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annotate graal/GraalCompiler/src/com/sun/c1x/target/amd64/AMD64XirAssembler.java @ 2700:d06cff53b77e

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More cleanup.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 18 May 2011 16:09:31 +0200
parents bd4c3be86fb7
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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.target.amd64;
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24
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25 import static com.sun.cri.xir.XirTemplate.GlobalFlags.*;
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26
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27 import java.util.*;
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28
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0ea5f12e873a use com.oracle.max.asm project for assembler
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29 import com.oracle.max.asm.target.amd64.*;
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30 import com.sun.cri.ci.*;
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31 import com.sun.cri.xir.*;
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32
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33 /**
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34 * AMD64 version of {@link CiXirAssembler}.
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35 *
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36 * @author Thomas Wuerthinger
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37 *
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38 */
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39 public class AMD64XirAssembler extends CiXirAssembler {
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40
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41 @Override
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42 protected XirTemplate buildTemplate(String name, boolean isStub) {
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43 List<XirInstruction> fastPath = new ArrayList<XirInstruction>(instructions.size());
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44 List<XirInstruction> slowPath = new ArrayList<XirInstruction>();
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45 List<XirTemplate> calleeTemplates = new ArrayList<XirTemplate>();
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46
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47 int flags = 0;
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48
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49 if (isStub) {
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50 flags |= GLOBAL_STUB.mask;
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51 }
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52
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53 List<XirInstruction> currentList = fastPath;
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54
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55 XirOperand fixedRDX = null;
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56 XirOperand fixedRAX = null;
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57 XirOperand fixedRCX = null;
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58 XirOperand fixedRSI = null;
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59 XirOperand fixedRDI = null;
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60 HashSet<XirLabel> boundLabels = new HashSet<XirLabel>();
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61
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62 for (XirInstruction i : instructions) {
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63 boolean appended = false;
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64 switch (i.op) {
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65 case Mov:
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66 break;
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67
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68 case Add:
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69 case Sub:
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70 case Div:
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71 case Mul:
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72 case Mod:
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73 case Shl:
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74 case Shr:
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75 case And:
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76 case Or:
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77 case Xor:
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78 // Convert to two operand form
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79 XirOperand xOp = i.x();
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80 if (i.op == XirOp.Div || i.op == XirOp.Mod) {
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81 if (fixedRDX == null) {
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82 fixedRDX = createRegisterTemp("divModTemp", CiKind.Int, AMD64.rdx);
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83 }
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84 // Special treatment to make sure that the left input of % and / is in RAX
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85 if (fixedRAX == null) {
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86 fixedRAX = createRegisterTemp("divModLeftInput", CiKind.Int, AMD64.rax);
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87 }
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88 currentList.add(new XirInstruction(i.x().kind, XirOp.Mov, fixedRAX, i.x()));
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89 xOp = fixedRAX;
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90 } else {
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91 if (i.result != i.x()) {
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92 currentList.add(new XirInstruction(i.result.kind, XirOp.Mov, i.result, i.x()));
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93 xOp = i.result;
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94 }
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95 }
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96
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97 XirOperand yOp = i.y();
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98 if ((i.op == XirOp.Shl || i.op == XirOp.Shr) && (!(i.y() instanceof XirConstantOperand))) {
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99 // Special treatment to make sure that the shift count is always in RCX
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100 if (fixedRCX == null) {
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101 fixedRCX = createRegisterTemp("fixedShiftCount", i.y().kind, AMD64.rcx);
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102 }
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103 currentList.add(new XirInstruction(i.result.kind, XirOp.Mov, fixedRCX, i.y()));
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104 yOp = fixedRCX;
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105 } else if (i.op == XirOp.Mul && (i.y() instanceof XirConstantOperand)) {
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106 // Cannot multiply directly with a constant, so introduce a new temporary variable
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107 XirOperand tempLocation = createTemp("mulTempLocation", i.y().kind);
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108 currentList.add(new XirInstruction(i.result.kind, XirOp.Mov, tempLocation, i.y()));
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109 yOp = tempLocation;
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110
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111 }
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112
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113 if (xOp != i.x() || yOp != i.y()) {
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114 currentList.add(new XirInstruction(i.result.kind, i.op, i.result, xOp, yOp));
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115 appended = true;
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116 }
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117 break;
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118
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119 case RepeatMoveWords:
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120 case RepeatMoveBytes:
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121 if (fixedRSI == null) {
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122 fixedRSI = createRegisterTemp("fixedRSI", CiKind.Word, AMD64.rsi);
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123 }
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124 if (fixedRDI == null) {
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125 fixedRDI = createRegisterTemp("fixedRDI", CiKind.Word, AMD64.rdi);
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126 }
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127 if (fixedRCX == null) {
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128 fixedRCX = createRegisterTemp("fixedRCX", CiKind.Word, AMD64.rcx);
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129 }
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130 currentList.add(new XirInstruction(CiKind.Word, XirOp.Mov, fixedRSI, i.x()));
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131 currentList.add(new XirInstruction(CiKind.Word, XirOp.Mov, fixedRDI, i.y()));
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132 currentList.add(new XirInstruction(CiKind.Word, XirOp.Mov, fixedRCX, i.z()));
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133 currentList.add(new XirInstruction(CiKind.Illegal, i.op, i.result, fixedRSI, fixedRDI, fixedRCX));
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134 appended = true;
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135 break;
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136
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137 case NullCheck:
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138 case PointerLoad:
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139 case LoadEffectiveAddress:
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140 case PointerStore:
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141 case PointerLoadDisp:
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142 case PointerStoreDisp:
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143 break;
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144 case PointerCAS:
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145 if (fixedRAX == null) {
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146 fixedRAX = createRegisterTemp("fixedRAX", CiKind.Word, AMD64.rax);
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147 }
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148 // x = source of cmpxch
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149 // y = new value
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150 // z = old value (i.e., the one compared to). Must be in RAX (and so must the result).
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151 currentList.add(new XirInstruction(CiKind.Word, XirOp.Mov, fixedRAX, i.z()));
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152 currentList.add(new XirInstruction(i.kind, i.op, i.result, i.x(), i.y(), fixedRAX));
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153 appended = true;
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154 break;
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155 case CallStub:
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156 flags |= HAS_STUB_CALL.mask;
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157 calleeTemplates.add((XirTemplate) i.extra);
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158 break;
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159 case CallRuntime:
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160 flags |= HAS_RUNTIME_CALL.mask;
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161 break;
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162 case Jmp:
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163 // jmp can be either into the snippet or to a runtime target
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164 flags |= i.extra instanceof XirLabel ? HAS_CONTROL_FLOW.mask : HAS_RUNTIME_CALL.mask;
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165 break;
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166 case Jeq:
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167 case Jneq:
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168 case Jgt:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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169 case Jgteq:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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170 case Jugteq:
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171 case Jlt:
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172 case Jlteq:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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173 case DecAndJumpNotZero:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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174 case Jbset:
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175 flags |= HAS_CONTROL_FLOW.mask;
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176 break;
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177 case Bind:
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178 XirLabel label = (XirLabel) i.extra;
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179 currentList = label.inline ? fastPath : slowPath;
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180 assert !boundLabels.contains(label) : "label may be bound only once";
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181 boundLabels.add(label);
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182 break;
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183 case Safepoint:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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184 case Align:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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185 case StackOverflowCheck:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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186 case PushFrame:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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187 case PopFrame:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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188 case Push:
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189 case Pop:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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190 case Mark:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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191 case Nop:
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Thomas Wuerthinger <thomas@wuerthinger.net>
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192 case RawBytes:
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193 case ShouldNotReachHere:
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194 break;
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195 default:
2697
bd4c3be86fb7 Backend clean up.
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parents: 2677
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196 assert false : "Unknown XIR operation " + i.op;
2507
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197 }
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198 if (!appended) {
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199 currentList.add(i);
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200 }
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201 }
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202 for (XirLabel label : labels) {
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203 assert boundLabels.contains(label) : "label " + label.name + " is not bound!";
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204 }
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205 XirInstruction[] fp = fastPath.toArray(new XirInstruction[fastPath.size()]);
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206 XirInstruction[] sp = slowPath.size() > 0 ? slowPath.toArray(new XirInstruction[slowPath.size()]) : null;
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207 XirLabel[] xirLabels = labels.toArray(new XirLabel[labels.size()]);
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208 XirParameter[] xirParameters = parameters.toArray(new XirParameter[parameters.size()]);
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209 XirTemp[] temporaryOperands = temps.toArray(new XirTemp[temps.size()]);
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210 XirConstant[] constantOperands = constants.toArray(new XirConstant[constants.size()]);
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211 XirTemplate[] calleeTemplateArray = calleeTemplates.toArray(new XirTemplate[calleeTemplates.size()]);
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212 XirMark[] marksArray = marks.toArray(new XirMark[marks.size()]);
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213 return new XirTemplate(name, this.variableCount, this.allocateResultOperand, resultOperand, fp, sp, xirLabels, xirParameters, temporaryOperands, constantOperands, flags, calleeTemplateArray, marksArray, outgoingStackSize);
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214 }
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215
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216 @Override
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217 public CiXirAssembler copy() {
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218 return new AMD64XirAssembler();
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219 }
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220 }