Mercurial > hg > graal-jvmci-8
annotate graal/GraalCompiler/src/com/sun/c1x/ir/Invoke.java @ 2540:3fc322165071
More flags clean up.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 20:27:43 +0200 |
parents | e1ba5a93e997 |
children | 0f9eeb15e636 |
rev | line source |
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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.bytecode.*; |
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29 import com.sun.cri.ci.*; |
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30 import com.sun.cri.ri.*; |
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31 |
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32 /** |
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33 * The {@code Invoke} instruction represents all kinds of method calls. |
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34 */ |
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35 public final class Invoke extends StateSplit { |
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36 |
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37 public final int opcode; |
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38 public final Value[] arguments; |
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39 public final RiMethod target; |
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40 public final RiType returnType; |
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41 |
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42 /** |
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43 * Constructs a new Invoke instruction. |
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44 * |
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45 * @param opcode the opcode of the invoke |
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46 * @param result the result type |
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47 * @param args the list of instructions producing arguments to the invocation, including the receiver object |
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48 * @param isStatic {@code true} if this call is static (no receiver object) |
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49 * @param target the target method being called |
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50 * @param stateBefore the state before executing the invocation |
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51 */ |
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52 public Invoke(int opcode, CiKind result, Value[] args, RiMethod target, RiType returnType, FrameState stateBefore) { |
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53 super(result, stateBefore); |
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54 this.opcode = opcode; |
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55 this.arguments = args; |
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56 this.target = target; |
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57 this.returnType = returnType; |
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58 if (isStatic() || args[0].isNonNull() || args[0].kind.isWord()) { |
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59 eliminateNullCheck(); |
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60 } |
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61 } |
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62 |
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63 /** |
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64 * Gets the opcode of this invoke instruction. |
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65 * @return the opcode |
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66 */ |
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67 public int opcode() { |
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68 return opcode; |
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69 } |
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70 |
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71 /** |
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72 * Checks whether this is an invocation of a static method. |
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73 * @return {@code true} if the invocation is a static invocation |
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74 */ |
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75 public boolean isStatic() { |
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76 return opcode == Bytecodes.INVOKESTATIC; |
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77 } |
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78 |
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79 @Override |
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80 public RiType declaredType() { |
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81 return returnType; |
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82 } |
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83 |
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84 /** |
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85 * Gets the instruction that produces the receiver object for this invocation, if any. |
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86 * @return the instruction that produces the receiver object for this invocation if any, {@code null} if this |
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87 * invocation does not take a receiver object |
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88 */ |
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89 public Value receiver() { |
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90 assert !isStatic(); |
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91 return arguments[0]; |
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92 } |
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93 |
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94 /** |
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95 * Gets the target method for this invocation instruction. |
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96 * @return the target method |
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97 */ |
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98 public RiMethod target() { |
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99 return target; |
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100 } |
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101 |
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102 /** |
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103 * Gets the list of instructions that produce input for this instruction. |
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104 * @return the list of instructions that produce input |
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105 */ |
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106 public Value[] arguments() { |
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107 return arguments; |
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108 } |
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109 |
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110 /** |
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111 * Checks whether this instruction can trap. |
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112 * @return {@code true}, conservatively assuming the called method may throw an exception |
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113 */ |
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114 @Override |
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115 public boolean canTrap() { |
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116 return true; |
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117 } |
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118 |
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119 /** |
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120 * Checks whether this invocation has a receiver object. |
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121 * @return {@code true} if this invocation has a receiver object; {@code false} otherwise, if this is a |
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122 * static call |
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123 */ |
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124 public boolean hasReceiver() { |
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125 return !isStatic(); |
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126 } |
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127 |
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128 @Override |
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129 public void inputValuesDo(ValueClosure closure) { |
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130 for (int i = 0; i < arguments.length; i++) { |
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131 Value arg = arguments[i]; |
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132 if (arg != null) { |
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133 arguments[i] = closure.apply(arg); |
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134 assert arguments[i] != null; |
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135 } |
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136 } |
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137 } |
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138 |
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139 @Override |
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140 public void accept(ValueVisitor v) { |
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141 v.visitInvoke(this); |
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142 } |
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143 |
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144 public CiKind[] signature() { |
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145 CiKind receiver = isStatic() ? null : target.holder().kind(); |
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146 return Util.signatureToKinds(target.signature(), receiver); |
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147 } |
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148 |
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149 @Override |
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150 public void print(LogStream out) { |
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151 int argStart = 0; |
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152 if (hasReceiver()) { |
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153 out.print(receiver()).print('.'); |
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154 argStart = 1; |
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155 } |
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156 |
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157 RiMethod target = target(); |
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158 out.print(target.name()).print('('); |
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159 Value[] arguments = arguments(); |
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160 for (int i = argStart; i < arguments.length; i++) { |
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161 if (i > argStart) { |
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162 out.print(", "); |
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163 } |
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164 out.print(arguments[i]); |
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165 } |
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166 out.print(CiUtil.format(") [method: %H.%n(%p):%r]", target, false)); |
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167 } |
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168 } |