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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/calc/FloatConvertNode.java @ 14908:8db6e76cb658

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Formatter: Keep one enum constant per line
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 01 Apr 2014 14:09:03 +0200
parents f6630873316b
children d5a1206e1923
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
14000
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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1 /*
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Roland Schatz <roland.schatz@oracle.com>
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
958c99d0790c Split convert node into separate nodes for different conversions.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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4 *
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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5 * This code is free software; you can redistribute it and/or modify it
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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6 * under the terms of the GNU General Public License version 2 only, as
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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7 * published by the Free Software Foundation.
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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8 *
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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12 * version 2 for more details (a copy is included in the LICENSE file that
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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13 * accompanied this code).
958c99d0790c Split convert node into separate nodes for different conversions.
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14 *
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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15 * You should have received a copy of the GNU General Public License version
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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16 * 2 along with this work; if not, write to the Free Software Foundation,
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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18 *
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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20 * or visit www.oracle.com if you need additional information or have any
958c99d0790c Split convert node into separate nodes for different conversions.
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21 * questions.
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22 */
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23 package com.oracle.graal.nodes.calc;
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24
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25 import com.oracle.graal.api.meta.*;
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26 import com.oracle.graal.graph.*;
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27 import com.oracle.graal.graph.spi.*;
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28 import com.oracle.graal.nodes.*;
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29 import com.oracle.graal.nodes.extended.*;
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30 import com.oracle.graal.nodes.spi.*;
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31 import com.oracle.graal.nodes.type.*;
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32
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33 /**
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34 * A {@code FloatConvert} converts between integers and floating point numbers according to Java
958c99d0790c Split convert node into separate nodes for different conversions.
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35 * semantics.
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36 */
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37 public class FloatConvertNode extends ConvertNode implements Canonicalizable, Lowerable, ArithmeticLIRLowerable, MemoryArithmeticLIRLowerable {
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38
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39 public enum FloatConvert {
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8db6e76cb658 Formatter: Keep one enum constant per line
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40 F2I,
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41 D2I,
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42 F2L,
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43 D2L,
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44 I2F,
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45 L2F,
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46 D2F,
8db6e76cb658 Formatter: Keep one enum constant per line
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47 I2D,
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48 L2D,
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49 F2D;
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958c99d0790c Split convert node into separate nodes for different conversions.
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50
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51 public FloatConvert reverse() {
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52 switch (this) {
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53 case D2F:
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54 return F2D;
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55 case D2I:
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56 return I2D;
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57 case D2L:
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58 return L2D;
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59 case F2D:
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60 return D2F;
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61 case F2I:
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62 return I2F;
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63 case F2L:
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64 return L2F;
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65 case I2D:
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66 return D2I;
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67 case I2F:
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68 return F2I;
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69 case L2D:
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70 return D2L;
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71 case L2F:
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72 return F2L;
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73 default:
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74 throw GraalInternalError.shouldNotReachHere();
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75 }
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76 }
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77 }
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78
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79 private final FloatConvert op;
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80
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81 public FloatConvertNode(FloatConvert op, ValueNode input) {
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82 super(createStamp(op, input), input);
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83 this.op = op;
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84 }
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85
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86 private static Stamp createStamp(FloatConvert op, ValueNode input) {
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87 switch (op) {
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88 case I2F:
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89 case I2D:
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90 assert input.stamp() instanceof IntegerStamp && ((IntegerStamp) input.stamp()).getBits() == 32;
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91 break;
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92 case L2F:
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93 case L2D:
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94 assert input.stamp() instanceof IntegerStamp && ((IntegerStamp) input.stamp()).getBits() == 64;
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95 break;
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96 case F2I:
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97 case F2L:
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98 case F2D:
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99 assert input.stamp() instanceof FloatStamp && ((FloatStamp) input.stamp()).getBits() == 32;
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100 break;
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101 case D2I:
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102 case D2L:
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103 case D2F:
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104 assert input.stamp() instanceof FloatStamp && ((FloatStamp) input.stamp()).getBits() == 64;
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105 break;
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106 default:
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107 throw GraalInternalError.shouldNotReachHere();
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108 }
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109
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110 switch (op) {
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111 case F2I:
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112 case D2I:
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113 return StampFactory.forKind(Kind.Int);
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114 case F2L:
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115 case D2L:
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116 return StampFactory.forKind(Kind.Long);
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117 case I2F:
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118 case L2F:
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119 case D2F:
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120 return StampFactory.forKind(Kind.Float);
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121 case I2D:
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122 case L2D:
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123 case F2D:
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124 return StampFactory.forKind(Kind.Double);
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125 default:
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126 throw GraalInternalError.shouldNotReachHere();
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127 }
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128 }
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129
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130 public FloatConvert getOp() {
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131 return op;
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132 }
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133
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134 @Override
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135 public boolean inferStamp() {
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136 return updateStamp(createStamp(op, getInput()));
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137 }
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138
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139 private static Constant convert(FloatConvert op, Constant value) {
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140 switch (op) {
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141 case F2I:
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142 return Constant.forInt((int) value.asFloat());
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143 case D2I:
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144 return Constant.forInt((int) value.asDouble());
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145 case F2L:
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146 return Constant.forLong((long) value.asFloat());
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147 case D2L:
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148 return Constant.forLong((long) value.asDouble());
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149 case I2F:
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150 return Constant.forFloat(value.asInt());
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151 case L2F:
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152 return Constant.forFloat(value.asLong());
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153 case D2F:
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154 return Constant.forFloat((float) value.asDouble());
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155 case I2D:
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156 return Constant.forDouble(value.asInt());
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157 case L2D:
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158 return Constant.forDouble(value.asLong());
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159 case F2D:
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160 return Constant.forDouble(value.asFloat());
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161 default:
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162 throw GraalInternalError.shouldNotReachHere();
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163 }
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164 }
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165
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166 @Override
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167 public Constant convert(Constant c) {
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168 return convert(op, c);
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169 }
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170
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171 @Override
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172 public Constant reverse(Constant c) {
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173 return convert(op.reverse(), c);
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174 }
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175
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176 @Override
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177 public boolean isLossless() {
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178 switch (op) {
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179 case F2D:
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180 case I2D:
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181 return true;
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182 default:
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183 return false;
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184 }
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185 }
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186
14007
22804fafdb9f add canonicalization to FloatConvertNode
Andreas Woess <andreas.woess@jku.at>
parents: 14000
diff changeset
187 @Override
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Andreas Woess <andreas.woess@jku.at>
parents: 14000
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188 public Node canonical(CanonicalizerTool tool) {
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Andreas Woess <andreas.woess@jku.at>
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189 if (getInput().isConstant()) {
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parents: 14000
diff changeset
190 return ConstantNode.forPrimitive(evalConst(getInput().asConstant()), graph());
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parents: 14000
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191 } else if (getInput() instanceof FloatConvertNode) {
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Andreas Woess <andreas.woess@jku.at>
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diff changeset
192 FloatConvertNode other = (FloatConvertNode) getInput();
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parents: 14000
diff changeset
193 if (other.isLossless() && other.op == this.op.reverse()) {
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Andreas Woess <andreas.woess@jku.at>
parents: 14000
diff changeset
194 return other.getInput();
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195 }
22804fafdb9f add canonicalization to FloatConvertNode
Andreas Woess <andreas.woess@jku.at>
parents: 14000
diff changeset
196 }
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Andreas Woess <andreas.woess@jku.at>
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diff changeset
197 return this;
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Andreas Woess <andreas.woess@jku.at>
parents: 14000
diff changeset
198 }
22804fafdb9f add canonicalization to FloatConvertNode
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diff changeset
199
14000
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diff changeset
200 public void lower(LoweringTool tool) {
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201 tool.getLowerer().lower(this, tool);
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diff changeset
202 }
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Roland Schatz <roland.schatz@oracle.com>
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diff changeset
203
14888
f6630873316b Rename NodeLIRGenerator (and related classes and interfaces) to NodeLIRBuilder.
Josef Eisl <josef.eisl@jku.at>
parents: 14850
diff changeset
204 public void generate(NodeLIRBuiderTool gen) {
14841
47e4d2e01c6e Split LIRGenerator and fix AMD64 backend.
Josef Eisl <josef.eisl@jku.at>
parents: 14835
diff changeset
205 gen.setResult(this, gen.getLIRGeneratorTool().emitFloatConvert(op, gen.operand(getInput())));
14000
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
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206 }
14707
6ce6c4ccba8f initial support for memory arithmetic on x86
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14007
diff changeset
207
6ce6c4ccba8f initial support for memory arithmetic on x86
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14007
diff changeset
208 public boolean generate(MemoryArithmeticLIRLowerer gen, Access access) {
14718
25359cbb95e3 don't do subword float converts
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14707
diff changeset
209 Kind kind = access.nullCheckLocation().getValueKind();
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parents: 14707
diff changeset
210 if (kind != kind.getStackKind()) {
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Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14707
diff changeset
211 // Doesn't work for subword operations
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diff changeset
212 return false;
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Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14707
diff changeset
213 }
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Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14707
diff changeset
214
14707
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Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14007
diff changeset
215 Value result = gen.emitFloatConvertMemory(getOp(), access);
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diff changeset
216 if (result != null) {
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Tom Rodriguez <tom.rodriguez@oracle.com>
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diff changeset
217 gen.setResult(this, result);
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Tom Rodriguez <tom.rodriguez@oracle.com>
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diff changeset
218 }
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diff changeset
219 return result != null;
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Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14007
diff changeset
220 }
14000
958c99d0790c Split convert node into separate nodes for different conversions.
Roland Schatz <roland.schatz@oracle.com>
parents:
diff changeset
221 }