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annotate src/share/vm/interpreter/bytecodeInterpreterProfiling.hpp @ 14649:f6301b007a16

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6498581: ThreadInterruptTest3 produces wrong output on Windows Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set. Reviewed-by: acorn, kvn Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
author minqi
date Wed, 26 Feb 2014 15:20:41 -0800
parents abe03600372a
children 327e7269f90d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2002, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * Copyright 2012, 2013 SAP AG. All rights reserved.
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5 *
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6 * This code is free software; you can redistribute it and/or modify it
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7 * under the terms of the GNU General Public License version 2 only, as
abe03600372a 8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
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8 * published by the Free Software Foundation.
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9 *
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 * version 2 for more details (a copy is included in the LICENSE file that
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14 * accompanied this code).
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15 *
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16 * You should have received a copy of the GNU General Public License version
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17 * 2 along with this work; if not, write to the Free Software Foundation,
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 *
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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21 * or visit www.oracle.com if you need additional information or have any
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22 * questions.
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23 *
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24 */
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25
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26 // This file defines a set of macros which are used by the c++-interpreter
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27 // for updating a method's methodData object.
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28
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29
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30 #ifndef SHARE_VM_INTERPRETER_BYTECODEINTERPRETERPROFILING_HPP
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31 #define SHARE_VM_INTERPRETER_BYTECODEINTERPRETERPROFILING_HPP
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32
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33
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34 // Global settings /////////////////////////////////////////////////////////////
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35
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36
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37 // Enables profiling support.
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38 #if defined(COMPILER2)
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39 #define CC_INTERP_PROFILE
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40 #endif
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41
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42 // Enables assertions for profiling code (also works in product-builds).
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43 // #define CC_INTERP_PROFILE_WITH_ASSERTIONS
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44
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45
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46 #ifdef CC_INTERP
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47
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48 // Empty dummy implementations if profiling code is switched off. //////////////
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49
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50 #ifndef CC_INTERP_PROFILE
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51
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52 #define SET_MDX(mdx)
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53
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54 #define BI_PROFILE_GET_OR_CREATE_METHOD_DATA(exception_handler) \
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55 if (ProfileInterpreter) { \
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56 ShouldNotReachHere(); \
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57 }
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58
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59 #define BI_PROFILE_ALIGN_TO_CURRENT_BCI()
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60
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61 #define BI_PROFILE_UPDATE_JUMP()
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62 #define BI_PROFILE_UPDATE_BRANCH(is_taken)
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63 #define BI_PROFILE_UPDATE_RET(bci)
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64 #define BI_PROFILE_SUBTYPECHECK_FAILED(receiver)
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65 #define BI_PROFILE_UPDATE_CHECKCAST(null_seen, receiver)
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66 #define BI_PROFILE_UPDATE_INSTANCEOF(null_seen, receiver)
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67 #define BI_PROFILE_UPDATE_CALL()
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68 #define BI_PROFILE_UPDATE_FINALCALL()
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69 #define BI_PROFILE_UPDATE_VIRTUALCALL(receiver)
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70 #define BI_PROFILE_UPDATE_SWITCH(switch_index)
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71
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72
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73 #else
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74
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75
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76 // Non-dummy implementations ///////////////////////////////////////////////////
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77
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78 // Accessors for the current method data pointer 'mdx'.
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79 #define MDX() (istate->mdx())
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80 #define SET_MDX(mdx) \
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81 if (TraceProfileInterpreter) { \
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82 /* Let it look like TraceBytecodes' format. */ \
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83 tty->print_cr("[%d] %4d " \
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84 "mdx " PTR_FORMAT "(%d)" \
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85 " " \
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86 " \t-> " PTR_FORMAT "(%d)", \
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87 (int) THREAD->osthread()->thread_id(), \
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88 BCI(), \
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89 MDX(), \
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90 (MDX() == NULL \
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91 ? 0 \
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92 : istate->method()->method_data()->dp_to_di((address)MDX())), \
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93 mdx, \
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94 istate->method()->method_data()->dp_to_di((address)mdx) \
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95 ); \
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96 }; \
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97 istate->set_mdx(mdx);
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98
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99
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100 // Dumps the profiling method data for the current method.
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101 #ifdef PRODUCT
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102 #define BI_PROFILE_PRINT_METHOD_DATA()
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103 #else // PRODUCT
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104 #define BI_PROFILE_PRINT_METHOD_DATA() \
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105 { \
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106 ttyLocker ttyl; \
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107 MethodData *md = istate->method()->method_data(); \
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108 tty->cr(); \
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109 tty->print("method data at mdx " PTR_FORMAT "(0) for", \
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110 md->data_layout_at(md->bci_to_di(0))); \
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111 istate->method()->print_short_name(tty); \
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112 tty->cr(); \
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113 if (md != NULL) { \
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114 md->print_data_on(tty); \
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115 address mdx = (address) MDX(); \
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116 if (mdx != NULL) { \
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117 tty->print_cr("current mdx " PTR_FORMAT "(%d)", \
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118 mdx, \
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119 istate->method()->method_data()->dp_to_di(mdx)); \
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120 } \
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121 } else { \
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122 tty->print_cr("no method data"); \
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123 } \
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124 }
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125 #endif // PRODUCT
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126
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127
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128 // Gets or creates the profiling method data and initializes mdx.
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129 #define BI_PROFILE_GET_OR_CREATE_METHOD_DATA(exception_handler) \
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130 if (ProfileInterpreter && MDX() == NULL) { \
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131 /* Mdx is not yet initialized for this activation. */ \
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132 MethodData *md = istate->method()->method_data(); \
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133 if (md == NULL) { \
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134 MethodCounters* mcs; \
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135 GET_METHOD_COUNTERS(mcs); \
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136 /* The profiling method data doesn't exist for this method, */ \
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137 /* create it if the counters have overflowed. */ \
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138 if (mcs->invocation_counter() \
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139 ->reached_ProfileLimit(mcs->backedge_counter())) { \
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140 /* Must use CALL_VM, because an async exception may be pending. */ \
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141 CALL_VM((InterpreterRuntime::profile_method(THREAD)), \
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142 exception_handler); \
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143 md = istate->method()->method_data(); \
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144 if (md != NULL) { \
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145 if (TraceProfileInterpreter) { \
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146 BI_PROFILE_PRINT_METHOD_DATA(); \
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147 } \
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148 Method *m = istate->method(); \
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149 int bci = m->bci_from(pc); \
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150 jint di = md->bci_to_di(bci); \
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151 SET_MDX(md->data_layout_at(di)); \
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152 } \
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153 } \
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154 } else { \
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155 /* The profiling method data exists, align the method data pointer */ \
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156 /* mdx to the current bytecode index. */ \
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157 if (TraceProfileInterpreter) { \
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158 BI_PROFILE_PRINT_METHOD_DATA(); \
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159 } \
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160 SET_MDX(md->data_layout_at(md->bci_to_di(BCI()))); \
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161 } \
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162 }
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163
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164
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165 // Asserts that the current method data pointer mdx corresponds
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166 // to the current bytecode.
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167 #if defined(CC_INTERP_PROFILE_WITH_ASSERTIONS)
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168 #define BI_PROFILE_CHECK_MDX() \
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169 { \
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170 MethodData *md = istate->method()->method_data(); \
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171 address mdx = (address) MDX(); \
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172 address mdx2 = (address) md->data_layout_at(md->bci_to_di(BCI())); \
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173 guarantee(md != NULL, "1"); \
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174 guarantee(mdx != NULL, "2"); \
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175 guarantee(mdx2 != NULL, "3"); \
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176 if (mdx != mdx2) { \
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177 BI_PROFILE_PRINT_METHOD_DATA(); \
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178 fatal3("invalid mdx at bci %d:" \
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179 " was " PTR_FORMAT \
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180 " but expected " PTR_FORMAT, \
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181 BCI(), \
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182 mdx, \
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183 mdx2); \
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184 } \
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185 }
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186 #else
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187 #define BI_PROFILE_CHECK_MDX()
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188 #endif
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189
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190
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191 // Aligns the method data pointer mdx to the current bytecode index.
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192 #define BI_PROFILE_ALIGN_TO_CURRENT_BCI() \
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193 if (ProfileInterpreter && MDX() != NULL) { \
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194 MethodData *md = istate->method()->method_data(); \
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195 SET_MDX(md->data_layout_at(md->bci_to_di(BCI()))); \
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196 }
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197
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198
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199 // Updates profiling data for a jump.
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200 #define BI_PROFILE_UPDATE_JUMP() \
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201 if (ProfileInterpreter && MDX() != NULL) { \
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202 BI_PROFILE_CHECK_MDX(); \
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203 JumpData::increment_taken_count_no_overflow(MDX()); \
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204 /* Remember last branch taken count. */ \
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205 mdo_last_branch_taken_count = JumpData::taken_count(MDX()); \
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206 SET_MDX(JumpData::advance_taken(MDX())); \
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207 }
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208
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209
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210 // Updates profiling data for a taken/not taken branch.
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211 #define BI_PROFILE_UPDATE_BRANCH(is_taken) \
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212 if (ProfileInterpreter && MDX() != NULL) { \
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213 BI_PROFILE_CHECK_MDX(); \
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214 if (is_taken) { \
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215 BranchData::increment_taken_count_no_overflow(MDX()); \
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216 /* Remember last branch taken count. */ \
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217 mdo_last_branch_taken_count = BranchData::taken_count(MDX()); \
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218 SET_MDX(BranchData::advance_taken(MDX())); \
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219 } else { \
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220 BranchData::increment_not_taken_count_no_overflow(MDX()); \
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221 SET_MDX(BranchData::advance_not_taken(MDX())); \
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222 } \
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223 }
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224
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225
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226 // Updates profiling data for a ret with given bci.
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227 #define BI_PROFILE_UPDATE_RET(bci) \
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228 if (ProfileInterpreter && MDX() != NULL) { \
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229 BI_PROFILE_CHECK_MDX(); \
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230 MethodData *md = istate->method()->method_data(); \
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231 /* FIXME: there is more to do here than increment and advance(mdx)! */ \
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232 CounterData::increment_count_no_overflow(MDX()); \
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233 SET_MDX(RetData::advance(md, bci)); \
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234 }
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235
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236 // Decrement counter at checkcast if the subtype check fails (as template
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237 // interpreter does!).
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238 #define BI_PROFILE_SUBTYPECHECK_FAILED(receiver) \
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239 if (ProfileInterpreter && MDX() != NULL) { \
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240 BI_PROFILE_CHECK_MDX(); \
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241 ReceiverTypeData::increment_receiver_count_no_overflow(MDX(), receiver); \
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242 ReceiverTypeData::decrement_count(MDX()); \
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243 }
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244
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245 // Updates profiling data for a checkcast (was a null seen? which receiver?).
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246 #define BI_PROFILE_UPDATE_CHECKCAST(null_seen, receiver) \
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247 if (ProfileInterpreter && MDX() != NULL) { \
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248 BI_PROFILE_CHECK_MDX(); \
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249 if (null_seen) { \
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250 ReceiverTypeData::set_null_seen(MDX()); \
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251 } else { \
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252 /* Template interpreter doesn't increment count. */ \
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253 /* ReceiverTypeData::increment_count_no_overflow(MDX()); */ \
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254 ReceiverTypeData::increment_receiver_count_no_overflow(MDX(), receiver); \
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255 } \
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256 SET_MDX(ReceiverTypeData::advance(MDX())); \
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257 }
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258
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259
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260 // Updates profiling data for an instanceof (was a null seen? which receiver?).
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261 #define BI_PROFILE_UPDATE_INSTANCEOF(null_seen, receiver) \
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262 BI_PROFILE_UPDATE_CHECKCAST(null_seen, receiver)
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263
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264
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265 // Updates profiling data for a call.
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266 #define BI_PROFILE_UPDATE_CALL() \
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267 if (ProfileInterpreter && MDX() != NULL) { \
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268 BI_PROFILE_CHECK_MDX(); \
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269 CounterData::increment_count_no_overflow(MDX()); \
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270 SET_MDX(CounterData::advance(MDX())); \
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271 }
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272
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273
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274 // Updates profiling data for a final call.
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275 #define BI_PROFILE_UPDATE_FINALCALL() \
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276 if (ProfileInterpreter && MDX() != NULL) { \
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277 BI_PROFILE_CHECK_MDX(); \
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278 VirtualCallData::increment_count_no_overflow(MDX()); \
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279 SET_MDX(VirtualCallData::advance(MDX())); \
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280 }
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281
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282
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283 // Updates profiling data for a virtual call with given receiver Klass.
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284 #define BI_PROFILE_UPDATE_VIRTUALCALL(receiver) \
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285 if (ProfileInterpreter && MDX() != NULL) { \
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286 BI_PROFILE_CHECK_MDX(); \
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287 VirtualCallData::increment_receiver_count_no_overflow(MDX(), receiver); \
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288 SET_MDX(VirtualCallData::advance(MDX())); \
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289 }
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290
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291
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292 // Updates profiling data for a switch (tabelswitch or lookupswitch) with
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293 // given taken index (-1 means default case was taken).
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294 #define BI_PROFILE_UPDATE_SWITCH(switch_index) \
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295 if (ProfileInterpreter && MDX() != NULL) { \
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296 BI_PROFILE_CHECK_MDX(); \
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297 MultiBranchData::increment_count_no_overflow(MDX(), switch_index); \
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298 SET_MDX(MultiBranchData::advance(MDX(), switch_index)); \
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299 }
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300
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301
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302 // The end /////////////////////////////////////////////////////////////////////
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303
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304 #endif // CC_INTERP_PROFILE
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305
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306 #endif // CC_INTERP
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307
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308 #endif // SHARE_VM_INTERPRETER_BYTECODECINTERPRETERPROFILING_HPP