph()); |
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51 } |
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52 } else if (y().isConstant()) { |
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53 if (kind() == CiKind.Int) { |
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54 int c = y().asConstant().asInt(); |
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55 if (c == -1) { |
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56 return x(); |
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57 } |
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58 if (c == 0) { |
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59 return ConstantNode.forInt(0, graph()); |
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60 } |
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61 } else { |
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62 assert kind() == CiKind.Long; |
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63 long c = y().asConstant().asLong(); |
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64 if (c == -1) { |
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65 return x(); |
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66 } |
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67 if (c == 0) { |
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68 return ConstantNode.forLong(0, graph()); |
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69 } |
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70 } |
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71 } |
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72 return this; |
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73 } |
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74 |
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75 @Override |
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76 public void generate(LIRGeneratorTool gen) { |
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77 gen.setResult(this, gen.emitAnd(gen.operand(x()), gen.operand(y()))); |
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78 } |
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79 } |