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annotate src/share/vm/opto/bytecodeInfo.cpp @ 10408:836a62f43af9

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Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
author Doug Simon <doug.simon@oracle.com>
date Wed, 19 Jun 2013 10:45:56 +0200
parents b9a918201d47 1da5d70655e9
children 6b0fd0964b87
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1 /*
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2 * Copyright (c) 1998, 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 "ci/ciReplay.hpp"
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27 #include "classfile/systemDictionary.hpp"
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28 #include "classfile/vmSymbols.hpp"
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29 #include "compiler/compileBroker.hpp"
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30 #include "compiler/compileLog.hpp"
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31 #include "interpreter/linkResolver.hpp"
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32 #include "oops/objArrayKlass.hpp"
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33 #include "opto/callGenerator.hpp"
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34 #include "opto/parse.hpp"
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35 #include "runtime/handles.inline.hpp"
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36
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37 //=============================================================================
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38 //------------------------------InlineTree-------------------------------------
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39 InlineTree::InlineTree(Compile* c,
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40 const InlineTree *caller_tree, ciMethod* callee,
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41 JVMState* caller_jvms, int caller_bci,
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42 float site_invoke_ratio, int max_inline_level) :
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43 C(c),
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44 _caller_jvms(caller_jvms),
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45 _caller_tree((InlineTree*) caller_tree),
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46 _method(callee),
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47 _site_invoke_ratio(site_invoke_ratio),
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48 _max_inline_level(max_inline_level),
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49 _count_inline_bcs(method()->code_size_for_inlining()),
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50 _subtrees(c->comp_arena(), 2, 0, NULL),
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51 _msg(NULL)
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52 {
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53 NOT_PRODUCT(_count_inlines = 0;)
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54 if (_caller_jvms != NULL) {
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55 // Keep a private copy of the caller_jvms:
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56 _caller_jvms = new (C) JVMState(caller_jvms->method(), caller_tree->caller_jvms());
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57 _caller_jvms->set_bci(caller_jvms->bci());
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58 assert(!caller_jvms->should_reexecute(), "there should be no reexecute bytecode with inlining");
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59 }
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60 assert(_caller_jvms->same_calls_as(caller_jvms), "consistent JVMS");
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61 assert((caller_tree == NULL ? 0 : caller_tree->stack_depth() + 1) == stack_depth(), "correct (redundant) depth parameter");
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62 assert(caller_bci == this->caller_bci(), "correct (redundant) bci parameter");
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63 if (UseOldInlining) {
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64 // Update hierarchical counts, count_inline_bcs() and count_inlines()
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65 InlineTree *caller = (InlineTree *)caller_tree;
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66 for( ; caller != NULL; caller = ((InlineTree *)(caller->caller_tree())) ) {
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67 caller->_count_inline_bcs += count_inline_bcs();
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68 NOT_PRODUCT(caller->_count_inlines++;)
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69 }
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70 }
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71 }
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72
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73 InlineTree::InlineTree(Compile* c, ciMethod* callee_method, JVMState* caller_jvms,
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74 float site_invoke_ratio, int max_inline_level) :
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75 C(c),
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76 _caller_jvms(caller_jvms),
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77 _caller_tree(NULL),
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78 _method(callee_method),
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79 _site_invoke_ratio(site_invoke_ratio),
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80 _max_inline_level(max_inline_level),
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81 _count_inline_bcs(method()->code_size()),
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82 _msg(NULL)
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83 {
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84 NOT_PRODUCT(_count_inlines = 0;)
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85 assert(!UseOldInlining, "do not use for old stuff");
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86 }
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87
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88 /**
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89 * Return true when EA is ON and a java constructor is called or
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90 * a super constructor is called from an inlined java constructor.
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91 * Also return true for boxing methods.
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92 */
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93 static bool is_init_with_ea(ciMethod* callee_method,
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94 ciMethod* caller_method, Compile* C) {
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95 if (!C->do_escape_analysis() || !EliminateAllocations) {
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96 return false; // EA is off
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97 }
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98 if (callee_method->is_initializer()) {
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99 return true; // constuctor
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100 }
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101 if (caller_method->is_initializer() &&
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102 caller_method != C->method() &&
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103 caller_method->holder()->is_subclass_of(callee_method->holder())) {
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104 return true; // super constructor is called from inlined constructor
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105 }
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106 if (C->eliminate_boxing() && callee_method->is_boxing_method()) {
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107 return true;
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108 }
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109 return false;
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110 }
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111
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112 /**
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113 * Force inlining unboxing accessor.
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114 */
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115 static bool is_unboxing_method(ciMethod* callee_method, Compile* C) {
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116 return C->eliminate_boxing() && callee_method->is_unboxing_method();
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117 }
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118
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119 // positive filter: should callee be inlined?
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120 bool InlineTree::should_inline(ciMethod* callee_method, ciMethod* caller_method,
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121 int caller_bci, ciCallProfile& profile,
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122 WarmCallInfo* wci_result) {
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123 // Allows targeted inlining
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124 if(callee_method->should_inline()) {
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125 *wci_result = *(WarmCallInfo::always_hot());
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126 if (PrintInlining && Verbose) {
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127 CompileTask::print_inline_indent(inline_level());
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128 tty->print_cr("Inlined method is hot: ");
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129 }
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130 set_msg("force inline by CompilerOracle");
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131 return true;
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132 }
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133
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134 int size = callee_method->code_size_for_inlining();
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135
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136 // Check for too many throws (and not too huge)
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137 if(callee_method->interpreter_throwout_count() > InlineThrowCount &&
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138 size < InlineThrowMaxSize ) {
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139 wci_result->set_profit(wci_result->profit() * 100);
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140 if (PrintInlining && Verbose) {
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141 CompileTask::print_inline_indent(inline_level());
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142 tty->print_cr("Inlined method with many throws (throws=%d):", callee_method->interpreter_throwout_count());
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143 }
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144 set_msg("many throws");
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145 return true;
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146 }
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147
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148 if (!UseOldInlining) {
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149 set_msg("!UseOldInlining");
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150 return true; // size and frequency are represented in a new way
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151 }
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152
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153 int default_max_inline_size = C->max_inline_size();
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154 int inline_small_code_size = InlineSmallCode / 4;
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155 int max_inline_size = default_max_inline_size;
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156
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157 int call_site_count = method()->scale_count(profile.count());
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158 int invoke_count = method()->interpreter_invocation_count();
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159
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160 assert(invoke_count != 0, "require invocation count greater than zero");
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161 int freq = call_site_count / invoke_count;
41
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162
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163 // bump the max size if the call is frequent
41
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164 if ((freq >= InlineFrequencyRatio) ||
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165 (call_site_count >= InlineFrequencyCount) ||
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166 is_unboxing_method(callee_method, C) ||
41
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kvn
parents: 0
diff changeset
167 is_init_with_ea(callee_method, caller_method, C)) {
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diff changeset
168
3366
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169 max_inline_size = C->freq_inline_size();
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170 if (size <= max_inline_size && TraceFrequencyInlining) {
3458
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
171 CompileTask::print_inline_indent(inline_level());
0
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172 tty->print_cr("Inlined frequent method (freq=%d count=%d):", freq, call_site_count);
3458
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never
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173 CompileTask::print_inline_indent(inline_level());
0
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174 callee_method->print();
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175 tty->cr();
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176 }
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177 } else {
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178 // Not hot. Check for medium-sized pre-existing nmethod at cold sites.
41
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179 if (callee_method->has_compiled_code() &&
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180 callee_method->instructions_size() > inline_small_code_size) {
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181 set_msg("already compiled into a medium method");
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182 return false;
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183 }
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184 }
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185 if (size > max_inline_size) {
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186 if (max_inline_size > default_max_inline_size) {
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187 set_msg("hot method too big");
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188 } else {
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189 set_msg("too big");
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190 }
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191 return false;
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192 }
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193 return true;
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194 }
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195
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196
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197 // negative filter: should callee NOT be inlined?
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198 bool InlineTree::should_not_inline(ciMethod *callee_method,
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199 ciMethod* caller_method,
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200 WarmCallInfo* wci_result) {
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201
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202 const char* fail_msg = NULL;
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203
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204 // First check all inlining restrictions which are required for correctness
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205 if ( callee_method->is_abstract()) {
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206 fail_msg = "abstract method"; // // note: we allow ik->is_abstract()
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207 } else if (!callee_method->holder()->is_initialized()) {
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208 fail_msg = "method holder not initialized";
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209 } else if ( callee_method->is_native()) {
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210 fail_msg = "native method";
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211 } else if ( callee_method->dont_inline()) {
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212 fail_msg = "don't inline by annotation";
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213 }
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214
0
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215 if (!UseOldInlining) {
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216 if (fail_msg != NULL) {
0
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217 *wci_result = *(WarmCallInfo::always_cold());
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218 set_msg(fail_msg);
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219 return true;
0
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220 }
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221
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222 if (callee_method->has_unloaded_classes_in_signature()) {
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223 wci_result->set_profit(wci_result->profit() * 0.1);
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224 }
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225
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226 // don't inline exception code unless the top method belongs to an
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227 // exception class
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228 if (callee_method->holder()->is_subclass_of(C->env()->Throwable_klass())) {
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229 ciMethod* top_method = caller_jvms() ? caller_jvms()->of_depth(1)->method() : method();
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230 if (!top_method->holder()->is_subclass_of(C->env()->Throwable_klass())) {
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231 wci_result->set_profit(wci_result->profit() * 0.1);
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232 }
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233 }
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234
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235 if (callee_method->has_compiled_code() &&
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bd7a7ce2e264 6830717: replay of compilations would help with debugging
minqi
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diff changeset
236 callee_method->instructions_size() > InlineSmallCode) {
0
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237 wci_result->set_profit(wci_result->profit() * 0.1);
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238 // %%% adjust wci_result->size()?
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239 }
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240
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241 return false;
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242 }
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243
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244 // one more inlining restriction
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245 if (fail_msg == NULL && callee_method->has_unloaded_classes_in_signature()) {
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246 fail_msg = "unloaded signature classes";
0
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247 }
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248
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249 if (fail_msg != NULL) {
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250 set_msg(fail_msg);
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251 return true;
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252 }
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dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
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253
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254 // ignore heuristic controls on inlining
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255 if (callee_method->should_inline()) {
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256 set_msg("force inline by CompilerOracle");
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257 return false;
0
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258 }
5407
80ae8033fe01 Perform compiler oracle should_not_inline check before heuristic checks
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 3939
diff changeset
259 if (callee_method->should_not_inline()) {
8151
b8f261ba79c6 Minimize diff to plain HotSpot version.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 8124
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260 set_msg("disallowed by CompilerOracle");
b8f261ba79c6 Minimize diff to plain HotSpot version.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 8124
diff changeset
261 return false;
5407
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Gilles Duboscq <duboscq@ssw.jku.at>
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diff changeset
262 }
0
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263
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264 if (callee_method->should_not_inline()) {
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265 set_msg("disallowed by CompilerOracle");
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266 return true;
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267 }
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268
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269 #ifndef PRODUCT
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270 if (ciReplay::should_not_inline(callee_method)) {
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271 set_msg("disallowed by ciReplay");
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272 return true;
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273 }
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274 #endif
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275
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276 // Now perform checks which are heuristic
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277
10278
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278 if (is_unboxing_method(callee_method, C)) {
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279 // Inline unboxing methods.
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280 return false;
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diff changeset
281 }
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
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diff changeset
282
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
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parents: 7421
diff changeset
283 if (!callee_method->force_inline()) {
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284 if (callee_method->has_compiled_code() &&
d092d1b31229 8005071: Incremental inlining for JSR 292
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285 callee_method->instructions_size() > InlineSmallCode) {
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286 set_msg("already compiled into a big method");
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287 return true;
7473
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diff changeset
288 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff changeset
289 }
0
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290
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291 // don't inline exception code unless the top method belongs to an
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292 // exception class
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293 if (caller_tree() != NULL &&
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294 callee_method->holder()->is_subclass_of(C->env()->Throwable_klass())) {
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295 const InlineTree *top = this;
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296 while (top->caller_tree() != NULL) top = top->caller_tree();
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297 ciInstanceKlass* k = top->method()->holder();
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298 if (!k->is_subclass_of(C->env()->Throwable_klass())) {
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diff changeset
299 set_msg("exception method");
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300 return true;
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diff changeset
301 }
0
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302 }
a61af66fc99e Initial load
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303
5950
0f4014d7731b 7152961: InlineTree::should_not_inline may exit prematurely
never
parents: 3939
diff changeset
304 if (UseStringCache) {
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never
parents: 3939
diff changeset
305 // Do not inline StringCache::profile() method used only at the beginning.
0f4014d7731b 7152961: InlineTree::should_not_inline may exit prematurely
never
parents: 3939
diff changeset
306 if (callee_method->name() == ciSymbol::profile_name() &&
0f4014d7731b 7152961: InlineTree::should_not_inline may exit prematurely
never
parents: 3939
diff changeset
307 callee_method->holder()->name() == ciSymbol::java_lang_StringCache()) {
8119
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diff changeset
308 set_msg("profiling method");
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diff changeset
309 return true;
5950
0f4014d7731b 7152961: InlineTree::should_not_inline may exit prematurely
never
parents: 3939
diff changeset
310 }
0f4014d7731b 7152961: InlineTree::should_not_inline may exit prematurely
never
parents: 3939
diff changeset
311 }
0f4014d7731b 7152961: InlineTree::should_not_inline may exit prematurely
never
parents: 3939
diff changeset
312
0
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313 // use frequency-based objections only for non-trivial methods
8119
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314 if (callee_method->code_size() <= MaxTrivialSize) {
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315 return false;
133bf557ef77 8007439: C2: adding successful message of inlining
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parents: 7991
diff changeset
316 }
41
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
317
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
318 // don't use counts with -Xcomp or CTW
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
319 if (UseInterpreter && !CompileTheWorld) {
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
320
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
321 if (!callee_method->has_compiled_code() &&
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
322 !callee_method->was_executed_more_than(0)) {
8119
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diff changeset
323 set_msg("never executed");
133bf557ef77 8007439: C2: adding successful message of inlining
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diff changeset
324 return true;
41
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
325 }
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
326
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
327 if (is_init_with_ea(callee_method, caller_method, C)) {
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
328 // Escape Analysis: inline all executed constructors
10278
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diff changeset
329 return false;
41
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
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diff changeset
330 } else if (!callee_method->was_executed_more_than(MIN2(MinInliningThreshold,
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
331 CompileThreshold >> 1))) {
8119
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parents: 7991
diff changeset
332 set_msg("executed < MinInliningThreshold times");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
333 return true;
41
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
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parents: 0
diff changeset
334 }
0
a61af66fc99e Initial load
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335 }
a61af66fc99e Initial load
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diff changeset
336
8119
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diff changeset
337 return false;
0
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diff changeset
338 }
a61af66fc99e Initial load
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339
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340 //-----------------------------try_to_inline-----------------------------------
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diff changeset
341 // return true if ok
0
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parents:
diff changeset
342 // Relocated from "InliningClosure::try_to_inline"
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diff changeset
343 bool InlineTree::try_to_inline(ciMethod* callee_method, ciMethod* caller_method,
133bf557ef77 8007439: C2: adding successful message of inlining
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parents: 7991
diff changeset
344 int caller_bci, ciCallProfile& profile,
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
345 WarmCallInfo* wci_result, bool& should_delay) {
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
346
133bf557ef77 8007439: C2: adding successful message of inlining
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parents: 7991
diff changeset
347 // Old algorithm had funny accumulating BC-size counters
0
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diff changeset
348 if (UseOldInlining && ClipInlining
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349 && (int)count_inline_bcs() >= DesiredMethodLimit) {
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
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diff changeset
350 if (!callee_method->force_inline() || !IncrementalInline) {
8119
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iignatyev
parents: 7991
diff changeset
351 set_msg("size > DesiredMethodLimit");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
352 return false;
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
353 } else if (!C->inlining_incrementally()) {
d092d1b31229 8005071: Incremental inlining for JSR 292
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parents: 7421
diff changeset
354 should_delay = true;
d092d1b31229 8005071: Incremental inlining for JSR 292
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parents: 7421
diff changeset
355 }
0
a61af66fc99e Initial load
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356 }
a61af66fc99e Initial load
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357
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diff changeset
358 if (!should_inline(callee_method, caller_method, caller_bci, profile,
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
359 wci_result)) {
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
360 return false;
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
361 }
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
362 if (should_not_inline(callee_method, caller_method, wci_result)) {
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
363 return false;
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
364 }
0
a61af66fc99e Initial load
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diff changeset
365
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c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
366 if (InlineAccessors && callee_method->is_accessor()) {
c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
367 // accessor methods are not subject to any of the following limits.
8119
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diff changeset
368 set_msg("accessor");
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iignatyev
parents: 7991
diff changeset
369 return true;
1157
c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
370 }
0
a61af66fc99e Initial load
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parents:
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371
a61af66fc99e Initial load
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parents:
diff changeset
372 // suppress a few checks for accessors and trivial methods
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
373 if (callee_method->code_size() > MaxTrivialSize) {
41
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
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parents: 0
diff changeset
374
0
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375 // don't inline into giant methods
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
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parents: 7421
diff changeset
376 if (C->over_inlining_cutoff()) {
d092d1b31229 8005071: Incremental inlining for JSR 292
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parents: 7421
diff changeset
377 if ((!callee_method->force_inline() && !caller_method->is_compiled_lambda_form())
d092d1b31229 8005071: Incremental inlining for JSR 292
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parents: 7421
diff changeset
378 || !IncrementalInline) {
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diff changeset
379 set_msg("NodeCountInliningCutoff");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
380 return false;
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
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parents: 7421
diff changeset
381 } else {
d092d1b31229 8005071: Incremental inlining for JSR 292
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diff changeset
382 should_delay = true;
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
383 }
41
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
384 }
0
a61af66fc99e Initial load
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parents:
diff changeset
385
41
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
386 if ((!UseInterpreter || CompileTheWorld) &&
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
387 is_init_with_ea(callee_method, caller_method, C)) {
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
388
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
389 // Escape Analysis stress testing when running Xcomp or CTW:
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
390 // inline constructors even if they are not reached.
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
391
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
392 } else if (profile.count() == 0) {
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
393 // don't inline unreached call sites
8119
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parents: 7991
diff changeset
394 set_msg("call site not reached");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
395 return false;
41
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
396 }
0
a61af66fc99e Initial load
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parents:
diff changeset
397 }
a61af66fc99e Initial load
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parents:
diff changeset
398
1157
c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
399 if (!C->do_inlining() && InlineAccessors) {
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
400 set_msg("not an accessor");
133bf557ef77 8007439: C2: adding successful message of inlining
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parents: 7991
diff changeset
401 return false;
41
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
402 }
3458
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
403 if (inline_level() > _max_inline_level) {
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
404 if (!callee_method->force_inline() || !IncrementalInline) {
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
405 set_msg("inlining too deep");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
406 return false;
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
407 } else if (!C->inlining_incrementally()) {
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
408 should_delay = true;
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
409 }
41
874b2c4f43d1 6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents: 0
diff changeset
410 }
2405
3d58a4983660 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 2357
diff changeset
411
3334
b21ecca7ccc4 6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
twisti
parents: 2405
diff changeset
412 // detect direct and indirect recursive inlining
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
413 if (!callee_method->is_compiled_lambda_form()) {
3334
b21ecca7ccc4 6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
twisti
parents: 2405
diff changeset
414 // count the current method and the callee
b21ecca7ccc4 6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
twisti
parents: 2405
diff changeset
415 int inline_level = (method() == callee_method) ? 1 : 0;
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
416 if (inline_level > MaxRecursiveInlineLevel) {
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
417 set_msg("recursively inlining too deep");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
418 return false;
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
419 }
3334
b21ecca7ccc4 6552561: MaxRecursiveInlineLevel flag doesn't operate correctly
twisti
parents: 2405
diff changeset
420 // count callers of current method and callee
2405
3d58a4983660 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 2357
diff changeset
421 JVMState* jvms = caller_jvms();
3d58a4983660 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 2357
diff changeset
422 while (jvms != NULL && jvms->has_method()) {
3d58a4983660 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 2357
diff changeset
423 if (jvms->method() == callee_method) {
3d58a4983660 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 2357
diff changeset
424 inline_level++;
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
425 if (inline_level > MaxRecursiveInlineLevel) {
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
426 set_msg("recursively inlining too deep");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
427 return false;
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
428 }
2405
3d58a4983660 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 2357
diff changeset
429 }
3d58a4983660 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 2357
diff changeset
430 jvms = jvms->caller();
3d58a4983660 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 2357
diff changeset
431 }
3d58a4983660 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 2357
diff changeset
432 }
3d58a4983660 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 2357
diff changeset
433
3897
de847cac9235 7078382: JSR 292: don't count method handle adapters against inlining budgets
twisti
parents: 3458
diff changeset
434 int size = callee_method->code_size_for_inlining();
0
a61af66fc99e Initial load
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parents:
diff changeset
435
a61af66fc99e Initial load
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parents:
diff changeset
436 if (UseOldInlining && ClipInlining
a61af66fc99e Initial load
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parents:
diff changeset
437 && (int)count_inline_bcs() + size >= DesiredMethodLimit) {
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
438 if (!callee_method->force_inline() || !IncrementalInline) {
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
439 set_msg("size > DesiredMethodLimit");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
440 return false;
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
441 } else if (!C->inlining_incrementally()) {
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
442 should_delay = true;
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
443 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
444 }
a61af66fc99e Initial load
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parents:
diff changeset
445
a61af66fc99e Initial load
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parents:
diff changeset
446 // ok, inline this method
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
447 return true;
0
a61af66fc99e Initial load
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parents:
diff changeset
448 }
a61af66fc99e Initial load
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parents:
diff changeset
449
a61af66fc99e Initial load
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parents:
diff changeset
450 //------------------------------pass_initial_checks----------------------------
a61af66fc99e Initial load
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parents:
diff changeset
451 bool pass_initial_checks(ciMethod* caller_method, int caller_bci, ciMethod* callee_method) {
a61af66fc99e Initial load
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parents:
diff changeset
452 ciInstanceKlass *callee_holder = callee_method ? callee_method->holder() : NULL;
a61af66fc99e Initial load
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parents:
diff changeset
453 // Check if a callee_method was suggested
a61af66fc99e Initial load
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parents:
diff changeset
454 if( callee_method == NULL ) return false;
a61af66fc99e Initial load
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parents:
diff changeset
455 // Check if klass of callee_method is loaded
a61af66fc99e Initial load
duke
parents:
diff changeset
456 if( !callee_holder->is_loaded() ) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
457 if( !callee_holder->is_initialized() ) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
458 if( !UseInterpreter || CompileTheWorld /* running Xcomp or CTW */ ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
459 // Checks that constant pool's call site has been visited
a61af66fc99e Initial load
duke
parents:
diff changeset
460 // stricter than callee_holder->is_initialized()
a61af66fc99e Initial load
duke
parents:
diff changeset
461 ciBytecodeStream iter(caller_method);
a61af66fc99e Initial load
duke
parents:
diff changeset
462 iter.force_bci(caller_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
463 Bytecodes::Code call_bc = iter.cur_bc();
1137
97125851f396 6829187: compiler optimizations required for JSR 292
twisti
parents: 903
diff changeset
464 // An invokedynamic instruction does not have a klass.
97125851f396 6829187: compiler optimizations required for JSR 292
twisti
parents: 903
diff changeset
465 if (call_bc != Bytecodes::_invokedynamic) {
1565
ab102d5d923e 6939207: refactor constant pool index processing
jrose
parents: 1564
diff changeset
466 int index = iter.get_index_u2_cpcache();
1137
97125851f396 6829187: compiler optimizations required for JSR 292
twisti
parents: 903
diff changeset
467 if (!caller_method->is_klass_loaded(index, true)) {
97125851f396 6829187: compiler optimizations required for JSR 292
twisti
parents: 903
diff changeset
468 return false;
97125851f396 6829187: compiler optimizations required for JSR 292
twisti
parents: 903
diff changeset
469 }
97125851f396 6829187: compiler optimizations required for JSR 292
twisti
parents: 903
diff changeset
470 // Try to do constant pool resolution if running Xcomp
97125851f396 6829187: compiler optimizations required for JSR 292
twisti
parents: 903
diff changeset
471 if( !caller_method->check_call(index, call_bc == Bytecodes::_invokestatic) ) {
97125851f396 6829187: compiler optimizations required for JSR 292
twisti
parents: 903
diff changeset
472 return false;
97125851f396 6829187: compiler optimizations required for JSR 292
twisti
parents: 903
diff changeset
473 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
474 }
a61af66fc99e Initial load
duke
parents:
diff changeset
475 }
a61af66fc99e Initial load
duke
parents:
diff changeset
476 // We will attempt to see if a class/field/etc got properly loaded. If it
a61af66fc99e Initial load
duke
parents:
diff changeset
477 // did not, it may attempt to throw an exception during our probing. Catch
a61af66fc99e Initial load
duke
parents:
diff changeset
478 // and ignore such exceptions and do not attempt to compile the method.
a61af66fc99e Initial load
duke
parents:
diff changeset
479 if( callee_method->should_exclude() ) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
480
a61af66fc99e Initial load
duke
parents:
diff changeset
481 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
482 }
a61af66fc99e Initial load
duke
parents:
diff changeset
483
3900
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
484 //------------------------------check_can_parse--------------------------------
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
485 const char* InlineTree::check_can_parse(ciMethod* callee) {
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
486 // Certain methods cannot be parsed at all:
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
487 if ( callee->is_native()) return "native method";
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
488 if ( callee->is_abstract()) return "abstract method";
3900
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
489 if (!callee->can_be_compiled()) return "not compilable (disabled)";
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
490 if (!callee->has_balanced_monitors()) return "not compilable (unbalanced monitors)";
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
491 if ( callee->get_flow_analysis()->failing()) return "not compilable (flow analysis failed)";
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
492 return NULL;
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
493 }
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
494
0
a61af66fc99e Initial load
duke
parents:
diff changeset
495 //------------------------------print_inlining---------------------------------
7991
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
496 void InlineTree::print_inlining(ciMethod* callee_method, int caller_bci,
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
497 bool success) const {
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
498 const char* inline_msg = msg();
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
499 assert(inline_msg != NULL, "just checking");
7991
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
500 if (C->log() != NULL) {
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
501 if (success) {
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
502 C->log()->inline_success(inline_msg);
7991
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
503 } else {
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
504 C->log()->inline_fail(inline_msg);
7991
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
505 }
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
506 }
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
507 if (PrintInlining) {
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
508 C->print_inlining(callee_method, inline_level(), caller_bci, inline_msg);
7991
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
509 if (callee_method == NULL) tty->print(" callee not monotonic or profiled");
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
510 if (Verbose && callee_method) {
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
511 const InlineTree *top = this;
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
512 while( top->caller_tree() != NULL ) { top = top->caller_tree(); }
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
513 //tty->print(" bcs: %d+%d invoked: %d", top->count_inline_bcs(), callee_method->code_size(), callee_method->interpreter_invocation_count());
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
514 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
515 }
a61af66fc99e Initial load
duke
parents:
diff changeset
516 }
a61af66fc99e Initial load
duke
parents:
diff changeset
517
a61af66fc99e Initial load
duke
parents:
diff changeset
518 //------------------------------ok_to_inline-----------------------------------
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
519 WarmCallInfo* InlineTree::ok_to_inline(ciMethod* callee_method, JVMState* jvms, ciCallProfile& profile, WarmCallInfo* initial_wci, bool& should_delay) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
520 assert(callee_method != NULL, "caller checks for optimized virtual!");
7473
d092d1b31229 8005071: Incremental inlining for JSR 292
roland
parents: 7421
diff changeset
521 assert(!should_delay, "should be initialized to false");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
522 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
523 // Make sure the incoming jvms has the same information content as me.
a61af66fc99e Initial load
duke
parents:
diff changeset
524 // This means that we can eventually make this whole class AllStatic.
a61af66fc99e Initial load
duke
parents:
diff changeset
525 if (jvms->caller() == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
526 assert(_caller_jvms == NULL, "redundant instance state");
a61af66fc99e Initial load
duke
parents:
diff changeset
527 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
528 assert(_caller_jvms->same_calls_as(jvms->caller()), "redundant instance state");
a61af66fc99e Initial load
duke
parents:
diff changeset
529 }
a61af66fc99e Initial load
duke
parents:
diff changeset
530 assert(_method == jvms->method(), "redundant instance state");
a61af66fc99e Initial load
duke
parents:
diff changeset
531 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
532 int caller_bci = jvms->bci();
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
533 ciMethod* caller_method = jvms->method();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
534
3900
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
535 // Do some initial checks.
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
536 if (!pass_initial_checks(caller_method, caller_bci, callee_method)) {
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
537 set_msg("failed initial checks");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
538 print_inlining(callee_method, caller_bci, false /* !success */);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
539 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
540 }
a61af66fc99e Initial load
duke
parents:
diff changeset
541
3900
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
542 // Do some parse checks.
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
543 set_msg(check_can_parse(callee_method));
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
544 if (msg() != NULL) {
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
545 print_inlining(callee_method, caller_bci, false /* !success */);
3900
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
546 return NULL;
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
547 }
a32de5085326 7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents: 3897
diff changeset
548
0
a61af66fc99e Initial load
duke
parents:
diff changeset
549 // Check if inlining policy says no.
a61af66fc99e Initial load
duke
parents:
diff changeset
550 WarmCallInfo wci = *(initial_wci);
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
551 bool success = try_to_inline(callee_method, caller_method, caller_bci,
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
552 profile, &wci, should_delay);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
553
a61af66fc99e Initial load
duke
parents:
diff changeset
554 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
555 if (UseOldInlining && InlineWarmCalls
a61af66fc99e Initial load
duke
parents:
diff changeset
556 && (PrintOpto || PrintOptoInlining || PrintInlining)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
557 bool cold = wci.is_cold();
a61af66fc99e Initial load
duke
parents:
diff changeset
558 bool hot = !cold && wci.is_hot();
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
559 bool old_cold = !success;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
560 if (old_cold != cold || (Verbose || WizardMode)) {
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
561 if (msg() == NULL) {
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
562 set_msg("OK");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
563 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
564 tty->print(" OldInlining= %4s : %s\n WCI=",
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
565 old_cold ? "cold" : "hot", msg());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
566 wci.print();
a61af66fc99e Initial load
duke
parents:
diff changeset
567 }
a61af66fc99e Initial load
duke
parents:
diff changeset
568 }
a61af66fc99e Initial load
duke
parents:
diff changeset
569 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
570 if (UseOldInlining) {
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
571 if (success) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
572 wci = *(WarmCallInfo::always_hot());
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
573 } else {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
574 wci = *(WarmCallInfo::always_cold());
7991
60bba1398c51 8005439: no message about inline method if it specifed by CompileCommand
vlivanov
parents: 7473
diff changeset
575 }
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
576 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
577 if (!InlineWarmCalls) {
a61af66fc99e Initial load
duke
parents:
diff changeset
578 if (!wci.is_cold() && !wci.is_hot()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
579 // Do not inline the warm calls.
a61af66fc99e Initial load
duke
parents:
diff changeset
580 wci = *(WarmCallInfo::always_cold());
a61af66fc99e Initial load
duke
parents:
diff changeset
581 }
a61af66fc99e Initial load
duke
parents:
diff changeset
582 }
a61af66fc99e Initial load
duke
parents:
diff changeset
583
a61af66fc99e Initial load
duke
parents:
diff changeset
584 if (!wci.is_cold()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
585 // Inline!
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
586 if (msg() == NULL) {
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
587 set_msg("inline (hot)");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
588 }
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
589 print_inlining(callee_method, caller_bci, true /* success */);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
590 if (UseOldInlining)
a61af66fc99e Initial load
duke
parents:
diff changeset
591 build_inline_tree_for_callee(callee_method, jvms, caller_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
592 if (InlineWarmCalls && !wci.is_hot())
a61af66fc99e Initial load
duke
parents:
diff changeset
593 return new (C) WarmCallInfo(wci); // copy to heap
a61af66fc99e Initial load
duke
parents:
diff changeset
594 return WarmCallInfo::always_hot();
a61af66fc99e Initial load
duke
parents:
diff changeset
595 }
a61af66fc99e Initial load
duke
parents:
diff changeset
596
a61af66fc99e Initial load
duke
parents:
diff changeset
597 // Do not inline
8119
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
598 if (msg() == NULL) {
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
599 set_msg("too cold to inline");
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
600 }
133bf557ef77 8007439: C2: adding successful message of inlining
iignatyev
parents: 7991
diff changeset
601 print_inlining(callee_method, caller_bci, false /* !success */ );
0
a61af66fc99e Initial load
duke
parents:
diff changeset
602 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
603 }
a61af66fc99e Initial load
duke
parents:
diff changeset
604
a61af66fc99e Initial load
duke
parents:
diff changeset
605 //------------------------------compute_callee_frequency-----------------------
a61af66fc99e Initial load
duke
parents:
diff changeset
606 float InlineTree::compute_callee_frequency( int caller_bci ) const {
a61af66fc99e Initial load
duke
parents:
diff changeset
607 int count = method()->interpreter_call_site_count(caller_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
608 int invcnt = method()->interpreter_invocation_count();
a61af66fc99e Initial load
duke
parents:
diff changeset
609 float freq = (float)count/(float)invcnt;
a61af66fc99e Initial load
duke
parents:
diff changeset
610 // Call-site count / interpreter invocation count, scaled recursively.
a61af66fc99e Initial load
duke
parents:
diff changeset
611 // Always between 0.0 and 1.0. Represents the percentage of the method's
a61af66fc99e Initial load
duke
parents:
diff changeset
612 // total execution time used at this call site.
a61af66fc99e Initial load
duke
parents:
diff changeset
613
a61af66fc99e Initial load
duke
parents:
diff changeset
614 return freq;
a61af66fc99e Initial load
duke
parents:
diff changeset
615 }
a61af66fc99e Initial load
duke
parents:
diff changeset
616
a61af66fc99e Initial load
duke
parents:
diff changeset
617 //------------------------------build_inline_tree_for_callee-------------------
a61af66fc99e Initial load
duke
parents:
diff changeset
618 InlineTree *InlineTree::build_inline_tree_for_callee( ciMethod* callee_method, JVMState* caller_jvms, int caller_bci) {
a61af66fc99e Initial load
duke
parents:
diff changeset
619 float recur_frequency = _site_invoke_ratio * compute_callee_frequency(caller_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
620 // Attempt inlining.
a61af66fc99e Initial load
duke
parents:
diff changeset
621 InlineTree* old_ilt = callee_at(caller_bci, callee_method);
a61af66fc99e Initial load
duke
parents:
diff changeset
622 if (old_ilt != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
623 return old_ilt;
a61af66fc99e Initial load
duke
parents:
diff changeset
624 }
3458
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
625 int max_inline_level_adjust = 0;
1157
c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
626 if (caller_jvms->method() != NULL) {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
627 if (caller_jvms->method()->is_compiled_lambda_form())
3458
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
628 max_inline_level_adjust += 1; // don't count actions in MH or indy adapter frames
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
629 else if (callee_method->is_method_handle_intrinsic() ||
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
630 callee_method->is_compiled_lambda_form()) {
3458
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
631 max_inline_level_adjust += 1; // don't count method handle calls from java.lang.invoke implem
1157
c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
632 }
3458
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
633 if (max_inline_level_adjust != 0 && PrintInlining && (Verbose || WizardMode)) {
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
634 CompileTask::print_inline_indent(inline_level());
3366
e2a92dd0d3d2 7042122: JSR 292: adjust various inline thresholds for JSR 292 API methods and method handle adapters
twisti
parents: 3345
diff changeset
635 tty->print_cr(" \\-> discounting inline depth");
1157
c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
636 }
3458
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
637 if (max_inline_level_adjust != 0 && C->log()) {
1157
c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
638 int id1 = C->log()->identify(caller_jvms->method());
c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
639 int id2 = C->log()->identify(callee_method);
3458
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
640 C->log()->elem("inline_level_discount caller='%d' callee='%d'", id1, id2);
1157
c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
641 }
c3b315a0d58a 6912063: inlining parameters need to be adjusted for some uses of the JVM
jrose
parents: 1138
diff changeset
642 }
3458
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
643 InlineTree* ilt = new InlineTree(C, this, callee_method, caller_jvms, caller_bci, recur_frequency, _max_inline_level + max_inline_level_adjust);
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
644 _subtrees.append(ilt);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
645
a61af66fc99e Initial load
duke
parents:
diff changeset
646 NOT_PRODUCT( _count_inlines += 1; )
a61af66fc99e Initial load
duke
parents:
diff changeset
647
a61af66fc99e Initial load
duke
parents:
diff changeset
648 return ilt;
a61af66fc99e Initial load
duke
parents:
diff changeset
649 }
a61af66fc99e Initial load
duke
parents:
diff changeset
650
a61af66fc99e Initial load
duke
parents:
diff changeset
651
a61af66fc99e Initial load
duke
parents:
diff changeset
652 //---------------------------------------callee_at-----------------------------
a61af66fc99e Initial load
duke
parents:
diff changeset
653 InlineTree *InlineTree::callee_at(int bci, ciMethod* callee) const {
a61af66fc99e Initial load
duke
parents:
diff changeset
654 for (int i = 0; i < _subtrees.length(); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
655 InlineTree* sub = _subtrees.at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
656 if (sub->caller_bci() == bci && callee == sub->method()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
657 return sub;
a61af66fc99e Initial load
duke
parents:
diff changeset
658 }
a61af66fc99e Initial load
duke
parents:
diff changeset
659 }
a61af66fc99e Initial load
duke
parents:
diff changeset
660 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
661 }
a61af66fc99e Initial load
duke
parents:
diff changeset
662
a61af66fc99e Initial load
duke
parents:
diff changeset
663
a61af66fc99e Initial load
duke
parents:
diff changeset
664 //------------------------------build_inline_tree_root-------------------------
a61af66fc99e Initial load
duke
parents:
diff changeset
665 InlineTree *InlineTree::build_inline_tree_root() {
a61af66fc99e Initial load
duke
parents:
diff changeset
666 Compile* C = Compile::current();
a61af66fc99e Initial load
duke
parents:
diff changeset
667
a61af66fc99e Initial load
duke
parents:
diff changeset
668 // Root of inline tree
3458
393e144bb99b 7057587: JSR 292 - crash with jruby in test/test_respond_to.rb
never
parents: 3366
diff changeset
669 InlineTree* ilt = new InlineTree(C, NULL, C->method(), NULL, -1, 1.0F, MaxInlineLevel);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
670
a61af66fc99e Initial load
duke
parents:
diff changeset
671 return ilt;
a61af66fc99e Initial load
duke
parents:
diff changeset
672 }
a61af66fc99e Initial load
duke
parents:
diff changeset
673
a61af66fc99e Initial load
duke
parents:
diff changeset
674
a61af66fc99e Initial load
duke
parents:
diff changeset
675 //-------------------------find_subtree_from_root-----------------------------
a61af66fc99e Initial load
duke
parents:
diff changeset
676 // Given a jvms, which determines a call chain from the root method,
a61af66fc99e Initial load
duke
parents:
diff changeset
677 // find the corresponding inline tree.
a61af66fc99e Initial load
duke
parents:
diff changeset
678 // Note: This method will be removed or replaced as InlineTree goes away.
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
679 InlineTree* InlineTree::find_subtree_from_root(InlineTree* root, JVMState* jvms, ciMethod* callee) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
680 InlineTree* iltp = root;
a61af66fc99e Initial load
duke
parents:
diff changeset
681 uint depth = jvms && jvms->has_method() ? jvms->depth() : 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
682 for (uint d = 1; d <= depth; d++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
683 JVMState* jvmsp = jvms->of_depth(d);
a61af66fc99e Initial load
duke
parents:
diff changeset
684 // Select the corresponding subtree for this bci.
a61af66fc99e Initial load
duke
parents:
diff changeset
685 assert(jvmsp->method() == iltp->method(), "tree still in sync");
a61af66fc99e Initial load
duke
parents:
diff changeset
686 ciMethod* d_callee = (d == depth) ? callee : jvms->of_depth(d+1)->method();
a61af66fc99e Initial load
duke
parents:
diff changeset
687 InlineTree* sub = iltp->callee_at(jvmsp->bci(), d_callee);
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
688 if (sub == NULL) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
689 if (d == depth) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
690 sub = iltp->build_inline_tree_for_callee(d_callee, jvmsp, jvmsp->bci());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
691 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
692 guarantee(sub != NULL, "should be a sub-ilt here");
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5950
diff changeset
693 return sub;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
694 }
a61af66fc99e Initial load
duke
parents:
diff changeset
695 iltp = sub;
a61af66fc99e Initial load
duke
parents:
diff changeset
696 }
a61af66fc99e Initial load
duke
parents:
diff changeset
697 return iltp;
a61af66fc99e Initial load
duke
parents:
diff changeset
698 }
3939
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
699
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
700
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
701
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
702 #ifndef PRODUCT
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
703 void InlineTree::print_impl(outputStream* st, int indent) const {
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
704 for (int i = 0; i < indent; i++) st->print(" ");
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
705 st->print(" @ %d ", caller_bci());
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
706 method()->print_short_name(st);
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
707 st->cr();
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
708
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
709 for (int i = 0 ; i < _subtrees.length(); i++) {
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
710 _subtrees.at(i)->print_impl(st, indent + 2);
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
711 }
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
712 }
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
713
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
714 void InlineTree::print_value_on(outputStream* st) const {
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
715 print_impl(st, 2);
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
716 }
f6f3bb0ee072 7088955: add C2 IR support to the SA
never
parents: 3905
diff changeset
717 #endif