annotate src/share/vm/interpreter/interpreter.cpp @ 6948:e522a00b91aa

Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
author Doug Simon <doug.simon@oracle.com>
date Mon, 12 Nov 2012 23:14:12 +0100
parents 957c266d8bc5 a3e2f723f2a5
children 7d815d842ee0
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1 /*
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "asm/assembler.hpp"
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27 #include "interpreter/bytecodeHistogram.hpp"
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28 #include "interpreter/bytecodeInterpreter.hpp"
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29 #include "interpreter/interpreter.hpp"
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30 #include "interpreter/interpreterRuntime.hpp"
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31 #include "interpreter/templateTable.hpp"
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32 #include "memory/allocation.inline.hpp"
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33 #include "memory/resourceArea.hpp"
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34 #include "oops/arrayOop.hpp"
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35 #include "oops/methodData.hpp"
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36 #include "oops/method.hpp"
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37 #include "oops/oop.inline.hpp"
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38 #include "prims/forte.hpp"
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39 #include "prims/jvmtiExport.hpp"
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40 #include "prims/methodHandles.hpp"
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41 #include "runtime/handles.inline.hpp"
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42 #include "runtime/sharedRuntime.hpp"
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43 #include "runtime/stubRoutines.hpp"
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44 #include "runtime/timer.hpp"
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45
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46 # define __ _masm->
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47
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48
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49 //------------------------------------------------------------------------------------------------------------------------
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50 // Implementation of InterpreterCodelet
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51
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52 void InterpreterCodelet::initialize(const char* description, Bytecodes::Code bytecode) {
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53 _description = description;
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54 _bytecode = bytecode;
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55 }
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56
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57
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58 void InterpreterCodelet::verify() {
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59 }
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60
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61
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62 void InterpreterCodelet::print_on(outputStream* st) const {
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63 ttyLocker ttyl;
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64
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65 if (PrintInterpreter) {
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66 st->cr();
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67 st->print_cr("----------------------------------------------------------------------");
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68 }
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69
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70 if (description() != NULL) st->print("%s ", description());
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71 if (bytecode() >= 0 ) st->print("%d %s ", bytecode(), Bytecodes::name(bytecode()));
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72 st->print_cr("[" INTPTR_FORMAT ", " INTPTR_FORMAT "] %d bytes",
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73 code_begin(), code_end(), code_size());
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74
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75 if (PrintInterpreter) {
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76 st->cr();
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77 Disassembler::decode(code_begin(), code_end(), st, DEBUG_ONLY(_comments) NOT_DEBUG(CodeComments()));
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78 }
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79 }
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80
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81
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82 //------------------------------------------------------------------------------------------------------------------------
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83 // Implementation of platform independent aspects of Interpreter
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84
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85 void AbstractInterpreter::initialize() {
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86 if (_code != NULL) return;
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87
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88 // make sure 'imported' classes are initialized
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89 if (CountBytecodes || TraceBytecodes || StopInterpreterAt) BytecodeCounter::reset();
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90 if (PrintBytecodeHistogram) BytecodeHistogram::reset();
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91 if (PrintBytecodePairHistogram) BytecodePairHistogram::reset();
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92
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93 InvocationCounter::reinitialize(DelayCompilationDuringStartup);
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94
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95 }
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96
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97 void AbstractInterpreter::print() {
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98 tty->cr();
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99 tty->print_cr("----------------------------------------------------------------------");
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100 tty->print_cr("Interpreter");
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101 tty->cr();
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102 tty->print_cr("code size = %6dK bytes", (int)_code->used_space()/1024);
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103 tty->print_cr("total space = %6dK bytes", (int)_code->total_space()/1024);
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104 tty->print_cr("wasted space = %6dK bytes", (int)_code->available_space()/1024);
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105 tty->cr();
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106 tty->print_cr("# of codelets = %6d" , _code->number_of_stubs());
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107 tty->print_cr("avg codelet size = %6d bytes", _code->used_space() / _code->number_of_stubs());
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108 tty->cr();
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109 _code->print();
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110 tty->print_cr("----------------------------------------------------------------------");
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111 tty->cr();
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112 }
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113
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114
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115 void interpreter_init() {
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116 Interpreter::initialize();
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117 #ifndef PRODUCT
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118 if (TraceBytecodes) BytecodeTracer::set_closure(BytecodeTracer::std_closure());
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119 #endif // PRODUCT
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120 // need to hit every safepoint in order to call zapping routine
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121 // register the interpreter
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122 Forte::register_stub(
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123 "Interpreter",
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124 AbstractInterpreter::code()->code_start(),
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125 AbstractInterpreter::code()->code_end()
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126 );
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127
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128 // notify JVMTI profiler
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129 if (JvmtiExport::should_post_dynamic_code_generated()) {
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130 JvmtiExport::post_dynamic_code_generated("Interpreter",
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131 AbstractInterpreter::code()->code_start(),
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132 AbstractInterpreter::code()->code_end());
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133 }
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134 }
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135
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136 //------------------------------------------------------------------------------------------------------------------------
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137 // Implementation of interpreter
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138
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139 StubQueue* AbstractInterpreter::_code = NULL;
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140 bool AbstractInterpreter::_notice_safepoints = false;
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141 address AbstractInterpreter::_rethrow_exception_entry = NULL;
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142
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143 address AbstractInterpreter::_native_entry_begin = NULL;
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144 address AbstractInterpreter::_native_entry_end = NULL;
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145 address AbstractInterpreter::_slow_signature_handler;
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146 address AbstractInterpreter::_entry_table [AbstractInterpreter::number_of_method_entries];
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147 address AbstractInterpreter::_native_abi_to_tosca [AbstractInterpreter::number_of_result_handlers];
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148
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149 //------------------------------------------------------------------------------------------------------------------------
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150 // Generation of complete interpreter
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151
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152 AbstractInterpreterGenerator::AbstractInterpreterGenerator(StubQueue* _code) {
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153 _masm = NULL;
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154 }
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155
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156
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157 static const BasicType types[Interpreter::number_of_result_handlers] = {
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158 T_BOOLEAN,
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159 T_CHAR ,
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160 T_BYTE ,
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161 T_SHORT ,
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162 T_INT ,
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163 T_LONG ,
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164 T_VOID ,
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165 T_FLOAT ,
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166 T_DOUBLE ,
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167 T_OBJECT
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168 };
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169
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170 void AbstractInterpreterGenerator::generate_all() {
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171
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172
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173 { CodeletMark cm(_masm, "slow signature handler");
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174 Interpreter::_slow_signature_handler = generate_slow_signature_handler();
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175 }
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176
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177 }
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178
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179 //------------------------------------------------------------------------------------------------------------------------
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180 // Entry points
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181
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182 AbstractInterpreter::MethodKind AbstractInterpreter::method_kind(methodHandle m) {
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183 // Abstract method?
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184 if (m->is_abstract()) return abstract;
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185
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186 // Method handle primitive?
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187 if (m->is_method_handle_intrinsic()) {
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188 vmIntrinsics::ID id = m->intrinsic_id();
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189 assert(MethodHandles::is_signature_polymorphic(id), "must match an intrinsic");
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190 MethodKind kind = (MethodKind)( method_handle_invoke_FIRST +
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191 ((int)id - vmIntrinsics::FIRST_MH_SIG_POLY) );
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192 assert(kind <= method_handle_invoke_LAST, "parallel enum ranges");
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193 return kind;
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194 }
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195
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196 // Native method?
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197 // Note: This test must come _before_ the test for intrinsic
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198 // methods. See also comments below.
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199 if (m->is_native()) {
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200 assert(!m->is_method_handle_intrinsic(), "overlapping bits here, watch out");
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201 return m->is_synchronized() ? native_synchronized : native;
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202 }
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203
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204 // Synchronized?
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205 if (m->is_synchronized()) {
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206 return zerolocals_synchronized;
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207 }
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208
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209 if (RegisterFinalizersAtInit && m->code_size() == 1 &&
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210 m->intrinsic_id() == vmIntrinsics::_Object_init) {
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211 // We need to execute the special return bytecode to check for
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212 // finalizer registration so create a normal frame.
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213 return zerolocals;
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214 }
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215
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216 // Empty method?
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217 if (m->is_empty_method()) {
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218 return empty;
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219 }
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220
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221 // Special intrinsic method?
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222 // Note: This test must come _after_ the test for native methods,
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223 // otherwise we will run into problems with JDK 1.2, see also
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224 // AbstractInterpreterGenerator::generate_method_entry() for
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225 // for details.
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226 switch (m->intrinsic_id()) {
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227 case vmIntrinsics::_dsin : return java_lang_math_sin ;
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228 case vmIntrinsics::_dcos : return java_lang_math_cos ;
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229 case vmIntrinsics::_dtan : return java_lang_math_tan ;
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230 case vmIntrinsics::_dabs : return java_lang_math_abs ;
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231 case vmIntrinsics::_dsqrt : return java_lang_math_sqrt ;
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232 case vmIntrinsics::_dlog : return java_lang_math_log ;
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233 case vmIntrinsics::_dlog10: return java_lang_math_log10;
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6759698e3140 7133857: exp() and pow() should use the x87 ISA on x86
roland
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234 case vmIntrinsics::_dpow : return java_lang_math_pow ;
6759698e3140 7133857: exp() and pow() should use the x87 ISA on x86
roland
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235 case vmIntrinsics::_dexp : return java_lang_math_exp ;
3249
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2177
diff changeset
236
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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diff changeset
237 case vmIntrinsics::_Reference_get:
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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238 return java_lang_ref_reference_get;
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2177
diff changeset
239 }
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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240
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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diff changeset
241 // Accessor method?
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents: 2177
diff changeset
242 if (m->is_accessor()) {
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
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diff changeset
243 assert(m->size_of_parameters() == 1, "fast code for accessors assumes parameter size = 1");
e1162778c1c8 7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
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244 return accessor;
0
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245 }
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246
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247 // Note: for now: zero locals for all non-empty methods
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248 return zerolocals;
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249 }
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250
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251
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252 void AbstractInterpreter::set_entry_for_kind(AbstractInterpreter::MethodKind kind, address entry) {
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253 assert(kind >= method_handle_invoke_FIRST &&
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
254 kind <= method_handle_invoke_LAST, "late initialization only for MH entry points");
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255 assert(_entry_table[kind] == _entry_table[abstract], "previous value must be AME entry");
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256 _entry_table[kind] = entry;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
257 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
258
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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259
0
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260 // Return true if the interpreter can prove that the given bytecode has
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parents:
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261 // not yet been executed (in Java semantics, not in actual operation).
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parents:
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262 bool AbstractInterpreter::is_not_reached(methodHandle method, int bci) {
2142
8012aa3ccede 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 1972
diff changeset
263 Bytecodes::Code code = method()->code_at(bci);
0
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diff changeset
264
2142
8012aa3ccede 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 1972
diff changeset
265 if (!Bytecodes::must_rewrite(code)) {
0
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parents:
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266 // might have been reached
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parents:
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267 return false;
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parents:
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268 }
a61af66fc99e Initial load
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parents:
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269
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parents:
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270 // the bytecode might not be rewritten if the method is an accessor, etc.
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parents:
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271 address ientry = method->interpreter_entry();
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parents:
diff changeset
272 if (ientry != entry_for_kind(AbstractInterpreter::zerolocals) &&
a61af66fc99e Initial load
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parents:
diff changeset
273 ientry != entry_for_kind(AbstractInterpreter::zerolocals_synchronized))
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274 return false; // interpreter does not run this method!
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275
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276 // otherwise, we can be sure this bytecode has never been executed
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parents:
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277 return true;
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parents:
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278 }
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279
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280
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parents:
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281 #ifndef PRODUCT
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282 void AbstractInterpreter::print_method_kind(MethodKind kind) {
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parents:
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283 switch (kind) {
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parents:
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284 case zerolocals : tty->print("zerolocals" ); break;
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285 case zerolocals_synchronized: tty->print("zerolocals_synchronized"); break;
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286 case native : tty->print("native" ); break;
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parents:
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287 case native_synchronized : tty->print("native_synchronized" ); break;
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288 case empty : tty->print("empty" ); break;
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289 case accessor : tty->print("accessor" ); break;
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parents:
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290 case abstract : tty->print("abstract" ); break;
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parents:
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291 case java_lang_math_sin : tty->print("java_lang_math_sin" ); break;
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parents:
diff changeset
292 case java_lang_math_cos : tty->print("java_lang_math_cos" ); break;
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293 case java_lang_math_tan : tty->print("java_lang_math_tan" ); break;
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294 case java_lang_math_abs : tty->print("java_lang_math_abs" ); break;
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diff changeset
295 case java_lang_math_sqrt : tty->print("java_lang_math_sqrt" ); break;
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296 case java_lang_math_log : tty->print("java_lang_math_log" ); break;
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297 case java_lang_math_log10 : tty->print("java_lang_math_log10" ); break;
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
298 default:
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
299 if (kind >= method_handle_invoke_FIRST &&
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
300 kind <= method_handle_invoke_LAST) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
301 const char* kind_name = vmIntrinsics::name_at(method_handle_intrinsic(kind));
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
302 if (kind_name[0] == '_') kind_name = &kind_name[1]; // '_invokeExact' => 'invokeExact'
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
303 tty->print("method_handle_%s", kind_name);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
304 break;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
305 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
306 ShouldNotReachHere();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 6084
diff changeset
307 break;
0
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parents:
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308 }
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parents:
diff changeset
309 }
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310 #endif // PRODUCT
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311
a61af66fc99e Initial load
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312
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313 //------------------------------------------------------------------------------------------------------------------------
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314 // Deoptimization support
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315
900
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents: 710
diff changeset
316 // If deoptimization happens, this function returns the point of next bytecode to continue execution
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
317 address AbstractInterpreter::deopt_continue_after_entry(Method* method, address bcp, int callee_parameters, bool is_top_frame) {
0
a61af66fc99e Initial load
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parents:
diff changeset
318 assert(method->contains(bcp), "just checkin'");
2142
8012aa3ccede 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 1972
diff changeset
319 Bytecodes::Code code = Bytecodes::java_code_at(method, bcp);
900
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents: 710
diff changeset
320 assert(!Interpreter::bytecode_should_reexecute(code), "should not reexecute");
0
a61af66fc99e Initial load
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parents:
diff changeset
321 int bci = method->bci_from(bcp);
a61af66fc99e Initial load
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parents:
diff changeset
322 int length = -1; // initial value for debugging
a61af66fc99e Initial load
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parents:
diff changeset
323 // compute continuation length
2142
8012aa3ccede 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 1972
diff changeset
324 length = Bytecodes::length_at(method, bcp);
0
a61af66fc99e Initial load
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parents:
diff changeset
325 // compute result type
a61af66fc99e Initial load
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parents:
diff changeset
326 BasicType type = T_ILLEGAL;
900
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents: 710
diff changeset
327
0
a61af66fc99e Initial load
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parents:
diff changeset
328 switch (code) {
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parents:
diff changeset
329 case Bytecodes::_invokevirtual :
a61af66fc99e Initial load
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parents:
diff changeset
330 case Bytecodes::_invokespecial :
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parents:
diff changeset
331 case Bytecodes::_invokestatic :
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parents:
diff changeset
332 case Bytecodes::_invokeinterface: {
a61af66fc99e Initial load
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parents:
diff changeset
333 Thread *thread = Thread::current();
a61af66fc99e Initial load
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parents:
diff changeset
334 ResourceMark rm(thread);
a61af66fc99e Initial load
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parents:
diff changeset
335 methodHandle mh(thread, method);
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 2142
diff changeset
336 type = Bytecode_invoke(mh, bci).result_type();
0
a61af66fc99e Initial load
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parents:
diff changeset
337 // since the cache entry might not be initialized:
a61af66fc99e Initial load
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parents:
diff changeset
338 // (NOT needed for the old calling convension)
a61af66fc99e Initial load
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parents:
diff changeset
339 if (!is_top_frame) {
a61af66fc99e Initial load
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parents:
diff changeset
340 int index = Bytes::get_native_u2(bcp+1);
a61af66fc99e Initial load
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parents:
diff changeset
341 method->constants()->cache()->entry_at(index)->set_parameter_size(callee_parameters);
a61af66fc99e Initial load
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parents:
diff changeset
342 }
a61af66fc99e Initial load
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parents:
diff changeset
343 break;
a61af66fc99e Initial load
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parents:
diff changeset
344 }
a61af66fc99e Initial load
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parents:
diff changeset
345
1059
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
346 case Bytecodes::_invokedynamic: {
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
347 Thread *thread = Thread::current();
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
348 ResourceMark rm(thread);
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
349 methodHandle mh(thread, method);
2177
3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 2142
diff changeset
350 type = Bytecode_invoke(mh, bci).result_type();
1059
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
351 // since the cache entry might not be initialized:
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
352 // (NOT needed for the old calling convension)
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
353 if (!is_top_frame) {
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
354 int index = Bytes::get_native_u4(bcp+1);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
355 method->constants()->invokedynamic_cp_cache_entry_at(index)->set_parameter_size(callee_parameters);
1059
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
356 }
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
357 break;
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
358 }
389049f3f393 6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents: 900
diff changeset
359
0
a61af66fc99e Initial load
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parents:
diff changeset
360 case Bytecodes::_ldc :
a61af66fc99e Initial load
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parents:
diff changeset
361 case Bytecodes::_ldc_w : // fall through
a61af66fc99e Initial load
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parents:
diff changeset
362 case Bytecodes::_ldc2_w:
1602
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1579
diff changeset
363 {
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1579
diff changeset
364 Thread *thread = Thread::current();
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1579
diff changeset
365 ResourceMark rm(thread);
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1579
diff changeset
366 methodHandle mh(thread, method);
2142
8012aa3ccede 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 1972
diff changeset
367 type = Bytecode_loadconstant(mh, bci).result_type();
1602
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1579
diff changeset
368 break;
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1579
diff changeset
369 }
0
a61af66fc99e Initial load
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parents:
diff changeset
370
a61af66fc99e Initial load
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parents:
diff changeset
371 default:
a61af66fc99e Initial load
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parents:
diff changeset
372 type = Bytecodes::result_type(code);
a61af66fc99e Initial load
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parents:
diff changeset
373 break;
a61af66fc99e Initial load
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parents:
diff changeset
374 }
a61af66fc99e Initial load
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parents:
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375
a61af66fc99e Initial load
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parents:
diff changeset
376 // return entry point for computed continuation state & bytecode length
a61af66fc99e Initial load
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parents:
diff changeset
377 return
a61af66fc99e Initial load
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parents:
diff changeset
378 is_top_frame
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parents:
diff changeset
379 ? Interpreter::deopt_entry (as_TosState(type), length)
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parents:
diff changeset
380 : Interpreter::return_entry(as_TosState(type), length);
a61af66fc99e Initial load
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parents:
diff changeset
381 }
a61af66fc99e Initial load
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parents:
diff changeset
382
900
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents: 710
diff changeset
383 // If deoptimization happens, this function returns the point where the interpreter reexecutes
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents: 710
diff changeset
384 // the bytecode.
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents: 710
diff changeset
385 // Note: Bytecodes::_athrow is a special case in that it does not return
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents: 710
diff changeset
386 // Interpreter::deopt_entry(vtos, 0) like others
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6266
diff changeset
387 address AbstractInterpreter::deopt_reexecute_entry(Method* method, address bcp) {
900
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents: 710
diff changeset
388 assert(method->contains(bcp), "just checkin'");
2142
8012aa3ccede 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 1972
diff changeset
389 Bytecodes::Code code = Bytecodes::java_code_at(method, bcp);
900
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diff changeset
390 #ifdef COMPILER1
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diff changeset
391 if(code == Bytecodes::_athrow ) {
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diff changeset
392 return Interpreter::rethrow_exception_entry();
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cfang
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diff changeset
393 }
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diff changeset
394 #endif /* COMPILER1 */
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395 return Interpreter::deopt_entry(vtos, 0);
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diff changeset
396 }
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diff changeset
397
4678
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
398 #ifdef GRAAL
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
399
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
400
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
401 // If deoptimization happens, the interpreter should reexecute these bytecodes.
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
402 // This function mainly helps the compilers to set up the reexecute bit.
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
403 bool AbstractInterpreter::bytecode_should_reexecute(Bytecodes::Code code) {
6275
957c266d8bc5 Merge with http://hg.openjdk.java.net/hsx/hsx24/hotspot/
Doug Simon <doug.simon@oracle.com>
parents: 4678 6266
diff changeset
404 switch (code) {
957c266d8bc5 Merge with http://hg.openjdk.java.net/hsx/hsx24/hotspot/
Doug Simon <doug.simon@oracle.com>
parents: 4678 6266
diff changeset
405 case Bytecodes::_invokedynamic:
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Doug Simon <doug.simon@oracle.com>
parents: 4678 6266
diff changeset
406 case Bytecodes::_invokevirtual:
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Doug Simon <doug.simon@oracle.com>
parents: 4678 6266
diff changeset
407 case Bytecodes::_invokeinterface:
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Doug Simon <doug.simon@oracle.com>
parents: 4678 6266
diff changeset
408 case Bytecodes::_invokespecial:
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Doug Simon <doug.simon@oracle.com>
parents: 4678 6266
diff changeset
409 case Bytecodes::_invokestatic:
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Doug Simon <doug.simon@oracle.com>
parents: 4678 6266
diff changeset
410 return false;
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Doug Simon <doug.simon@oracle.com>
parents: 4678 6266
diff changeset
411 default:
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Doug Simon <doug.simon@oracle.com>
parents: 4678 6266
diff changeset
412 return true;
4678
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
413 }
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
414 return true;
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
415 }
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
416 #else
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
417
900
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418 // If deoptimization happens, the interpreter should reexecute these bytecodes.
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
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parents: 710
diff changeset
419 // This function mainly helps the compilers to set up the reexecute bit.
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diff changeset
420 bool AbstractInterpreter::bytecode_should_reexecute(Bytecodes::Code code) {
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diff changeset
421 switch (code) {
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diff changeset
422 case Bytecodes::_lookupswitch:
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diff changeset
423 case Bytecodes::_tableswitch:
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cfang
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diff changeset
424 case Bytecodes::_fast_binaryswitch:
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cfang
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diff changeset
425 case Bytecodes::_fast_linearswitch:
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cfang
parents: 710
diff changeset
426 // recompute condtional expression folded into _if<cond>
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diff changeset
427 case Bytecodes::_lcmp :
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diff changeset
428 case Bytecodes::_fcmpl :
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cfang
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diff changeset
429 case Bytecodes::_fcmpg :
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diff changeset
430 case Bytecodes::_dcmpl :
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diff changeset
431 case Bytecodes::_dcmpg :
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cfang
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diff changeset
432 case Bytecodes::_ifnull :
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diff changeset
433 case Bytecodes::_ifnonnull :
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cfang
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diff changeset
434 case Bytecodes::_goto :
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cfang
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diff changeset
435 case Bytecodes::_goto_w :
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cfang
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diff changeset
436 case Bytecodes::_ifeq :
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cfang
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diff changeset
437 case Bytecodes::_ifne :
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cfang
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diff changeset
438 case Bytecodes::_iflt :
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cfang
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diff changeset
439 case Bytecodes::_ifge :
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diff changeset
440 case Bytecodes::_ifgt :
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diff changeset
441 case Bytecodes::_ifle :
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cfang
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diff changeset
442 case Bytecodes::_if_icmpeq :
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diff changeset
443 case Bytecodes::_if_icmpne :
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diff changeset
444 case Bytecodes::_if_icmplt :
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cfang
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diff changeset
445 case Bytecodes::_if_icmpge :
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cfang
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diff changeset
446 case Bytecodes::_if_icmpgt :
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cfang
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diff changeset
447 case Bytecodes::_if_icmple :
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diff changeset
448 case Bytecodes::_if_acmpeq :
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diff changeset
449 case Bytecodes::_if_acmpne :
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diff changeset
450 // special cases
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diff changeset
451 case Bytecodes::_getfield :
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diff changeset
452 case Bytecodes::_putfield :
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cfang
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diff changeset
453 case Bytecodes::_getstatic :
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cfang
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diff changeset
454 case Bytecodes::_putstatic :
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cfang
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diff changeset
455 case Bytecodes::_aastore :
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cfang
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diff changeset
456 #ifdef COMPILER1
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diff changeset
457 //special case of reexecution
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diff changeset
458 case Bytecodes::_athrow :
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cfang
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diff changeset
459 #endif
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diff changeset
460 return true;
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cfang
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diff changeset
461
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
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diff changeset
462 default:
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cfang
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diff changeset
463 return false;
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents: 710
diff changeset
464 }
9987d9d5eb0e 6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot
cfang
parents: 710
diff changeset
465 }
4678
a03f3fd16b22 Fix reexecute boolean in HotSpot debug information. Introduce "duringCall" flag in FrameState that indicates that the bci of the frame state denotes an invoke that should *not* be reexecuted.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 3249
diff changeset
466 #endif
900
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cfang
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diff changeset
467
0
a61af66fc99e Initial load
duke
parents:
diff changeset
468 void AbstractInterpreterGenerator::bang_stack_shadow_pages(bool native_call) {
a61af66fc99e Initial load
duke
parents:
diff changeset
469 // Quick & dirty stack overflow checking: bang the stack & handle trap.
a61af66fc99e Initial load
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parents:
diff changeset
470 // Note that we do the banging after the frame is setup, since the exception
a61af66fc99e Initial load
duke
parents:
diff changeset
471 // handling code expects to find a valid interpreter frame on the stack.
a61af66fc99e Initial load
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parents:
diff changeset
472 // Doing the banging earlier fails if the caller frame is not an interpreter
a61af66fc99e Initial load
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parents:
diff changeset
473 // frame.
a61af66fc99e Initial load
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parents:
diff changeset
474 // (Also, the exception throwing code expects to unlock any synchronized
a61af66fc99e Initial load
duke
parents:
diff changeset
475 // method receiever, so do the banging after locking the receiver.)
a61af66fc99e Initial load
duke
parents:
diff changeset
476
a61af66fc99e Initial load
duke
parents:
diff changeset
477 // Bang each page in the shadow zone. We can't assume it's been done for
a61af66fc99e Initial load
duke
parents:
diff changeset
478 // an interpreter frame with greater than a page of locals, so each page
a61af66fc99e Initial load
duke
parents:
diff changeset
479 // needs to be checked. Only true for non-native.
a61af66fc99e Initial load
duke
parents:
diff changeset
480 if (UseStackBanging) {
a61af66fc99e Initial load
duke
parents:
diff changeset
481 const int start_page = native_call ? StackShadowPages : 1;
a61af66fc99e Initial load
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parents:
diff changeset
482 const int page_size = os::vm_page_size();
a61af66fc99e Initial load
duke
parents:
diff changeset
483 for (int pages = start_page; pages <= StackShadowPages ; pages++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
484 __ bang_stack_with_offset(pages*page_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
485 }
a61af66fc99e Initial load
duke
parents:
diff changeset
486 }
a61af66fc99e Initial load
duke
parents:
diff changeset
487 }
6926
a3e2f723f2a5 8000780: make Zero build and run with JDK8
twisti
parents: 6796
diff changeset
488
a3e2f723f2a5 8000780: make Zero build and run with JDK8
twisti
parents: 6796
diff changeset
489 void AbstractInterpreterGenerator::initialize_method_handle_entries() {
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twisti
parents: 6796
diff changeset
490 // method handle entry kinds are generated later in MethodHandlesAdapterGenerator::generate:
a3e2f723f2a5 8000780: make Zero build and run with JDK8
twisti
parents: 6796
diff changeset
491 for (int i = Interpreter::method_handle_invoke_FIRST; i <= Interpreter::method_handle_invoke_LAST; i++) {
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twisti
parents: 6796
diff changeset
492 Interpreter::MethodKind kind = (Interpreter::MethodKind) i;
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twisti
parents: 6796
diff changeset
493 Interpreter::_entry_table[kind] = Interpreter::_entry_table[Interpreter::abstract];
a3e2f723f2a5 8000780: make Zero build and run with JDK8
twisti
parents: 6796
diff changeset
494 }
a3e2f723f2a5 8000780: make Zero build and run with JDK8
twisti
parents: 6796
diff changeset
495 }