annotate src/share/vm/c1/c1_Instruction.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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1 /*
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2 * Copyright 1999-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 // Predefined classes
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26 class ciField;
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27 class ValueStack;
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28 class InstructionPrinter;
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29 class IRScope;
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30 class LIR_OprDesc;
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31 typedef LIR_OprDesc* LIR_Opr;
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32
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33
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34 // Instruction class hierarchy
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35 //
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36 // All leaf classes in the class hierarchy are concrete classes
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37 // (i.e., are instantiated). All other classes are abstract and
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38 // serve factoring.
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39
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40 class Instruction;
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41 class HiWord;
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42 class Phi;
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43 class Local;
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44 class Constant;
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45 class AccessField;
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46 class LoadField;
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47 class StoreField;
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48 class AccessArray;
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49 class ArrayLength;
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50 class AccessIndexed;
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51 class LoadIndexed;
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52 class StoreIndexed;
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53 class NegateOp;
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54 class Op2;
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55 class ArithmeticOp;
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56 class ShiftOp;
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57 class LogicOp;
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58 class CompareOp;
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59 class IfOp;
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60 class Convert;
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61 class NullCheck;
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62 class OsrEntry;
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63 class ExceptionObject;
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64 class StateSplit;
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65 class Invoke;
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66 class NewInstance;
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67 class NewArray;
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68 class NewTypeArray;
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69 class NewObjectArray;
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70 class NewMultiArray;
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71 class TypeCheck;
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72 class CheckCast;
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73 class InstanceOf;
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74 class AccessMonitor;
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75 class MonitorEnter;
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76 class MonitorExit;
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77 class Intrinsic;
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78 class BlockBegin;
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79 class BlockEnd;
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80 class Goto;
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81 class If;
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82 class IfInstanceOf;
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83 class Switch;
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84 class TableSwitch;
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85 class LookupSwitch;
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86 class Return;
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87 class Throw;
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88 class Base;
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89 class RoundFP;
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90 class UnsafeOp;
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91 class UnsafeRawOp;
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92 class UnsafeGetRaw;
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93 class UnsafePutRaw;
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94 class UnsafeObjectOp;
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95 class UnsafeGetObject;
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96 class UnsafePutObject;
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97 class UnsafePrefetch;
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98 class UnsafePrefetchRead;
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99 class UnsafePrefetchWrite;
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100 class ProfileCall;
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101 class ProfileCounter;
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102
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103 // A Value is a reference to the instruction creating the value
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104 typedef Instruction* Value;
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105 define_array(ValueArray, Value)
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106 define_stack(Values, ValueArray)
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107
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108 define_array(ValueStackArray, ValueStack*)
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109 define_stack(ValueStackStack, ValueStackArray)
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110
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111 // BlockClosure is the base class for block traversal/iteration.
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112
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113 class BlockClosure: public CompilationResourceObj {
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114 public:
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115 virtual void block_do(BlockBegin* block) = 0;
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116 };
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117
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118
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119 // Some array and list classes
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120 define_array(BlockBeginArray, BlockBegin*)
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121 define_stack(_BlockList, BlockBeginArray)
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122
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123 class BlockList: public _BlockList {
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124 public:
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125 BlockList(): _BlockList() {}
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126 BlockList(const int size): _BlockList(size) {}
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127 BlockList(const int size, BlockBegin* init): _BlockList(size, init) {}
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128
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129 void iterate_forward(BlockClosure* closure);
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130 void iterate_backward(BlockClosure* closure);
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131 void blocks_do(void f(BlockBegin*));
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132 void values_do(void f(Value*));
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133 void print(bool cfg_only = false, bool live_only = false) PRODUCT_RETURN;
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134 };
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135
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136
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137 // InstructionVisitors provide type-based dispatch for instructions.
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138 // For each concrete Instruction class X, a virtual function do_X is
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139 // provided. Functionality that needs to be implemented for all classes
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140 // (e.g., printing, code generation) is factored out into a specialised
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141 // visitor instead of added to the Instruction classes itself.
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142
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143 class InstructionVisitor: public StackObj {
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144 public:
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145 void do_HiWord (HiWord* x) { ShouldNotReachHere(); }
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146 virtual void do_Phi (Phi* x) = 0;
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147 virtual void do_Local (Local* x) = 0;
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148 virtual void do_Constant (Constant* x) = 0;
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149 virtual void do_LoadField (LoadField* x) = 0;
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150 virtual void do_StoreField (StoreField* x) = 0;
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151 virtual void do_ArrayLength (ArrayLength* x) = 0;
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152 virtual void do_LoadIndexed (LoadIndexed* x) = 0;
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153 virtual void do_StoreIndexed (StoreIndexed* x) = 0;
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154 virtual void do_NegateOp (NegateOp* x) = 0;
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155 virtual void do_ArithmeticOp (ArithmeticOp* x) = 0;
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156 virtual void do_ShiftOp (ShiftOp* x) = 0;
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157 virtual void do_LogicOp (LogicOp* x) = 0;
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158 virtual void do_CompareOp (CompareOp* x) = 0;
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159 virtual void do_IfOp (IfOp* x) = 0;
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160 virtual void do_Convert (Convert* x) = 0;
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161 virtual void do_NullCheck (NullCheck* x) = 0;
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162 virtual void do_Invoke (Invoke* x) = 0;
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163 virtual void do_NewInstance (NewInstance* x) = 0;
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164 virtual void do_NewTypeArray (NewTypeArray* x) = 0;
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165 virtual void do_NewObjectArray (NewObjectArray* x) = 0;
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166 virtual void do_NewMultiArray (NewMultiArray* x) = 0;
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167 virtual void do_CheckCast (CheckCast* x) = 0;
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168 virtual void do_InstanceOf (InstanceOf* x) = 0;
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169 virtual void do_MonitorEnter (MonitorEnter* x) = 0;
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170 virtual void do_MonitorExit (MonitorExit* x) = 0;
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171 virtual void do_Intrinsic (Intrinsic* x) = 0;
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172 virtual void do_BlockBegin (BlockBegin* x) = 0;
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173 virtual void do_Goto (Goto* x) = 0;
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174 virtual void do_If (If* x) = 0;
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175 virtual void do_IfInstanceOf (IfInstanceOf* x) = 0;
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176 virtual void do_TableSwitch (TableSwitch* x) = 0;
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177 virtual void do_LookupSwitch (LookupSwitch* x) = 0;
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178 virtual void do_Return (Return* x) = 0;
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179 virtual void do_Throw (Throw* x) = 0;
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180 virtual void do_Base (Base* x) = 0;
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181 virtual void do_OsrEntry (OsrEntry* x) = 0;
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182 virtual void do_ExceptionObject(ExceptionObject* x) = 0;
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183 virtual void do_RoundFP (RoundFP* x) = 0;
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184 virtual void do_UnsafeGetRaw (UnsafeGetRaw* x) = 0;
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185 virtual void do_UnsafePutRaw (UnsafePutRaw* x) = 0;
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186 virtual void do_UnsafeGetObject(UnsafeGetObject* x) = 0;
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187 virtual void do_UnsafePutObject(UnsafePutObject* x) = 0;
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188 virtual void do_UnsafePrefetchRead (UnsafePrefetchRead* x) = 0;
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189 virtual void do_UnsafePrefetchWrite(UnsafePrefetchWrite* x) = 0;
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190 virtual void do_ProfileCall (ProfileCall* x) = 0;
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191 virtual void do_ProfileCounter (ProfileCounter* x) = 0;
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192 };
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193
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194
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195 // Hashing support
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196 //
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197 // Note: This hash functions affect the performance
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198 // of ValueMap - make changes carefully!
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199
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200 #define HASH1(x1 ) ((intx)(x1))
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201 #define HASH2(x1, x2 ) ((HASH1(x1 ) << 7) ^ HASH1(x2))
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202 #define HASH3(x1, x2, x3 ) ((HASH2(x1, x2 ) << 7) ^ HASH1(x3))
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203 #define HASH4(x1, x2, x3, x4) ((HASH3(x1, x2, x3) << 7) ^ HASH1(x4))
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204
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205
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206 // The following macros are used to implement instruction-specific hashing.
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207 // By default, each instruction implements hash() and is_equal(Value), used
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208 // for value numbering/common subexpression elimination. The default imple-
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209 // mentation disables value numbering. Each instruction which can be value-
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210 // numbered, should define corresponding hash() and is_equal(Value) functions
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211 // via the macros below. The f arguments specify all the values/op codes, etc.
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212 // that need to be identical for two instructions to be identical.
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213 //
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214 // Note: The default implementation of hash() returns 0 in order to indicate
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215 // that the instruction should not be considered for value numbering.
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216 // The currently used hash functions do not guarantee that never a 0
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217 // is produced. While this is still correct, it may be a performance
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218 // bug (no value numbering for that node). However, this situation is
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219 // so unlikely, that we are not going to handle it specially.
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220
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221 #define HASHING1(class_name, enabled, f1) \
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222 virtual intx hash() const { \
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223 return (enabled) ? HASH2(name(), f1) : 0; \
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224 } \
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225 virtual bool is_equal(Value v) const { \
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226 if (!(enabled) ) return false; \
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227 class_name* _v = v->as_##class_name(); \
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228 if (_v == NULL ) return false; \
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229 if (f1 != _v->f1) return false; \
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230 return true; \
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231 } \
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232
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233
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234 #define HASHING2(class_name, enabled, f1, f2) \
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235 virtual intx hash() const { \
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236 return (enabled) ? HASH3(name(), f1, f2) : 0; \
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237 } \
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238 virtual bool is_equal(Value v) const { \
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239 if (!(enabled) ) return false; \
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240 class_name* _v = v->as_##class_name(); \
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241 if (_v == NULL ) return false; \
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242 if (f1 != _v->f1) return false; \
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243 if (f2 != _v->f2) return false; \
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244 return true; \
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245 } \
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246
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247
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248 #define HASHING3(class_name, enabled, f1, f2, f3) \
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249 virtual intx hash() const { \
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250 return (enabled) ? HASH4(name(), f1, f2, f3) : 0; \
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251 } \
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252 virtual bool is_equal(Value v) const { \
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253 if (!(enabled) ) return false; \
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254 class_name* _v = v->as_##class_name(); \
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255 if (_v == NULL ) return false; \
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256 if (f1 != _v->f1) return false; \
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257 if (f2 != _v->f2) return false; \
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258 if (f3 != _v->f3) return false; \
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259 return true; \
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260 } \
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261
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262
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263 // The mother of all instructions...
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264
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265 class Instruction: public CompilationResourceObj {
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266 private:
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267 static int _next_id; // the node counter
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268
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269 int _id; // the unique instruction id
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270 int _bci; // the instruction bci
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271 int _use_count; // the number of instructions refering to this value (w/o prev/next); only roots can have use count = 0 or > 1
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272 int _pin_state; // set of PinReason describing the reason for pinning
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273 ValueType* _type; // the instruction value type
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274 Instruction* _next; // the next instruction if any (NULL for BlockEnd instructions)
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275 Instruction* _subst; // the substitution instruction if any
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276 LIR_Opr _operand; // LIR specific information
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277 unsigned int _flags; // Flag bits
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278
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279 XHandlers* _exception_handlers; // Flat list of exception handlers covering this instruction
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280
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281 #ifdef ASSERT
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282 HiWord* _hi_word;
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283 #endif
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284
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285 friend class UseCountComputer;
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286
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287 protected:
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288 void set_bci(int bci) { assert(bci == SynchronizationEntryBCI || bci >= 0, "illegal bci"); _bci = bci; }
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289 void set_type(ValueType* type) {
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290 assert(type != NULL, "type must exist");
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291 _type = type;
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292 }
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293
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294 public:
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295 enum InstructionFlag {
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296 NeedsNullCheckFlag = 0,
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297 CanTrapFlag,
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298 DirectCompareFlag,
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299 IsEliminatedFlag,
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300 IsInitializedFlag,
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301 IsLoadedFlag,
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302 IsSafepointFlag,
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303 IsStaticFlag,
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304 IsStrictfpFlag,
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305 NeedsStoreCheckFlag,
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306 NeedsWriteBarrierFlag,
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307 PreservesStateFlag,
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308 TargetIsFinalFlag,
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309 TargetIsLoadedFlag,
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310 TargetIsStrictfpFlag,
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311 UnorderedIsTrueFlag,
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312 NeedsPatchingFlag,
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313 ThrowIncompatibleClassChangeErrorFlag,
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314 ProfileMDOFlag,
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315 InstructionLastFlag
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316 };
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317
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318 public:
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319 bool check_flag(InstructionFlag id) const { return (_flags & (1 << id)) != 0; }
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320 void set_flag(InstructionFlag id, bool f) { _flags = f ? (_flags | (1 << id)) : (_flags & ~(1 << id)); };
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321
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322 // 'globally' used condition values
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323 enum Condition {
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324 eql, neq, lss, leq, gtr, geq
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325 };
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326
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327 // Instructions may be pinned for many reasons and under certain conditions
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328 // with enough knowledge it's possible to safely unpin them.
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329 enum PinReason {
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330 PinUnknown = 1 << 0
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331 , PinExplicitNullCheck = 1 << 3
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332 , PinStackForStateSplit= 1 << 12
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333 , PinStateSplitConstructor= 1 << 13
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334 , PinGlobalValueNumbering= 1 << 14
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335 };
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336
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337 static Condition mirror(Condition cond);
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338 static Condition negate(Condition cond);
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339
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340 // initialization
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341 static void initialize() { _next_id = 0; }
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342 static int number_of_instructions() { return _next_id; }
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343
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344 // creation
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345 Instruction(ValueType* type, bool type_is_constant = false, bool create_hi = true)
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346 : _id(_next_id++)
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347 , _bci(-99)
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348 , _use_count(0)
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349 , _pin_state(0)
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350 , _type(type)
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351 , _next(NULL)
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352 , _subst(NULL)
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353 , _flags(0)
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354 , _operand(LIR_OprFact::illegalOpr)
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355 , _exception_handlers(NULL)
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356 #ifdef ASSERT
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357 , _hi_word(NULL)
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358 #endif
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359 {
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360 assert(type != NULL && (!type->is_constant() || type_is_constant), "type must exist");
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361 #ifdef ASSERT
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362 if (create_hi && type->is_double_word()) {
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363 create_hi_word();
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364 }
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365 #endif
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366 }
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367
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368 // accessors
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369 int id() const { return _id; }
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370 int bci() const { return _bci; }
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371 int use_count() const { return _use_count; }
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372 int pin_state() const { return _pin_state; }
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373 bool is_pinned() const { return _pin_state != 0 || PinAllInstructions; }
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374 ValueType* type() const { return _type; }
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375 Instruction* prev(BlockBegin* block); // use carefully, expensive operation
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376 Instruction* next() const { return _next; }
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377 bool has_subst() const { return _subst != NULL; }
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378 Instruction* subst() { return _subst == NULL ? this : _subst->subst(); }
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379 LIR_Opr operand() const { return _operand; }
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380
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381 void set_needs_null_check(bool f) { set_flag(NeedsNullCheckFlag, f); }
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382 bool needs_null_check() const { return check_flag(NeedsNullCheckFlag); }
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383
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384 bool has_uses() const { return use_count() > 0; }
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385 bool is_root() const { return is_pinned() || use_count() > 1; }
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386 XHandlers* exception_handlers() const { return _exception_handlers; }
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387
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388 // manipulation
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389 void pin(PinReason reason) { _pin_state |= reason; }
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390 void pin() { _pin_state |= PinUnknown; }
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391 // DANGEROUS: only used by EliminateStores
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392 void unpin(PinReason reason) { assert((reason & PinUnknown) == 0, "can't unpin unknown state"); _pin_state &= ~reason; }
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393 virtual void set_lock_stack(ValueStack* l) { /* do nothing*/ }
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394 virtual ValueStack* lock_stack() const { return NULL; }
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395
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396 Instruction* set_next(Instruction* next, int bci) {
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397 if (next != NULL) {
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398 assert(as_BlockEnd() == NULL, "BlockEnd instructions must have no next");
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399 assert(next->as_Phi() == NULL && next->as_Local() == NULL, "shouldn't link these instructions into list");
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400 next->set_bci(bci);
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401 }
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402 _next = next;
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403 return next;
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404 }
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405
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406 void set_subst(Instruction* subst) {
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407 assert(subst == NULL ||
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408 type()->base() == subst->type()->base() ||
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409 subst->type()->base() == illegalType, "type can't change");
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410 _subst = subst;
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411 }
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412 void set_exception_handlers(XHandlers *xhandlers) { _exception_handlers = xhandlers; }
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413
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414 #ifdef ASSERT
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415 // HiWord is used for debugging and is allocated early to avoid
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416 // allocation at inconvenient points
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417 HiWord* hi_word() { return _hi_word; }
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418 void create_hi_word();
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419 #endif
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420
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421
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422 // machine-specifics
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423 void set_operand(LIR_Opr operand) { assert(operand != LIR_OprFact::illegalOpr, "operand must exist"); _operand = operand; }
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424 void clear_operand() { _operand = LIR_OprFact::illegalOpr; }
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425
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426 // generic
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427 virtual Instruction* as_Instruction() { return this; } // to satisfy HASHING1 macro
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428 virtual HiWord* as_HiWord() { return NULL; }
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429 virtual Phi* as_Phi() { return NULL; }
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430 virtual Local* as_Local() { return NULL; }
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431 virtual Constant* as_Constant() { return NULL; }
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432 virtual AccessField* as_AccessField() { return NULL; }
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433 virtual LoadField* as_LoadField() { return NULL; }
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434 virtual StoreField* as_StoreField() { return NULL; }
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435 virtual AccessArray* as_AccessArray() { return NULL; }
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436 virtual ArrayLength* as_ArrayLength() { return NULL; }
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437 virtual AccessIndexed* as_AccessIndexed() { return NULL; }
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438 virtual LoadIndexed* as_LoadIndexed() { return NULL; }
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439 virtual StoreIndexed* as_StoreIndexed() { return NULL; }
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440 virtual NegateOp* as_NegateOp() { return NULL; }
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441 virtual Op2* as_Op2() { return NULL; }
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442 virtual ArithmeticOp* as_ArithmeticOp() { return NULL; }
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443 virtual ShiftOp* as_ShiftOp() { return NULL; }
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444 virtual LogicOp* as_LogicOp() { return NULL; }
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445 virtual CompareOp* as_CompareOp() { return NULL; }
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446 virtual IfOp* as_IfOp() { return NULL; }
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447 virtual Convert* as_Convert() { return NULL; }
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448 virtual NullCheck* as_NullCheck() { return NULL; }
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449 virtual OsrEntry* as_OsrEntry() { return NULL; }
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450 virtual StateSplit* as_StateSplit() { return NULL; }
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451 virtual Invoke* as_Invoke() { return NULL; }
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452 virtual NewInstance* as_NewInstance() { return NULL; }
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453 virtual NewArray* as_NewArray() { return NULL; }
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454 virtual NewTypeArray* as_NewTypeArray() { return NULL; }
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455 virtual NewObjectArray* as_NewObjectArray() { return NULL; }
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456 virtual NewMultiArray* as_NewMultiArray() { return NULL; }
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457 virtual TypeCheck* as_TypeCheck() { return NULL; }
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458 virtual CheckCast* as_CheckCast() { return NULL; }
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459 virtual InstanceOf* as_InstanceOf() { return NULL; }
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460 virtual AccessMonitor* as_AccessMonitor() { return NULL; }
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461 virtual MonitorEnter* as_MonitorEnter() { return NULL; }
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462 virtual MonitorExit* as_MonitorExit() { return NULL; }
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463 virtual Intrinsic* as_Intrinsic() { return NULL; }
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464 virtual BlockBegin* as_BlockBegin() { return NULL; }
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465 virtual BlockEnd* as_BlockEnd() { return NULL; }
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466 virtual Goto* as_Goto() { return NULL; }
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467 virtual If* as_If() { return NULL; }
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468 virtual IfInstanceOf* as_IfInstanceOf() { return NULL; }
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469 virtual TableSwitch* as_TableSwitch() { return NULL; }
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470 virtual LookupSwitch* as_LookupSwitch() { return NULL; }
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471 virtual Return* as_Return() { return NULL; }
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472 virtual Throw* as_Throw() { return NULL; }
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473 virtual Base* as_Base() { return NULL; }
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474 virtual RoundFP* as_RoundFP() { return NULL; }
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475 virtual ExceptionObject* as_ExceptionObject() { return NULL; }
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476 virtual UnsafeOp* as_UnsafeOp() { return NULL; }
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477
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478 virtual void visit(InstructionVisitor* v) = 0;
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479
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480 virtual bool can_trap() const { return false; }
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481
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482 virtual void input_values_do(void f(Value*)) = 0;
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483 virtual void state_values_do(void f(Value*)) { /* usually no state - override on demand */ }
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484 virtual void other_values_do(void f(Value*)) { /* usually no other - override on demand */ }
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485 void values_do(void f(Value*)) { input_values_do(f); state_values_do(f); other_values_do(f); }
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486
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487 virtual ciType* exact_type() const { return NULL; }
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488 virtual ciType* declared_type() const { return NULL; }
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489
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490 // hashing
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491 virtual const char* name() const = 0;
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492 HASHING1(Instruction, false, id()) // hashing disabled by default
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493
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494 // debugging
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495 void print() PRODUCT_RETURN;
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496 void print_line() PRODUCT_RETURN;
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497 void print(InstructionPrinter& ip) PRODUCT_RETURN;
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498 };
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499
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500
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501 // The following macros are used to define base (i.e., non-leaf)
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502 // and leaf instruction classes. They define class-name related
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503 // generic functionality in one place.
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504
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505 #define BASE(class_name, super_class_name) \
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506 class class_name: public super_class_name { \
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507 public: \
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508 virtual class_name* as_##class_name() { return this; } \
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509
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510
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511 #define LEAF(class_name, super_class_name) \
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512 BASE(class_name, super_class_name) \
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513 public: \
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514 virtual const char* name() const { return #class_name; } \
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515 virtual void visit(InstructionVisitor* v) { v->do_##class_name(this); } \
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516
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517
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518 // Debugging support
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519
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520 #ifdef ASSERT
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521 static void assert_value(Value* x) { assert((*x) != NULL, "value must exist"); }
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522 #define ASSERT_VALUES values_do(assert_value);
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523 #else
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524 #define ASSERT_VALUES
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525 #endif // ASSERT
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526
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527
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528 // A HiWord occupies the 'high word' of a 2-word
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529 // expression stack entry. Hi & lo words must be
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530 // paired on the expression stack (otherwise the
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531 // bytecode sequence is illegal). Note that 'hi'
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532 // refers to the IR expression stack format and
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parents:
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533 // does *not* imply a machine word ordering. No
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diff changeset
534 // HiWords are used in optimized mode for speed,
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535 // but NULL pointers are used instead.
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536
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537 LEAF(HiWord, Instruction)
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538 private:
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539 Value _lo_word;
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540
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541 public:
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542 // creation
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543 HiWord(Value lo_word)
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544 : Instruction(illegalType, false, false),
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parents:
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545 _lo_word(lo_word) {
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parents:
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546 // hi-words are also allowed for illegal lo-words
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parents:
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547 assert(lo_word->type()->is_double_word() || lo_word->type()->is_illegal(),
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548 "HiWord must be used for 2-word values only");
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parents:
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549 }
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550
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parents:
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551 // accessors
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552 Value lo_word() const { return _lo_word->subst(); }
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553
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554 // for invalidating of HiWords
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555 void make_illegal() { set_type(illegalType); }
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556
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557 // generic
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558 virtual void input_values_do(void f(Value*)) { ShouldNotReachHere(); }
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559 };
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560
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561
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parents:
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562 // A Phi is a phi function in the sense of SSA form. It stands for
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563 // the value of a local variable at the beginning of a join block.
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parents:
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564 // A Phi consists of n operands, one for every incoming branch.
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565
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parents:
diff changeset
566 LEAF(Phi, Instruction)
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567 private:
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568 BlockBegin* _block; // the block to which the phi function belongs
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569 int _pf_flags; // the flags of the phi function
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570 int _index; // to value on operand stack (index < 0) or to local
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571 public:
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572 // creation
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diff changeset
573 Phi(ValueType* type, BlockBegin* b, int index)
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parents:
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574 : Instruction(type->base())
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575 , _pf_flags(0)
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parents:
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576 , _block(b)
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577 , _index(index)
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parents:
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578 {
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parents:
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579 if (type->is_illegal()) {
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580 make_illegal();
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parents:
diff changeset
581 }
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parents:
diff changeset
582 }
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583
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parents:
diff changeset
584 // flags
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parents:
diff changeset
585 enum Flag {
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586 no_flag = 0,
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parents:
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587 visited = 1 << 0,
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parents:
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588 cannot_simplify = 1 << 1
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589 };
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parents:
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590
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591 // accessors
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592 bool is_local() const { return _index >= 0; }
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parents:
diff changeset
593 bool is_on_stack() const { return !is_local(); }
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594 int local_index() const { assert(is_local(), ""); return _index; }
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parents:
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595 int stack_index() const { assert(is_on_stack(), ""); return -(_index+1); }
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596
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597 Value operand_at(int i) const;
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diff changeset
598 int operand_count() const;
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diff changeset
599
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600 BlockBegin* block() const { return _block; }
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parents:
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601
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parents:
diff changeset
602 void set(Flag f) { _pf_flags |= f; }
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diff changeset
603 void clear(Flag f) { _pf_flags &= ~f; }
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diff changeset
604 bool is_set(Flag f) const { return (_pf_flags & f) != 0; }
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diff changeset
605
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diff changeset
606 // Invalidates phis corresponding to merges of locals of two different types
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parents:
diff changeset
607 // (these should never be referenced, otherwise the bytecodes are illegal)
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parents:
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608 void make_illegal() {
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parents:
diff changeset
609 set(cannot_simplify);
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parents:
diff changeset
610 set_type(illegalType);
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parents:
diff changeset
611 }
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parents:
diff changeset
612
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parents:
diff changeset
613 bool is_illegal() const {
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parents:
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614 return type()->is_illegal();
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parents:
diff changeset
615 }
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parents:
diff changeset
616
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parents:
diff changeset
617 // generic
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parents:
diff changeset
618 virtual void input_values_do(void f(Value*)) {
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parents:
diff changeset
619 }
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parents:
diff changeset
620 };
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diff changeset
621
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parents:
diff changeset
622
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parents:
diff changeset
623 // A local is a placeholder for an incoming argument to a function call.
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parents:
diff changeset
624 LEAF(Local, Instruction)
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parents:
diff changeset
625 private:
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parents:
diff changeset
626 int _java_index; // the local index within the method to which the local belongs
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diff changeset
627 public:
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parents:
diff changeset
628 // creation
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parents:
diff changeset
629 Local(ValueType* type, int index)
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parents:
diff changeset
630 : Instruction(type)
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parents:
diff changeset
631 , _java_index(index)
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parents:
diff changeset
632 {}
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parents:
diff changeset
633
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parents:
diff changeset
634 // accessors
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parents:
diff changeset
635 int java_index() const { return _java_index; }
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parents:
diff changeset
636
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parents:
diff changeset
637 // generic
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parents:
diff changeset
638 virtual void input_values_do(void f(Value*)) { /* no values */ }
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parents:
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639 };
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parents:
diff changeset
640
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parents:
diff changeset
641
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parents:
diff changeset
642 LEAF(Constant, Instruction)
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parents:
diff changeset
643 ValueStack* _state;
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parents:
diff changeset
644
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645 public:
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parents:
diff changeset
646 // creation
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parents:
diff changeset
647 Constant(ValueType* type):
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parents:
diff changeset
648 Instruction(type, true)
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parents:
diff changeset
649 , _state(NULL) {
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parents:
diff changeset
650 assert(type->is_constant(), "must be a constant");
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parents:
diff changeset
651 }
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parents:
diff changeset
652
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diff changeset
653 Constant(ValueType* type, ValueStack* state):
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parents:
diff changeset
654 Instruction(type, true)
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parents:
diff changeset
655 , _state(state) {
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parents:
diff changeset
656 assert(state != NULL, "only used for constants which need patching");
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parents:
diff changeset
657 assert(type->is_constant(), "must be a constant");
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parents:
diff changeset
658 // since it's patching it needs to be pinned
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parents:
diff changeset
659 pin();
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parents:
diff changeset
660 }
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parents:
diff changeset
661
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parents:
diff changeset
662 ValueStack* state() const { return _state; }
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parents:
diff changeset
663
a61af66fc99e Initial load
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parents:
diff changeset
664 // generic
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parents:
diff changeset
665 virtual bool can_trap() const { return state() != NULL; }
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parents:
diff changeset
666 virtual void input_values_do(void f(Value*)) { /* no values */ }
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parents:
diff changeset
667 virtual void other_values_do(void f(Value*));
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parents:
diff changeset
668
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parents:
diff changeset
669 virtual intx hash() const;
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parents:
diff changeset
670 virtual bool is_equal(Value v) const;
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parents:
diff changeset
671
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parents:
diff changeset
672 virtual BlockBegin* compare(Instruction::Condition condition, Value right,
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parents:
diff changeset
673 BlockBegin* true_sux, BlockBegin* false_sux);
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parents:
diff changeset
674 };
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parents:
diff changeset
675
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diff changeset
676
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parents:
diff changeset
677 BASE(AccessField, Instruction)
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diff changeset
678 private:
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parents:
diff changeset
679 Value _obj;
a61af66fc99e Initial load
duke
parents:
diff changeset
680 int _offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
681 ciField* _field;
a61af66fc99e Initial load
duke
parents:
diff changeset
682 ValueStack* _state_before; // state is set only for unloaded or uninitialized fields
a61af66fc99e Initial load
duke
parents:
diff changeset
683 ValueStack* _lock_stack; // contains lock and scope information
a61af66fc99e Initial load
duke
parents:
diff changeset
684 NullCheck* _explicit_null_check; // For explicit null check elimination
a61af66fc99e Initial load
duke
parents:
diff changeset
685
a61af66fc99e Initial load
duke
parents:
diff changeset
686 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
687 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
688 AccessField(Value obj, int offset, ciField* field, bool is_static, ValueStack* lock_stack,
a61af66fc99e Initial load
duke
parents:
diff changeset
689 ValueStack* state_before, bool is_loaded, bool is_initialized)
a61af66fc99e Initial load
duke
parents:
diff changeset
690 : Instruction(as_ValueType(field->type()->basic_type()))
a61af66fc99e Initial load
duke
parents:
diff changeset
691 , _obj(obj)
a61af66fc99e Initial load
duke
parents:
diff changeset
692 , _offset(offset)
a61af66fc99e Initial load
duke
parents:
diff changeset
693 , _field(field)
a61af66fc99e Initial load
duke
parents:
diff changeset
694 , _lock_stack(lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
695 , _state_before(state_before)
a61af66fc99e Initial load
duke
parents:
diff changeset
696 , _explicit_null_check(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
697 {
a61af66fc99e Initial load
duke
parents:
diff changeset
698 set_needs_null_check(!is_static);
a61af66fc99e Initial load
duke
parents:
diff changeset
699 set_flag(IsLoadedFlag, is_loaded);
a61af66fc99e Initial load
duke
parents:
diff changeset
700 set_flag(IsInitializedFlag, is_initialized);
a61af66fc99e Initial load
duke
parents:
diff changeset
701 set_flag(IsStaticFlag, is_static);
a61af66fc99e Initial load
duke
parents:
diff changeset
702 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
703 if (!is_loaded || (PatchALot && !field->is_volatile())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
704 // need to patch if the holder wasn't loaded or we're testing
a61af66fc99e Initial load
duke
parents:
diff changeset
705 // using PatchALot. Don't allow PatchALot for fields which are
a61af66fc99e Initial load
duke
parents:
diff changeset
706 // known to be volatile they aren't patchable.
a61af66fc99e Initial load
duke
parents:
diff changeset
707 set_flag(NeedsPatchingFlag, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
708 }
a61af66fc99e Initial load
duke
parents:
diff changeset
709 // pin of all instructions with memory access
a61af66fc99e Initial load
duke
parents:
diff changeset
710 pin();
a61af66fc99e Initial load
duke
parents:
diff changeset
711 }
a61af66fc99e Initial load
duke
parents:
diff changeset
712
a61af66fc99e Initial load
duke
parents:
diff changeset
713 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
714 Value obj() const { return _obj; }
a61af66fc99e Initial load
duke
parents:
diff changeset
715 int offset() const { return _offset; }
a61af66fc99e Initial load
duke
parents:
diff changeset
716 ciField* field() const { return _field; }
a61af66fc99e Initial load
duke
parents:
diff changeset
717 BasicType field_type() const { return _field->type()->basic_type(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
718 bool is_static() const { return check_flag(IsStaticFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
719 bool is_loaded() const { return check_flag(IsLoadedFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
720 bool is_initialized() const { return check_flag(IsInitializedFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
721 ValueStack* state_before() const { return _state_before; }
a61af66fc99e Initial load
duke
parents:
diff changeset
722 ValueStack* lock_stack() const { return _lock_stack; }
a61af66fc99e Initial load
duke
parents:
diff changeset
723 NullCheck* explicit_null_check() const { return _explicit_null_check; }
a61af66fc99e Initial load
duke
parents:
diff changeset
724 bool needs_patching() const { return check_flag(NeedsPatchingFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
725
a61af66fc99e Initial load
duke
parents:
diff changeset
726 // manipulation
a61af66fc99e Initial load
duke
parents:
diff changeset
727 void set_lock_stack(ValueStack* l) { _lock_stack = l; }
a61af66fc99e Initial load
duke
parents:
diff changeset
728 // Under certain circumstances, if a previous NullCheck instruction
a61af66fc99e Initial load
duke
parents:
diff changeset
729 // proved the target object non-null, we can eliminate the explicit
a61af66fc99e Initial load
duke
parents:
diff changeset
730 // null check and do an implicit one, simply specifying the debug
a61af66fc99e Initial load
duke
parents:
diff changeset
731 // information from the NullCheck. This field should only be consulted
a61af66fc99e Initial load
duke
parents:
diff changeset
732 // if needs_null_check() is true.
a61af66fc99e Initial load
duke
parents:
diff changeset
733 void set_explicit_null_check(NullCheck* check) { _explicit_null_check = check; }
a61af66fc99e Initial load
duke
parents:
diff changeset
734
a61af66fc99e Initial load
duke
parents:
diff changeset
735 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
736 virtual bool can_trap() const { return needs_null_check() || needs_patching(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
737 virtual void input_values_do(void f(Value*)) { f(&_obj); }
a61af66fc99e Initial load
duke
parents:
diff changeset
738 virtual void other_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
739 };
a61af66fc99e Initial load
duke
parents:
diff changeset
740
a61af66fc99e Initial load
duke
parents:
diff changeset
741
a61af66fc99e Initial load
duke
parents:
diff changeset
742 LEAF(LoadField, AccessField)
a61af66fc99e Initial load
duke
parents:
diff changeset
743 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
744 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
745 LoadField(Value obj, int offset, ciField* field, bool is_static, ValueStack* lock_stack,
a61af66fc99e Initial load
duke
parents:
diff changeset
746 ValueStack* state_before, bool is_loaded, bool is_initialized)
a61af66fc99e Initial load
duke
parents:
diff changeset
747 : AccessField(obj, offset, field, is_static, lock_stack, state_before, is_loaded, is_initialized)
a61af66fc99e Initial load
duke
parents:
diff changeset
748 {}
a61af66fc99e Initial load
duke
parents:
diff changeset
749
a61af66fc99e Initial load
duke
parents:
diff changeset
750 ciType* declared_type() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
751 ciType* exact_type() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
752
a61af66fc99e Initial load
duke
parents:
diff changeset
753 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
754 HASHING2(LoadField, is_loaded() && !field()->is_volatile(), obj()->subst(), offset()) // cannot be eliminated if not yet loaded or if volatile
a61af66fc99e Initial load
duke
parents:
diff changeset
755 };
a61af66fc99e Initial load
duke
parents:
diff changeset
756
a61af66fc99e Initial load
duke
parents:
diff changeset
757
a61af66fc99e Initial load
duke
parents:
diff changeset
758 LEAF(StoreField, AccessField)
a61af66fc99e Initial load
duke
parents:
diff changeset
759 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
760 Value _value;
a61af66fc99e Initial load
duke
parents:
diff changeset
761
a61af66fc99e Initial load
duke
parents:
diff changeset
762 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
763 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
764 StoreField(Value obj, int offset, ciField* field, Value value, bool is_static, ValueStack* lock_stack,
a61af66fc99e Initial load
duke
parents:
diff changeset
765 ValueStack* state_before, bool is_loaded, bool is_initialized)
a61af66fc99e Initial load
duke
parents:
diff changeset
766 : AccessField(obj, offset, field, is_static, lock_stack, state_before, is_loaded, is_initialized)
a61af66fc99e Initial load
duke
parents:
diff changeset
767 , _value(value)
a61af66fc99e Initial load
duke
parents:
diff changeset
768 {
a61af66fc99e Initial load
duke
parents:
diff changeset
769 set_flag(NeedsWriteBarrierFlag, as_ValueType(field_type())->is_object());
a61af66fc99e Initial load
duke
parents:
diff changeset
770 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
771 pin();
a61af66fc99e Initial load
duke
parents:
diff changeset
772 }
a61af66fc99e Initial load
duke
parents:
diff changeset
773
a61af66fc99e Initial load
duke
parents:
diff changeset
774 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
775 Value value() const { return _value; }
a61af66fc99e Initial load
duke
parents:
diff changeset
776 bool needs_write_barrier() const { return check_flag(NeedsWriteBarrierFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
777
a61af66fc99e Initial load
duke
parents:
diff changeset
778 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
779 virtual void input_values_do(void f(Value*)) { AccessField::input_values_do(f); f(&_value); }
a61af66fc99e Initial load
duke
parents:
diff changeset
780 };
a61af66fc99e Initial load
duke
parents:
diff changeset
781
a61af66fc99e Initial load
duke
parents:
diff changeset
782
a61af66fc99e Initial load
duke
parents:
diff changeset
783 BASE(AccessArray, Instruction)
a61af66fc99e Initial load
duke
parents:
diff changeset
784 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
785 Value _array;
a61af66fc99e Initial load
duke
parents:
diff changeset
786 ValueStack* _lock_stack;
a61af66fc99e Initial load
duke
parents:
diff changeset
787
a61af66fc99e Initial load
duke
parents:
diff changeset
788 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
789 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
790 AccessArray(ValueType* type, Value array, ValueStack* lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
791 : Instruction(type)
a61af66fc99e Initial load
duke
parents:
diff changeset
792 , _array(array)
a61af66fc99e Initial load
duke
parents:
diff changeset
793 , _lock_stack(lock_stack) {
a61af66fc99e Initial load
duke
parents:
diff changeset
794 set_needs_null_check(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
795 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
796 pin(); // instruction with side effect (null exception or range check throwing)
a61af66fc99e Initial load
duke
parents:
diff changeset
797 }
a61af66fc99e Initial load
duke
parents:
diff changeset
798
a61af66fc99e Initial load
duke
parents:
diff changeset
799 Value array() const { return _array; }
a61af66fc99e Initial load
duke
parents:
diff changeset
800 ValueStack* lock_stack() const { return _lock_stack; }
a61af66fc99e Initial load
duke
parents:
diff changeset
801
a61af66fc99e Initial load
duke
parents:
diff changeset
802 // setters
a61af66fc99e Initial load
duke
parents:
diff changeset
803 void set_lock_stack(ValueStack* l) { _lock_stack = l; }
a61af66fc99e Initial load
duke
parents:
diff changeset
804
a61af66fc99e Initial load
duke
parents:
diff changeset
805 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
806 virtual bool can_trap() const { return needs_null_check(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
807 virtual void input_values_do(void f(Value*)) { f(&_array); }
a61af66fc99e Initial load
duke
parents:
diff changeset
808 virtual void other_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
809 };
a61af66fc99e Initial load
duke
parents:
diff changeset
810
a61af66fc99e Initial load
duke
parents:
diff changeset
811
a61af66fc99e Initial load
duke
parents:
diff changeset
812 LEAF(ArrayLength, AccessArray)
a61af66fc99e Initial load
duke
parents:
diff changeset
813 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
814 NullCheck* _explicit_null_check; // For explicit null check elimination
a61af66fc99e Initial load
duke
parents:
diff changeset
815
a61af66fc99e Initial load
duke
parents:
diff changeset
816 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
817 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
818 ArrayLength(Value array, ValueStack* lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
819 : AccessArray(intType, array, lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
820 , _explicit_null_check(NULL) {}
a61af66fc99e Initial load
duke
parents:
diff changeset
821
a61af66fc99e Initial load
duke
parents:
diff changeset
822 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
823 NullCheck* explicit_null_check() const { return _explicit_null_check; }
a61af66fc99e Initial load
duke
parents:
diff changeset
824
a61af66fc99e Initial load
duke
parents:
diff changeset
825 // setters
a61af66fc99e Initial load
duke
parents:
diff changeset
826 // See LoadField::set_explicit_null_check for documentation
a61af66fc99e Initial load
duke
parents:
diff changeset
827 void set_explicit_null_check(NullCheck* check) { _explicit_null_check = check; }
a61af66fc99e Initial load
duke
parents:
diff changeset
828
a61af66fc99e Initial load
duke
parents:
diff changeset
829 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
830 HASHING1(ArrayLength, true, array()->subst())
a61af66fc99e Initial load
duke
parents:
diff changeset
831 };
a61af66fc99e Initial load
duke
parents:
diff changeset
832
a61af66fc99e Initial load
duke
parents:
diff changeset
833
a61af66fc99e Initial load
duke
parents:
diff changeset
834 BASE(AccessIndexed, AccessArray)
a61af66fc99e Initial load
duke
parents:
diff changeset
835 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
836 Value _index;
a61af66fc99e Initial load
duke
parents:
diff changeset
837 Value _length;
a61af66fc99e Initial load
duke
parents:
diff changeset
838 BasicType _elt_type;
a61af66fc99e Initial load
duke
parents:
diff changeset
839
a61af66fc99e Initial load
duke
parents:
diff changeset
840 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
841 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
842 AccessIndexed(Value array, Value index, Value length, BasicType elt_type, ValueStack* lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
843 : AccessArray(as_ValueType(elt_type), array, lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
844 , _index(index)
a61af66fc99e Initial load
duke
parents:
diff changeset
845 , _length(length)
a61af66fc99e Initial load
duke
parents:
diff changeset
846 , _elt_type(elt_type)
a61af66fc99e Initial load
duke
parents:
diff changeset
847 {
a61af66fc99e Initial load
duke
parents:
diff changeset
848 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
849 }
a61af66fc99e Initial load
duke
parents:
diff changeset
850
a61af66fc99e Initial load
duke
parents:
diff changeset
851 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
852 Value index() const { return _index; }
a61af66fc99e Initial load
duke
parents:
diff changeset
853 Value length() const { return _length; }
a61af66fc99e Initial load
duke
parents:
diff changeset
854 BasicType elt_type() const { return _elt_type; }
a61af66fc99e Initial load
duke
parents:
diff changeset
855
a61af66fc99e Initial load
duke
parents:
diff changeset
856 // perform elimination of range checks involving constants
a61af66fc99e Initial load
duke
parents:
diff changeset
857 bool compute_needs_range_check();
a61af66fc99e Initial load
duke
parents:
diff changeset
858
a61af66fc99e Initial load
duke
parents:
diff changeset
859 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
860 virtual void input_values_do(void f(Value*)) { AccessArray::input_values_do(f); f(&_index); if (_length != NULL) f(&_length); }
a61af66fc99e Initial load
duke
parents:
diff changeset
861 };
a61af66fc99e Initial load
duke
parents:
diff changeset
862
a61af66fc99e Initial load
duke
parents:
diff changeset
863
a61af66fc99e Initial load
duke
parents:
diff changeset
864 LEAF(LoadIndexed, AccessIndexed)
a61af66fc99e Initial load
duke
parents:
diff changeset
865 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
866 NullCheck* _explicit_null_check; // For explicit null check elimination
a61af66fc99e Initial load
duke
parents:
diff changeset
867
a61af66fc99e Initial load
duke
parents:
diff changeset
868 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
869 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
870 LoadIndexed(Value array, Value index, Value length, BasicType elt_type, ValueStack* lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
871 : AccessIndexed(array, index, length, elt_type, lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
872 , _explicit_null_check(NULL) {}
a61af66fc99e Initial load
duke
parents:
diff changeset
873
a61af66fc99e Initial load
duke
parents:
diff changeset
874 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
875 NullCheck* explicit_null_check() const { return _explicit_null_check; }
a61af66fc99e Initial load
duke
parents:
diff changeset
876
a61af66fc99e Initial load
duke
parents:
diff changeset
877 // setters
a61af66fc99e Initial load
duke
parents:
diff changeset
878 // See LoadField::set_explicit_null_check for documentation
a61af66fc99e Initial load
duke
parents:
diff changeset
879 void set_explicit_null_check(NullCheck* check) { _explicit_null_check = check; }
a61af66fc99e Initial load
duke
parents:
diff changeset
880
a61af66fc99e Initial load
duke
parents:
diff changeset
881 ciType* exact_type() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
882 ciType* declared_type() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
883
a61af66fc99e Initial load
duke
parents:
diff changeset
884 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
885 HASHING2(LoadIndexed, true, array()->subst(), index()->subst())
a61af66fc99e Initial load
duke
parents:
diff changeset
886 };
a61af66fc99e Initial load
duke
parents:
diff changeset
887
a61af66fc99e Initial load
duke
parents:
diff changeset
888
a61af66fc99e Initial load
duke
parents:
diff changeset
889 LEAF(StoreIndexed, AccessIndexed)
a61af66fc99e Initial load
duke
parents:
diff changeset
890 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
891 Value _value;
a61af66fc99e Initial load
duke
parents:
diff changeset
892
a61af66fc99e Initial load
duke
parents:
diff changeset
893 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
894 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
895 StoreIndexed(Value array, Value index, Value length, BasicType elt_type, Value value, ValueStack* lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
896 : AccessIndexed(array, index, length, elt_type, lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
897 , _value(value)
a61af66fc99e Initial load
duke
parents:
diff changeset
898 {
a61af66fc99e Initial load
duke
parents:
diff changeset
899 set_flag(NeedsWriteBarrierFlag, (as_ValueType(elt_type)->is_object()));
a61af66fc99e Initial load
duke
parents:
diff changeset
900 set_flag(NeedsStoreCheckFlag, (as_ValueType(elt_type)->is_object()));
a61af66fc99e Initial load
duke
parents:
diff changeset
901 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
902 pin();
a61af66fc99e Initial load
duke
parents:
diff changeset
903 }
a61af66fc99e Initial load
duke
parents:
diff changeset
904
a61af66fc99e Initial load
duke
parents:
diff changeset
905 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
906 Value value() const { return _value; }
a61af66fc99e Initial load
duke
parents:
diff changeset
907 IRScope* scope() const; // the state's scope
a61af66fc99e Initial load
duke
parents:
diff changeset
908 bool needs_write_barrier() const { return check_flag(NeedsWriteBarrierFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
909 bool needs_store_check() const { return check_flag(NeedsStoreCheckFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
910
a61af66fc99e Initial load
duke
parents:
diff changeset
911 // generic
a61af66fc99e Initial load
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parents:
diff changeset
912 virtual void input_values_do(void f(Value*)) { AccessIndexed::input_values_do(f); f(&_value); }
a61af66fc99e Initial load
duke
parents:
diff changeset
913 };
a61af66fc99e Initial load
duke
parents:
diff changeset
914
a61af66fc99e Initial load
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parents:
diff changeset
915
a61af66fc99e Initial load
duke
parents:
diff changeset
916 LEAF(NegateOp, Instruction)
a61af66fc99e Initial load
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parents:
diff changeset
917 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
918 Value _x;
a61af66fc99e Initial load
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parents:
diff changeset
919
a61af66fc99e Initial load
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parents:
diff changeset
920 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
921 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
922 NegateOp(Value x) : Instruction(x->type()->base()), _x(x) {
a61af66fc99e Initial load
duke
parents:
diff changeset
923 ASSERT_VALUES
a61af66fc99e Initial load
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parents:
diff changeset
924 }
a61af66fc99e Initial load
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parents:
diff changeset
925
a61af66fc99e Initial load
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parents:
diff changeset
926 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
927 Value x() const { return _x; }
a61af66fc99e Initial load
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parents:
diff changeset
928
a61af66fc99e Initial load
duke
parents:
diff changeset
929 // generic
a61af66fc99e Initial load
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parents:
diff changeset
930 virtual void input_values_do(void f(Value*)) { f(&_x); }
a61af66fc99e Initial load
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parents:
diff changeset
931 };
a61af66fc99e Initial load
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parents:
diff changeset
932
a61af66fc99e Initial load
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parents:
diff changeset
933
a61af66fc99e Initial load
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parents:
diff changeset
934 BASE(Op2, Instruction)
a61af66fc99e Initial load
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parents:
diff changeset
935 private:
a61af66fc99e Initial load
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parents:
diff changeset
936 Bytecodes::Code _op;
a61af66fc99e Initial load
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parents:
diff changeset
937 Value _x;
a61af66fc99e Initial load
duke
parents:
diff changeset
938 Value _y;
a61af66fc99e Initial load
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parents:
diff changeset
939
a61af66fc99e Initial load
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parents:
diff changeset
940 public:
a61af66fc99e Initial load
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parents:
diff changeset
941 // creation
a61af66fc99e Initial load
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parents:
diff changeset
942 Op2(ValueType* type, Bytecodes::Code op, Value x, Value y) : Instruction(type), _op(op), _x(x), _y(y) {
a61af66fc99e Initial load
duke
parents:
diff changeset
943 ASSERT_VALUES
a61af66fc99e Initial load
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parents:
diff changeset
944 }
a61af66fc99e Initial load
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parents:
diff changeset
945
a61af66fc99e Initial load
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parents:
diff changeset
946 // accessors
a61af66fc99e Initial load
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parents:
diff changeset
947 Bytecodes::Code op() const { return _op; }
a61af66fc99e Initial load
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parents:
diff changeset
948 Value x() const { return _x; }
a61af66fc99e Initial load
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parents:
diff changeset
949 Value y() const { return _y; }
a61af66fc99e Initial load
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parents:
diff changeset
950
a61af66fc99e Initial load
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parents:
diff changeset
951 // manipulators
a61af66fc99e Initial load
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parents:
diff changeset
952 void swap_operands() {
a61af66fc99e Initial load
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parents:
diff changeset
953 assert(is_commutative(), "operation must be commutative");
a61af66fc99e Initial load
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parents:
diff changeset
954 Value t = _x; _x = _y; _y = t;
a61af66fc99e Initial load
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parents:
diff changeset
955 }
a61af66fc99e Initial load
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parents:
diff changeset
956
a61af66fc99e Initial load
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parents:
diff changeset
957 // generic
a61af66fc99e Initial load
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parents:
diff changeset
958 virtual bool is_commutative() const { return false; }
a61af66fc99e Initial load
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parents:
diff changeset
959 virtual void input_values_do(void f(Value*)) { f(&_x); f(&_y); }
a61af66fc99e Initial load
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parents:
diff changeset
960 };
a61af66fc99e Initial load
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parents:
diff changeset
961
a61af66fc99e Initial load
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parents:
diff changeset
962
a61af66fc99e Initial load
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parents:
diff changeset
963 LEAF(ArithmeticOp, Op2)
a61af66fc99e Initial load
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parents:
diff changeset
964 private:
a61af66fc99e Initial load
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parents:
diff changeset
965 ValueStack* _lock_stack; // used only for division operations
a61af66fc99e Initial load
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parents:
diff changeset
966 public:
a61af66fc99e Initial load
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parents:
diff changeset
967 // creation
a61af66fc99e Initial load
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parents:
diff changeset
968 ArithmeticOp(Bytecodes::Code op, Value x, Value y, bool is_strictfp, ValueStack* lock_stack)
a61af66fc99e Initial load
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parents:
diff changeset
969 : Op2(x->type()->meet(y->type()), op, x, y)
a61af66fc99e Initial load
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parents:
diff changeset
970 , _lock_stack(lock_stack) {
a61af66fc99e Initial load
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parents:
diff changeset
971 set_flag(IsStrictfpFlag, is_strictfp);
a61af66fc99e Initial load
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parents:
diff changeset
972 if (can_trap()) pin();
a61af66fc99e Initial load
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parents:
diff changeset
973 }
a61af66fc99e Initial load
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parents:
diff changeset
974
a61af66fc99e Initial load
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parents:
diff changeset
975 // accessors
a61af66fc99e Initial load
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parents:
diff changeset
976 ValueStack* lock_stack() const { return _lock_stack; }
a61af66fc99e Initial load
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parents:
diff changeset
977 bool is_strictfp() const { return check_flag(IsStrictfpFlag); }
a61af66fc99e Initial load
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parents:
diff changeset
978
a61af66fc99e Initial load
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parents:
diff changeset
979 // setters
a61af66fc99e Initial load
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parents:
diff changeset
980 void set_lock_stack(ValueStack* l) { _lock_stack = l; }
a61af66fc99e Initial load
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parents:
diff changeset
981
a61af66fc99e Initial load
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parents:
diff changeset
982 // generic
a61af66fc99e Initial load
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parents:
diff changeset
983 virtual bool is_commutative() const;
a61af66fc99e Initial load
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parents:
diff changeset
984 virtual bool can_trap() const;
a61af66fc99e Initial load
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parents:
diff changeset
985 virtual void other_values_do(void f(Value*));
a61af66fc99e Initial load
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parents:
diff changeset
986 HASHING3(Op2, true, op(), x()->subst(), y()->subst())
a61af66fc99e Initial load
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parents:
diff changeset
987 };
a61af66fc99e Initial load
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parents:
diff changeset
988
a61af66fc99e Initial load
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parents:
diff changeset
989
a61af66fc99e Initial load
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parents:
diff changeset
990 LEAF(ShiftOp, Op2)
a61af66fc99e Initial load
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parents:
diff changeset
991 public:
a61af66fc99e Initial load
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parents:
diff changeset
992 // creation
a61af66fc99e Initial load
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parents:
diff changeset
993 ShiftOp(Bytecodes::Code op, Value x, Value s) : Op2(x->type()->base(), op, x, s) {}
a61af66fc99e Initial load
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parents:
diff changeset
994
a61af66fc99e Initial load
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parents:
diff changeset
995 // generic
a61af66fc99e Initial load
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parents:
diff changeset
996 HASHING3(Op2, true, op(), x()->subst(), y()->subst())
a61af66fc99e Initial load
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parents:
diff changeset
997 };
a61af66fc99e Initial load
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parents:
diff changeset
998
a61af66fc99e Initial load
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parents:
diff changeset
999
a61af66fc99e Initial load
duke
parents:
diff changeset
1000 LEAF(LogicOp, Op2)
a61af66fc99e Initial load
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parents:
diff changeset
1001 public:
a61af66fc99e Initial load
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parents:
diff changeset
1002 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1003 LogicOp(Bytecodes::Code op, Value x, Value y) : Op2(x->type()->meet(y->type()), op, x, y) {}
a61af66fc99e Initial load
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parents:
diff changeset
1004
a61af66fc99e Initial load
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parents:
diff changeset
1005 // generic
a61af66fc99e Initial load
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parents:
diff changeset
1006 virtual bool is_commutative() const;
a61af66fc99e Initial load
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parents:
diff changeset
1007 HASHING3(Op2, true, op(), x()->subst(), y()->subst())
a61af66fc99e Initial load
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parents:
diff changeset
1008 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1009
a61af66fc99e Initial load
duke
parents:
diff changeset
1010
a61af66fc99e Initial load
duke
parents:
diff changeset
1011 LEAF(CompareOp, Op2)
a61af66fc99e Initial load
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parents:
diff changeset
1012 private:
a61af66fc99e Initial load
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parents:
diff changeset
1013 ValueStack* _state_before; // for deoptimization, when canonicalizing
a61af66fc99e Initial load
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parents:
diff changeset
1014 public:
a61af66fc99e Initial load
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parents:
diff changeset
1015 // creation
a61af66fc99e Initial load
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parents:
diff changeset
1016 CompareOp(Bytecodes::Code op, Value x, Value y, ValueStack* state_before)
a61af66fc99e Initial load
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parents:
diff changeset
1017 : Op2(intType, op, x, y)
a61af66fc99e Initial load
duke
parents:
diff changeset
1018 , _state_before(state_before)
a61af66fc99e Initial load
duke
parents:
diff changeset
1019 {}
a61af66fc99e Initial load
duke
parents:
diff changeset
1020
a61af66fc99e Initial load
duke
parents:
diff changeset
1021 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1022 ValueStack* state_before() const { return _state_before; }
a61af66fc99e Initial load
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parents:
diff changeset
1023
a61af66fc99e Initial load
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parents:
diff changeset
1024 // generic
a61af66fc99e Initial load
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parents:
diff changeset
1025 HASHING3(Op2, true, op(), x()->subst(), y()->subst())
a61af66fc99e Initial load
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parents:
diff changeset
1026 virtual void other_values_do(void f(Value*));
a61af66fc99e Initial load
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parents:
diff changeset
1027 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1028
a61af66fc99e Initial load
duke
parents:
diff changeset
1029
a61af66fc99e Initial load
duke
parents:
diff changeset
1030 LEAF(IfOp, Op2)
a61af66fc99e Initial load
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parents:
diff changeset
1031 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1032 Value _tval;
a61af66fc99e Initial load
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parents:
diff changeset
1033 Value _fval;
a61af66fc99e Initial load
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parents:
diff changeset
1034
a61af66fc99e Initial load
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parents:
diff changeset
1035 public:
a61af66fc99e Initial load
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parents:
diff changeset
1036 // creation
a61af66fc99e Initial load
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parents:
diff changeset
1037 IfOp(Value x, Condition cond, Value y, Value tval, Value fval)
a61af66fc99e Initial load
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parents:
diff changeset
1038 : Op2(tval->type()->meet(fval->type()), (Bytecodes::Code)cond, x, y)
a61af66fc99e Initial load
duke
parents:
diff changeset
1039 , _tval(tval)
a61af66fc99e Initial load
duke
parents:
diff changeset
1040 , _fval(fval)
a61af66fc99e Initial load
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parents:
diff changeset
1041 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1042 ASSERT_VALUES
a61af66fc99e Initial load
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parents:
diff changeset
1043 assert(tval->type()->tag() == fval->type()->tag(), "types must match");
a61af66fc99e Initial load
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parents:
diff changeset
1044 }
a61af66fc99e Initial load
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parents:
diff changeset
1045
a61af66fc99e Initial load
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parents:
diff changeset
1046 // accessors
a61af66fc99e Initial load
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parents:
diff changeset
1047 virtual bool is_commutative() const;
a61af66fc99e Initial load
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parents:
diff changeset
1048 Bytecodes::Code op() const { ShouldNotCallThis(); return Bytecodes::_illegal; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1049 Condition cond() const { return (Condition)Op2::op(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1050 Value tval() const { return _tval; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1051 Value fval() const { return _fval; }
a61af66fc99e Initial load
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parents:
diff changeset
1052
a61af66fc99e Initial load
duke
parents:
diff changeset
1053 // generic
a61af66fc99e Initial load
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parents:
diff changeset
1054 virtual void input_values_do(void f(Value*)) { Op2::input_values_do(f); f(&_tval); f(&_fval); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1055 };
a61af66fc99e Initial load
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parents:
diff changeset
1056
a61af66fc99e Initial load
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parents:
diff changeset
1057
a61af66fc99e Initial load
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parents:
diff changeset
1058 LEAF(Convert, Instruction)
a61af66fc99e Initial load
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parents:
diff changeset
1059 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1060 Bytecodes::Code _op;
a61af66fc99e Initial load
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parents:
diff changeset
1061 Value _value;
a61af66fc99e Initial load
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parents:
diff changeset
1062
a61af66fc99e Initial load
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parents:
diff changeset
1063 public:
a61af66fc99e Initial load
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parents:
diff changeset
1064 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1065 Convert(Bytecodes::Code op, Value value, ValueType* to_type) : Instruction(to_type), _op(op), _value(value) {
a61af66fc99e Initial load
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parents:
diff changeset
1066 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1067 }
a61af66fc99e Initial load
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parents:
diff changeset
1068
a61af66fc99e Initial load
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parents:
diff changeset
1069 // accessors
a61af66fc99e Initial load
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parents:
diff changeset
1070 Bytecodes::Code op() const { return _op; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1071 Value value() const { return _value; }
a61af66fc99e Initial load
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parents:
diff changeset
1072
a61af66fc99e Initial load
duke
parents:
diff changeset
1073 // generic
a61af66fc99e Initial load
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parents:
diff changeset
1074 virtual void input_values_do(void f(Value*)) { f(&_value); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1075 HASHING2(Convert, true, op(), value()->subst())
a61af66fc99e Initial load
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parents:
diff changeset
1076 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1077
a61af66fc99e Initial load
duke
parents:
diff changeset
1078
a61af66fc99e Initial load
duke
parents:
diff changeset
1079 LEAF(NullCheck, Instruction)
a61af66fc99e Initial load
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parents:
diff changeset
1080 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1081 Value _obj;
a61af66fc99e Initial load
duke
parents:
diff changeset
1082 ValueStack* _lock_stack;
a61af66fc99e Initial load
duke
parents:
diff changeset
1083
a61af66fc99e Initial load
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parents:
diff changeset
1084 public:
a61af66fc99e Initial load
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parents:
diff changeset
1085 // creation
a61af66fc99e Initial load
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parents:
diff changeset
1086 NullCheck(Value obj, ValueStack* lock_stack) : Instruction(obj->type()->base()), _obj(obj), _lock_stack(lock_stack) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1087 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1088 set_can_trap(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
1089 assert(_obj->type()->is_object(), "null check must be applied to objects only");
a61af66fc99e Initial load
duke
parents:
diff changeset
1090 pin(Instruction::PinExplicitNullCheck);
a61af66fc99e Initial load
duke
parents:
diff changeset
1091 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1092
a61af66fc99e Initial load
duke
parents:
diff changeset
1093 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1094 Value obj() const { return _obj; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1095 ValueStack* lock_stack() const { return _lock_stack; }
a61af66fc99e Initial load
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parents:
diff changeset
1096
a61af66fc99e Initial load
duke
parents:
diff changeset
1097 // setters
a61af66fc99e Initial load
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parents:
diff changeset
1098 void set_lock_stack(ValueStack* l) { _lock_stack = l; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1099 void set_can_trap(bool can_trap) { set_flag(CanTrapFlag, can_trap); }
a61af66fc99e Initial load
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parents:
diff changeset
1100
a61af66fc99e Initial load
duke
parents:
diff changeset
1101 // generic
a61af66fc99e Initial load
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parents:
diff changeset
1102 virtual bool can_trap() const { return check_flag(CanTrapFlag); /* null-check elimination sets to false */ }
a61af66fc99e Initial load
duke
parents:
diff changeset
1103 virtual void input_values_do(void f(Value*)) { f(&_obj); }
a61af66fc99e Initial load
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parents:
diff changeset
1104 virtual void other_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
1105 HASHING1(NullCheck, true, obj()->subst())
a61af66fc99e Initial load
duke
parents:
diff changeset
1106 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1107
a61af66fc99e Initial load
duke
parents:
diff changeset
1108
a61af66fc99e Initial load
duke
parents:
diff changeset
1109 BASE(StateSplit, Instruction)
a61af66fc99e Initial load
duke
parents:
diff changeset
1110 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1111 ValueStack* _state;
a61af66fc99e Initial load
duke
parents:
diff changeset
1112
a61af66fc99e Initial load
duke
parents:
diff changeset
1113 protected:
a61af66fc99e Initial load
duke
parents:
diff changeset
1114 static void substitute(BlockList& list, BlockBegin* old_block, BlockBegin* new_block);
a61af66fc99e Initial load
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parents:
diff changeset
1115
a61af66fc99e Initial load
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parents:
diff changeset
1116 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1117 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1118 StateSplit(ValueType* type) : Instruction(type), _state(NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1119 pin(PinStateSplitConstructor);
a61af66fc99e Initial load
duke
parents:
diff changeset
1120 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1121
a61af66fc99e Initial load
duke
parents:
diff changeset
1122 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1123 ValueStack* state() const { return _state; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1124 IRScope* scope() const; // the state's scope
a61af66fc99e Initial load
duke
parents:
diff changeset
1125
a61af66fc99e Initial load
duke
parents:
diff changeset
1126 // manipulation
a61af66fc99e Initial load
duke
parents:
diff changeset
1127 void set_state(ValueStack* state) { _state = state; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1128
a61af66fc99e Initial load
duke
parents:
diff changeset
1129 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1130 virtual void input_values_do(void f(Value*)) { /* no values */ }
a61af66fc99e Initial load
duke
parents:
diff changeset
1131 virtual void state_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
1132 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1133
a61af66fc99e Initial load
duke
parents:
diff changeset
1134
a61af66fc99e Initial load
duke
parents:
diff changeset
1135 LEAF(Invoke, StateSplit)
a61af66fc99e Initial load
duke
parents:
diff changeset
1136 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1137 Bytecodes::Code _code;
a61af66fc99e Initial load
duke
parents:
diff changeset
1138 Value _recv;
a61af66fc99e Initial load
duke
parents:
diff changeset
1139 Values* _args;
a61af66fc99e Initial load
duke
parents:
diff changeset
1140 BasicTypeList* _signature;
a61af66fc99e Initial load
duke
parents:
diff changeset
1141 int _vtable_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
1142 ciMethod* _target;
a61af66fc99e Initial load
duke
parents:
diff changeset
1143
a61af66fc99e Initial load
duke
parents:
diff changeset
1144 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1145 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1146 Invoke(Bytecodes::Code code, ValueType* result_type, Value recv, Values* args,
a61af66fc99e Initial load
duke
parents:
diff changeset
1147 int vtable_index, ciMethod* target);
a61af66fc99e Initial load
duke
parents:
diff changeset
1148
a61af66fc99e Initial load
duke
parents:
diff changeset
1149 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1150 Bytecodes::Code code() const { return _code; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1151 Value receiver() const { return _recv; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1152 bool has_receiver() const { return receiver() != NULL; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1153 int number_of_arguments() const { return _args->length(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1154 Value argument_at(int i) const { return _args->at(i); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1155 int vtable_index() const { return _vtable_index; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1156 BasicTypeList* signature() const { return _signature; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1157 ciMethod* target() const { return _target; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1158
a61af66fc99e Initial load
duke
parents:
diff changeset
1159 // Returns false if target is not loaded
a61af66fc99e Initial load
duke
parents:
diff changeset
1160 bool target_is_final() const { return check_flag(TargetIsFinalFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1161 bool target_is_loaded() const { return check_flag(TargetIsLoadedFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1162 // Returns false if target is not loaded
a61af66fc99e Initial load
duke
parents:
diff changeset
1163 bool target_is_strictfp() const { return check_flag(TargetIsStrictfpFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1164
a61af66fc99e Initial load
duke
parents:
diff changeset
1165 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1166 virtual bool can_trap() const { return true; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1167 virtual void input_values_do(void f(Value*)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1168 StateSplit::input_values_do(f);
a61af66fc99e Initial load
duke
parents:
diff changeset
1169 if (has_receiver()) f(&_recv);
a61af66fc99e Initial load
duke
parents:
diff changeset
1170 for (int i = 0; i < _args->length(); i++) f(_args->adr_at(i));
a61af66fc99e Initial load
duke
parents:
diff changeset
1171 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1172 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1173
a61af66fc99e Initial load
duke
parents:
diff changeset
1174
a61af66fc99e Initial load
duke
parents:
diff changeset
1175 LEAF(NewInstance, StateSplit)
a61af66fc99e Initial load
duke
parents:
diff changeset
1176 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1177 ciInstanceKlass* _klass;
a61af66fc99e Initial load
duke
parents:
diff changeset
1178
a61af66fc99e Initial load
duke
parents:
diff changeset
1179 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1180 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1181 NewInstance(ciInstanceKlass* klass) : StateSplit(instanceType), _klass(klass) {}
a61af66fc99e Initial load
duke
parents:
diff changeset
1182
a61af66fc99e Initial load
duke
parents:
diff changeset
1183 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1184 ciInstanceKlass* klass() const { return _klass; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1185
a61af66fc99e Initial load
duke
parents:
diff changeset
1186 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1187 virtual bool can_trap() const { return true; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1188 ciType* exact_type() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
1189 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1190
a61af66fc99e Initial load
duke
parents:
diff changeset
1191
a61af66fc99e Initial load
duke
parents:
diff changeset
1192 BASE(NewArray, StateSplit)
a61af66fc99e Initial load
duke
parents:
diff changeset
1193 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1194 Value _length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1195 ValueStack* _state_before;
a61af66fc99e Initial load
duke
parents:
diff changeset
1196
a61af66fc99e Initial load
duke
parents:
diff changeset
1197 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1198 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1199 NewArray(Value length, ValueStack* state_before) : StateSplit(objectType), _length(length), _state_before(state_before) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1200 // Do not ASSERT_VALUES since length is NULL for NewMultiArray
a61af66fc99e Initial load
duke
parents:
diff changeset
1201 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1202
a61af66fc99e Initial load
duke
parents:
diff changeset
1203 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1204 ValueStack* state_before() const { return _state_before; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1205 Value length() const { return _length; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1206
a61af66fc99e Initial load
duke
parents:
diff changeset
1207 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1208 virtual bool can_trap() const { return true; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1209 virtual void input_values_do(void f(Value*)) { StateSplit::input_values_do(f); f(&_length); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1210 virtual void other_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
1211 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1212
a61af66fc99e Initial load
duke
parents:
diff changeset
1213
a61af66fc99e Initial load
duke
parents:
diff changeset
1214 LEAF(NewTypeArray, NewArray)
a61af66fc99e Initial load
duke
parents:
diff changeset
1215 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1216 BasicType _elt_type;
a61af66fc99e Initial load
duke
parents:
diff changeset
1217
a61af66fc99e Initial load
duke
parents:
diff changeset
1218 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1219 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1220 NewTypeArray(Value length, BasicType elt_type) : NewArray(length, NULL), _elt_type(elt_type) {}
a61af66fc99e Initial load
duke
parents:
diff changeset
1221
a61af66fc99e Initial load
duke
parents:
diff changeset
1222 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1223 BasicType elt_type() const { return _elt_type; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1224 ciType* exact_type() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
1225 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1226
a61af66fc99e Initial load
duke
parents:
diff changeset
1227
a61af66fc99e Initial load
duke
parents:
diff changeset
1228 LEAF(NewObjectArray, NewArray)
a61af66fc99e Initial load
duke
parents:
diff changeset
1229 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1230 ciKlass* _klass;
a61af66fc99e Initial load
duke
parents:
diff changeset
1231
a61af66fc99e Initial load
duke
parents:
diff changeset
1232 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1233 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1234 NewObjectArray(ciKlass* klass, Value length, ValueStack* state_before) : NewArray(length, state_before), _klass(klass) {}
a61af66fc99e Initial load
duke
parents:
diff changeset
1235
a61af66fc99e Initial load
duke
parents:
diff changeset
1236 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1237 ciKlass* klass() const { return _klass; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1238 ciType* exact_type() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
1239 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1240
a61af66fc99e Initial load
duke
parents:
diff changeset
1241
a61af66fc99e Initial load
duke
parents:
diff changeset
1242 LEAF(NewMultiArray, NewArray)
a61af66fc99e Initial load
duke
parents:
diff changeset
1243 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1244 ciKlass* _klass;
a61af66fc99e Initial load
duke
parents:
diff changeset
1245 Values* _dims;
a61af66fc99e Initial load
duke
parents:
diff changeset
1246
a61af66fc99e Initial load
duke
parents:
diff changeset
1247 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1248 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1249 NewMultiArray(ciKlass* klass, Values* dims, ValueStack* state_before) : NewArray(NULL, state_before), _klass(klass), _dims(dims) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1250 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1251 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1252
a61af66fc99e Initial load
duke
parents:
diff changeset
1253 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1254 ciKlass* klass() const { return _klass; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1255 Values* dims() const { return _dims; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1256 int rank() const { return dims()->length(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1257
a61af66fc99e Initial load
duke
parents:
diff changeset
1258 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1259 virtual void input_values_do(void f(Value*)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1260 // NOTE: we do not call NewArray::input_values_do since "length"
a61af66fc99e Initial load
duke
parents:
diff changeset
1261 // is meaningless for a multi-dimensional array; passing the
a61af66fc99e Initial load
duke
parents:
diff changeset
1262 // zeroth element down to NewArray as its length is a bad idea
a61af66fc99e Initial load
duke
parents:
diff changeset
1263 // since there will be a copy in the "dims" array which doesn't
a61af66fc99e Initial load
duke
parents:
diff changeset
1264 // get updated, and the value must not be traversed twice. Was bug
a61af66fc99e Initial load
duke
parents:
diff changeset
1265 // - kbr 4/10/2001
a61af66fc99e Initial load
duke
parents:
diff changeset
1266 StateSplit::input_values_do(f);
a61af66fc99e Initial load
duke
parents:
diff changeset
1267 for (int i = 0; i < _dims->length(); i++) f(_dims->adr_at(i));
a61af66fc99e Initial load
duke
parents:
diff changeset
1268 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1269 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1270
a61af66fc99e Initial load
duke
parents:
diff changeset
1271
a61af66fc99e Initial load
duke
parents:
diff changeset
1272 BASE(TypeCheck, StateSplit)
a61af66fc99e Initial load
duke
parents:
diff changeset
1273 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1274 ciKlass* _klass;
a61af66fc99e Initial load
duke
parents:
diff changeset
1275 Value _obj;
a61af66fc99e Initial load
duke
parents:
diff changeset
1276 ValueStack* _state_before;
a61af66fc99e Initial load
duke
parents:
diff changeset
1277
a61af66fc99e Initial load
duke
parents:
diff changeset
1278 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1279 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1280 TypeCheck(ciKlass* klass, Value obj, ValueType* type, ValueStack* state_before) : StateSplit(type), _klass(klass), _obj(obj), _state_before(state_before) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1281 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1282 set_direct_compare(false);
a61af66fc99e Initial load
duke
parents:
diff changeset
1283 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1284
a61af66fc99e Initial load
duke
parents:
diff changeset
1285 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1286 ValueStack* state_before() const { return _state_before; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1287 ciKlass* klass() const { return _klass; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1288 Value obj() const { return _obj; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1289 bool is_loaded() const { return klass() != NULL; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1290 bool direct_compare() const { return check_flag(DirectCompareFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1291
a61af66fc99e Initial load
duke
parents:
diff changeset
1292 // manipulation
a61af66fc99e Initial load
duke
parents:
diff changeset
1293 void set_direct_compare(bool flag) { set_flag(DirectCompareFlag, flag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1294
a61af66fc99e Initial load
duke
parents:
diff changeset
1295 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1296 virtual bool can_trap() const { return true; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1297 virtual void input_values_do(void f(Value*)) { StateSplit::input_values_do(f); f(&_obj); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1298 virtual void other_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
1299 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1300
a61af66fc99e Initial load
duke
parents:
diff changeset
1301
a61af66fc99e Initial load
duke
parents:
diff changeset
1302 LEAF(CheckCast, TypeCheck)
a61af66fc99e Initial load
duke
parents:
diff changeset
1303 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1304 ciMethod* _profiled_method;
a61af66fc99e Initial load
duke
parents:
diff changeset
1305 int _profiled_bci;
a61af66fc99e Initial load
duke
parents:
diff changeset
1306
a61af66fc99e Initial load
duke
parents:
diff changeset
1307 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1308 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1309 CheckCast(ciKlass* klass, Value obj, ValueStack* state_before)
a61af66fc99e Initial load
duke
parents:
diff changeset
1310 : TypeCheck(klass, obj, objectType, state_before)
a61af66fc99e Initial load
duke
parents:
diff changeset
1311 , _profiled_method(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1312 , _profiled_bci(0) {}
a61af66fc99e Initial load
duke
parents:
diff changeset
1313
a61af66fc99e Initial load
duke
parents:
diff changeset
1314 void set_incompatible_class_change_check() {
a61af66fc99e Initial load
duke
parents:
diff changeset
1315 set_flag(ThrowIncompatibleClassChangeErrorFlag, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
1316 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1317 bool is_incompatible_class_change_check() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
1318 return check_flag(ThrowIncompatibleClassChangeErrorFlag);
a61af66fc99e Initial load
duke
parents:
diff changeset
1319 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1320
a61af66fc99e Initial load
duke
parents:
diff changeset
1321 // Helpers for methodDataOop profiling
a61af66fc99e Initial load
duke
parents:
diff changeset
1322 void set_should_profile(bool value) { set_flag(ProfileMDOFlag, value); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1323 void set_profiled_method(ciMethod* method) { _profiled_method = method; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1324 void set_profiled_bci(int bci) { _profiled_bci = bci; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1325 bool should_profile() const { return check_flag(ProfileMDOFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1326 ciMethod* profiled_method() const { return _profiled_method; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1327 int profiled_bci() const { return _profiled_bci; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1328
a61af66fc99e Initial load
duke
parents:
diff changeset
1329 ciType* declared_type() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
1330 ciType* exact_type() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
1331
a61af66fc99e Initial load
duke
parents:
diff changeset
1332 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1333
a61af66fc99e Initial load
duke
parents:
diff changeset
1334
a61af66fc99e Initial load
duke
parents:
diff changeset
1335 LEAF(InstanceOf, TypeCheck)
a61af66fc99e Initial load
duke
parents:
diff changeset
1336 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1337 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1338 InstanceOf(ciKlass* klass, Value obj, ValueStack* state_before) : TypeCheck(klass, obj, intType, state_before) {}
a61af66fc99e Initial load
duke
parents:
diff changeset
1339 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1340
a61af66fc99e Initial load
duke
parents:
diff changeset
1341
a61af66fc99e Initial load
duke
parents:
diff changeset
1342 BASE(AccessMonitor, StateSplit)
a61af66fc99e Initial load
duke
parents:
diff changeset
1343 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1344 Value _obj;
a61af66fc99e Initial load
duke
parents:
diff changeset
1345 int _monitor_no;
a61af66fc99e Initial load
duke
parents:
diff changeset
1346
a61af66fc99e Initial load
duke
parents:
diff changeset
1347 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1348 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1349 AccessMonitor(Value obj, int monitor_no)
a61af66fc99e Initial load
duke
parents:
diff changeset
1350 : StateSplit(illegalType)
a61af66fc99e Initial load
duke
parents:
diff changeset
1351 , _obj(obj)
a61af66fc99e Initial load
duke
parents:
diff changeset
1352 , _monitor_no(monitor_no)
a61af66fc99e Initial load
duke
parents:
diff changeset
1353 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1354 set_needs_null_check(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
1355 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1356 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1357
a61af66fc99e Initial load
duke
parents:
diff changeset
1358 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1359 Value obj() const { return _obj; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1360 int monitor_no() const { return _monitor_no; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1361
a61af66fc99e Initial load
duke
parents:
diff changeset
1362 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1363 virtual void input_values_do(void f(Value*)) { StateSplit::input_values_do(f); f(&_obj); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1364 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1365
a61af66fc99e Initial load
duke
parents:
diff changeset
1366
a61af66fc99e Initial load
duke
parents:
diff changeset
1367 LEAF(MonitorEnter, AccessMonitor)
a61af66fc99e Initial load
duke
parents:
diff changeset
1368 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1369 ValueStack* _lock_stack_before;
a61af66fc99e Initial load
duke
parents:
diff changeset
1370
a61af66fc99e Initial load
duke
parents:
diff changeset
1371 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1372 // creation
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duke
parents:
diff changeset
1373 MonitorEnter(Value obj, int monitor_no, ValueStack* lock_stack_before)
a61af66fc99e Initial load
duke
parents:
diff changeset
1374 : AccessMonitor(obj, monitor_no)
a61af66fc99e Initial load
duke
parents:
diff changeset
1375 , _lock_stack_before(lock_stack_before)
a61af66fc99e Initial load
duke
parents:
diff changeset
1376 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1377 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1378 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1379
a61af66fc99e Initial load
duke
parents:
diff changeset
1380 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1381 ValueStack* lock_stack_before() const { return _lock_stack_before; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1382 virtual void state_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
1383
a61af66fc99e Initial load
duke
parents:
diff changeset
1384 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1385 virtual bool can_trap() const { return true; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1386 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1387
a61af66fc99e Initial load
duke
parents:
diff changeset
1388
a61af66fc99e Initial load
duke
parents:
diff changeset
1389 LEAF(MonitorExit, AccessMonitor)
a61af66fc99e Initial load
duke
parents:
diff changeset
1390 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1391 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1392 MonitorExit(Value obj, int monitor_no) : AccessMonitor(obj, monitor_no) {}
a61af66fc99e Initial load
duke
parents:
diff changeset
1393 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1394
a61af66fc99e Initial load
duke
parents:
diff changeset
1395
a61af66fc99e Initial load
duke
parents:
diff changeset
1396 LEAF(Intrinsic, StateSplit)
a61af66fc99e Initial load
duke
parents:
diff changeset
1397 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1398 vmIntrinsics::ID _id;
a61af66fc99e Initial load
duke
parents:
diff changeset
1399 Values* _args;
a61af66fc99e Initial load
duke
parents:
diff changeset
1400 ValueStack* _lock_stack;
a61af66fc99e Initial load
duke
parents:
diff changeset
1401 Value _recv;
a61af66fc99e Initial load
duke
parents:
diff changeset
1402
a61af66fc99e Initial load
duke
parents:
diff changeset
1403 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1404 // preserves_state can be set to true for Intrinsics
a61af66fc99e Initial load
duke
parents:
diff changeset
1405 // which are guaranteed to preserve register state across any slow
a61af66fc99e Initial load
duke
parents:
diff changeset
1406 // cases; setting it to true does not mean that the Intrinsic can
a61af66fc99e Initial load
duke
parents:
diff changeset
1407 // not trap, only that if we continue execution in the same basic
a61af66fc99e Initial load
duke
parents:
diff changeset
1408 // block after the Intrinsic, all of the registers are intact. This
a61af66fc99e Initial load
duke
parents:
diff changeset
1409 // allows load elimination and common expression elimination to be
a61af66fc99e Initial load
duke
parents:
diff changeset
1410 // performed across the Intrinsic. The default value is false.
a61af66fc99e Initial load
duke
parents:
diff changeset
1411 Intrinsic(ValueType* type,
a61af66fc99e Initial load
duke
parents:
diff changeset
1412 vmIntrinsics::ID id,
a61af66fc99e Initial load
duke
parents:
diff changeset
1413 Values* args,
a61af66fc99e Initial load
duke
parents:
diff changeset
1414 bool has_receiver,
a61af66fc99e Initial load
duke
parents:
diff changeset
1415 ValueStack* lock_stack,
a61af66fc99e Initial load
duke
parents:
diff changeset
1416 bool preserves_state,
a61af66fc99e Initial load
duke
parents:
diff changeset
1417 bool cantrap = true)
a61af66fc99e Initial load
duke
parents:
diff changeset
1418 : StateSplit(type)
a61af66fc99e Initial load
duke
parents:
diff changeset
1419 , _id(id)
a61af66fc99e Initial load
duke
parents:
diff changeset
1420 , _args(args)
a61af66fc99e Initial load
duke
parents:
diff changeset
1421 , _lock_stack(lock_stack)
a61af66fc99e Initial load
duke
parents:
diff changeset
1422 , _recv(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1423 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1424 assert(args != NULL, "args must exist");
a61af66fc99e Initial load
duke
parents:
diff changeset
1425 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1426 set_flag(PreservesStateFlag, preserves_state);
a61af66fc99e Initial load
duke
parents:
diff changeset
1427 set_flag(CanTrapFlag, cantrap);
a61af66fc99e Initial load
duke
parents:
diff changeset
1428 if (has_receiver) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1429 _recv = argument_at(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
1430 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1431 set_needs_null_check(has_receiver);
a61af66fc99e Initial load
duke
parents:
diff changeset
1432
a61af66fc99e Initial load
duke
parents:
diff changeset
1433 // some intrinsics can't trap, so don't force them to be pinned
a61af66fc99e Initial load
duke
parents:
diff changeset
1434 if (!can_trap()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1435 unpin(PinStateSplitConstructor);
a61af66fc99e Initial load
duke
parents:
diff changeset
1436 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1437 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1438
a61af66fc99e Initial load
duke
parents:
diff changeset
1439 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1440 vmIntrinsics::ID id() const { return _id; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1441 int number_of_arguments() const { return _args->length(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1442 Value argument_at(int i) const { return _args->at(i); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1443 ValueStack* lock_stack() const { return _lock_stack; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1444
a61af66fc99e Initial load
duke
parents:
diff changeset
1445 bool has_receiver() const { return (_recv != NULL); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1446 Value receiver() const { assert(has_receiver(), "must have receiver"); return _recv; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1447 bool preserves_state() const { return check_flag(PreservesStateFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1448
a61af66fc99e Initial load
duke
parents:
diff changeset
1449 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1450 virtual bool can_trap() const { return check_flag(CanTrapFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1451 virtual void input_values_do(void f(Value*)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1452 StateSplit::input_values_do(f);
a61af66fc99e Initial load
duke
parents:
diff changeset
1453 for (int i = 0; i < _args->length(); i++) f(_args->adr_at(i));
a61af66fc99e Initial load
duke
parents:
diff changeset
1454 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1455 virtual void state_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
1456
a61af66fc99e Initial load
duke
parents:
diff changeset
1457 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1458
a61af66fc99e Initial load
duke
parents:
diff changeset
1459
a61af66fc99e Initial load
duke
parents:
diff changeset
1460 class LIR_List;
a61af66fc99e Initial load
duke
parents:
diff changeset
1461
a61af66fc99e Initial load
duke
parents:
diff changeset
1462 LEAF(BlockBegin, StateSplit)
a61af66fc99e Initial load
duke
parents:
diff changeset
1463 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1464 static int _next_block_id; // the block counter
a61af66fc99e Initial load
duke
parents:
diff changeset
1465
a61af66fc99e Initial load
duke
parents:
diff changeset
1466 int _block_id; // the unique block id
a61af66fc99e Initial load
duke
parents:
diff changeset
1467 int _depth_first_number; // number of this block in a depth-first ordering
a61af66fc99e Initial load
duke
parents:
diff changeset
1468 int _linear_scan_number; // number of this block in linear-scan ordering
a61af66fc99e Initial load
duke
parents:
diff changeset
1469 int _loop_depth; // the loop nesting level of this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1470 int _loop_index; // number of the innermost loop of this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1471 int _flags; // the flags associated with this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1472
a61af66fc99e Initial load
duke
parents:
diff changeset
1473 // fields used by BlockListBuilder
a61af66fc99e Initial load
duke
parents:
diff changeset
1474 int _total_preds; // number of predecessors found by BlockListBuilder
a61af66fc99e Initial load
duke
parents:
diff changeset
1475 BitMap _stores_to_locals; // bit is set when a local variable is stored in the block
a61af66fc99e Initial load
duke
parents:
diff changeset
1476
a61af66fc99e Initial load
duke
parents:
diff changeset
1477 // SSA specific fields: (factor out later)
a61af66fc99e Initial load
duke
parents:
diff changeset
1478 BlockList _successors; // the successors of this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1479 BlockList _predecessors; // the predecessors of this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1480 BlockBegin* _dominator; // the dominator of this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1481 // SSA specific ends
a61af66fc99e Initial load
duke
parents:
diff changeset
1482 BlockEnd* _end; // the last instruction of this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1483 BlockList _exception_handlers; // the exception handlers potentially invoked by this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1484 ValueStackStack* _exception_states; // only for xhandler entries: states of all instructions that have an edge to this xhandler
a61af66fc99e Initial load
duke
parents:
diff changeset
1485 int _exception_handler_pco; // if this block is the start of an exception handler,
a61af66fc99e Initial load
duke
parents:
diff changeset
1486 // this records the PC offset in the assembly code of the
a61af66fc99e Initial load
duke
parents:
diff changeset
1487 // first instruction in this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1488 Label _label; // the label associated with this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1489 LIR_List* _lir; // the low level intermediate representation for this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1490
a61af66fc99e Initial load
duke
parents:
diff changeset
1491 BitMap _live_in; // set of live LIR_Opr registers at entry to this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1492 BitMap _live_out; // set of live LIR_Opr registers at exit from this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1493 BitMap _live_gen; // set of registers used before any redefinition in this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1494 BitMap _live_kill; // set of registers defined in this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1495
a61af66fc99e Initial load
duke
parents:
diff changeset
1496 BitMap _fpu_register_usage;
a61af66fc99e Initial load
duke
parents:
diff changeset
1497 intArray* _fpu_stack_state; // For x86 FPU code generation with UseLinearScan
a61af66fc99e Initial load
duke
parents:
diff changeset
1498 int _first_lir_instruction_id; // ID of first LIR instruction in this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1499 int _last_lir_instruction_id; // ID of last LIR instruction in this block
a61af66fc99e Initial load
duke
parents:
diff changeset
1500
a61af66fc99e Initial load
duke
parents:
diff changeset
1501 void iterate_preorder (boolArray& mark, BlockClosure* closure);
a61af66fc99e Initial load
duke
parents:
diff changeset
1502 void iterate_postorder(boolArray& mark, BlockClosure* closure);
a61af66fc99e Initial load
duke
parents:
diff changeset
1503
a61af66fc99e Initial load
duke
parents:
diff changeset
1504 friend class SuxAndWeightAdjuster;
a61af66fc99e Initial load
duke
parents:
diff changeset
1505
a61af66fc99e Initial load
duke
parents:
diff changeset
1506 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1507 // initialization/counting
a61af66fc99e Initial load
duke
parents:
diff changeset
1508 static void initialize() { _next_block_id = 0; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1509 static int number_of_blocks() { return _next_block_id; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1510
a61af66fc99e Initial load
duke
parents:
diff changeset
1511 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1512 BlockBegin(int bci)
a61af66fc99e Initial load
duke
parents:
diff changeset
1513 : StateSplit(illegalType)
a61af66fc99e Initial load
duke
parents:
diff changeset
1514 , _block_id(_next_block_id++)
a61af66fc99e Initial load
duke
parents:
diff changeset
1515 , _depth_first_number(-1)
a61af66fc99e Initial load
duke
parents:
diff changeset
1516 , _linear_scan_number(-1)
a61af66fc99e Initial load
duke
parents:
diff changeset
1517 , _loop_depth(0)
a61af66fc99e Initial load
duke
parents:
diff changeset
1518 , _flags(0)
a61af66fc99e Initial load
duke
parents:
diff changeset
1519 , _dominator(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1520 , _end(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1521 , _predecessors(2)
a61af66fc99e Initial load
duke
parents:
diff changeset
1522 , _successors(2)
a61af66fc99e Initial load
duke
parents:
diff changeset
1523 , _exception_handlers(1)
a61af66fc99e Initial load
duke
parents:
diff changeset
1524 , _exception_states(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1525 , _exception_handler_pco(-1)
a61af66fc99e Initial load
duke
parents:
diff changeset
1526 , _lir(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1527 , _loop_index(-1)
a61af66fc99e Initial load
duke
parents:
diff changeset
1528 , _live_in()
a61af66fc99e Initial load
duke
parents:
diff changeset
1529 , _live_out()
a61af66fc99e Initial load
duke
parents:
diff changeset
1530 , _live_gen()
a61af66fc99e Initial load
duke
parents:
diff changeset
1531 , _live_kill()
a61af66fc99e Initial load
duke
parents:
diff changeset
1532 , _fpu_register_usage()
a61af66fc99e Initial load
duke
parents:
diff changeset
1533 , _fpu_stack_state(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1534 , _first_lir_instruction_id(-1)
a61af66fc99e Initial load
duke
parents:
diff changeset
1535 , _last_lir_instruction_id(-1)
a61af66fc99e Initial load
duke
parents:
diff changeset
1536 , _total_preds(0)
a61af66fc99e Initial load
duke
parents:
diff changeset
1537 , _stores_to_locals()
a61af66fc99e Initial load
duke
parents:
diff changeset
1538 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1539 set_bci(bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
1540 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1541
a61af66fc99e Initial load
duke
parents:
diff changeset
1542 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1543 int block_id() const { return _block_id; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1544 BlockList* successors() { return &_successors; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1545 BlockBegin* dominator() const { return _dominator; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1546 int loop_depth() const { return _loop_depth; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1547 int depth_first_number() const { return _depth_first_number; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1548 int linear_scan_number() const { return _linear_scan_number; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1549 BlockEnd* end() const { return _end; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1550 Label* label() { return &_label; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1551 LIR_List* lir() const { return _lir; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1552 int exception_handler_pco() const { return _exception_handler_pco; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1553 BitMap& live_in() { return _live_in; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1554 BitMap& live_out() { return _live_out; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1555 BitMap& live_gen() { return _live_gen; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1556 BitMap& live_kill() { return _live_kill; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1557 BitMap& fpu_register_usage() { return _fpu_register_usage; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1558 intArray* fpu_stack_state() const { return _fpu_stack_state; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1559 int first_lir_instruction_id() const { return _first_lir_instruction_id; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1560 int last_lir_instruction_id() const { return _last_lir_instruction_id; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1561 int total_preds() const { return _total_preds; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1562 BitMap& stores_to_locals() { return _stores_to_locals; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1563
a61af66fc99e Initial load
duke
parents:
diff changeset
1564 // manipulation
a61af66fc99e Initial load
duke
parents:
diff changeset
1565 void set_bci(int bci) { Instruction::set_bci(bci); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1566 void set_dominator(BlockBegin* dom) { _dominator = dom; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1567 void set_loop_depth(int d) { _loop_depth = d; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1568 void set_depth_first_number(int dfn) { _depth_first_number = dfn; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1569 void set_linear_scan_number(int lsn) { _linear_scan_number = lsn; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1570 void set_end(BlockEnd* end);
a61af66fc99e Initial load
duke
parents:
diff changeset
1571 void disconnect_from_graph();
a61af66fc99e Initial load
duke
parents:
diff changeset
1572 static void disconnect_edge(BlockBegin* from, BlockBegin* to);
a61af66fc99e Initial load
duke
parents:
diff changeset
1573 BlockBegin* insert_block_between(BlockBegin* sux);
a61af66fc99e Initial load
duke
parents:
diff changeset
1574 void substitute_sux(BlockBegin* old_sux, BlockBegin* new_sux);
a61af66fc99e Initial load
duke
parents:
diff changeset
1575 void set_lir(LIR_List* lir) { _lir = lir; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1576 void set_exception_handler_pco(int pco) { _exception_handler_pco = pco; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1577 void set_live_in (BitMap map) { _live_in = map; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1578 void set_live_out (BitMap map) { _live_out = map; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1579 void set_live_gen (BitMap map) { _live_gen = map; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1580 void set_live_kill (BitMap map) { _live_kill = map; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1581 void set_fpu_register_usage(BitMap map) { _fpu_register_usage = map; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1582 void set_fpu_stack_state(intArray* state) { _fpu_stack_state = state; }
a61af66fc99e Initial load
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parents:
diff changeset
1583 void set_first_lir_instruction_id(int id) { _first_lir_instruction_id = id; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1584 void set_last_lir_instruction_id(int id) { _last_lir_instruction_id = id; }
a61af66fc99e Initial load
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parents:
diff changeset
1585 void increment_total_preds(int n = 1) { _total_preds += n; }
a61af66fc99e Initial load
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parents:
diff changeset
1586 void init_stores_to_locals(int locals_count) { _stores_to_locals = BitMap(locals_count); _stores_to_locals.clear(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1587
a61af66fc99e Initial load
duke
parents:
diff changeset
1588 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1589 virtual void state_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
1590
a61af66fc99e Initial load
duke
parents:
diff changeset
1591 // successors and predecessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1592 int number_of_sux() const;
a61af66fc99e Initial load
duke
parents:
diff changeset
1593 BlockBegin* sux_at(int i) const;
a61af66fc99e Initial load
duke
parents:
diff changeset
1594 void add_successor(BlockBegin* sux);
a61af66fc99e Initial load
duke
parents:
diff changeset
1595 void remove_successor(BlockBegin* pred);
a61af66fc99e Initial load
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parents:
diff changeset
1596 bool is_successor(BlockBegin* sux) const { return _successors.contains(sux); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1597
a61af66fc99e Initial load
duke
parents:
diff changeset
1598 void add_predecessor(BlockBegin* pred);
a61af66fc99e Initial load
duke
parents:
diff changeset
1599 void remove_predecessor(BlockBegin* pred);
a61af66fc99e Initial load
duke
parents:
diff changeset
1600 bool is_predecessor(BlockBegin* pred) const { return _predecessors.contains(pred); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1601 int number_of_preds() const { return _predecessors.length(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1602 BlockBegin* pred_at(int i) const { return _predecessors[i]; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1603
a61af66fc99e Initial load
duke
parents:
diff changeset
1604 // exception handlers potentially invoked by this block
a61af66fc99e Initial load
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parents:
diff changeset
1605 void add_exception_handler(BlockBegin* b);
a61af66fc99e Initial load
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parents:
diff changeset
1606 bool is_exception_handler(BlockBegin* b) const { return _exception_handlers.contains(b); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1607 int number_of_exception_handlers() const { return _exception_handlers.length(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1608 BlockBegin* exception_handler_at(int i) const { return _exception_handlers.at(i); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1609
a61af66fc99e Initial load
duke
parents:
diff changeset
1610 // states of the instructions that have an edge to this exception handler
a61af66fc99e Initial load
duke
parents:
diff changeset
1611 int number_of_exception_states() { assert(is_set(exception_entry_flag), "only for xhandlers"); return _exception_states == NULL ? 0 : _exception_states->length(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1612 ValueStack* exception_state_at(int idx) const { assert(is_set(exception_entry_flag), "only for xhandlers"); return _exception_states->at(idx); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1613 int add_exception_state(ValueStack* state);
a61af66fc99e Initial load
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parents:
diff changeset
1614
a61af66fc99e Initial load
duke
parents:
diff changeset
1615 // flags
a61af66fc99e Initial load
duke
parents:
diff changeset
1616 enum Flag {
a61af66fc99e Initial load
duke
parents:
diff changeset
1617 no_flag = 0,
a61af66fc99e Initial load
duke
parents:
diff changeset
1618 std_entry_flag = 1 << 0,
a61af66fc99e Initial load
duke
parents:
diff changeset
1619 osr_entry_flag = 1 << 1,
a61af66fc99e Initial load
duke
parents:
diff changeset
1620 exception_entry_flag = 1 << 2,
a61af66fc99e Initial load
duke
parents:
diff changeset
1621 subroutine_entry_flag = 1 << 3,
a61af66fc99e Initial load
duke
parents:
diff changeset
1622 backward_branch_target_flag = 1 << 4,
a61af66fc99e Initial load
duke
parents:
diff changeset
1623 is_on_work_list_flag = 1 << 5,
a61af66fc99e Initial load
duke
parents:
diff changeset
1624 was_visited_flag = 1 << 6,
a61af66fc99e Initial load
duke
parents:
diff changeset
1625 default_exception_handler_flag = 1 << 8, // identify block which represents the default exception handler
a61af66fc99e Initial load
duke
parents:
diff changeset
1626 parser_loop_header_flag = 1 << 9, // set by parser to identify blocks where phi functions can not be created on demand
a61af66fc99e Initial load
duke
parents:
diff changeset
1627 critical_edge_split_flag = 1 << 10, // set for all blocks that are introduced when critical edges are split
a61af66fc99e Initial load
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parents:
diff changeset
1628 linear_scan_loop_header_flag = 1 << 11, // set during loop-detection for LinearScan
a61af66fc99e Initial load
duke
parents:
diff changeset
1629 linear_scan_loop_end_flag = 1 << 12 // set during loop-detection for LinearScan
a61af66fc99e Initial load
duke
parents:
diff changeset
1630 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1631
a61af66fc99e Initial load
duke
parents:
diff changeset
1632 void set(Flag f) { _flags |= f; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1633 void clear(Flag f) { _flags &= ~f; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1634 bool is_set(Flag f) const { return (_flags & f) != 0; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1635 bool is_entry_block() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
1636 const int entry_mask = std_entry_flag | osr_entry_flag | exception_entry_flag;
a61af66fc99e Initial load
duke
parents:
diff changeset
1637 return (_flags & entry_mask) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1638 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1639
a61af66fc99e Initial load
duke
parents:
diff changeset
1640 // iteration
a61af66fc99e Initial load
duke
parents:
diff changeset
1641 void iterate_preorder (BlockClosure* closure);
a61af66fc99e Initial load
duke
parents:
diff changeset
1642 void iterate_postorder (BlockClosure* closure);
a61af66fc99e Initial load
duke
parents:
diff changeset
1643
a61af66fc99e Initial load
duke
parents:
diff changeset
1644 void block_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
1645
a61af66fc99e Initial load
duke
parents:
diff changeset
1646 // loops
a61af66fc99e Initial load
duke
parents:
diff changeset
1647 void set_loop_index(int ix) { _loop_index = ix; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1648 int loop_index() const { return _loop_index; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1649
a61af66fc99e Initial load
duke
parents:
diff changeset
1650 // merging
a61af66fc99e Initial load
duke
parents:
diff changeset
1651 bool try_merge(ValueStack* state); // try to merge states at block begin
a61af66fc99e Initial load
duke
parents:
diff changeset
1652 void merge(ValueStack* state) { bool b = try_merge(state); assert(b, "merge failed"); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1653
a61af66fc99e Initial load
duke
parents:
diff changeset
1654 // debugging
a61af66fc99e Initial load
duke
parents:
diff changeset
1655 void print_block() PRODUCT_RETURN;
a61af66fc99e Initial load
duke
parents:
diff changeset
1656 void print_block(InstructionPrinter& ip, bool live_only = false) PRODUCT_RETURN;
a61af66fc99e Initial load
duke
parents:
diff changeset
1657 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1658
a61af66fc99e Initial load
duke
parents:
diff changeset
1659
a61af66fc99e Initial load
duke
parents:
diff changeset
1660 BASE(BlockEnd, StateSplit)
a61af66fc99e Initial load
duke
parents:
diff changeset
1661 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1662 BlockBegin* _begin;
a61af66fc99e Initial load
duke
parents:
diff changeset
1663 BlockList* _sux;
a61af66fc99e Initial load
duke
parents:
diff changeset
1664 ValueStack* _state_before;
a61af66fc99e Initial load
duke
parents:
diff changeset
1665
a61af66fc99e Initial load
duke
parents:
diff changeset
1666 protected:
a61af66fc99e Initial load
duke
parents:
diff changeset
1667 BlockList* sux() const { return _sux; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1668
a61af66fc99e Initial load
duke
parents:
diff changeset
1669 void set_sux(BlockList* sux) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1670 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1671 assert(sux != NULL, "sux must exist");
a61af66fc99e Initial load
duke
parents:
diff changeset
1672 for (int i = sux->length() - 1; i >= 0; i--) assert(sux->at(i) != NULL, "sux must exist");
a61af66fc99e Initial load
duke
parents:
diff changeset
1673 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1674 _sux = sux;
a61af66fc99e Initial load
duke
parents:
diff changeset
1675 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1676
a61af66fc99e Initial load
duke
parents:
diff changeset
1677 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1678 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1679 BlockEnd(ValueType* type, ValueStack* state_before, bool is_safepoint)
a61af66fc99e Initial load
duke
parents:
diff changeset
1680 : StateSplit(type)
a61af66fc99e Initial load
duke
parents:
diff changeset
1681 , _begin(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1682 , _sux(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1683 , _state_before(state_before) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1684 set_flag(IsSafepointFlag, is_safepoint);
a61af66fc99e Initial load
duke
parents:
diff changeset
1685 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1686
a61af66fc99e Initial load
duke
parents:
diff changeset
1687 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1688 ValueStack* state_before() const { return _state_before; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1689 bool is_safepoint() const { return check_flag(IsSafepointFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1690 BlockBegin* begin() const { return _begin; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1691
a61af66fc99e Initial load
duke
parents:
diff changeset
1692 // manipulation
a61af66fc99e Initial load
duke
parents:
diff changeset
1693 void set_begin(BlockBegin* begin);
a61af66fc99e Initial load
duke
parents:
diff changeset
1694
a61af66fc99e Initial load
duke
parents:
diff changeset
1695 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1696 virtual void other_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
1697
a61af66fc99e Initial load
duke
parents:
diff changeset
1698 // successors
a61af66fc99e Initial load
duke
parents:
diff changeset
1699 int number_of_sux() const { return _sux != NULL ? _sux->length() : 0; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1700 BlockBegin* sux_at(int i) const { return _sux->at(i); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1701 BlockBegin* default_sux() const { return sux_at(number_of_sux() - 1); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1702 BlockBegin** addr_sux_at(int i) const { return _sux->adr_at(i); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1703 int sux_index(BlockBegin* sux) const { return _sux->find(sux); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1704 void substitute_sux(BlockBegin* old_sux, BlockBegin* new_sux);
a61af66fc99e Initial load
duke
parents:
diff changeset
1705 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1706
a61af66fc99e Initial load
duke
parents:
diff changeset
1707
a61af66fc99e Initial load
duke
parents:
diff changeset
1708 LEAF(Goto, BlockEnd)
a61af66fc99e Initial load
duke
parents:
diff changeset
1709 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1710 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1711 Goto(BlockBegin* sux, ValueStack* state_before, bool is_safepoint = false) : BlockEnd(illegalType, state_before, is_safepoint) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1712 BlockList* s = new BlockList(1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1713 s->append(sux);
a61af66fc99e Initial load
duke
parents:
diff changeset
1714 set_sux(s);
a61af66fc99e Initial load
duke
parents:
diff changeset
1715 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1716
a61af66fc99e Initial load
duke
parents:
diff changeset
1717 Goto(BlockBegin* sux, bool is_safepoint) : BlockEnd(illegalType, NULL, is_safepoint) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1718 BlockList* s = new BlockList(1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1719 s->append(sux);
a61af66fc99e Initial load
duke
parents:
diff changeset
1720 set_sux(s);
a61af66fc99e Initial load
duke
parents:
diff changeset
1721 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1722
a61af66fc99e Initial load
duke
parents:
diff changeset
1723 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1724
a61af66fc99e Initial load
duke
parents:
diff changeset
1725
a61af66fc99e Initial load
duke
parents:
diff changeset
1726 LEAF(If, BlockEnd)
a61af66fc99e Initial load
duke
parents:
diff changeset
1727 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1728 Value _x;
a61af66fc99e Initial load
duke
parents:
diff changeset
1729 Condition _cond;
a61af66fc99e Initial load
duke
parents:
diff changeset
1730 Value _y;
a61af66fc99e Initial load
duke
parents:
diff changeset
1731 ciMethod* _profiled_method;
a61af66fc99e Initial load
duke
parents:
diff changeset
1732 int _profiled_bci; // Canonicalizer may alter bci of If node
a61af66fc99e Initial load
duke
parents:
diff changeset
1733 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1734 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1735 // unordered_is_true is valid for float/double compares only
a61af66fc99e Initial load
duke
parents:
diff changeset
1736 If(Value x, Condition cond, bool unordered_is_true, Value y, BlockBegin* tsux, BlockBegin* fsux, ValueStack* state_before, bool is_safepoint)
a61af66fc99e Initial load
duke
parents:
diff changeset
1737 : BlockEnd(illegalType, state_before, is_safepoint)
a61af66fc99e Initial load
duke
parents:
diff changeset
1738 , _x(x)
a61af66fc99e Initial load
duke
parents:
diff changeset
1739 , _cond(cond)
a61af66fc99e Initial load
duke
parents:
diff changeset
1740 , _y(y)
a61af66fc99e Initial load
duke
parents:
diff changeset
1741 , _profiled_method(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1742 , _profiled_bci(0)
a61af66fc99e Initial load
duke
parents:
diff changeset
1743 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1744 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1745 set_flag(UnorderedIsTrueFlag, unordered_is_true);
a61af66fc99e Initial load
duke
parents:
diff changeset
1746 assert(x->type()->tag() == y->type()->tag(), "types must match");
a61af66fc99e Initial load
duke
parents:
diff changeset
1747 BlockList* s = new BlockList(2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1748 s->append(tsux);
a61af66fc99e Initial load
duke
parents:
diff changeset
1749 s->append(fsux);
a61af66fc99e Initial load
duke
parents:
diff changeset
1750 set_sux(s);
a61af66fc99e Initial load
duke
parents:
diff changeset
1751 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1752
a61af66fc99e Initial load
duke
parents:
diff changeset
1753 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1754 Value x() const { return _x; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1755 Condition cond() const { return _cond; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1756 bool unordered_is_true() const { return check_flag(UnorderedIsTrueFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1757 Value y() const { return _y; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1758 BlockBegin* sux_for(bool is_true) const { return sux_at(is_true ? 0 : 1); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1759 BlockBegin* tsux() const { return sux_for(true); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1760 BlockBegin* fsux() const { return sux_for(false); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1761 BlockBegin* usux() const { return sux_for(unordered_is_true()); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1762 bool should_profile() const { return check_flag(ProfileMDOFlag); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1763 ciMethod* profiled_method() const { return _profiled_method; } // set only for profiled branches
a61af66fc99e Initial load
duke
parents:
diff changeset
1764 int profiled_bci() const { return _profiled_bci; } // set only for profiled branches
a61af66fc99e Initial load
duke
parents:
diff changeset
1765
a61af66fc99e Initial load
duke
parents:
diff changeset
1766 // manipulation
a61af66fc99e Initial load
duke
parents:
diff changeset
1767 void swap_operands() {
a61af66fc99e Initial load
duke
parents:
diff changeset
1768 Value t = _x; _x = _y; _y = t;
a61af66fc99e Initial load
duke
parents:
diff changeset
1769 _cond = mirror(_cond);
a61af66fc99e Initial load
duke
parents:
diff changeset
1770 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1771
a61af66fc99e Initial load
duke
parents:
diff changeset
1772 void swap_sux() {
a61af66fc99e Initial load
duke
parents:
diff changeset
1773 assert(number_of_sux() == 2, "wrong number of successors");
a61af66fc99e Initial load
duke
parents:
diff changeset
1774 BlockList* s = sux();
a61af66fc99e Initial load
duke
parents:
diff changeset
1775 BlockBegin* t = s->at(0); s->at_put(0, s->at(1)); s->at_put(1, t);
a61af66fc99e Initial load
duke
parents:
diff changeset
1776 _cond = negate(_cond);
a61af66fc99e Initial load
duke
parents:
diff changeset
1777 set_flag(UnorderedIsTrueFlag, !check_flag(UnorderedIsTrueFlag));
a61af66fc99e Initial load
duke
parents:
diff changeset
1778 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1779
a61af66fc99e Initial load
duke
parents:
diff changeset
1780 void set_should_profile(bool value) { set_flag(ProfileMDOFlag, value); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1781 void set_profiled_method(ciMethod* method) { _profiled_method = method; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1782 void set_profiled_bci(int bci) { _profiled_bci = bci; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1783
a61af66fc99e Initial load
duke
parents:
diff changeset
1784 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1785 virtual void input_values_do(void f(Value*)) { BlockEnd::input_values_do(f); f(&_x); f(&_y); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1786 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1787
a61af66fc99e Initial load
duke
parents:
diff changeset
1788
a61af66fc99e Initial load
duke
parents:
diff changeset
1789 LEAF(IfInstanceOf, BlockEnd)
a61af66fc99e Initial load
duke
parents:
diff changeset
1790 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1791 ciKlass* _klass;
a61af66fc99e Initial load
duke
parents:
diff changeset
1792 Value _obj;
a61af66fc99e Initial load
duke
parents:
diff changeset
1793 bool _test_is_instance; // jump if instance
a61af66fc99e Initial load
duke
parents:
diff changeset
1794 int _instanceof_bci;
a61af66fc99e Initial load
duke
parents:
diff changeset
1795
a61af66fc99e Initial load
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parents:
diff changeset
1796 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1797 IfInstanceOf(ciKlass* klass, Value obj, bool test_is_instance, int instanceof_bci, BlockBegin* tsux, BlockBegin* fsux)
a61af66fc99e Initial load
duke
parents:
diff changeset
1798 : BlockEnd(illegalType, NULL, false) // temporary set to false
a61af66fc99e Initial load
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parents:
diff changeset
1799 , _klass(klass)
a61af66fc99e Initial load
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parents:
diff changeset
1800 , _obj(obj)
a61af66fc99e Initial load
duke
parents:
diff changeset
1801 , _test_is_instance(test_is_instance)
a61af66fc99e Initial load
duke
parents:
diff changeset
1802 , _instanceof_bci(instanceof_bci)
a61af66fc99e Initial load
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parents:
diff changeset
1803 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1804 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1805 assert(instanceof_bci >= 0, "illegal bci");
a61af66fc99e Initial load
duke
parents:
diff changeset
1806 BlockList* s = new BlockList(2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1807 s->append(tsux);
a61af66fc99e Initial load
duke
parents:
diff changeset
1808 s->append(fsux);
a61af66fc99e Initial load
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parents:
diff changeset
1809 set_sux(s);
a61af66fc99e Initial load
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parents:
diff changeset
1810 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1811
a61af66fc99e Initial load
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parents:
diff changeset
1812 // accessors
a61af66fc99e Initial load
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parents:
diff changeset
1813 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1814 // Note 1: If test_is_instance() is true, IfInstanceOf tests if obj *is* an
a61af66fc99e Initial load
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parents:
diff changeset
1815 // instance of klass; otherwise it tests if it is *not* and instance
a61af66fc99e Initial load
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parents:
diff changeset
1816 // of klass.
a61af66fc99e Initial load
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parents:
diff changeset
1817 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1818 // Note 2: IfInstanceOf instructions are created by combining an InstanceOf
a61af66fc99e Initial load
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parents:
diff changeset
1819 // and an If instruction. The IfInstanceOf bci() corresponds to the
a61af66fc99e Initial load
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parents:
diff changeset
1820 // bci that the If would have had; the (this->) instanceof_bci() is
a61af66fc99e Initial load
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parents:
diff changeset
1821 // the bci of the original InstanceOf instruction.
a61af66fc99e Initial load
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parents:
diff changeset
1822 ciKlass* klass() const { return _klass; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1823 Value obj() const { return _obj; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1824 int instanceof_bci() const { return _instanceof_bci; }
a61af66fc99e Initial load
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parents:
diff changeset
1825 bool test_is_instance() const { return _test_is_instance; }
a61af66fc99e Initial load
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parents:
diff changeset
1826 BlockBegin* sux_for(bool is_true) const { return sux_at(is_true ? 0 : 1); }
a61af66fc99e Initial load
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parents:
diff changeset
1827 BlockBegin* tsux() const { return sux_for(true); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1828 BlockBegin* fsux() const { return sux_for(false); }
a61af66fc99e Initial load
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parents:
diff changeset
1829
a61af66fc99e Initial load
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parents:
diff changeset
1830 // manipulation
a61af66fc99e Initial load
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parents:
diff changeset
1831 void swap_sux() {
a61af66fc99e Initial load
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parents:
diff changeset
1832 assert(number_of_sux() == 2, "wrong number of successors");
a61af66fc99e Initial load
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parents:
diff changeset
1833 BlockList* s = sux();
a61af66fc99e Initial load
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parents:
diff changeset
1834 BlockBegin* t = s->at(0); s->at_put(0, s->at(1)); s->at_put(1, t);
a61af66fc99e Initial load
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parents:
diff changeset
1835 _test_is_instance = !_test_is_instance;
a61af66fc99e Initial load
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parents:
diff changeset
1836 }
a61af66fc99e Initial load
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parents:
diff changeset
1837
a61af66fc99e Initial load
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parents:
diff changeset
1838 // generic
a61af66fc99e Initial load
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parents:
diff changeset
1839 virtual void input_values_do(void f(Value*)) { BlockEnd::input_values_do(f); f(&_obj); }
a61af66fc99e Initial load
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parents:
diff changeset
1840 };
a61af66fc99e Initial load
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parents:
diff changeset
1841
a61af66fc99e Initial load
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parents:
diff changeset
1842
a61af66fc99e Initial load
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parents:
diff changeset
1843 BASE(Switch, BlockEnd)
a61af66fc99e Initial load
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parents:
diff changeset
1844 private:
a61af66fc99e Initial load
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parents:
diff changeset
1845 Value _tag;
a61af66fc99e Initial load
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parents:
diff changeset
1846
a61af66fc99e Initial load
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parents:
diff changeset
1847 public:
a61af66fc99e Initial load
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parents:
diff changeset
1848 // creation
a61af66fc99e Initial load
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parents:
diff changeset
1849 Switch(Value tag, BlockList* sux, ValueStack* state_before, bool is_safepoint)
a61af66fc99e Initial load
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parents:
diff changeset
1850 : BlockEnd(illegalType, state_before, is_safepoint)
a61af66fc99e Initial load
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parents:
diff changeset
1851 , _tag(tag) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1852 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1853 set_sux(sux);
a61af66fc99e Initial load
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parents:
diff changeset
1854 }
a61af66fc99e Initial load
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parents:
diff changeset
1855
a61af66fc99e Initial load
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parents:
diff changeset
1856 // accessors
a61af66fc99e Initial load
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parents:
diff changeset
1857 Value tag() const { return _tag; }
a61af66fc99e Initial load
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parents:
diff changeset
1858 int length() const { return number_of_sux() - 1; }
a61af66fc99e Initial load
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parents:
diff changeset
1859
a61af66fc99e Initial load
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parents:
diff changeset
1860 // generic
a61af66fc99e Initial load
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parents:
diff changeset
1861 virtual void input_values_do(void f(Value*)) { BlockEnd::input_values_do(f); f(&_tag); }
a61af66fc99e Initial load
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parents:
diff changeset
1862 };
a61af66fc99e Initial load
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parents:
diff changeset
1863
a61af66fc99e Initial load
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parents:
diff changeset
1864
a61af66fc99e Initial load
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parents:
diff changeset
1865 LEAF(TableSwitch, Switch)
a61af66fc99e Initial load
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parents:
diff changeset
1866 private:
a61af66fc99e Initial load
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parents:
diff changeset
1867 int _lo_key;
a61af66fc99e Initial load
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parents:
diff changeset
1868
a61af66fc99e Initial load
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parents:
diff changeset
1869 public:
a61af66fc99e Initial load
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parents:
diff changeset
1870 // creation
a61af66fc99e Initial load
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parents:
diff changeset
1871 TableSwitch(Value tag, BlockList* sux, int lo_key, ValueStack* state_before, bool is_safepoint)
a61af66fc99e Initial load
duke
parents:
diff changeset
1872 : Switch(tag, sux, state_before, is_safepoint)
a61af66fc99e Initial load
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parents:
diff changeset
1873 , _lo_key(lo_key) {}
a61af66fc99e Initial load
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parents:
diff changeset
1874
a61af66fc99e Initial load
duke
parents:
diff changeset
1875 // accessors
a61af66fc99e Initial load
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parents:
diff changeset
1876 int lo_key() const { return _lo_key; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1877 int hi_key() const { return _lo_key + length() - 1; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1878 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1879
a61af66fc99e Initial load
duke
parents:
diff changeset
1880
a61af66fc99e Initial load
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parents:
diff changeset
1881 LEAF(LookupSwitch, Switch)
a61af66fc99e Initial load
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parents:
diff changeset
1882 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1883 intArray* _keys;
a61af66fc99e Initial load
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parents:
diff changeset
1884
a61af66fc99e Initial load
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parents:
diff changeset
1885 public:
a61af66fc99e Initial load
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parents:
diff changeset
1886 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1887 LookupSwitch(Value tag, BlockList* sux, intArray* keys, ValueStack* state_before, bool is_safepoint)
a61af66fc99e Initial load
duke
parents:
diff changeset
1888 : Switch(tag, sux, state_before, is_safepoint)
a61af66fc99e Initial load
duke
parents:
diff changeset
1889 , _keys(keys) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1890 assert(keys != NULL, "keys must exist");
a61af66fc99e Initial load
duke
parents:
diff changeset
1891 assert(keys->length() == length(), "sux & keys have incompatible lengths");
a61af66fc99e Initial load
duke
parents:
diff changeset
1892 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1893
a61af66fc99e Initial load
duke
parents:
diff changeset
1894 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1895 int key_at(int i) const { return _keys->at(i); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1896 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1897
a61af66fc99e Initial load
duke
parents:
diff changeset
1898
a61af66fc99e Initial load
duke
parents:
diff changeset
1899 LEAF(Return, BlockEnd)
a61af66fc99e Initial load
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parents:
diff changeset
1900 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1901 Value _result;
a61af66fc99e Initial load
duke
parents:
diff changeset
1902
a61af66fc99e Initial load
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parents:
diff changeset
1903 public:
a61af66fc99e Initial load
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parents:
diff changeset
1904 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1905 Return(Value result) :
a61af66fc99e Initial load
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parents:
diff changeset
1906 BlockEnd(result == NULL ? voidType : result->type()->base(), NULL, true),
a61af66fc99e Initial load
duke
parents:
diff changeset
1907 _result(result) {}
a61af66fc99e Initial load
duke
parents:
diff changeset
1908
a61af66fc99e Initial load
duke
parents:
diff changeset
1909 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1910 Value result() const { return _result; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1911 bool has_result() const { return result() != NULL; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1912
a61af66fc99e Initial load
duke
parents:
diff changeset
1913 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1914 virtual void input_values_do(void f(Value*)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1915 BlockEnd::input_values_do(f);
a61af66fc99e Initial load
duke
parents:
diff changeset
1916 if (has_result()) f(&_result);
a61af66fc99e Initial load
duke
parents:
diff changeset
1917 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1918 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1919
a61af66fc99e Initial load
duke
parents:
diff changeset
1920
a61af66fc99e Initial load
duke
parents:
diff changeset
1921 LEAF(Throw, BlockEnd)
a61af66fc99e Initial load
duke
parents:
diff changeset
1922 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1923 Value _exception;
a61af66fc99e Initial load
duke
parents:
diff changeset
1924
a61af66fc99e Initial load
duke
parents:
diff changeset
1925 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1926 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1927 Throw(Value exception, ValueStack* state_before) : BlockEnd(illegalType, state_before, true), _exception(exception) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1928 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
1929 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1930
a61af66fc99e Initial load
duke
parents:
diff changeset
1931 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1932 Value exception() const { return _exception; }
a61af66fc99e Initial load
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parents:
diff changeset
1933
a61af66fc99e Initial load
duke
parents:
diff changeset
1934 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1935 virtual bool can_trap() const { return true; }
a61af66fc99e Initial load
duke
parents:
diff changeset
1936 virtual void input_values_do(void f(Value*)) { BlockEnd::input_values_do(f); f(&_exception); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1937 virtual void state_values_do(void f(Value*));
a61af66fc99e Initial load
duke
parents:
diff changeset
1938 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1939
a61af66fc99e Initial load
duke
parents:
diff changeset
1940
a61af66fc99e Initial load
duke
parents:
diff changeset
1941 LEAF(Base, BlockEnd)
a61af66fc99e Initial load
duke
parents:
diff changeset
1942 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1943 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1944 Base(BlockBegin* std_entry, BlockBegin* osr_entry) : BlockEnd(illegalType, NULL, false) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1945 assert(std_entry->is_set(BlockBegin::std_entry_flag), "std entry must be flagged");
a61af66fc99e Initial load
duke
parents:
diff changeset
1946 assert(osr_entry == NULL || osr_entry->is_set(BlockBegin::osr_entry_flag), "osr entry must be flagged");
a61af66fc99e Initial load
duke
parents:
diff changeset
1947 BlockList* s = new BlockList(2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1948 if (osr_entry != NULL) s->append(osr_entry);
a61af66fc99e Initial load
duke
parents:
diff changeset
1949 s->append(std_entry); // must be default sux!
a61af66fc99e Initial load
duke
parents:
diff changeset
1950 set_sux(s);
a61af66fc99e Initial load
duke
parents:
diff changeset
1951 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1952
a61af66fc99e Initial load
duke
parents:
diff changeset
1953 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
1954 BlockBegin* std_entry() const { return default_sux(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1955 BlockBegin* osr_entry() const { return number_of_sux() < 2 ? NULL : sux_at(0); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1956 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1957
a61af66fc99e Initial load
duke
parents:
diff changeset
1958
a61af66fc99e Initial load
duke
parents:
diff changeset
1959 LEAF(OsrEntry, Instruction)
a61af66fc99e Initial load
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parents:
diff changeset
1960 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1961 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1962 #ifdef _LP64
a61af66fc99e Initial load
duke
parents:
diff changeset
1963 OsrEntry() : Instruction(longType, false) { pin(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1964 #else
a61af66fc99e Initial load
duke
parents:
diff changeset
1965 OsrEntry() : Instruction(intType, false) { pin(); }
a61af66fc99e Initial load
duke
parents:
diff changeset
1966 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1967
a61af66fc99e Initial load
duke
parents:
diff changeset
1968 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1969 virtual void input_values_do(void f(Value*)) { }
a61af66fc99e Initial load
duke
parents:
diff changeset
1970 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1971
a61af66fc99e Initial load
duke
parents:
diff changeset
1972
a61af66fc99e Initial load
duke
parents:
diff changeset
1973 // Models the incoming exception at a catch site
a61af66fc99e Initial load
duke
parents:
diff changeset
1974 LEAF(ExceptionObject, Instruction)
a61af66fc99e Initial load
duke
parents:
diff changeset
1975 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1976 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
1977 ExceptionObject() : Instruction(objectType, false) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1978 pin();
a61af66fc99e Initial load
duke
parents:
diff changeset
1979 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1980
a61af66fc99e Initial load
duke
parents:
diff changeset
1981 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
1982 virtual void input_values_do(void f(Value*)) { }
a61af66fc99e Initial load
duke
parents:
diff changeset
1983 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1984
a61af66fc99e Initial load
duke
parents:
diff changeset
1985
a61af66fc99e Initial load
duke
parents:
diff changeset
1986 // Models needed rounding for floating-point values on Intel.
a61af66fc99e Initial load
duke
parents:
diff changeset
1987 // Currently only used to represent rounding of double-precision
a61af66fc99e Initial load
duke
parents:
diff changeset
1988 // values stored into local variables, but could be used to model
a61af66fc99e Initial load
duke
parents:
diff changeset
1989 // intermediate rounding of single-precision values as well.
a61af66fc99e Initial load
duke
parents:
diff changeset
1990 LEAF(RoundFP, Instruction)
a61af66fc99e Initial load
duke
parents:
diff changeset
1991 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
1992 Value _input; // floating-point value to be rounded
a61af66fc99e Initial load
duke
parents:
diff changeset
1993
a61af66fc99e Initial load
duke
parents:
diff changeset
1994 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1995 RoundFP(Value input)
a61af66fc99e Initial load
duke
parents:
diff changeset
1996 : Instruction(input->type()) // Note: should not be used for constants
a61af66fc99e Initial load
duke
parents:
diff changeset
1997 , _input(input)
a61af66fc99e Initial load
duke
parents:
diff changeset
1998 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1999 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
2000 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2001
a61af66fc99e Initial load
duke
parents:
diff changeset
2002 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
2003 Value input() const { return _input; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2004
a61af66fc99e Initial load
duke
parents:
diff changeset
2005 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
2006 virtual void input_values_do(void f(Value*)) { f(&_input); }
a61af66fc99e Initial load
duke
parents:
diff changeset
2007 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2008
a61af66fc99e Initial load
duke
parents:
diff changeset
2009
a61af66fc99e Initial load
duke
parents:
diff changeset
2010 BASE(UnsafeOp, Instruction)
a61af66fc99e Initial load
duke
parents:
diff changeset
2011 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
2012 BasicType _basic_type; // ValueType can not express byte-sized integers
a61af66fc99e Initial load
duke
parents:
diff changeset
2013
a61af66fc99e Initial load
duke
parents:
diff changeset
2014 protected:
a61af66fc99e Initial load
duke
parents:
diff changeset
2015 // creation
a61af66fc99e Initial load
duke
parents:
diff changeset
2016 UnsafeOp(BasicType basic_type, bool is_put)
a61af66fc99e Initial load
duke
parents:
diff changeset
2017 : Instruction(is_put ? voidType : as_ValueType(basic_type))
a61af66fc99e Initial load
duke
parents:
diff changeset
2018 , _basic_type(basic_type)
a61af66fc99e Initial load
duke
parents:
diff changeset
2019 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2020 //Note: Unsafe ops are not not guaranteed to throw NPE.
a61af66fc99e Initial load
duke
parents:
diff changeset
2021 // Convservatively, Unsafe operations must be pinned though we could be
a61af66fc99e Initial load
duke
parents:
diff changeset
2022 // looser about this if we wanted to..
a61af66fc99e Initial load
duke
parents:
diff changeset
2023 pin();
a61af66fc99e Initial load
duke
parents:
diff changeset
2024 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2025
a61af66fc99e Initial load
duke
parents:
diff changeset
2026 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2027 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
2028 BasicType basic_type() { return _basic_type; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2029
a61af66fc99e Initial load
duke
parents:
diff changeset
2030 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
2031 virtual void input_values_do(void f(Value*)) { }
a61af66fc99e Initial load
duke
parents:
diff changeset
2032 virtual void other_values_do(void f(Value*)) { }
a61af66fc99e Initial load
duke
parents:
diff changeset
2033 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2034
a61af66fc99e Initial load
duke
parents:
diff changeset
2035
a61af66fc99e Initial load
duke
parents:
diff changeset
2036 BASE(UnsafeRawOp, UnsafeOp)
a61af66fc99e Initial load
duke
parents:
diff changeset
2037 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
2038 Value _base; // Base address (a Java long)
a61af66fc99e Initial load
duke
parents:
diff changeset
2039 Value _index; // Index if computed by optimizer; initialized to NULL
a61af66fc99e Initial load
duke
parents:
diff changeset
2040 int _log2_scale; // Scale factor: 0, 1, 2, or 3.
a61af66fc99e Initial load
duke
parents:
diff changeset
2041 // Indicates log2 of number of bytes (1, 2, 4, or 8)
a61af66fc99e Initial load
duke
parents:
diff changeset
2042 // to scale index by.
a61af66fc99e Initial load
duke
parents:
diff changeset
2043
a61af66fc99e Initial load
duke
parents:
diff changeset
2044 protected:
a61af66fc99e Initial load
duke
parents:
diff changeset
2045 UnsafeRawOp(BasicType basic_type, Value addr, bool is_put)
a61af66fc99e Initial load
duke
parents:
diff changeset
2046 : UnsafeOp(basic_type, is_put)
a61af66fc99e Initial load
duke
parents:
diff changeset
2047 , _base(addr)
a61af66fc99e Initial load
duke
parents:
diff changeset
2048 , _index(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
2049 , _log2_scale(0)
a61af66fc99e Initial load
duke
parents:
diff changeset
2050 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2051 // Can not use ASSERT_VALUES because index may be NULL
a61af66fc99e Initial load
duke
parents:
diff changeset
2052 assert(addr != NULL && addr->type()->is_long(), "just checking");
a61af66fc99e Initial load
duke
parents:
diff changeset
2053 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2054
a61af66fc99e Initial load
duke
parents:
diff changeset
2055 UnsafeRawOp(BasicType basic_type, Value base, Value index, int log2_scale, bool is_put)
a61af66fc99e Initial load
duke
parents:
diff changeset
2056 : UnsafeOp(basic_type, is_put)
a61af66fc99e Initial load
duke
parents:
diff changeset
2057 , _base(base)
a61af66fc99e Initial load
duke
parents:
diff changeset
2058 , _index(index)
a61af66fc99e Initial load
duke
parents:
diff changeset
2059 , _log2_scale(log2_scale)
a61af66fc99e Initial load
duke
parents:
diff changeset
2060 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2061 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2062
a61af66fc99e Initial load
duke
parents:
diff changeset
2063 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2064 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
2065 Value base() { return _base; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2066 Value index() { return _index; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2067 bool has_index() { return (_index != NULL); }
a61af66fc99e Initial load
duke
parents:
diff changeset
2068 int log2_scale() { return _log2_scale; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2069
a61af66fc99e Initial load
duke
parents:
diff changeset
2070 // setters
a61af66fc99e Initial load
duke
parents:
diff changeset
2071 void set_base (Value base) { _base = base; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2072 void set_index(Value index) { _index = index; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2073 void set_log2_scale(int log2_scale) { _log2_scale = log2_scale; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2074
a61af66fc99e Initial load
duke
parents:
diff changeset
2075 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
2076 virtual void input_values_do(void f(Value*)) { UnsafeOp::input_values_do(f);
a61af66fc99e Initial load
duke
parents:
diff changeset
2077 f(&_base);
a61af66fc99e Initial load
duke
parents:
diff changeset
2078 if (has_index()) f(&_index); }
a61af66fc99e Initial load
duke
parents:
diff changeset
2079 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2080
a61af66fc99e Initial load
duke
parents:
diff changeset
2081
a61af66fc99e Initial load
duke
parents:
diff changeset
2082 LEAF(UnsafeGetRaw, UnsafeRawOp)
a61af66fc99e Initial load
duke
parents:
diff changeset
2083 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
2084 bool _may_be_unaligned; // For OSREntry
a61af66fc99e Initial load
duke
parents:
diff changeset
2085
a61af66fc99e Initial load
duke
parents:
diff changeset
2086 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2087 UnsafeGetRaw(BasicType basic_type, Value addr, bool may_be_unaligned)
a61af66fc99e Initial load
duke
parents:
diff changeset
2088 : UnsafeRawOp(basic_type, addr, false) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2089 _may_be_unaligned = may_be_unaligned;
a61af66fc99e Initial load
duke
parents:
diff changeset
2090 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2091
a61af66fc99e Initial load
duke
parents:
diff changeset
2092 UnsafeGetRaw(BasicType basic_type, Value base, Value index, int log2_scale, bool may_be_unaligned)
a61af66fc99e Initial load
duke
parents:
diff changeset
2093 : UnsafeRawOp(basic_type, base, index, log2_scale, false) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2094 _may_be_unaligned = may_be_unaligned;
a61af66fc99e Initial load
duke
parents:
diff changeset
2095 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2096
a61af66fc99e Initial load
duke
parents:
diff changeset
2097 bool may_be_unaligned() { return _may_be_unaligned; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2098 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2099
a61af66fc99e Initial load
duke
parents:
diff changeset
2100
a61af66fc99e Initial load
duke
parents:
diff changeset
2101 LEAF(UnsafePutRaw, UnsafeRawOp)
a61af66fc99e Initial load
duke
parents:
diff changeset
2102 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
2103 Value _value; // Value to be stored
a61af66fc99e Initial load
duke
parents:
diff changeset
2104
a61af66fc99e Initial load
duke
parents:
diff changeset
2105 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2106 UnsafePutRaw(BasicType basic_type, Value addr, Value value)
a61af66fc99e Initial load
duke
parents:
diff changeset
2107 : UnsafeRawOp(basic_type, addr, true)
a61af66fc99e Initial load
duke
parents:
diff changeset
2108 , _value(value)
a61af66fc99e Initial load
duke
parents:
diff changeset
2109 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2110 assert(value != NULL, "just checking");
a61af66fc99e Initial load
duke
parents:
diff changeset
2111 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
2112 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2113
a61af66fc99e Initial load
duke
parents:
diff changeset
2114 UnsafePutRaw(BasicType basic_type, Value base, Value index, int log2_scale, Value value)
a61af66fc99e Initial load
duke
parents:
diff changeset
2115 : UnsafeRawOp(basic_type, base, index, log2_scale, true)
a61af66fc99e Initial load
duke
parents:
diff changeset
2116 , _value(value)
a61af66fc99e Initial load
duke
parents:
diff changeset
2117 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2118 assert(value != NULL, "just checking");
a61af66fc99e Initial load
duke
parents:
diff changeset
2119 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
2120 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2121
a61af66fc99e Initial load
duke
parents:
diff changeset
2122 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
2123 Value value() { return _value; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2124
a61af66fc99e Initial load
duke
parents:
diff changeset
2125 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
2126 virtual void input_values_do(void f(Value*)) { UnsafeRawOp::input_values_do(f);
a61af66fc99e Initial load
duke
parents:
diff changeset
2127 f(&_value); }
a61af66fc99e Initial load
duke
parents:
diff changeset
2128 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2129
a61af66fc99e Initial load
duke
parents:
diff changeset
2130
a61af66fc99e Initial load
duke
parents:
diff changeset
2131 BASE(UnsafeObjectOp, UnsafeOp)
a61af66fc99e Initial load
duke
parents:
diff changeset
2132 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
2133 Value _object; // Object to be fetched from or mutated
a61af66fc99e Initial load
duke
parents:
diff changeset
2134 Value _offset; // Offset within object
a61af66fc99e Initial load
duke
parents:
diff changeset
2135 bool _is_volatile; // true if volatile - dl/JSR166
a61af66fc99e Initial load
duke
parents:
diff changeset
2136 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2137 UnsafeObjectOp(BasicType basic_type, Value object, Value offset, bool is_put, bool is_volatile)
a61af66fc99e Initial load
duke
parents:
diff changeset
2138 : UnsafeOp(basic_type, is_put), _object(object), _offset(offset), _is_volatile(is_volatile)
a61af66fc99e Initial load
duke
parents:
diff changeset
2139 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2140 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2141
a61af66fc99e Initial load
duke
parents:
diff changeset
2142 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
2143 Value object() { return _object; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2144 Value offset() { return _offset; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2145 bool is_volatile() { return _is_volatile; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2146 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
2147 virtual void input_values_do(void f(Value*)) { UnsafeOp::input_values_do(f);
a61af66fc99e Initial load
duke
parents:
diff changeset
2148 f(&_object);
a61af66fc99e Initial load
duke
parents:
diff changeset
2149 f(&_offset); }
a61af66fc99e Initial load
duke
parents:
diff changeset
2150 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2151
a61af66fc99e Initial load
duke
parents:
diff changeset
2152
a61af66fc99e Initial load
duke
parents:
diff changeset
2153 LEAF(UnsafeGetObject, UnsafeObjectOp)
a61af66fc99e Initial load
duke
parents:
diff changeset
2154 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2155 UnsafeGetObject(BasicType basic_type, Value object, Value offset, bool is_volatile)
a61af66fc99e Initial load
duke
parents:
diff changeset
2156 : UnsafeObjectOp(basic_type, object, offset, false, is_volatile)
a61af66fc99e Initial load
duke
parents:
diff changeset
2157 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2158 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
2159 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2160 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2161
a61af66fc99e Initial load
duke
parents:
diff changeset
2162
a61af66fc99e Initial load
duke
parents:
diff changeset
2163 LEAF(UnsafePutObject, UnsafeObjectOp)
a61af66fc99e Initial load
duke
parents:
diff changeset
2164 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
2165 Value _value; // Value to be stored
a61af66fc99e Initial load
duke
parents:
diff changeset
2166 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2167 UnsafePutObject(BasicType basic_type, Value object, Value offset, Value value, bool is_volatile)
a61af66fc99e Initial load
duke
parents:
diff changeset
2168 : UnsafeObjectOp(basic_type, object, offset, true, is_volatile)
a61af66fc99e Initial load
duke
parents:
diff changeset
2169 , _value(value)
a61af66fc99e Initial load
duke
parents:
diff changeset
2170 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2171 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
2172 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2173
a61af66fc99e Initial load
duke
parents:
diff changeset
2174 // accessors
a61af66fc99e Initial load
duke
parents:
diff changeset
2175 Value value() { return _value; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2176
a61af66fc99e Initial load
duke
parents:
diff changeset
2177 // generic
a61af66fc99e Initial load
duke
parents:
diff changeset
2178 virtual void input_values_do(void f(Value*)) { UnsafeObjectOp::input_values_do(f);
a61af66fc99e Initial load
duke
parents:
diff changeset
2179 f(&_value); }
a61af66fc99e Initial load
duke
parents:
diff changeset
2180 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2181
a61af66fc99e Initial load
duke
parents:
diff changeset
2182
a61af66fc99e Initial load
duke
parents:
diff changeset
2183 BASE(UnsafePrefetch, UnsafeObjectOp)
a61af66fc99e Initial load
duke
parents:
diff changeset
2184 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2185 UnsafePrefetch(Value object, Value offset)
a61af66fc99e Initial load
duke
parents:
diff changeset
2186 : UnsafeObjectOp(T_VOID, object, offset, false, false)
a61af66fc99e Initial load
duke
parents:
diff changeset
2187 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2188 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2189 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2190
a61af66fc99e Initial load
duke
parents:
diff changeset
2191
a61af66fc99e Initial load
duke
parents:
diff changeset
2192 LEAF(UnsafePrefetchRead, UnsafePrefetch)
a61af66fc99e Initial load
duke
parents:
diff changeset
2193 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2194 UnsafePrefetchRead(Value object, Value offset)
a61af66fc99e Initial load
duke
parents:
diff changeset
2195 : UnsafePrefetch(object, offset)
a61af66fc99e Initial load
duke
parents:
diff changeset
2196 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2197 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
2198 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2199 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2200
a61af66fc99e Initial load
duke
parents:
diff changeset
2201
a61af66fc99e Initial load
duke
parents:
diff changeset
2202 LEAF(UnsafePrefetchWrite, UnsafePrefetch)
a61af66fc99e Initial load
duke
parents:
diff changeset
2203 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2204 UnsafePrefetchWrite(Value object, Value offset)
a61af66fc99e Initial load
duke
parents:
diff changeset
2205 : UnsafePrefetch(object, offset)
a61af66fc99e Initial load
duke
parents:
diff changeset
2206 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2207 ASSERT_VALUES
a61af66fc99e Initial load
duke
parents:
diff changeset
2208 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2209 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2210
a61af66fc99e Initial load
duke
parents:
diff changeset
2211
a61af66fc99e Initial load
duke
parents:
diff changeset
2212 LEAF(ProfileCall, Instruction)
a61af66fc99e Initial load
duke
parents:
diff changeset
2213 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
2214 ciMethod* _method;
a61af66fc99e Initial load
duke
parents:
diff changeset
2215 int _bci_of_invoke;
a61af66fc99e Initial load
duke
parents:
diff changeset
2216 Value _recv;
a61af66fc99e Initial load
duke
parents:
diff changeset
2217 ciKlass* _known_holder;
a61af66fc99e Initial load
duke
parents:
diff changeset
2218
a61af66fc99e Initial load
duke
parents:
diff changeset
2219 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2220 ProfileCall(ciMethod* method, int bci, Value recv, ciKlass* known_holder)
a61af66fc99e Initial load
duke
parents:
diff changeset
2221 : Instruction(voidType)
a61af66fc99e Initial load
duke
parents:
diff changeset
2222 , _method(method)
a61af66fc99e Initial load
duke
parents:
diff changeset
2223 , _bci_of_invoke(bci)
a61af66fc99e Initial load
duke
parents:
diff changeset
2224 , _recv(recv)
a61af66fc99e Initial load
duke
parents:
diff changeset
2225 , _known_holder(known_holder)
a61af66fc99e Initial load
duke
parents:
diff changeset
2226 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2227 // The ProfileCall has side-effects and must occur precisely where located
a61af66fc99e Initial load
duke
parents:
diff changeset
2228 pin();
a61af66fc99e Initial load
duke
parents:
diff changeset
2229 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2230
a61af66fc99e Initial load
duke
parents:
diff changeset
2231 ciMethod* method() { return _method; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2232 int bci_of_invoke() { return _bci_of_invoke; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2233 Value recv() { return _recv; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2234 ciKlass* known_holder() { return _known_holder; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2235
a61af66fc99e Initial load
duke
parents:
diff changeset
2236 virtual void input_values_do(void f(Value*)) { if (_recv != NULL) f(&_recv); }
a61af66fc99e Initial load
duke
parents:
diff changeset
2237 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2238
a61af66fc99e Initial load
duke
parents:
diff changeset
2239
a61af66fc99e Initial load
duke
parents:
diff changeset
2240 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2241 // Simple node representing a counter update generally used for updating MDOs
a61af66fc99e Initial load
duke
parents:
diff changeset
2242 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2243 LEAF(ProfileCounter, Instruction)
a61af66fc99e Initial load
duke
parents:
diff changeset
2244 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
2245 Value _mdo;
a61af66fc99e Initial load
duke
parents:
diff changeset
2246 int _offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2247 int _increment;
a61af66fc99e Initial load
duke
parents:
diff changeset
2248
a61af66fc99e Initial load
duke
parents:
diff changeset
2249 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2250 ProfileCounter(Value mdo, int offset, int increment = 1)
a61af66fc99e Initial load
duke
parents:
diff changeset
2251 : Instruction(voidType)
a61af66fc99e Initial load
duke
parents:
diff changeset
2252 , _mdo(mdo)
a61af66fc99e Initial load
duke
parents:
diff changeset
2253 , _offset(offset)
a61af66fc99e Initial load
duke
parents:
diff changeset
2254 , _increment(increment)
a61af66fc99e Initial load
duke
parents:
diff changeset
2255 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2256 // The ProfileCounter has side-effects and must occur precisely where located
a61af66fc99e Initial load
duke
parents:
diff changeset
2257 pin();
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2258 }
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2259
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2260 Value mdo() { return _mdo; }
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2261 int offset() { return _offset; }
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2262 int increment() { return _increment; }
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2263
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2264 virtual void input_values_do(void f(Value*)) { f(&_mdo); }
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2265 };
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2266
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2267
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2268 class BlockPair: public CompilationResourceObj {
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2269 private:
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2270 BlockBegin* _from;
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2271 BlockBegin* _to;
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2272 public:
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2273 BlockPair(BlockBegin* from, BlockBegin* to): _from(from), _to(to) {}
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2274 BlockBegin* from() const { return _from; }
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2275 BlockBegin* to() const { return _to; }
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2276 bool is_same(BlockBegin* from, BlockBegin* to) const { return _from == from && _to == to; }
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2277 bool is_same(BlockPair* p) const { return _from == p->from() && _to == p->to(); }
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2278 void set_to(BlockBegin* b) { _to = b; }
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2279 void set_from(BlockBegin* b) { _from = b; }
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2280 };
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2281
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2282
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2283 define_array(BlockPairArray, BlockPair*)
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2284 define_stack(BlockPairList, BlockPairArray)
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2285
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2286
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2287 inline int BlockBegin::number_of_sux() const { assert(_end == NULL || _end->number_of_sux() == _successors.length(), "mismatch"); return _successors.length(); }
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2288 inline BlockBegin* BlockBegin::sux_at(int i) const { assert(_end == NULL || _end->sux_at(i) == _successors.at(i), "mismatch"); return _successors.at(i); }
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2289 inline void BlockBegin::add_successor(BlockBegin* sux) { assert(_end == NULL, "Would create mismatch with successors of BlockEnd"); _successors.append(sux); }
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2290
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2291 #undef ASSERT_VALUES