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annotate src/share/vm/interpreter/bytecodeInterpreterProfiling.hpp @ 14420:abe03600372a

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8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling Summary: Implement profiling for c2 jit compilation. Also enable new cppInterpreter features. Reviewed-by: kvn
author goetz
date Sun, 15 Sep 2013 15:28:58 +0200
parents
children 327e7269f90d
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14420
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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
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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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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