Mercurial > hg > truffle
annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/AndNode.java @ 19526:8fc336a04d77
Create TYPE fields for LIRInstruction and CompositeValue. Renaming NodeClass#get to NodeClass#create.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 20 Feb 2015 22:22:55 +0100 |
parents | 61d3cb8e1280 |
children | f7c6b33489c9 |
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1 /* |
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2 * Copyright (c) 2011, 2015, 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.graal.api.code.*; |
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26 import com.oracle.graal.api.meta.*; |
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27 import com.oracle.graal.compiler.common.type.*; |
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28 import com.oracle.graal.compiler.common.type.ArithmeticOpTable.*; |
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29 import com.oracle.graal.compiler.common.type.ArithmeticOpTable.BinaryOp.*; |
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30 import com.oracle.graal.graph.*; |
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31 import com.oracle.graal.graph.spi.*; |
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32 import com.oracle.graal.lir.gen.*; |
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33 import com.oracle.graal.nodeinfo.*; |
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34 import com.oracle.graal.nodes.*; |
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35 import com.oracle.graal.nodes.spi.*; |
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36 import com.oracle.graal.nodes.util.*; |
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37 |
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38 @NodeInfo(shortName = "&") |
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39 public final class AndNode extends BinaryArithmeticNode<And> implements NarrowableArithmeticNode { |
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40 |
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41 public static final NodeClass<AndNode> TYPE = NodeClass.create(AndNode.class); |
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42 |
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43 public AndNode(ValueNode x, ValueNode y) { |
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44 super(TYPE, ArithmeticOpTable::getAnd, x, y); |
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45 } |
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46 |
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47 public static ValueNode create(ValueNode x, ValueNode y) { |
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48 BinaryOp<And> op = ArithmeticOpTable.forStamp(x.stamp()).getAnd(); |
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49 Stamp stamp = op.foldStamp(x.stamp(), y.stamp()); |
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50 ConstantNode tryConstantFold = tryConstantFold(op, x, y, stamp); |
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51 if (tryConstantFold != null) { |
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52 return tryConstantFold; |
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53 } else { |
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54 return new AndNode(x, y); |
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55 } |
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56 } |
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57 |
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58 @Override |
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59 public ValueNode canonical(CanonicalizerTool tool, ValueNode forX, ValueNode forY) { |
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60 ValueNode ret = super.canonical(tool, forX, forY); |
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61 if (ret != this) { |
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62 return ret; |
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63 } |
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64 |
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65 if (GraphUtil.unproxify(forX) == GraphUtil.unproxify(forY)) { |
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66 return forX; |
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67 } |
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68 if (forX.isConstant() && !forY.isConstant()) { |
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69 return new AndNode(forY, forX); |
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70 } |
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71 if (forY.isConstant()) { |
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72 Constant c = forY.asConstant(); |
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73 if (getOp(forX, forY).isNeutral(c)) { |
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74 return forX; |
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75 } |
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76 |
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77 if (c instanceof PrimitiveConstant && ((PrimitiveConstant) c).getKind().isNumericInteger()) { |
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78 long rawY = ((PrimitiveConstant) c).asLong(); |
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79 long mask = CodeUtil.mask(PrimitiveStamp.getBits(stamp())); |
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80 if ((rawY & mask) == 0) { |
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81 return ConstantNode.forIntegerStamp(stamp(), 0); |
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82 } |
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83 if (forX instanceof SignExtendNode) { |
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84 SignExtendNode ext = (SignExtendNode) forX; |
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85 if (rawY == ((1L << ext.getInputBits()) - 1)) { |
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86 return new ZeroExtendNode(ext.getValue(), ext.getResultBits()); |
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87 } |
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88 } |
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89 IntegerStamp xStamp = (IntegerStamp) forX.stamp(); |
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90 if (((xStamp.upMask() | xStamp.downMask()) & ~rawY) == 0) { |
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91 // No bits are set which are outside the mask, so the mask will have no effect. |
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92 return forX; |
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93 } |
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94 } |
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95 |
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96 return reassociate(this, ValueNode.isConstantPredicate(), forX, forY); |
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97 } |
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98 return this; |
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99 } |
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100 |
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101 @Override |
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102 public void generate(NodeMappableLIRBuilder builder, ArithmeticLIRGenerator gen) { |
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103 builder.setResult(this, gen.emitAnd(builder.operand(getX()), builder.operand(getY()))); |
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104 } |
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105 } |