Mercurial > hg > graal-jvmci-8
annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/call/SLInvokeNode.java @ 14628:a08b8694f556
Truffle: Node API changes
deprecate adoptChild, no longer needed in constructor
add Node#insert for inserting new nodes into the tree (previously adoptChild)
add Node#adoptChildren() helper method that adopts all (direct and indirect) children of a node, automatically called in TruffleRuntime#createCallTarget
author | Andreas Woess <andreas.woess@jku.at> |
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date | Wed, 19 Mar 2014 23:11:46 +0100 |
parents | 89ac75425681 |
children | 64dcb92ee75a |
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1 /* |
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2 * Copyright (c) 2013, 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.truffle.sl.nodes.call; |
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24 |
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25 import com.oracle.truffle.api.*; |
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26 import com.oracle.truffle.api.dsl.*; |
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27 import com.oracle.truffle.api.frame.*; |
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28 import com.oracle.truffle.api.nodes.*; |
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29 import com.oracle.truffle.sl.nodes.*; |
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30 import com.oracle.truffle.sl.runtime.*; |
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31 |
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32 /** |
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33 * The node for function invocation in SL. Since SL has first class functions, the |
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34 * {@link SLFunction target function} can be computed by an {@link #functionNode arbitrary |
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35 * expression}. This node is responsible for evaluating this expression, as well as evaluating the |
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36 * {@link #argumentNodes arguments}. The actual dispatch is then delegated to a chain of |
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37 * {@link SLAbstractDispatchNode}s that form a polymorphic inline cache. |
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38 */ |
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39 @NodeInfo(shortName = "invoke") |
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40 public final class SLInvokeNode extends SLExpressionNode { |
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41 |
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42 public static SLInvokeNode create(SLExpressionNode function, SLExpressionNode[] arguments) { |
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43 return new SLInvokeNode(function, arguments, new SLUninitializedDispatchNode()); |
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44 } |
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45 |
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46 @Child protected SLExpressionNode functionNode; |
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47 @Children protected final SLExpressionNode[] argumentNodes; |
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48 @Child protected SLAbstractDispatchNode dispatchNode; |
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49 |
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50 private SLInvokeNode(SLExpressionNode functionNode, SLExpressionNode[] argumentNodes, SLAbstractDispatchNode dispatchNode) { |
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51 this.functionNode = functionNode; |
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52 this.argumentNodes = argumentNodes; |
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53 this.dispatchNode = dispatchNode; |
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54 } |
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55 |
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56 @Override |
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57 @ExplodeLoop |
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58 public Object executeGeneric(VirtualFrame frame) { |
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59 SLFunction function = evaluateFunction(frame); |
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60 |
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61 /* |
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62 * The number of arguments is constant for one invoke node. During compilation, the loop is |
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63 * unrolled and the execute methods of all arguments are inlined. This is triggered by the |
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64 * ExplodeLoop annotation on the method. The compiler assertion below illustrates that the |
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65 * array length is really constant. |
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66 */ |
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67 CompilerAsserts.compilationConstant(argumentNodes.length); |
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68 |
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69 Object[] argumentValues = new Object[argumentNodes.length]; |
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70 for (int i = 0; i < argumentNodes.length; i++) { |
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71 argumentValues[i] = argumentNodes[i].executeGeneric(frame); |
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72 } |
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73 SLArguments arguments = new SLArguments(argumentValues); |
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74 |
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75 return dispatchNode.executeDispatch(frame, function, arguments); |
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76 } |
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77 |
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78 private SLFunction evaluateFunction(VirtualFrame frame) { |
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79 try { |
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80 /* |
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81 * The function node must evaluate to a SLFunction value, so we call |
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82 * function-specialized method. |
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83 */ |
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84 return functionNode.executeFunction(frame); |
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85 } catch (UnexpectedResultException ex) { |
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86 /* |
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87 * The function node evaluated to a non-function result. This is a type error in the SL |
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88 * program. We report it with the same exception that Truffle DSL generated nodes use to |
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89 * report type errors. |
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90 */ |
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91 throw new UnsupportedSpecializationException(this, new Node[]{functionNode}, ex.getResult()); |
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92 } |
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93 } |
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94 } |