Mercurial > hg > graal-jvmci-8
annotate graal/Compiler/src/com/sun/c1x/ir/Invoke.java @ 2507:9ec15d6914ca
Pull over of compiler from maxine repository.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:43:22 +0200 |
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2507
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1 /* |
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2 * Copyright (c) 2009, 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.util.*; |
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27 import com.sun.c1x.value.*; |
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28 import com.sun.cri.ci.*; |
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29 import com.sun.cri.ri.*; |
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30 |
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31 /** |
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32 * The {@code Invoke} instruction represents all kinds of method calls. |
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33 * |
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34 * @author Ben L. Titzer |
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35 */ |
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36 public final class Invoke extends StateSplit { |
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37 |
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38 public final int opcode; |
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39 public final Value[] arguments; |
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40 public final RiMethod target; |
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41 public final RiType returnType; |
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42 |
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43 /** |
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44 * Constructs a new Invoke instruction. |
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45 * |
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46 * @param opcode the opcode of the invoke |
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47 * @param result the result type |
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48 * @param args the list of instructions producing arguments to the invocation, including the receiver object |
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49 * @param isStatic {@code true} if this call is static (no receiver object) |
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50 * @param target the target method being called |
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51 * @param stateBefore the state before executing the invocation |
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52 */ |
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53 public Invoke(int opcode, CiKind result, Value[] args, boolean isStatic, RiMethod target, RiType returnType, FrameState stateBefore) { |
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54 super(result, stateBefore); |
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55 this.opcode = opcode; |
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56 this.arguments = args; |
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57 this.target = target; |
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58 this.returnType = returnType; |
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59 if (isStatic) { |
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60 setFlag(Flag.IsStatic); |
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61 eliminateNullCheck(); |
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62 } else if (args[0].isNonNull() || args[0].kind.isWord()) { |
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63 eliminateNullCheck(); |
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64 } |
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65 } |
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66 |
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67 /** |
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68 * Gets the opcode of this invoke instruction. |
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69 * @return the opcode |
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70 */ |
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71 public int opcode() { |
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72 return opcode; |
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73 } |
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74 |
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75 /** |
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76 * Checks whether this is an invocation of a static method. |
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77 * @return {@code true} if the invocation is a static invocation |
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78 */ |
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79 public boolean isStatic() { |
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80 return checkFlag(Flag.IsStatic); |
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81 } |
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82 |
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83 @Override |
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84 public RiType declaredType() { |
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85 return returnType; |
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86 } |
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87 |
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88 /** |
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89 * Gets the instruction that produces the receiver object for this invocation, if any. |
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90 * @return the instruction that produces the receiver object for this invocation if any, {@code null} if this |
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91 * invocation does not take a receiver object |
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92 */ |
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93 public Value receiver() { |
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94 assert !isStatic(); |
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95 return arguments[0]; |
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96 } |
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97 |
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98 /** |
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99 * Gets the target method for this invocation instruction. |
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100 * @return the target method |
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101 */ |
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102 public RiMethod target() { |
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103 return target; |
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104 } |
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105 |
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106 /** |
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107 * Gets the list of instructions that produce input for this instruction. |
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108 * @return the list of instructions that produce input |
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109 */ |
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110 public Value[] arguments() { |
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111 return arguments; |
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112 } |
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113 |
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114 /** |
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115 * Checks whether this instruction can trap. |
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116 * @return {@code true}, conservatively assuming the called method may throw an exception |
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117 */ |
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118 @Override |
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119 public boolean canTrap() { |
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120 return true; |
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121 } |
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122 |
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123 /** |
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124 * Checks whether this invocation has a receiver object. |
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125 * @return {@code true} if this invocation has a receiver object; {@code false} otherwise, if this is a |
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126 * static call |
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127 */ |
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128 public boolean hasReceiver() { |
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129 return !isStatic(); |
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130 } |
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131 |
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132 @Override |
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133 public void inputValuesDo(ValueClosure closure) { |
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134 for (int i = 0; i < arguments.length; i++) { |
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135 Value arg = arguments[i]; |
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136 if (arg != null) { |
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137 arguments[i] = closure.apply(arg); |
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138 assert arguments[i] != null; |
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139 } |
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140 } |
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141 } |
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142 |
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143 @Override |
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144 public void accept(ValueVisitor v) { |
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145 v.visitInvoke(this); |
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146 } |
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147 |
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148 public CiKind[] signature() { |
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149 CiKind receiver = isStatic() ? null : target.holder().kind(); |
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150 return Util.signatureToKinds(target.signature(), receiver); |
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151 } |
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152 |
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153 @Override |
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154 public void print(LogStream out) { |
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155 int argStart = 0; |
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156 if (hasReceiver()) { |
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157 out.print(receiver()).print('.'); |
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158 argStart = 1; |
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159 } |
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160 |
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161 RiMethod target = target(); |
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162 out.print(target.name()).print('('); |
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163 Value[] arguments = arguments(); |
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164 for (int i = argStart; i < arguments.length; i++) { |
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165 if (i > argStart) { |
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166 out.print(", "); |
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167 } |
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168 out.print(arguments[i]); |
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169 } |
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170 out.print(CiUtil.format(") [method: %H.%n(%p):%r]", target, false)); |
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171 } |
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172 } |