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annotate graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/nodes/AssertionNode.java @ 19403:61d3cb8e1280
Add generic parameter to NodeClass. Change Graph#getNodes(Class) to Graph#getNodes(NodeClass).
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Mon, 16 Feb 2015 17:47:43 +0100 |
parents | 7e2c87dae93e |
children | 8fc336a04d77 |
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1 /* |
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2 * Copyright (c) 2014, 2014, 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.replacements.nodes; |
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24 |
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25 import com.oracle.graal.compiler.common.*; |
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26 import com.oracle.graal.compiler.common.type.*; |
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27 import com.oracle.graal.graph.*; |
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28 import com.oracle.graal.graph.spi.*; |
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moved NodeInfo and friends into separate com.oracle.graal.nodeinfo project so that annotation processor can be applied to the base Node class
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29 import com.oracle.graal.nodeinfo.*; |
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30 import com.oracle.graal.nodes.*; |
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31 import com.oracle.graal.nodes.spi.*; |
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32 |
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33 /** |
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34 * Assertion nodes will go away as soon as the value evaluates to true. Compile-time assertions will |
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35 * fail if this has not happened by the time the node is lowered to LIR, while runtime assertions |
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36 * may need to insert a check. |
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37 */ |
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38 @NodeInfo |
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39 public final class AssertionNode extends FixedWithNextNode implements Lowerable, Canonicalizable, LIRLowerable { |
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40 |
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Add generic parameter to NodeClass. Change Graph#getNodes(Class) to Graph#getNodes(NodeClass).
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41 public static final NodeClass<AssertionNode> TYPE = NodeClass.get(AssertionNode.class); |
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42 @Input ValueNode value; |
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43 |
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44 protected final boolean compileTimeAssertion; |
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45 protected final String message; |
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46 |
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47 public AssertionNode(boolean compileTimeAssertion, ValueNode value, String message) { |
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48 super(TYPE, StampFactory.forVoid()); |
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49 this.value = value; |
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50 this.compileTimeAssertion = compileTimeAssertion; |
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51 this.message = message; |
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52 } |
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53 |
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54 public ValueNode value() { |
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55 return value; |
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56 } |
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57 |
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58 public String message() { |
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59 return message; |
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60 } |
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61 |
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62 @Override |
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63 public Node canonical(CanonicalizerTool tool) { |
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64 if (value.isConstant() && value.asJavaConstant().asInt() != 0) { |
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65 return null; |
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66 } |
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67 /* |
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68 * Assertions with a constant "false" value do not immediately cause an error, since they |
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69 * may be unreachable and could thus be removed by later optimizations. |
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70 */ |
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71 return this; |
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72 } |
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73 |
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74 public void lower(LoweringTool tool) { |
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75 if (!compileTimeAssertion) { |
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76 tool.getLowerer().lower(this, tool); |
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77 } |
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78 } |
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79 |
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80 public void generate(NodeLIRBuilderTool generator) { |
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81 assert compileTimeAssertion; |
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82 if (value.isConstant() && value.asJavaConstant().asInt() == 0) { |
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83 throw new GraalInternalError("%s: failed compile-time assertion: %s", this, message); |
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84 } else { |
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85 throw new GraalInternalError("%s: failed compile-time assertion (value %s): %s", this, value, message); |
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86 } |
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87 } |
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88 |
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89 @SuppressWarnings("unused") |
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90 @NodeIntrinsic |
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91 public static void assertion(@ConstantNodeParameter boolean compileTimeAssertion, boolean value, @ConstantNodeParameter String message) { |
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92 assert value : message; |
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93 } |
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94 } |