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annotate graal/GraalCompiler/src/com/sun/c1x/lir/LIROp1.java @ 2731:a2f62de90c76

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Removed unused optimization settings. Removed unused imports.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Thu, 19 May 2011 17:20:55 +0200
parents 16b9a8b5ad39
children
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2507
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1 /*
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2 * Copyright (c) 2009, 2010, 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.lir;
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24
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25 import com.sun.c1x.util.*;
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26 import com.sun.cri.ci.*;
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27
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28 /**
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29 * The {@code LIROp1} class definition. The LIROp1 instruction has only one input operand.
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30 *
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31 * @author Marcelo Cintra
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32 */
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33 public class LIROp1 extends LIRInstruction {
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34
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35 public enum LIRMoveKind {
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36 Normal, Volatile, Unaligned
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37 }
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38
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39 public final CiKind kind; // the operand type
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40 public final LIRMoveKind moveKind; // flag that indicate the kind of move
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41
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42 /**
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43 * Constructs a new LIROp1 instruction.
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44 *
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45 * @param opcode the instruction's opcode
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46 * @param opr the first input operand
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47 * @param result the operand that holds the result of this instruction
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48 * @param kind the kind of this instruction
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49 * @param info the object holding information needed to emit debug information
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50 */
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51 public LIROp1(LIROpcode opcode, CiValue opr, CiValue result, CiKind kind, LIRDebugInfo info) {
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52 super(opcode, result, info, false, 0, 0, opr);
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53 this.kind = kind;
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54 this.moveKind = LIRMoveKind.Normal;
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55 assert isInRange(opcode, LIROpcode.BeginOp1, LIROpcode.EndOp1) : "The " + opcode + " is not a valid LIROp1 opcode";
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56 }
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57
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58 /**
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59 * Constructs a new LIROp1 instruction.
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60 *
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61 * @param opcode the instruction's opcode
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62 * @param opr the first input operand
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63 * @param result the operand that holds the result of this instruction
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64 * @param kind the kind of this instruction
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65 */
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66 public LIROp1(LIROpcode opcode, CiValue opr, CiValue result, CiKind kind) {
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67 this(opcode, opr, result, kind, null);
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68 }
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69
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70 /**
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71 * Constructs a new LIROp1 instruction.
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72 *
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73 * @param opcode the instruction's opcode
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74 * @param opr the first input operand
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75 * @param result the operand that holds the result of this instruction
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76 */
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77 public LIROp1(LIROpcode opcode, CiValue opr, CiValue result) {
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78 this(opcode, opr, result, CiKind.Illegal);
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79 }
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80
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81 /**
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82 * Constructs a new LIROp1 instruction.
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83 *
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84 * @param opcode the instruction's opcode
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85 * @param opr the first input operand
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86 */
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87 public LIROp1(LIROpcode opcode, CiValue opr) {
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88 this(opcode, opr, CiValue.IllegalValue);
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89 }
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90
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91 /**
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92 * Constructs a new LIROp1 instruction.
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93 *
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94 * @param moveKind the kind of move the instruction represents
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95 * @param operand the single input operand
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96 * @param result the operand that holds the result of this instruction
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97 * @param kind the kind of this instruction
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98 * @param info the object holding information needed to emit debug information
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99 */
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100 public LIROp1(LIRMoveKind moveKind, CiValue operand, CiValue result, CiKind kind, LIRDebugInfo info) {
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101 super(LIROpcode.Move, result, info, false, 0, 0, operand);
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102 this.kind = kind;
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103 this.moveKind = moveKind;
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104 }
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105
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106 /**
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107 * Constructs a new LIROp1 instruction.
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108 *
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109 * @param opcode the instruction's opcode
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110 * @param opr the first input operand
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111 * @param info the object holding information needed to emit debug information
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112 */
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113 public LIROp1(LIROpcode opcode, CiValue opr, LIRDebugInfo info) {
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114 super(opcode, CiValue.IllegalValue, info, false, 0, 0, opr);
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115 this.kind = CiKind.Illegal;
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116 this.moveKind = LIRMoveKind.Normal;
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117 assert isInRange(opcode, LIROpcode.BeginOp1, LIROpcode.EndOp1) : "The " + opcode + " is not a valid LIROp1 opcode";
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118 }
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119
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120 /**
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121 * Gets the input operand of this instruction.
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122 *
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123 * @return opr the input operand.
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124 */
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125 public CiValue operand() {
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126 return operand(0);
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127 }
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128
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129 /**
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130 * Gets the kind of move of this instruction.
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131 *
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132 * @return flags the constant that represents the move kind.
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133 */
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134 public LIRMoveKind moveKind() {
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135 assert code == LIROpcode.Move : "The opcode must be of type LIROpcode.Move in LIROp1";
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136 return moveKind;
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137 }
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138
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139 @Override
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140 public void emitCode(LIRAssembler masm) {
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141 masm.emitOp1(this);
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142 }
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143
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144 @Override
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145 public String name() {
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146 if (code == LIROpcode.Move) {
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147 switch (moveKind()) {
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148 case Normal:
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149 return "move";
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150 case Unaligned:
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151 return "unaligned move";
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152 case Volatile:
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153 return "volatile_move";
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154 default:
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155 throw Util.shouldNotReachHere();
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156 }
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157 } else {
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158 return super.name();
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159 }
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160 }
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161
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162 @Override
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163 public boolean verify() {
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164 switch (code) {
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165 case Move:
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166 assert (operand().isLegal()) && (result().isLegal()) : "Operand and result must be valid in a LIROp1 move instruction.";
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167 break;
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168 case NullCheck:
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169 assert operand().isVariableOrRegister() : "Operand must be a register in a LIROp1 null check instruction.";
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170 break;
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171 case Return:
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172 assert operand().isVariableOrRegister() || operand().isIllegal() : "Operand must be (register | illegal) in a LIROp1 return instruction.";
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173 break;
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174 }
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175 return true;
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176 }
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177 }