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annotate graal/GraalCompiler/src/com/sun/c1x/ir/NativeCall.java @ 2509:16b9a8b5ad39

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Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 27 Apr 2011 11:50:44 +0200
parents graal/Compiler/src/com/sun/c1x/ir/NativeCall.java@9ec15d6914ca
children
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2507
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1 /*
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2 * Copyright (c) 2010, 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
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25 import com.sun.c1x.debug.*;
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26 import com.sun.c1x.value.*;
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27 import com.sun.cri.ri.*;
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28
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29 /**
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30 * Represents a call to a native function from within a native method stub.
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31 *
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32 * @author Doug Simon
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33 */
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34 public final class NativeCall extends StateSplit {
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35
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36 /**
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37 * The instruction that produces the native function address for this native call.
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38 */
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39 private Value address;
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40
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41 /**
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42 * The native method for this native call.
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43 */
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44 public final RiMethod nativeMethod;
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45
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46 /**
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47 * The signature of the call which is derived from {@link #nativeMethod} but is not
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48 * the same as its {@linkplain RiMethod#signature() signature}.
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49 */
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50 public final RiSignature signature;
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51
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52 /**
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53 * The list of instructions that produce the arguments for this native call.
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54 */
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55 public final Value[] arguments;
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56
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57 /**
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58 * Constructs a new NativeCall instruction.
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59 *
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60 * @param nativeMethod TODO
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61 * @param signature TODO
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62 * @param address TODO
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63 * @param args the list of instructions producing arguments to the invocation
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64 * @param stateBefore the state before executing the invocation
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65 */
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66 public NativeCall(RiMethod nativeMethod, RiSignature signature, Value address, Value[] args, FrameState stateBefore) {
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67 super(signature.returnKind().stackKind(), stateBefore);
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68 this.address = address;
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69 this.nativeMethod = nativeMethod;
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70 this.arguments = args;
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71 this.signature = signature;
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72 assert nativeMethod.jniSymbol() != null;
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73 }
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74
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75 /**
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76 * The native function may call back into the VM which may call method that can trap.
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77 */
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78 @Override
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79 public boolean canTrap() {
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80 return true;
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81 }
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82
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83 /**
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84 * Gets the instruction that produces the native function address for this native call.
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85 * @return the instruction
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86 */
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87 public Value address() {
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88 return address;
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89 }
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90
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91 @Override
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92 public void inputValuesDo(ValueClosure closure) {
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93 for (int i = 0; i < arguments.length; i++) {
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94 Value arg = arguments[i];
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95 if (arg != null) {
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96 arguments[i] = closure.apply(arg);
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97 assert arguments[i] != null;
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98 }
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99 }
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100 address = closure.apply(address);
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101 }
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102
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103 @Override
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104 public void accept(ValueVisitor v) {
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105 v.visitNativeCall(this);
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106 }
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107
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108 @Override
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109 public void print(LogStream out) {
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110 out.print(nativeMethod.jniSymbol()).print('(');
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111 for (int i = 0; i < arguments.length; i++) {
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112 if (i > 0) {
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113 out.print(", ");
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114 }
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115 out.print(arguments[i]);
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116 }
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117 out.print(')');
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118 }
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119 }