annotate src/share/vm/c1/c1_GraphBuilder.cpp @ 1791:3a294e483abc

6919069: client compiler needs to capture more profile information for tiered work Summary: Added profiling of instanceof and aastore. Reviewed-by: kvn, jrose, never
author iveresov
date Mon, 13 Sep 2010 12:10:49 -0700
parents d5d065957597
children f02a8bbe6ed4
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1 /*
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2 * Copyright (c) 1999, 2010, 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 "incls/_precompiled.incl"
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26 #include "incls/_c1_GraphBuilder.cpp.incl"
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27
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28 class BlockListBuilder VALUE_OBJ_CLASS_SPEC {
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29 private:
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30 Compilation* _compilation;
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31 IRScope* _scope;
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32
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33 BlockList _blocks; // internal list of all blocks
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34 BlockList* _bci2block; // mapping from bci to blocks for GraphBuilder
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35
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36 // fields used by mark_loops
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37 BitMap _active; // for iteration of control flow graph
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38 BitMap _visited; // for iteration of control flow graph
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39 intArray _loop_map; // caches the information if a block is contained in a loop
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40 int _next_loop_index; // next free loop number
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41 int _next_block_number; // for reverse postorder numbering of blocks
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42
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43 // accessors
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44 Compilation* compilation() const { return _compilation; }
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45 IRScope* scope() const { return _scope; }
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46 ciMethod* method() const { return scope()->method(); }
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47 XHandlers* xhandlers() const { return scope()->xhandlers(); }
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48
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49 // unified bailout support
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50 void bailout(const char* msg) const { compilation()->bailout(msg); }
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51 bool bailed_out() const { return compilation()->bailed_out(); }
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52
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53 // helper functions
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54 BlockBegin* make_block_at(int bci, BlockBegin* predecessor);
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55 void handle_exceptions(BlockBegin* current, int cur_bci);
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56 void handle_jsr(BlockBegin* current, int sr_bci, int next_bci);
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57 void store_one(BlockBegin* current, int local);
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58 void store_two(BlockBegin* current, int local);
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59 void set_entries(int osr_bci);
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60 void set_leaders();
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61
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62 void make_loop_header(BlockBegin* block);
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63 void mark_loops();
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64 int mark_loops(BlockBegin* b, bool in_subroutine);
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65
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66 // debugging
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67 #ifndef PRODUCT
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68 void print();
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69 #endif
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70
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71 public:
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72 // creation
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73 BlockListBuilder(Compilation* compilation, IRScope* scope, int osr_bci);
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74
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75 // accessors for GraphBuilder
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76 BlockList* bci2block() const { return _bci2block; }
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77 };
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78
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79
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80 // Implementation of BlockListBuilder
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81
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82 BlockListBuilder::BlockListBuilder(Compilation* compilation, IRScope* scope, int osr_bci)
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83 : _compilation(compilation)
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84 , _scope(scope)
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85 , _blocks(16)
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86 , _bci2block(new BlockList(scope->method()->code_size(), NULL))
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87 , _next_block_number(0)
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88 , _active() // size not known yet
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89 , _visited() // size not known yet
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90 , _next_loop_index(0)
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91 , _loop_map() // size not known yet
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92 {
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93 set_entries(osr_bci);
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94 set_leaders();
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95 CHECK_BAILOUT();
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96
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97 mark_loops();
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98 NOT_PRODUCT(if (PrintInitialBlockList) print());
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99
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100 #ifndef PRODUCT
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101 if (PrintCFGToFile) {
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102 stringStream title;
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103 title.print("BlockListBuilder ");
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104 scope->method()->print_name(&title);
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105 CFGPrinter::print_cfg(_bci2block, title.as_string(), false, false);
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106 }
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107 #endif
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108 }
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109
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110
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111 void BlockListBuilder::set_entries(int osr_bci) {
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112 // generate start blocks
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113 BlockBegin* std_entry = make_block_at(0, NULL);
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114 if (scope()->caller() == NULL) {
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115 std_entry->set(BlockBegin::std_entry_flag);
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116 }
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117 if (osr_bci != -1) {
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118 BlockBegin* osr_entry = make_block_at(osr_bci, NULL);
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119 osr_entry->set(BlockBegin::osr_entry_flag);
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120 }
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121
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122 // generate exception entry blocks
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123 XHandlers* list = xhandlers();
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124 const int n = list->length();
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125 for (int i = 0; i < n; i++) {
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126 XHandler* h = list->handler_at(i);
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127 BlockBegin* entry = make_block_at(h->handler_bci(), NULL);
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128 entry->set(BlockBegin::exception_entry_flag);
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129 h->set_entry_block(entry);
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130 }
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131 }
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132
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133
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134 BlockBegin* BlockListBuilder::make_block_at(int cur_bci, BlockBegin* predecessor) {
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135 assert(method()->bci_block_start().at(cur_bci), "wrong block starts of MethodLivenessAnalyzer");
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136
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137 BlockBegin* block = _bci2block->at(cur_bci);
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138 if (block == NULL) {
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139 block = new BlockBegin(cur_bci);
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140 block->init_stores_to_locals(method()->max_locals());
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141 _bci2block->at_put(cur_bci, block);
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142 _blocks.append(block);
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143
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144 assert(predecessor == NULL || predecessor->bci() < cur_bci, "targets for backward branches must already exist");
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145 }
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146
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147 if (predecessor != NULL) {
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148 if (block->is_set(BlockBegin::exception_entry_flag)) {
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149 BAILOUT_("Exception handler can be reached by both normal and exceptional control flow", block);
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150 }
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151
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152 predecessor->add_successor(block);
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153 block->increment_total_preds();
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154 }
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155
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156 return block;
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157 }
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158
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159
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160 inline void BlockListBuilder::store_one(BlockBegin* current, int local) {
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161 current->stores_to_locals().set_bit(local);
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162 }
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163 inline void BlockListBuilder::store_two(BlockBegin* current, int local) {
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164 store_one(current, local);
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165 store_one(current, local + 1);
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166 }
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167
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168
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169 void BlockListBuilder::handle_exceptions(BlockBegin* current, int cur_bci) {
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170 // Draws edges from a block to its exception handlers
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171 XHandlers* list = xhandlers();
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172 const int n = list->length();
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173
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174 for (int i = 0; i < n; i++) {
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175 XHandler* h = list->handler_at(i);
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176
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177 if (h->covers(cur_bci)) {
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178 BlockBegin* entry = h->entry_block();
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179 assert(entry != NULL && entry == _bci2block->at(h->handler_bci()), "entry must be set");
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180 assert(entry->is_set(BlockBegin::exception_entry_flag), "flag must be set");
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181
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182 // add each exception handler only once
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183 if (!current->is_successor(entry)) {
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184 current->add_successor(entry);
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185 entry->increment_total_preds();
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186 }
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187
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188 // stop when reaching catchall
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189 if (h->catch_type() == 0) break;
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190 }
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191 }
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192 }
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193
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194 void BlockListBuilder::handle_jsr(BlockBegin* current, int sr_bci, int next_bci) {
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195 // start a new block after jsr-bytecode and link this block into cfg
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196 make_block_at(next_bci, current);
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197
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198 // start a new block at the subroutine entry at mark it with special flag
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199 BlockBegin* sr_block = make_block_at(sr_bci, current);
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200 if (!sr_block->is_set(BlockBegin::subroutine_entry_flag)) {
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201 sr_block->set(BlockBegin::subroutine_entry_flag);
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202 }
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203 }
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204
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205
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206 void BlockListBuilder::set_leaders() {
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207 bool has_xhandlers = xhandlers()->has_handlers();
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208 BlockBegin* current = NULL;
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209
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210 // The information which bci starts a new block simplifies the analysis
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211 // Without it, backward branches could jump to a bci where no block was created
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212 // during bytecode iteration. This would require the creation of a new block at the
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213 // branch target and a modification of the successor lists.
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214 BitMap bci_block_start = method()->bci_block_start();
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215
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216 ciBytecodeStream s(method());
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217 while (s.next() != ciBytecodeStream::EOBC()) {
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218 int cur_bci = s.cur_bci();
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219
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220 if (bci_block_start.at(cur_bci)) {
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221 current = make_block_at(cur_bci, current);
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222 }
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223 assert(current != NULL, "must have current block");
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parents:
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224
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225 if (has_xhandlers && GraphBuilder::can_trap(method(), s.cur_bc())) {
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226 handle_exceptions(current, cur_bci);
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parents:
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227 }
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228
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229 switch (s.cur_bc()) {
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230 // track stores to local variables for selective creation of phi functions
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231 case Bytecodes::_iinc: store_one(current, s.get_index()); break;
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232 case Bytecodes::_istore: store_one(current, s.get_index()); break;
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233 case Bytecodes::_lstore: store_two(current, s.get_index()); break;
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parents:
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234 case Bytecodes::_fstore: store_one(current, s.get_index()); break;
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parents:
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235 case Bytecodes::_dstore: store_two(current, s.get_index()); break;
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parents:
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236 case Bytecodes::_astore: store_one(current, s.get_index()); break;
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parents:
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237 case Bytecodes::_istore_0: store_one(current, 0); break;
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parents:
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238 case Bytecodes::_istore_1: store_one(current, 1); break;
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parents:
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239 case Bytecodes::_istore_2: store_one(current, 2); break;
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240 case Bytecodes::_istore_3: store_one(current, 3); break;
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241 case Bytecodes::_lstore_0: store_two(current, 0); break;
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parents:
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242 case Bytecodes::_lstore_1: store_two(current, 1); break;
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243 case Bytecodes::_lstore_2: store_two(current, 2); break;
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244 case Bytecodes::_lstore_3: store_two(current, 3); break;
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245 case Bytecodes::_fstore_0: store_one(current, 0); break;
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246 case Bytecodes::_fstore_1: store_one(current, 1); break;
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247 case Bytecodes::_fstore_2: store_one(current, 2); break;
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248 case Bytecodes::_fstore_3: store_one(current, 3); break;
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249 case Bytecodes::_dstore_0: store_two(current, 0); break;
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250 case Bytecodes::_dstore_1: store_two(current, 1); break;
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251 case Bytecodes::_dstore_2: store_two(current, 2); break;
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252 case Bytecodes::_dstore_3: store_two(current, 3); break;
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253 case Bytecodes::_astore_0: store_one(current, 0); break;
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254 case Bytecodes::_astore_1: store_one(current, 1); break;
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255 case Bytecodes::_astore_2: store_one(current, 2); break;
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256 case Bytecodes::_astore_3: store_one(current, 3); break;
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257
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258 // track bytecodes that affect the control flow
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259 case Bytecodes::_athrow: // fall through
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260 case Bytecodes::_ret: // fall through
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261 case Bytecodes::_ireturn: // fall through
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262 case Bytecodes::_lreturn: // fall through
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263 case Bytecodes::_freturn: // fall through
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264 case Bytecodes::_dreturn: // fall through
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265 case Bytecodes::_areturn: // fall through
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266 case Bytecodes::_return:
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267 current = NULL;
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268 break;
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269
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270 case Bytecodes::_ifeq: // fall through
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271 case Bytecodes::_ifne: // fall through
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272 case Bytecodes::_iflt: // fall through
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273 case Bytecodes::_ifge: // fall through
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parents:
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274 case Bytecodes::_ifgt: // fall through
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parents:
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275 case Bytecodes::_ifle: // fall through
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276 case Bytecodes::_if_icmpeq: // fall through
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277 case Bytecodes::_if_icmpne: // fall through
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278 case Bytecodes::_if_icmplt: // fall through
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279 case Bytecodes::_if_icmpge: // fall through
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280 case Bytecodes::_if_icmpgt: // fall through
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parents:
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281 case Bytecodes::_if_icmple: // fall through
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282 case Bytecodes::_if_acmpeq: // fall through
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283 case Bytecodes::_if_acmpne: // fall through
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284 case Bytecodes::_ifnull: // fall through
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285 case Bytecodes::_ifnonnull:
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286 make_block_at(s.next_bci(), current);
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287 make_block_at(s.get_dest(), current);
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288 current = NULL;
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289 break;
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290
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parents:
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291 case Bytecodes::_goto:
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parents:
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292 make_block_at(s.get_dest(), current);
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293 current = NULL;
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294 break;
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295
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296 case Bytecodes::_goto_w:
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297 make_block_at(s.get_far_dest(), current);
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298 current = NULL;
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299 break;
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300
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301 case Bytecodes::_jsr:
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302 handle_jsr(current, s.get_dest(), s.next_bci());
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303 current = NULL;
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304 break;
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305
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parents:
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306 case Bytecodes::_jsr_w:
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307 handle_jsr(current, s.get_far_dest(), s.next_bci());
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308 current = NULL;
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309 break;
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310
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311 case Bytecodes::_tableswitch: {
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parents:
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312 // set block for each case
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313 Bytecode_tableswitch *switch_ = Bytecode_tableswitch_at(s.cur_bcp());
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314 int l = switch_->length();
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parents:
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315 for (int i = 0; i < l; i++) {
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parents:
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316 make_block_at(cur_bci + switch_->dest_offset_at(i), current);
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parents:
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317 }
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318 make_block_at(cur_bci + switch_->default_offset(), current);
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319 current = NULL;
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320 break;
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321 }
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322
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323 case Bytecodes::_lookupswitch: {
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324 // set block for each case
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325 Bytecode_lookupswitch *switch_ = Bytecode_lookupswitch_at(s.cur_bcp());
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326 int l = switch_->number_of_pairs();
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parents:
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327 for (int i = 0; i < l; i++) {
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328 make_block_at(cur_bci + switch_->pair_at(i)->offset(), current);
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329 }
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330 make_block_at(cur_bci + switch_->default_offset(), current);
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331 current = NULL;
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332 break;
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parents:
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333 }
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334 }
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parents:
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335 }
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parents:
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336 }
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parents:
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337
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parents:
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338
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339 void BlockListBuilder::mark_loops() {
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diff changeset
340 ResourceMark rm;
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341
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342 _active = BitMap(BlockBegin::number_of_blocks()); _active.clear();
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343 _visited = BitMap(BlockBegin::number_of_blocks()); _visited.clear();
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344 _loop_map = intArray(BlockBegin::number_of_blocks(), 0);
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345 _next_loop_index = 0;
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346 _next_block_number = _blocks.length();
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347
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348 // recursively iterate the control flow graph
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349 mark_loops(_bci2block->at(0), false);
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350 assert(_next_block_number >= 0, "invalid block numbers");
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351 }
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352
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353 void BlockListBuilder::make_loop_header(BlockBegin* block) {
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parents:
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354 if (block->is_set(BlockBegin::exception_entry_flag)) {
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parents:
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355 // exception edges may look like loops but don't mark them as such
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parents:
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356 // since it screws up block ordering.
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357 return;
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parents:
diff changeset
358 }
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parents:
diff changeset
359 if (!block->is_set(BlockBegin::parser_loop_header_flag)) {
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parents:
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360 block->set(BlockBegin::parser_loop_header_flag);
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parents:
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361
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parents:
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362 assert(_loop_map.at(block->block_id()) == 0, "must not be set yet");
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parents:
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363 assert(0 <= _next_loop_index && _next_loop_index < BitsPerInt, "_next_loop_index is used as a bit-index in integer");
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parents:
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364 _loop_map.at_put(block->block_id(), 1 << _next_loop_index);
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parents:
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365 if (_next_loop_index < 31) _next_loop_index++;
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parents:
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366 } else {
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parents:
diff changeset
367 // block already marked as loop header
1060
323bd24c6520 6769124: various 64-bit fixes for c1
roland
parents: 989
diff changeset
368 assert(is_power_of_2((unsigned int)_loop_map.at(block->block_id())), "exactly one bit must be set");
0
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parents:
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369 }
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parents:
diff changeset
370 }
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parents:
diff changeset
371
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parents:
diff changeset
372 int BlockListBuilder::mark_loops(BlockBegin* block, bool in_subroutine) {
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373 int block_id = block->block_id();
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parents:
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374
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parents:
diff changeset
375 if (_visited.at(block_id)) {
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parents:
diff changeset
376 if (_active.at(block_id)) {
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parents:
diff changeset
377 // reached block via backward branch
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parents:
diff changeset
378 make_loop_header(block);
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parents:
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379 }
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parents:
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380 // return cached loop information for this block
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parents:
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381 return _loop_map.at(block_id);
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parents:
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382 }
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parents:
diff changeset
383
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parents:
diff changeset
384 if (block->is_set(BlockBegin::subroutine_entry_flag)) {
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parents:
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385 in_subroutine = true;
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parents:
diff changeset
386 }
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parents:
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387
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parents:
diff changeset
388 // set active and visited bits before successors are processed
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parents:
diff changeset
389 _visited.set_bit(block_id);
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parents:
diff changeset
390 _active.set_bit(block_id);
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parents:
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391
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parents:
diff changeset
392 intptr_t loop_state = 0;
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parents:
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393 for (int i = block->number_of_sux() - 1; i >= 0; i--) {
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parents:
diff changeset
394 // recursively process all successors
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parents:
diff changeset
395 loop_state |= mark_loops(block->sux_at(i), in_subroutine);
a61af66fc99e Initial load
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parents:
diff changeset
396 }
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parents:
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397
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parents:
diff changeset
398 // clear active-bit after all successors are processed
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parents:
diff changeset
399 _active.clear_bit(block_id);
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parents:
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400
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parents:
diff changeset
401 // reverse-post-order numbering of all blocks
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parents:
diff changeset
402 block->set_depth_first_number(_next_block_number);
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parents:
diff changeset
403 _next_block_number--;
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parents:
diff changeset
404
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parents:
diff changeset
405 if (loop_state != 0 || in_subroutine ) {
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parents:
diff changeset
406 // block is contained at least in one loop, so phi functions are necessary
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parents:
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407 // phi functions are also necessary for all locals stored in a subroutine
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parents:
diff changeset
408 scope()->requires_phi_function().set_union(block->stores_to_locals());
a61af66fc99e Initial load
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parents:
diff changeset
409 }
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parents:
diff changeset
410
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parents:
diff changeset
411 if (block->is_set(BlockBegin::parser_loop_header_flag)) {
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parents:
diff changeset
412 int header_loop_state = _loop_map.at(block_id);
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parents:
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413 assert(is_power_of_2((unsigned)header_loop_state), "exactly one bit must be set");
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parents:
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414
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parents:
diff changeset
415 // If the highest bit is set (i.e. when integer value is negative), the method
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parents:
diff changeset
416 // has 32 or more loops. This bit is never cleared because it is used for multiple loops
a61af66fc99e Initial load
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parents:
diff changeset
417 if (header_loop_state >= 0) {
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parents:
diff changeset
418 clear_bits(loop_state, header_loop_state);
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parents:
diff changeset
419 }
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parents:
diff changeset
420 }
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parents:
diff changeset
421
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parents:
diff changeset
422 // cache and return loop information for this block
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parents:
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423 _loop_map.at_put(block_id, loop_state);
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parents:
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424 return loop_state;
a61af66fc99e Initial load
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parents:
diff changeset
425 }
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parents:
diff changeset
426
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parents:
diff changeset
427
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parents:
diff changeset
428 #ifndef PRODUCT
a61af66fc99e Initial load
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parents:
diff changeset
429
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parents:
diff changeset
430 int compare_depth_first(BlockBegin** a, BlockBegin** b) {
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parents:
diff changeset
431 return (*a)->depth_first_number() - (*b)->depth_first_number();
a61af66fc99e Initial load
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parents:
diff changeset
432 }
a61af66fc99e Initial load
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parents:
diff changeset
433
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parents:
diff changeset
434 void BlockListBuilder::print() {
a61af66fc99e Initial load
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parents:
diff changeset
435 tty->print("----- initial block list of BlockListBuilder for method ");
a61af66fc99e Initial load
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parents:
diff changeset
436 method()->print_short_name();
a61af66fc99e Initial load
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parents:
diff changeset
437 tty->cr();
a61af66fc99e Initial load
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parents:
diff changeset
438
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parents:
diff changeset
439 // better readability if blocks are sorted in processing order
a61af66fc99e Initial load
duke
parents:
diff changeset
440 _blocks.sort(compare_depth_first);
a61af66fc99e Initial load
duke
parents:
diff changeset
441
a61af66fc99e Initial load
duke
parents:
diff changeset
442 for (int i = 0; i < _blocks.length(); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
443 BlockBegin* cur = _blocks.at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
444 tty->print("%4d: B%-4d bci: %-4d preds: %-4d ", cur->depth_first_number(), cur->block_id(), cur->bci(), cur->total_preds());
a61af66fc99e Initial load
duke
parents:
diff changeset
445
a61af66fc99e Initial load
duke
parents:
diff changeset
446 tty->print(cur->is_set(BlockBegin::std_entry_flag) ? " std" : " ");
a61af66fc99e Initial load
duke
parents:
diff changeset
447 tty->print(cur->is_set(BlockBegin::osr_entry_flag) ? " osr" : " ");
a61af66fc99e Initial load
duke
parents:
diff changeset
448 tty->print(cur->is_set(BlockBegin::exception_entry_flag) ? " ex" : " ");
a61af66fc99e Initial load
duke
parents:
diff changeset
449 tty->print(cur->is_set(BlockBegin::subroutine_entry_flag) ? " sr" : " ");
a61af66fc99e Initial load
duke
parents:
diff changeset
450 tty->print(cur->is_set(BlockBegin::parser_loop_header_flag) ? " lh" : " ");
a61af66fc99e Initial load
duke
parents:
diff changeset
451
a61af66fc99e Initial load
duke
parents:
diff changeset
452 if (cur->number_of_sux() > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
453 tty->print(" sux: ");
a61af66fc99e Initial load
duke
parents:
diff changeset
454 for (int j = 0; j < cur->number_of_sux(); j++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
455 BlockBegin* sux = cur->sux_at(j);
a61af66fc99e Initial load
duke
parents:
diff changeset
456 tty->print("B%d ", sux->block_id());
a61af66fc99e Initial load
duke
parents:
diff changeset
457 }
a61af66fc99e Initial load
duke
parents:
diff changeset
458 }
a61af66fc99e Initial load
duke
parents:
diff changeset
459 tty->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
460 }
a61af66fc99e Initial load
duke
parents:
diff changeset
461 }
a61af66fc99e Initial load
duke
parents:
diff changeset
462
a61af66fc99e Initial load
duke
parents:
diff changeset
463 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
464
a61af66fc99e Initial load
duke
parents:
diff changeset
465
a61af66fc99e Initial load
duke
parents:
diff changeset
466 // A simple growable array of Values indexed by ciFields
a61af66fc99e Initial load
duke
parents:
diff changeset
467 class FieldBuffer: public CompilationResourceObj {
a61af66fc99e Initial load
duke
parents:
diff changeset
468 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
469 GrowableArray<Value> _values;
a61af66fc99e Initial load
duke
parents:
diff changeset
470
a61af66fc99e Initial load
duke
parents:
diff changeset
471 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
472 FieldBuffer() {}
a61af66fc99e Initial load
duke
parents:
diff changeset
473
a61af66fc99e Initial load
duke
parents:
diff changeset
474 void kill() {
a61af66fc99e Initial load
duke
parents:
diff changeset
475 _values.trunc_to(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
476 }
a61af66fc99e Initial load
duke
parents:
diff changeset
477
a61af66fc99e Initial load
duke
parents:
diff changeset
478 Value at(ciField* field) {
a61af66fc99e Initial load
duke
parents:
diff changeset
479 assert(field->holder()->is_loaded(), "must be a loaded field");
a61af66fc99e Initial load
duke
parents:
diff changeset
480 int offset = field->offset();
a61af66fc99e Initial load
duke
parents:
diff changeset
481 if (offset < _values.length()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
482 return _values.at(offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
483 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
484 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
485 }
a61af66fc99e Initial load
duke
parents:
diff changeset
486 }
a61af66fc99e Initial load
duke
parents:
diff changeset
487
a61af66fc99e Initial load
duke
parents:
diff changeset
488 void at_put(ciField* field, Value value) {
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duke
parents:
diff changeset
489 assert(field->holder()->is_loaded(), "must be a loaded field");
a61af66fc99e Initial load
duke
parents:
diff changeset
490 int offset = field->offset();
a61af66fc99e Initial load
duke
parents:
diff changeset
491 _values.at_put_grow(offset, value, NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
492 }
a61af66fc99e Initial load
duke
parents:
diff changeset
493
a61af66fc99e Initial load
duke
parents:
diff changeset
494 };
a61af66fc99e Initial load
duke
parents:
diff changeset
495
a61af66fc99e Initial load
duke
parents:
diff changeset
496
a61af66fc99e Initial load
duke
parents:
diff changeset
497 // MemoryBuffer is fairly simple model of the current state of memory.
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duke
parents:
diff changeset
498 // It partitions memory into several pieces. The first piece is
a61af66fc99e Initial load
duke
parents:
diff changeset
499 // generic memory where little is known about the owner of the memory.
a61af66fc99e Initial load
duke
parents:
diff changeset
500 // This is conceptually represented by the tuple <O, F, V> which says
a61af66fc99e Initial load
duke
parents:
diff changeset
501 // that the field F of object O has value V. This is flattened so
a61af66fc99e Initial load
duke
parents:
diff changeset
502 // that F is represented by the offset of the field and the parallel
a61af66fc99e Initial load
duke
parents:
diff changeset
503 // arrays _objects and _values are used for O and V. Loads of O.F can
a61af66fc99e Initial load
duke
parents:
diff changeset
504 // simply use V. Newly allocated objects are kept in a separate list
a61af66fc99e Initial load
duke
parents:
diff changeset
505 // along with a parallel array for each object which represents the
a61af66fc99e Initial load
duke
parents:
diff changeset
506 // current value of its fields. Stores of the default value to fields
a61af66fc99e Initial load
duke
parents:
diff changeset
507 // which have never been stored to before are eliminated since they
a61af66fc99e Initial load
duke
parents:
diff changeset
508 // are redundant. Once newly allocated objects are stored into
a61af66fc99e Initial load
duke
parents:
diff changeset
509 // another object or they are passed out of the current compile they
a61af66fc99e Initial load
duke
parents:
diff changeset
510 // are treated like generic memory.
a61af66fc99e Initial load
duke
parents:
diff changeset
511
a61af66fc99e Initial load
duke
parents:
diff changeset
512 class MemoryBuffer: public CompilationResourceObj {
a61af66fc99e Initial load
duke
parents:
diff changeset
513 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
514 FieldBuffer _values;
a61af66fc99e Initial load
duke
parents:
diff changeset
515 GrowableArray<Value> _objects;
a61af66fc99e Initial load
duke
parents:
diff changeset
516 GrowableArray<Value> _newobjects;
a61af66fc99e Initial load
duke
parents:
diff changeset
517 GrowableArray<FieldBuffer*> _fields;
a61af66fc99e Initial load
duke
parents:
diff changeset
518
a61af66fc99e Initial load
duke
parents:
diff changeset
519 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
520 MemoryBuffer() {}
a61af66fc99e Initial load
duke
parents:
diff changeset
521
a61af66fc99e Initial load
duke
parents:
diff changeset
522 StoreField* store(StoreField* st) {
a61af66fc99e Initial load
duke
parents:
diff changeset
523 if (!EliminateFieldAccess) {
a61af66fc99e Initial load
duke
parents:
diff changeset
524 return st;
a61af66fc99e Initial load
duke
parents:
diff changeset
525 }
a61af66fc99e Initial load
duke
parents:
diff changeset
526
a61af66fc99e Initial load
duke
parents:
diff changeset
527 Value object = st->obj();
a61af66fc99e Initial load
duke
parents:
diff changeset
528 Value value = st->value();
a61af66fc99e Initial load
duke
parents:
diff changeset
529 ciField* field = st->field();
a61af66fc99e Initial load
duke
parents:
diff changeset
530 if (field->holder()->is_loaded()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
531 int offset = field->offset();
a61af66fc99e Initial load
duke
parents:
diff changeset
532 int index = _newobjects.find(object);
a61af66fc99e Initial load
duke
parents:
diff changeset
533 if (index != -1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
534 // newly allocated object with no other stores performed on this field
a61af66fc99e Initial load
duke
parents:
diff changeset
535 FieldBuffer* buf = _fields.at(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
536 if (buf->at(field) == NULL && is_default_value(value)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
537 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
538 if (PrintIRDuringConstruction && Verbose) {
a61af66fc99e Initial load
duke
parents:
diff changeset
539 tty->print_cr("Eliminated store for object %d:", index);
a61af66fc99e Initial load
duke
parents:
diff changeset
540 st->print_line();
a61af66fc99e Initial load
duke
parents:
diff changeset
541 }
a61af66fc99e Initial load
duke
parents:
diff changeset
542 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
543 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
544 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
545 buf->at_put(field, value);
a61af66fc99e Initial load
duke
parents:
diff changeset
546 }
a61af66fc99e Initial load
duke
parents:
diff changeset
547 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
548 _objects.at_put_grow(offset, object, NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
549 _values.at_put(field, value);
a61af66fc99e Initial load
duke
parents:
diff changeset
550 }
a61af66fc99e Initial load
duke
parents:
diff changeset
551
a61af66fc99e Initial load
duke
parents:
diff changeset
552 store_value(value);
a61af66fc99e Initial load
duke
parents:
diff changeset
553 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
554 // if we held onto field names we could alias based on names but
a61af66fc99e Initial load
duke
parents:
diff changeset
555 // we don't know what's being stored to so kill it all.
a61af66fc99e Initial load
duke
parents:
diff changeset
556 kill();
a61af66fc99e Initial load
duke
parents:
diff changeset
557 }
a61af66fc99e Initial load
duke
parents:
diff changeset
558 return st;
a61af66fc99e Initial load
duke
parents:
diff changeset
559 }
a61af66fc99e Initial load
duke
parents:
diff changeset
560
a61af66fc99e Initial load
duke
parents:
diff changeset
561
a61af66fc99e Initial load
duke
parents:
diff changeset
562 // return true if this value correspond to the default value of a field.
a61af66fc99e Initial load
duke
parents:
diff changeset
563 bool is_default_value(Value value) {
a61af66fc99e Initial load
duke
parents:
diff changeset
564 Constant* con = value->as_Constant();
a61af66fc99e Initial load
duke
parents:
diff changeset
565 if (con) {
a61af66fc99e Initial load
duke
parents:
diff changeset
566 switch (con->type()->tag()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
567 case intTag: return con->type()->as_IntConstant()->value() == 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
568 case longTag: return con->type()->as_LongConstant()->value() == 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
569 case floatTag: return jint_cast(con->type()->as_FloatConstant()->value()) == 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
570 case doubleTag: return jlong_cast(con->type()->as_DoubleConstant()->value()) == jlong_cast(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
571 case objectTag: return con->type() == objectNull;
a61af66fc99e Initial load
duke
parents:
diff changeset
572 default: ShouldNotReachHere();
a61af66fc99e Initial load
duke
parents:
diff changeset
573 }
a61af66fc99e Initial load
duke
parents:
diff changeset
574 }
a61af66fc99e Initial load
duke
parents:
diff changeset
575 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
576 }
a61af66fc99e Initial load
duke
parents:
diff changeset
577
a61af66fc99e Initial load
duke
parents:
diff changeset
578
a61af66fc99e Initial load
duke
parents:
diff changeset
579 // return either the actual value of a load or the load itself
a61af66fc99e Initial load
duke
parents:
diff changeset
580 Value load(LoadField* load) {
a61af66fc99e Initial load
duke
parents:
diff changeset
581 if (!EliminateFieldAccess) {
a61af66fc99e Initial load
duke
parents:
diff changeset
582 return load;
a61af66fc99e Initial load
duke
parents:
diff changeset
583 }
a61af66fc99e Initial load
duke
parents:
diff changeset
584
a61af66fc99e Initial load
duke
parents:
diff changeset
585 if (RoundFPResults && UseSSE < 2 && load->type()->is_float_kind()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
586 // can't skip load since value might get rounded as a side effect
a61af66fc99e Initial load
duke
parents:
diff changeset
587 return load;
a61af66fc99e Initial load
duke
parents:
diff changeset
588 }
a61af66fc99e Initial load
duke
parents:
diff changeset
589
a61af66fc99e Initial load
duke
parents:
diff changeset
590 ciField* field = load->field();
a61af66fc99e Initial load
duke
parents:
diff changeset
591 Value object = load->obj();
a61af66fc99e Initial load
duke
parents:
diff changeset
592 if (field->holder()->is_loaded() && !field->is_volatile()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
593 int offset = field->offset();
a61af66fc99e Initial load
duke
parents:
diff changeset
594 Value result = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
595 int index = _newobjects.find(object);
a61af66fc99e Initial load
duke
parents:
diff changeset
596 if (index != -1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
597 result = _fields.at(index)->at(field);
a61af66fc99e Initial load
duke
parents:
diff changeset
598 } else if (_objects.at_grow(offset, NULL) == object) {
a61af66fc99e Initial load
duke
parents:
diff changeset
599 result = _values.at(field);
a61af66fc99e Initial load
duke
parents:
diff changeset
600 }
a61af66fc99e Initial load
duke
parents:
diff changeset
601 if (result != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
602 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
603 if (PrintIRDuringConstruction && Verbose) {
a61af66fc99e Initial load
duke
parents:
diff changeset
604 tty->print_cr("Eliminated load: ");
a61af66fc99e Initial load
duke
parents:
diff changeset
605 load->print_line();
a61af66fc99e Initial load
duke
parents:
diff changeset
606 }
a61af66fc99e Initial load
duke
parents:
diff changeset
607 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
608 assert(result->type()->tag() == load->type()->tag(), "wrong types");
a61af66fc99e Initial load
duke
parents:
diff changeset
609 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
610 }
a61af66fc99e Initial load
duke
parents:
diff changeset
611 }
a61af66fc99e Initial load
duke
parents:
diff changeset
612 return load;
a61af66fc99e Initial load
duke
parents:
diff changeset
613 }
a61af66fc99e Initial load
duke
parents:
diff changeset
614
a61af66fc99e Initial load
duke
parents:
diff changeset
615 // Record this newly allocated object
a61af66fc99e Initial load
duke
parents:
diff changeset
616 void new_instance(NewInstance* object) {
a61af66fc99e Initial load
duke
parents:
diff changeset
617 int index = _newobjects.length();
a61af66fc99e Initial load
duke
parents:
diff changeset
618 _newobjects.append(object);
a61af66fc99e Initial load
duke
parents:
diff changeset
619 if (_fields.at_grow(index, NULL) == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
620 _fields.at_put(index, new FieldBuffer());
a61af66fc99e Initial load
duke
parents:
diff changeset
621 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
622 _fields.at(index)->kill();
a61af66fc99e Initial load
duke
parents:
diff changeset
623 }
a61af66fc99e Initial load
duke
parents:
diff changeset
624 }
a61af66fc99e Initial load
duke
parents:
diff changeset
625
a61af66fc99e Initial load
duke
parents:
diff changeset
626 void store_value(Value value) {
a61af66fc99e Initial load
duke
parents:
diff changeset
627 int index = _newobjects.find(value);
a61af66fc99e Initial load
duke
parents:
diff changeset
628 if (index != -1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
629 // stored a newly allocated object into another object.
a61af66fc99e Initial load
duke
parents:
diff changeset
630 // Assume we've lost track of it as separate slice of memory.
a61af66fc99e Initial load
duke
parents:
diff changeset
631 // We could do better by keeping track of whether individual
a61af66fc99e Initial load
duke
parents:
diff changeset
632 // fields could alias each other.
a61af66fc99e Initial load
duke
parents:
diff changeset
633 _newobjects.remove_at(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
634 // pull out the field info and store it at the end up the list
a61af66fc99e Initial load
duke
parents:
diff changeset
635 // of field info list to be reused later.
a61af66fc99e Initial load
duke
parents:
diff changeset
636 _fields.append(_fields.at(index));
a61af66fc99e Initial load
duke
parents:
diff changeset
637 _fields.remove_at(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
638 }
a61af66fc99e Initial load
duke
parents:
diff changeset
639 }
a61af66fc99e Initial load
duke
parents:
diff changeset
640
a61af66fc99e Initial load
duke
parents:
diff changeset
641 void kill() {
a61af66fc99e Initial load
duke
parents:
diff changeset
642 _newobjects.trunc_to(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
643 _objects.trunc_to(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
644 _values.kill();
a61af66fc99e Initial load
duke
parents:
diff changeset
645 }
a61af66fc99e Initial load
duke
parents:
diff changeset
646 };
a61af66fc99e Initial load
duke
parents:
diff changeset
647
a61af66fc99e Initial load
duke
parents:
diff changeset
648
a61af66fc99e Initial load
duke
parents:
diff changeset
649 // Implementation of GraphBuilder's ScopeData
a61af66fc99e Initial load
duke
parents:
diff changeset
650
a61af66fc99e Initial load
duke
parents:
diff changeset
651 GraphBuilder::ScopeData::ScopeData(ScopeData* parent)
a61af66fc99e Initial load
duke
parents:
diff changeset
652 : _parent(parent)
a61af66fc99e Initial load
duke
parents:
diff changeset
653 , _bci2block(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
654 , _scope(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
655 , _has_handler(false)
a61af66fc99e Initial load
duke
parents:
diff changeset
656 , _stream(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
657 , _work_list(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
658 , _parsing_jsr(false)
a61af66fc99e Initial load
duke
parents:
diff changeset
659 , _jsr_xhandlers(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
660 , _caller_stack_size(-1)
a61af66fc99e Initial load
duke
parents:
diff changeset
661 , _continuation(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
662 , _continuation_state(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
663 , _num_returns(0)
a61af66fc99e Initial load
duke
parents:
diff changeset
664 , _cleanup_block(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
665 , _cleanup_return_prev(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
666 , _cleanup_state(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
667 {
a61af66fc99e Initial load
duke
parents:
diff changeset
668 if (parent != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
669 _max_inline_size = (intx) ((float) NestedInliningSizeRatio * (float) parent->max_inline_size() / 100.0f);
a61af66fc99e Initial load
duke
parents:
diff changeset
670 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
671 _max_inline_size = MaxInlineSize;
a61af66fc99e Initial load
duke
parents:
diff changeset
672 }
a61af66fc99e Initial load
duke
parents:
diff changeset
673 if (_max_inline_size < MaxTrivialSize) {
a61af66fc99e Initial load
duke
parents:
diff changeset
674 _max_inline_size = MaxTrivialSize;
a61af66fc99e Initial load
duke
parents:
diff changeset
675 }
a61af66fc99e Initial load
duke
parents:
diff changeset
676 }
a61af66fc99e Initial load
duke
parents:
diff changeset
677
a61af66fc99e Initial load
duke
parents:
diff changeset
678
a61af66fc99e Initial load
duke
parents:
diff changeset
679 void GraphBuilder::kill_all() {
a61af66fc99e Initial load
duke
parents:
diff changeset
680 if (UseLocalValueNumbering) {
a61af66fc99e Initial load
duke
parents:
diff changeset
681 vmap()->kill_all();
a61af66fc99e Initial load
duke
parents:
diff changeset
682 }
a61af66fc99e Initial load
duke
parents:
diff changeset
683 _memory->kill();
a61af66fc99e Initial load
duke
parents:
diff changeset
684 }
a61af66fc99e Initial load
duke
parents:
diff changeset
685
a61af66fc99e Initial load
duke
parents:
diff changeset
686
a61af66fc99e Initial load
duke
parents:
diff changeset
687 BlockBegin* GraphBuilder::ScopeData::block_at(int bci) {
a61af66fc99e Initial load
duke
parents:
diff changeset
688 if (parsing_jsr()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
689 // It is necessary to clone all blocks associated with a
a61af66fc99e Initial load
duke
parents:
diff changeset
690 // subroutine, including those for exception handlers in the scope
a61af66fc99e Initial load
duke
parents:
diff changeset
691 // of the method containing the jsr (because those exception
a61af66fc99e Initial load
duke
parents:
diff changeset
692 // handlers may contain ret instructions in some cases).
a61af66fc99e Initial load
duke
parents:
diff changeset
693 BlockBegin* block = bci2block()->at(bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
694 if (block != NULL && block == parent()->bci2block()->at(bci)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
695 BlockBegin* new_block = new BlockBegin(block->bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
696 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
697 if (PrintInitialBlockList) {
a61af66fc99e Initial load
duke
parents:
diff changeset
698 tty->print_cr("CFG: cloned block %d (bci %d) as block %d for jsr",
a61af66fc99e Initial load
duke
parents:
diff changeset
699 block->block_id(), block->bci(), new_block->block_id());
a61af66fc99e Initial load
duke
parents:
diff changeset
700 }
a61af66fc99e Initial load
duke
parents:
diff changeset
701 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
702 // copy data from cloned blocked
a61af66fc99e Initial load
duke
parents:
diff changeset
703 new_block->set_depth_first_number(block->depth_first_number());
a61af66fc99e Initial load
duke
parents:
diff changeset
704 if (block->is_set(BlockBegin::parser_loop_header_flag)) new_block->set(BlockBegin::parser_loop_header_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
705 // Preserve certain flags for assertion checking
a61af66fc99e Initial load
duke
parents:
diff changeset
706 if (block->is_set(BlockBegin::subroutine_entry_flag)) new_block->set(BlockBegin::subroutine_entry_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
707 if (block->is_set(BlockBegin::exception_entry_flag)) new_block->set(BlockBegin::exception_entry_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
708
a61af66fc99e Initial load
duke
parents:
diff changeset
709 // copy was_visited_flag to allow early detection of bailouts
a61af66fc99e Initial load
duke
parents:
diff changeset
710 // if a block that is used in a jsr has already been visited before,
a61af66fc99e Initial load
duke
parents:
diff changeset
711 // it is shared between the normal control flow and a subroutine
a61af66fc99e Initial load
duke
parents:
diff changeset
712 // BlockBegin::try_merge returns false when the flag is set, this leads
a61af66fc99e Initial load
duke
parents:
diff changeset
713 // to a compilation bailout
a61af66fc99e Initial load
duke
parents:
diff changeset
714 if (block->is_set(BlockBegin::was_visited_flag)) new_block->set(BlockBegin::was_visited_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
715
a61af66fc99e Initial load
duke
parents:
diff changeset
716 bci2block()->at_put(bci, new_block);
a61af66fc99e Initial load
duke
parents:
diff changeset
717 block = new_block;
a61af66fc99e Initial load
duke
parents:
diff changeset
718 }
a61af66fc99e Initial load
duke
parents:
diff changeset
719 return block;
a61af66fc99e Initial load
duke
parents:
diff changeset
720 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
721 return bci2block()->at(bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
722 }
a61af66fc99e Initial load
duke
parents:
diff changeset
723 }
a61af66fc99e Initial load
duke
parents:
diff changeset
724
a61af66fc99e Initial load
duke
parents:
diff changeset
725
a61af66fc99e Initial load
duke
parents:
diff changeset
726 XHandlers* GraphBuilder::ScopeData::xhandlers() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
727 if (_jsr_xhandlers == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
728 assert(!parsing_jsr(), "");
a61af66fc99e Initial load
duke
parents:
diff changeset
729 return scope()->xhandlers();
a61af66fc99e Initial load
duke
parents:
diff changeset
730 }
a61af66fc99e Initial load
duke
parents:
diff changeset
731 assert(parsing_jsr(), "");
a61af66fc99e Initial load
duke
parents:
diff changeset
732 return _jsr_xhandlers;
a61af66fc99e Initial load
duke
parents:
diff changeset
733 }
a61af66fc99e Initial load
duke
parents:
diff changeset
734
a61af66fc99e Initial load
duke
parents:
diff changeset
735
a61af66fc99e Initial load
duke
parents:
diff changeset
736 void GraphBuilder::ScopeData::set_scope(IRScope* scope) {
a61af66fc99e Initial load
duke
parents:
diff changeset
737 _scope = scope;
a61af66fc99e Initial load
duke
parents:
diff changeset
738 bool parent_has_handler = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
739 if (parent() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
740 parent_has_handler = parent()->has_handler();
a61af66fc99e Initial load
duke
parents:
diff changeset
741 }
a61af66fc99e Initial load
duke
parents:
diff changeset
742 _has_handler = parent_has_handler || scope->xhandlers()->has_handlers();
a61af66fc99e Initial load
duke
parents:
diff changeset
743 }
a61af66fc99e Initial load
duke
parents:
diff changeset
744
a61af66fc99e Initial load
duke
parents:
diff changeset
745
a61af66fc99e Initial load
duke
parents:
diff changeset
746 void GraphBuilder::ScopeData::set_inline_cleanup_info(BlockBegin* block,
a61af66fc99e Initial load
duke
parents:
diff changeset
747 Instruction* return_prev,
a61af66fc99e Initial load
duke
parents:
diff changeset
748 ValueStack* return_state) {
a61af66fc99e Initial load
duke
parents:
diff changeset
749 _cleanup_block = block;
a61af66fc99e Initial load
duke
parents:
diff changeset
750 _cleanup_return_prev = return_prev;
a61af66fc99e Initial load
duke
parents:
diff changeset
751 _cleanup_state = return_state;
a61af66fc99e Initial load
duke
parents:
diff changeset
752 }
a61af66fc99e Initial load
duke
parents:
diff changeset
753
a61af66fc99e Initial load
duke
parents:
diff changeset
754
a61af66fc99e Initial load
duke
parents:
diff changeset
755 void GraphBuilder::ScopeData::add_to_work_list(BlockBegin* block) {
a61af66fc99e Initial load
duke
parents:
diff changeset
756 if (_work_list == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
757 _work_list = new BlockList();
a61af66fc99e Initial load
duke
parents:
diff changeset
758 }
a61af66fc99e Initial load
duke
parents:
diff changeset
759
a61af66fc99e Initial load
duke
parents:
diff changeset
760 if (!block->is_set(BlockBegin::is_on_work_list_flag)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
761 // Do not start parsing the continuation block while in a
a61af66fc99e Initial load
duke
parents:
diff changeset
762 // sub-scope
a61af66fc99e Initial load
duke
parents:
diff changeset
763 if (parsing_jsr()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
764 if (block == jsr_continuation()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
765 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
766 }
a61af66fc99e Initial load
duke
parents:
diff changeset
767 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
768 if (block == continuation()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
769 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
770 }
a61af66fc99e Initial load
duke
parents:
diff changeset
771 }
a61af66fc99e Initial load
duke
parents:
diff changeset
772 block->set(BlockBegin::is_on_work_list_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
773 _work_list->push(block);
a61af66fc99e Initial load
duke
parents:
diff changeset
774
a61af66fc99e Initial load
duke
parents:
diff changeset
775 sort_top_into_worklist(_work_list, block);
a61af66fc99e Initial load
duke
parents:
diff changeset
776 }
a61af66fc99e Initial load
duke
parents:
diff changeset
777 }
a61af66fc99e Initial load
duke
parents:
diff changeset
778
a61af66fc99e Initial load
duke
parents:
diff changeset
779
a61af66fc99e Initial load
duke
parents:
diff changeset
780 void GraphBuilder::sort_top_into_worklist(BlockList* worklist, BlockBegin* top) {
a61af66fc99e Initial load
duke
parents:
diff changeset
781 assert(worklist->top() == top, "");
a61af66fc99e Initial load
duke
parents:
diff changeset
782 // sort block descending into work list
a61af66fc99e Initial load
duke
parents:
diff changeset
783 const int dfn = top->depth_first_number();
a61af66fc99e Initial load
duke
parents:
diff changeset
784 assert(dfn != -1, "unknown depth first number");
a61af66fc99e Initial load
duke
parents:
diff changeset
785 int i = worklist->length()-2;
a61af66fc99e Initial load
duke
parents:
diff changeset
786 while (i >= 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
787 BlockBegin* b = worklist->at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
788 if (b->depth_first_number() < dfn) {
a61af66fc99e Initial load
duke
parents:
diff changeset
789 worklist->at_put(i+1, b);
a61af66fc99e Initial load
duke
parents:
diff changeset
790 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
791 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
792 }
a61af66fc99e Initial load
duke
parents:
diff changeset
793 i --;
a61af66fc99e Initial load
duke
parents:
diff changeset
794 }
a61af66fc99e Initial load
duke
parents:
diff changeset
795 if (i >= -1) worklist->at_put(i + 1, top);
a61af66fc99e Initial load
duke
parents:
diff changeset
796 }
a61af66fc99e Initial load
duke
parents:
diff changeset
797
a61af66fc99e Initial load
duke
parents:
diff changeset
798 int GraphBuilder::ScopeData::caller_stack_size() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
799 ValueStack* state = scope()->caller_state();
a61af66fc99e Initial load
duke
parents:
diff changeset
800 if (state == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
801 return 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
802 }
a61af66fc99e Initial load
duke
parents:
diff changeset
803 return state->stack_size();
a61af66fc99e Initial load
duke
parents:
diff changeset
804 }
a61af66fc99e Initial load
duke
parents:
diff changeset
805
a61af66fc99e Initial load
duke
parents:
diff changeset
806
a61af66fc99e Initial load
duke
parents:
diff changeset
807 BlockBegin* GraphBuilder::ScopeData::remove_from_work_list() {
a61af66fc99e Initial load
duke
parents:
diff changeset
808 if (is_work_list_empty()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
809 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
810 }
a61af66fc99e Initial load
duke
parents:
diff changeset
811 return _work_list->pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
812 }
a61af66fc99e Initial load
duke
parents:
diff changeset
813
a61af66fc99e Initial load
duke
parents:
diff changeset
814
a61af66fc99e Initial load
duke
parents:
diff changeset
815 bool GraphBuilder::ScopeData::is_work_list_empty() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
816 return (_work_list == NULL || _work_list->length() == 0);
a61af66fc99e Initial load
duke
parents:
diff changeset
817 }
a61af66fc99e Initial load
duke
parents:
diff changeset
818
a61af66fc99e Initial load
duke
parents:
diff changeset
819
a61af66fc99e Initial load
duke
parents:
diff changeset
820 void GraphBuilder::ScopeData::setup_jsr_xhandlers() {
a61af66fc99e Initial load
duke
parents:
diff changeset
821 assert(parsing_jsr(), "");
a61af66fc99e Initial load
duke
parents:
diff changeset
822 // clone all the exception handlers from the scope
a61af66fc99e Initial load
duke
parents:
diff changeset
823 XHandlers* handlers = new XHandlers(scope()->xhandlers());
a61af66fc99e Initial load
duke
parents:
diff changeset
824 const int n = handlers->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
825 for (int i = 0; i < n; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
826 // The XHandlers need to be adjusted to dispatch to the cloned
a61af66fc99e Initial load
duke
parents:
diff changeset
827 // handler block instead of the default one but the synthetic
a61af66fc99e Initial load
duke
parents:
diff changeset
828 // unlocker needs to be handled specially. The synthetic unlocker
a61af66fc99e Initial load
duke
parents:
diff changeset
829 // should be left alone since there can be only one and all code
a61af66fc99e Initial load
duke
parents:
diff changeset
830 // should dispatch to the same one.
a61af66fc99e Initial load
duke
parents:
diff changeset
831 XHandler* h = handlers->handler_at(i);
1378
9f5b60a14736 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 1295
diff changeset
832 assert(h->handler_bci() != SynchronizationEntryBCI, "must be real");
9f5b60a14736 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 1295
diff changeset
833 h->set_entry_block(block_at(h->handler_bci()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
834 }
a61af66fc99e Initial load
duke
parents:
diff changeset
835 _jsr_xhandlers = handlers;
a61af66fc99e Initial load
duke
parents:
diff changeset
836 }
a61af66fc99e Initial load
duke
parents:
diff changeset
837
a61af66fc99e Initial load
duke
parents:
diff changeset
838
a61af66fc99e Initial load
duke
parents:
diff changeset
839 int GraphBuilder::ScopeData::num_returns() {
a61af66fc99e Initial load
duke
parents:
diff changeset
840 if (parsing_jsr()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
841 return parent()->num_returns();
a61af66fc99e Initial load
duke
parents:
diff changeset
842 }
a61af66fc99e Initial load
duke
parents:
diff changeset
843 return _num_returns;
a61af66fc99e Initial load
duke
parents:
diff changeset
844 }
a61af66fc99e Initial load
duke
parents:
diff changeset
845
a61af66fc99e Initial load
duke
parents:
diff changeset
846
a61af66fc99e Initial load
duke
parents:
diff changeset
847 void GraphBuilder::ScopeData::incr_num_returns() {
a61af66fc99e Initial load
duke
parents:
diff changeset
848 if (parsing_jsr()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
849 parent()->incr_num_returns();
a61af66fc99e Initial load
duke
parents:
diff changeset
850 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
851 ++_num_returns;
a61af66fc99e Initial load
duke
parents:
diff changeset
852 }
a61af66fc99e Initial load
duke
parents:
diff changeset
853 }
a61af66fc99e Initial load
duke
parents:
diff changeset
854
a61af66fc99e Initial load
duke
parents:
diff changeset
855
a61af66fc99e Initial load
duke
parents:
diff changeset
856 // Implementation of GraphBuilder
a61af66fc99e Initial load
duke
parents:
diff changeset
857
a61af66fc99e Initial load
duke
parents:
diff changeset
858 #define INLINE_BAILOUT(msg) { inline_bailout(msg); return false; }
a61af66fc99e Initial load
duke
parents:
diff changeset
859
a61af66fc99e Initial load
duke
parents:
diff changeset
860
a61af66fc99e Initial load
duke
parents:
diff changeset
861 void GraphBuilder::load_constant() {
a61af66fc99e Initial load
duke
parents:
diff changeset
862 ciConstant con = stream()->get_constant();
a61af66fc99e Initial load
duke
parents:
diff changeset
863 if (con.basic_type() == T_ILLEGAL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
864 BAILOUT("could not resolve a constant");
a61af66fc99e Initial load
duke
parents:
diff changeset
865 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
866 ValueType* t = illegalType;
a61af66fc99e Initial load
duke
parents:
diff changeset
867 ValueStack* patch_state = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
868 switch (con.basic_type()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
869 case T_BOOLEAN: t = new IntConstant (con.as_boolean()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
870 case T_BYTE : t = new IntConstant (con.as_byte ()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
871 case T_CHAR : t = new IntConstant (con.as_char ()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
872 case T_SHORT : t = new IntConstant (con.as_short ()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
873 case T_INT : t = new IntConstant (con.as_int ()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
874 case T_LONG : t = new LongConstant (con.as_long ()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
875 case T_FLOAT : t = new FloatConstant (con.as_float ()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
876 case T_DOUBLE : t = new DoubleConstant (con.as_double ()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
877 case T_ARRAY : t = new ArrayConstant (con.as_object ()->as_array ()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
878 case T_OBJECT :
a61af66fc99e Initial load
duke
parents:
diff changeset
879 {
a61af66fc99e Initial load
duke
parents:
diff changeset
880 ciObject* obj = con.as_object();
1602
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1584
diff changeset
881 if (!obj->is_loaded()
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1584
diff changeset
882 || (PatchALot && obj->klass() != ciEnv::current()->String_klass())) {
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1584
diff changeset
883 patch_state = state()->copy();
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1584
diff changeset
884 t = new ObjectConstant(obj);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
885 } else {
1602
136b78722a08 6939203: JSR 292 needs method handle constants
jrose
parents: 1584
diff changeset
886 assert(!obj->is_klass(), "must be java_mirror of klass");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
887 t = new InstanceConstant(obj->as_instance());
a61af66fc99e Initial load
duke
parents:
diff changeset
888 }
a61af66fc99e Initial load
duke
parents:
diff changeset
889 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
890 }
a61af66fc99e Initial load
duke
parents:
diff changeset
891 default : ShouldNotReachHere();
a61af66fc99e Initial load
duke
parents:
diff changeset
892 }
a61af66fc99e Initial load
duke
parents:
diff changeset
893 Value x;
a61af66fc99e Initial load
duke
parents:
diff changeset
894 if (patch_state != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
895 x = new Constant(t, patch_state);
a61af66fc99e Initial load
duke
parents:
diff changeset
896 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
897 x = new Constant(t);
a61af66fc99e Initial load
duke
parents:
diff changeset
898 }
a61af66fc99e Initial load
duke
parents:
diff changeset
899 push(t, append(x));
a61af66fc99e Initial load
duke
parents:
diff changeset
900 }
a61af66fc99e Initial load
duke
parents:
diff changeset
901 }
a61af66fc99e Initial load
duke
parents:
diff changeset
902
a61af66fc99e Initial load
duke
parents:
diff changeset
903
a61af66fc99e Initial load
duke
parents:
diff changeset
904 void GraphBuilder::load_local(ValueType* type, int index) {
a61af66fc99e Initial load
duke
parents:
diff changeset
905 Value x = state()->load_local(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
906 push(type, x);
a61af66fc99e Initial load
duke
parents:
diff changeset
907 }
a61af66fc99e Initial load
duke
parents:
diff changeset
908
a61af66fc99e Initial load
duke
parents:
diff changeset
909
a61af66fc99e Initial load
duke
parents:
diff changeset
910 void GraphBuilder::store_local(ValueType* type, int index) {
a61af66fc99e Initial load
duke
parents:
diff changeset
911 Value x = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
912 store_local(state(), x, type, index);
a61af66fc99e Initial load
duke
parents:
diff changeset
913 }
a61af66fc99e Initial load
duke
parents:
diff changeset
914
a61af66fc99e Initial load
duke
parents:
diff changeset
915
a61af66fc99e Initial load
duke
parents:
diff changeset
916 void GraphBuilder::store_local(ValueStack* state, Value x, ValueType* type, int index) {
a61af66fc99e Initial load
duke
parents:
diff changeset
917 if (parsing_jsr()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
918 // We need to do additional tracking of the location of the return
a61af66fc99e Initial load
duke
parents:
diff changeset
919 // address for jsrs since we don't handle arbitrary jsr/ret
a61af66fc99e Initial load
duke
parents:
diff changeset
920 // constructs. Here we are figuring out in which circumstances we
a61af66fc99e Initial load
duke
parents:
diff changeset
921 // need to bail out.
a61af66fc99e Initial load
duke
parents:
diff changeset
922 if (x->type()->is_address()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
923 scope_data()->set_jsr_return_address_local(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
924
a61af66fc99e Initial load
duke
parents:
diff changeset
925 // Also check parent jsrs (if any) at this time to see whether
a61af66fc99e Initial load
duke
parents:
diff changeset
926 // they are using this local. We don't handle skipping over a
a61af66fc99e Initial load
duke
parents:
diff changeset
927 // ret.
a61af66fc99e Initial load
duke
parents:
diff changeset
928 for (ScopeData* cur_scope_data = scope_data()->parent();
a61af66fc99e Initial load
duke
parents:
diff changeset
929 cur_scope_data != NULL && cur_scope_data->parsing_jsr() && cur_scope_data->scope() == scope();
a61af66fc99e Initial load
duke
parents:
diff changeset
930 cur_scope_data = cur_scope_data->parent()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
931 if (cur_scope_data->jsr_return_address_local() == index) {
a61af66fc99e Initial load
duke
parents:
diff changeset
932 BAILOUT("subroutine overwrites return address from previous subroutine");
a61af66fc99e Initial load
duke
parents:
diff changeset
933 }
a61af66fc99e Initial load
duke
parents:
diff changeset
934 }
a61af66fc99e Initial load
duke
parents:
diff changeset
935 } else if (index == scope_data()->jsr_return_address_local()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
936 scope_data()->set_jsr_return_address_local(-1);
a61af66fc99e Initial load
duke
parents:
diff changeset
937 }
a61af66fc99e Initial load
duke
parents:
diff changeset
938 }
a61af66fc99e Initial load
duke
parents:
diff changeset
939
a61af66fc99e Initial load
duke
parents:
diff changeset
940 state->store_local(index, round_fp(x));
a61af66fc99e Initial load
duke
parents:
diff changeset
941 }
a61af66fc99e Initial load
duke
parents:
diff changeset
942
a61af66fc99e Initial load
duke
parents:
diff changeset
943
a61af66fc99e Initial load
duke
parents:
diff changeset
944 void GraphBuilder::load_indexed(BasicType type) {
a61af66fc99e Initial load
duke
parents:
diff changeset
945 Value index = ipop();
a61af66fc99e Initial load
duke
parents:
diff changeset
946 Value array = apop();
a61af66fc99e Initial load
duke
parents:
diff changeset
947 Value length = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
948 if (CSEArrayLength ||
a61af66fc99e Initial load
duke
parents:
diff changeset
949 (array->as_AccessField() && array->as_AccessField()->field()->is_constant()) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
950 (array->as_NewArray() && array->as_NewArray()->length() && array->as_NewArray()->length()->type()->is_constant())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
951 length = append(new ArrayLength(array, lock_stack()));
a61af66fc99e Initial load
duke
parents:
diff changeset
952 }
a61af66fc99e Initial load
duke
parents:
diff changeset
953 push(as_ValueType(type), append(new LoadIndexed(array, index, length, type, lock_stack())));
a61af66fc99e Initial load
duke
parents:
diff changeset
954 }
a61af66fc99e Initial load
duke
parents:
diff changeset
955
a61af66fc99e Initial load
duke
parents:
diff changeset
956
a61af66fc99e Initial load
duke
parents:
diff changeset
957 void GraphBuilder::store_indexed(BasicType type) {
a61af66fc99e Initial load
duke
parents:
diff changeset
958 Value value = pop(as_ValueType(type));
a61af66fc99e Initial load
duke
parents:
diff changeset
959 Value index = ipop();
a61af66fc99e Initial load
duke
parents:
diff changeset
960 Value array = apop();
a61af66fc99e Initial load
duke
parents:
diff changeset
961 Value length = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
962 if (CSEArrayLength ||
a61af66fc99e Initial load
duke
parents:
diff changeset
963 (array->as_AccessField() && array->as_AccessField()->field()->is_constant()) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
964 (array->as_NewArray() && array->as_NewArray()->length() && array->as_NewArray()->length()->type()->is_constant())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
965 length = append(new ArrayLength(array, lock_stack()));
a61af66fc99e Initial load
duke
parents:
diff changeset
966 }
a61af66fc99e Initial load
duke
parents:
diff changeset
967 StoreIndexed* result = new StoreIndexed(array, index, length, type, value, lock_stack());
a61af66fc99e Initial load
duke
parents:
diff changeset
968 append(result);
459
3a86a8dcf27c 6756768: C1 generates invalid code
never
parents: 0
diff changeset
969 _memory->store_value(value);
1791
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
970
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
971 if (type == T_OBJECT && is_profiling()) {
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
972 // Note that we'd collect profile data in this method if we wanted it.
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
973 compilation()->set_would_profile(true);
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
974
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
975 if (profile_checkcasts()) {
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
976 result->set_profiled_method(method());
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
977 result->set_profiled_bci(bci());
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
978 result->set_should_profile(true);
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
979 }
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
980 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
981 }
a61af66fc99e Initial load
duke
parents:
diff changeset
982
a61af66fc99e Initial load
duke
parents:
diff changeset
983
a61af66fc99e Initial load
duke
parents:
diff changeset
984 void GraphBuilder::stack_op(Bytecodes::Code code) {
a61af66fc99e Initial load
duke
parents:
diff changeset
985 switch (code) {
a61af66fc99e Initial load
duke
parents:
diff changeset
986 case Bytecodes::_pop:
a61af66fc99e Initial load
duke
parents:
diff changeset
987 { state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
988 }
a61af66fc99e Initial load
duke
parents:
diff changeset
989 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
990 case Bytecodes::_pop2:
a61af66fc99e Initial load
duke
parents:
diff changeset
991 { state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
992 state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
993 }
a61af66fc99e Initial load
duke
parents:
diff changeset
994 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
995 case Bytecodes::_dup:
a61af66fc99e Initial load
duke
parents:
diff changeset
996 { Value w = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
997 state()->raw_push(w);
a61af66fc99e Initial load
duke
parents:
diff changeset
998 state()->raw_push(w);
a61af66fc99e Initial load
duke
parents:
diff changeset
999 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1000 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1001 case Bytecodes::_dup_x1:
a61af66fc99e Initial load
duke
parents:
diff changeset
1002 { Value w1 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1003 Value w2 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1004 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1005 state()->raw_push(w2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1006 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1007 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1008 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1009 case Bytecodes::_dup_x2:
a61af66fc99e Initial load
duke
parents:
diff changeset
1010 { Value w1 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1011 Value w2 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1012 Value w3 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1013 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1014 state()->raw_push(w3);
a61af66fc99e Initial load
duke
parents:
diff changeset
1015 state()->raw_push(w2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1016 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1017 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1018 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1019 case Bytecodes::_dup2:
a61af66fc99e Initial load
duke
parents:
diff changeset
1020 { Value w1 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1021 Value w2 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1022 state()->raw_push(w2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1023 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1024 state()->raw_push(w2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1025 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1026 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1027 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1028 case Bytecodes::_dup2_x1:
a61af66fc99e Initial load
duke
parents:
diff changeset
1029 { Value w1 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1030 Value w2 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1031 Value w3 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1032 state()->raw_push(w2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1033 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1034 state()->raw_push(w3);
a61af66fc99e Initial load
duke
parents:
diff changeset
1035 state()->raw_push(w2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1036 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1037 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1038 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1039 case Bytecodes::_dup2_x2:
a61af66fc99e Initial load
duke
parents:
diff changeset
1040 { Value w1 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1041 Value w2 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1042 Value w3 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1043 Value w4 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1044 state()->raw_push(w2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1045 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1046 state()->raw_push(w4);
a61af66fc99e Initial load
duke
parents:
diff changeset
1047 state()->raw_push(w3);
a61af66fc99e Initial load
duke
parents:
diff changeset
1048 state()->raw_push(w2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1049 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1050 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1051 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1052 case Bytecodes::_swap:
a61af66fc99e Initial load
duke
parents:
diff changeset
1053 { Value w1 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1054 Value w2 = state()->raw_pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1055 state()->raw_push(w1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1056 state()->raw_push(w2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1057 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1058 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1059 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
1060 ShouldNotReachHere();
a61af66fc99e Initial load
duke
parents:
diff changeset
1061 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1062 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1063 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1064
a61af66fc99e Initial load
duke
parents:
diff changeset
1065
a61af66fc99e Initial load
duke
parents:
diff changeset
1066 void GraphBuilder::arithmetic_op(ValueType* type, Bytecodes::Code code, ValueStack* stack) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1067 Value y = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1068 Value x = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1069 // NOTE: strictfp can be queried from current method since we don't
a61af66fc99e Initial load
duke
parents:
diff changeset
1070 // inline methods with differing strictfp bits
a61af66fc99e Initial load
duke
parents:
diff changeset
1071 Value res = new ArithmeticOp(code, x, y, method()->is_strict(), stack);
a61af66fc99e Initial load
duke
parents:
diff changeset
1072 // Note: currently single-precision floating-point rounding on Intel is handled at the LIRGenerator level
a61af66fc99e Initial load
duke
parents:
diff changeset
1073 res = append(res);
a61af66fc99e Initial load
duke
parents:
diff changeset
1074 if (method()->is_strict()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1075 res = round_fp(res);
a61af66fc99e Initial load
duke
parents:
diff changeset
1076 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1077 push(type, res);
a61af66fc99e Initial load
duke
parents:
diff changeset
1078 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1079
a61af66fc99e Initial load
duke
parents:
diff changeset
1080
a61af66fc99e Initial load
duke
parents:
diff changeset
1081 void GraphBuilder::negate_op(ValueType* type) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1082 push(type, append(new NegateOp(pop(type))));
a61af66fc99e Initial load
duke
parents:
diff changeset
1083 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1084
a61af66fc99e Initial load
duke
parents:
diff changeset
1085
a61af66fc99e Initial load
duke
parents:
diff changeset
1086 void GraphBuilder::shift_op(ValueType* type, Bytecodes::Code code) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1087 Value s = ipop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1088 Value x = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1089 // try to simplify
a61af66fc99e Initial load
duke
parents:
diff changeset
1090 // Note: This code should go into the canonicalizer as soon as it can
a61af66fc99e Initial load
duke
parents:
diff changeset
1091 // can handle canonicalized forms that contain more than one node.
a61af66fc99e Initial load
duke
parents:
diff changeset
1092 if (CanonicalizeNodes && code == Bytecodes::_iushr) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1093 // pattern: x >>> s
a61af66fc99e Initial load
duke
parents:
diff changeset
1094 IntConstant* s1 = s->type()->as_IntConstant();
a61af66fc99e Initial load
duke
parents:
diff changeset
1095 if (s1 != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1096 // pattern: x >>> s1, with s1 constant
a61af66fc99e Initial load
duke
parents:
diff changeset
1097 ShiftOp* l = x->as_ShiftOp();
a61af66fc99e Initial load
duke
parents:
diff changeset
1098 if (l != NULL && l->op() == Bytecodes::_ishl) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1099 // pattern: (a << b) >>> s1
a61af66fc99e Initial load
duke
parents:
diff changeset
1100 IntConstant* s0 = l->y()->type()->as_IntConstant();
a61af66fc99e Initial load
duke
parents:
diff changeset
1101 if (s0 != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1102 // pattern: (a << s0) >>> s1
a61af66fc99e Initial load
duke
parents:
diff changeset
1103 const int s0c = s0->value() & 0x1F; // only the low 5 bits are significant for shifts
a61af66fc99e Initial load
duke
parents:
diff changeset
1104 const int s1c = s1->value() & 0x1F; // only the low 5 bits are significant for shifts
a61af66fc99e Initial load
duke
parents:
diff changeset
1105 if (s0c == s1c) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1106 if (s0c == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1107 // pattern: (a << 0) >>> 0 => simplify to: a
a61af66fc99e Initial load
duke
parents:
diff changeset
1108 ipush(l->x());
a61af66fc99e Initial load
duke
parents:
diff changeset
1109 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1110 // pattern: (a << s0c) >>> s0c => simplify to: a & m, with m constant
a61af66fc99e Initial load
duke
parents:
diff changeset
1111 assert(0 < s0c && s0c < BitsPerInt, "adjust code below to handle corner cases");
a61af66fc99e Initial load
duke
parents:
diff changeset
1112 const int m = (1 << (BitsPerInt - s0c)) - 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1113 Value s = append(new Constant(new IntConstant(m)));
a61af66fc99e Initial load
duke
parents:
diff changeset
1114 ipush(append(new LogicOp(Bytecodes::_iand, l->x(), s)));
a61af66fc99e Initial load
duke
parents:
diff changeset
1115 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1116 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
1117 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1118 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1119 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1120 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1121 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1122 // could not simplify
a61af66fc99e Initial load
duke
parents:
diff changeset
1123 push(type, append(new ShiftOp(code, x, s)));
a61af66fc99e Initial load
duke
parents:
diff changeset
1124 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1125
a61af66fc99e Initial load
duke
parents:
diff changeset
1126
a61af66fc99e Initial load
duke
parents:
diff changeset
1127 void GraphBuilder::logic_op(ValueType* type, Bytecodes::Code code) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1128 Value y = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1129 Value x = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1130 push(type, append(new LogicOp(code, x, y)));
a61af66fc99e Initial load
duke
parents:
diff changeset
1131 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1132
a61af66fc99e Initial load
duke
parents:
diff changeset
1133
a61af66fc99e Initial load
duke
parents:
diff changeset
1134 void GraphBuilder::compare_op(ValueType* type, Bytecodes::Code code) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1135 ValueStack* state_before = state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
1136 Value y = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1137 Value x = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1138 ipush(append(new CompareOp(code, x, y, state_before)));
a61af66fc99e Initial load
duke
parents:
diff changeset
1139 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1140
a61af66fc99e Initial load
duke
parents:
diff changeset
1141
a61af66fc99e Initial load
duke
parents:
diff changeset
1142 void GraphBuilder::convert(Bytecodes::Code op, BasicType from, BasicType to) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1143 push(as_ValueType(to), append(new Convert(op, pop(as_ValueType(from)), as_ValueType(to))));
a61af66fc99e Initial load
duke
parents:
diff changeset
1144 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1145
a61af66fc99e Initial load
duke
parents:
diff changeset
1146
a61af66fc99e Initial load
duke
parents:
diff changeset
1147 void GraphBuilder::increment() {
a61af66fc99e Initial load
duke
parents:
diff changeset
1148 int index = stream()->get_index();
a61af66fc99e Initial load
duke
parents:
diff changeset
1149 int delta = stream()->is_wide() ? (signed short)Bytes::get_Java_u2(stream()->cur_bcp() + 4) : (signed char)(stream()->cur_bcp()[2]);
a61af66fc99e Initial load
duke
parents:
diff changeset
1150 load_local(intType, index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1151 ipush(append(new Constant(new IntConstant(delta))));
a61af66fc99e Initial load
duke
parents:
diff changeset
1152 arithmetic_op(intType, Bytecodes::_iadd);
a61af66fc99e Initial load
duke
parents:
diff changeset
1153 store_local(intType, index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1154 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1155
a61af66fc99e Initial load
duke
parents:
diff changeset
1156
a61af66fc99e Initial load
duke
parents:
diff changeset
1157 void GraphBuilder::_goto(int from_bci, int to_bci) {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1158 Goto *x = new Goto(block_at(to_bci), to_bci <= from_bci);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1159 if (is_profiling()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1160 compilation()->set_would_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1161 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1162 if (profile_branches()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1163 x->set_profiled_method(method());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1164 x->set_profiled_bci(bci());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1165 x->set_should_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1166 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1167 append(x);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1168 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1169
a61af66fc99e Initial load
duke
parents:
diff changeset
1170
a61af66fc99e Initial load
duke
parents:
diff changeset
1171 void GraphBuilder::if_node(Value x, If::Condition cond, Value y, ValueStack* state_before) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1172 BlockBegin* tsux = block_at(stream()->get_dest());
a61af66fc99e Initial load
duke
parents:
diff changeset
1173 BlockBegin* fsux = block_at(stream()->next_bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
1174 bool is_bb = tsux->bci() < stream()->cur_bci() || fsux->bci() < stream()->cur_bci();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1175 Instruction *i = append(new If(x, cond, false, y, tsux, fsux, is_bb ? state_before : NULL, is_bb));
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1176
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1177 if (is_profiling()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1178 If* if_node = i->as_If();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1179 if (if_node != NULL) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1180 // Note that we'd collect profile data in this method if we wanted it.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1181 compilation()->set_would_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1182 // At level 2 we need the proper bci to count backedges
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1183 if_node->set_profiled_bci(bci());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1184 if (profile_branches()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1185 // Successors can be rotated by the canonicalizer, check for this case.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1186 if_node->set_profiled_method(method());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1187 if_node->set_should_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1188 if (if_node->tsux() == fsux) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1189 if_node->set_swapped(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1190 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1191 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1192 return;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1193 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1194
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1195 // Check if this If was reduced to Goto.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1196 Goto *goto_node = i->as_Goto();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1197 if (goto_node != NULL) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1198 compilation()->set_would_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1199 if (profile_branches()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1200 goto_node->set_profiled_method(method());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1201 goto_node->set_profiled_bci(bci());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1202 goto_node->set_should_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1203 // Find out which successor is used.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1204 if (goto_node->default_sux() == tsux) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1205 goto_node->set_direction(Goto::taken);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1206 } else if (goto_node->default_sux() == fsux) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1207 goto_node->set_direction(Goto::not_taken);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1208 } else {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1209 ShouldNotReachHere();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1210 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1211 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1212 return;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1213 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1214 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1215 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1216
a61af66fc99e Initial load
duke
parents:
diff changeset
1217
a61af66fc99e Initial load
duke
parents:
diff changeset
1218 void GraphBuilder::if_zero(ValueType* type, If::Condition cond) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1219 Value y = append(new Constant(intZero));
a61af66fc99e Initial load
duke
parents:
diff changeset
1220 ValueStack* state_before = state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
1221 Value x = ipop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1222 if_node(x, cond, y, state_before);
a61af66fc99e Initial load
duke
parents:
diff changeset
1223 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1224
a61af66fc99e Initial load
duke
parents:
diff changeset
1225
a61af66fc99e Initial load
duke
parents:
diff changeset
1226 void GraphBuilder::if_null(ValueType* type, If::Condition cond) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1227 Value y = append(new Constant(objectNull));
a61af66fc99e Initial load
duke
parents:
diff changeset
1228 ValueStack* state_before = state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
1229 Value x = apop();
a61af66fc99e Initial load
duke
parents:
diff changeset
1230 if_node(x, cond, y, state_before);
a61af66fc99e Initial load
duke
parents:
diff changeset
1231 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1232
a61af66fc99e Initial load
duke
parents:
diff changeset
1233
a61af66fc99e Initial load
duke
parents:
diff changeset
1234 void GraphBuilder::if_same(ValueType* type, If::Condition cond) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1235 ValueStack* state_before = state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
1236 Value y = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1237 Value x = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1238 if_node(x, cond, y, state_before);
a61af66fc99e Initial load
duke
parents:
diff changeset
1239 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1240
a61af66fc99e Initial load
duke
parents:
diff changeset
1241
a61af66fc99e Initial load
duke
parents:
diff changeset
1242 void GraphBuilder::jsr(int dest) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1243 // We only handle well-formed jsrs (those which are "block-structured").
a61af66fc99e Initial load
duke
parents:
diff changeset
1244 // If the bytecodes are strange (jumping out of a jsr block) then we
a61af66fc99e Initial load
duke
parents:
diff changeset
1245 // might end up trying to re-parse a block containing a jsr which
a61af66fc99e Initial load
duke
parents:
diff changeset
1246 // has already been activated. Watch for this case and bail out.
a61af66fc99e Initial load
duke
parents:
diff changeset
1247 for (ScopeData* cur_scope_data = scope_data();
a61af66fc99e Initial load
duke
parents:
diff changeset
1248 cur_scope_data != NULL && cur_scope_data->parsing_jsr() && cur_scope_data->scope() == scope();
a61af66fc99e Initial load
duke
parents:
diff changeset
1249 cur_scope_data = cur_scope_data->parent()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1250 if (cur_scope_data->jsr_entry_bci() == dest) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1251 BAILOUT("too-complicated jsr/ret structure");
a61af66fc99e Initial load
duke
parents:
diff changeset
1252 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1253 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1254
a61af66fc99e Initial load
duke
parents:
diff changeset
1255 push(addressType, append(new Constant(new AddressConstant(next_bci()))));
a61af66fc99e Initial load
duke
parents:
diff changeset
1256 if (!try_inline_jsr(dest)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1257 return; // bailed out while parsing and inlining subroutine
a61af66fc99e Initial load
duke
parents:
diff changeset
1258 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1259 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1260
a61af66fc99e Initial load
duke
parents:
diff changeset
1261
a61af66fc99e Initial load
duke
parents:
diff changeset
1262 void GraphBuilder::ret(int local_index) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1263 if (!parsing_jsr()) BAILOUT("ret encountered while not parsing subroutine");
a61af66fc99e Initial load
duke
parents:
diff changeset
1264
a61af66fc99e Initial load
duke
parents:
diff changeset
1265 if (local_index != scope_data()->jsr_return_address_local()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1266 BAILOUT("can not handle complicated jsr/ret constructs");
a61af66fc99e Initial load
duke
parents:
diff changeset
1267 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1268
a61af66fc99e Initial load
duke
parents:
diff changeset
1269 // Rets simply become (NON-SAFEPOINT) gotos to the jsr continuation
a61af66fc99e Initial load
duke
parents:
diff changeset
1270 append(new Goto(scope_data()->jsr_continuation(), false));
a61af66fc99e Initial load
duke
parents:
diff changeset
1271 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1272
a61af66fc99e Initial load
duke
parents:
diff changeset
1273
a61af66fc99e Initial load
duke
parents:
diff changeset
1274 void GraphBuilder::table_switch() {
a61af66fc99e Initial load
duke
parents:
diff changeset
1275 Bytecode_tableswitch* switch_ = Bytecode_tableswitch_at(method()->code() + bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
1276 const int l = switch_->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1277 if (CanonicalizeNodes && l == 1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1278 // total of 2 successors => use If instead of switch
a61af66fc99e Initial load
duke
parents:
diff changeset
1279 // Note: This code should go into the canonicalizer as soon as it can
a61af66fc99e Initial load
duke
parents:
diff changeset
1280 // can handle canonicalized forms that contain more than one node.
a61af66fc99e Initial load
duke
parents:
diff changeset
1281 Value key = append(new Constant(new IntConstant(switch_->low_key())));
a61af66fc99e Initial load
duke
parents:
diff changeset
1282 BlockBegin* tsux = block_at(bci() + switch_->dest_offset_at(0));
a61af66fc99e Initial load
duke
parents:
diff changeset
1283 BlockBegin* fsux = block_at(bci() + switch_->default_offset());
a61af66fc99e Initial load
duke
parents:
diff changeset
1284 bool is_bb = tsux->bci() < bci() || fsux->bci() < bci();
a61af66fc99e Initial load
duke
parents:
diff changeset
1285 ValueStack* state_before = is_bb ? state() : NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1286 append(new If(ipop(), If::eql, true, key, tsux, fsux, state_before, is_bb));
a61af66fc99e Initial load
duke
parents:
diff changeset
1287 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1288 // collect successors
a61af66fc99e Initial load
duke
parents:
diff changeset
1289 BlockList* sux = new BlockList(l + 1, NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1290 int i;
a61af66fc99e Initial load
duke
parents:
diff changeset
1291 bool has_bb = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1292 for (i = 0; i < l; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1293 sux->at_put(i, block_at(bci() + switch_->dest_offset_at(i)));
a61af66fc99e Initial load
duke
parents:
diff changeset
1294 if (switch_->dest_offset_at(i) < 0) has_bb = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1295 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1296 // add default successor
a61af66fc99e Initial load
duke
parents:
diff changeset
1297 sux->at_put(i, block_at(bci() + switch_->default_offset()));
a61af66fc99e Initial load
duke
parents:
diff changeset
1298 ValueStack* state_before = has_bb ? state() : NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1299 append(new TableSwitch(ipop(), sux, switch_->low_key(), state_before, has_bb));
a61af66fc99e Initial load
duke
parents:
diff changeset
1300 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1301 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1302
a61af66fc99e Initial load
duke
parents:
diff changeset
1303
a61af66fc99e Initial load
duke
parents:
diff changeset
1304 void GraphBuilder::lookup_switch() {
a61af66fc99e Initial load
duke
parents:
diff changeset
1305 Bytecode_lookupswitch* switch_ = Bytecode_lookupswitch_at(method()->code() + bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
1306 const int l = switch_->number_of_pairs();
a61af66fc99e Initial load
duke
parents:
diff changeset
1307 if (CanonicalizeNodes && l == 1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1308 // total of 2 successors => use If instead of switch
a61af66fc99e Initial load
duke
parents:
diff changeset
1309 // Note: This code should go into the canonicalizer as soon as it can
a61af66fc99e Initial load
duke
parents:
diff changeset
1310 // can handle canonicalized forms that contain more than one node.
a61af66fc99e Initial load
duke
parents:
diff changeset
1311 // simplify to If
a61af66fc99e Initial load
duke
parents:
diff changeset
1312 LookupswitchPair* pair = switch_->pair_at(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
1313 Value key = append(new Constant(new IntConstant(pair->match())));
a61af66fc99e Initial load
duke
parents:
diff changeset
1314 BlockBegin* tsux = block_at(bci() + pair->offset());
a61af66fc99e Initial load
duke
parents:
diff changeset
1315 BlockBegin* fsux = block_at(bci() + switch_->default_offset());
a61af66fc99e Initial load
duke
parents:
diff changeset
1316 bool is_bb = tsux->bci() < bci() || fsux->bci() < bci();
a61af66fc99e Initial load
duke
parents:
diff changeset
1317 ValueStack* state_before = is_bb ? state() : NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1318 append(new If(ipop(), If::eql, true, key, tsux, fsux, state_before, is_bb));
a61af66fc99e Initial load
duke
parents:
diff changeset
1319 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1320 // collect successors & keys
a61af66fc99e Initial load
duke
parents:
diff changeset
1321 BlockList* sux = new BlockList(l + 1, NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1322 intArray* keys = new intArray(l, 0);
a61af66fc99e Initial load
duke
parents:
diff changeset
1323 int i;
a61af66fc99e Initial load
duke
parents:
diff changeset
1324 bool has_bb = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1325 for (i = 0; i < l; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1326 LookupswitchPair* pair = switch_->pair_at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
1327 if (pair->offset() < 0) has_bb = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1328 sux->at_put(i, block_at(bci() + pair->offset()));
a61af66fc99e Initial load
duke
parents:
diff changeset
1329 keys->at_put(i, pair->match());
a61af66fc99e Initial load
duke
parents:
diff changeset
1330 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1331 // add default successor
a61af66fc99e Initial load
duke
parents:
diff changeset
1332 sux->at_put(i, block_at(bci() + switch_->default_offset()));
a61af66fc99e Initial load
duke
parents:
diff changeset
1333 ValueStack* state_before = has_bb ? state() : NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1334 append(new LookupSwitch(ipop(), sux, keys, state_before, has_bb));
a61af66fc99e Initial load
duke
parents:
diff changeset
1335 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1336 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1337
a61af66fc99e Initial load
duke
parents:
diff changeset
1338 void GraphBuilder::call_register_finalizer() {
a61af66fc99e Initial load
duke
parents:
diff changeset
1339 // If the receiver requires finalization then emit code to perform
a61af66fc99e Initial load
duke
parents:
diff changeset
1340 // the registration on return.
a61af66fc99e Initial load
duke
parents:
diff changeset
1341
a61af66fc99e Initial load
duke
parents:
diff changeset
1342 // Gather some type information about the receiver
a61af66fc99e Initial load
duke
parents:
diff changeset
1343 Value receiver = state()->load_local(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
1344 assert(receiver != NULL, "must have a receiver");
a61af66fc99e Initial load
duke
parents:
diff changeset
1345 ciType* declared_type = receiver->declared_type();
a61af66fc99e Initial load
duke
parents:
diff changeset
1346 ciType* exact_type = receiver->exact_type();
a61af66fc99e Initial load
duke
parents:
diff changeset
1347 if (exact_type == NULL &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1348 receiver->as_Local() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1349 receiver->as_Local()->java_index() == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1350 ciInstanceKlass* ik = compilation()->method()->holder();
a61af66fc99e Initial load
duke
parents:
diff changeset
1351 if (ik->is_final()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1352 exact_type = ik;
a61af66fc99e Initial load
duke
parents:
diff changeset
1353 } else if (UseCHA && !(ik->has_subklass() || ik->is_interface())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1354 // test class is leaf class
a61af66fc99e Initial load
duke
parents:
diff changeset
1355 compilation()->dependency_recorder()->assert_leaf_type(ik);
a61af66fc99e Initial load
duke
parents:
diff changeset
1356 exact_type = ik;
a61af66fc99e Initial load
duke
parents:
diff changeset
1357 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1358 declared_type = ik;
a61af66fc99e Initial load
duke
parents:
diff changeset
1359 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1360 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1361
a61af66fc99e Initial load
duke
parents:
diff changeset
1362 // see if we know statically that registration isn't required
a61af66fc99e Initial load
duke
parents:
diff changeset
1363 bool needs_check = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1364 if (exact_type != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1365 needs_check = exact_type->as_instance_klass()->has_finalizer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1366 } else if (declared_type != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1367 ciInstanceKlass* ik = declared_type->as_instance_klass();
a61af66fc99e Initial load
duke
parents:
diff changeset
1368 if (!Dependencies::has_finalizable_subclass(ik)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1369 compilation()->dependency_recorder()->assert_has_no_finalizable_subclasses(ik);
a61af66fc99e Initial load
duke
parents:
diff changeset
1370 needs_check = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1371 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1372 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1373
a61af66fc99e Initial load
duke
parents:
diff changeset
1374 if (needs_check) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1375 // Perform the registration of finalizable objects.
a61af66fc99e Initial load
duke
parents:
diff changeset
1376 load_local(objectType, 0);
a61af66fc99e Initial load
duke
parents:
diff changeset
1377 append_split(new Intrinsic(voidType, vmIntrinsics::_Object_init,
a61af66fc99e Initial load
duke
parents:
diff changeset
1378 state()->pop_arguments(1),
a61af66fc99e Initial load
duke
parents:
diff changeset
1379 true, lock_stack(), true));
a61af66fc99e Initial load
duke
parents:
diff changeset
1380 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1381 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1382
a61af66fc99e Initial load
duke
parents:
diff changeset
1383
a61af66fc99e Initial load
duke
parents:
diff changeset
1384 void GraphBuilder::method_return(Value x) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1385 if (RegisterFinalizersAtInit &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1386 method()->intrinsic_id() == vmIntrinsics::_Object_init) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1387 call_register_finalizer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1388 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1389
a61af66fc99e Initial load
duke
parents:
diff changeset
1390 // Check to see whether we are inlining. If so, Return
a61af66fc99e Initial load
duke
parents:
diff changeset
1391 // instructions become Gotos to the continuation point.
a61af66fc99e Initial load
duke
parents:
diff changeset
1392 if (continuation() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1393 assert(!method()->is_synchronized() || InlineSynchronizedMethods, "can not inline synchronized methods yet");
a61af66fc99e Initial load
duke
parents:
diff changeset
1394
a61af66fc99e Initial load
duke
parents:
diff changeset
1395 // If the inlined method is synchronized, the monitor must be
a61af66fc99e Initial load
duke
parents:
diff changeset
1396 // released before we jump to the continuation block.
a61af66fc99e Initial load
duke
parents:
diff changeset
1397 if (method()->is_synchronized()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1398 int i = state()->caller_state()->locks_size();
a61af66fc99e Initial load
duke
parents:
diff changeset
1399 assert(state()->locks_size() == i + 1, "receiver must be locked here");
a61af66fc99e Initial load
duke
parents:
diff changeset
1400 monitorexit(state()->lock_at(i), SynchronizationEntryBCI);
a61af66fc99e Initial load
duke
parents:
diff changeset
1401 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1402
a61af66fc99e Initial load
duke
parents:
diff changeset
1403 state()->truncate_stack(caller_stack_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
1404 if (x != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1405 state()->push(x->type(), x);
a61af66fc99e Initial load
duke
parents:
diff changeset
1406 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1407 Goto* goto_callee = new Goto(continuation(), false);
a61af66fc99e Initial load
duke
parents:
diff changeset
1408
a61af66fc99e Initial load
duke
parents:
diff changeset
1409 // See whether this is the first return; if so, store off some
a61af66fc99e Initial load
duke
parents:
diff changeset
1410 // of the state for later examination
a61af66fc99e Initial load
duke
parents:
diff changeset
1411 if (num_returns() == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1412 set_inline_cleanup_info(_block, _last, state());
a61af66fc99e Initial load
duke
parents:
diff changeset
1413 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1414
a61af66fc99e Initial load
duke
parents:
diff changeset
1415 // State at end of inlined method is the state of the caller
a61af66fc99e Initial load
duke
parents:
diff changeset
1416 // without the method parameters on stack, including the
a61af66fc99e Initial load
duke
parents:
diff changeset
1417 // return value, if any, of the inlined method on operand stack.
a61af66fc99e Initial load
duke
parents:
diff changeset
1418 set_state(scope_data()->continuation_state()->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
1419 if (x) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1420 state()->push(x->type(), x);
a61af66fc99e Initial load
duke
parents:
diff changeset
1421 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1422
a61af66fc99e Initial load
duke
parents:
diff changeset
1423 // The current bci() is in the wrong scope, so use the bci() of
a61af66fc99e Initial load
duke
parents:
diff changeset
1424 // the continuation point.
a61af66fc99e Initial load
duke
parents:
diff changeset
1425 append_with_bci(goto_callee, scope_data()->continuation()->bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
1426 incr_num_returns();
a61af66fc99e Initial load
duke
parents:
diff changeset
1427
a61af66fc99e Initial load
duke
parents:
diff changeset
1428 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
1429 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1430
a61af66fc99e Initial load
duke
parents:
diff changeset
1431 state()->truncate_stack(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
1432 if (method()->is_synchronized()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1433 // perform the unlocking before exiting the method
a61af66fc99e Initial load
duke
parents:
diff changeset
1434 Value receiver;
a61af66fc99e Initial load
duke
parents:
diff changeset
1435 if (!method()->is_static()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1436 receiver = _initial_state->local_at(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
1437 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1438 receiver = append(new Constant(new ClassConstant(method()->holder())));
a61af66fc99e Initial load
duke
parents:
diff changeset
1439 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1440 append_split(new MonitorExit(receiver, state()->unlock()));
a61af66fc99e Initial load
duke
parents:
diff changeset
1441 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1442
a61af66fc99e Initial load
duke
parents:
diff changeset
1443 append(new Return(x));
a61af66fc99e Initial load
duke
parents:
diff changeset
1444 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1445
a61af66fc99e Initial load
duke
parents:
diff changeset
1446
a61af66fc99e Initial load
duke
parents:
diff changeset
1447 void GraphBuilder::access_field(Bytecodes::Code code) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1448 bool will_link;
a61af66fc99e Initial load
duke
parents:
diff changeset
1449 ciField* field = stream()->get_field(will_link);
a61af66fc99e Initial load
duke
parents:
diff changeset
1450 ciInstanceKlass* holder = field->holder();
a61af66fc99e Initial load
duke
parents:
diff changeset
1451 BasicType field_type = field->type()->basic_type();
a61af66fc99e Initial load
duke
parents:
diff changeset
1452 ValueType* type = as_ValueType(field_type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1453 // call will_link again to determine if the field is valid.
a61af66fc99e Initial load
duke
parents:
diff changeset
1454 const bool is_loaded = holder->is_loaded() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1455 field->will_link(method()->holder(), code);
a61af66fc99e Initial load
duke
parents:
diff changeset
1456 const bool is_initialized = is_loaded && holder->is_initialized();
a61af66fc99e Initial load
duke
parents:
diff changeset
1457
a61af66fc99e Initial load
duke
parents:
diff changeset
1458 ValueStack* state_copy = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1459 if (!is_initialized || PatchALot) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1460 // save state before instruction for debug info when
a61af66fc99e Initial load
duke
parents:
diff changeset
1461 // deoptimization happens during patching
a61af66fc99e Initial load
duke
parents:
diff changeset
1462 state_copy = state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
1463 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1464
a61af66fc99e Initial load
duke
parents:
diff changeset
1465 Value obj = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1466 if (code == Bytecodes::_getstatic || code == Bytecodes::_putstatic) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1467 // commoning of class constants should only occur if the class is
a61af66fc99e Initial load
duke
parents:
diff changeset
1468 // fully initialized and resolved in this constant pool. The will_link test
a61af66fc99e Initial load
duke
parents:
diff changeset
1469 // above essentially checks if this class is resolved in this constant pool
a61af66fc99e Initial load
duke
parents:
diff changeset
1470 // so, the is_initialized flag should be suffiect.
a61af66fc99e Initial load
duke
parents:
diff changeset
1471 if (state_copy != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1472 // build a patching constant
a61af66fc99e Initial load
duke
parents:
diff changeset
1473 obj = new Constant(new ClassConstant(holder), state_copy);
a61af66fc99e Initial load
duke
parents:
diff changeset
1474 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1475 obj = new Constant(new ClassConstant(holder));
a61af66fc99e Initial load
duke
parents:
diff changeset
1476 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1477 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1478
a61af66fc99e Initial load
duke
parents:
diff changeset
1479
a61af66fc99e Initial load
duke
parents:
diff changeset
1480 const int offset = is_loaded ? field->offset() : -1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1481 switch (code) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1482 case Bytecodes::_getstatic: {
a61af66fc99e Initial load
duke
parents:
diff changeset
1483 // check for compile-time constants, i.e., initialized static final fields
a61af66fc99e Initial load
duke
parents:
diff changeset
1484 Instruction* constant = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1485 if (field->is_constant() && !PatchALot) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1486 ciConstant field_val = field->constant_value();
a61af66fc99e Initial load
duke
parents:
diff changeset
1487 BasicType field_type = field_val.basic_type();
a61af66fc99e Initial load
duke
parents:
diff changeset
1488 switch (field_type) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1489 case T_ARRAY:
a61af66fc99e Initial load
duke
parents:
diff changeset
1490 case T_OBJECT:
989
148e5441d916 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 844
diff changeset
1491 if (field_val.as_object()->should_be_constant()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1492 constant = new Constant(as_ValueType(field_val));
a61af66fc99e Initial load
duke
parents:
diff changeset
1493 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1494 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1495
a61af66fc99e Initial load
duke
parents:
diff changeset
1496 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
1497 constant = new Constant(as_ValueType(field_val));
a61af66fc99e Initial load
duke
parents:
diff changeset
1498 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1499 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1500 if (constant != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1501 push(type, append(constant));
a61af66fc99e Initial load
duke
parents:
diff changeset
1502 state_copy = NULL; // Not a potential deoptimization point (see set_state_before logic below)
a61af66fc99e Initial load
duke
parents:
diff changeset
1503 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1504 push(type, append(new LoadField(append(obj), offset, field, true,
a61af66fc99e Initial load
duke
parents:
diff changeset
1505 lock_stack(), state_copy, is_loaded, is_initialized)));
a61af66fc99e Initial load
duke
parents:
diff changeset
1506 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1507 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1508 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1509 case Bytecodes::_putstatic:
a61af66fc99e Initial load
duke
parents:
diff changeset
1510 { Value val = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1511 append(new StoreField(append(obj), offset, field, val, true, lock_stack(), state_copy, is_loaded, is_initialized));
a61af66fc99e Initial load
duke
parents:
diff changeset
1512 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1513 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1514 case Bytecodes::_getfield :
a61af66fc99e Initial load
duke
parents:
diff changeset
1515 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1516 LoadField* load = new LoadField(apop(), offset, field, false, lock_stack(), state_copy, is_loaded, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
1517 Value replacement = is_loaded ? _memory->load(load) : load;
a61af66fc99e Initial load
duke
parents:
diff changeset
1518 if (replacement != load) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1519 assert(replacement->bci() != -99 || replacement->as_Phi() || replacement->as_Local(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1520 "should already by linked");
a61af66fc99e Initial load
duke
parents:
diff changeset
1521 push(type, replacement);
a61af66fc99e Initial load
duke
parents:
diff changeset
1522 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1523 push(type, append(load));
a61af66fc99e Initial load
duke
parents:
diff changeset
1524 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1525 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1526 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1527
a61af66fc99e Initial load
duke
parents:
diff changeset
1528 case Bytecodes::_putfield :
a61af66fc99e Initial load
duke
parents:
diff changeset
1529 { Value val = pop(type);
a61af66fc99e Initial load
duke
parents:
diff changeset
1530 StoreField* store = new StoreField(apop(), offset, field, val, false, lock_stack(), state_copy, is_loaded, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
1531 if (is_loaded) store = _memory->store(store);
a61af66fc99e Initial load
duke
parents:
diff changeset
1532 if (store != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1533 append(store);
a61af66fc99e Initial load
duke
parents:
diff changeset
1534 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1535 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1536 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1537 default :
a61af66fc99e Initial load
duke
parents:
diff changeset
1538 ShouldNotReachHere();
a61af66fc99e Initial load
duke
parents:
diff changeset
1539 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1540 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1541 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1542
a61af66fc99e Initial load
duke
parents:
diff changeset
1543
a61af66fc99e Initial load
duke
parents:
diff changeset
1544 Dependencies* GraphBuilder::dependency_recorder() const {
a61af66fc99e Initial load
duke
parents:
diff changeset
1545 assert(DeoptC1, "need debug information");
a61af66fc99e Initial load
duke
parents:
diff changeset
1546 return compilation()->dependency_recorder();
a61af66fc99e Initial load
duke
parents:
diff changeset
1547 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1548
a61af66fc99e Initial load
duke
parents:
diff changeset
1549
a61af66fc99e Initial load
duke
parents:
diff changeset
1550 void GraphBuilder::invoke(Bytecodes::Code code) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1551 bool will_link;
a61af66fc99e Initial load
duke
parents:
diff changeset
1552 ciMethod* target = stream()->get_method(will_link);
a61af66fc99e Initial load
duke
parents:
diff changeset
1553 // we have to make sure the argument size (incl. the receiver)
a61af66fc99e Initial load
duke
parents:
diff changeset
1554 // is correct for compilation (the call would fail later during
a61af66fc99e Initial load
duke
parents:
diff changeset
1555 // linkage anyway) - was bug (gri 7/28/99)
a61af66fc99e Initial load
duke
parents:
diff changeset
1556 if (target->is_loaded() && target->is_static() != (code == Bytecodes::_invokestatic)) BAILOUT("will cause link error");
a61af66fc99e Initial load
duke
parents:
diff changeset
1557 ciInstanceKlass* klass = target->holder();
a61af66fc99e Initial load
duke
parents:
diff changeset
1558
a61af66fc99e Initial load
duke
parents:
diff changeset
1559 // check if CHA possible: if so, change the code to invoke_special
a61af66fc99e Initial load
duke
parents:
diff changeset
1560 ciInstanceKlass* calling_klass = method()->holder();
a61af66fc99e Initial load
duke
parents:
diff changeset
1561 ciKlass* holder = stream()->get_declared_method_holder();
a61af66fc99e Initial load
duke
parents:
diff changeset
1562 ciInstanceKlass* callee_holder = ciEnv::get_instance_klass_for_declared_method_holder(holder);
a61af66fc99e Initial load
duke
parents:
diff changeset
1563 ciInstanceKlass* actual_recv = callee_holder;
a61af66fc99e Initial load
duke
parents:
diff changeset
1564
a61af66fc99e Initial load
duke
parents:
diff changeset
1565 // some methods are obviously bindable without any type checks so
a61af66fc99e Initial load
duke
parents:
diff changeset
1566 // convert them directly to an invokespecial.
a61af66fc99e Initial load
duke
parents:
diff changeset
1567 if (target->is_loaded() && !target->is_abstract() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1568 target->can_be_statically_bound() && code == Bytecodes::_invokevirtual) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1569 code = Bytecodes::_invokespecial;
a61af66fc99e Initial load
duke
parents:
diff changeset
1570 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1571
a61af66fc99e Initial load
duke
parents:
diff changeset
1572 // NEEDS_CLEANUP
a61af66fc99e Initial load
duke
parents:
diff changeset
1573 // I've added the target-is_loaded() test below but I don't really understand
a61af66fc99e Initial load
duke
parents:
diff changeset
1574 // how klass->is_loaded() can be true and yet target->is_loaded() is false.
a61af66fc99e Initial load
duke
parents:
diff changeset
1575 // this happened while running the JCK invokevirtual tests under doit. TKR
a61af66fc99e Initial load
duke
parents:
diff changeset
1576 ciMethod* cha_monomorphic_target = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1577 ciMethod* exact_target = NULL;
1295
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1578 if (UseCHA && DeoptC1 && klass->is_loaded() && target->is_loaded() &&
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1579 !target->is_method_handle_invoke()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1580 Value receiver = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1581 ciInstanceKlass* receiver_klass = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1582 bool type_is_exact = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1583 // try to find a precise receiver type
a61af66fc99e Initial load
duke
parents:
diff changeset
1584 if (will_link && !target->is_static()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1585 int index = state()->stack_size() - (target->arg_size_no_receiver() + 1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1586 receiver = state()->stack_at(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1587 ciType* type = receiver->exact_type();
a61af66fc99e Initial load
duke
parents:
diff changeset
1588 if (type != NULL && type->is_loaded() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1589 type->is_instance_klass() && !type->as_instance_klass()->is_interface()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1590 receiver_klass = (ciInstanceKlass*) type;
a61af66fc99e Initial load
duke
parents:
diff changeset
1591 type_is_exact = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1592 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1593 if (type == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1594 type = receiver->declared_type();
a61af66fc99e Initial load
duke
parents:
diff changeset
1595 if (type != NULL && type->is_loaded() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1596 type->is_instance_klass() && !type->as_instance_klass()->is_interface()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1597 receiver_klass = (ciInstanceKlass*) type;
a61af66fc99e Initial load
duke
parents:
diff changeset
1598 if (receiver_klass->is_leaf_type() && !receiver_klass->is_final()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1599 // Insert a dependency on this type since
a61af66fc99e Initial load
duke
parents:
diff changeset
1600 // find_monomorphic_target may assume it's already done.
a61af66fc99e Initial load
duke
parents:
diff changeset
1601 dependency_recorder()->assert_leaf_type(receiver_klass);
a61af66fc99e Initial load
duke
parents:
diff changeset
1602 type_is_exact = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1603 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1604 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1605 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1606 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1607 if (receiver_klass != NULL && type_is_exact &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1608 receiver_klass->is_loaded() && code != Bytecodes::_invokespecial) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1609 // If we have the exact receiver type we can bind directly to
a61af66fc99e Initial load
duke
parents:
diff changeset
1610 // the method to call.
a61af66fc99e Initial load
duke
parents:
diff changeset
1611 exact_target = target->resolve_invoke(calling_klass, receiver_klass);
a61af66fc99e Initial load
duke
parents:
diff changeset
1612 if (exact_target != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1613 target = exact_target;
a61af66fc99e Initial load
duke
parents:
diff changeset
1614 code = Bytecodes::_invokespecial;
a61af66fc99e Initial load
duke
parents:
diff changeset
1615 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1616 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1617 if (receiver_klass != NULL &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1618 receiver_klass->is_subtype_of(actual_recv) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1619 actual_recv->is_initialized()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1620 actual_recv = receiver_klass;
a61af66fc99e Initial load
duke
parents:
diff changeset
1621 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1622
a61af66fc99e Initial load
duke
parents:
diff changeset
1623 if ((code == Bytecodes::_invokevirtual && callee_holder->is_initialized()) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
1624 (code == Bytecodes::_invokeinterface && callee_holder->is_initialized() && !actual_recv->is_interface())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1625 // Use CHA on the receiver to select a more precise method.
a61af66fc99e Initial load
duke
parents:
diff changeset
1626 cha_monomorphic_target = target->find_monomorphic_target(calling_klass, callee_holder, actual_recv);
a61af66fc99e Initial load
duke
parents:
diff changeset
1627 } else if (code == Bytecodes::_invokeinterface && callee_holder->is_loaded() && receiver != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1628 // if there is only one implementor of this interface then we
a61af66fc99e Initial load
duke
parents:
diff changeset
1629 // may be able bind this invoke directly to the implementing
a61af66fc99e Initial load
duke
parents:
diff changeset
1630 // klass but we need both a dependence on the single interface
a61af66fc99e Initial load
duke
parents:
diff changeset
1631 // and on the method we bind to. Additionally since all we know
a61af66fc99e Initial load
duke
parents:
diff changeset
1632 // about the receiver type is the it's supposed to implement the
a61af66fc99e Initial load
duke
parents:
diff changeset
1633 // interface we have to insert a check that it's the class we
a61af66fc99e Initial load
duke
parents:
diff changeset
1634 // expect. Interface types are not checked by the verifier so
a61af66fc99e Initial load
duke
parents:
diff changeset
1635 // they are roughly equivalent to Object.
a61af66fc99e Initial load
duke
parents:
diff changeset
1636 ciInstanceKlass* singleton = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1637 if (target->holder()->nof_implementors() == 1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1638 singleton = target->holder()->implementor(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
1639 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1640 if (singleton) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1641 cha_monomorphic_target = target->find_monomorphic_target(calling_klass, target->holder(), singleton);
a61af66fc99e Initial load
duke
parents:
diff changeset
1642 if (cha_monomorphic_target != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1643 // If CHA is able to bind this invoke then update the class
a61af66fc99e Initial load
duke
parents:
diff changeset
1644 // to match that class, otherwise klass will refer to the
a61af66fc99e Initial load
duke
parents:
diff changeset
1645 // interface.
a61af66fc99e Initial load
duke
parents:
diff changeset
1646 klass = cha_monomorphic_target->holder();
a61af66fc99e Initial load
duke
parents:
diff changeset
1647 actual_recv = target->holder();
a61af66fc99e Initial load
duke
parents:
diff changeset
1648
a61af66fc99e Initial load
duke
parents:
diff changeset
1649 // insert a check it's really the expected class.
a61af66fc99e Initial load
duke
parents:
diff changeset
1650 CheckCast* c = new CheckCast(klass, receiver, NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1651 c->set_incompatible_class_change_check();
a61af66fc99e Initial load
duke
parents:
diff changeset
1652 c->set_direct_compare(klass->is_final());
a61af66fc99e Initial load
duke
parents:
diff changeset
1653 append_split(c);
a61af66fc99e Initial load
duke
parents:
diff changeset
1654 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1655 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1656 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1657 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1658
a61af66fc99e Initial load
duke
parents:
diff changeset
1659 if (cha_monomorphic_target != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1660 if (cha_monomorphic_target->is_abstract()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1661 // Do not optimize for abstract methods
a61af66fc99e Initial load
duke
parents:
diff changeset
1662 cha_monomorphic_target = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1663 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1664 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1665
a61af66fc99e Initial load
duke
parents:
diff changeset
1666 if (cha_monomorphic_target != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1667 if (!(target->is_final_method())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1668 // If we inlined because CHA revealed only a single target method,
a61af66fc99e Initial load
duke
parents:
diff changeset
1669 // then we are dependent on that target method not getting overridden
a61af66fc99e Initial load
duke
parents:
diff changeset
1670 // by dynamic class loading. Be sure to test the "static" receiver
a61af66fc99e Initial load
duke
parents:
diff changeset
1671 // dest_method here, as opposed to the actual receiver, which may
a61af66fc99e Initial load
duke
parents:
diff changeset
1672 // falsely lead us to believe that the receiver is final or private.
a61af66fc99e Initial load
duke
parents:
diff changeset
1673 dependency_recorder()->assert_unique_concrete_method(actual_recv, cha_monomorphic_target);
a61af66fc99e Initial load
duke
parents:
diff changeset
1674 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1675 code = Bytecodes::_invokespecial;
a61af66fc99e Initial load
duke
parents:
diff changeset
1676 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1677 // check if we could do inlining
a61af66fc99e Initial load
duke
parents:
diff changeset
1678 if (!PatchALot && Inline && klass->is_loaded() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1679 (klass->is_initialized() || klass->is_interface() && target->holder()->is_initialized())
a61af66fc99e Initial load
duke
parents:
diff changeset
1680 && target->will_link(klass, callee_holder, code)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1681 // callee is known => check if we have static binding
a61af66fc99e Initial load
duke
parents:
diff changeset
1682 assert(target->is_loaded(), "callee must be known");
a61af66fc99e Initial load
duke
parents:
diff changeset
1683 if (code == Bytecodes::_invokestatic
a61af66fc99e Initial load
duke
parents:
diff changeset
1684 || code == Bytecodes::_invokespecial
a61af66fc99e Initial load
duke
parents:
diff changeset
1685 || code == Bytecodes::_invokevirtual && target->is_final_method()
a61af66fc99e Initial load
duke
parents:
diff changeset
1686 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1687 // static binding => check if callee is ok
a61af66fc99e Initial load
duke
parents:
diff changeset
1688 ciMethod* inline_target = (cha_monomorphic_target != NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
1689 ? cha_monomorphic_target
a61af66fc99e Initial load
duke
parents:
diff changeset
1690 : target;
a61af66fc99e Initial load
duke
parents:
diff changeset
1691 bool res = try_inline(inline_target, (cha_monomorphic_target != NULL) || (exact_target != NULL));
a61af66fc99e Initial load
duke
parents:
diff changeset
1692 CHECK_BAILOUT();
a61af66fc99e Initial load
duke
parents:
diff changeset
1693
a61af66fc99e Initial load
duke
parents:
diff changeset
1694 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
1695 // printing
a61af66fc99e Initial load
duke
parents:
diff changeset
1696 if (PrintInlining && !res) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1697 // if it was successfully inlined, then it was already printed.
a61af66fc99e Initial load
duke
parents:
diff changeset
1698 print_inline_result(inline_target, res);
a61af66fc99e Initial load
duke
parents:
diff changeset
1699 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1700 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1701 clear_inline_bailout();
a61af66fc99e Initial load
duke
parents:
diff changeset
1702 if (res) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1703 // Register dependence if JVMTI has either breakpoint
a61af66fc99e Initial load
duke
parents:
diff changeset
1704 // setting or hotswapping of methods capabilities since they may
a61af66fc99e Initial load
duke
parents:
diff changeset
1705 // cause deoptimization.
780
c96bf21b756f 6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents: 726
diff changeset
1706 if (compilation()->env()->jvmti_can_hotswap_or_post_breakpoint()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1707 dependency_recorder()->assert_evol_method(inline_target);
a61af66fc99e Initial load
duke
parents:
diff changeset
1708 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1709 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
1710 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1711 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1712 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1713 // If we attempted an inline which did not succeed because of a
a61af66fc99e Initial load
duke
parents:
diff changeset
1714 // bailout during construction of the callee graph, the entire
a61af66fc99e Initial load
duke
parents:
diff changeset
1715 // compilation has to be aborted. This is fairly rare and currently
a61af66fc99e Initial load
duke
parents:
diff changeset
1716 // seems to only occur for jasm-generated classes which contain
a61af66fc99e Initial load
duke
parents:
diff changeset
1717 // jsr/ret pairs which are not associated with finally clauses and
a61af66fc99e Initial load
duke
parents:
diff changeset
1718 // do not have exception handlers in the containing method, and are
a61af66fc99e Initial load
duke
parents:
diff changeset
1719 // therefore not caught early enough to abort the inlining without
a61af66fc99e Initial load
duke
parents:
diff changeset
1720 // corrupting the graph. (We currently bail out with a non-empty
a61af66fc99e Initial load
duke
parents:
diff changeset
1721 // stack at a ret in these situations.)
a61af66fc99e Initial load
duke
parents:
diff changeset
1722 CHECK_BAILOUT();
a61af66fc99e Initial load
duke
parents:
diff changeset
1723
a61af66fc99e Initial load
duke
parents:
diff changeset
1724 // inlining not successful => standard invoke
1295
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1725 bool is_loaded = target->is_loaded();
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1726 bool has_receiver =
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1727 code == Bytecodes::_invokespecial ||
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1728 code == Bytecodes::_invokevirtual ||
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1729 code == Bytecodes::_invokeinterface;
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1730 bool is_invokedynamic = code == Bytecodes::_invokedynamic;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1731 ValueType* result_type = as_ValueType(target->return_type());
1295
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1732
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1733 // We require the debug info to be the "state before" because
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1734 // invokedynamics may deoptimize.
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1735 ValueStack* state_before = is_invokedynamic ? state()->copy() : NULL;
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1736
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1737 Values* args = state()->pop_arguments(target->arg_size_no_receiver());
1295
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1738 Value recv = has_receiver ? apop() : NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1739 int vtable_index = methodOopDesc::invalid_vtable_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
1740
a61af66fc99e Initial load
duke
parents:
diff changeset
1741 #ifdef SPARC
a61af66fc99e Initial load
duke
parents:
diff changeset
1742 // Currently only supported on Sparc.
a61af66fc99e Initial load
duke
parents:
diff changeset
1743 // The UseInlineCaches only controls dispatch to invokevirtuals for
a61af66fc99e Initial load
duke
parents:
diff changeset
1744 // loaded classes which we weren't able to statically bind.
a61af66fc99e Initial load
duke
parents:
diff changeset
1745 if (!UseInlineCaches && is_loaded && code == Bytecodes::_invokevirtual
a61af66fc99e Initial load
duke
parents:
diff changeset
1746 && !target->can_be_statically_bound()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1747 // Find a vtable index if one is available
a61af66fc99e Initial load
duke
parents:
diff changeset
1748 vtable_index = target->resolve_vtable_index(calling_klass, callee_holder);
a61af66fc99e Initial load
duke
parents:
diff changeset
1749 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1750 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1751
a61af66fc99e Initial load
duke
parents:
diff changeset
1752 if (recv != NULL &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1753 (code == Bytecodes::_invokespecial ||
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1754 !is_loaded || target->is_final())) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1755 // invokespecial always needs a NULL check. invokevirtual where
a61af66fc99e Initial load
duke
parents:
diff changeset
1756 // the target is final or where it's not known that whether the
a61af66fc99e Initial load
duke
parents:
diff changeset
1757 // target is final requires a NULL check. Otherwise normal
a61af66fc99e Initial load
duke
parents:
diff changeset
1758 // invokevirtual will perform the null check during the lookup
a61af66fc99e Initial load
duke
parents:
diff changeset
1759 // logic or the unverified entry point. Profiling of calls
a61af66fc99e Initial load
duke
parents:
diff changeset
1760 // requires that the null check is performed in all cases.
a61af66fc99e Initial load
duke
parents:
diff changeset
1761 null_check(recv);
a61af66fc99e Initial load
duke
parents:
diff changeset
1762 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1763
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1764 if (is_profiling()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1765 if (recv != NULL && profile_calls()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1766 null_check(recv);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1767 }
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1768 // Note that we'd collect profile data in this method if we wanted it.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1769 compilation()->set_would_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1770
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1771 if (profile_calls()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1772 assert(cha_monomorphic_target == NULL || exact_target == NULL, "both can not be set");
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1773 ciKlass* target_klass = NULL;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1774 if (cha_monomorphic_target != NULL) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1775 target_klass = cha_monomorphic_target->holder();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1776 } else if (exact_target != NULL) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1777 target_klass = exact_target->holder();
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1778 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1779 profile_call(recv, target_klass);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1780 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1781 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1782
1295
3cf667df43ef 6919934: JSR 292 needs to support x86 C1
twisti
parents: 1060
diff changeset
1783 Invoke* result = new Invoke(code, result_type, recv, args, vtable_index, target, state_before);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1784 // push result
a61af66fc99e Initial load
duke
parents:
diff changeset
1785 append_split(result);
a61af66fc99e Initial load
duke
parents:
diff changeset
1786
a61af66fc99e Initial load
duke
parents:
diff changeset
1787 if (result_type != voidType) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1788 if (method()->is_strict()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1789 push(result_type, round_fp(result));
a61af66fc99e Initial load
duke
parents:
diff changeset
1790 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1791 push(result_type, result);
a61af66fc99e Initial load
duke
parents:
diff changeset
1792 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1793 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1794 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1795
a61af66fc99e Initial load
duke
parents:
diff changeset
1796
a61af66fc99e Initial load
duke
parents:
diff changeset
1797 void GraphBuilder::new_instance(int klass_index) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1798 bool will_link;
a61af66fc99e Initial load
duke
parents:
diff changeset
1799 ciKlass* klass = stream()->get_klass(will_link);
a61af66fc99e Initial load
duke
parents:
diff changeset
1800 assert(klass->is_instance_klass(), "must be an instance klass");
a61af66fc99e Initial load
duke
parents:
diff changeset
1801 NewInstance* new_instance = new NewInstance(klass->as_instance_klass());
a61af66fc99e Initial load
duke
parents:
diff changeset
1802 _memory->new_instance(new_instance);
a61af66fc99e Initial load
duke
parents:
diff changeset
1803 apush(append_split(new_instance));
a61af66fc99e Initial load
duke
parents:
diff changeset
1804 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1805
a61af66fc99e Initial load
duke
parents:
diff changeset
1806
a61af66fc99e Initial load
duke
parents:
diff changeset
1807 void GraphBuilder::new_type_array() {
a61af66fc99e Initial load
duke
parents:
diff changeset
1808 apush(append_split(new NewTypeArray(ipop(), (BasicType)stream()->get_index())));
a61af66fc99e Initial load
duke
parents:
diff changeset
1809 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1810
a61af66fc99e Initial load
duke
parents:
diff changeset
1811
a61af66fc99e Initial load
duke
parents:
diff changeset
1812 void GraphBuilder::new_object_array() {
a61af66fc99e Initial load
duke
parents:
diff changeset
1813 bool will_link;
a61af66fc99e Initial load
duke
parents:
diff changeset
1814 ciKlass* klass = stream()->get_klass(will_link);
a61af66fc99e Initial load
duke
parents:
diff changeset
1815 ValueStack* state_before = !klass->is_loaded() || PatchALot ? state()->copy() : NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1816 NewArray* n = new NewObjectArray(klass, ipop(), state_before);
a61af66fc99e Initial load
duke
parents:
diff changeset
1817 apush(append_split(n));
a61af66fc99e Initial load
duke
parents:
diff changeset
1818 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1819
a61af66fc99e Initial load
duke
parents:
diff changeset
1820
a61af66fc99e Initial load
duke
parents:
diff changeset
1821 bool GraphBuilder::direct_compare(ciKlass* k) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1822 if (k->is_loaded() && k->is_instance_klass() && !UseSlowPath) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1823 ciInstanceKlass* ik = k->as_instance_klass();
a61af66fc99e Initial load
duke
parents:
diff changeset
1824 if (ik->is_final()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1825 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1826 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1827 if (DeoptC1 && UseCHA && !(ik->has_subklass() || ik->is_interface())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1828 // test class is leaf class
a61af66fc99e Initial load
duke
parents:
diff changeset
1829 dependency_recorder()->assert_leaf_type(ik);
a61af66fc99e Initial load
duke
parents:
diff changeset
1830 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1831 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1832 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1833 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1834 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1835 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1836
a61af66fc99e Initial load
duke
parents:
diff changeset
1837
a61af66fc99e Initial load
duke
parents:
diff changeset
1838 void GraphBuilder::check_cast(int klass_index) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1839 bool will_link;
a61af66fc99e Initial load
duke
parents:
diff changeset
1840 ciKlass* klass = stream()->get_klass(will_link);
a61af66fc99e Initial load
duke
parents:
diff changeset
1841 ValueStack* state_before = !klass->is_loaded() || PatchALot ? state()->copy() : NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1842 CheckCast* c = new CheckCast(klass, apop(), state_before);
a61af66fc99e Initial load
duke
parents:
diff changeset
1843 apush(append_split(c));
a61af66fc99e Initial load
duke
parents:
diff changeset
1844 c->set_direct_compare(direct_compare(klass));
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1845
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1846 if (is_profiling()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1847 // Note that we'd collect profile data in this method if we wanted it.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1848 compilation()->set_would_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1849
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1850 if (profile_checkcasts()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1851 c->set_profiled_method(method());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1852 c->set_profiled_bci(bci());
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1853 c->set_should_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1854 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1855 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1856 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1857
a61af66fc99e Initial load
duke
parents:
diff changeset
1858
a61af66fc99e Initial load
duke
parents:
diff changeset
1859 void GraphBuilder::instance_of(int klass_index) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1860 bool will_link;
a61af66fc99e Initial load
duke
parents:
diff changeset
1861 ciKlass* klass = stream()->get_klass(will_link);
a61af66fc99e Initial load
duke
parents:
diff changeset
1862 ValueStack* state_before = !klass->is_loaded() || PatchALot ? state()->copy() : NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1863 InstanceOf* i = new InstanceOf(klass, apop(), state_before);
a61af66fc99e Initial load
duke
parents:
diff changeset
1864 ipush(append_split(i));
a61af66fc99e Initial load
duke
parents:
diff changeset
1865 i->set_direct_compare(direct_compare(klass));
1791
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1866
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1867 if (is_profiling()) {
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1868 // Note that we'd collect profile data in this method if we wanted it.
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1869 compilation()->set_would_profile(true);
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1870
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1871 if (profile_checkcasts()) {
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1872 i->set_profiled_method(method());
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1873 i->set_profiled_bci(bci());
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1874 i->set_should_profile(true);
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1875 }
3a294e483abc 6919069: client compiler needs to capture more profile information for tiered work
iveresov
parents: 1783
diff changeset
1876 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1877 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1878
a61af66fc99e Initial load
duke
parents:
diff changeset
1879
a61af66fc99e Initial load
duke
parents:
diff changeset
1880 void GraphBuilder::monitorenter(Value x, int bci) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1881 // save state before locking in case of deoptimization after a NullPointerException
a61af66fc99e Initial load
duke
parents:
diff changeset
1882 ValueStack* lock_stack_before = lock_stack();
a61af66fc99e Initial load
duke
parents:
diff changeset
1883 append_with_bci(new MonitorEnter(x, state()->lock(scope(), x), lock_stack_before), bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
1884 kill_all();
a61af66fc99e Initial load
duke
parents:
diff changeset
1885 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1886
a61af66fc99e Initial load
duke
parents:
diff changeset
1887
a61af66fc99e Initial load
duke
parents:
diff changeset
1888 void GraphBuilder::monitorexit(Value x, int bci) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1889 // Note: the comment below is only relevant for the case where we do
a61af66fc99e Initial load
duke
parents:
diff changeset
1890 // not deoptimize due to asynchronous exceptions (!(DeoptC1 &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1891 // DeoptOnAsyncException), which is not used anymore)
a61af66fc99e Initial load
duke
parents:
diff changeset
1892
a61af66fc99e Initial load
duke
parents:
diff changeset
1893 // Note: Potentially, the monitor state in an exception handler
a61af66fc99e Initial load
duke
parents:
diff changeset
1894 // can be wrong due to wrong 'initialization' of the handler
a61af66fc99e Initial load
duke
parents:
diff changeset
1895 // via a wrong asynchronous exception path. This can happen,
a61af66fc99e Initial load
duke
parents:
diff changeset
1896 // if the exception handler range for asynchronous exceptions
a61af66fc99e Initial load
duke
parents:
diff changeset
1897 // is too long (see also java bug 4327029, and comment in
a61af66fc99e Initial load
duke
parents:
diff changeset
1898 // GraphBuilder::handle_exception()). This may cause 'under-
a61af66fc99e Initial load
duke
parents:
diff changeset
1899 // flow' of the monitor stack => bailout instead.
a61af66fc99e Initial load
duke
parents:
diff changeset
1900 if (state()->locks_size() < 1) BAILOUT("monitor stack underflow");
a61af66fc99e Initial load
duke
parents:
diff changeset
1901 append_with_bci(new MonitorExit(x, state()->unlock()), bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
1902 kill_all();
a61af66fc99e Initial load
duke
parents:
diff changeset
1903 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1904
a61af66fc99e Initial load
duke
parents:
diff changeset
1905
a61af66fc99e Initial load
duke
parents:
diff changeset
1906 void GraphBuilder::new_multi_array(int dimensions) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1907 bool will_link;
a61af66fc99e Initial load
duke
parents:
diff changeset
1908 ciKlass* klass = stream()->get_klass(will_link);
a61af66fc99e Initial load
duke
parents:
diff changeset
1909 ValueStack* state_before = !klass->is_loaded() || PatchALot ? state()->copy() : NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1910
a61af66fc99e Initial load
duke
parents:
diff changeset
1911 Values* dims = new Values(dimensions, NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1912 // fill in all dimensions
a61af66fc99e Initial load
duke
parents:
diff changeset
1913 int i = dimensions;
a61af66fc99e Initial load
duke
parents:
diff changeset
1914 while (i-- > 0) dims->at_put(i, ipop());
a61af66fc99e Initial load
duke
parents:
diff changeset
1915 // create array
a61af66fc99e Initial load
duke
parents:
diff changeset
1916 NewArray* n = new NewMultiArray(klass, dims, state_before);
a61af66fc99e Initial load
duke
parents:
diff changeset
1917 apush(append_split(n));
a61af66fc99e Initial load
duke
parents:
diff changeset
1918 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1919
a61af66fc99e Initial load
duke
parents:
diff changeset
1920
a61af66fc99e Initial load
duke
parents:
diff changeset
1921 void GraphBuilder::throw_op(int bci) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1922 // We require that the debug info for a Throw be the "state before"
a61af66fc99e Initial load
duke
parents:
diff changeset
1923 // the Throw (i.e., exception oop is still on TOS)
a61af66fc99e Initial load
duke
parents:
diff changeset
1924 ValueStack* state_before = state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
1925 Throw* t = new Throw(apop(), state_before);
a61af66fc99e Initial load
duke
parents:
diff changeset
1926 append_with_bci(t, bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
1927 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1928
a61af66fc99e Initial load
duke
parents:
diff changeset
1929
a61af66fc99e Initial load
duke
parents:
diff changeset
1930 Value GraphBuilder::round_fp(Value fp_value) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1931 // no rounding needed if SSE2 is used
a61af66fc99e Initial load
duke
parents:
diff changeset
1932 if (RoundFPResults && UseSSE < 2) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1933 // Must currently insert rounding node for doubleword values that
a61af66fc99e Initial load
duke
parents:
diff changeset
1934 // are results of expressions (i.e., not loads from memory or
a61af66fc99e Initial load
duke
parents:
diff changeset
1935 // constants)
a61af66fc99e Initial load
duke
parents:
diff changeset
1936 if (fp_value->type()->tag() == doubleTag &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1937 fp_value->as_Constant() == NULL &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1938 fp_value->as_Local() == NULL && // method parameters need no rounding
a61af66fc99e Initial load
duke
parents:
diff changeset
1939 fp_value->as_RoundFP() == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1940 return append(new RoundFP(fp_value));
a61af66fc99e Initial load
duke
parents:
diff changeset
1941 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1942 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1943 return fp_value;
a61af66fc99e Initial load
duke
parents:
diff changeset
1944 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1945
a61af66fc99e Initial load
duke
parents:
diff changeset
1946
a61af66fc99e Initial load
duke
parents:
diff changeset
1947 Instruction* GraphBuilder::append_with_bci(Instruction* instr, int bci) {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
1948 Canonicalizer canon(compilation(), instr, bci);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1949 Instruction* i1 = canon.canonical();
a61af66fc99e Initial load
duke
parents:
diff changeset
1950 if (i1->bci() != -99) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1951 // Canonicalizer returned an instruction which was already
a61af66fc99e Initial load
duke
parents:
diff changeset
1952 // appended so simply return it.
a61af66fc99e Initial load
duke
parents:
diff changeset
1953 return i1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1954 } else if (UseLocalValueNumbering) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1955 // Lookup the instruction in the ValueMap and add it to the map if
a61af66fc99e Initial load
duke
parents:
diff changeset
1956 // it's not found.
a61af66fc99e Initial load
duke
parents:
diff changeset
1957 Instruction* i2 = vmap()->find_insert(i1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1958 if (i2 != i1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1959 // found an entry in the value map, so just return it.
a61af66fc99e Initial load
duke
parents:
diff changeset
1960 assert(i2->bci() != -1, "should already be linked");
a61af66fc99e Initial load
duke
parents:
diff changeset
1961 return i2;
a61af66fc99e Initial load
duke
parents:
diff changeset
1962 }
459
3a86a8dcf27c 6756768: C1 generates invalid code
never
parents: 0
diff changeset
1963 ValueNumberingEffects vne(vmap());
3a86a8dcf27c 6756768: C1 generates invalid code
never
parents: 0
diff changeset
1964 i1->visit(&vne);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1965 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1966
a61af66fc99e Initial load
duke
parents:
diff changeset
1967 if (i1->as_Phi() == NULL && i1->as_Local() == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1968 // i1 was not eliminated => append it
a61af66fc99e Initial load
duke
parents:
diff changeset
1969 assert(i1->next() == NULL, "shouldn't already be linked");
a61af66fc99e Initial load
duke
parents:
diff changeset
1970 _last = _last->set_next(i1, canon.bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
1971 if (++_instruction_count >= InstructionCountCutoff
a61af66fc99e Initial load
duke
parents:
diff changeset
1972 && !bailed_out()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1973 // set the bailout state but complete normal processing. We
a61af66fc99e Initial load
duke
parents:
diff changeset
1974 // might do a little more work before noticing the bailout so we
a61af66fc99e Initial load
duke
parents:
diff changeset
1975 // want processing to continue normally until it's noticed.
a61af66fc99e Initial load
duke
parents:
diff changeset
1976 bailout("Method and/or inlining is too large");
a61af66fc99e Initial load
duke
parents:
diff changeset
1977 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1978
a61af66fc99e Initial load
duke
parents:
diff changeset
1979 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
1980 if (PrintIRDuringConstruction) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1981 InstructionPrinter ip;
a61af66fc99e Initial load
duke
parents:
diff changeset
1982 ip.print_line(i1);
a61af66fc99e Initial load
duke
parents:
diff changeset
1983 if (Verbose) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1984 state()->print();
a61af66fc99e Initial load
duke
parents:
diff changeset
1985 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1986 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1987 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1988 assert(_last == i1, "adjust code below");
a61af66fc99e Initial load
duke
parents:
diff changeset
1989 StateSplit* s = i1->as_StateSplit();
a61af66fc99e Initial load
duke
parents:
diff changeset
1990 if (s != NULL && i1->as_BlockEnd() == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1991 if (EliminateFieldAccess) {
459
3a86a8dcf27c 6756768: C1 generates invalid code
never
parents: 0
diff changeset
1992 Intrinsic* intrinsic = s->as_Intrinsic();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1993 if (s->as_Invoke() != NULL || (intrinsic && !intrinsic->preserves_state())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1994 _memory->kill();
a61af66fc99e Initial load
duke
parents:
diff changeset
1995 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1996 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1997 s->set_state(state()->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
1998 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1999 // set up exception handlers for this instruction if necessary
a61af66fc99e Initial load
duke
parents:
diff changeset
2000 if (i1->can_trap()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2001 assert(exception_state() != NULL || !has_handler(), "must have setup exception state");
a61af66fc99e Initial load
duke
parents:
diff changeset
2002 i1->set_exception_handlers(handle_exception(bci));
a61af66fc99e Initial load
duke
parents:
diff changeset
2003 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2004 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2005 return i1;
a61af66fc99e Initial load
duke
parents:
diff changeset
2006 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2007
a61af66fc99e Initial load
duke
parents:
diff changeset
2008
a61af66fc99e Initial load
duke
parents:
diff changeset
2009 Instruction* GraphBuilder::append(Instruction* instr) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2010 assert(instr->as_StateSplit() == NULL || instr->as_BlockEnd() != NULL, "wrong append used");
a61af66fc99e Initial load
duke
parents:
diff changeset
2011 return append_with_bci(instr, bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
2012 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2013
a61af66fc99e Initial load
duke
parents:
diff changeset
2014
a61af66fc99e Initial load
duke
parents:
diff changeset
2015 Instruction* GraphBuilder::append_split(StateSplit* instr) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2016 return append_with_bci(instr, bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
2017 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2018
a61af66fc99e Initial load
duke
parents:
diff changeset
2019
a61af66fc99e Initial load
duke
parents:
diff changeset
2020 void GraphBuilder::null_check(Value value) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2021 if (value->as_NewArray() != NULL || value->as_NewInstance() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2022 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
2023 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2024 Constant* con = value->as_Constant();
a61af66fc99e Initial load
duke
parents:
diff changeset
2025 if (con) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2026 ObjectType* c = con->type()->as_ObjectType();
a61af66fc99e Initial load
duke
parents:
diff changeset
2027 if (c && c->is_loaded()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2028 ObjectConstant* oc = c->as_ObjectConstant();
a61af66fc99e Initial load
duke
parents:
diff changeset
2029 if (!oc || !oc->value()->is_null_object()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2030 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
2031 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2032 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2033 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2034 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2035 append(new NullCheck(value, lock_stack()));
a61af66fc99e Initial load
duke
parents:
diff changeset
2036 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2037
a61af66fc99e Initial load
duke
parents:
diff changeset
2038
a61af66fc99e Initial load
duke
parents:
diff changeset
2039
a61af66fc99e Initial load
duke
parents:
diff changeset
2040 XHandlers* GraphBuilder::handle_exception(int cur_bci) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2041 // fast path if it is guaranteed that no exception handlers are present
a61af66fc99e Initial load
duke
parents:
diff changeset
2042 if (!has_handler()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2043 // TODO: check if return NULL is possible (avoids empty lists)
a61af66fc99e Initial load
duke
parents:
diff changeset
2044 return new XHandlers();
a61af66fc99e Initial load
duke
parents:
diff changeset
2045 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2046
a61af66fc99e Initial load
duke
parents:
diff changeset
2047 XHandlers* exception_handlers = new XHandlers();
a61af66fc99e Initial load
duke
parents:
diff changeset
2048 ScopeData* cur_scope_data = scope_data();
a61af66fc99e Initial load
duke
parents:
diff changeset
2049 ValueStack* s = exception_state();
a61af66fc99e Initial load
duke
parents:
diff changeset
2050 int scope_count = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2051
a61af66fc99e Initial load
duke
parents:
diff changeset
2052 assert(s != NULL, "exception state must be set");
a61af66fc99e Initial load
duke
parents:
diff changeset
2053 do {
a61af66fc99e Initial load
duke
parents:
diff changeset
2054 assert(cur_scope_data->scope() == s->scope(), "scopes do not match");
a61af66fc99e Initial load
duke
parents:
diff changeset
2055 assert(cur_bci == SynchronizationEntryBCI || cur_bci == cur_scope_data->stream()->cur_bci(), "invalid bci");
a61af66fc99e Initial load
duke
parents:
diff changeset
2056
a61af66fc99e Initial load
duke
parents:
diff changeset
2057 // join with all potential exception handlers
a61af66fc99e Initial load
duke
parents:
diff changeset
2058 XHandlers* list = cur_scope_data->xhandlers();
a61af66fc99e Initial load
duke
parents:
diff changeset
2059 const int n = list->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
2060 for (int i = 0; i < n; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2061 XHandler* h = list->handler_at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
2062 if (h->covers(cur_bci)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2063 // h is a potential exception handler => join it
a61af66fc99e Initial load
duke
parents:
diff changeset
2064 compilation()->set_has_exception_handlers(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
2065
a61af66fc99e Initial load
duke
parents:
diff changeset
2066 BlockBegin* entry = h->entry_block();
a61af66fc99e Initial load
duke
parents:
diff changeset
2067 if (entry == block()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2068 // It's acceptable for an exception handler to cover itself
a61af66fc99e Initial load
duke
parents:
diff changeset
2069 // but we don't handle that in the parser currently. It's
a61af66fc99e Initial load
duke
parents:
diff changeset
2070 // very rare so we bailout instead of trying to handle it.
a61af66fc99e Initial load
duke
parents:
diff changeset
2071 BAILOUT_("exception handler covers itself", exception_handlers);
a61af66fc99e Initial load
duke
parents:
diff changeset
2072 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2073 assert(entry->bci() == h->handler_bci(), "must match");
a61af66fc99e Initial load
duke
parents:
diff changeset
2074 assert(entry->bci() == -1 || entry == cur_scope_data->block_at(entry->bci()), "blocks must correspond");
a61af66fc99e Initial load
duke
parents:
diff changeset
2075
a61af66fc99e Initial load
duke
parents:
diff changeset
2076 // previously this was a BAILOUT, but this is not necessary
a61af66fc99e Initial load
duke
parents:
diff changeset
2077 // now because asynchronous exceptions are not handled this way.
a61af66fc99e Initial load
duke
parents:
diff changeset
2078 assert(entry->state() == NULL || s->locks_size() == entry->state()->locks_size(), "locks do not match");
a61af66fc99e Initial load
duke
parents:
diff changeset
2079
a61af66fc99e Initial load
duke
parents:
diff changeset
2080 // xhandler start with an empty expression stack
a61af66fc99e Initial load
duke
parents:
diff changeset
2081 s->truncate_stack(cur_scope_data->caller_stack_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
2082
a61af66fc99e Initial load
duke
parents:
diff changeset
2083 // Note: Usually this join must work. However, very
a61af66fc99e Initial load
duke
parents:
diff changeset
2084 // complicated jsr-ret structures where we don't ret from
a61af66fc99e Initial load
duke
parents:
diff changeset
2085 // the subroutine can cause the objects on the monitor
a61af66fc99e Initial load
duke
parents:
diff changeset
2086 // stacks to not match because blocks can be parsed twice.
a61af66fc99e Initial load
duke
parents:
diff changeset
2087 // The only test case we've seen so far which exhibits this
a61af66fc99e Initial load
duke
parents:
diff changeset
2088 // problem is caught by the infinite recursion test in
a61af66fc99e Initial load
duke
parents:
diff changeset
2089 // GraphBuilder::jsr() if the join doesn't work.
a61af66fc99e Initial load
duke
parents:
diff changeset
2090 if (!entry->try_merge(s)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2091 BAILOUT_("error while joining with exception handler, prob. due to complicated jsr/rets", exception_handlers);
a61af66fc99e Initial load
duke
parents:
diff changeset
2092 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2093
a61af66fc99e Initial load
duke
parents:
diff changeset
2094 // add current state for correct handling of phi functions at begin of xhandler
a61af66fc99e Initial load
duke
parents:
diff changeset
2095 int phi_operand = entry->add_exception_state(s);
a61af66fc99e Initial load
duke
parents:
diff changeset
2096
a61af66fc99e Initial load
duke
parents:
diff changeset
2097 // add entry to the list of xhandlers of this block
a61af66fc99e Initial load
duke
parents:
diff changeset
2098 _block->add_exception_handler(entry);
a61af66fc99e Initial load
duke
parents:
diff changeset
2099
a61af66fc99e Initial load
duke
parents:
diff changeset
2100 // add back-edge from xhandler entry to this block
a61af66fc99e Initial load
duke
parents:
diff changeset
2101 if (!entry->is_predecessor(_block)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2102 entry->add_predecessor(_block);
a61af66fc99e Initial load
duke
parents:
diff changeset
2103 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2104
a61af66fc99e Initial load
duke
parents:
diff changeset
2105 // clone XHandler because phi_operand and scope_count can not be shared
a61af66fc99e Initial load
duke
parents:
diff changeset
2106 XHandler* new_xhandler = new XHandler(h);
a61af66fc99e Initial load
duke
parents:
diff changeset
2107 new_xhandler->set_phi_operand(phi_operand);
a61af66fc99e Initial load
duke
parents:
diff changeset
2108 new_xhandler->set_scope_count(scope_count);
a61af66fc99e Initial load
duke
parents:
diff changeset
2109 exception_handlers->append(new_xhandler);
a61af66fc99e Initial load
duke
parents:
diff changeset
2110
a61af66fc99e Initial load
duke
parents:
diff changeset
2111 // fill in exception handler subgraph lazily
a61af66fc99e Initial load
duke
parents:
diff changeset
2112 assert(!entry->is_set(BlockBegin::was_visited_flag), "entry must not be visited yet");
a61af66fc99e Initial load
duke
parents:
diff changeset
2113 cur_scope_data->add_to_work_list(entry);
a61af66fc99e Initial load
duke
parents:
diff changeset
2114
a61af66fc99e Initial load
duke
parents:
diff changeset
2115 // stop when reaching catchall
a61af66fc99e Initial load
duke
parents:
diff changeset
2116 if (h->catch_type() == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2117 return exception_handlers;
a61af66fc99e Initial load
duke
parents:
diff changeset
2118 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2119 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2120 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2121
a61af66fc99e Initial load
duke
parents:
diff changeset
2122 // Set up iteration for next time.
a61af66fc99e Initial load
duke
parents:
diff changeset
2123 // If parsing a jsr, do not grab exception handlers from the
a61af66fc99e Initial load
duke
parents:
diff changeset
2124 // parent scopes for this method (already got them, and they
a61af66fc99e Initial load
duke
parents:
diff changeset
2125 // needed to be cloned)
a61af66fc99e Initial load
duke
parents:
diff changeset
2126 if (cur_scope_data->parsing_jsr()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2127 IRScope* tmp_scope = cur_scope_data->scope();
a61af66fc99e Initial load
duke
parents:
diff changeset
2128 while (cur_scope_data->parent() != NULL &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2129 cur_scope_data->parent()->scope() == tmp_scope) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2130 cur_scope_data = cur_scope_data->parent();
a61af66fc99e Initial load
duke
parents:
diff changeset
2131 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2132 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2133 if (cur_scope_data != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2134 if (cur_scope_data->parent() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2135 // must use pop_scope instead of caller_state to preserve all monitors
a61af66fc99e Initial load
duke
parents:
diff changeset
2136 s = s->pop_scope();
a61af66fc99e Initial load
duke
parents:
diff changeset
2137 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2138 cur_bci = cur_scope_data->scope()->caller_bci();
a61af66fc99e Initial load
duke
parents:
diff changeset
2139 cur_scope_data = cur_scope_data->parent();
a61af66fc99e Initial load
duke
parents:
diff changeset
2140 scope_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
2141 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2142 } while (cur_scope_data != NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2143
a61af66fc99e Initial load
duke
parents:
diff changeset
2144 return exception_handlers;
a61af66fc99e Initial load
duke
parents:
diff changeset
2145 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2146
a61af66fc99e Initial load
duke
parents:
diff changeset
2147
a61af66fc99e Initial load
duke
parents:
diff changeset
2148 // Helper class for simplifying Phis.
a61af66fc99e Initial load
duke
parents:
diff changeset
2149 class PhiSimplifier : public BlockClosure {
a61af66fc99e Initial load
duke
parents:
diff changeset
2150 private:
a61af66fc99e Initial load
duke
parents:
diff changeset
2151 bool _has_substitutions;
a61af66fc99e Initial load
duke
parents:
diff changeset
2152 Value simplify(Value v);
a61af66fc99e Initial load
duke
parents:
diff changeset
2153
a61af66fc99e Initial load
duke
parents:
diff changeset
2154 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
2155 PhiSimplifier(BlockBegin* start) : _has_substitutions(false) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2156 start->iterate_preorder(this);
a61af66fc99e Initial load
duke
parents:
diff changeset
2157 if (_has_substitutions) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2158 SubstitutionResolver sr(start);
a61af66fc99e Initial load
duke
parents:
diff changeset
2159 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2160 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2161 void block_do(BlockBegin* b);
a61af66fc99e Initial load
duke
parents:
diff changeset
2162 bool has_substitutions() const { return _has_substitutions; }
a61af66fc99e Initial load
duke
parents:
diff changeset
2163 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2164
a61af66fc99e Initial load
duke
parents:
diff changeset
2165
a61af66fc99e Initial load
duke
parents:
diff changeset
2166 Value PhiSimplifier::simplify(Value v) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2167 Phi* phi = v->as_Phi();
a61af66fc99e Initial load
duke
parents:
diff changeset
2168
a61af66fc99e Initial load
duke
parents:
diff changeset
2169 if (phi == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2170 // no phi function
a61af66fc99e Initial load
duke
parents:
diff changeset
2171 return v;
a61af66fc99e Initial load
duke
parents:
diff changeset
2172 } else if (v->has_subst()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2173 // already substituted; subst can be phi itself -> simplify
a61af66fc99e Initial load
duke
parents:
diff changeset
2174 return simplify(v->subst());
a61af66fc99e Initial load
duke
parents:
diff changeset
2175 } else if (phi->is_set(Phi::cannot_simplify)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2176 // already tried to simplify phi before
a61af66fc99e Initial load
duke
parents:
diff changeset
2177 return phi;
a61af66fc99e Initial load
duke
parents:
diff changeset
2178 } else if (phi->is_set(Phi::visited)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2179 // break cycles in phi functions
a61af66fc99e Initial load
duke
parents:
diff changeset
2180 return phi;
a61af66fc99e Initial load
duke
parents:
diff changeset
2181 } else if (phi->type()->is_illegal()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2182 // illegal phi functions are ignored anyway
a61af66fc99e Initial load
duke
parents:
diff changeset
2183 return phi;
a61af66fc99e Initial load
duke
parents:
diff changeset
2184
a61af66fc99e Initial load
duke
parents:
diff changeset
2185 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2186 // mark phi function as processed to break cycles in phi functions
a61af66fc99e Initial load
duke
parents:
diff changeset
2187 phi->set(Phi::visited);
a61af66fc99e Initial load
duke
parents:
diff changeset
2188
a61af66fc99e Initial load
duke
parents:
diff changeset
2189 // simplify x = [y, x] and x = [y, y] to y
a61af66fc99e Initial load
duke
parents:
diff changeset
2190 Value subst = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2191 int opd_count = phi->operand_count();
a61af66fc99e Initial load
duke
parents:
diff changeset
2192 for (int i = 0; i < opd_count; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2193 Value opd = phi->operand_at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
2194 assert(opd != NULL, "Operand must exist!");
a61af66fc99e Initial load
duke
parents:
diff changeset
2195
a61af66fc99e Initial load
duke
parents:
diff changeset
2196 if (opd->type()->is_illegal()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2197 // if one operand is illegal, the entire phi function is illegal
a61af66fc99e Initial load
duke
parents:
diff changeset
2198 phi->make_illegal();
a61af66fc99e Initial load
duke
parents:
diff changeset
2199 phi->clear(Phi::visited);
a61af66fc99e Initial load
duke
parents:
diff changeset
2200 return phi;
a61af66fc99e Initial load
duke
parents:
diff changeset
2201 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2202
a61af66fc99e Initial load
duke
parents:
diff changeset
2203 Value new_opd = simplify(opd);
a61af66fc99e Initial load
duke
parents:
diff changeset
2204 assert(new_opd != NULL, "Simplified operand must exist!");
a61af66fc99e Initial load
duke
parents:
diff changeset
2205
a61af66fc99e Initial load
duke
parents:
diff changeset
2206 if (new_opd != phi && new_opd != subst) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2207 if (subst == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2208 subst = new_opd;
a61af66fc99e Initial load
duke
parents:
diff changeset
2209 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2210 // no simplification possible
a61af66fc99e Initial load
duke
parents:
diff changeset
2211 phi->set(Phi::cannot_simplify);
a61af66fc99e Initial load
duke
parents:
diff changeset
2212 phi->clear(Phi::visited);
a61af66fc99e Initial load
duke
parents:
diff changeset
2213 return phi;
a61af66fc99e Initial load
duke
parents:
diff changeset
2214 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2215 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2216 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2217
a61af66fc99e Initial load
duke
parents:
diff changeset
2218 // sucessfully simplified phi function
a61af66fc99e Initial load
duke
parents:
diff changeset
2219 assert(subst != NULL, "illegal phi function");
a61af66fc99e Initial load
duke
parents:
diff changeset
2220 _has_substitutions = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
2221 phi->clear(Phi::visited);
a61af66fc99e Initial load
duke
parents:
diff changeset
2222 phi->set_subst(subst);
a61af66fc99e Initial load
duke
parents:
diff changeset
2223
a61af66fc99e Initial load
duke
parents:
diff changeset
2224 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
2225 if (PrintPhiFunctions) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2226 tty->print_cr("simplified phi function %c%d to %c%d (Block B%d)", phi->type()->tchar(), phi->id(), subst->type()->tchar(), subst->id(), phi->block()->block_id());
a61af66fc99e Initial load
duke
parents:
diff changeset
2227 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2228 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
2229
a61af66fc99e Initial load
duke
parents:
diff changeset
2230 return subst;
a61af66fc99e Initial load
duke
parents:
diff changeset
2231 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2232 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2233
a61af66fc99e Initial load
duke
parents:
diff changeset
2234
a61af66fc99e Initial load
duke
parents:
diff changeset
2235 void PhiSimplifier::block_do(BlockBegin* b) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2236 for_each_phi_fun(b, phi,
a61af66fc99e Initial load
duke
parents:
diff changeset
2237 simplify(phi);
a61af66fc99e Initial load
duke
parents:
diff changeset
2238 );
a61af66fc99e Initial load
duke
parents:
diff changeset
2239
a61af66fc99e Initial load
duke
parents:
diff changeset
2240 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
2241 for_each_phi_fun(b, phi,
a61af66fc99e Initial load
duke
parents:
diff changeset
2242 assert(phi->operand_count() != 1 || phi->subst() != phi, "missed trivial simplification");
a61af66fc99e Initial load
duke
parents:
diff changeset
2243 );
a61af66fc99e Initial load
duke
parents:
diff changeset
2244
a61af66fc99e Initial load
duke
parents:
diff changeset
2245 ValueStack* state = b->state()->caller_state();
a61af66fc99e Initial load
duke
parents:
diff changeset
2246 int index;
a61af66fc99e Initial load
duke
parents:
diff changeset
2247 Value value;
a61af66fc99e Initial load
duke
parents:
diff changeset
2248 for_each_state(state) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2249 for_each_local_value(state, index, value) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2250 Phi* phi = value->as_Phi();
a61af66fc99e Initial load
duke
parents:
diff changeset
2251 assert(phi == NULL || phi->block() != b, "must not have phi function to simplify in caller state");
a61af66fc99e Initial load
duke
parents:
diff changeset
2252 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2253 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2254 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
2255 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2256
a61af66fc99e Initial load
duke
parents:
diff changeset
2257 // This method is called after all blocks are filled with HIR instructions
a61af66fc99e Initial load
duke
parents:
diff changeset
2258 // It eliminates all Phi functions of the form x = [y, y] and x = [y, x]
a61af66fc99e Initial load
duke
parents:
diff changeset
2259 void GraphBuilder::eliminate_redundant_phis(BlockBegin* start) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2260 PhiSimplifier simplifier(start);
a61af66fc99e Initial load
duke
parents:
diff changeset
2261 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2262
a61af66fc99e Initial load
duke
parents:
diff changeset
2263
a61af66fc99e Initial load
duke
parents:
diff changeset
2264 void GraphBuilder::connect_to_end(BlockBegin* beg) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2265 // setup iteration
a61af66fc99e Initial load
duke
parents:
diff changeset
2266 kill_all();
a61af66fc99e Initial load
duke
parents:
diff changeset
2267 _block = beg;
a61af66fc99e Initial load
duke
parents:
diff changeset
2268 _state = beg->state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
2269 _last = beg;
a61af66fc99e Initial load
duke
parents:
diff changeset
2270 iterate_bytecodes_for_block(beg->bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
2271 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2272
a61af66fc99e Initial load
duke
parents:
diff changeset
2273
a61af66fc99e Initial load
duke
parents:
diff changeset
2274 BlockEnd* GraphBuilder::iterate_bytecodes_for_block(int bci) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2275 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
2276 if (PrintIRDuringConstruction) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2277 tty->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
2278 InstructionPrinter ip;
a61af66fc99e Initial load
duke
parents:
diff changeset
2279 ip.print_instr(_block); tty->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
2280 ip.print_stack(_block->state()); tty->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
2281 ip.print_inline_level(_block);
a61af66fc99e Initial load
duke
parents:
diff changeset
2282 ip.print_head();
a61af66fc99e Initial load
duke
parents:
diff changeset
2283 tty->print_cr("locals size: %d stack size: %d", state()->locals_size(), state()->stack_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
2284 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2285 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
2286 _skip_block = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2287 assert(state() != NULL, "ValueStack missing!");
a61af66fc99e Initial load
duke
parents:
diff changeset
2288 ciBytecodeStream s(method());
a61af66fc99e Initial load
duke
parents:
diff changeset
2289 s.reset_to_bci(bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
2290 int prev_bci = bci;
a61af66fc99e Initial load
duke
parents:
diff changeset
2291 scope_data()->set_stream(&s);
a61af66fc99e Initial load
duke
parents:
diff changeset
2292 // iterate
a61af66fc99e Initial load
duke
parents:
diff changeset
2293 Bytecodes::Code code = Bytecodes::_illegal;
a61af66fc99e Initial load
duke
parents:
diff changeset
2294 bool push_exception = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2295
a61af66fc99e Initial load
duke
parents:
diff changeset
2296 if (block()->is_set(BlockBegin::exception_entry_flag) && block()->next() == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2297 // first thing in the exception entry block should be the exception object.
a61af66fc99e Initial load
duke
parents:
diff changeset
2298 push_exception = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
2299 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2300
a61af66fc99e Initial load
duke
parents:
diff changeset
2301 while (!bailed_out() && last()->as_BlockEnd() == NULL &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2302 (code = stream()->next()) != ciBytecodeStream::EOBC() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2303 (block_at(s.cur_bci()) == NULL || block_at(s.cur_bci()) == block())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2304
a61af66fc99e Initial load
duke
parents:
diff changeset
2305 if (has_handler() && can_trap(method(), code)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2306 // copy the state because it is modified before handle_exception is called
a61af66fc99e Initial load
duke
parents:
diff changeset
2307 set_exception_state(state()->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
2308 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2309 // handle_exception is not called for this bytecode
a61af66fc99e Initial load
duke
parents:
diff changeset
2310 set_exception_state(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2311 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2312
a61af66fc99e Initial load
duke
parents:
diff changeset
2313 // Check for active jsr during OSR compilation
a61af66fc99e Initial load
duke
parents:
diff changeset
2314 if (compilation()->is_osr_compile()
a61af66fc99e Initial load
duke
parents:
diff changeset
2315 && scope()->is_top_scope()
a61af66fc99e Initial load
duke
parents:
diff changeset
2316 && parsing_jsr()
a61af66fc99e Initial load
duke
parents:
diff changeset
2317 && s.cur_bci() == compilation()->osr_bci()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2318 bailout("OSR not supported while a jsr is active");
a61af66fc99e Initial load
duke
parents:
diff changeset
2319 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2320
a61af66fc99e Initial load
duke
parents:
diff changeset
2321 if (push_exception) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2322 apush(append(new ExceptionObject()));
a61af66fc99e Initial load
duke
parents:
diff changeset
2323 push_exception = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2324 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2325
a61af66fc99e Initial load
duke
parents:
diff changeset
2326 // handle bytecode
a61af66fc99e Initial load
duke
parents:
diff changeset
2327 switch (code) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2328 case Bytecodes::_nop : /* nothing to do */ break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2329 case Bytecodes::_aconst_null : apush(append(new Constant(objectNull ))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2330 case Bytecodes::_iconst_m1 : ipush(append(new Constant(new IntConstant (-1)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2331 case Bytecodes::_iconst_0 : ipush(append(new Constant(intZero ))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2332 case Bytecodes::_iconst_1 : ipush(append(new Constant(intOne ))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2333 case Bytecodes::_iconst_2 : ipush(append(new Constant(new IntConstant ( 2)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2334 case Bytecodes::_iconst_3 : ipush(append(new Constant(new IntConstant ( 3)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2335 case Bytecodes::_iconst_4 : ipush(append(new Constant(new IntConstant ( 4)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2336 case Bytecodes::_iconst_5 : ipush(append(new Constant(new IntConstant ( 5)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2337 case Bytecodes::_lconst_0 : lpush(append(new Constant(new LongConstant ( 0)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2338 case Bytecodes::_lconst_1 : lpush(append(new Constant(new LongConstant ( 1)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2339 case Bytecodes::_fconst_0 : fpush(append(new Constant(new FloatConstant ( 0)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2340 case Bytecodes::_fconst_1 : fpush(append(new Constant(new FloatConstant ( 1)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2341 case Bytecodes::_fconst_2 : fpush(append(new Constant(new FloatConstant ( 2)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2342 case Bytecodes::_dconst_0 : dpush(append(new Constant(new DoubleConstant( 0)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2343 case Bytecodes::_dconst_1 : dpush(append(new Constant(new DoubleConstant( 1)))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2344 case Bytecodes::_bipush : ipush(append(new Constant(new IntConstant(((signed char*)s.cur_bcp())[1])))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2345 case Bytecodes::_sipush : ipush(append(new Constant(new IntConstant((short)Bytes::get_Java_u2(s.cur_bcp()+1))))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2346 case Bytecodes::_ldc : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2347 case Bytecodes::_ldc_w : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2348 case Bytecodes::_ldc2_w : load_constant(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2349 case Bytecodes::_iload : load_local(intType , s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2350 case Bytecodes::_lload : load_local(longType , s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2351 case Bytecodes::_fload : load_local(floatType , s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2352 case Bytecodes::_dload : load_local(doubleType , s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2353 case Bytecodes::_aload : load_local(instanceType, s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2354 case Bytecodes::_iload_0 : load_local(intType , 0); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2355 case Bytecodes::_iload_1 : load_local(intType , 1); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2356 case Bytecodes::_iload_2 : load_local(intType , 2); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2357 case Bytecodes::_iload_3 : load_local(intType , 3); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2358 case Bytecodes::_lload_0 : load_local(longType , 0); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2359 case Bytecodes::_lload_1 : load_local(longType , 1); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2360 case Bytecodes::_lload_2 : load_local(longType , 2); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2361 case Bytecodes::_lload_3 : load_local(longType , 3); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2362 case Bytecodes::_fload_0 : load_local(floatType , 0); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2363 case Bytecodes::_fload_1 : load_local(floatType , 1); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2364 case Bytecodes::_fload_2 : load_local(floatType , 2); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2365 case Bytecodes::_fload_3 : load_local(floatType , 3); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2366 case Bytecodes::_dload_0 : load_local(doubleType, 0); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2367 case Bytecodes::_dload_1 : load_local(doubleType, 1); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2368 case Bytecodes::_dload_2 : load_local(doubleType, 2); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2369 case Bytecodes::_dload_3 : load_local(doubleType, 3); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2370 case Bytecodes::_aload_0 : load_local(objectType, 0); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2371 case Bytecodes::_aload_1 : load_local(objectType, 1); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2372 case Bytecodes::_aload_2 : load_local(objectType, 2); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2373 case Bytecodes::_aload_3 : load_local(objectType, 3); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2374 case Bytecodes::_iaload : load_indexed(T_INT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2375 case Bytecodes::_laload : load_indexed(T_LONG ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2376 case Bytecodes::_faload : load_indexed(T_FLOAT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2377 case Bytecodes::_daload : load_indexed(T_DOUBLE); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2378 case Bytecodes::_aaload : load_indexed(T_OBJECT); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2379 case Bytecodes::_baload : load_indexed(T_BYTE ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2380 case Bytecodes::_caload : load_indexed(T_CHAR ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2381 case Bytecodes::_saload : load_indexed(T_SHORT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2382 case Bytecodes::_istore : store_local(intType , s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2383 case Bytecodes::_lstore : store_local(longType , s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2384 case Bytecodes::_fstore : store_local(floatType , s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2385 case Bytecodes::_dstore : store_local(doubleType, s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2386 case Bytecodes::_astore : store_local(objectType, s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2387 case Bytecodes::_istore_0 : store_local(intType , 0); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2388 case Bytecodes::_istore_1 : store_local(intType , 1); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2389 case Bytecodes::_istore_2 : store_local(intType , 2); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2390 case Bytecodes::_istore_3 : store_local(intType , 3); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2391 case Bytecodes::_lstore_0 : store_local(longType , 0); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2392 case Bytecodes::_lstore_1 : store_local(longType , 1); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2393 case Bytecodes::_lstore_2 : store_local(longType , 2); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2394 case Bytecodes::_lstore_3 : store_local(longType , 3); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2395 case Bytecodes::_fstore_0 : store_local(floatType , 0); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2396 case Bytecodes::_fstore_1 : store_local(floatType , 1); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2397 case Bytecodes::_fstore_2 : store_local(floatType , 2); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2398 case Bytecodes::_fstore_3 : store_local(floatType , 3); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2399 case Bytecodes::_dstore_0 : store_local(doubleType, 0); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2400 case Bytecodes::_dstore_1 : store_local(doubleType, 1); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2401 case Bytecodes::_dstore_2 : store_local(doubleType, 2); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2402 case Bytecodes::_dstore_3 : store_local(doubleType, 3); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2403 case Bytecodes::_astore_0 : store_local(objectType, 0); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2404 case Bytecodes::_astore_1 : store_local(objectType, 1); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2405 case Bytecodes::_astore_2 : store_local(objectType, 2); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2406 case Bytecodes::_astore_3 : store_local(objectType, 3); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2407 case Bytecodes::_iastore : store_indexed(T_INT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2408 case Bytecodes::_lastore : store_indexed(T_LONG ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2409 case Bytecodes::_fastore : store_indexed(T_FLOAT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2410 case Bytecodes::_dastore : store_indexed(T_DOUBLE); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2411 case Bytecodes::_aastore : store_indexed(T_OBJECT); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2412 case Bytecodes::_bastore : store_indexed(T_BYTE ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2413 case Bytecodes::_castore : store_indexed(T_CHAR ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2414 case Bytecodes::_sastore : store_indexed(T_SHORT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2415 case Bytecodes::_pop : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2416 case Bytecodes::_pop2 : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2417 case Bytecodes::_dup : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2418 case Bytecodes::_dup_x1 : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2419 case Bytecodes::_dup_x2 : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2420 case Bytecodes::_dup2 : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2421 case Bytecodes::_dup2_x1 : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2422 case Bytecodes::_dup2_x2 : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2423 case Bytecodes::_swap : stack_op(code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2424 case Bytecodes::_iadd : arithmetic_op(intType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2425 case Bytecodes::_ladd : arithmetic_op(longType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2426 case Bytecodes::_fadd : arithmetic_op(floatType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2427 case Bytecodes::_dadd : arithmetic_op(doubleType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2428 case Bytecodes::_isub : arithmetic_op(intType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2429 case Bytecodes::_lsub : arithmetic_op(longType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2430 case Bytecodes::_fsub : arithmetic_op(floatType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2431 case Bytecodes::_dsub : arithmetic_op(doubleType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2432 case Bytecodes::_imul : arithmetic_op(intType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2433 case Bytecodes::_lmul : arithmetic_op(longType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2434 case Bytecodes::_fmul : arithmetic_op(floatType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2435 case Bytecodes::_dmul : arithmetic_op(doubleType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2436 case Bytecodes::_idiv : arithmetic_op(intType , code, lock_stack()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2437 case Bytecodes::_ldiv : arithmetic_op(longType , code, lock_stack()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2438 case Bytecodes::_fdiv : arithmetic_op(floatType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2439 case Bytecodes::_ddiv : arithmetic_op(doubleType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2440 case Bytecodes::_irem : arithmetic_op(intType , code, lock_stack()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2441 case Bytecodes::_lrem : arithmetic_op(longType , code, lock_stack()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2442 case Bytecodes::_frem : arithmetic_op(floatType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2443 case Bytecodes::_drem : arithmetic_op(doubleType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2444 case Bytecodes::_ineg : negate_op(intType ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2445 case Bytecodes::_lneg : negate_op(longType ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2446 case Bytecodes::_fneg : negate_op(floatType ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2447 case Bytecodes::_dneg : negate_op(doubleType); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2448 case Bytecodes::_ishl : shift_op(intType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2449 case Bytecodes::_lshl : shift_op(longType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2450 case Bytecodes::_ishr : shift_op(intType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2451 case Bytecodes::_lshr : shift_op(longType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2452 case Bytecodes::_iushr : shift_op(intType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2453 case Bytecodes::_lushr : shift_op(longType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2454 case Bytecodes::_iand : logic_op(intType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2455 case Bytecodes::_land : logic_op(longType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2456 case Bytecodes::_ior : logic_op(intType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2457 case Bytecodes::_lor : logic_op(longType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2458 case Bytecodes::_ixor : logic_op(intType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2459 case Bytecodes::_lxor : logic_op(longType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2460 case Bytecodes::_iinc : increment(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2461 case Bytecodes::_i2l : convert(code, T_INT , T_LONG ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2462 case Bytecodes::_i2f : convert(code, T_INT , T_FLOAT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2463 case Bytecodes::_i2d : convert(code, T_INT , T_DOUBLE); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2464 case Bytecodes::_l2i : convert(code, T_LONG , T_INT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2465 case Bytecodes::_l2f : convert(code, T_LONG , T_FLOAT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2466 case Bytecodes::_l2d : convert(code, T_LONG , T_DOUBLE); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2467 case Bytecodes::_f2i : convert(code, T_FLOAT , T_INT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2468 case Bytecodes::_f2l : convert(code, T_FLOAT , T_LONG ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2469 case Bytecodes::_f2d : convert(code, T_FLOAT , T_DOUBLE); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2470 case Bytecodes::_d2i : convert(code, T_DOUBLE, T_INT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2471 case Bytecodes::_d2l : convert(code, T_DOUBLE, T_LONG ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2472 case Bytecodes::_d2f : convert(code, T_DOUBLE, T_FLOAT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2473 case Bytecodes::_i2b : convert(code, T_INT , T_BYTE ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2474 case Bytecodes::_i2c : convert(code, T_INT , T_CHAR ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2475 case Bytecodes::_i2s : convert(code, T_INT , T_SHORT ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2476 case Bytecodes::_lcmp : compare_op(longType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2477 case Bytecodes::_fcmpl : compare_op(floatType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2478 case Bytecodes::_fcmpg : compare_op(floatType , code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2479 case Bytecodes::_dcmpl : compare_op(doubleType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2480 case Bytecodes::_dcmpg : compare_op(doubleType, code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2481 case Bytecodes::_ifeq : if_zero(intType , If::eql); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2482 case Bytecodes::_ifne : if_zero(intType , If::neq); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2483 case Bytecodes::_iflt : if_zero(intType , If::lss); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2484 case Bytecodes::_ifge : if_zero(intType , If::geq); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2485 case Bytecodes::_ifgt : if_zero(intType , If::gtr); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2486 case Bytecodes::_ifle : if_zero(intType , If::leq); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2487 case Bytecodes::_if_icmpeq : if_same(intType , If::eql); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2488 case Bytecodes::_if_icmpne : if_same(intType , If::neq); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2489 case Bytecodes::_if_icmplt : if_same(intType , If::lss); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2490 case Bytecodes::_if_icmpge : if_same(intType , If::geq); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2491 case Bytecodes::_if_icmpgt : if_same(intType , If::gtr); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2492 case Bytecodes::_if_icmple : if_same(intType , If::leq); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2493 case Bytecodes::_if_acmpeq : if_same(objectType, If::eql); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2494 case Bytecodes::_if_acmpne : if_same(objectType, If::neq); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2495 case Bytecodes::_goto : _goto(s.cur_bci(), s.get_dest()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2496 case Bytecodes::_jsr : jsr(s.get_dest()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2497 case Bytecodes::_ret : ret(s.get_index()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2498 case Bytecodes::_tableswitch : table_switch(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2499 case Bytecodes::_lookupswitch : lookup_switch(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2500 case Bytecodes::_ireturn : method_return(ipop()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2501 case Bytecodes::_lreturn : method_return(lpop()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2502 case Bytecodes::_freturn : method_return(fpop()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2503 case Bytecodes::_dreturn : method_return(dpop()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2504 case Bytecodes::_areturn : method_return(apop()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2505 case Bytecodes::_return : method_return(NULL ); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2506 case Bytecodes::_getstatic : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2507 case Bytecodes::_putstatic : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2508 case Bytecodes::_getfield : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2509 case Bytecodes::_putfield : access_field(code); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2510 case Bytecodes::_invokevirtual : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2511 case Bytecodes::_invokespecial : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2512 case Bytecodes::_invokestatic : // fall through
726
be93aad57795 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 470
diff changeset
2513 case Bytecodes::_invokedynamic : // fall through
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2514 case Bytecodes::_invokeinterface: invoke(code); break;
1565
ab102d5d923e 6939207: refactor constant pool index processing
jrose
parents: 1540
diff changeset
2515 case Bytecodes::_new : new_instance(s.get_index_u2()); break;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2516 case Bytecodes::_newarray : new_type_array(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2517 case Bytecodes::_anewarray : new_object_array(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2518 case Bytecodes::_arraylength : ipush(append(new ArrayLength(apop(), lock_stack()))); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2519 case Bytecodes::_athrow : throw_op(s.cur_bci()); break;
1565
ab102d5d923e 6939207: refactor constant pool index processing
jrose
parents: 1540
diff changeset
2520 case Bytecodes::_checkcast : check_cast(s.get_index_u2()); break;
ab102d5d923e 6939207: refactor constant pool index processing
jrose
parents: 1540
diff changeset
2521 case Bytecodes::_instanceof : instance_of(s.get_index_u2()); break;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2522 // Note: we do not have special handling for the monitorenter bytecode if DeoptC1 && DeoptOnAsyncException
a61af66fc99e Initial load
duke
parents:
diff changeset
2523 case Bytecodes::_monitorenter : monitorenter(apop(), s.cur_bci()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2524 case Bytecodes::_monitorexit : monitorexit (apop(), s.cur_bci()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2525 case Bytecodes::_wide : ShouldNotReachHere(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2526 case Bytecodes::_multianewarray : new_multi_array(s.cur_bcp()[3]); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2527 case Bytecodes::_ifnull : if_null(objectType, If::eql); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2528 case Bytecodes::_ifnonnull : if_null(objectType, If::neq); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2529 case Bytecodes::_goto_w : _goto(s.cur_bci(), s.get_far_dest()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2530 case Bytecodes::_jsr_w : jsr(s.get_far_dest()); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2531 case Bytecodes::_breakpoint : BAILOUT_("concurrent setting of breakpoint", NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2532 default : ShouldNotReachHere(); break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2533 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2534 // save current bci to setup Goto at the end
a61af66fc99e Initial load
duke
parents:
diff changeset
2535 prev_bci = s.cur_bci();
a61af66fc99e Initial load
duke
parents:
diff changeset
2536 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2537 CHECK_BAILOUT_(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2538 // stop processing of this block (see try_inline_full)
a61af66fc99e Initial load
duke
parents:
diff changeset
2539 if (_skip_block) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2540 _skip_block = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2541 assert(_last && _last->as_BlockEnd(), "");
a61af66fc99e Initial load
duke
parents:
diff changeset
2542 return _last->as_BlockEnd();
a61af66fc99e Initial load
duke
parents:
diff changeset
2543 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2544 // if there are any, check if last instruction is a BlockEnd instruction
a61af66fc99e Initial load
duke
parents:
diff changeset
2545 BlockEnd* end = last()->as_BlockEnd();
a61af66fc99e Initial load
duke
parents:
diff changeset
2546 if (end == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2547 // all blocks must end with a BlockEnd instruction => add a Goto
a61af66fc99e Initial load
duke
parents:
diff changeset
2548 end = new Goto(block_at(s.cur_bci()), false);
a61af66fc99e Initial load
duke
parents:
diff changeset
2549 _last = _last->set_next(end, prev_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
2550 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2551 assert(end == last()->as_BlockEnd(), "inconsistency");
a61af66fc99e Initial load
duke
parents:
diff changeset
2552
a61af66fc99e Initial load
duke
parents:
diff changeset
2553 // if the method terminates, we don't need the stack anymore
a61af66fc99e Initial load
duke
parents:
diff changeset
2554 if (end->as_Return() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2555 state()->clear_stack();
a61af66fc99e Initial load
duke
parents:
diff changeset
2556 } else if (end->as_Throw() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2557 // May have exception handler in caller scopes
a61af66fc99e Initial load
duke
parents:
diff changeset
2558 state()->truncate_stack(scope()->lock_stack_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
2559 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2560
a61af66fc99e Initial load
duke
parents:
diff changeset
2561 // connect to begin & set state
a61af66fc99e Initial load
duke
parents:
diff changeset
2562 // NOTE that inlining may have changed the block we are parsing
a61af66fc99e Initial load
duke
parents:
diff changeset
2563 block()->set_end(end);
a61af66fc99e Initial load
duke
parents:
diff changeset
2564 end->set_state(state());
a61af66fc99e Initial load
duke
parents:
diff changeset
2565 // propagate state
a61af66fc99e Initial load
duke
parents:
diff changeset
2566 for (int i = end->number_of_sux() - 1; i >= 0; i--) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2567 BlockBegin* sux = end->sux_at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
2568 assert(sux->is_predecessor(block()), "predecessor missing");
a61af66fc99e Initial load
duke
parents:
diff changeset
2569 // be careful, bailout if bytecodes are strange
a61af66fc99e Initial load
duke
parents:
diff changeset
2570 if (!sux->try_merge(state())) BAILOUT_("block join failed", NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2571 scope_data()->add_to_work_list(end->sux_at(i));
a61af66fc99e Initial load
duke
parents:
diff changeset
2572 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2573
a61af66fc99e Initial load
duke
parents:
diff changeset
2574 scope_data()->set_stream(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2575
a61af66fc99e Initial load
duke
parents:
diff changeset
2576 // done
a61af66fc99e Initial load
duke
parents:
diff changeset
2577 return end;
a61af66fc99e Initial load
duke
parents:
diff changeset
2578 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2579
a61af66fc99e Initial load
duke
parents:
diff changeset
2580
a61af66fc99e Initial load
duke
parents:
diff changeset
2581 void GraphBuilder::iterate_all_blocks(bool start_in_current_block_for_inlining) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2582 do {
a61af66fc99e Initial load
duke
parents:
diff changeset
2583 if (start_in_current_block_for_inlining && !bailed_out()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2584 iterate_bytecodes_for_block(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2585 start_in_current_block_for_inlining = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2586 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2587 BlockBegin* b;
a61af66fc99e Initial load
duke
parents:
diff changeset
2588 while ((b = scope_data()->remove_from_work_list()) != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2589 if (!b->is_set(BlockBegin::was_visited_flag)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2590 if (b->is_set(BlockBegin::osr_entry_flag)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2591 // we're about to parse the osr entry block, so make sure
a61af66fc99e Initial load
duke
parents:
diff changeset
2592 // we setup the OSR edge leading into this block so that
a61af66fc99e Initial load
duke
parents:
diff changeset
2593 // Phis get setup correctly.
a61af66fc99e Initial load
duke
parents:
diff changeset
2594 setup_osr_entry_block();
a61af66fc99e Initial load
duke
parents:
diff changeset
2595 // this is no longer the osr entry block, so clear it.
a61af66fc99e Initial load
duke
parents:
diff changeset
2596 b->clear(BlockBegin::osr_entry_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
2597 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2598 b->set(BlockBegin::was_visited_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
2599 connect_to_end(b);
a61af66fc99e Initial load
duke
parents:
diff changeset
2600 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2601 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2602 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2603 } while (!bailed_out() && !scope_data()->is_work_list_empty());
a61af66fc99e Initial load
duke
parents:
diff changeset
2604 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2605
a61af66fc99e Initial load
duke
parents:
diff changeset
2606
a61af66fc99e Initial load
duke
parents:
diff changeset
2607 bool GraphBuilder::_can_trap [Bytecodes::number_of_java_codes];
a61af66fc99e Initial load
duke
parents:
diff changeset
2608 bool GraphBuilder::_is_async[Bytecodes::number_of_java_codes];
a61af66fc99e Initial load
duke
parents:
diff changeset
2609
a61af66fc99e Initial load
duke
parents:
diff changeset
2610 void GraphBuilder::initialize() {
a61af66fc99e Initial load
duke
parents:
diff changeset
2611 // the following bytecodes are assumed to potentially
a61af66fc99e Initial load
duke
parents:
diff changeset
2612 // throw exceptions in compiled code - note that e.g.
a61af66fc99e Initial load
duke
parents:
diff changeset
2613 // monitorexit & the return bytecodes do not throw
a61af66fc99e Initial load
duke
parents:
diff changeset
2614 // exceptions since monitor pairing proved that they
a61af66fc99e Initial load
duke
parents:
diff changeset
2615 // succeed (if monitor pairing succeeded)
a61af66fc99e Initial load
duke
parents:
diff changeset
2616 Bytecodes::Code can_trap_list[] =
a61af66fc99e Initial load
duke
parents:
diff changeset
2617 { Bytecodes::_ldc
a61af66fc99e Initial load
duke
parents:
diff changeset
2618 , Bytecodes::_ldc_w
a61af66fc99e Initial load
duke
parents:
diff changeset
2619 , Bytecodes::_ldc2_w
a61af66fc99e Initial load
duke
parents:
diff changeset
2620 , Bytecodes::_iaload
a61af66fc99e Initial load
duke
parents:
diff changeset
2621 , Bytecodes::_laload
a61af66fc99e Initial load
duke
parents:
diff changeset
2622 , Bytecodes::_faload
a61af66fc99e Initial load
duke
parents:
diff changeset
2623 , Bytecodes::_daload
a61af66fc99e Initial load
duke
parents:
diff changeset
2624 , Bytecodes::_aaload
a61af66fc99e Initial load
duke
parents:
diff changeset
2625 , Bytecodes::_baload
a61af66fc99e Initial load
duke
parents:
diff changeset
2626 , Bytecodes::_caload
a61af66fc99e Initial load
duke
parents:
diff changeset
2627 , Bytecodes::_saload
a61af66fc99e Initial load
duke
parents:
diff changeset
2628 , Bytecodes::_iastore
a61af66fc99e Initial load
duke
parents:
diff changeset
2629 , Bytecodes::_lastore
a61af66fc99e Initial load
duke
parents:
diff changeset
2630 , Bytecodes::_fastore
a61af66fc99e Initial load
duke
parents:
diff changeset
2631 , Bytecodes::_dastore
a61af66fc99e Initial load
duke
parents:
diff changeset
2632 , Bytecodes::_aastore
a61af66fc99e Initial load
duke
parents:
diff changeset
2633 , Bytecodes::_bastore
a61af66fc99e Initial load
duke
parents:
diff changeset
2634 , Bytecodes::_castore
a61af66fc99e Initial load
duke
parents:
diff changeset
2635 , Bytecodes::_sastore
a61af66fc99e Initial load
duke
parents:
diff changeset
2636 , Bytecodes::_idiv
a61af66fc99e Initial load
duke
parents:
diff changeset
2637 , Bytecodes::_ldiv
a61af66fc99e Initial load
duke
parents:
diff changeset
2638 , Bytecodes::_irem
a61af66fc99e Initial load
duke
parents:
diff changeset
2639 , Bytecodes::_lrem
a61af66fc99e Initial load
duke
parents:
diff changeset
2640 , Bytecodes::_getstatic
a61af66fc99e Initial load
duke
parents:
diff changeset
2641 , Bytecodes::_putstatic
a61af66fc99e Initial load
duke
parents:
diff changeset
2642 , Bytecodes::_getfield
a61af66fc99e Initial load
duke
parents:
diff changeset
2643 , Bytecodes::_putfield
a61af66fc99e Initial load
duke
parents:
diff changeset
2644 , Bytecodes::_invokevirtual
a61af66fc99e Initial load
duke
parents:
diff changeset
2645 , Bytecodes::_invokespecial
a61af66fc99e Initial load
duke
parents:
diff changeset
2646 , Bytecodes::_invokestatic
726
be93aad57795 6655646: dynamic languages need dynamically linked call sites
jrose
parents: 470
diff changeset
2647 , Bytecodes::_invokedynamic
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2648 , Bytecodes::_invokeinterface
a61af66fc99e Initial load
duke
parents:
diff changeset
2649 , Bytecodes::_new
a61af66fc99e Initial load
duke
parents:
diff changeset
2650 , Bytecodes::_newarray
a61af66fc99e Initial load
duke
parents:
diff changeset
2651 , Bytecodes::_anewarray
a61af66fc99e Initial load
duke
parents:
diff changeset
2652 , Bytecodes::_arraylength
a61af66fc99e Initial load
duke
parents:
diff changeset
2653 , Bytecodes::_athrow
a61af66fc99e Initial load
duke
parents:
diff changeset
2654 , Bytecodes::_checkcast
a61af66fc99e Initial load
duke
parents:
diff changeset
2655 , Bytecodes::_instanceof
a61af66fc99e Initial load
duke
parents:
diff changeset
2656 , Bytecodes::_monitorenter
a61af66fc99e Initial load
duke
parents:
diff changeset
2657 , Bytecodes::_multianewarray
a61af66fc99e Initial load
duke
parents:
diff changeset
2658 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2659
a61af66fc99e Initial load
duke
parents:
diff changeset
2660 // the following bytecodes are assumed to potentially
a61af66fc99e Initial load
duke
parents:
diff changeset
2661 // throw asynchronous exceptions in compiled code due
a61af66fc99e Initial load
duke
parents:
diff changeset
2662 // to safepoints (note: these entries could be merged
a61af66fc99e Initial load
duke
parents:
diff changeset
2663 // with the can_trap_list - however, we need to know
a61af66fc99e Initial load
duke
parents:
diff changeset
2664 // which ones are asynchronous for now - see also the
a61af66fc99e Initial load
duke
parents:
diff changeset
2665 // comment in GraphBuilder::handle_exception)
a61af66fc99e Initial load
duke
parents:
diff changeset
2666 Bytecodes::Code is_async_list[] =
a61af66fc99e Initial load
duke
parents:
diff changeset
2667 { Bytecodes::_ifeq
a61af66fc99e Initial load
duke
parents:
diff changeset
2668 , Bytecodes::_ifne
a61af66fc99e Initial load
duke
parents:
diff changeset
2669 , Bytecodes::_iflt
a61af66fc99e Initial load
duke
parents:
diff changeset
2670 , Bytecodes::_ifge
a61af66fc99e Initial load
duke
parents:
diff changeset
2671 , Bytecodes::_ifgt
a61af66fc99e Initial load
duke
parents:
diff changeset
2672 , Bytecodes::_ifle
a61af66fc99e Initial load
duke
parents:
diff changeset
2673 , Bytecodes::_if_icmpeq
a61af66fc99e Initial load
duke
parents:
diff changeset
2674 , Bytecodes::_if_icmpne
a61af66fc99e Initial load
duke
parents:
diff changeset
2675 , Bytecodes::_if_icmplt
a61af66fc99e Initial load
duke
parents:
diff changeset
2676 , Bytecodes::_if_icmpge
a61af66fc99e Initial load
duke
parents:
diff changeset
2677 , Bytecodes::_if_icmpgt
a61af66fc99e Initial load
duke
parents:
diff changeset
2678 , Bytecodes::_if_icmple
a61af66fc99e Initial load
duke
parents:
diff changeset
2679 , Bytecodes::_if_acmpeq
a61af66fc99e Initial load
duke
parents:
diff changeset
2680 , Bytecodes::_if_acmpne
a61af66fc99e Initial load
duke
parents:
diff changeset
2681 , Bytecodes::_goto
a61af66fc99e Initial load
duke
parents:
diff changeset
2682 , Bytecodes::_jsr
a61af66fc99e Initial load
duke
parents:
diff changeset
2683 , Bytecodes::_ret
a61af66fc99e Initial load
duke
parents:
diff changeset
2684 , Bytecodes::_tableswitch
a61af66fc99e Initial load
duke
parents:
diff changeset
2685 , Bytecodes::_lookupswitch
a61af66fc99e Initial load
duke
parents:
diff changeset
2686 , Bytecodes::_ireturn
a61af66fc99e Initial load
duke
parents:
diff changeset
2687 , Bytecodes::_lreturn
a61af66fc99e Initial load
duke
parents:
diff changeset
2688 , Bytecodes::_freturn
a61af66fc99e Initial load
duke
parents:
diff changeset
2689 , Bytecodes::_dreturn
a61af66fc99e Initial load
duke
parents:
diff changeset
2690 , Bytecodes::_areturn
a61af66fc99e Initial load
duke
parents:
diff changeset
2691 , Bytecodes::_return
a61af66fc99e Initial load
duke
parents:
diff changeset
2692 , Bytecodes::_ifnull
a61af66fc99e Initial load
duke
parents:
diff changeset
2693 , Bytecodes::_ifnonnull
a61af66fc99e Initial load
duke
parents:
diff changeset
2694 , Bytecodes::_goto_w
a61af66fc99e Initial load
duke
parents:
diff changeset
2695 , Bytecodes::_jsr_w
a61af66fc99e Initial load
duke
parents:
diff changeset
2696 };
a61af66fc99e Initial load
duke
parents:
diff changeset
2697
a61af66fc99e Initial load
duke
parents:
diff changeset
2698 // inititialize trap tables
a61af66fc99e Initial load
duke
parents:
diff changeset
2699 for (int i = 0; i < Bytecodes::number_of_java_codes; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2700 _can_trap[i] = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2701 _is_async[i] = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2702 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2703 // set standard trap info
a61af66fc99e Initial load
duke
parents:
diff changeset
2704 for (uint j = 0; j < ARRAY_SIZE(can_trap_list); j++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2705 _can_trap[can_trap_list[j]] = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
2706 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2707
a61af66fc99e Initial load
duke
parents:
diff changeset
2708 // We now deoptimize if an asynchronous exception is thrown. This
a61af66fc99e Initial load
duke
parents:
diff changeset
2709 // considerably cleans up corner case issues related to javac's
a61af66fc99e Initial load
duke
parents:
diff changeset
2710 // incorrect exception handler ranges for async exceptions and
a61af66fc99e Initial load
duke
parents:
diff changeset
2711 // allows us to precisely analyze the types of exceptions from
a61af66fc99e Initial load
duke
parents:
diff changeset
2712 // certain bytecodes.
a61af66fc99e Initial load
duke
parents:
diff changeset
2713 if (!(DeoptC1 && DeoptOnAsyncException)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2714 // set asynchronous trap info
a61af66fc99e Initial load
duke
parents:
diff changeset
2715 for (uint k = 0; k < ARRAY_SIZE(is_async_list); k++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2716 assert(!_can_trap[is_async_list[k]], "can_trap_list and is_async_list should be disjoint");
a61af66fc99e Initial load
duke
parents:
diff changeset
2717 _can_trap[is_async_list[k]] = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
2718 _is_async[is_async_list[k]] = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
2719 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2720 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2721 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2722
a61af66fc99e Initial load
duke
parents:
diff changeset
2723
a61af66fc99e Initial load
duke
parents:
diff changeset
2724 BlockBegin* GraphBuilder::header_block(BlockBegin* entry, BlockBegin::Flag f, ValueStack* state) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2725 assert(entry->is_set(f), "entry/flag mismatch");
a61af66fc99e Initial load
duke
parents:
diff changeset
2726 // create header block
a61af66fc99e Initial load
duke
parents:
diff changeset
2727 BlockBegin* h = new BlockBegin(entry->bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
2728 h->set_depth_first_number(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2729
a61af66fc99e Initial load
duke
parents:
diff changeset
2730 Value l = h;
a61af66fc99e Initial load
duke
parents:
diff changeset
2731 BlockEnd* g = new Goto(entry, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
2732 l->set_next(g, entry->bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
2733 h->set_end(g);
a61af66fc99e Initial load
duke
parents:
diff changeset
2734 h->set(f);
a61af66fc99e Initial load
duke
parents:
diff changeset
2735 // setup header block end state
a61af66fc99e Initial load
duke
parents:
diff changeset
2736 ValueStack* s = state->copy(); // can use copy since stack is empty (=> no phis)
a61af66fc99e Initial load
duke
parents:
diff changeset
2737 assert(s->stack_is_empty(), "must have empty stack at entry point");
a61af66fc99e Initial load
duke
parents:
diff changeset
2738 g->set_state(s);
a61af66fc99e Initial load
duke
parents:
diff changeset
2739 return h;
a61af66fc99e Initial load
duke
parents:
diff changeset
2740 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2741
a61af66fc99e Initial load
duke
parents:
diff changeset
2742
a61af66fc99e Initial load
duke
parents:
diff changeset
2743
a61af66fc99e Initial load
duke
parents:
diff changeset
2744 BlockBegin* GraphBuilder::setup_start_block(int osr_bci, BlockBegin* std_entry, BlockBegin* osr_entry, ValueStack* state) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2745 BlockBegin* start = new BlockBegin(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2746
a61af66fc99e Initial load
duke
parents:
diff changeset
2747 // This code eliminates the empty start block at the beginning of
a61af66fc99e Initial load
duke
parents:
diff changeset
2748 // each method. Previously, each method started with the
a61af66fc99e Initial load
duke
parents:
diff changeset
2749 // start-block created below, and this block was followed by the
a61af66fc99e Initial load
duke
parents:
diff changeset
2750 // header block that was always empty. This header block is only
a61af66fc99e Initial load
duke
parents:
diff changeset
2751 // necesary if std_entry is also a backward branch target because
a61af66fc99e Initial load
duke
parents:
diff changeset
2752 // then phi functions may be necessary in the header block. It's
a61af66fc99e Initial load
duke
parents:
diff changeset
2753 // also necessary when profiling so that there's a single block that
a61af66fc99e Initial load
duke
parents:
diff changeset
2754 // can increment the interpreter_invocation_count.
a61af66fc99e Initial load
duke
parents:
diff changeset
2755 BlockBegin* new_header_block;
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
2756 if (std_entry->number_of_preds() > 0 || count_invocations() || count_backedges()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
2757 new_header_block = header_block(std_entry, BlockBegin::std_entry_flag, state);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
2758 } else {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2759 new_header_block = std_entry;
a61af66fc99e Initial load
duke
parents:
diff changeset
2760 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2761
a61af66fc99e Initial load
duke
parents:
diff changeset
2762 // setup start block (root for the IR graph)
a61af66fc99e Initial load
duke
parents:
diff changeset
2763 Base* base =
a61af66fc99e Initial load
duke
parents:
diff changeset
2764 new Base(
a61af66fc99e Initial load
duke
parents:
diff changeset
2765 new_header_block,
a61af66fc99e Initial load
duke
parents:
diff changeset
2766 osr_entry
a61af66fc99e Initial load
duke
parents:
diff changeset
2767 );
a61af66fc99e Initial load
duke
parents:
diff changeset
2768 start->set_next(base, 0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2769 start->set_end(base);
a61af66fc99e Initial load
duke
parents:
diff changeset
2770 // create & setup state for start block
a61af66fc99e Initial load
duke
parents:
diff changeset
2771 start->set_state(state->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
2772 base->set_state(state->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
2773
a61af66fc99e Initial load
duke
parents:
diff changeset
2774 if (base->std_entry()->state() == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2775 // setup states for header blocks
a61af66fc99e Initial load
duke
parents:
diff changeset
2776 base->std_entry()->merge(state);
a61af66fc99e Initial load
duke
parents:
diff changeset
2777 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2778
a61af66fc99e Initial load
duke
parents:
diff changeset
2779 assert(base->std_entry()->state() != NULL, "");
a61af66fc99e Initial load
duke
parents:
diff changeset
2780 return start;
a61af66fc99e Initial load
duke
parents:
diff changeset
2781 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2782
a61af66fc99e Initial load
duke
parents:
diff changeset
2783
a61af66fc99e Initial load
duke
parents:
diff changeset
2784 void GraphBuilder::setup_osr_entry_block() {
a61af66fc99e Initial load
duke
parents:
diff changeset
2785 assert(compilation()->is_osr_compile(), "only for osrs");
a61af66fc99e Initial load
duke
parents:
diff changeset
2786
a61af66fc99e Initial load
duke
parents:
diff changeset
2787 int osr_bci = compilation()->osr_bci();
a61af66fc99e Initial load
duke
parents:
diff changeset
2788 ciBytecodeStream s(method());
a61af66fc99e Initial load
duke
parents:
diff changeset
2789 s.reset_to_bci(osr_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
2790 s.next();
a61af66fc99e Initial load
duke
parents:
diff changeset
2791 scope_data()->set_stream(&s);
a61af66fc99e Initial load
duke
parents:
diff changeset
2792
a61af66fc99e Initial load
duke
parents:
diff changeset
2793 // create a new block to be the osr setup code
a61af66fc99e Initial load
duke
parents:
diff changeset
2794 _osr_entry = new BlockBegin(osr_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
2795 _osr_entry->set(BlockBegin::osr_entry_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
2796 _osr_entry->set_depth_first_number(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2797 BlockBegin* target = bci2block()->at(osr_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
2798 assert(target != NULL && target->is_set(BlockBegin::osr_entry_flag), "must be there");
a61af66fc99e Initial load
duke
parents:
diff changeset
2799 // the osr entry has no values for locals
a61af66fc99e Initial load
duke
parents:
diff changeset
2800 ValueStack* state = target->state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
2801 _osr_entry->set_state(state);
a61af66fc99e Initial load
duke
parents:
diff changeset
2802
a61af66fc99e Initial load
duke
parents:
diff changeset
2803 kill_all();
a61af66fc99e Initial load
duke
parents:
diff changeset
2804 _block = _osr_entry;
a61af66fc99e Initial load
duke
parents:
diff changeset
2805 _state = _osr_entry->state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
2806 _last = _osr_entry;
a61af66fc99e Initial load
duke
parents:
diff changeset
2807 Value e = append(new OsrEntry());
a61af66fc99e Initial load
duke
parents:
diff changeset
2808 e->set_needs_null_check(false);
a61af66fc99e Initial load
duke
parents:
diff changeset
2809
a61af66fc99e Initial load
duke
parents:
diff changeset
2810 // OSR buffer is
a61af66fc99e Initial load
duke
parents:
diff changeset
2811 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2812 // locals[nlocals-1..0]
a61af66fc99e Initial load
duke
parents:
diff changeset
2813 // monitors[number_of_locks-1..0]
a61af66fc99e Initial load
duke
parents:
diff changeset
2814 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2815 // locals is a direct copy of the interpreter frame so in the osr buffer
a61af66fc99e Initial load
duke
parents:
diff changeset
2816 // so first slot in the local array is the last local from the interpreter
a61af66fc99e Initial load
duke
parents:
diff changeset
2817 // and last slot is local[0] (receiver) from the interpreter
a61af66fc99e Initial load
duke
parents:
diff changeset
2818 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2819 // Similarly with locks. The first lock slot in the osr buffer is the nth lock
a61af66fc99e Initial load
duke
parents:
diff changeset
2820 // from the interpreter frame, the nth lock slot in the osr buffer is 0th lock
a61af66fc99e Initial load
duke
parents:
diff changeset
2821 // in the interpreter frame (the method lock if a sync method)
a61af66fc99e Initial load
duke
parents:
diff changeset
2822
a61af66fc99e Initial load
duke
parents:
diff changeset
2823 // Initialize monitors in the compiled activation.
a61af66fc99e Initial load
duke
parents:
diff changeset
2824
a61af66fc99e Initial load
duke
parents:
diff changeset
2825 int index;
a61af66fc99e Initial load
duke
parents:
diff changeset
2826 Value local;
a61af66fc99e Initial load
duke
parents:
diff changeset
2827
a61af66fc99e Initial load
duke
parents:
diff changeset
2828 // find all the locals that the interpreter thinks contain live oops
a61af66fc99e Initial load
duke
parents:
diff changeset
2829 const BitMap live_oops = method()->live_local_oops_at_bci(osr_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
2830
a61af66fc99e Initial load
duke
parents:
diff changeset
2831 // compute the offset into the locals so that we can treat the buffer
a61af66fc99e Initial load
duke
parents:
diff changeset
2832 // as if the locals were still in the interpreter frame
a61af66fc99e Initial load
duke
parents:
diff changeset
2833 int locals_offset = BytesPerWord * (method()->max_locals() - 1);
a61af66fc99e Initial load
duke
parents:
diff changeset
2834 for_each_local_value(state, index, local) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2835 int offset = locals_offset - (index + local->type()->size() - 1) * BytesPerWord;
a61af66fc99e Initial load
duke
parents:
diff changeset
2836 Value get;
a61af66fc99e Initial load
duke
parents:
diff changeset
2837 if (local->type()->is_object_kind() && !live_oops.at(index)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2838 // The interpreter thinks this local is dead but the compiler
a61af66fc99e Initial load
duke
parents:
diff changeset
2839 // doesn't so pretend that the interpreter passed in null.
a61af66fc99e Initial load
duke
parents:
diff changeset
2840 get = append(new Constant(objectNull));
a61af66fc99e Initial load
duke
parents:
diff changeset
2841 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2842 get = append(new UnsafeGetRaw(as_BasicType(local->type()), e,
a61af66fc99e Initial load
duke
parents:
diff changeset
2843 append(new Constant(new IntConstant(offset))),
a61af66fc99e Initial load
duke
parents:
diff changeset
2844 0,
a61af66fc99e Initial load
duke
parents:
diff changeset
2845 true));
a61af66fc99e Initial load
duke
parents:
diff changeset
2846 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2847 _state->store_local(index, get);
a61af66fc99e Initial load
duke
parents:
diff changeset
2848 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2849
a61af66fc99e Initial load
duke
parents:
diff changeset
2850 // the storage for the OSR buffer is freed manually in the LIRGenerator.
a61af66fc99e Initial load
duke
parents:
diff changeset
2851
a61af66fc99e Initial load
duke
parents:
diff changeset
2852 assert(state->caller_state() == NULL, "should be top scope");
a61af66fc99e Initial load
duke
parents:
diff changeset
2853 state->clear_locals();
a61af66fc99e Initial load
duke
parents:
diff changeset
2854 Goto* g = new Goto(target, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
2855 g->set_state(_state->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
2856 append(g);
a61af66fc99e Initial load
duke
parents:
diff changeset
2857 _osr_entry->set_end(g);
a61af66fc99e Initial load
duke
parents:
diff changeset
2858 target->merge(_osr_entry->end()->state());
a61af66fc99e Initial load
duke
parents:
diff changeset
2859
a61af66fc99e Initial load
duke
parents:
diff changeset
2860 scope_data()->set_stream(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2861 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2862
a61af66fc99e Initial load
duke
parents:
diff changeset
2863
a61af66fc99e Initial load
duke
parents:
diff changeset
2864 ValueStack* GraphBuilder::state_at_entry() {
a61af66fc99e Initial load
duke
parents:
diff changeset
2865 ValueStack* state = new ValueStack(scope(), method()->max_locals(), method()->max_stack());
a61af66fc99e Initial load
duke
parents:
diff changeset
2866
a61af66fc99e Initial load
duke
parents:
diff changeset
2867 // Set up locals for receiver
a61af66fc99e Initial load
duke
parents:
diff changeset
2868 int idx = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2869 if (!method()->is_static()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2870 // we should always see the receiver
a61af66fc99e Initial load
duke
parents:
diff changeset
2871 state->store_local(idx, new Local(objectType, idx));
a61af66fc99e Initial load
duke
parents:
diff changeset
2872 idx = 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
2873 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2874
a61af66fc99e Initial load
duke
parents:
diff changeset
2875 // Set up locals for incoming arguments
a61af66fc99e Initial load
duke
parents:
diff changeset
2876 ciSignature* sig = method()->signature();
a61af66fc99e Initial load
duke
parents:
diff changeset
2877 for (int i = 0; i < sig->count(); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2878 ciType* type = sig->type_at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
2879 BasicType basic_type = type->basic_type();
a61af66fc99e Initial load
duke
parents:
diff changeset
2880 // don't allow T_ARRAY to propagate into locals types
a61af66fc99e Initial load
duke
parents:
diff changeset
2881 if (basic_type == T_ARRAY) basic_type = T_OBJECT;
a61af66fc99e Initial load
duke
parents:
diff changeset
2882 ValueType* vt = as_ValueType(basic_type);
a61af66fc99e Initial load
duke
parents:
diff changeset
2883 state->store_local(idx, new Local(vt, idx));
a61af66fc99e Initial load
duke
parents:
diff changeset
2884 idx += type->size();
a61af66fc99e Initial load
duke
parents:
diff changeset
2885 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2886
a61af66fc99e Initial load
duke
parents:
diff changeset
2887 // lock synchronized method
a61af66fc99e Initial load
duke
parents:
diff changeset
2888 if (method()->is_synchronized()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2889 state->lock(scope(), NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
2890 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2891
a61af66fc99e Initial load
duke
parents:
diff changeset
2892 return state;
a61af66fc99e Initial load
duke
parents:
diff changeset
2893 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2894
a61af66fc99e Initial load
duke
parents:
diff changeset
2895
a61af66fc99e Initial load
duke
parents:
diff changeset
2896 GraphBuilder::GraphBuilder(Compilation* compilation, IRScope* scope)
a61af66fc99e Initial load
duke
parents:
diff changeset
2897 : _scope_data(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
2898 , _exception_state(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
2899 , _instruction_count(0)
a61af66fc99e Initial load
duke
parents:
diff changeset
2900 , _osr_entry(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
2901 , _memory(new MemoryBuffer())
a61af66fc99e Initial load
duke
parents:
diff changeset
2902 , _compilation(compilation)
a61af66fc99e Initial load
duke
parents:
diff changeset
2903 , _inline_bailout_msg(NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
2904 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2905 int osr_bci = compilation->osr_bci();
a61af66fc99e Initial load
duke
parents:
diff changeset
2906
a61af66fc99e Initial load
duke
parents:
diff changeset
2907 // determine entry points and bci2block mapping
a61af66fc99e Initial load
duke
parents:
diff changeset
2908 BlockListBuilder blm(compilation, scope, osr_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
2909 CHECK_BAILOUT();
a61af66fc99e Initial load
duke
parents:
diff changeset
2910
a61af66fc99e Initial load
duke
parents:
diff changeset
2911 BlockList* bci2block = blm.bci2block();
a61af66fc99e Initial load
duke
parents:
diff changeset
2912 BlockBegin* start_block = bci2block->at(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2913
a61af66fc99e Initial load
duke
parents:
diff changeset
2914 push_root_scope(scope, bci2block, start_block);
a61af66fc99e Initial load
duke
parents:
diff changeset
2915
a61af66fc99e Initial load
duke
parents:
diff changeset
2916 // setup state for std entry
a61af66fc99e Initial load
duke
parents:
diff changeset
2917 _initial_state = state_at_entry();
a61af66fc99e Initial load
duke
parents:
diff changeset
2918 start_block->merge(_initial_state);
a61af66fc99e Initial load
duke
parents:
diff changeset
2919
a61af66fc99e Initial load
duke
parents:
diff changeset
2920 // complete graph
a61af66fc99e Initial load
duke
parents:
diff changeset
2921 _vmap = new ValueMap();
a61af66fc99e Initial load
duke
parents:
diff changeset
2922 scope->compute_lock_stack_size();
a61af66fc99e Initial load
duke
parents:
diff changeset
2923 switch (scope->method()->intrinsic_id()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2924 case vmIntrinsics::_dabs : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2925 case vmIntrinsics::_dsqrt : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2926 case vmIntrinsics::_dsin : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2927 case vmIntrinsics::_dcos : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2928 case vmIntrinsics::_dtan : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2929 case vmIntrinsics::_dlog : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2930 case vmIntrinsics::_dlog10 : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
2931 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2932 // Compiles where the root method is an intrinsic need a special
a61af66fc99e Initial load
duke
parents:
diff changeset
2933 // compilation environment because the bytecodes for the method
a61af66fc99e Initial load
duke
parents:
diff changeset
2934 // shouldn't be parsed during the compilation, only the special
a61af66fc99e Initial load
duke
parents:
diff changeset
2935 // Intrinsic node should be emitted. If this isn't done the the
a61af66fc99e Initial load
duke
parents:
diff changeset
2936 // code for the inlined version will be different than the root
a61af66fc99e Initial load
duke
parents:
diff changeset
2937 // compiled version which could lead to monotonicity problems on
a61af66fc99e Initial load
duke
parents:
diff changeset
2938 // intel.
a61af66fc99e Initial load
duke
parents:
diff changeset
2939
a61af66fc99e Initial load
duke
parents:
diff changeset
2940 // Set up a stream so that appending instructions works properly.
a61af66fc99e Initial load
duke
parents:
diff changeset
2941 ciBytecodeStream s(scope->method());
a61af66fc99e Initial load
duke
parents:
diff changeset
2942 s.reset_to_bci(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2943 scope_data()->set_stream(&s);
a61af66fc99e Initial load
duke
parents:
diff changeset
2944 s.next();
a61af66fc99e Initial load
duke
parents:
diff changeset
2945
a61af66fc99e Initial load
duke
parents:
diff changeset
2946 // setup the initial block state
a61af66fc99e Initial load
duke
parents:
diff changeset
2947 _block = start_block;
a61af66fc99e Initial load
duke
parents:
diff changeset
2948 _state = start_block->state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
2949 _last = start_block;
a61af66fc99e Initial load
duke
parents:
diff changeset
2950 load_local(doubleType, 0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2951
a61af66fc99e Initial load
duke
parents:
diff changeset
2952 // Emit the intrinsic node.
a61af66fc99e Initial load
duke
parents:
diff changeset
2953 bool result = try_inline_intrinsics(scope->method());
a61af66fc99e Initial load
duke
parents:
diff changeset
2954 if (!result) BAILOUT("failed to inline intrinsic");
a61af66fc99e Initial load
duke
parents:
diff changeset
2955 method_return(dpop());
a61af66fc99e Initial load
duke
parents:
diff changeset
2956
a61af66fc99e Initial load
duke
parents:
diff changeset
2957 // connect the begin and end blocks and we're all done.
a61af66fc99e Initial load
duke
parents:
diff changeset
2958 BlockEnd* end = last()->as_BlockEnd();
a61af66fc99e Initial load
duke
parents:
diff changeset
2959 block()->set_end(end);
a61af66fc99e Initial load
duke
parents:
diff changeset
2960 end->set_state(state());
a61af66fc99e Initial load
duke
parents:
diff changeset
2961 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2962 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2963 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
2964 scope_data()->add_to_work_list(start_block);
a61af66fc99e Initial load
duke
parents:
diff changeset
2965 iterate_all_blocks();
a61af66fc99e Initial load
duke
parents:
diff changeset
2966 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2967 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2968 CHECK_BAILOUT();
a61af66fc99e Initial load
duke
parents:
diff changeset
2969
a61af66fc99e Initial load
duke
parents:
diff changeset
2970 _start = setup_start_block(osr_bci, start_block, _osr_entry, _initial_state);
a61af66fc99e Initial load
duke
parents:
diff changeset
2971
a61af66fc99e Initial load
duke
parents:
diff changeset
2972 eliminate_redundant_phis(_start);
a61af66fc99e Initial load
duke
parents:
diff changeset
2973
a61af66fc99e Initial load
duke
parents:
diff changeset
2974 NOT_PRODUCT(if (PrintValueNumbering && Verbose) print_stats());
a61af66fc99e Initial load
duke
parents:
diff changeset
2975 // for osr compile, bailout if some requirements are not fulfilled
a61af66fc99e Initial load
duke
parents:
diff changeset
2976 if (osr_bci != -1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2977 BlockBegin* osr_block = blm.bci2block()->at(osr_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
2978 assert(osr_block->is_set(BlockBegin::was_visited_flag),"osr entry must have been visited for osr compile");
a61af66fc99e Initial load
duke
parents:
diff changeset
2979
a61af66fc99e Initial load
duke
parents:
diff changeset
2980 // check if osr entry point has empty stack - we cannot handle non-empty stacks at osr entry points
a61af66fc99e Initial load
duke
parents:
diff changeset
2981 if (!osr_block->state()->stack_is_empty()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2982 BAILOUT("stack not empty at OSR entry point");
a61af66fc99e Initial load
duke
parents:
diff changeset
2983 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2984 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2985 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
2986 if (PrintCompilation && Verbose) tty->print_cr("Created %d Instructions", _instruction_count);
a61af66fc99e Initial load
duke
parents:
diff changeset
2987 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
2988 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2989
a61af66fc99e Initial load
duke
parents:
diff changeset
2990
a61af66fc99e Initial load
duke
parents:
diff changeset
2991 ValueStack* GraphBuilder::lock_stack() {
a61af66fc99e Initial load
duke
parents:
diff changeset
2992 // return a new ValueStack representing just the current lock stack
a61af66fc99e Initial load
duke
parents:
diff changeset
2993 // (for debug info at safepoints in exception throwing or handling)
a61af66fc99e Initial load
duke
parents:
diff changeset
2994 ValueStack* new_stack = state()->copy_locks();
a61af66fc99e Initial load
duke
parents:
diff changeset
2995 return new_stack;
a61af66fc99e Initial load
duke
parents:
diff changeset
2996 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2997
a61af66fc99e Initial load
duke
parents:
diff changeset
2998
a61af66fc99e Initial load
duke
parents:
diff changeset
2999 int GraphBuilder::recursive_inline_level(ciMethod* cur_callee) const {
a61af66fc99e Initial load
duke
parents:
diff changeset
3000 int recur_level = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3001 for (IRScope* s = scope(); s != NULL; s = s->caller()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3002 if (s->method() == cur_callee) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3003 ++recur_level;
a61af66fc99e Initial load
duke
parents:
diff changeset
3004 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3005 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3006 return recur_level;
a61af66fc99e Initial load
duke
parents:
diff changeset
3007 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3008
a61af66fc99e Initial load
duke
parents:
diff changeset
3009
a61af66fc99e Initial load
duke
parents:
diff changeset
3010 bool GraphBuilder::try_inline(ciMethod* callee, bool holder_known) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3011 // Clear out any existing inline bailout condition
a61af66fc99e Initial load
duke
parents:
diff changeset
3012 clear_inline_bailout();
a61af66fc99e Initial load
duke
parents:
diff changeset
3013
a61af66fc99e Initial load
duke
parents:
diff changeset
3014 if (callee->should_exclude()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3015 // callee is excluded
a61af66fc99e Initial load
duke
parents:
diff changeset
3016 INLINE_BAILOUT("excluded by CompilerOracle")
a61af66fc99e Initial load
duke
parents:
diff changeset
3017 } else if (!callee->can_be_compiled()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3018 // callee is not compilable (prob. has breakpoints)
a61af66fc99e Initial load
duke
parents:
diff changeset
3019 INLINE_BAILOUT("not compilable")
a61af66fc99e Initial load
duke
parents:
diff changeset
3020 } else if (callee->intrinsic_id() != vmIntrinsics::_none && try_inline_intrinsics(callee)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3021 // intrinsics can be native or not
a61af66fc99e Initial load
duke
parents:
diff changeset
3022 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3023 } else if (callee->is_native()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3024 // non-intrinsic natives cannot be inlined
a61af66fc99e Initial load
duke
parents:
diff changeset
3025 INLINE_BAILOUT("non-intrinsic native")
a61af66fc99e Initial load
duke
parents:
diff changeset
3026 } else if (callee->is_abstract()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3027 INLINE_BAILOUT("abstract")
a61af66fc99e Initial load
duke
parents:
diff changeset
3028 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3029 return try_inline_full(callee, holder_known);
a61af66fc99e Initial load
duke
parents:
diff changeset
3030 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3031 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3032
a61af66fc99e Initial load
duke
parents:
diff changeset
3033
a61af66fc99e Initial load
duke
parents:
diff changeset
3034 bool GraphBuilder::try_inline_intrinsics(ciMethod* callee) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3035 if (!InlineNatives ) INLINE_BAILOUT("intrinsic method inlining disabled");
1540
99791ad65936 6953539: after 6892658 c1 reports that it doesn't inline StringBuffer.append
never
parents: 1397
diff changeset
3036 if (callee->is_synchronized()) {
99791ad65936 6953539: after 6892658 c1 reports that it doesn't inline StringBuffer.append
never
parents: 1397
diff changeset
3037 // We don't currently support any synchronized intrinsics
99791ad65936 6953539: after 6892658 c1 reports that it doesn't inline StringBuffer.append
never
parents: 1397
diff changeset
3038 return false;
99791ad65936 6953539: after 6892658 c1 reports that it doesn't inline StringBuffer.append
never
parents: 1397
diff changeset
3039 }
99791ad65936 6953539: after 6892658 c1 reports that it doesn't inline StringBuffer.append
never
parents: 1397
diff changeset
3040
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3041 // callee seems like a good candidate
a61af66fc99e Initial load
duke
parents:
diff changeset
3042 // determine id
a61af66fc99e Initial load
duke
parents:
diff changeset
3043 bool preserves_state = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3044 bool cantrap = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3045 vmIntrinsics::ID id = callee->intrinsic_id();
a61af66fc99e Initial load
duke
parents:
diff changeset
3046 switch (id) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3047 case vmIntrinsics::_arraycopy :
a61af66fc99e Initial load
duke
parents:
diff changeset
3048 if (!InlineArrayCopy) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3049 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3050
a61af66fc99e Initial load
duke
parents:
diff changeset
3051 case vmIntrinsics::_currentTimeMillis:
a61af66fc99e Initial load
duke
parents:
diff changeset
3052 case vmIntrinsics::_nanoTime:
a61af66fc99e Initial load
duke
parents:
diff changeset
3053 preserves_state = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3054 cantrap = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3055 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3056
a61af66fc99e Initial load
duke
parents:
diff changeset
3057 case vmIntrinsics::_floatToRawIntBits :
a61af66fc99e Initial load
duke
parents:
diff changeset
3058 case vmIntrinsics::_intBitsToFloat :
a61af66fc99e Initial load
duke
parents:
diff changeset
3059 case vmIntrinsics::_doubleToRawLongBits :
a61af66fc99e Initial load
duke
parents:
diff changeset
3060 case vmIntrinsics::_longBitsToDouble :
a61af66fc99e Initial load
duke
parents:
diff changeset
3061 if (!InlineMathNatives) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3062 preserves_state = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3063 cantrap = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3064 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3065
a61af66fc99e Initial load
duke
parents:
diff changeset
3066 case vmIntrinsics::_getClass :
a61af66fc99e Initial load
duke
parents:
diff changeset
3067 if (!InlineClassNatives) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3068 preserves_state = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3069 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3070
a61af66fc99e Initial load
duke
parents:
diff changeset
3071 case vmIntrinsics::_currentThread :
a61af66fc99e Initial load
duke
parents:
diff changeset
3072 if (!InlineThreadNatives) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3073 preserves_state = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3074 cantrap = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3075 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3076
a61af66fc99e Initial load
duke
parents:
diff changeset
3077 case vmIntrinsics::_dabs : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
3078 case vmIntrinsics::_dsqrt : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
3079 case vmIntrinsics::_dsin : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
3080 case vmIntrinsics::_dcos : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
3081 case vmIntrinsics::_dtan : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
3082 case vmIntrinsics::_dlog : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
3083 case vmIntrinsics::_dlog10 : // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
3084 if (!InlineMathNatives) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3085 cantrap = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3086 preserves_state = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3087 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3088
a61af66fc99e Initial load
duke
parents:
diff changeset
3089 // sun/misc/AtomicLong.attemptUpdate
a61af66fc99e Initial load
duke
parents:
diff changeset
3090 case vmIntrinsics::_attemptUpdate :
a61af66fc99e Initial load
duke
parents:
diff changeset
3091 if (!VM_Version::supports_cx8()) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3092 if (!InlineAtomicLong) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3093 preserves_state = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3094 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3095
a61af66fc99e Initial load
duke
parents:
diff changeset
3096 // Use special nodes for Unsafe instructions so we can more easily
a61af66fc99e Initial load
duke
parents:
diff changeset
3097 // perform an address-mode optimization on the raw variants
a61af66fc99e Initial load
duke
parents:
diff changeset
3098 case vmIntrinsics::_getObject : return append_unsafe_get_obj(callee, T_OBJECT, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3099 case vmIntrinsics::_getBoolean: return append_unsafe_get_obj(callee, T_BOOLEAN, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3100 case vmIntrinsics::_getByte : return append_unsafe_get_obj(callee, T_BYTE, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3101 case vmIntrinsics::_getShort : return append_unsafe_get_obj(callee, T_SHORT, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3102 case vmIntrinsics::_getChar : return append_unsafe_get_obj(callee, T_CHAR, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3103 case vmIntrinsics::_getInt : return append_unsafe_get_obj(callee, T_INT, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3104 case vmIntrinsics::_getLong : return append_unsafe_get_obj(callee, T_LONG, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3105 case vmIntrinsics::_getFloat : return append_unsafe_get_obj(callee, T_FLOAT, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3106 case vmIntrinsics::_getDouble : return append_unsafe_get_obj(callee, T_DOUBLE, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3107
a61af66fc99e Initial load
duke
parents:
diff changeset
3108 case vmIntrinsics::_putObject : return append_unsafe_put_obj(callee, T_OBJECT, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3109 case vmIntrinsics::_putBoolean: return append_unsafe_put_obj(callee, T_BOOLEAN, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3110 case vmIntrinsics::_putByte : return append_unsafe_put_obj(callee, T_BYTE, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3111 case vmIntrinsics::_putShort : return append_unsafe_put_obj(callee, T_SHORT, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3112 case vmIntrinsics::_putChar : return append_unsafe_put_obj(callee, T_CHAR, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3113 case vmIntrinsics::_putInt : return append_unsafe_put_obj(callee, T_INT, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3114 case vmIntrinsics::_putLong : return append_unsafe_put_obj(callee, T_LONG, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3115 case vmIntrinsics::_putFloat : return append_unsafe_put_obj(callee, T_FLOAT, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3116 case vmIntrinsics::_putDouble : return append_unsafe_put_obj(callee, T_DOUBLE, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3117
a61af66fc99e Initial load
duke
parents:
diff changeset
3118 case vmIntrinsics::_getObjectVolatile : return append_unsafe_get_obj(callee, T_OBJECT, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3119 case vmIntrinsics::_getBooleanVolatile: return append_unsafe_get_obj(callee, T_BOOLEAN, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3120 case vmIntrinsics::_getByteVolatile : return append_unsafe_get_obj(callee, T_BYTE, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3121 case vmIntrinsics::_getShortVolatile : return append_unsafe_get_obj(callee, T_SHORT, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3122 case vmIntrinsics::_getCharVolatile : return append_unsafe_get_obj(callee, T_CHAR, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3123 case vmIntrinsics::_getIntVolatile : return append_unsafe_get_obj(callee, T_INT, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3124 case vmIntrinsics::_getLongVolatile : return append_unsafe_get_obj(callee, T_LONG, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3125 case vmIntrinsics::_getFloatVolatile : return append_unsafe_get_obj(callee, T_FLOAT, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3126 case vmIntrinsics::_getDoubleVolatile : return append_unsafe_get_obj(callee, T_DOUBLE, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3127
a61af66fc99e Initial load
duke
parents:
diff changeset
3128 case vmIntrinsics::_putObjectVolatile : return append_unsafe_put_obj(callee, T_OBJECT, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3129 case vmIntrinsics::_putBooleanVolatile: return append_unsafe_put_obj(callee, T_BOOLEAN, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3130 case vmIntrinsics::_putByteVolatile : return append_unsafe_put_obj(callee, T_BYTE, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3131 case vmIntrinsics::_putShortVolatile : return append_unsafe_put_obj(callee, T_SHORT, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3132 case vmIntrinsics::_putCharVolatile : return append_unsafe_put_obj(callee, T_CHAR, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3133 case vmIntrinsics::_putIntVolatile : return append_unsafe_put_obj(callee, T_INT, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3134 case vmIntrinsics::_putLongVolatile : return append_unsafe_put_obj(callee, T_LONG, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3135 case vmIntrinsics::_putFloatVolatile : return append_unsafe_put_obj(callee, T_FLOAT, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3136 case vmIntrinsics::_putDoubleVolatile : return append_unsafe_put_obj(callee, T_DOUBLE, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3137
a61af66fc99e Initial load
duke
parents:
diff changeset
3138 case vmIntrinsics::_getByte_raw : return append_unsafe_get_raw(callee, T_BYTE);
a61af66fc99e Initial load
duke
parents:
diff changeset
3139 case vmIntrinsics::_getShort_raw : return append_unsafe_get_raw(callee, T_SHORT);
a61af66fc99e Initial load
duke
parents:
diff changeset
3140 case vmIntrinsics::_getChar_raw : return append_unsafe_get_raw(callee, T_CHAR);
a61af66fc99e Initial load
duke
parents:
diff changeset
3141 case vmIntrinsics::_getInt_raw : return append_unsafe_get_raw(callee, T_INT);
a61af66fc99e Initial load
duke
parents:
diff changeset
3142 case vmIntrinsics::_getLong_raw : return append_unsafe_get_raw(callee, T_LONG);
a61af66fc99e Initial load
duke
parents:
diff changeset
3143 case vmIntrinsics::_getFloat_raw : return append_unsafe_get_raw(callee, T_FLOAT);
a61af66fc99e Initial load
duke
parents:
diff changeset
3144 case vmIntrinsics::_getDouble_raw : return append_unsafe_get_raw(callee, T_DOUBLE);
a61af66fc99e Initial load
duke
parents:
diff changeset
3145
a61af66fc99e Initial load
duke
parents:
diff changeset
3146 case vmIntrinsics::_putByte_raw : return append_unsafe_put_raw(callee, T_BYTE);
a61af66fc99e Initial load
duke
parents:
diff changeset
3147 case vmIntrinsics::_putShort_raw : return append_unsafe_put_raw(callee, T_SHORT);
a61af66fc99e Initial load
duke
parents:
diff changeset
3148 case vmIntrinsics::_putChar_raw : return append_unsafe_put_raw(callee, T_CHAR);
a61af66fc99e Initial load
duke
parents:
diff changeset
3149 case vmIntrinsics::_putInt_raw : return append_unsafe_put_raw(callee, T_INT);
a61af66fc99e Initial load
duke
parents:
diff changeset
3150 case vmIntrinsics::_putLong_raw : return append_unsafe_put_raw(callee, T_LONG);
a61af66fc99e Initial load
duke
parents:
diff changeset
3151 case vmIntrinsics::_putFloat_raw : return append_unsafe_put_raw(callee, T_FLOAT);
a61af66fc99e Initial load
duke
parents:
diff changeset
3152 case vmIntrinsics::_putDouble_raw : return append_unsafe_put_raw(callee, T_DOUBLE);
a61af66fc99e Initial load
duke
parents:
diff changeset
3153
a61af66fc99e Initial load
duke
parents:
diff changeset
3154 case vmIntrinsics::_prefetchRead : return append_unsafe_prefetch(callee, false, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3155 case vmIntrinsics::_prefetchWrite : return append_unsafe_prefetch(callee, false, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3156 case vmIntrinsics::_prefetchReadStatic : return append_unsafe_prefetch(callee, true, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3157 case vmIntrinsics::_prefetchWriteStatic : return append_unsafe_prefetch(callee, true, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3158
a61af66fc99e Initial load
duke
parents:
diff changeset
3159 case vmIntrinsics::_checkIndex :
a61af66fc99e Initial load
duke
parents:
diff changeset
3160 if (!InlineNIOCheckIndex) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3161 preserves_state = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3162 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3163 case vmIntrinsics::_putOrderedObject : return append_unsafe_put_obj(callee, T_OBJECT, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3164 case vmIntrinsics::_putOrderedInt : return append_unsafe_put_obj(callee, T_INT, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3165 case vmIntrinsics::_putOrderedLong : return append_unsafe_put_obj(callee, T_LONG, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3166
a61af66fc99e Initial load
duke
parents:
diff changeset
3167 case vmIntrinsics::_compareAndSwapLong:
a61af66fc99e Initial load
duke
parents:
diff changeset
3168 if (!VM_Version::supports_cx8()) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3169 // fall through
a61af66fc99e Initial load
duke
parents:
diff changeset
3170 case vmIntrinsics::_compareAndSwapInt:
a61af66fc99e Initial load
duke
parents:
diff changeset
3171 case vmIntrinsics::_compareAndSwapObject:
a61af66fc99e Initial load
duke
parents:
diff changeset
3172 append_unsafe_CAS(callee);
a61af66fc99e Initial load
duke
parents:
diff changeset
3173 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3174
a61af66fc99e Initial load
duke
parents:
diff changeset
3175 default : return false; // do not inline
a61af66fc99e Initial load
duke
parents:
diff changeset
3176 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3177 // create intrinsic node
a61af66fc99e Initial load
duke
parents:
diff changeset
3178 const bool has_receiver = !callee->is_static();
a61af66fc99e Initial load
duke
parents:
diff changeset
3179 ValueType* result_type = as_ValueType(callee->return_type());
a61af66fc99e Initial load
duke
parents:
diff changeset
3180
a61af66fc99e Initial load
duke
parents:
diff changeset
3181 Values* args = state()->pop_arguments(callee->arg_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
3182 ValueStack* locks = lock_stack();
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3183
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3184 if (is_profiling()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3185 // Don't profile in the special case where the root method
a61af66fc99e Initial load
duke
parents:
diff changeset
3186 // is the intrinsic
a61af66fc99e Initial load
duke
parents:
diff changeset
3187 if (callee != method()) {
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3188 // Note that we'd collect profile data in this method if we wanted it.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3189 compilation()->set_would_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3190 if (profile_calls()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3191 Value recv = NULL;
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3192 if (has_receiver) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3193 recv = args->at(0);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3194 null_check(recv);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3195 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3196 profile_call(recv, NULL);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3197 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3198 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3199 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3200
a61af66fc99e Initial load
duke
parents:
diff changeset
3201 Intrinsic* result = new Intrinsic(result_type, id, args, has_receiver, lock_stack(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3202 preserves_state, cantrap);
a61af66fc99e Initial load
duke
parents:
diff changeset
3203 // append instruction & push result
a61af66fc99e Initial load
duke
parents:
diff changeset
3204 Value value = append_split(result);
a61af66fc99e Initial load
duke
parents:
diff changeset
3205 if (result_type != voidType) push(result_type, value);
a61af66fc99e Initial load
duke
parents:
diff changeset
3206
a61af66fc99e Initial load
duke
parents:
diff changeset
3207 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
3208 // printing
a61af66fc99e Initial load
duke
parents:
diff changeset
3209 if (PrintInlining) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3210 print_inline_result(callee, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3211 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3212 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3213
a61af66fc99e Initial load
duke
parents:
diff changeset
3214 // done
a61af66fc99e Initial load
duke
parents:
diff changeset
3215 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3216 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3217
a61af66fc99e Initial load
duke
parents:
diff changeset
3218
a61af66fc99e Initial load
duke
parents:
diff changeset
3219 bool GraphBuilder::try_inline_jsr(int jsr_dest_bci) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3220 // Introduce a new callee continuation point - all Ret instructions
a61af66fc99e Initial load
duke
parents:
diff changeset
3221 // will be replaced with Gotos to this point.
a61af66fc99e Initial load
duke
parents:
diff changeset
3222 BlockBegin* cont = block_at(next_bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
3223 assert(cont != NULL, "continuation must exist (BlockListBuilder starts a new block after a jsr");
a61af66fc99e Initial load
duke
parents:
diff changeset
3224
a61af66fc99e Initial load
duke
parents:
diff changeset
3225 // Note: can not assign state to continuation yet, as we have to
a61af66fc99e Initial load
duke
parents:
diff changeset
3226 // pick up the state from the Ret instructions.
a61af66fc99e Initial load
duke
parents:
diff changeset
3227
a61af66fc99e Initial load
duke
parents:
diff changeset
3228 // Push callee scope
a61af66fc99e Initial load
duke
parents:
diff changeset
3229 push_scope_for_jsr(cont, jsr_dest_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
3230
a61af66fc99e Initial load
duke
parents:
diff changeset
3231 // Temporarily set up bytecode stream so we can append instructions
a61af66fc99e Initial load
duke
parents:
diff changeset
3232 // (only using the bci of this stream)
a61af66fc99e Initial load
duke
parents:
diff changeset
3233 scope_data()->set_stream(scope_data()->parent()->stream());
a61af66fc99e Initial load
duke
parents:
diff changeset
3234
a61af66fc99e Initial load
duke
parents:
diff changeset
3235 BlockBegin* jsr_start_block = block_at(jsr_dest_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
3236 assert(jsr_start_block != NULL, "jsr start block must exist");
a61af66fc99e Initial load
duke
parents:
diff changeset
3237 assert(!jsr_start_block->is_set(BlockBegin::was_visited_flag), "should not have visited jsr yet");
a61af66fc99e Initial load
duke
parents:
diff changeset
3238 Goto* goto_sub = new Goto(jsr_start_block, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3239 goto_sub->set_state(state());
a61af66fc99e Initial load
duke
parents:
diff changeset
3240 // Must copy state to avoid wrong sharing when parsing bytecodes
a61af66fc99e Initial load
duke
parents:
diff changeset
3241 assert(jsr_start_block->state() == NULL, "should have fresh jsr starting block");
a61af66fc99e Initial load
duke
parents:
diff changeset
3242 jsr_start_block->set_state(state()->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
3243 append(goto_sub);
a61af66fc99e Initial load
duke
parents:
diff changeset
3244 _block->set_end(goto_sub);
a61af66fc99e Initial load
duke
parents:
diff changeset
3245 _last = _block = jsr_start_block;
a61af66fc99e Initial load
duke
parents:
diff changeset
3246
a61af66fc99e Initial load
duke
parents:
diff changeset
3247 // Clear out bytecode stream
a61af66fc99e Initial load
duke
parents:
diff changeset
3248 scope_data()->set_stream(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
3249
a61af66fc99e Initial load
duke
parents:
diff changeset
3250 scope_data()->add_to_work_list(jsr_start_block);
a61af66fc99e Initial load
duke
parents:
diff changeset
3251
a61af66fc99e Initial load
duke
parents:
diff changeset
3252 // Ready to resume parsing in subroutine
a61af66fc99e Initial load
duke
parents:
diff changeset
3253 iterate_all_blocks();
a61af66fc99e Initial load
duke
parents:
diff changeset
3254
a61af66fc99e Initial load
duke
parents:
diff changeset
3255 // If we bailed out during parsing, return immediately (this is bad news)
a61af66fc99e Initial load
duke
parents:
diff changeset
3256 CHECK_BAILOUT_(false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3257
a61af66fc99e Initial load
duke
parents:
diff changeset
3258 // Detect whether the continuation can actually be reached. If not,
a61af66fc99e Initial load
duke
parents:
diff changeset
3259 // it has not had state set by the join() operations in
a61af66fc99e Initial load
duke
parents:
diff changeset
3260 // iterate_bytecodes_for_block()/ret() and we should not touch the
a61af66fc99e Initial load
duke
parents:
diff changeset
3261 // iteration state. The calling activation of
a61af66fc99e Initial load
duke
parents:
diff changeset
3262 // iterate_bytecodes_for_block will then complete normally.
a61af66fc99e Initial load
duke
parents:
diff changeset
3263 if (cont->state() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3264 if (!cont->is_set(BlockBegin::was_visited_flag)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3265 // add continuation to work list instead of parsing it immediately
a61af66fc99e Initial load
duke
parents:
diff changeset
3266 scope_data()->parent()->add_to_work_list(cont);
a61af66fc99e Initial load
duke
parents:
diff changeset
3267 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3268 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3269
a61af66fc99e Initial load
duke
parents:
diff changeset
3270 assert(jsr_continuation() == cont, "continuation must not have changed");
a61af66fc99e Initial load
duke
parents:
diff changeset
3271 assert(!jsr_continuation()->is_set(BlockBegin::was_visited_flag) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3272 jsr_continuation()->is_set(BlockBegin::parser_loop_header_flag),
a61af66fc99e Initial load
duke
parents:
diff changeset
3273 "continuation can only be visited in case of backward branches");
a61af66fc99e Initial load
duke
parents:
diff changeset
3274 assert(_last && _last->as_BlockEnd(), "block must have end");
a61af66fc99e Initial load
duke
parents:
diff changeset
3275
a61af66fc99e Initial load
duke
parents:
diff changeset
3276 // continuation is in work list, so end iteration of current block
a61af66fc99e Initial load
duke
parents:
diff changeset
3277 _skip_block = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3278 pop_scope_for_jsr();
a61af66fc99e Initial load
duke
parents:
diff changeset
3279
a61af66fc99e Initial load
duke
parents:
diff changeset
3280 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3281 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3282
a61af66fc99e Initial load
duke
parents:
diff changeset
3283
a61af66fc99e Initial load
duke
parents:
diff changeset
3284 // Inline the entry of a synchronized method as a monitor enter and
a61af66fc99e Initial load
duke
parents:
diff changeset
3285 // register the exception handler which releases the monitor if an
a61af66fc99e Initial load
duke
parents:
diff changeset
3286 // exception is thrown within the callee. Note that the monitor enter
a61af66fc99e Initial load
duke
parents:
diff changeset
3287 // cannot throw an exception itself, because the receiver is
a61af66fc99e Initial load
duke
parents:
diff changeset
3288 // guaranteed to be non-null by the explicit null check at the
a61af66fc99e Initial load
duke
parents:
diff changeset
3289 // beginning of inlining.
a61af66fc99e Initial load
duke
parents:
diff changeset
3290 void GraphBuilder::inline_sync_entry(Value lock, BlockBegin* sync_handler) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3291 assert(lock != NULL && sync_handler != NULL, "lock or handler missing");
a61af66fc99e Initial load
duke
parents:
diff changeset
3292
a61af66fc99e Initial load
duke
parents:
diff changeset
3293 set_exception_state(state()->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
3294 monitorenter(lock, SynchronizationEntryBCI);
a61af66fc99e Initial load
duke
parents:
diff changeset
3295 assert(_last->as_MonitorEnter() != NULL, "monitor enter expected");
a61af66fc99e Initial load
duke
parents:
diff changeset
3296 _last->set_needs_null_check(false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3297
a61af66fc99e Initial load
duke
parents:
diff changeset
3298 sync_handler->set(BlockBegin::exception_entry_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
3299 sync_handler->set(BlockBegin::is_on_work_list_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
3300
a61af66fc99e Initial load
duke
parents:
diff changeset
3301 ciExceptionHandler* desc = new ciExceptionHandler(method()->holder(), 0, method()->code_size(), -1, 0);
a61af66fc99e Initial load
duke
parents:
diff changeset
3302 XHandler* h = new XHandler(desc);
a61af66fc99e Initial load
duke
parents:
diff changeset
3303 h->set_entry_block(sync_handler);
a61af66fc99e Initial load
duke
parents:
diff changeset
3304 scope_data()->xhandlers()->append(h);
a61af66fc99e Initial load
duke
parents:
diff changeset
3305 scope_data()->set_has_handler();
a61af66fc99e Initial load
duke
parents:
diff changeset
3306 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3307
a61af66fc99e Initial load
duke
parents:
diff changeset
3308
a61af66fc99e Initial load
duke
parents:
diff changeset
3309 // If an exception is thrown and not handled within an inlined
a61af66fc99e Initial load
duke
parents:
diff changeset
3310 // synchronized method, the monitor must be released before the
a61af66fc99e Initial load
duke
parents:
diff changeset
3311 // exception is rethrown in the outer scope. Generate the appropriate
a61af66fc99e Initial load
duke
parents:
diff changeset
3312 // instructions here.
a61af66fc99e Initial load
duke
parents:
diff changeset
3313 void GraphBuilder::fill_sync_handler(Value lock, BlockBegin* sync_handler, bool default_handler) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3314 BlockBegin* orig_block = _block;
a61af66fc99e Initial load
duke
parents:
diff changeset
3315 ValueStack* orig_state = _state;
a61af66fc99e Initial load
duke
parents:
diff changeset
3316 Instruction* orig_last = _last;
a61af66fc99e Initial load
duke
parents:
diff changeset
3317 _last = _block = sync_handler;
a61af66fc99e Initial load
duke
parents:
diff changeset
3318 _state = sync_handler->state()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
3319
a61af66fc99e Initial load
duke
parents:
diff changeset
3320 assert(sync_handler != NULL, "handler missing");
a61af66fc99e Initial load
duke
parents:
diff changeset
3321 assert(!sync_handler->is_set(BlockBegin::was_visited_flag), "is visited here");
a61af66fc99e Initial load
duke
parents:
diff changeset
3322
a61af66fc99e Initial load
duke
parents:
diff changeset
3323 assert(lock != NULL || default_handler, "lock or handler missing");
a61af66fc99e Initial load
duke
parents:
diff changeset
3324
a61af66fc99e Initial load
duke
parents:
diff changeset
3325 XHandler* h = scope_data()->xhandlers()->remove_last();
a61af66fc99e Initial load
duke
parents:
diff changeset
3326 assert(h->entry_block() == sync_handler, "corrupt list of handlers");
a61af66fc99e Initial load
duke
parents:
diff changeset
3327
a61af66fc99e Initial load
duke
parents:
diff changeset
3328 block()->set(BlockBegin::was_visited_flag);
a61af66fc99e Initial load
duke
parents:
diff changeset
3329 Value exception = append_with_bci(new ExceptionObject(), SynchronizationEntryBCI);
a61af66fc99e Initial load
duke
parents:
diff changeset
3330 assert(exception->is_pinned(), "must be");
a61af66fc99e Initial load
duke
parents:
diff changeset
3331
a61af66fc99e Initial load
duke
parents:
diff changeset
3332 int bci = SynchronizationEntryBCI;
a61af66fc99e Initial load
duke
parents:
diff changeset
3333 if (lock) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3334 assert(state()->locks_size() > 0 && state()->lock_at(state()->locks_size() - 1) == lock, "lock is missing");
a61af66fc99e Initial load
duke
parents:
diff changeset
3335 if (lock->bci() == -99) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3336 lock = append_with_bci(lock, -1);
a61af66fc99e Initial load
duke
parents:
diff changeset
3337 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3338
a61af66fc99e Initial load
duke
parents:
diff changeset
3339 // exit the monitor in the context of the synchronized method
a61af66fc99e Initial load
duke
parents:
diff changeset
3340 monitorexit(lock, SynchronizationEntryBCI);
a61af66fc99e Initial load
duke
parents:
diff changeset
3341
a61af66fc99e Initial load
duke
parents:
diff changeset
3342 // exit the context of the synchronized method
a61af66fc99e Initial load
duke
parents:
diff changeset
3343 if (!default_handler) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3344 pop_scope();
a61af66fc99e Initial load
duke
parents:
diff changeset
3345 _state = _state->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
3346 bci = _state->scope()->caller_bci();
a61af66fc99e Initial load
duke
parents:
diff changeset
3347 _state = _state->pop_scope()->copy();
a61af66fc99e Initial load
duke
parents:
diff changeset
3348 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3349 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3350
a61af66fc99e Initial load
duke
parents:
diff changeset
3351 // perform the throw as if at the the call site
a61af66fc99e Initial load
duke
parents:
diff changeset
3352 apush(exception);
a61af66fc99e Initial load
duke
parents:
diff changeset
3353
a61af66fc99e Initial load
duke
parents:
diff changeset
3354 set_exception_state(state()->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
3355 throw_op(bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
3356
a61af66fc99e Initial load
duke
parents:
diff changeset
3357 BlockEnd* end = last()->as_BlockEnd();
a61af66fc99e Initial load
duke
parents:
diff changeset
3358 block()->set_end(end);
a61af66fc99e Initial load
duke
parents:
diff changeset
3359 end->set_state(state());
a61af66fc99e Initial load
duke
parents:
diff changeset
3360
a61af66fc99e Initial load
duke
parents:
diff changeset
3361 _block = orig_block;
a61af66fc99e Initial load
duke
parents:
diff changeset
3362 _state = orig_state;
a61af66fc99e Initial load
duke
parents:
diff changeset
3363 _last = orig_last;
a61af66fc99e Initial load
duke
parents:
diff changeset
3364 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3365
a61af66fc99e Initial load
duke
parents:
diff changeset
3366
a61af66fc99e Initial load
duke
parents:
diff changeset
3367 bool GraphBuilder::try_inline_full(ciMethod* callee, bool holder_known) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3368 assert(!callee->is_native(), "callee must not be native");
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3369 if (count_backedges() && callee->has_loops()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3370 INLINE_BAILOUT("too complex for tiered");
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3371 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3372 // first perform tests of things it's not possible to inline
a61af66fc99e Initial load
duke
parents:
diff changeset
3373 if (callee->has_exception_handlers() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3374 !InlineMethodsWithExceptionHandlers) INLINE_BAILOUT("callee has exception handlers");
a61af66fc99e Initial load
duke
parents:
diff changeset
3375 if (callee->is_synchronized() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3376 !InlineSynchronizedMethods ) INLINE_BAILOUT("callee is synchronized");
a61af66fc99e Initial load
duke
parents:
diff changeset
3377 if (!callee->holder()->is_initialized()) INLINE_BAILOUT("callee's klass not initialized yet");
a61af66fc99e Initial load
duke
parents:
diff changeset
3378 if (!callee->has_balanced_monitors()) INLINE_BAILOUT("callee's monitors do not match");
a61af66fc99e Initial load
duke
parents:
diff changeset
3379
a61af66fc99e Initial load
duke
parents:
diff changeset
3380 // Proper inlining of methods with jsrs requires a little more work.
a61af66fc99e Initial load
duke
parents:
diff changeset
3381 if (callee->has_jsrs() ) INLINE_BAILOUT("jsrs not handled properly by inliner yet");
a61af66fc99e Initial load
duke
parents:
diff changeset
3382
a61af66fc99e Initial load
duke
parents:
diff changeset
3383 // now perform tests that are based on flag settings
a61af66fc99e Initial load
duke
parents:
diff changeset
3384 if (inline_level() > MaxInlineLevel ) INLINE_BAILOUT("too-deep inlining");
a61af66fc99e Initial load
duke
parents:
diff changeset
3385 if (recursive_inline_level(callee) > MaxRecursiveInlineLevel) INLINE_BAILOUT("too-deep recursive inlining");
a61af66fc99e Initial load
duke
parents:
diff changeset
3386 if (callee->code_size() > max_inline_size() ) INLINE_BAILOUT("callee is too large");
a61af66fc99e Initial load
duke
parents:
diff changeset
3387
a61af66fc99e Initial load
duke
parents:
diff changeset
3388 // don't inline throwable methods unless the inlining tree is rooted in a throwable class
a61af66fc99e Initial load
duke
parents:
diff changeset
3389 if (callee->name() == ciSymbol::object_initializer_name() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3390 callee->holder()->is_subclass_of(ciEnv::current()->Throwable_klass())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3391 // Throwable constructor call
a61af66fc99e Initial load
duke
parents:
diff changeset
3392 IRScope* top = scope();
a61af66fc99e Initial load
duke
parents:
diff changeset
3393 while (top->caller() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3394 top = top->caller();
a61af66fc99e Initial load
duke
parents:
diff changeset
3395 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3396 if (!top->method()->holder()->is_subclass_of(ciEnv::current()->Throwable_klass())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3397 INLINE_BAILOUT("don't inline Throwable constructors");
a61af66fc99e Initial load
duke
parents:
diff changeset
3398 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3399 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3400
a61af66fc99e Initial load
duke
parents:
diff changeset
3401 // When SSE2 is used on intel, then no special handling is needed
a61af66fc99e Initial load
duke
parents:
diff changeset
3402 // for strictfp because the enum-constant is fixed at compile time,
a61af66fc99e Initial load
duke
parents:
diff changeset
3403 // the check for UseSSE2 is needed here
a61af66fc99e Initial load
duke
parents:
diff changeset
3404 if (strict_fp_requires_explicit_rounding && UseSSE < 2 && method()->is_strict() != callee->is_strict()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3405 INLINE_BAILOUT("caller and callee have different strict fp requirements");
a61af66fc99e Initial load
duke
parents:
diff changeset
3406 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3407
a61af66fc99e Initial load
duke
parents:
diff changeset
3408 if (compilation()->env()->num_inlined_bytecodes() > DesiredMethodLimit) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3409 INLINE_BAILOUT("total inlining greater than DesiredMethodLimit");
a61af66fc99e Initial load
duke
parents:
diff changeset
3410 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3411
a61af66fc99e Initial load
duke
parents:
diff changeset
3412 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
3413 // printing
a61af66fc99e Initial load
duke
parents:
diff changeset
3414 if (PrintInlining) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3415 print_inline_result(callee, true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3416 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3417 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3418
a61af66fc99e Initial load
duke
parents:
diff changeset
3419 // NOTE: Bailouts from this point on, which occur at the
a61af66fc99e Initial load
duke
parents:
diff changeset
3420 // GraphBuilder level, do not cause bailout just of the inlining but
a61af66fc99e Initial load
duke
parents:
diff changeset
3421 // in fact of the entire compilation.
a61af66fc99e Initial load
duke
parents:
diff changeset
3422
a61af66fc99e Initial load
duke
parents:
diff changeset
3423 BlockBegin* orig_block = block();
a61af66fc99e Initial load
duke
parents:
diff changeset
3424
a61af66fc99e Initial load
duke
parents:
diff changeset
3425 const int args_base = state()->stack_size() - callee->arg_size();
a61af66fc99e Initial load
duke
parents:
diff changeset
3426 assert(args_base >= 0, "stack underflow during inlining");
a61af66fc99e Initial load
duke
parents:
diff changeset
3427
a61af66fc99e Initial load
duke
parents:
diff changeset
3428 // Insert null check if necessary
a61af66fc99e Initial load
duke
parents:
diff changeset
3429 Value recv = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
3430 if (code() != Bytecodes::_invokestatic) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3431 // note: null check must happen even if first instruction of callee does
a61af66fc99e Initial load
duke
parents:
diff changeset
3432 // an implicit null check since the callee is in a different scope
a61af66fc99e Initial load
duke
parents:
diff changeset
3433 // and we must make sure exception handling does the right thing
a61af66fc99e Initial load
duke
parents:
diff changeset
3434 assert(!callee->is_static(), "callee must not be static");
a61af66fc99e Initial load
duke
parents:
diff changeset
3435 assert(callee->arg_size() > 0, "must have at least a receiver");
a61af66fc99e Initial load
duke
parents:
diff changeset
3436 recv = state()->stack_at(args_base);
a61af66fc99e Initial load
duke
parents:
diff changeset
3437 null_check(recv);
a61af66fc99e Initial load
duke
parents:
diff changeset
3438 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3439
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3440 if (is_profiling()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3441 // Note that we'd collect profile data in this method if we wanted it.
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3442 // this may be redundant here...
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3443 compilation()->set_would_profile(true);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3444
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3445 if (profile_calls()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3446 profile_call(recv, holder_known ? callee->holder() : NULL);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3447 }
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3448 if (profile_inlined_calls()) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3449 profile_invocation(callee, state(), 0);
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3450 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3451 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3452
a61af66fc99e Initial load
duke
parents:
diff changeset
3453 // Introduce a new callee continuation point - if the callee has
a61af66fc99e Initial load
duke
parents:
diff changeset
3454 // more than one return instruction or the return does not allow
a61af66fc99e Initial load
duke
parents:
diff changeset
3455 // fall-through of control flow, all return instructions of the
a61af66fc99e Initial load
duke
parents:
diff changeset
3456 // callee will need to be replaced by Goto's pointing to this
a61af66fc99e Initial load
duke
parents:
diff changeset
3457 // continuation point.
a61af66fc99e Initial load
duke
parents:
diff changeset
3458 BlockBegin* cont = block_at(next_bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
3459 bool continuation_existed = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3460 if (cont == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3461 cont = new BlockBegin(next_bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
3462 // low number so that continuation gets parsed as early as possible
a61af66fc99e Initial load
duke
parents:
diff changeset
3463 cont->set_depth_first_number(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
3464 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
3465 if (PrintInitialBlockList) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3466 tty->print_cr("CFG: created block %d (bci %d) as continuation for inline at bci %d",
a61af66fc99e Initial load
duke
parents:
diff changeset
3467 cont->block_id(), cont->bci(), bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
3468 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3469 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3470 continuation_existed = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3471 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3472 // Record number of predecessors of continuation block before
a61af66fc99e Initial load
duke
parents:
diff changeset
3473 // inlining, to detect if inlined method has edges to its
a61af66fc99e Initial load
duke
parents:
diff changeset
3474 // continuation after inlining.
a61af66fc99e Initial load
duke
parents:
diff changeset
3475 int continuation_preds = cont->number_of_preds();
a61af66fc99e Initial load
duke
parents:
diff changeset
3476
a61af66fc99e Initial load
duke
parents:
diff changeset
3477 // Push callee scope
a61af66fc99e Initial load
duke
parents:
diff changeset
3478 push_scope(callee, cont);
a61af66fc99e Initial load
duke
parents:
diff changeset
3479
a61af66fc99e Initial load
duke
parents:
diff changeset
3480 // the BlockListBuilder for the callee could have bailed out
a61af66fc99e Initial load
duke
parents:
diff changeset
3481 CHECK_BAILOUT_(false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3482
a61af66fc99e Initial load
duke
parents:
diff changeset
3483 // Temporarily set up bytecode stream so we can append instructions
a61af66fc99e Initial load
duke
parents:
diff changeset
3484 // (only using the bci of this stream)
a61af66fc99e Initial load
duke
parents:
diff changeset
3485 scope_data()->set_stream(scope_data()->parent()->stream());
a61af66fc99e Initial load
duke
parents:
diff changeset
3486
a61af66fc99e Initial load
duke
parents:
diff changeset
3487 // Pass parameters into callee state: add assignments
a61af66fc99e Initial load
duke
parents:
diff changeset
3488 // note: this will also ensure that all arguments are computed before being passed
a61af66fc99e Initial load
duke
parents:
diff changeset
3489 ValueStack* callee_state = state();
a61af66fc99e Initial load
duke
parents:
diff changeset
3490 ValueStack* caller_state = scope()->caller_state();
a61af66fc99e Initial load
duke
parents:
diff changeset
3491 { int i = args_base;
a61af66fc99e Initial load
duke
parents:
diff changeset
3492 while (i < caller_state->stack_size()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3493 const int par_no = i - args_base;
a61af66fc99e Initial load
duke
parents:
diff changeset
3494 Value arg = caller_state->stack_at_inc(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
3495 // NOTE: take base() of arg->type() to avoid problems storing
a61af66fc99e Initial load
duke
parents:
diff changeset
3496 // constants
a61af66fc99e Initial load
duke
parents:
diff changeset
3497 store_local(callee_state, arg, arg->type()->base(), par_no);
a61af66fc99e Initial load
duke
parents:
diff changeset
3498 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3499 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3500
a61af66fc99e Initial load
duke
parents:
diff changeset
3501 // Remove args from stack.
a61af66fc99e Initial load
duke
parents:
diff changeset
3502 // Note that we preserve locals state in case we can use it later
a61af66fc99e Initial load
duke
parents:
diff changeset
3503 // (see use of pop_scope() below)
a61af66fc99e Initial load
duke
parents:
diff changeset
3504 caller_state->truncate_stack(args_base);
a61af66fc99e Initial load
duke
parents:
diff changeset
3505 callee_state->truncate_stack(args_base);
a61af66fc99e Initial load
duke
parents:
diff changeset
3506
a61af66fc99e Initial load
duke
parents:
diff changeset
3507 // Setup state that is used at returns form the inlined method.
a61af66fc99e Initial load
duke
parents:
diff changeset
3508 // This is essentially the state of the continuation block,
a61af66fc99e Initial load
duke
parents:
diff changeset
3509 // but without the return value on stack, if any, this will
a61af66fc99e Initial load
duke
parents:
diff changeset
3510 // be pushed at the return instruction (see method_return).
a61af66fc99e Initial load
duke
parents:
diff changeset
3511 scope_data()->set_continuation_state(caller_state->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
3512
a61af66fc99e Initial load
duke
parents:
diff changeset
3513 // Compute lock stack size for callee scope now that args have been passed
a61af66fc99e Initial load
duke
parents:
diff changeset
3514 scope()->compute_lock_stack_size();
a61af66fc99e Initial load
duke
parents:
diff changeset
3515
a61af66fc99e Initial load
duke
parents:
diff changeset
3516 Value lock;
a61af66fc99e Initial load
duke
parents:
diff changeset
3517 BlockBegin* sync_handler;
a61af66fc99e Initial load
duke
parents:
diff changeset
3518
a61af66fc99e Initial load
duke
parents:
diff changeset
3519 // Inline the locking of the receiver if the callee is synchronized
a61af66fc99e Initial load
duke
parents:
diff changeset
3520 if (callee->is_synchronized()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3521 lock = callee->is_static() ? append(new Constant(new InstanceConstant(callee->holder()->java_mirror())))
a61af66fc99e Initial load
duke
parents:
diff changeset
3522 : state()->local_at(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
3523 sync_handler = new BlockBegin(-1);
a61af66fc99e Initial load
duke
parents:
diff changeset
3524 inline_sync_entry(lock, sync_handler);
a61af66fc99e Initial load
duke
parents:
diff changeset
3525
a61af66fc99e Initial load
duke
parents:
diff changeset
3526 // recompute the lock stack size
a61af66fc99e Initial load
duke
parents:
diff changeset
3527 scope()->compute_lock_stack_size();
a61af66fc99e Initial load
duke
parents:
diff changeset
3528 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3529
a61af66fc99e Initial load
duke
parents:
diff changeset
3530
a61af66fc99e Initial load
duke
parents:
diff changeset
3531 BlockBegin* callee_start_block = block_at(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
3532 if (callee_start_block != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3533 assert(callee_start_block->is_set(BlockBegin::parser_loop_header_flag), "must be loop header");
a61af66fc99e Initial load
duke
parents:
diff changeset
3534 Goto* goto_callee = new Goto(callee_start_block, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3535 goto_callee->set_state(state());
a61af66fc99e Initial load
duke
parents:
diff changeset
3536 // The state for this goto is in the scope of the callee, so use
a61af66fc99e Initial load
duke
parents:
diff changeset
3537 // the entry bci for the callee instead of the call site bci.
a61af66fc99e Initial load
duke
parents:
diff changeset
3538 append_with_bci(goto_callee, 0);
a61af66fc99e Initial load
duke
parents:
diff changeset
3539 _block->set_end(goto_callee);
a61af66fc99e Initial load
duke
parents:
diff changeset
3540 callee_start_block->merge(callee_state);
a61af66fc99e Initial load
duke
parents:
diff changeset
3541
a61af66fc99e Initial load
duke
parents:
diff changeset
3542 _last = _block = callee_start_block;
a61af66fc99e Initial load
duke
parents:
diff changeset
3543
a61af66fc99e Initial load
duke
parents:
diff changeset
3544 scope_data()->add_to_work_list(callee_start_block);
a61af66fc99e Initial load
duke
parents:
diff changeset
3545 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3546
a61af66fc99e Initial load
duke
parents:
diff changeset
3547 // Clear out bytecode stream
a61af66fc99e Initial load
duke
parents:
diff changeset
3548 scope_data()->set_stream(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
3549
a61af66fc99e Initial load
duke
parents:
diff changeset
3550 // Ready to resume parsing in callee (either in the same block we
a61af66fc99e Initial load
duke
parents:
diff changeset
3551 // were in before or in the callee's start block)
a61af66fc99e Initial load
duke
parents:
diff changeset
3552 iterate_all_blocks(callee_start_block == NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
3553
a61af66fc99e Initial load
duke
parents:
diff changeset
3554 // If we bailed out during parsing, return immediately (this is bad news)
a61af66fc99e Initial load
duke
parents:
diff changeset
3555 if (bailed_out()) return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3556
a61af66fc99e Initial load
duke
parents:
diff changeset
3557 // iterate_all_blocks theoretically traverses in random order; in
a61af66fc99e Initial load
duke
parents:
diff changeset
3558 // practice, we have only traversed the continuation if we are
a61af66fc99e Initial load
duke
parents:
diff changeset
3559 // inlining into a subroutine
a61af66fc99e Initial load
duke
parents:
diff changeset
3560 assert(continuation_existed ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3561 !continuation()->is_set(BlockBegin::was_visited_flag),
a61af66fc99e Initial load
duke
parents:
diff changeset
3562 "continuation should not have been parsed yet if we created it");
a61af66fc99e Initial load
duke
parents:
diff changeset
3563
a61af66fc99e Initial load
duke
parents:
diff changeset
3564 // If we bailed out during parsing, return immediately (this is bad news)
a61af66fc99e Initial load
duke
parents:
diff changeset
3565 CHECK_BAILOUT_(false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3566
a61af66fc99e Initial load
duke
parents:
diff changeset
3567 // At this point we are almost ready to return and resume parsing of
a61af66fc99e Initial load
duke
parents:
diff changeset
3568 // the caller back in the GraphBuilder. The only thing we want to do
a61af66fc99e Initial load
duke
parents:
diff changeset
3569 // first is an optimization: during parsing of the callee we
a61af66fc99e Initial load
duke
parents:
diff changeset
3570 // generated at least one Goto to the continuation block. If we
a61af66fc99e Initial load
duke
parents:
diff changeset
3571 // generated exactly one, and if the inlined method spanned exactly
a61af66fc99e Initial load
duke
parents:
diff changeset
3572 // one block (and we didn't have to Goto its entry), then we snip
a61af66fc99e Initial load
duke
parents:
diff changeset
3573 // off the Goto to the continuation, allowing control to fall
a61af66fc99e Initial load
duke
parents:
diff changeset
3574 // through back into the caller block and effectively performing
a61af66fc99e Initial load
duke
parents:
diff changeset
3575 // block merging. This allows load elimination and CSE to take place
a61af66fc99e Initial load
duke
parents:
diff changeset
3576 // across multiple callee scopes if they are relatively simple, and
a61af66fc99e Initial load
duke
parents:
diff changeset
3577 // is currently essential to making inlining profitable.
a61af66fc99e Initial load
duke
parents:
diff changeset
3578 if ( num_returns() == 1
a61af66fc99e Initial load
duke
parents:
diff changeset
3579 && block() == orig_block
a61af66fc99e Initial load
duke
parents:
diff changeset
3580 && block() == inline_cleanup_block()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3581 _last = inline_cleanup_return_prev();
a61af66fc99e Initial load
duke
parents:
diff changeset
3582 _state = inline_cleanup_state()->pop_scope();
a61af66fc99e Initial load
duke
parents:
diff changeset
3583 } else if (continuation_preds == cont->number_of_preds()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3584 // Inlining caused that the instructions after the invoke in the
a61af66fc99e Initial load
duke
parents:
diff changeset
3585 // caller are not reachable any more. So skip filling this block
a61af66fc99e Initial load
duke
parents:
diff changeset
3586 // with instructions!
a61af66fc99e Initial load
duke
parents:
diff changeset
3587 assert (cont == continuation(), "");
a61af66fc99e Initial load
duke
parents:
diff changeset
3588 assert(_last && _last->as_BlockEnd(), "");
a61af66fc99e Initial load
duke
parents:
diff changeset
3589 _skip_block = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3590 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3591 // Resume parsing in continuation block unless it was already parsed.
a61af66fc99e Initial load
duke
parents:
diff changeset
3592 // Note that if we don't change _last here, iteration in
a61af66fc99e Initial load
duke
parents:
diff changeset
3593 // iterate_bytecodes_for_block will stop when we return.
a61af66fc99e Initial load
duke
parents:
diff changeset
3594 if (!continuation()->is_set(BlockBegin::was_visited_flag)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3595 // add continuation to work list instead of parsing it immediately
a61af66fc99e Initial load
duke
parents:
diff changeset
3596 assert(_last && _last->as_BlockEnd(), "");
a61af66fc99e Initial load
duke
parents:
diff changeset
3597 scope_data()->parent()->add_to_work_list(continuation());
a61af66fc99e Initial load
duke
parents:
diff changeset
3598 _skip_block = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3599 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3600 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3601
a61af66fc99e Initial load
duke
parents:
diff changeset
3602 // Fill the exception handler for synchronized methods with instructions
a61af66fc99e Initial load
duke
parents:
diff changeset
3603 if (callee->is_synchronized() && sync_handler->state() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3604 fill_sync_handler(lock, sync_handler);
a61af66fc99e Initial load
duke
parents:
diff changeset
3605 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3606 pop_scope();
a61af66fc99e Initial load
duke
parents:
diff changeset
3607 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3608
a61af66fc99e Initial load
duke
parents:
diff changeset
3609 compilation()->notice_inlined_method(callee);
a61af66fc99e Initial load
duke
parents:
diff changeset
3610
a61af66fc99e Initial load
duke
parents:
diff changeset
3611 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3612 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3613
a61af66fc99e Initial load
duke
parents:
diff changeset
3614
a61af66fc99e Initial load
duke
parents:
diff changeset
3615 void GraphBuilder::inline_bailout(const char* msg) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3616 assert(msg != NULL, "inline bailout msg must exist");
a61af66fc99e Initial load
duke
parents:
diff changeset
3617 _inline_bailout_msg = msg;
a61af66fc99e Initial load
duke
parents:
diff changeset
3618 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3619
a61af66fc99e Initial load
duke
parents:
diff changeset
3620
a61af66fc99e Initial load
duke
parents:
diff changeset
3621 void GraphBuilder::clear_inline_bailout() {
a61af66fc99e Initial load
duke
parents:
diff changeset
3622 _inline_bailout_msg = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
3623 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3624
a61af66fc99e Initial load
duke
parents:
diff changeset
3625
a61af66fc99e Initial load
duke
parents:
diff changeset
3626 void GraphBuilder::push_root_scope(IRScope* scope, BlockList* bci2block, BlockBegin* start) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3627 ScopeData* data = new ScopeData(NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
3628 data->set_scope(scope);
a61af66fc99e Initial load
duke
parents:
diff changeset
3629 data->set_bci2block(bci2block);
a61af66fc99e Initial load
duke
parents:
diff changeset
3630 _scope_data = data;
a61af66fc99e Initial load
duke
parents:
diff changeset
3631 _block = start;
a61af66fc99e Initial load
duke
parents:
diff changeset
3632 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3633
a61af66fc99e Initial load
duke
parents:
diff changeset
3634
a61af66fc99e Initial load
duke
parents:
diff changeset
3635 void GraphBuilder::push_scope(ciMethod* callee, BlockBegin* continuation) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3636 IRScope* callee_scope = new IRScope(compilation(), scope(), bci(), callee, -1, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3637 scope()->add_callee(callee_scope);
a61af66fc99e Initial load
duke
parents:
diff changeset
3638
a61af66fc99e Initial load
duke
parents:
diff changeset
3639 BlockListBuilder blb(compilation(), callee_scope, -1);
a61af66fc99e Initial load
duke
parents:
diff changeset
3640 CHECK_BAILOUT();
a61af66fc99e Initial load
duke
parents:
diff changeset
3641
a61af66fc99e Initial load
duke
parents:
diff changeset
3642 if (!blb.bci2block()->at(0)->is_set(BlockBegin::parser_loop_header_flag)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3643 // this scope can be inlined directly into the caller so remove
a61af66fc99e Initial load
duke
parents:
diff changeset
3644 // the block at bci 0.
a61af66fc99e Initial load
duke
parents:
diff changeset
3645 blb.bci2block()->at_put(0, NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
3646 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3647
a61af66fc99e Initial load
duke
parents:
diff changeset
3648 callee_scope->set_caller_state(state());
a61af66fc99e Initial load
duke
parents:
diff changeset
3649 set_state(state()->push_scope(callee_scope));
a61af66fc99e Initial load
duke
parents:
diff changeset
3650
a61af66fc99e Initial load
duke
parents:
diff changeset
3651 ScopeData* data = new ScopeData(scope_data());
a61af66fc99e Initial load
duke
parents:
diff changeset
3652 data->set_scope(callee_scope);
a61af66fc99e Initial load
duke
parents:
diff changeset
3653 data->set_bci2block(blb.bci2block());
a61af66fc99e Initial load
duke
parents:
diff changeset
3654 data->set_continuation(continuation);
a61af66fc99e Initial load
duke
parents:
diff changeset
3655 _scope_data = data;
a61af66fc99e Initial load
duke
parents:
diff changeset
3656 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3657
a61af66fc99e Initial load
duke
parents:
diff changeset
3658
a61af66fc99e Initial load
duke
parents:
diff changeset
3659 void GraphBuilder::push_scope_for_jsr(BlockBegin* jsr_continuation, int jsr_dest_bci) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3660 ScopeData* data = new ScopeData(scope_data());
a61af66fc99e Initial load
duke
parents:
diff changeset
3661 data->set_parsing_jsr();
a61af66fc99e Initial load
duke
parents:
diff changeset
3662 data->set_jsr_entry_bci(jsr_dest_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
3663 data->set_jsr_return_address_local(-1);
a61af66fc99e Initial load
duke
parents:
diff changeset
3664 // Must clone bci2block list as we will be mutating it in order to
a61af66fc99e Initial load
duke
parents:
diff changeset
3665 // properly clone all blocks in jsr region as well as exception
a61af66fc99e Initial load
duke
parents:
diff changeset
3666 // handlers containing rets
a61af66fc99e Initial load
duke
parents:
diff changeset
3667 BlockList* new_bci2block = new BlockList(bci2block()->length());
a61af66fc99e Initial load
duke
parents:
diff changeset
3668 new_bci2block->push_all(bci2block());
a61af66fc99e Initial load
duke
parents:
diff changeset
3669 data->set_bci2block(new_bci2block);
a61af66fc99e Initial load
duke
parents:
diff changeset
3670 data->set_scope(scope());
a61af66fc99e Initial load
duke
parents:
diff changeset
3671 data->setup_jsr_xhandlers();
a61af66fc99e Initial load
duke
parents:
diff changeset
3672 data->set_continuation(continuation());
a61af66fc99e Initial load
duke
parents:
diff changeset
3673 if (continuation() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3674 assert(continuation_state() != NULL, "");
a61af66fc99e Initial load
duke
parents:
diff changeset
3675 data->set_continuation_state(continuation_state()->copy());
a61af66fc99e Initial load
duke
parents:
diff changeset
3676 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3677 data->set_jsr_continuation(jsr_continuation);
a61af66fc99e Initial load
duke
parents:
diff changeset
3678 _scope_data = data;
a61af66fc99e Initial load
duke
parents:
diff changeset
3679 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3680
a61af66fc99e Initial load
duke
parents:
diff changeset
3681
a61af66fc99e Initial load
duke
parents:
diff changeset
3682 void GraphBuilder::pop_scope() {
a61af66fc99e Initial load
duke
parents:
diff changeset
3683 int number_of_locks = scope()->number_of_locks();
a61af66fc99e Initial load
duke
parents:
diff changeset
3684 _scope_data = scope_data()->parent();
a61af66fc99e Initial load
duke
parents:
diff changeset
3685 // accumulate minimum number of monitor slots to be reserved
a61af66fc99e Initial load
duke
parents:
diff changeset
3686 scope()->set_min_number_of_locks(number_of_locks);
a61af66fc99e Initial load
duke
parents:
diff changeset
3687 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3688
a61af66fc99e Initial load
duke
parents:
diff changeset
3689
a61af66fc99e Initial load
duke
parents:
diff changeset
3690 void GraphBuilder::pop_scope_for_jsr() {
a61af66fc99e Initial load
duke
parents:
diff changeset
3691 _scope_data = scope_data()->parent();
a61af66fc99e Initial load
duke
parents:
diff changeset
3692 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3693
a61af66fc99e Initial load
duke
parents:
diff changeset
3694 bool GraphBuilder::append_unsafe_get_obj(ciMethod* callee, BasicType t, bool is_volatile) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3695 if (InlineUnsafeOps) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3696 Values* args = state()->pop_arguments(callee->arg_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
3697 null_check(args->at(0));
a61af66fc99e Initial load
duke
parents:
diff changeset
3698 Instruction* offset = args->at(2);
a61af66fc99e Initial load
duke
parents:
diff changeset
3699 #ifndef _LP64
a61af66fc99e Initial load
duke
parents:
diff changeset
3700 offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
a61af66fc99e Initial load
duke
parents:
diff changeset
3701 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3702 Instruction* op = append(new UnsafeGetObject(t, args->at(1), offset, is_volatile));
a61af66fc99e Initial load
duke
parents:
diff changeset
3703 push(op->type(), op);
a61af66fc99e Initial load
duke
parents:
diff changeset
3704 compilation()->set_has_unsafe_access(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3705 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3706 return InlineUnsafeOps;
a61af66fc99e Initial load
duke
parents:
diff changeset
3707 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3708
a61af66fc99e Initial load
duke
parents:
diff changeset
3709
a61af66fc99e Initial load
duke
parents:
diff changeset
3710 bool GraphBuilder::append_unsafe_put_obj(ciMethod* callee, BasicType t, bool is_volatile) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3711 if (InlineUnsafeOps) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3712 Values* args = state()->pop_arguments(callee->arg_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
3713 null_check(args->at(0));
a61af66fc99e Initial load
duke
parents:
diff changeset
3714 Instruction* offset = args->at(2);
a61af66fc99e Initial load
duke
parents:
diff changeset
3715 #ifndef _LP64
a61af66fc99e Initial load
duke
parents:
diff changeset
3716 offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
a61af66fc99e Initial load
duke
parents:
diff changeset
3717 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3718 Instruction* op = append(new UnsafePutObject(t, args->at(1), offset, args->at(3), is_volatile));
a61af66fc99e Initial load
duke
parents:
diff changeset
3719 compilation()->set_has_unsafe_access(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3720 kill_all();
a61af66fc99e Initial load
duke
parents:
diff changeset
3721 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3722 return InlineUnsafeOps;
a61af66fc99e Initial load
duke
parents:
diff changeset
3723 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3724
a61af66fc99e Initial load
duke
parents:
diff changeset
3725
a61af66fc99e Initial load
duke
parents:
diff changeset
3726 bool GraphBuilder::append_unsafe_get_raw(ciMethod* callee, BasicType t) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3727 if (InlineUnsafeOps) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3728 Values* args = state()->pop_arguments(callee->arg_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
3729 null_check(args->at(0));
a61af66fc99e Initial load
duke
parents:
diff changeset
3730 Instruction* op = append(new UnsafeGetRaw(t, args->at(1), false));
a61af66fc99e Initial load
duke
parents:
diff changeset
3731 push(op->type(), op);
a61af66fc99e Initial load
duke
parents:
diff changeset
3732 compilation()->set_has_unsafe_access(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3733 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3734 return InlineUnsafeOps;
a61af66fc99e Initial load
duke
parents:
diff changeset
3735 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3736
a61af66fc99e Initial load
duke
parents:
diff changeset
3737
a61af66fc99e Initial load
duke
parents:
diff changeset
3738 bool GraphBuilder::append_unsafe_put_raw(ciMethod* callee, BasicType t) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3739 if (InlineUnsafeOps) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3740 Values* args = state()->pop_arguments(callee->arg_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
3741 null_check(args->at(0));
a61af66fc99e Initial load
duke
parents:
diff changeset
3742 Instruction* op = append(new UnsafePutRaw(t, args->at(1), args->at(2)));
a61af66fc99e Initial load
duke
parents:
diff changeset
3743 compilation()->set_has_unsafe_access(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3744 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3745 return InlineUnsafeOps;
a61af66fc99e Initial load
duke
parents:
diff changeset
3746 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3747
a61af66fc99e Initial load
duke
parents:
diff changeset
3748
a61af66fc99e Initial load
duke
parents:
diff changeset
3749 bool GraphBuilder::append_unsafe_prefetch(ciMethod* callee, bool is_static, bool is_store) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3750 if (InlineUnsafeOps) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3751 Values* args = state()->pop_arguments(callee->arg_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
3752 int obj_arg_index = 1; // Assume non-static case
a61af66fc99e Initial load
duke
parents:
diff changeset
3753 if (is_static) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3754 obj_arg_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3755 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3756 null_check(args->at(0));
a61af66fc99e Initial load
duke
parents:
diff changeset
3757 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3758 Instruction* offset = args->at(obj_arg_index + 1);
a61af66fc99e Initial load
duke
parents:
diff changeset
3759 #ifndef _LP64
a61af66fc99e Initial load
duke
parents:
diff changeset
3760 offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
a61af66fc99e Initial load
duke
parents:
diff changeset
3761 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3762 Instruction* op = is_store ? append(new UnsafePrefetchWrite(args->at(obj_arg_index), offset))
a61af66fc99e Initial load
duke
parents:
diff changeset
3763 : append(new UnsafePrefetchRead (args->at(obj_arg_index), offset));
a61af66fc99e Initial load
duke
parents:
diff changeset
3764 compilation()->set_has_unsafe_access(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3765 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3766 return InlineUnsafeOps;
a61af66fc99e Initial load
duke
parents:
diff changeset
3767 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3768
a61af66fc99e Initial load
duke
parents:
diff changeset
3769
a61af66fc99e Initial load
duke
parents:
diff changeset
3770 void GraphBuilder::append_unsafe_CAS(ciMethod* callee) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3771 ValueType* result_type = as_ValueType(callee->return_type());
a61af66fc99e Initial load
duke
parents:
diff changeset
3772 assert(result_type->is_int(), "int result");
a61af66fc99e Initial load
duke
parents:
diff changeset
3773 Values* args = state()->pop_arguments(callee->arg_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
3774
a61af66fc99e Initial load
duke
parents:
diff changeset
3775 // Pop off some args to speically handle, then push back
a61af66fc99e Initial load
duke
parents:
diff changeset
3776 Value newval = args->pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
3777 Value cmpval = args->pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
3778 Value offset = args->pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
3779 Value src = args->pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
3780 Value unsafe_obj = args->pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
3781
a61af66fc99e Initial load
duke
parents:
diff changeset
3782 // Separately handle the unsafe arg. It is not needed for code
a61af66fc99e Initial load
duke
parents:
diff changeset
3783 // generation, but must be null checked
a61af66fc99e Initial load
duke
parents:
diff changeset
3784 null_check(unsafe_obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
3785
a61af66fc99e Initial load
duke
parents:
diff changeset
3786 #ifndef _LP64
a61af66fc99e Initial load
duke
parents:
diff changeset
3787 offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
a61af66fc99e Initial load
duke
parents:
diff changeset
3788 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3789
a61af66fc99e Initial load
duke
parents:
diff changeset
3790 args->push(src);
a61af66fc99e Initial load
duke
parents:
diff changeset
3791 args->push(offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
3792 args->push(cmpval);
a61af66fc99e Initial load
duke
parents:
diff changeset
3793 args->push(newval);
a61af66fc99e Initial load
duke
parents:
diff changeset
3794
a61af66fc99e Initial load
duke
parents:
diff changeset
3795 // An unsafe CAS can alias with other field accesses, but we don't
a61af66fc99e Initial load
duke
parents:
diff changeset
3796 // know which ones so mark the state as no preserved. This will
a61af66fc99e Initial load
duke
parents:
diff changeset
3797 // cause CSE to invalidate memory across it.
a61af66fc99e Initial load
duke
parents:
diff changeset
3798 bool preserves_state = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3799 Intrinsic* result = new Intrinsic(result_type, callee->intrinsic_id(), args, false, lock_stack(), preserves_state);
a61af66fc99e Initial load
duke
parents:
diff changeset
3800 append_split(result);
a61af66fc99e Initial load
duke
parents:
diff changeset
3801 push(result_type, result);
a61af66fc99e Initial load
duke
parents:
diff changeset
3802 compilation()->set_has_unsafe_access(true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3803 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3804
a61af66fc99e Initial load
duke
parents:
diff changeset
3805
a61af66fc99e Initial load
duke
parents:
diff changeset
3806 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
3807 void GraphBuilder::print_inline_result(ciMethod* callee, bool res) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3808 const char sync_char = callee->is_synchronized() ? 's' : ' ';
a61af66fc99e Initial load
duke
parents:
diff changeset
3809 const char exception_char = callee->has_exception_handlers() ? '!' : ' ';
a61af66fc99e Initial load
duke
parents:
diff changeset
3810 const char monitors_char = callee->has_monitor_bytecodes() ? 'm' : ' ';
a61af66fc99e Initial load
duke
parents:
diff changeset
3811 tty->print(" %c%c%c ", sync_char, exception_char, monitors_char);
a61af66fc99e Initial load
duke
parents:
diff changeset
3812 for (int i = 0; i < scope()->level(); i++) tty->print(" ");
a61af66fc99e Initial load
duke
parents:
diff changeset
3813 if (res) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3814 tty->print(" ");
a61af66fc99e Initial load
duke
parents:
diff changeset
3815 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3816 tty->print("- ");
a61af66fc99e Initial load
duke
parents:
diff changeset
3817 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3818 tty->print("@ %d ", bci());
a61af66fc99e Initial load
duke
parents:
diff changeset
3819 callee->print_short_name();
a61af66fc99e Initial load
duke
parents:
diff changeset
3820 tty->print(" (%d bytes)", callee->code_size());
a61af66fc99e Initial load
duke
parents:
diff changeset
3821 if (_inline_bailout_msg) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3822 tty->print(" %s", _inline_bailout_msg);
a61af66fc99e Initial load
duke
parents:
diff changeset
3823 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3824 tty->cr();
a61af66fc99e Initial load
duke
parents:
diff changeset
3825
a61af66fc99e Initial load
duke
parents:
diff changeset
3826 if (res && CIPrintMethodCodes) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3827 callee->print_codes();
a61af66fc99e Initial load
duke
parents:
diff changeset
3828 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3829 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3830
a61af66fc99e Initial load
duke
parents:
diff changeset
3831
a61af66fc99e Initial load
duke
parents:
diff changeset
3832 void GraphBuilder::print_stats() {
a61af66fc99e Initial load
duke
parents:
diff changeset
3833 vmap()->print();
a61af66fc99e Initial load
duke
parents:
diff changeset
3834 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3835 #endif // PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
3836
a61af66fc99e Initial load
duke
parents:
diff changeset
3837 void GraphBuilder::profile_call(Value recv, ciKlass* known_holder) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3838 append(new ProfileCall(method(), bci(), recv, known_holder));
a61af66fc99e Initial load
duke
parents:
diff changeset
3839 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3840
1783
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3841 void GraphBuilder::profile_invocation(ciMethod* callee, ValueStack* state, int bci) {
d5d065957597 6953144: Tiered compilation
iveresov
parents: 1602
diff changeset
3842 append(new ProfileInvoke(callee, state, bci));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3843 }