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annotate src/share/vm/opto/escape.cpp @ 10405:f2110083203d

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8005849: JEP 167: Event-Based JVM Tracing Reviewed-by: acorn, coleenp, sla Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author sla
date Mon, 10 Jun 2013 11:30:51 +0200
parents 83dcb116fdb1
children b800986664f4
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1 /*
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2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "ci/bcEscapeAnalyzer.hpp"
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27 #include "compiler/compileLog.hpp"
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28 #include "libadt/vectset.hpp"
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29 #include "memory/allocation.hpp"
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30 #include "opto/c2compiler.hpp"
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31 #include "opto/callnode.hpp"
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32 #include "opto/cfgnode.hpp"
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33 #include "opto/compile.hpp"
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34 #include "opto/escape.hpp"
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35 #include "opto/phaseX.hpp"
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36 #include "opto/rootnode.hpp"
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37
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38 ConnectionGraph::ConnectionGraph(Compile * C, PhaseIterGVN *igvn) :
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39 _nodes(C->comp_arena(), C->unique(), C->unique(), NULL),
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40 _collecting(true),
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41 _verify(false),
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42 _compile(C),
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43 _igvn(igvn),
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44 _node_map(C->comp_arena()) {
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45 // Add unknown java object.
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46 add_java_object(C->top(), PointsToNode::GlobalEscape);
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47 phantom_obj = ptnode_adr(C->top()->_idx)->as_JavaObject();
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48 // Add ConP(#NULL) and ConN(#NULL) nodes.
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49 Node* oop_null = igvn->zerocon(T_OBJECT);
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50 assert(oop_null->_idx < nodes_size(), "should be created already");
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51 add_java_object(oop_null, PointsToNode::NoEscape);
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52 null_obj = ptnode_adr(oop_null->_idx)->as_JavaObject();
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53 if (UseCompressedOops) {
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54 Node* noop_null = igvn->zerocon(T_NARROWOOP);
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55 assert(noop_null->_idx < nodes_size(), "should be created already");
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56 map_ideal_node(noop_null, null_obj);
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57 }
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58 _pcmp_neq = NULL; // Should be initialized
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59 _pcmp_eq = NULL;
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60 }
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61
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62 bool ConnectionGraph::has_candidates(Compile *C) {
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63 // EA brings benefits only when the code has allocations and/or locks which
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64 // are represented by ideal Macro nodes.
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65 int cnt = C->macro_count();
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66 for (int i = 0; i < cnt; i++) {
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67 Node *n = C->macro_node(i);
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68 if (n->is_Allocate())
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69 return true;
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70 if (n->is_Lock()) {
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71 Node* obj = n->as_Lock()->obj_node()->uncast();
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72 if (!(obj->is_Parm() || obj->is_Con()))
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73 return true;
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74 }
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75 if (n->is_CallStaticJava() &&
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76 n->as_CallStaticJava()->is_boxing_method()) {
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77 return true;
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78 }
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79 }
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80 return false;
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81 }
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82
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83 void ConnectionGraph::do_analysis(Compile *C, PhaseIterGVN *igvn) {
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84 Compile::TracePhase t2("escapeAnalysis", &Phase::_t_escapeAnalysis, true);
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85 ResourceMark rm;
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86
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87 // Add ConP#NULL and ConN#NULL nodes before ConnectionGraph construction
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88 // to create space for them in ConnectionGraph::_nodes[].
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89 Node* oop_null = igvn->zerocon(T_OBJECT);
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90 Node* noop_null = igvn->zerocon(T_NARROWOOP);
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91 ConnectionGraph* congraph = new(C->comp_arena()) ConnectionGraph(C, igvn);
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92 // Perform escape analysis
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93 if (congraph->compute_escape()) {
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94 // There are non escaping objects.
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95 C->set_congraph(congraph);
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96 }
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97 // Cleanup.
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98 if (oop_null->outcnt() == 0)
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99 igvn->hash_delete(oop_null);
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100 if (noop_null->outcnt() == 0)
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101 igvn->hash_delete(noop_null);
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102 }
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103
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104 bool ConnectionGraph::compute_escape() {
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105 Compile* C = _compile;
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106 PhaseGVN* igvn = _igvn;
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107
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108 // Worklists used by EA.
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109 Unique_Node_List delayed_worklist;
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110 GrowableArray<Node*> alloc_worklist;
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111 GrowableArray<Node*> ptr_cmp_worklist;
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112 GrowableArray<Node*> storestore_worklist;
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113 GrowableArray<PointsToNode*> ptnodes_worklist;
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114 GrowableArray<JavaObjectNode*> java_objects_worklist;
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115 GrowableArray<JavaObjectNode*> non_escaped_worklist;
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116 GrowableArray<FieldNode*> oop_fields_worklist;
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117 DEBUG_ONLY( GrowableArray<Node*> addp_worklist; )
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118
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119 { Compile::TracePhase t3("connectionGraph", &Phase::_t_connectionGraph, true);
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120
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121 // 1. Populate Connection Graph (CG) with PointsTo nodes.
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122 ideal_nodes.map(C->live_nodes(), NULL); // preallocate space
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123 // Initialize worklist
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124 if (C->root() != NULL) {
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125 ideal_nodes.push(C->root());
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126 }
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127 for( uint next = 0; next < ideal_nodes.size(); ++next ) {
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128 Node* n = ideal_nodes.at(next);
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129 // Create PointsTo nodes and add them to Connection Graph. Called
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130 // only once per ideal node since ideal_nodes is Unique_Node list.
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131 add_node_to_connection_graph(n, &delayed_worklist);
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132 PointsToNode* ptn = ptnode_adr(n->_idx);
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133 if (ptn != NULL) {
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134 ptnodes_worklist.append(ptn);
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135 if (ptn->is_JavaObject()) {
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136 java_objects_worklist.append(ptn->as_JavaObject());
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137 if ((n->is_Allocate() || n->is_CallStaticJava()) &&
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138 (ptn->escape_state() < PointsToNode::GlobalEscape)) {
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139 // Only allocations and java static calls results are interesting.
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140 non_escaped_worklist.append(ptn->as_JavaObject());
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141 }
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142 } else if (ptn->is_Field() && ptn->as_Field()->is_oop()) {
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143 oop_fields_worklist.append(ptn->as_Field());
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144 }
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145 }
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146 if (n->is_MergeMem()) {
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147 // Collect all MergeMem nodes to add memory slices for
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148 // scalar replaceable objects in split_unique_types().
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149 _mergemem_worklist.append(n->as_MergeMem());
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150 } else if (OptimizePtrCompare && n->is_Cmp() &&
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151 (n->Opcode() == Op_CmpP || n->Opcode() == Op_CmpN)) {
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152 // Collect compare pointers nodes.
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153 ptr_cmp_worklist.append(n);
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154 } else if (n->is_MemBarStoreStore()) {
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155 // Collect all MemBarStoreStore nodes so that depending on the
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156 // escape status of the associated Allocate node some of them
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157 // may be eliminated.
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158 storestore_worklist.append(n);
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159 } else if (n->is_MemBar() && (n->Opcode() == Op_MemBarRelease) &&
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160 (n->req() > MemBarNode::Precedent)) {
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161 record_for_optimizer(n);
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162 #ifdef ASSERT
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163 } else if (n->is_AddP()) {
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164 // Collect address nodes for graph verification.
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165 addp_worklist.append(n);
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166 #endif
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167 }
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168 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
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169 Node* m = n->fast_out(i); // Get user
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170 ideal_nodes.push(m);
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171 }
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172 }
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173 if (non_escaped_worklist.length() == 0) {
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174 _collecting = false;
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175 return false; // Nothing to do.
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176 }
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177 // Add final simple edges to graph.
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178 while(delayed_worklist.size() > 0) {
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179 Node* n = delayed_worklist.pop();
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180 add_final_edges(n);
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181 }
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182 int ptnodes_length = ptnodes_worklist.length();
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183
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184 #ifdef ASSERT
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185 if (VerifyConnectionGraph) {
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186 // Verify that no new simple edges could be created and all
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187 // local vars has edges.
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188 _verify = true;
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189 for (int next = 0; next < ptnodes_length; ++next) {
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190 PointsToNode* ptn = ptnodes_worklist.at(next);
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191 add_final_edges(ptn->ideal_node());
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192 if (ptn->is_LocalVar() && ptn->edge_count() == 0) {
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193 ptn->dump();
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194 assert(ptn->as_LocalVar()->edge_count() > 0, "sanity");
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195 }
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196 }
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197 _verify = false;
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198 }
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199 #endif
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200
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201 // 2. Finish Graph construction by propagating references to all
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202 // java objects through graph.
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203 if (!complete_connection_graph(ptnodes_worklist, non_escaped_worklist,
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204 java_objects_worklist, oop_fields_worklist)) {
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205 // All objects escaped or hit time or iterations limits.
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206 _collecting = false;
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207 return false;
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208 }
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209
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210 // 3. Adjust scalar_replaceable state of nonescaping objects and push
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211 // scalar replaceable allocations on alloc_worklist for processing
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212 // in split_unique_types().
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213 int non_escaped_length = non_escaped_worklist.length();
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214 for (int next = 0; next < non_escaped_length; next++) {
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215 JavaObjectNode* ptn = non_escaped_worklist.at(next);
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216 bool noescape = (ptn->escape_state() == PointsToNode::NoEscape);
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217 Node* n = ptn->ideal_node();
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218 if (n->is_Allocate()) {
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219 n->as_Allocate()->_is_non_escaping = noescape;
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220 }
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221 if (n->is_CallStaticJava()) {
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222 n->as_CallStaticJava()->_is_non_escaping = noescape;
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223 }
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224 if (noescape && ptn->scalar_replaceable()) {
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225 adjust_scalar_replaceable_state(ptn);
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226 if (ptn->scalar_replaceable()) {
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227 alloc_worklist.append(ptn->ideal_node());
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228 }
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229 }
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230 }
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231
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232 #ifdef ASSERT
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233 if (VerifyConnectionGraph) {
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234 // Verify that graph is complete - no new edges could be added or needed.
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235 verify_connection_graph(ptnodes_worklist, non_escaped_worklist,
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236 java_objects_worklist, addp_worklist);
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237 }
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238 assert(C->unique() == nodes_size(), "no new ideal nodes should be added during ConnectionGraph build");
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239 assert(null_obj->escape_state() == PointsToNode::NoEscape &&
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240 null_obj->edge_count() == 0 &&
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diff changeset
241 !null_obj->arraycopy_src() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
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242 !null_obj->arraycopy_dst(), "sanity");
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diff changeset
243 #endif
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244
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245 _collecting = false;
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246
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247 } // TracePhase t3("connectionGraph")
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248
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249 // 4. Optimize ideal graph based on EA information.
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250 bool has_non_escaping_obj = (non_escaped_worklist.length() > 0);
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251 if (has_non_escaping_obj) {
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252 optimize_ideal_graph(ptr_cmp_worklist, storestore_worklist);
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253 }
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254
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255 #ifndef PRODUCT
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256 if (PrintEscapeAnalysis) {
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257 dump(ptnodes_worklist); // Dump ConnectionGraph
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258 }
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259 #endif
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260
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261 bool has_scalar_replaceable_candidates = (alloc_worklist.length() > 0);
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262 #ifdef ASSERT
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263 if (VerifyConnectionGraph) {
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264 int alloc_length = alloc_worklist.length();
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265 for (int next = 0; next < alloc_length; ++next) {
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266 Node* n = alloc_worklist.at(next);
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267 PointsToNode* ptn = ptnode_adr(n->_idx);
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268 assert(ptn->escape_state() == PointsToNode::NoEscape && ptn->scalar_replaceable(), "sanity");
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269 }
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270 }
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271 #endif
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272
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273 // 5. Separate memory graph for scalar replaceable allcations.
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274 if (has_scalar_replaceable_candidates &&
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275 C->AliasLevel() >= 3 && EliminateAllocations) {
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276 // Now use the escape information to create unique types for
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277 // scalar replaceable objects.
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278 split_unique_types(alloc_worklist);
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279 if (C->failing()) return false;
10405
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing
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280 C->print_method(PHASE_AFTER_EA, 2);
5948
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281
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282 #ifdef ASSERT
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283 } else if (Verbose && (PrintEscapeAnalysis || PrintEliminateAllocations)) {
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284 tty->print("=== No allocations eliminated for ");
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285 C->method()->print_short_name();
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diff changeset
286 if(!EliminateAllocations) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
287 tty->print(" since EliminateAllocations is off ===");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
288 } else if(!has_scalar_replaceable_candidates) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
289 tty->print(" since there are no scalar replaceable candidates ===");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
290 } else if(C->AliasLevel() < 3) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
291 tty->print(" since AliasLevel < 3 ===");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
292 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
293 tty->cr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
294 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
295 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
296 return has_non_escaping_obj;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
297 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
298
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
299 // Utility function for nodes that load an object
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
300 void ConnectionGraph::add_objload_to_connection_graph(Node *n, Unique_Node_List *delayed_worklist) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
301 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
302 // ThreadLocal has RawPtr type.
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
303 const Type* t = _igvn->type(n);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
304 if (t->make_ptr() != NULL) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
305 Node* adr = n->in(MemNode::Address);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
306 #ifdef ASSERT
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
307 if (!adr->is_AddP()) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
308 assert(_igvn->type(adr)->isa_rawptr(), "sanity");
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
309 } else {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
310 assert((ptnode_adr(adr->_idx) == NULL ||
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
311 ptnode_adr(adr->_idx)->as_Field()->is_oop()), "sanity");
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
312 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
313 #endif
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
314 add_local_var_and_edge(n, PointsToNode::NoEscape,
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
315 adr, delayed_worklist);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
316 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
317 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
318
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
319 // Populate Connection Graph with PointsTo nodes and create simple
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
320 // connection graph edges.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
321 void ConnectionGraph::add_node_to_connection_graph(Node *n, Unique_Node_List *delayed_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
322 assert(!_verify, "this method sould not be called for verification");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
323 PhaseGVN* igvn = _igvn;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
324 uint n_idx = n->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
325 PointsToNode* n_ptn = ptnode_adr(n_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
326 if (n_ptn != NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
327 return; // No need to redefine PointsTo node during first iteration.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
328
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
329 if (n->is_Call()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
330 // Arguments to allocation and locking don't escape.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
331 if (n->is_AbstractLock()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
332 // Put Lock and Unlock nodes on IGVN worklist to process them during
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
333 // first IGVN optimization when escape information is still available.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
334 record_for_optimizer(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
335 } else if (n->is_Allocate()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
336 add_call_node(n->as_Call());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
337 record_for_optimizer(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
338 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
339 if (n->is_CallStaticJava()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
340 const char* name = n->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
341 if (name != NULL && strcmp(name, "uncommon_trap") == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
342 return; // Skip uncommon traps
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
343 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
344 // Don't mark as processed since call's arguments have to be processed.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
345 delayed_worklist->push(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
346 // Check if a call returns an object.
10278
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
347 if ((n->as_Call()->returns_pointer() &&
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
348 n->as_Call()->proj_out(TypeFunc::Parms) != NULL) ||
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
349 (n->is_CallStaticJava() &&
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
350 n->as_CallStaticJava()->is_boxing_method())) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
351 add_call_node(n->as_Call());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
352 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
353 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
354 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
355 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
356 // Put this check here to process call arguments since some call nodes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
357 // point to phantom_obj.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
358 if (n_ptn == phantom_obj || n_ptn == null_obj)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
359 return; // Skip predefined nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
360
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
361 int opcode = n->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
362 switch (opcode) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
363 case Op_AddP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
364 Node* base = get_addp_base(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
365 PointsToNode* ptn_base = ptnode_adr(base->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
366 // Field nodes are created for all field types. They are used in
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
367 // adjust_scalar_replaceable_state() and split_unique_types().
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
368 // Note, non-oop fields will have only base edges in Connection
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
369 // Graph because such fields are not used for oop loads and stores.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
370 int offset = address_offset(n, igvn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
371 add_field(n, PointsToNode::NoEscape, offset);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
372 if (ptn_base == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
373 delayed_worklist->push(n); // Process it later.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
374 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
375 n_ptn = ptnode_adr(n_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
376 add_base(n_ptn->as_Field(), ptn_base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
377 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
378 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
379 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
380 case Op_CastX2P: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
381 map_ideal_node(n, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
382 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
383 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
384 case Op_CastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
385 case Op_CheckCastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
386 case Op_EncodeP:
6848
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
387 case Op_DecodeN:
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
388 case Op_EncodePKlass:
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
389 case Op_DecodeNKlass: {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
390 add_local_var_and_edge(n, PointsToNode::NoEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
391 n->in(1), delayed_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
392 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
393 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
394 case Op_CMoveP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
395 add_local_var(n, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
396 // Do not add edges during first iteration because some could be
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
397 // not defined yet.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
398 delayed_worklist->push(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
399 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
400 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
401 case Op_ConP:
6848
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
402 case Op_ConN:
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
403 case Op_ConNKlass: {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
404 // assume all oop constants globally escape except for null
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
405 PointsToNode::EscapeState es;
10278
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
406 const Type* t = igvn->type(n);
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
407 if (t == TypePtr::NULL_PTR || t == TypeNarrowOop::NULL_PTR) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
408 es = PointsToNode::NoEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
409 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
410 es = PointsToNode::GlobalEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
411 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
412 add_java_object(n, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
413 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
414 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
415 case Op_CreateEx: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
416 // assume that all exception objects globally escape
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
417 add_java_object(n, PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
418 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
419 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
420 case Op_LoadKlass:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
421 case Op_LoadNKlass: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
422 // Unknown class is loaded
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
423 map_ideal_node(n, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
424 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
425 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
426 case Op_LoadP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
427 case Op_LoadN:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
428 case Op_LoadPLocked: {
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
429 add_objload_to_connection_graph(n, delayed_worklist);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
430 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
431 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
432 case Op_Parm: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
433 map_ideal_node(n, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
434 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
435 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
436 case Op_PartialSubtypeCheck: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
437 // Produces Null or notNull and is used in only in CmpP so
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
438 // phantom_obj could be used.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
439 map_ideal_node(n, phantom_obj); // Result is unknown
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
440 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
441 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
442 case Op_Phi: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
443 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
444 // ThreadLocal has RawPtr type.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
445 const Type* t = n->as_Phi()->type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
446 if (t->make_ptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
447 add_local_var(n, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
448 // Do not add edges during first iteration because some could be
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
449 // not defined yet.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
450 delayed_worklist->push(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
451 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
452 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
453 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
454 case Op_Proj: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
455 // we are only interested in the oop result projection from a call
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
456 if (n->as_Proj()->_con == TypeFunc::Parms && n->in(0)->is_Call() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
457 n->in(0)->as_Call()->returns_pointer()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
458 add_local_var_and_edge(n, PointsToNode::NoEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
459 n->in(0), delayed_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
460 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
461 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
462 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
463 case Op_Rethrow: // Exception object escapes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
464 case Op_Return: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
465 if (n->req() > TypeFunc::Parms &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
466 igvn->type(n->in(TypeFunc::Parms))->isa_oopptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
467 // Treat Return value as LocalVar with GlobalEscape escape state.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
468 add_local_var_and_edge(n, PointsToNode::GlobalEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
469 n->in(TypeFunc::Parms), delayed_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
470 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
471 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
472 }
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
473 case Op_GetAndSetP:
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
474 case Op_GetAndSetN: {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
475 add_objload_to_connection_graph(n, delayed_worklist);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
476 // fallthrough
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
477 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
478 case Op_StoreP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
479 case Op_StoreN:
6848
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
480 case Op_StoreNKlass:
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
481 case Op_StorePConditional:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
482 case Op_CompareAndSwapP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
483 case Op_CompareAndSwapN: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
484 Node* adr = n->in(MemNode::Address);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
485 const Type *adr_type = igvn->type(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
486 adr_type = adr_type->make_ptr();
10279
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
487 if (adr_type == NULL) {
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
488 break; // skip dead nodes
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
489 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
490 if (adr_type->isa_oopptr() ||
6848
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
491 (opcode == Op_StoreP || opcode == Op_StoreN || opcode == Op_StoreNKlass) &&
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
492 (adr_type == TypeRawPtr::NOTNULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
493 adr->in(AddPNode::Address)->is_Proj() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
494 adr->in(AddPNode::Address)->in(0)->is_Allocate())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
495 delayed_worklist->push(n); // Process it later.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
496 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
497 assert(adr->is_AddP(), "expecting an AddP");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
498 if (adr_type == TypeRawPtr::NOTNULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
499 // Verify a raw address for a store captured by Initialize node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
500 int offs = (int)igvn->find_intptr_t_con(adr->in(AddPNode::Offset), Type::OffsetBot);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
501 assert(offs != Type::OffsetBot, "offset must be a constant");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
502 }
5954
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
503 #endif
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
504 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
505 // Ignore copy the displaced header to the BoxNode (OSR compilation).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
506 if (adr->is_BoxLock())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
507 break;
5954
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
508 // Stored value escapes in unsafe access.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
509 if ((opcode == Op_StoreP) && (adr_type == TypeRawPtr::BOTTOM)) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
510 // Pointer stores in G1 barriers looks like unsafe access.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
511 // Ignore such stores to be able scalar replace non-escaping
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
512 // allocations.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
513 if (UseG1GC && adr->is_AddP()) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
514 Node* base = get_addp_base(adr);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
515 if (base->Opcode() == Op_LoadP &&
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
516 base->in(MemNode::Address)->is_AddP()) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
517 adr = base->in(MemNode::Address);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
518 Node* tls = get_addp_base(adr);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
519 if (tls->Opcode() == Op_ThreadLocal) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
520 int offs = (int)igvn->find_intptr_t_con(adr->in(AddPNode::Offset), Type::OffsetBot);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
521 if (offs == in_bytes(JavaThread::satb_mark_queue_offset() +
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
522 PtrQueue::byte_offset_of_buf())) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
523 break; // G1 pre barier previous oop value store.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
524 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
525 if (offs == in_bytes(JavaThread::dirty_card_queue_offset() +
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
526 PtrQueue::byte_offset_of_buf())) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
527 break; // G1 post barier card address store.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
528 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
529 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
530 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
531 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
532 delayed_worklist->push(n); // Process unsafe access later.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
533 break;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
534 }
5954
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
535 #ifdef ASSERT
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
536 n->dump(1);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
537 assert(false, "not unsafe or G1 barrier raw StoreP");
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
538 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
539 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
540 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
541 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
542 case Op_AryEq:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
543 case Op_StrComp:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
544 case Op_StrEquals:
7637
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
545 case Op_StrIndexOf:
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
546 case Op_EncodeISOArray: {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
547 add_local_var(n, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
548 delayed_worklist->push(n); // Process it later.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
549 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
550 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
551 case Op_ThreadLocal: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
552 add_java_object(n, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
553 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
554 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
555 default:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
556 ; // Do nothing for nodes not related to EA.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
557 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
558 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
559 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
560
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
561 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
562 #define ELSE_FAIL(name) \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
563 /* Should not be called for not pointer type. */ \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
564 n->dump(1); \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
565 assert(false, name); \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
566 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
567 #else
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
568 #define ELSE_FAIL(name) \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
569 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
570 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
571
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
572 // Add final simple edges to graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
573 void ConnectionGraph::add_final_edges(Node *n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
574 PointsToNode* n_ptn = ptnode_adr(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
575 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
576 if (_verify && n_ptn->is_JavaObject())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
577 return; // This method does not change graph for JavaObject.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
578 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
579
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
580 if (n->is_Call()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
581 process_call_arguments(n->as_Call());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
582 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
583 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
584 assert(n->is_Store() || n->is_LoadStore() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
585 (n_ptn != NULL) && (n_ptn->ideal_node() != NULL),
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
586 "node should be registered already");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
587 int opcode = n->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
588 switch (opcode) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
589 case Op_AddP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
590 Node* base = get_addp_base(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
591 PointsToNode* ptn_base = ptnode_adr(base->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
592 assert(ptn_base != NULL, "field's base should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
593 add_base(n_ptn->as_Field(), ptn_base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
594 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
595 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
596 case Op_CastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
597 case Op_CheckCastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
598 case Op_EncodeP:
6848
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
599 case Op_DecodeN:
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
600 case Op_EncodePKlass:
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
601 case Op_DecodeNKlass: {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
602 add_local_var_and_edge(n, PointsToNode::NoEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
603 n->in(1), NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
604 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
605 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
606 case Op_CMoveP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
607 for (uint i = CMoveNode::IfFalse; i < n->req(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
608 Node* in = n->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
609 if (in == NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
610 continue; // ignore NULL
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
611 Node* uncast_in = in->uncast();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
612 if (uncast_in->is_top() || uncast_in == n)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
613 continue; // ignore top or inputs which go back this node
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
614 PointsToNode* ptn = ptnode_adr(in->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
615 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
616 add_edge(n_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
617 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
618 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
619 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
620 case Op_LoadP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
621 case Op_LoadN:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
622 case Op_LoadPLocked: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
623 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
624 // ThreadLocal has RawPtr type.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
625 const Type* t = _igvn->type(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
626 if (t->make_ptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
627 Node* adr = n->in(MemNode::Address);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
628 add_local_var_and_edge(n, PointsToNode::NoEscape, adr, NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
629 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
630 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
631 ELSE_FAIL("Op_LoadP");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
632 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
633 case Op_Phi: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
634 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
635 // ThreadLocal has RawPtr type.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
636 const Type* t = n->as_Phi()->type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
637 if (t->make_ptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
638 for (uint i = 1; i < n->req(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
639 Node* in = n->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
640 if (in == NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
641 continue; // ignore NULL
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
642 Node* uncast_in = in->uncast();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
643 if (uncast_in->is_top() || uncast_in == n)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
644 continue; // ignore top or inputs which go back this node
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
645 PointsToNode* ptn = ptnode_adr(in->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
646 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
647 add_edge(n_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
648 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
649 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
650 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
651 ELSE_FAIL("Op_Phi");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
652 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
653 case Op_Proj: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
654 // we are only interested in the oop result projection from a call
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
655 if (n->as_Proj()->_con == TypeFunc::Parms && n->in(0)->is_Call() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
656 n->in(0)->as_Call()->returns_pointer()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
657 add_local_var_and_edge(n, PointsToNode::NoEscape, n->in(0), NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
658 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
659 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
660 ELSE_FAIL("Op_Proj");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
661 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
662 case Op_Rethrow: // Exception object escapes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
663 case Op_Return: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
664 if (n->req() > TypeFunc::Parms &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
665 _igvn->type(n->in(TypeFunc::Parms))->isa_oopptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
666 // Treat Return value as LocalVar with GlobalEscape escape state.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
667 add_local_var_and_edge(n, PointsToNode::GlobalEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
668 n->in(TypeFunc::Parms), NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
669 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
670 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
671 ELSE_FAIL("Op_Return");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
672 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
673 case Op_StoreP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
674 case Op_StoreN:
6848
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
675 case Op_StoreNKlass:
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
676 case Op_StorePConditional:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
677 case Op_CompareAndSwapP:
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
678 case Op_CompareAndSwapN:
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
679 case Op_GetAndSetP:
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
680 case Op_GetAndSetN: {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
681 Node* adr = n->in(MemNode::Address);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
682 const Type *adr_type = _igvn->type(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
683 adr_type = adr_type->make_ptr();
10279
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
684 #ifdef ASSERT
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
685 if (adr_type == NULL) {
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
686 n->dump(1);
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
687 assert(adr_type != NULL, "dead node should not be on list");
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
688 break;
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
689 }
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
690 #endif
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
691 if (opcode == Op_GetAndSetP || opcode == Op_GetAndSetN) {
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
692 add_local_var_and_edge(n, PointsToNode::NoEscape, adr, NULL);
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
693 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
694 if (adr_type->isa_oopptr() ||
6848
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
695 (opcode == Op_StoreP || opcode == Op_StoreN || opcode == Op_StoreNKlass) &&
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
696 (adr_type == TypeRawPtr::NOTNULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
697 adr->in(AddPNode::Address)->is_Proj() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
698 adr->in(AddPNode::Address)->in(0)->is_Allocate())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
699 // Point Address to Value
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
700 PointsToNode* adr_ptn = ptnode_adr(adr->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
701 assert(adr_ptn != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
702 adr_ptn->as_Field()->is_oop(), "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
703 Node *val = n->in(MemNode::ValueIn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
704 PointsToNode* ptn = ptnode_adr(val->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
705 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
706 add_edge(adr_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
707 break;
5954
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
708 } else if ((opcode == Op_StoreP) && (adr_type == TypeRawPtr::BOTTOM)) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
709 // Stored value escapes in unsafe access.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
710 Node *val = n->in(MemNode::ValueIn);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
711 PointsToNode* ptn = ptnode_adr(val->_idx);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
712 assert(ptn != NULL, "node should be registered");
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
713 ptn->set_escape_state(PointsToNode::GlobalEscape);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
714 // Add edge to object for unsafe access with offset.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
715 PointsToNode* adr_ptn = ptnode_adr(adr->_idx);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
716 assert(adr_ptn != NULL, "node should be registered");
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
717 if (adr_ptn->is_Field()) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
718 assert(adr_ptn->as_Field()->is_oop(), "should be oop field");
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
719 add_edge(adr_ptn, ptn);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
720 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
721 break;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
722 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
723 ELSE_FAIL("Op_StoreP");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
724 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
725 case Op_AryEq:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
726 case Op_StrComp:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
727 case Op_StrEquals:
7637
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
728 case Op_StrIndexOf:
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
729 case Op_EncodeISOArray: {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
730 // char[] arrays passed to string intrinsic do not escape but
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
731 // they are not scalar replaceable. Adjust escape state for them.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
732 // Start from in(2) edge since in(1) is memory edge.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
733 for (uint i = 2; i < n->req(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
734 Node* adr = n->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
735 const Type* at = _igvn->type(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
736 if (!adr->is_top() && at->isa_ptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
737 assert(at == Type::TOP || at == TypePtr::NULL_PTR ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
738 at->isa_ptr() != NULL, "expecting a pointer");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
739 if (adr->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
740 adr = get_addp_base(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
741 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
742 PointsToNode* ptn = ptnode_adr(adr->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
743 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
744 add_edge(n_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
745 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
746 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
747 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
748 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
749 default: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
750 // This method should be called only for EA specific nodes which may
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
751 // miss some edges when they were created.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
752 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
753 n->dump(1);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
754 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
755 guarantee(false, "unknown node");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
756 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
757 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
758 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
759 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
760
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
761 void ConnectionGraph::add_call_node(CallNode* call) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
762 assert(call->returns_pointer(), "only for call which returns pointer");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
763 uint call_idx = call->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
764 if (call->is_Allocate()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
765 Node* k = call->in(AllocateNode::KlassNode);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
766 const TypeKlassPtr* kt = k->bottom_type()->isa_klassptr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
767 assert(kt != NULL, "TypeKlassPtr required.");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
768 ciKlass* cik = kt->klass();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
769 PointsToNode::EscapeState es = PointsToNode::NoEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
770 bool scalar_replaceable = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
771 if (call->is_AllocateArray()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
772 if (!cik->is_array_klass()) { // StressReflectiveCode
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
773 es = PointsToNode::GlobalEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
774 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
775 int length = call->in(AllocateNode::ALength)->find_int_con(-1);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
776 if (length < 0 || length > EliminateAllocationArraySizeLimit) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
777 // Not scalar replaceable if the length is not constant or too big.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
778 scalar_replaceable = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
779 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
780 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
781 } else { // Allocate instance
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
782 if (cik->is_subclass_of(_compile->env()->Thread_klass()) ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
783 !cik->is_instance_klass() || // StressReflectiveCode
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
784 cik->as_instance_klass()->has_finalizer()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
785 es = PointsToNode::GlobalEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
786 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
787 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
788 add_java_object(call, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
789 PointsToNode* ptn = ptnode_adr(call_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
790 if (!scalar_replaceable && ptn->scalar_replaceable()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
791 ptn->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
792 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
793 } else if (call->is_CallStaticJava()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
794 // Call nodes could be different types:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
795 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
796 // 1. CallDynamicJavaNode (what happened during call is unknown):
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
797 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
798 // - mapped to GlobalEscape JavaObject node if oop is returned;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
799 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
800 // - all oop arguments are escaping globally;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
801 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
802 // 2. CallStaticJavaNode (execute bytecode analysis if possible):
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
803 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
804 // - the same as CallDynamicJavaNode if can't do bytecode analysis;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
805 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
806 // - mapped to GlobalEscape JavaObject node if unknown oop is returned;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
807 // - mapped to NoEscape JavaObject node if non-escaping object allocated
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
808 // during call is returned;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
809 // - mapped to ArgEscape LocalVar node pointed to object arguments
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
810 // which are returned and does not escape during call;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
811 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
812 // - oop arguments escaping status is defined by bytecode analysis;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
813 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
814 // For a static call, we know exactly what method is being called.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
815 // Use bytecode estimator to record whether the call's return value escapes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
816 ciMethod* meth = call->as_CallJava()->method();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
817 if (meth == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
818 const char* name = call->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
819 assert(strncmp(name, "_multianewarray", 15) == 0, "TODO: add failed case check");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
820 // Returns a newly allocated unescaped object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
821 add_java_object(call, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
822 ptnode_adr(call_idx)->set_scalar_replaceable(false);
10278
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
823 } else if (meth->is_boxing_method()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
824 // Returns boxing object
10281
1da5d70655e9 8014286: failed java/lang/Math/DivModTests.java after 6934604 changes
kvn
parents: 10279
diff changeset
825 PointsToNode::EscapeState es;
1da5d70655e9 8014286: failed java/lang/Math/DivModTests.java after 6934604 changes
kvn
parents: 10279
diff changeset
826 vmIntrinsics::ID intr = meth->intrinsic_id();
1da5d70655e9 8014286: failed java/lang/Math/DivModTests.java after 6934604 changes
kvn
parents: 10279
diff changeset
827 if (intr == vmIntrinsics::_floatValue || intr == vmIntrinsics::_doubleValue) {
1da5d70655e9 8014286: failed java/lang/Math/DivModTests.java after 6934604 changes
kvn
parents: 10279
diff changeset
828 // It does not escape if object is always allocated.
1da5d70655e9 8014286: failed java/lang/Math/DivModTests.java after 6934604 changes
kvn
parents: 10279
diff changeset
829 es = PointsToNode::NoEscape;
1da5d70655e9 8014286: failed java/lang/Math/DivModTests.java after 6934604 changes
kvn
parents: 10279
diff changeset
830 } else {
1da5d70655e9 8014286: failed java/lang/Math/DivModTests.java after 6934604 changes
kvn
parents: 10279
diff changeset
831 // It escapes globally if object could be loaded from cache.
1da5d70655e9 8014286: failed java/lang/Math/DivModTests.java after 6934604 changes
kvn
parents: 10279
diff changeset
832 es = PointsToNode::GlobalEscape;
1da5d70655e9 8014286: failed java/lang/Math/DivModTests.java after 6934604 changes
kvn
parents: 10279
diff changeset
833 }
1da5d70655e9 8014286: failed java/lang/Math/DivModTests.java after 6934604 changes
kvn
parents: 10279
diff changeset
834 add_java_object(call, es);
4122
cc81b9c09bbb 7112478: after 7105605 JRuby bench_define_method_methods.rb fails with NPE
kvn
parents: 4115
diff changeset
835 } else {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
836 BCEscapeAnalyzer* call_analyzer = meth->get_bcea();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
837 call_analyzer->copy_dependencies(_compile->dependencies());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
838 if (call_analyzer->is_return_allocated()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
839 // Returns a newly allocated unescaped object, simply
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
840 // update dependency information.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
841 // Mark it as NoEscape so that objects referenced by
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
842 // it's fields will be marked as NoEscape at least.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
843 add_java_object(call, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
844 ptnode_adr(call_idx)->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
845 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
846 // Determine whether any arguments are returned.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
847 const TypeTuple* d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
848 bool ret_arg = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
849 for (uint i = TypeFunc::Parms; i < d->cnt(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
850 if (d->field_at(i)->isa_ptr() != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
851 call_analyzer->is_arg_returned(i - TypeFunc::Parms)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
852 ret_arg = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
853 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
854 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
855 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
856 if (ret_arg) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
857 add_local_var(call, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
858 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
859 // Returns unknown object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
860 map_ideal_node(call, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
861 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
862 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
863 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
864 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
865 // An other type of call, assume the worst case:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
866 // returned value is unknown and globally escapes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
867 assert(call->Opcode() == Op_CallDynamicJava, "add failed case check");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
868 map_ideal_node(call, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
869 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
870 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
871
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
872 void ConnectionGraph::process_call_arguments(CallNode *call) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
873 bool is_arraycopy = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
874 switch (call->Opcode()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
875 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
876 case Op_Allocate:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
877 case Op_AllocateArray:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
878 case Op_Lock:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
879 case Op_Unlock:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
880 assert(false, "should be done already");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
881 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
882 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
883 case Op_CallLeafNoFP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
884 is_arraycopy = (call->as_CallLeaf()->_name != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
885 strstr(call->as_CallLeaf()->_name, "arraycopy") != 0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
886 // fall through
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
887 case Op_CallLeaf: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
888 // Stub calls, objects do not escape but they are not scale replaceable.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
889 // Adjust escape state for outgoing arguments.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
890 const TypeTuple * d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
891 bool src_has_oops = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
892 for (uint i = TypeFunc::Parms; i < d->cnt(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
893 const Type* at = d->field_at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
894 Node *arg = call->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
895 const Type *aat = _igvn->type(arg);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
896 if (arg->is_top() || !at->isa_ptr() || !aat->isa_ptr())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
897 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
898 if (arg->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
899 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
900 // The inline_native_clone() case when the arraycopy stub is called
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
901 // after the allocation before Initialize and CheckCastPP nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
902 // Or normal arraycopy for object arrays case.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
903 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
904 // Set AddP's base (Allocate) as not scalar replaceable since
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
905 // pointer to the base (with offset) is passed as argument.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
906 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
907 arg = get_addp_base(arg);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
908 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
909 PointsToNode* arg_ptn = ptnode_adr(arg->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
910 assert(arg_ptn != NULL, "should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
911 PointsToNode::EscapeState arg_esc = arg_ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
912 if (is_arraycopy || arg_esc < PointsToNode::ArgEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
913 assert(aat == Type::TOP || aat == TypePtr::NULL_PTR ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
914 aat->isa_ptr() != NULL, "expecting an Ptr");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
915 bool arg_has_oops = aat->isa_oopptr() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
916 (aat->isa_oopptr()->klass() == NULL || aat->isa_instptr() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
917 (aat->isa_aryptr() && aat->isa_aryptr()->klass()->is_obj_array_klass()));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
918 if (i == TypeFunc::Parms) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
919 src_has_oops = arg_has_oops;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
920 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
921 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
922 // src or dst could be j.l.Object when other is basic type array:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
923 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
924 // arraycopy(char[],0,Object*,0,size);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
925 // arraycopy(Object*,0,char[],0,size);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
926 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
927 // Don't add edges in such cases.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
928 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
929 bool arg_is_arraycopy_dest = src_has_oops && is_arraycopy &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
930 arg_has_oops && (i > TypeFunc::Parms);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
931 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
932 if (!(is_arraycopy ||
6894
a3ecd773a7b9 7184394: add intrinsics to use AES instructions
kvn
parents: 6848
diff changeset
933 (call->as_CallLeaf()->_name != NULL &&
a3ecd773a7b9 7184394: add intrinsics to use AES instructions
kvn
parents: 6848
diff changeset
934 (strcmp(call->as_CallLeaf()->_name, "g1_wb_pre") == 0 ||
a3ecd773a7b9 7184394: add intrinsics to use AES instructions
kvn
parents: 6848
diff changeset
935 strcmp(call->as_CallLeaf()->_name, "g1_wb_post") == 0 ||
a3ecd773a7b9 7184394: add intrinsics to use AES instructions
kvn
parents: 6848
diff changeset
936 strcmp(call->as_CallLeaf()->_name, "aescrypt_encryptBlock") == 0 ||
a3ecd773a7b9 7184394: add intrinsics to use AES instructions
kvn
parents: 6848
diff changeset
937 strcmp(call->as_CallLeaf()->_name, "aescrypt_decryptBlock") == 0 ||
a3ecd773a7b9 7184394: add intrinsics to use AES instructions
kvn
parents: 6848
diff changeset
938 strcmp(call->as_CallLeaf()->_name, "cipherBlockChaining_encryptAESCrypt") == 0 ||
a3ecd773a7b9 7184394: add intrinsics to use AES instructions
kvn
parents: 6848
diff changeset
939 strcmp(call->as_CallLeaf()->_name, "cipherBlockChaining_decryptAESCrypt") == 0)
a3ecd773a7b9 7184394: add intrinsics to use AES instructions
kvn
parents: 6848
diff changeset
940 ))) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
941 call->dump();
6894
a3ecd773a7b9 7184394: add intrinsics to use AES instructions
kvn
parents: 6848
diff changeset
942 fatal(err_msg_res("EA unexpected CallLeaf %s", call->as_CallLeaf()->_name));
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
943 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
944 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
945 // Always process arraycopy's destination object since
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
946 // we need to add all possible edges to references in
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
947 // source object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
948 if (arg_esc >= PointsToNode::ArgEscape &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
949 !arg_is_arraycopy_dest) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
950 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
951 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
952 set_escape_state(arg_ptn, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
953 if (arg_is_arraycopy_dest) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
954 Node* src = call->in(TypeFunc::Parms);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
955 if (src->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
956 src = get_addp_base(src);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
957 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
958 PointsToNode* src_ptn = ptnode_adr(src->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
959 assert(src_ptn != NULL, "should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
960 if (arg_ptn != src_ptn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
961 // Special arraycopy edge:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
962 // A destination object's field can't have the source object
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
963 // as base since objects escape states are not related.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
964 // Only escape state of destination object's fields affects
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
965 // escape state of fields in source object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
966 add_arraycopy(call, PointsToNode::ArgEscape, src_ptn, arg_ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
967 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
968 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
969 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
970 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
971 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
972 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
973 case Op_CallStaticJava: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
974 // For a static call, we know exactly what method is being called.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
975 // Use bytecode estimator to record the call's escape affects
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
976 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
977 const char* name = call->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
978 assert((name == NULL || strcmp(name, "uncommon_trap") != 0), "normal calls only");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
979 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
980 ciMethod* meth = call->as_CallJava()->method();
10278
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
981 if ((meth != NULL) && meth->is_boxing_method()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
982 break; // Boxing methods do not modify any oops.
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
983 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
984 BCEscapeAnalyzer* call_analyzer = (meth !=NULL) ? meth->get_bcea() : NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
985 // fall-through if not a Java method or no analyzer information
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
986 if (call_analyzer != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
987 PointsToNode* call_ptn = ptnode_adr(call->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
988 const TypeTuple* d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
989 for (uint i = TypeFunc::Parms; i < d->cnt(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
990 const Type* at = d->field_at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
991 int k = i - TypeFunc::Parms;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
992 Node* arg = call->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
993 PointsToNode* arg_ptn = ptnode_adr(arg->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
994 if (at->isa_ptr() != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
995 call_analyzer->is_arg_returned(k)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
996 // The call returns arguments.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
997 if (call_ptn != NULL) { // Is call's result used?
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
998 assert(call_ptn->is_LocalVar(), "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
999 assert(arg_ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1000 add_edge(call_ptn, arg_ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1001 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1002 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1003 if (at->isa_oopptr() != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1004 arg_ptn->escape_state() < PointsToNode::GlobalEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1005 if (!call_analyzer->is_arg_stack(k)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1006 // The argument global escapes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1007 set_escape_state(arg_ptn, PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1008 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1009 set_escape_state(arg_ptn, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1010 if (!call_analyzer->is_arg_local(k)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1011 // The argument itself doesn't escape, but any fields might
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1012 set_fields_escape_state(arg_ptn, PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1013 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1014 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1015 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1016 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1017 if (call_ptn != NULL && call_ptn->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1018 // The call returns arguments.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1019 assert(call_ptn->edge_count() > 0, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1020 if (!call_analyzer->is_return_local()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1021 // Returns also unknown object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1022 add_edge(call_ptn, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1023 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1024 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1025 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1026 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1027 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1028 default: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1029 // Fall-through here if not a Java method or no analyzer information
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1030 // or some other type of call, assume the worst case: all arguments
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1031 // globally escape.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1032 const TypeTuple* d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1033 for (uint i = TypeFunc::Parms; i < d->cnt(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1034 const Type* at = d->field_at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1035 if (at->isa_oopptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1036 Node* arg = call->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1037 if (arg->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1038 arg = get_addp_base(arg);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1039 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1040 assert(ptnode_adr(arg->_idx) != NULL, "should be defined already");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1041 set_escape_state(ptnode_adr(arg->_idx), PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1042 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1043 }
4122
cc81b9c09bbb 7112478: after 7105605 JRuby bench_define_method_methods.rb fails with NPE
kvn
parents: 4115
diff changeset
1044 }
cc81b9c09bbb 7112478: after 7105605 JRuby bench_define_method_methods.rb fails with NPE
kvn
parents: 4115
diff changeset
1045 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1046 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1047
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1048
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1049 // Finish Graph construction.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1050 bool ConnectionGraph::complete_connection_graph(
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1051 GrowableArray<PointsToNode*>& ptnodes_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1052 GrowableArray<JavaObjectNode*>& non_escaped_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1053 GrowableArray<JavaObjectNode*>& java_objects_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1054 GrowableArray<FieldNode*>& oop_fields_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1055 // Normally only 1-3 passes needed to build Connection Graph depending
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1056 // on graph complexity. Observed 8 passes in jvm2008 compiler.compiler.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1057 // Set limit to 20 to catch situation when something did go wrong and
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1058 // bailout Escape Analysis.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1059 // Also limit build time to 30 sec (60 in debug VM).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1060 #define CG_BUILD_ITER_LIMIT 20
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1061 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1062 #define CG_BUILD_TIME_LIMIT 60.0
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1063 #else
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1064 #define CG_BUILD_TIME_LIMIT 30.0
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1065 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1066
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1067 // Propagate GlobalEscape and ArgEscape escape states and check that
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1068 // we still have non-escaping objects. The method pushs on _worklist
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1069 // Field nodes which reference phantom_object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1070 if (!find_non_escaped_objects(ptnodes_worklist, non_escaped_worklist)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1071 return false; // Nothing to do.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1072 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1073 // Now propagate references to all JavaObject nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1074 int java_objects_length = java_objects_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1075 elapsedTimer time;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1076 int new_edges = 1;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1077 int iterations = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1078 do {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1079 while ((new_edges > 0) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1080 (iterations++ < CG_BUILD_ITER_LIMIT) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1081 (time.seconds() < CG_BUILD_TIME_LIMIT)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1082 time.start();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1083 new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1084 // Propagate references to phantom_object for nodes pushed on _worklist
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1085 // by find_non_escaped_objects() and find_field_value().
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1086 new_edges += add_java_object_edges(phantom_obj, false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1087 for (int next = 0; next < java_objects_length; ++next) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1088 JavaObjectNode* ptn = java_objects_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1089 new_edges += add_java_object_edges(ptn, true);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1090 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1091 if (new_edges > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1092 // Update escape states on each iteration if graph was updated.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1093 if (!find_non_escaped_objects(ptnodes_worklist, non_escaped_worklist)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1094 return false; // Nothing to do.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1095 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1096 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1097 time.stop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1098 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1099 if ((iterations < CG_BUILD_ITER_LIMIT) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1100 (time.seconds() < CG_BUILD_TIME_LIMIT)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1101 time.start();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1102 // Find fields which have unknown value.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1103 int fields_length = oop_fields_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1104 for (int next = 0; next < fields_length; next++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1105 FieldNode* field = oop_fields_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1106 if (field->edge_count() == 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1107 new_edges += find_field_value(field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1108 // This code may added new edges to phantom_object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1109 // Need an other cycle to propagate references to phantom_object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1110 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1111 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1112 time.stop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1113 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1114 new_edges = 0; // Bailout
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1115 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1116 } while (new_edges > 0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1117
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1118 // Bailout if passed limits.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1119 if ((iterations >= CG_BUILD_ITER_LIMIT) ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1120 (time.seconds() >= CG_BUILD_TIME_LIMIT)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1121 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1122 if (C->log() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1123 C->log()->begin_elem("connectionGraph_bailout reason='reached ");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1124 C->log()->text("%s", (iterations >= CG_BUILD_ITER_LIMIT) ? "iterations" : "time");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1125 C->log()->end_elem(" limit'");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1126 }
6895
006174cfe979 7163534: VM could crashes assert(false) failed: infinite EA connection graph build
kvn
parents: 6894
diff changeset
1127 assert(ExitEscapeAnalysisOnTimeout, err_msg_res("infinite EA connection graph build (%f sec, %d iterations) with %d nodes and worklist size %d",
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1128 time.seconds(), iterations, nodes_size(), ptnodes_worklist.length()));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1129 // Possible infinite build_connection_graph loop,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1130 // bailout (no changes to ideal graph were made).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1131 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1132 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1133 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1134 if (Verbose && PrintEscapeAnalysis) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1135 tty->print_cr("EA: %d iterations to build connection graph with %d nodes and worklist size %d",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1136 iterations, nodes_size(), ptnodes_worklist.length());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1137 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1138 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1139
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1140 #undef CG_BUILD_ITER_LIMIT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1141 #undef CG_BUILD_TIME_LIMIT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1142
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1143 // Find fields initialized by NULL for non-escaping Allocations.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1144 int non_escaped_length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1145 for (int next = 0; next < non_escaped_length; next++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1146 JavaObjectNode* ptn = non_escaped_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1147 PointsToNode::EscapeState es = ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1148 assert(es <= PointsToNode::ArgEscape, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1149 if (es == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1150 if (find_init_values(ptn, null_obj, _igvn) > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1151 // Adding references to NULL object does not change escape states
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1152 // since it does not escape. Also no fields are added to NULL object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1153 add_java_object_edges(null_obj, false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1154 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1155 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1156 Node* n = ptn->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1157 if (n->is_Allocate()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1158 // The object allocated by this Allocate node will never be
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1159 // seen by an other thread. Mark it so that when it is
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1160 // expanded no MemBarStoreStore is added.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1161 InitializeNode* ini = n->as_Allocate()->initialization();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1162 if (ini != NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1163 ini->set_does_not_escape();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1164 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1165 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1166 return true; // Finished graph construction.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1167 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1168
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1169 // Propagate GlobalEscape and ArgEscape escape states to all nodes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1170 // and check that we still have non-escaping java objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1171 bool ConnectionGraph::find_non_escaped_objects(GrowableArray<PointsToNode*>& ptnodes_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1172 GrowableArray<JavaObjectNode*>& non_escaped_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1173 GrowableArray<PointsToNode*> escape_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1174 // First, put all nodes with GlobalEscape and ArgEscape states on worklist.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1175 int ptnodes_length = ptnodes_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1176 for (int next = 0; next < ptnodes_length; ++next) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1177 PointsToNode* ptn = ptnodes_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1178 if (ptn->escape_state() >= PointsToNode::ArgEscape ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1179 ptn->fields_escape_state() >= PointsToNode::ArgEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1180 escape_worklist.push(ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1181 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1182 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1183 // Set escape states to referenced nodes (edges list).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1184 while (escape_worklist.length() > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1185 PointsToNode* ptn = escape_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1186 PointsToNode::EscapeState es = ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1187 PointsToNode::EscapeState field_es = ptn->fields_escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1188 if (ptn->is_Field() && ptn->as_Field()->is_oop() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1189 es >= PointsToNode::ArgEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1190 // GlobalEscape or ArgEscape state of field means it has unknown value.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1191 if (add_edge(ptn, phantom_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1192 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1193 add_field_uses_to_worklist(ptn->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1194 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1195 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1196 for (EdgeIterator i(ptn); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1197 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1198 if (e->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1199 assert(ptn->arraycopy_dst(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1200 // Propagate only fields escape state through arraycopy edge.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1201 if (e->fields_escape_state() < field_es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1202 set_fields_escape_state(e, field_es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1203 escape_worklist.push(e);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1204 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1205 } else if (es >= field_es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1206 // fields_escape_state is also set to 'es' if it is less than 'es'.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1207 if (e->escape_state() < es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1208 set_escape_state(e, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1209 escape_worklist.push(e);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1210 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1211 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1212 // Propagate field escape state.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1213 bool es_changed = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1214 if (e->fields_escape_state() < field_es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1215 set_fields_escape_state(e, field_es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1216 es_changed = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1217 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1218 if ((e->escape_state() < field_es) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1219 e->is_Field() && ptn->is_JavaObject() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1220 e->as_Field()->is_oop()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1221 // Change escape state of referenced fileds.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1222 set_escape_state(e, field_es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1223 es_changed = true;;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1224 } else if (e->escape_state() < es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1225 set_escape_state(e, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1226 es_changed = true;;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1227 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1228 if (es_changed) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1229 escape_worklist.push(e);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1230 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1231 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1232 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1233 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1234 // Remove escaped objects from non_escaped list.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1235 for (int next = non_escaped_worklist.length()-1; next >= 0 ; --next) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1236 JavaObjectNode* ptn = non_escaped_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1237 if (ptn->escape_state() >= PointsToNode::GlobalEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1238 non_escaped_worklist.delete_at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1239 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1240 if (ptn->escape_state() == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1241 // Find fields in non-escaped allocations which have unknown value.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1242 find_init_values(ptn, phantom_obj, NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1243 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1244 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1245 return (non_escaped_worklist.length() > 0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1246 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1247
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1248 // Add all references to JavaObject node by walking over all uses.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1249 int ConnectionGraph::add_java_object_edges(JavaObjectNode* jobj, bool populate_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1250 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1251 if (populate_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1252 // Populate _worklist by uses of jobj's uses.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1253 for (UseIterator i(jobj); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1254 PointsToNode* use = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1255 if (use->is_Arraycopy())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1256 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1257 add_uses_to_worklist(use);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1258 if (use->is_Field() && use->as_Field()->is_oop()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1259 // Put on worklist all field's uses (loads) and
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1260 // related field nodes (same base and offset).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1261 add_field_uses_to_worklist(use->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1262 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1263 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1264 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1265 while(_worklist.length() > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1266 PointsToNode* use = _worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1267 if (PointsToNode::is_base_use(use)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1268 // Add reference from jobj to field and from field to jobj (field's base).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1269 use = PointsToNode::get_use_node(use)->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1270 if (add_base(use->as_Field(), jobj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1271 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1272 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1273 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1274 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1275 assert(!use->is_JavaObject(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1276 if (use->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1277 if (jobj == null_obj) // NULL object does not have field edges
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1278 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1279 // Added edge from Arraycopy node to arraycopy's source java object
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1280 if (add_edge(use, jobj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1281 jobj->set_arraycopy_src();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1282 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1283 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1284 // and stop here.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1285 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1286 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1287 if (!add_edge(use, jobj))
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1288 continue; // No new edge added, there was such edge already.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1289 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1290 if (use->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1291 add_uses_to_worklist(use);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1292 if (use->arraycopy_dst()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1293 for (EdgeIterator i(use); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1294 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1295 if (e->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1296 if (jobj == null_obj) // NULL object does not have field edges
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1297 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1298 // Add edge from arraycopy's destination java object to Arraycopy node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1299 if (add_edge(jobj, e)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1300 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1301 jobj->set_arraycopy_dst();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1302 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1303 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1304 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1305 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1306 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1307 // Added new edge to stored in field values.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1308 // Put on worklist all field's uses (loads) and
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1309 // related field nodes (same base and offset).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1310 add_field_uses_to_worklist(use->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1311 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1312 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1313 return new_edges;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1314 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1315
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1316 // Put on worklist all related field nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1317 void ConnectionGraph::add_field_uses_to_worklist(FieldNode* field) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1318 assert(field->is_oop(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1319 int offset = field->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1320 add_uses_to_worklist(field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1321 // Loop over all bases of this field and push on worklist Field nodes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1322 // with the same offset and base (since they may reference the same field).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1323 for (BaseIterator i(field); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1324 PointsToNode* base = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1325 add_fields_to_worklist(field, base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1326 // Check if the base was source object of arraycopy and go over arraycopy's
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1327 // destination objects since values stored to a field of source object are
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1328 // accessable by uses (loads) of fields of destination objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1329 if (base->arraycopy_src()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1330 for (UseIterator j(base); j.has_next(); j.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1331 PointsToNode* arycp = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1332 if (arycp->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1333 for (UseIterator k(arycp); k.has_next(); k.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1334 PointsToNode* abase = k.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1335 if (abase->arraycopy_dst() && abase != base) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1336 // Look for the same arracopy reference.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1337 add_fields_to_worklist(field, abase);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1338 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1339 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1340 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1341 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1342 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1343 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1344 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1345
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1346 // Put on worklist all related field nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1347 void ConnectionGraph::add_fields_to_worklist(FieldNode* field, PointsToNode* base) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1348 int offset = field->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1349 if (base->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1350 for (UseIterator j(base); j.has_next(); j.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1351 PointsToNode* f = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1352 if (PointsToNode::is_base_use(f)) { // Field
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1353 f = PointsToNode::get_use_node(f);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1354 if (f == field || !f->as_Field()->is_oop())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1355 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1356 int offs = f->as_Field()->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1357 if (offs == offset || offset == Type::OffsetBot || offs == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1358 add_to_worklist(f);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1359 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1360 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1361 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1362 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1363 assert(base->is_JavaObject(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1364 if (// Skip phantom_object since it is only used to indicate that
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1365 // this field's content globally escapes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1366 (base != phantom_obj) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1367 // NULL object node does not have fields.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1368 (base != null_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1369 for (EdgeIterator i(base); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1370 PointsToNode* f = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1371 // Skip arraycopy edge since store to destination object field
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1372 // does not update value in source object field.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1373 if (f->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1374 assert(base->arraycopy_dst(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1375 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1376 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1377 if (f == field || !f->as_Field()->is_oop())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1378 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1379 int offs = f->as_Field()->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1380 if (offs == offset || offset == Type::OffsetBot || offs == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1381 add_to_worklist(f);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1382 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1383 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1384 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1385 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1386 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1387
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1388 // Find fields which have unknown value.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1389 int ConnectionGraph::find_field_value(FieldNode* field) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1390 // Escaped fields should have init value already.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1391 assert(field->escape_state() == PointsToNode::NoEscape, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1392 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1393 for (BaseIterator i(field); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1394 PointsToNode* base = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1395 if (base->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1396 // Skip Allocate's fields which will be processed later.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1397 if (base->ideal_node()->is_Allocate())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1398 return 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1399 assert(base == null_obj, "only NULL ptr base expected here");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1400 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1401 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1402 if (add_edge(field, phantom_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1403 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1404 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1405 add_field_uses_to_worklist(field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1406 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1407 return new_edges;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1408 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1409
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1410 // Find fields initializing values for allocations.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1411 int ConnectionGraph::find_init_values(JavaObjectNode* pta, PointsToNode* init_val, PhaseTransform* phase) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1412 assert(pta->escape_state() == PointsToNode::NoEscape, "Not escaped Allocate nodes only");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1413 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1414 Node* alloc = pta->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1415 if (init_val == phantom_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1416 // Do nothing for Allocate nodes since its fields values are "known".
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1417 if (alloc->is_Allocate())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1418 return 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1419 assert(alloc->as_CallStaticJava(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1420 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1421 if (alloc->as_CallStaticJava()->method() == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1422 const char* name = alloc->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1423 assert(strncmp(name, "_multianewarray", 15) == 0, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1424 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1425 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1426 // Non-escaped allocation returned from Java or runtime call have
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1427 // unknown values in fields.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1428 for (EdgeIterator i(pta); i.has_next(); i.next()) {
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1429 PointsToNode* field = i.get();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1430 if (field->is_Field() && field->as_Field()->is_oop()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1431 if (add_edge(field, phantom_obj)) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1432 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1433 new_edges++;
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1434 add_field_uses_to_worklist(field->as_Field());
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1435 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1436 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1437 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1438 return new_edges;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1439 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1440 assert(init_val == null_obj, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1441 // Do nothing for Call nodes since its fields values are unknown.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1442 if (!alloc->is_Allocate())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1443 return 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1444
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1445 InitializeNode* ini = alloc->as_Allocate()->initialization();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1446 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1447 bool visited_bottom_offset = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1448 GrowableArray<int> offsets_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1449
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1450 // Check if an oop field's initializing value is recorded and add
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1451 // a corresponding NULL if field's value if it is not recorded.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1452 // Connection Graph does not record a default initialization by NULL
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1453 // captured by Initialize node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1454 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1455 for (EdgeIterator i(pta); i.has_next(); i.next()) {
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1456 PointsToNode* field = i.get(); // Field (AddP)
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1457 if (!field->is_Field() || !field->as_Field()->is_oop())
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1458 continue; // Not oop field
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1459 int offset = field->as_Field()->offset();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1460 if (offset == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1461 if (!visited_bottom_offset) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1462 // OffsetBot is used to reference array's element,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1463 // always add reference to NULL to all Field nodes since we don't
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1464 // known which element is referenced.
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1465 if (add_edge(field, null_obj)) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1466 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1467 new_edges++;
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1468 add_field_uses_to_worklist(field->as_Field());
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1469 visited_bottom_offset = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1470 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1471 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1472 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1473 // Check only oop fields.
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1474 const Type* adr_type = field->ideal_node()->as_AddP()->bottom_type();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1475 if (adr_type->isa_rawptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1476 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1477 // Raw pointers are used for initializing stores so skip it
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1478 // since it should be recorded already
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1479 Node* base = get_addp_base(field->ideal_node());
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1480 assert(adr_type->isa_rawptr() && base->is_Proj() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1481 (base->in(0) == alloc),"unexpected pointer type");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1482 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1483 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1484 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1485 if (!offsets_worklist.contains(offset)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1486 offsets_worklist.append(offset);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1487 Node* value = NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1488 if (ini != NULL) {
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1489 // StoreP::memory_type() == T_ADDRESS
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1490 BasicType ft = UseCompressedOops ? T_NARROWOOP : T_ADDRESS;
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1491 Node* store = ini->find_captured_store(offset, type2aelembytes(ft, true), phase);
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1492 // Make sure initializing store has the same type as this AddP.
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1493 // This AddP may reference non existing field because it is on a
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1494 // dead branch of bimorphic call which is not eliminated yet.
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1495 if (store != NULL && store->is_Store() &&
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1496 store->as_Store()->memory_type() == ft) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1497 value = store->in(MemNode::ValueIn);
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1498 #ifdef ASSERT
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1499 if (VerifyConnectionGraph) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1500 // Verify that AddP already points to all objects the value points to.
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1501 PointsToNode* val = ptnode_adr(value->_idx);
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1502 assert((val != NULL), "should be processed already");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1503 PointsToNode* missed_obj = NULL;
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1504 if (val->is_JavaObject()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1505 if (!field->points_to(val->as_JavaObject())) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1506 missed_obj = val;
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1507 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1508 } else {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1509 if (!val->is_LocalVar() || (val->edge_count() == 0)) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1510 tty->print_cr("----------init store has invalid value -----");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1511 store->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1512 val->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1513 assert(val->is_LocalVar() && (val->edge_count() > 0), "should be processed already");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1514 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1515 for (EdgeIterator j(val); j.has_next(); j.next()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1516 PointsToNode* obj = j.get();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1517 if (obj->is_JavaObject()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1518 if (!field->points_to(obj->as_JavaObject())) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1519 missed_obj = obj;
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1520 break;
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1521 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1522 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1523 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1524 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1525 if (missed_obj != NULL) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1526 tty->print_cr("----------field---------------------------------");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1527 field->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1528 tty->print_cr("----------missed referernce to object-----------");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1529 missed_obj->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1530 tty->print_cr("----------object referernced by init store -----");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1531 store->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1532 val->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1533 assert(!field->points_to(missed_obj->as_JavaObject()), "missed JavaObject reference");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1534 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1535 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1536 #endif
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1537 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1538 // There could be initializing stores which follow allocation.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1539 // For example, a volatile field store is not collected
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1540 // by Initialize node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1541 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1542 // Need to check for dependent loads to separate such stores from
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1543 // stores which follow loads. For now, add initial value NULL so
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1544 // that compare pointers optimization works correctly.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1545 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1546 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1547 if (value == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1548 // A field's initializing value was not recorded. Add NULL.
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1549 if (add_edge(field, null_obj)) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1550 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1551 new_edges++;
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1552 add_field_uses_to_worklist(field->as_Field());
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1553 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1554 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1555 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1556 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1557 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1558 return new_edges;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1559 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1560
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1561 // Adjust scalar_replaceable state after Connection Graph is built.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1562 void ConnectionGraph::adjust_scalar_replaceable_state(JavaObjectNode* jobj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1563 // Search for non-escaping objects which are not scalar replaceable
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1564 // and mark them to propagate the state to referenced objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1565
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1566 // 1. An object is not scalar replaceable if the field into which it is
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1567 // stored has unknown offset (stored into unknown element of an array).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1568 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1569 for (UseIterator i(jobj); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1570 PointsToNode* use = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1571 assert(!use->is_Arraycopy(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1572 if (use->is_Field()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1573 FieldNode* field = use->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1574 assert(field->is_oop() && field->scalar_replaceable() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1575 field->fields_escape_state() == PointsToNode::NoEscape, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1576 if (field->offset() == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1577 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1578 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1579 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1580 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1581 assert(use->is_Field() || use->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1582 // 2. An object is not scalar replaceable if it is merged with other objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1583 for (EdgeIterator j(use); j.has_next(); j.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1584 PointsToNode* ptn = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1585 if (ptn->is_JavaObject() && ptn != jobj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1586 // Mark all objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1587 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1588 ptn->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1589 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1590 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1591 if (!jobj->scalar_replaceable()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1592 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1593 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1594 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1595
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1596 for (EdgeIterator j(jobj); j.has_next(); j.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1597 // Non-escaping object node should point only to field nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1598 FieldNode* field = j.get()->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1599 int offset = field->as_Field()->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1600
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1601 // 3. An object is not scalar replaceable if it has a field with unknown
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1602 // offset (array's element is accessed in loop).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1603 if (offset == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1604 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1605 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1606 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1607 // 4. Currently an object is not scalar replaceable if a LoadStore node
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1608 // access its field since the field value is unknown after it.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1609 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1610 Node* n = field->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1611 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1612 if (n->fast_out(i)->is_LoadStore()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1613 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1614 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1615 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1616 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1617
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1618 // 5. Or the address may point to more then one object. This may produce
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1619 // the false positive result (set not scalar replaceable)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1620 // since the flow-insensitive escape analysis can't separate
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1621 // the case when stores overwrite the field's value from the case
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1622 // when stores happened on different control branches.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1623 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1624 // Note: it will disable scalar replacement in some cases:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1625 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1626 // Point p[] = new Point[1];
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1627 // p[0] = new Point(); // Will be not scalar replaced
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1628 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1629 // but it will save us from incorrect optimizations in next cases:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1630 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1631 // Point p[] = new Point[1];
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1632 // if ( x ) p[0] = new Point(); // Will be not scalar replaced
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1633 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1634 if (field->base_count() > 1) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1635 for (BaseIterator i(field); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1636 PointsToNode* base = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1637 // Don't take into account LocalVar nodes which
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1638 // may point to only one object which should be also
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1639 // this field's base by now.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1640 if (base->is_JavaObject() && base != jobj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1641 // Mark all bases.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1642 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1643 base->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1644 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1645 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1646 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1647 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1648 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1649
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1650 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1651 void ConnectionGraph::verify_connection_graph(
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1652 GrowableArray<PointsToNode*>& ptnodes_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1653 GrowableArray<JavaObjectNode*>& non_escaped_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1654 GrowableArray<JavaObjectNode*>& java_objects_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1655 GrowableArray<Node*>& addp_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1656 // Verify that graph is complete - no new edges could be added.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1657 int java_objects_length = java_objects_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1658 int non_escaped_length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1659 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1660 for (int next = 0; next < java_objects_length; ++next) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1661 JavaObjectNode* ptn = java_objects_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1662 new_edges += add_java_object_edges(ptn, true);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1663 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1664 assert(new_edges == 0, "graph was not complete");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1665 // Verify that escape state is final.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1666 int length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1667 find_non_escaped_objects(ptnodes_worklist, non_escaped_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1668 assert((non_escaped_length == non_escaped_worklist.length()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1669 (non_escaped_length == length) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1670 (_worklist.length() == 0), "escape state was not final");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1671
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1672 // Verify fields information.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1673 int addp_length = addp_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1674 for (int next = 0; next < addp_length; ++next ) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1675 Node* n = addp_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1676 FieldNode* field = ptnode_adr(n->_idx)->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1677 if (field->is_oop()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1678 // Verify that field has all bases
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1679 Node* base = get_addp_base(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1680 PointsToNode* ptn = ptnode_adr(base->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1681 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1682 assert(field->has_base(ptn->as_JavaObject()), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1683 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1684 assert(ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1685 for (EdgeIterator i(ptn); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1686 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1687 if (e->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1688 assert(field->has_base(e->as_JavaObject()), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1689 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1690 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1691 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1692 // Verify that all fields have initializing values.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1693 if (field->edge_count() == 0) {
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1694 tty->print_cr("----------field does not have references----------");
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1695 field->dump();
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1696 for (BaseIterator i(field); i.has_next(); i.next()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1697 PointsToNode* base = i.get();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1698 tty->print_cr("----------field has next base---------------------");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1699 base->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1700 if (base->is_JavaObject() && (base != phantom_obj) && (base != null_obj)) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1701 tty->print_cr("----------base has fields-------------------------");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1702 for (EdgeIterator j(base); j.has_next(); j.next()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1703 j.get()->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1704 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1705 tty->print_cr("----------base has references---------------------");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1706 for (UseIterator j(base); j.has_next(); j.next()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1707 j.get()->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1708 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1709 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1710 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1711 for (UseIterator i(field); i.has_next(); i.next()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1712 i.get()->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
1713 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1714 assert(field->edge_count() > 0, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1715 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1716 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1717 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1718 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1719 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1720
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1721 // Optimize ideal graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1722 void ConnectionGraph::optimize_ideal_graph(GrowableArray<Node*>& ptr_cmp_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1723 GrowableArray<Node*>& storestore_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1724 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1725 PhaseIterGVN* igvn = _igvn;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1726 if (EliminateLocks) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1727 // Mark locks before changing ideal graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1728 int cnt = C->macro_count();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1729 for( int i=0; i < cnt; i++ ) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1730 Node *n = C->macro_node(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1731 if (n->is_AbstractLock()) { // Lock and Unlock nodes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1732 AbstractLockNode* alock = n->as_AbstractLock();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1733 if (!alock->is_non_esc_obj()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1734 if (not_global_escape(alock->obj_node())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1735 assert(!alock->is_eliminated() || alock->is_coarsened(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1736 // The lock could be marked eliminated by lock coarsening
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1737 // code during first IGVN before EA. Replace coarsened flag
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1738 // to eliminate all associated locks/unlocks.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1739 alock->set_non_esc_obj();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1740 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1741 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1742 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1743 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1744 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1745
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1746 if (OptimizePtrCompare) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1747 // Add ConI(#CC_GT) and ConI(#CC_EQ).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1748 _pcmp_neq = igvn->makecon(TypeInt::CC_GT);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1749 _pcmp_eq = igvn->makecon(TypeInt::CC_EQ);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1750 // Optimize objects compare.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1751 while (ptr_cmp_worklist.length() != 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1752 Node *n = ptr_cmp_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1753 Node *res = optimize_ptr_compare(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1754 if (res != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1755 #ifndef PRODUCT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1756 if (PrintOptimizePtrCompare) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1757 tty->print_cr("++++ Replaced: %d %s(%d,%d) --> %s", n->_idx, (n->Opcode() == Op_CmpP ? "CmpP" : "CmpN"), n->in(1)->_idx, n->in(2)->_idx, (res == _pcmp_eq ? "EQ" : "NotEQ"));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1758 if (Verbose) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1759 n->dump(1);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1760 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1761 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1762 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1763 igvn->replace_node(n, res);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1764 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1765 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1766 // cleanup
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1767 if (_pcmp_neq->outcnt() == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1768 igvn->hash_delete(_pcmp_neq);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1769 if (_pcmp_eq->outcnt() == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1770 igvn->hash_delete(_pcmp_eq);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1771 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1772
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1773 // For MemBarStoreStore nodes added in library_call.cpp, check
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1774 // escape status of associated AllocateNode and optimize out
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1775 // MemBarStoreStore node if the allocated object never escapes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1776 while (storestore_worklist.length() != 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1777 Node *n = storestore_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1778 MemBarStoreStoreNode *storestore = n ->as_MemBarStoreStore();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1779 Node *alloc = storestore->in(MemBarNode::Precedent)->in(0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1780 assert (alloc->is_Allocate(), "storestore should point to AllocateNode");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1781 if (not_global_escape(alloc)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1782 MemBarNode* mb = MemBarNode::make(C, Op_MemBarCPUOrder, Compile::AliasIdxBot);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1783 mb->init_req(TypeFunc::Memory, storestore->in(TypeFunc::Memory));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1784 mb->init_req(TypeFunc::Control, storestore->in(TypeFunc::Control));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1785 igvn->register_new_node_with_optimizer(mb);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1786 igvn->replace_node(storestore, mb);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1787 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1788 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1789 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1790
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1791 // Optimize objects compare.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1792 Node* ConnectionGraph::optimize_ptr_compare(Node* n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1793 assert(OptimizePtrCompare, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1794 PointsToNode* ptn1 = ptnode_adr(n->in(1)->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1795 PointsToNode* ptn2 = ptnode_adr(n->in(2)->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1796 JavaObjectNode* jobj1 = unique_java_object(n->in(1));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1797 JavaObjectNode* jobj2 = unique_java_object(n->in(2));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1798 assert(ptn1->is_JavaObject() || ptn1->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1799 assert(ptn2->is_JavaObject() || ptn2->is_LocalVar(), "sanity");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1800
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1801 // Check simple cases first.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1802 if (jobj1 != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1803 if (jobj1->escape_state() == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1804 if (jobj1 == jobj2) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1805 // Comparing the same not escaping object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1806 return _pcmp_eq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1807 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1808 Node* obj = jobj1->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1809 // Comparing not escaping allocation.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1810 if ((obj->is_Allocate() || obj->is_CallStaticJava()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1811 !ptn2->points_to(jobj1)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1812 return _pcmp_neq; // This includes nullness check.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1813 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1814 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1815 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1816 if (jobj2 != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1817 if (jobj2->escape_state() == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1818 Node* obj = jobj2->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1819 // Comparing not escaping allocation.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1820 if ((obj->is_Allocate() || obj->is_CallStaticJava()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1821 !ptn1->points_to(jobj2)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1822 return _pcmp_neq; // This includes nullness check.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1823 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1824 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1825 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1826 if (jobj1 != NULL && jobj1 != phantom_obj &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1827 jobj2 != NULL && jobj2 != phantom_obj &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1828 jobj1->ideal_node()->is_Con() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1829 jobj2->ideal_node()->is_Con()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1830 // Klass or String constants compare. Need to be careful with
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1831 // compressed pointers - compare types of ConN and ConP instead of nodes.
10279
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
1832 const Type* t1 = jobj1->ideal_node()->get_ptr_type();
70120f47d403 8014189: JVM crash with SEGV in ConnectionGraph::record_for_escape_analysis()
kvn
parents: 10278
diff changeset
1833 const Type* t2 = jobj2->ideal_node()->get_ptr_type();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1834 if (t1->make_ptr() == t2->make_ptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1835 return _pcmp_eq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1836 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1837 return _pcmp_neq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1838 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1839 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1840 if (ptn1->meet(ptn2)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1841 return NULL; // Sets are not disjoint
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1842 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1843
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1844 // Sets are disjoint.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1845 bool set1_has_unknown_ptr = ptn1->points_to(phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1846 bool set2_has_unknown_ptr = ptn2->points_to(phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1847 bool set1_has_null_ptr = ptn1->points_to(null_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1848 bool set2_has_null_ptr = ptn2->points_to(null_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1849 if (set1_has_unknown_ptr && set2_has_null_ptr ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1850 set2_has_unknown_ptr && set1_has_null_ptr) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1851 // Check nullness of unknown object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1852 return NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1853 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1854
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1855 // Disjointness by itself is not sufficient since
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1856 // alias analysis is not complete for escaped objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1857 // Disjoint sets are definitely unrelated only when
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1858 // at least one set has only not escaping allocations.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1859 if (!set1_has_unknown_ptr && !set1_has_null_ptr) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1860 if (ptn1->non_escaping_allocation()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1861 return _pcmp_neq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1862 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1863 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1864 if (!set2_has_unknown_ptr && !set2_has_null_ptr) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1865 if (ptn2->non_escaping_allocation()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1866 return _pcmp_neq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1867 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1868 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1869 return NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1870 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1871
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1872 // Connection Graph constuction functions.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1873
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1874 void ConnectionGraph::add_local_var(Node *n, PointsToNode::EscapeState es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1875 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1876 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1877 assert(ptadr->is_LocalVar() && ptadr->ideal_node() == n, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1878 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1879 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1880 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1881 ptadr = new (C->comp_arena()) LocalVarNode(C, n, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1882 _nodes.at_put(n->_idx, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1883 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1884
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1885 void ConnectionGraph::add_java_object(Node *n, PointsToNode::EscapeState es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1886 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1887 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1888 assert(ptadr->is_JavaObject() && ptadr->ideal_node() == n, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1889 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1890 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1891 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1892 ptadr = new (C->comp_arena()) JavaObjectNode(C, n, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1893 _nodes.at_put(n->_idx, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1894 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1895
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1896 void ConnectionGraph::add_field(Node *n, PointsToNode::EscapeState es, int offset) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1897 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1898 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1899 assert(ptadr->is_Field() && ptadr->ideal_node() == n, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1900 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1901 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1902 bool unsafe = false;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1903 bool is_oop = is_oop_field(n, offset, &unsafe);
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1904 if (unsafe) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1905 es = PointsToNode::GlobalEscape;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1906 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1907 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1908 FieldNode* field = new (C->comp_arena()) FieldNode(C, n, es, offset, is_oop);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1909 _nodes.at_put(n->_idx, field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1910 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1911
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1912 void ConnectionGraph::add_arraycopy(Node *n, PointsToNode::EscapeState es,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1913 PointsToNode* src, PointsToNode* dst) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1914 assert(!src->is_Field() && !dst->is_Field(), "only for JavaObject and LocalVar");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1915 assert((src != null_obj) && (dst != null_obj), "not for ConP NULL");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1916 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1917 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1918 assert(ptadr->is_Arraycopy() && ptadr->ideal_node() == n, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1919 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1920 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1921 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1922 ptadr = new (C->comp_arena()) ArraycopyNode(C, n, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1923 _nodes.at_put(n->_idx, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1924 // Add edge from arraycopy node to source object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1925 (void)add_edge(ptadr, src);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1926 src->set_arraycopy_src();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1927 // Add edge from destination object to arraycopy node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1928 (void)add_edge(dst, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1929 dst->set_arraycopy_dst();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1930 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1931
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1932 bool ConnectionGraph::is_oop_field(Node* n, int offset, bool* unsafe) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1933 const Type* adr_type = n->as_AddP()->bottom_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1934 BasicType bt = T_INT;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1935 if (offset == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1936 // Check only oop fields.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1937 if (!adr_type->isa_aryptr() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1938 (adr_type->isa_aryptr()->klass() == NULL) ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1939 adr_type->isa_aryptr()->klass()->is_obj_array_klass()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1940 // OffsetBot is used to reference array's element. Ignore first AddP.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1941 if (find_second_addp(n, n->in(AddPNode::Base)) == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1942 bt = T_OBJECT;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1943 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1944 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1945 } else if (offset != oopDesc::klass_offset_in_bytes()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1946 if (adr_type->isa_instptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1947 ciField* field = _compile->alias_type(adr_type->isa_instptr())->field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1948 if (field != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1949 bt = field->layout_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1950 } else {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1951 // Check for unsafe oop field access
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1952 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1953 int opcode = n->fast_out(i)->Opcode();
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1954 if (opcode == Op_StoreP || opcode == Op_LoadP ||
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1955 opcode == Op_StoreN || opcode == Op_LoadN) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1956 bt = T_OBJECT;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1957 (*unsafe) = true;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1958 break;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1959 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1960 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1961 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1962 } else if (adr_type->isa_aryptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1963 if (offset == arrayOopDesc::length_offset_in_bytes()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1964 // Ignore array length load.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1965 } else if (find_second_addp(n, n->in(AddPNode::Base)) != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1966 // Ignore first AddP.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1967 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1968 const Type* elemtype = adr_type->isa_aryptr()->elem();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1969 bt = elemtype->array_element_basic_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1970 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1971 } else if (adr_type->isa_rawptr() || adr_type->isa_klassptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1972 // Allocation initialization, ThreadLocal field access, unsafe access
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1973 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1974 int opcode = n->fast_out(i)->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1975 if (opcode == Op_StoreP || opcode == Op_LoadP ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1976 opcode == Op_StoreN || opcode == Op_LoadN) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1977 bt = T_OBJECT;
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1978 break;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1979 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1980 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1981 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1982 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1983 return (bt == T_OBJECT || bt == T_NARROWOOP || bt == T_ARRAY);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1984 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1985
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1986 // Returns unique pointed java object or NULL.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1987 JavaObjectNode* ConnectionGraph::unique_java_object(Node *n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1988 assert(!_collecting, "should not call when contructed graph");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1989 // If the node was created after the escape computation we can't answer.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1990 uint idx = n->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1991 if (idx >= nodes_size()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1992 return NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1993 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1994 PointsToNode* ptn = ptnode_adr(idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1995 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1996 return ptn->as_JavaObject();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1997 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1998 assert(ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1999 // Check all java objects it points to.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2000 JavaObjectNode* jobj = NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2001 for (EdgeIterator i(ptn); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2002 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2003 if (e->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2004 if (jobj == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2005 jobj = e->as_JavaObject();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2006 } else if (jobj != e) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2007 return NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2008 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2009 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2010 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2011 return jobj;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2012 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2013
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2014 // Return true if this node points only to non-escaping allocations.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2015 bool PointsToNode::non_escaping_allocation() {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2016 if (is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2017 Node* n = ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2018 if (n->is_Allocate() || n->is_CallStaticJava()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2019 return (escape_state() == PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2020 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2021 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2022 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2023 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2024 assert(is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2025 // Check all java objects it points to.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2026 for (EdgeIterator i(this); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2027 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2028 if (e->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2029 Node* n = e->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2030 if ((e->escape_state() != PointsToNode::NoEscape) ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2031 !(n->is_Allocate() || n->is_CallStaticJava())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2032 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2033 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2034 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2035 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2036 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2037 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2038
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2039 // Return true if we know the node does not escape globally.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2040 bool ConnectionGraph::not_global_escape(Node *n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2041 assert(!_collecting, "should not call during graph construction");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2042 // If the node was created after the escape computation we can't answer.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2043 uint idx = n->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2044 if (idx >= nodes_size()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2045 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2046 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2047 PointsToNode* ptn = ptnode_adr(idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2048 PointsToNode::EscapeState es = ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2049 // If we have already computed a value, return it.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2050 if (es >= PointsToNode::GlobalEscape)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2051 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2052 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2053 return true; // (es < PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2054 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2055 assert(ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2056 // Check all java objects it points to.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2057 for (EdgeIterator i(ptn); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2058 if (i.get()->escape_state() >= PointsToNode::GlobalEscape)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2059 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2060 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2061 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2062 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2063
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2064
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2065 // Helper functions
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2066
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2067 // Return true if this node points to specified node or nodes it points to.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2068 bool PointsToNode::points_to(JavaObjectNode* ptn) const {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2069 if (is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2070 return (this == ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2071 }
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
2072 assert(is_LocalVar() || is_Field(), "sanity");
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2073 for (EdgeIterator i(this); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2074 if (i.get() == ptn)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2075 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2076 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2077 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2078 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2079
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2080 // Return true if one node points to an other.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2081 bool PointsToNode::meet(PointsToNode* ptn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2082 if (this == ptn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2083 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2084 } else if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2085 return this->points_to(ptn->as_JavaObject());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2086 } else if (this->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2087 return ptn->points_to(this->as_JavaObject());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2088 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2089 assert(this->is_LocalVar() && ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2090 int ptn_count = ptn->edge_count();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2091 for (EdgeIterator i(this); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2092 PointsToNode* this_e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2093 for (int j = 0; j < ptn_count; j++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2094 if (this_e == ptn->edge(j))
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2095 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2096 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2097 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2098 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2099 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2100
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2101 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2102 // Return true if bases point to this java object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2103 bool FieldNode::has_base(JavaObjectNode* jobj) const {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2104 for (BaseIterator i(this); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2105 if (i.get() == jobj)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2106 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2107 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2108 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2109 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2110 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2111
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2112 int ConnectionGraph::address_offset(Node* adr, PhaseTransform *phase) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2113 const Type *adr_type = phase->type(adr);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2114 if (adr->is_AddP() && adr_type->isa_oopptr() == NULL &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2115 adr->in(AddPNode::Address)->is_Proj() &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2116 adr->in(AddPNode::Address)->in(0)->is_Allocate()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2117 // We are computing a raw address for a store captured by an Initialize
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2118 // compute an appropriate address type. AddP cases #3 and #5 (see below).
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2119 int offs = (int)phase->find_intptr_t_con(adr->in(AddPNode::Offset), Type::OffsetBot);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2120 assert(offs != Type::OffsetBot ||
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2121 adr->in(AddPNode::Address)->in(0)->is_AllocateArray(),
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2122 "offset must be a constant or it is initialization of array");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2123 return offs;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2124 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2125 const TypePtr *t_ptr = adr_type->isa_ptr();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2126 assert(t_ptr != NULL, "must be a pointer type");
a61af66fc99e Initial load
duke
parents:
diff changeset
2127 return t_ptr->offset();
a61af66fc99e Initial load
duke
parents:
diff changeset
2128 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2129
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2130 Node* ConnectionGraph::get_addp_base(Node *addp) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2131 assert(addp->is_AddP(), "must be AddP");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2132 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2133 // AddP cases for Base and Address inputs:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2134 // case #1. Direct object's field reference:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2135 // Allocate
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2136 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2137 // Proj #5 ( oop result )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2138 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2139 // CheckCastPP (cast to instance type)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2140 // | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2141 // AddP ( base == address )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2142 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2143 // case #2. Indirect object's field reference:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2144 // Phi
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2145 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2146 // CastPP (cast to instance type)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2147 // | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2148 // AddP ( base == address )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2149 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2150 // case #3. Raw object's field reference for Initialize node:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2151 // Allocate
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2152 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2153 // Proj #5 ( oop result )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2154 // top |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2155 // \ |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2156 // AddP ( base == top )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2157 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2158 // case #4. Array's element reference:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2159 // {CheckCastPP | CastPP}
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2160 // | | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2161 // | AddP ( array's element offset )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2162 // | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2163 // AddP ( array's offset )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2164 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2165 // case #5. Raw object's field reference for arraycopy stub call:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2166 // The inline_native_clone() case when the arraycopy stub is called
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2167 // after the allocation before Initialize and CheckCastPP nodes.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2168 // Allocate
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2169 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2170 // Proj #5 ( oop result )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2171 // | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2172 // AddP ( base == address )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2173 //
77
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2174 // case #6. Constant Pool, ThreadLocal, CastX2P or
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2175 // Raw object's field reference:
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2176 // {ConP, ThreadLocal, CastX2P, raw Load}
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2177 // top |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2178 // \ |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2179 // AddP ( base == top )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2180 //
77
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2181 // case #7. Klass's field reference.
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2182 // LoadKlass
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2183 // | |
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2184 // AddP ( base == address )
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2185 //
164
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2186 // case #8. narrow Klass's field reference.
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2187 // LoadNKlass
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2188 // |
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2189 // DecodeN
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2190 // | |
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2191 // AddP ( base == address )
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2192 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2193 Node *base = addp->in(AddPNode::Base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2194 if (base->uncast()->is_top()) { // The AddP case #3 and #6.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2195 base = addp->in(AddPNode::Address);
957
159d56b94894 6880574: C2 assert in escape.cpp:445 on linux-amd64
kvn
parents: 866
diff changeset
2196 while (base->is_AddP()) {
159d56b94894 6880574: C2 assert in escape.cpp:445 on linux-amd64
kvn
parents: 866
diff changeset
2197 // Case #6 (unsafe access) may have several chained AddP nodes.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2198 assert(base->in(AddPNode::Base)->uncast()->is_top(), "expected unsafe access address only");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2199 base = base->in(AddPNode::Address);
957
159d56b94894 6880574: C2 assert in escape.cpp:445 on linux-amd64
kvn
parents: 866
diff changeset
2200 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2201 Node* uncast_base = base->uncast();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2202 int opcode = uncast_base->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2203 assert(opcode == Op_ConP || opcode == Op_ThreadLocal ||
6848
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
2204 opcode == Op_CastX2P || uncast_base->is_DecodeNarrowPtr() ||
10391
83dcb116fdb1 8015441: runThese crashed with assert(opcode == Op_ConP || opcode == Op_ThreadLocal || opcode == Op_CastX2P ..) failed: sanity
kvn
parents: 10281
diff changeset
2205 (uncast_base->is_Mem() && (uncast_base->bottom_type()->isa_rawptr() != NULL)) ||
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2206 (uncast_base->is_Proj() && uncast_base->in(0)->is_Allocate()), "sanity");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2207 }
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2208 return base;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2209 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2210
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2211 Node* ConnectionGraph::find_second_addp(Node* addp, Node* n) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2212 assert(addp->is_AddP() && addp->outcnt() > 0, "Don't process dead nodes");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2213 Node* addp2 = addp->raw_out(0);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2214 if (addp->outcnt() == 1 && addp2->is_AddP() &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2215 addp2->in(AddPNode::Base) == n &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2216 addp2->in(AddPNode::Address) == addp) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2217 assert(addp->in(AddPNode::Base) == n, "expecting the same base");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2218 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2219 // Find array's offset to push it on worklist first and
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2220 // as result process an array's element offset first (pushed second)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2221 // to avoid CastPP for the array's offset.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2222 // Otherwise the inserted CastPP (LocalVar) will point to what
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2223 // the AddP (Field) points to. Which would be wrong since
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2224 // the algorithm expects the CastPP has the same point as
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2225 // as AddP's base CheckCastPP (LocalVar).
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2226 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2227 // ArrayAllocation
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2228 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2229 // CheckCastPP
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2230 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2231 // memProj (from ArrayAllocation CheckCastPP)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2232 // | ||
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2233 // | || Int (element index)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2234 // | || | ConI (log(element size))
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2235 // | || | /
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2236 // | || LShift
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2237 // | || /
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2238 // | AddP (array's element offset)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2239 // | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2240 // | | ConI (array's offset: #12(32-bits) or #24(64-bits))
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2241 // | / /
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2242 // AddP (array's offset)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2243 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2244 // Load/Store (memory operation on array's element)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2245 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2246 return addp2;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2247 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2248 return NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2249 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2250
a61af66fc99e Initial load
duke
parents:
diff changeset
2251 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2252 // Adjust the type and inputs of an AddP which computes the
a61af66fc99e Initial load
duke
parents:
diff changeset
2253 // address of a field of an instance
a61af66fc99e Initial load
duke
parents:
diff changeset
2254 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2255 bool ConnectionGraph::split_AddP(Node *addp, Node *base) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2256 PhaseGVN* igvn = _igvn;
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2257 const TypeOopPtr *base_t = igvn->type(base)->isa_oopptr();
223
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2258 assert(base_t != NULL && base_t->is_known_instance(), "expecting instance oopptr");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2259 const TypeOopPtr *t = igvn->type(addp)->isa_oopptr();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2260 if (t == NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2261 // We are computing a raw address for a store captured by an Initialize
293
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2262 // compute an appropriate address type (cases #3 and #5).
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2263 assert(igvn->type(addp) == TypeRawPtr::NOTNULL, "must be raw pointer");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2264 assert(addp->in(AddPNode::Address)->is_Proj(), "base of raw address must be result projection from allocation");
306
af945ba2e739 6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents: 293
diff changeset
2265 intptr_t offs = (int)igvn->find_intptr_t_con(addp->in(AddPNode::Offset), Type::OffsetBot);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2266 assert(offs != Type::OffsetBot, "offset must be a constant");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2267 t = base_t->add_offset(offs)->is_oopptr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2268 }
223
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2269 int inst_id = base_t->instance_id();
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2270 assert(!t->is_known_instance() || t->instance_id() == inst_id,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2271 "old type must be non-instance or match new type");
293
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2272
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2273 // The type 't' could be subclass of 'base_t'.
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2274 // As result t->offset() could be large then base_t's size and it will
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2275 // cause the failure in add_offset() with narrow oops since TypeOopPtr()
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2276 // constructor verifies correctness of the offset.
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2277 //
605
98cb887364d3 6810672: Comment typos
twisti
parents: 584
diff changeset
2278 // It could happened on subclass's branch (from the type profiling
293
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2279 // inlining) which was not eliminated during parsing since the exactness
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2280 // of the allocation type was not propagated to the subclass type check.
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2281 //
988
7e309ecb83ce 6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents: 957
diff changeset
2282 // Or the type 't' could be not related to 'base_t' at all.
7e309ecb83ce 6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents: 957
diff changeset
2283 // It could happened when CHA type is different from MDO type on a dead path
7e309ecb83ce 6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents: 957
diff changeset
2284 // (for example, from instanceof check) which is not collapsed during parsing.
7e309ecb83ce 6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents: 957
diff changeset
2285 //
293
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2286 // Do nothing for such AddP node and don't process its users since
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2287 // this code branch will go away.
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2288 //
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2289 if (!t->is_known_instance() &&
988
7e309ecb83ce 6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents: 957
diff changeset
2290 !base_t->klass()->is_subtype_of(t->klass())) {
293
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2291 return false; // bail out
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2292 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2293 const TypeOopPtr *tinst = base_t->add_offset(t->offset())->is_oopptr();
1062
dcdcc8c16e20 6896352: CTW fails hotspot/src/share/vm/opto/escape.cpp:1155
kvn
parents: 988
diff changeset
2294 // Do NOT remove the next line: ensure a new alias index is allocated
dcdcc8c16e20 6896352: CTW fails hotspot/src/share/vm/opto/escape.cpp:1155
kvn
parents: 988
diff changeset
2295 // for the instance type. Note: C++ will not remove it since the call
dcdcc8c16e20 6896352: CTW fails hotspot/src/share/vm/opto/escape.cpp:1155
kvn
parents: 988
diff changeset
2296 // has side effect.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2297 int alias_idx = _compile->get_alias_index(tinst);
a61af66fc99e Initial load
duke
parents:
diff changeset
2298 igvn->set_type(addp, tinst);
a61af66fc99e Initial load
duke
parents:
diff changeset
2299 // record the allocation in the node map
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2300 set_map(addp, get_map(base->_idx));
253
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2301 // Set addp's Base and Address to 'base'.
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2302 Node *abase = addp->in(AddPNode::Base);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2303 Node *adr = addp->in(AddPNode::Address);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2304 if (adr->is_Proj() && adr->in(0)->is_Allocate() &&
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2305 adr->in(0)->_idx == (uint)inst_id) {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2306 // Skip AddP cases #3 and #5.
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2307 } else {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2308 assert(!abase->is_top(), "sanity"); // AddP case #3
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2309 if (abase != base) {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2310 igvn->hash_delete(addp);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2311 addp->set_req(AddPNode::Base, base);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2312 if (abase == adr) {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2313 addp->set_req(AddPNode::Address, base);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2314 } else {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2315 // AddP case #4 (adr is array's element offset AddP node)
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2316 #ifdef ASSERT
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2317 const TypeOopPtr *atype = igvn->type(adr)->isa_oopptr();
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2318 assert(adr->is_AddP() && atype != NULL &&
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2319 atype->instance_id() == inst_id, "array's element offset should be processed first");
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2320 #endif
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2321 }
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2322 igvn->hash_insert(addp);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2323 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2324 }
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2325 // Put on IGVN worklist since at least addp's type was changed above.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2326 record_for_optimizer(addp);
293
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2327 return true;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2328 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2329
a61af66fc99e Initial load
duke
parents:
diff changeset
2330 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2331 // Create a new version of orig_phi if necessary. Returns either the newly
2459
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2332 // created phi or an existing phi. Sets create_new to indicate whether a new
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2333 // phi was created. Cache the last newly created phi in the node map.
a61af66fc99e Initial load
duke
parents:
diff changeset
2334 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2335 PhiNode *ConnectionGraph::create_split_phi(PhiNode *orig_phi, int alias_idx, GrowableArray<PhiNode *> &orig_phi_worklist, bool &new_created) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2336 Compile *C = _compile;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2337 PhaseGVN* igvn = _igvn;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2338 new_created = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2339 int phi_alias_idx = C->get_alias_index(orig_phi->adr_type());
a61af66fc99e Initial load
duke
parents:
diff changeset
2340 // nothing to do if orig_phi is bottom memory or matches alias_idx
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2341 if (phi_alias_idx == alias_idx) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2342 return orig_phi;
a61af66fc99e Initial load
duke
parents:
diff changeset
2343 }
851
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2344 // Have we recently created a Phi for this alias index?
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2345 PhiNode *result = get_map_phi(orig_phi->_idx);
a61af66fc99e Initial load
duke
parents:
diff changeset
2346 if (result != NULL && C->get_alias_index(result->adr_type()) == alias_idx) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2347 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
2348 }
851
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2349 // Previous check may fail when the same wide memory Phi was split into Phis
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2350 // for different memory slices. Search all Phis for this region.
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2351 if (result != NULL) {
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2352 Node* region = orig_phi->in(0);
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2353 for (DUIterator_Fast imax, i = region->fast_outs(imax); i < imax; i++) {
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2354 Node* phi = region->fast_out(i);
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2355 if (phi->is_Phi() &&
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2356 C->get_alias_index(phi->as_Phi()->adr_type()) == alias_idx) {
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2357 assert(phi->_idx >= nodes_size(), "only new Phi per instance memory slice");
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2358 return phi->as_Phi();
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2359 }
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2360 }
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2361 }
7196
2aff40cb4703 7092905: C2: Keep track of the number of dead nodes
bharadwaj
parents: 6944
diff changeset
2362 if ((int) (C->live_nodes() + 2*NodeLimitFudgeFactor) > MaxNodeLimit) {
38
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2363 if (C->do_escape_analysis() == true && !C->failing()) {
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2364 // Retry compilation without escape analysis.
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2365 // If this is the first failure, the sentinel string will "stick"
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2366 // to the Compile object, and the C2Compiler will see it and retry.
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2367 C->record_failure(C2Compiler::retry_no_escape_analysis());
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2368 }
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2369 return NULL;
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2370 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2371 orig_phi_worklist.append_if_missing(orig_phi);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2372 const TypePtr *atype = C->get_adr_type(alias_idx);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2373 result = PhiNode::make(orig_phi->in(0), NULL, Type::MEMORY, atype);
851
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2374 C->copy_node_notes_to(result, orig_phi);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2375 igvn->set_type(result, result->bottom_type());
a61af66fc99e Initial load
duke
parents:
diff changeset
2376 record_for_optimizer(result);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2377 set_map(orig_phi, result);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2378 new_created = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
2379 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
2380 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2381
a61af66fc99e Initial load
duke
parents:
diff changeset
2382 //
2459
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2383 // Return a new version of Memory Phi "orig_phi" with the inputs having the
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2384 // specified alias index.
a61af66fc99e Initial load
duke
parents:
diff changeset
2385 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2386 PhiNode *ConnectionGraph::split_memory_phi(PhiNode *orig_phi, int alias_idx, GrowableArray<PhiNode *> &orig_phi_worklist) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2387 assert(alias_idx != Compile::AliasIdxBot, "can't split out bottom memory");
a61af66fc99e Initial load
duke
parents:
diff changeset
2388 Compile *C = _compile;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2389 PhaseGVN* igvn = _igvn;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2390 bool new_phi_created;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2391 PhiNode *result = create_split_phi(orig_phi, alias_idx, orig_phi_worklist, new_phi_created);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2392 if (!new_phi_created) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2393 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
2394 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2395 GrowableArray<PhiNode *> phi_list;
a61af66fc99e Initial load
duke
parents:
diff changeset
2396 GrowableArray<uint> cur_input;
a61af66fc99e Initial load
duke
parents:
diff changeset
2397 PhiNode *phi = orig_phi;
a61af66fc99e Initial load
duke
parents:
diff changeset
2398 uint idx = 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
2399 bool finished = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2400 while(!finished) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2401 while (idx < phi->req()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2402 Node *mem = find_inst_mem(phi->in(idx), alias_idx, orig_phi_worklist);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2403 if (mem != NULL && mem->is_Phi()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2404 PhiNode *newphi = create_split_phi(mem->as_Phi(), alias_idx, orig_phi_worklist, new_phi_created);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2405 if (new_phi_created) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2406 // found an phi for which we created a new split, push current one on worklist and begin
a61af66fc99e Initial load
duke
parents:
diff changeset
2407 // processing new one
a61af66fc99e Initial load
duke
parents:
diff changeset
2408 phi_list.push(phi);
a61af66fc99e Initial load
duke
parents:
diff changeset
2409 cur_input.push(idx);
a61af66fc99e Initial load
duke
parents:
diff changeset
2410 phi = mem->as_Phi();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2411 result = newphi;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2412 idx = 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
2413 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
2414 } else {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2415 mem = newphi;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2416 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2417 }
38
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2418 if (C->failing()) {
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2419 return NULL;
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2420 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2421 result->set_req(idx++, mem);
a61af66fc99e Initial load
duke
parents:
diff changeset
2422 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2423 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
2424 // verify that the new Phi has an input for each input of the original
a61af66fc99e Initial load
duke
parents:
diff changeset
2425 assert( phi->req() == result->req(), "must have same number of inputs.");
a61af66fc99e Initial load
duke
parents:
diff changeset
2426 assert( result->in(0) != NULL && result->in(0) == phi->in(0), "regions must match");
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2427 #endif
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2428 // Check if all new phi's inputs have specified alias index.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2429 // Otherwise use old phi.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2430 for (uint i = 1; i < phi->req(); i++) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2431 Node* in = result->in(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2432 assert((phi->in(i) == NULL) == (in == NULL), "inputs must correspond.");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2433 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2434 // we have finished processing a Phi, see if there are any more to do
a61af66fc99e Initial load
duke
parents:
diff changeset
2435 finished = (phi_list.length() == 0 );
a61af66fc99e Initial load
duke
parents:
diff changeset
2436 if (!finished) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2437 phi = phi_list.pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
2438 idx = cur_input.pop();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2439 PhiNode *prev_result = get_map_phi(phi->_idx);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2440 prev_result->set_req(idx++, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2441 result = prev_result;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2442 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2443 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2444 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
2445 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2446
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2447 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2448 // The next methods are derived from methods in MemNode.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2449 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2450 Node* ConnectionGraph::step_through_mergemem(MergeMemNode *mmem, int alias_idx, const TypeOopPtr *toop) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2451 Node *mem = mmem;
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2452 // TypeOopPtr::NOTNULL+any is an OOP with unknown offset - generally
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2453 // means an array I have not precisely typed yet. Do not do any
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2454 // alias stuff with it any time soon.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2455 if (toop->base() != Type::AnyPtr &&
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2456 !(toop->klass() != NULL &&
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2457 toop->klass()->is_java_lang_Object() &&
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2458 toop->offset() == Type::OffsetBot)) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2459 mem = mmem->memory_at(alias_idx);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2460 // Update input if it is progress over what we have now
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2461 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2462 return mem;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2463 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2464
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2465 //
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2466 // Move memory users to their memory slices.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2467 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2468 void ConnectionGraph::move_inst_mem(Node* n, GrowableArray<PhiNode *> &orig_phis) {
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2469 Compile* C = _compile;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2470 PhaseGVN* igvn = _igvn;
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2471 const TypePtr* tp = igvn->type(n->in(MemNode::Address))->isa_ptr();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2472 assert(tp != NULL, "ptr type");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2473 int alias_idx = C->get_alias_index(tp);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2474 int general_idx = C->get_general_index(alias_idx);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2475
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2476 // Move users first
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2477 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2478 Node* use = n->fast_out(i);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2479 if (use->is_MergeMem()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2480 MergeMemNode* mmem = use->as_MergeMem();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2481 assert(n == mmem->memory_at(alias_idx), "should be on instance memory slice");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2482 if (n != mmem->memory_at(general_idx) || alias_idx == general_idx) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2483 continue; // Nothing to do
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2484 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2485 // Replace previous general reference to mem node.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2486 uint orig_uniq = C->unique();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2487 Node* m = find_inst_mem(n, general_idx, orig_phis);
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2488 assert(orig_uniq == C->unique(), "no new nodes");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2489 mmem->set_memory_at(general_idx, m);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2490 --imax;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2491 --i;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2492 } else if (use->is_MemBar()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2493 assert(!use->is_Initialize(), "initializing stores should not be moved");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2494 if (use->req() > MemBarNode::Precedent &&
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2495 use->in(MemBarNode::Precedent) == n) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2496 // Don't move related membars.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2497 record_for_optimizer(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2498 continue;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2499 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2500 tp = use->as_MemBar()->adr_type()->isa_ptr();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2501 if (tp != NULL && C->get_alias_index(tp) == alias_idx ||
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2502 alias_idx == general_idx) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2503 continue; // Nothing to do
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2504 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2505 // Move to general memory slice.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2506 uint orig_uniq = C->unique();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2507 Node* m = find_inst_mem(n, general_idx, orig_phis);
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2508 assert(orig_uniq == C->unique(), "no new nodes");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2509 igvn->hash_delete(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2510 imax -= use->replace_edge(n, m);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2511 igvn->hash_insert(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2512 record_for_optimizer(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2513 --i;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2514 #ifdef ASSERT
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2515 } else if (use->is_Mem()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2516 if (use->Opcode() == Op_StoreCM && use->in(MemNode::OopStore) == n) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2517 // Don't move related cardmark.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2518 continue;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2519 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2520 // Memory nodes should have new memory input.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2521 tp = igvn->type(use->in(MemNode::Address))->isa_ptr();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2522 assert(tp != NULL, "ptr type");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2523 int idx = C->get_alias_index(tp);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2524 assert(get_map(use->_idx) != NULL || idx == alias_idx,
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2525 "Following memory nodes should have new memory input or be on the same memory slice");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2526 } else if (use->is_Phi()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2527 // Phi nodes should be split and moved already.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2528 tp = use->as_Phi()->adr_type()->isa_ptr();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2529 assert(tp != NULL, "ptr type");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2530 int idx = C->get_alias_index(tp);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2531 assert(idx == alias_idx, "Following Phi nodes should be on the same memory slice");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2532 } else {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2533 use->dump();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2534 assert(false, "should not be here");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2535 #endif
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2536 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2537 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2538 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2539
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2540 //
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2541 // Search memory chain of "mem" to find a MemNode whose address
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2542 // is the specified alias index.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2543 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2544 Node* ConnectionGraph::find_inst_mem(Node *orig_mem, int alias_idx, GrowableArray<PhiNode *> &orig_phis) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2545 if (orig_mem == NULL)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2546 return orig_mem;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2547 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2548 PhaseGVN* igvn = _igvn;
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2549 const TypeOopPtr *toop = C->get_adr_type(alias_idx)->isa_oopptr();
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2550 bool is_instance = (toop != NULL) && toop->is_known_instance();
253
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2551 Node *start_mem = C->start()->proj_out(TypeFunc::Memory);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2552 Node *prev = NULL;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2553 Node *result = orig_mem;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2554 while (prev != result) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2555 prev = result;
253
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2556 if (result == start_mem)
605
98cb887364d3 6810672: Comment typos
twisti
parents: 584
diff changeset
2557 break; // hit one of our sentinels
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2558 if (result->is_Mem()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2559 const Type *at = igvn->type(result->in(MemNode::Address));
2459
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2560 if (at == Type::TOP)
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2561 break; // Dead
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2562 assert (at->isa_ptr() != NULL, "pointer type required.");
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2563 int idx = C->get_alias_index(at->is_ptr());
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2564 if (idx == alias_idx)
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2565 break; // Found
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2566 if (!is_instance && (at->isa_oopptr() == NULL ||
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2567 !at->is_oopptr()->is_known_instance())) {
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2568 break; // Do not skip store to general memory slice.
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2569 }
253
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2570 result = result->in(MemNode::Memory);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2571 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2572 if (!is_instance)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2573 continue; // don't search further for non-instance types
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2574 // skip over a call which does not affect this memory slice
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2575 if (result->is_Proj() && result->as_Proj()->_con == TypeFunc::Memory) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2576 Node *proj_in = result->in(0);
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2577 if (proj_in->is_Allocate() && proj_in->_idx == (uint)toop->instance_id()) {
605
98cb887364d3 6810672: Comment typos
twisti
parents: 584
diff changeset
2578 break; // hit one of our sentinels
253
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2579 } else if (proj_in->is_Call()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2580 CallNode *call = proj_in->as_Call();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2581 if (!call->may_modify(toop, igvn)) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2582 result = call->in(TypeFunc::Memory);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2583 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2584 } else if (proj_in->is_Initialize()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2585 AllocateNode* alloc = proj_in->as_Initialize()->allocation();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2586 // Stop if this is the initialization for the object instance which
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2587 // which contains this memory slice, otherwise skip over it.
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2588 if (alloc == NULL || alloc->_idx != (uint)toop->instance_id()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2589 result = proj_in->in(TypeFunc::Memory);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2590 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2591 } else if (proj_in->is_MemBar()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2592 result = proj_in->in(TypeFunc::Memory);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2593 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2594 } else if (result->is_MergeMem()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2595 MergeMemNode *mmem = result->as_MergeMem();
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2596 result = step_through_mergemem(mmem, alias_idx, toop);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2597 if (result == mmem->base_memory()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2598 // Didn't find instance memory, search through general slice recursively.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2599 result = mmem->memory_at(C->get_general_index(alias_idx));
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2600 result = find_inst_mem(result, alias_idx, orig_phis);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2601 if (C->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2602 return NULL;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2603 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2604 mmem->set_memory_at(alias_idx, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2605 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2606 } else if (result->is_Phi() &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2607 C->get_alias_index(result->as_Phi()->adr_type()) != alias_idx) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2608 Node *un = result->as_Phi()->unique_input(igvn);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2609 if (un != NULL) {
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2610 orig_phis.append_if_missing(result->as_Phi());
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2611 result = un;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2612 } else {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2613 break;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2614 }
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2615 } else if (result->is_ClearArray()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2616 if (!ClearArrayNode::step_through(&result, (uint)toop->instance_id(), igvn)) {
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2617 // Can not bypass initialization of the instance
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2618 // we are looking for.
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2619 break;
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2620 }
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2621 // Otherwise skip it (the call updated 'result' value).
584
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2622 } else if (result->Opcode() == Op_SCMemProj) {
7637
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2623 Node* mem = result->in(0);
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2624 Node* adr = NULL;
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2625 if (mem->is_LoadStore()) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2626 adr = mem->in(MemNode::Address);
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2627 } else {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2628 assert(mem->Opcode() == Op_EncodeISOArray, "sanity");
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2629 adr = mem->in(3); // Memory edge corresponds to destination array
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2630 }
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2631 const Type *at = igvn->type(adr);
584
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2632 if (at != Type::TOP) {
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2633 assert (at->isa_ptr() != NULL, "pointer type required.");
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2634 int idx = C->get_alias_index(at->is_ptr());
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2635 assert(idx != alias_idx, "Object is not scalar replaceable if a LoadStore node access its field");
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2636 break;
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2637 }
7637
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2638 result = mem->in(MemNode::Memory);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2639 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2640 }
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2641 if (result->is_Phi()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2642 PhiNode *mphi = result->as_Phi();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2643 assert(mphi->bottom_type() == Type::MEMORY, "memory phi required");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2644 const TypePtr *t = mphi->adr_type();
2459
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2645 if (!is_instance) {
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2646 // Push all non-instance Phis on the orig_phis worklist to update inputs
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2647 // during Phase 4 if needed.
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2648 orig_phis.append_if_missing(mphi);
2459
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2649 } else if (C->get_alias_index(t) != alias_idx) {
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2650 // Create a new Phi with the specified alias index type.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2651 result = split_memory_phi(mphi, alias_idx, orig_phis);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2652 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2653 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2654 // the result is either MemNode, PhiNode, InitializeNode.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2655 return result;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2656 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2657
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2658 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2659 // Convert the types of unescaped object to instance types where possible,
a61af66fc99e Initial load
duke
parents:
diff changeset
2660 // propagate the new type information through the graph, and update memory
a61af66fc99e Initial load
duke
parents:
diff changeset
2661 // edges and MergeMem inputs to reflect the new type.
a61af66fc99e Initial load
duke
parents:
diff changeset
2662 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2663 // We start with allocations (and calls which may be allocations) on alloc_worklist.
a61af66fc99e Initial load
duke
parents:
diff changeset
2664 // The processing is done in 4 phases:
a61af66fc99e Initial load
duke
parents:
diff changeset
2665 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2666 // Phase 1: Process possible allocations from alloc_worklist. Create instance
a61af66fc99e Initial load
duke
parents:
diff changeset
2667 // types for the CheckCastPP for allocations where possible.
a61af66fc99e Initial load
duke
parents:
diff changeset
2668 // Propagate the the new types through users as follows:
a61af66fc99e Initial load
duke
parents:
diff changeset
2669 // casts and Phi: push users on alloc_worklist
a61af66fc99e Initial load
duke
parents:
diff changeset
2670 // AddP: cast Base and Address inputs to the instance type
a61af66fc99e Initial load
duke
parents:
diff changeset
2671 // push any AddP users on alloc_worklist and push any memnode
a61af66fc99e Initial load
duke
parents:
diff changeset
2672 // users onto memnode_worklist.
a61af66fc99e Initial load
duke
parents:
diff changeset
2673 // Phase 2: Process MemNode's from memnode_worklist. compute new address type and
a61af66fc99e Initial load
duke
parents:
diff changeset
2674 // search the Memory chain for a store with the appropriate type
a61af66fc99e Initial load
duke
parents:
diff changeset
2675 // address type. If a Phi is found, create a new version with
605
98cb887364d3 6810672: Comment typos
twisti
parents: 584
diff changeset
2676 // the appropriate memory slices from each of the Phi inputs.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2677 // For stores, process the users as follows:
a61af66fc99e Initial load
duke
parents:
diff changeset
2678 // MemNode: push on memnode_worklist
a61af66fc99e Initial load
duke
parents:
diff changeset
2679 // MergeMem: push on mergemem_worklist
a61af66fc99e Initial load
duke
parents:
diff changeset
2680 // Phase 3: Process MergeMem nodes from mergemem_worklist. Walk each memory slice
a61af66fc99e Initial load
duke
parents:
diff changeset
2681 // moving the first node encountered of each instance type to the
a61af66fc99e Initial load
duke
parents:
diff changeset
2682 // the input corresponding to its alias index.
a61af66fc99e Initial load
duke
parents:
diff changeset
2683 // appropriate memory slice.
a61af66fc99e Initial load
duke
parents:
diff changeset
2684 // Phase 4: Update the inputs of non-instance memory Phis and the Memory input of memnodes.
a61af66fc99e Initial load
duke
parents:
diff changeset
2685 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2686 // In the following example, the CheckCastPP nodes are the cast of allocation
a61af66fc99e Initial load
duke
parents:
diff changeset
2687 // results and the allocation of node 29 is unescaped and eligible to be an
a61af66fc99e Initial load
duke
parents:
diff changeset
2688 // instance type.
a61af66fc99e Initial load
duke
parents:
diff changeset
2689 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2690 // We start with:
a61af66fc99e Initial load
duke
parents:
diff changeset
2691 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2692 // 7 Parm #memory
a61af66fc99e Initial load
duke
parents:
diff changeset
2693 // 10 ConI "12"
a61af66fc99e Initial load
duke
parents:
diff changeset
2694 // 19 CheckCastPP "Foo"
a61af66fc99e Initial load
duke
parents:
diff changeset
2695 // 20 AddP _ 19 19 10 Foo+12 alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2696 // 29 CheckCastPP "Foo"
a61af66fc99e Initial load
duke
parents:
diff changeset
2697 // 30 AddP _ 29 29 10 Foo+12 alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2698 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2699 // 40 StoreP 25 7 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2700 // 50 StoreP 35 40 30 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2701 // 60 StoreP 45 50 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2702 // 70 LoadP _ 60 30 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2703 // 80 Phi 75 50 60 Memory alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2704 // 90 LoadP _ 80 30 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2705 // 100 LoadP _ 80 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2706 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2707 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2708 // Phase 1 creates an instance type for node 29 assigning it an instance id of 24
a61af66fc99e Initial load
duke
parents:
diff changeset
2709 // and creating a new alias index for node 30. This gives:
a61af66fc99e Initial load
duke
parents:
diff changeset
2710 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2711 // 7 Parm #memory
a61af66fc99e Initial load
duke
parents:
diff changeset
2712 // 10 ConI "12"
a61af66fc99e Initial load
duke
parents:
diff changeset
2713 // 19 CheckCastPP "Foo"
a61af66fc99e Initial load
duke
parents:
diff changeset
2714 // 20 AddP _ 19 19 10 Foo+12 alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2715 // 29 CheckCastPP "Foo" iid=24
a61af66fc99e Initial load
duke
parents:
diff changeset
2716 // 30 AddP _ 29 29 10 Foo+12 alias_index=6 iid=24
a61af66fc99e Initial load
duke
parents:
diff changeset
2717 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2718 // 40 StoreP 25 7 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2719 // 50 StoreP 35 40 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2720 // 60 StoreP 45 50 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2721 // 70 LoadP _ 60 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2722 // 80 Phi 75 50 60 Memory alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2723 // 90 LoadP _ 80 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2724 // 100 LoadP _ 80 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2725 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2726 // In phase 2, new memory inputs are computed for the loads and stores,
a61af66fc99e Initial load
duke
parents:
diff changeset
2727 // And a new version of the phi is created. In phase 4, the inputs to
a61af66fc99e Initial load
duke
parents:
diff changeset
2728 // node 80 are updated and then the memory nodes are updated with the
a61af66fc99e Initial load
duke
parents:
diff changeset
2729 // values computed in phase 2. This results in:
a61af66fc99e Initial load
duke
parents:
diff changeset
2730 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2731 // 7 Parm #memory
a61af66fc99e Initial load
duke
parents:
diff changeset
2732 // 10 ConI "12"
a61af66fc99e Initial load
duke
parents:
diff changeset
2733 // 19 CheckCastPP "Foo"
a61af66fc99e Initial load
duke
parents:
diff changeset
2734 // 20 AddP _ 19 19 10 Foo+12 alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2735 // 29 CheckCastPP "Foo" iid=24
a61af66fc99e Initial load
duke
parents:
diff changeset
2736 // 30 AddP _ 29 29 10 Foo+12 alias_index=6 iid=24
a61af66fc99e Initial load
duke
parents:
diff changeset
2737 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2738 // 40 StoreP 25 7 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2739 // 50 StoreP 35 7 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2740 // 60 StoreP 45 40 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2741 // 70 LoadP _ 50 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2742 // 80 Phi 75 40 60 Memory alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2743 // 120 Phi 75 50 50 Memory alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2744 // 90 LoadP _ 120 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2745 // 100 LoadP _ 80 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2746 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2747 void ConnectionGraph::split_unique_types(GrowableArray<Node *> &alloc_worklist) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2748 GrowableArray<Node *> memnode_worklist;
a61af66fc99e Initial load
duke
parents:
diff changeset
2749 GrowableArray<PhiNode *> orig_phis;
1921
e4fcbeb5a698 6991188: C2 Crashes while compiling method
kvn
parents: 1815
diff changeset
2750 PhaseIterGVN *igvn = _igvn;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2751 uint new_index_start = (uint) _compile->num_alias_types();
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2752 Arena* arena = Thread::current()->resource_area();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2753 VectorSet visited(arena);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2754 ideal_nodes.clear(); // Reset for use with set_map/get_map.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2755 uint unique_old = _compile->unique();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2756
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2757 // Phase 1: Process possible allocations from alloc_worklist.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2758 // Create instance types for the CheckCastPP for allocations where possible.
244
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
2759 //
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
2760 // (Note: don't forget to change the order of the second AddP node on
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
2761 // the alloc_worklist if the order of the worklist processing is changed,
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
2762 // see the comment in find_second_addp().)
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
2763 //
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2764 while (alloc_worklist.length() != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2765 Node *n = alloc_worklist.pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
2766 uint ni = n->_idx;
a61af66fc99e Initial load
duke
parents:
diff changeset
2767 if (n->is_Call()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2768 CallNode *alloc = n->as_Call();
a61af66fc99e Initial load
duke
parents:
diff changeset
2769 // copy escape information to call node
244
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
2770 PointsToNode* ptn = ptnode_adr(alloc->_idx);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2771 PointsToNode::EscapeState es = ptn->escape_state();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2772 // We have an allocation or call which returns a Java object,
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2773 // see if it is unescaped.
4058
59e515ee9354 7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents: 4046
diff changeset
2774 if (es != PointsToNode::NoEscape || !ptn->scalar_replaceable())
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2775 continue;
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2776 // Find CheckCastPP for the allocate or for the return value of a call
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2777 n = alloc->result_cast();
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2778 if (n == NULL) { // No uses except Initialize node
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2779 if (alloc->is_Allocate()) {
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2780 // Set the scalar_replaceable flag for allocation
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2781 // so it could be eliminated if it has no uses.
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2782 alloc->as_Allocate()->_is_scalar_replaceable = true;
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2783 }
10278
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2784 if (alloc->is_CallStaticJava()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2785 // Set the scalar_replaceable flag for boxing method
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2786 // so it could be eliminated if it has no uses.
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2787 alloc->as_CallStaticJava()->_is_scalar_replaceable = true;
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2788 }
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2789 continue;
39
76256d272075 6667612: (Escape Analysis) disable loop cloning if it has a scalar replaceable allocation
kvn
parents: 38
diff changeset
2790 }
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2791 if (!n->is_CheckCastPP()) { // not unique CheckCastPP.
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2792 assert(!alloc->is_Allocate(), "allocation should have unique type");
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2793 continue;
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2794 }
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2795
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2796 // The inline code for Object.clone() casts the allocation result to
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2797 // java.lang.Object and then to the actual type of the allocated
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2798 // object. Detect this case and use the second cast.
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2799 // Also detect j.l.reflect.Array.newInstance(jobject, jint) case when
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2800 // the allocation result is cast to java.lang.Object and then
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2801 // to the actual Array type.
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2802 if (alloc->is_Allocate() && n->as_Type()->type() == TypeInstPtr::NOTNULL
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2803 && (alloc->is_AllocateArray() ||
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2804 igvn->type(alloc->in(AllocateNode::KlassNode)) != TypeKlassPtr::OBJECT)) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2805 Node *cast2 = NULL;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2806 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2807 Node *use = n->fast_out(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2808 if (use->is_CheckCastPP()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2809 cast2 = use;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2810 break;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2811 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2812 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2813 if (cast2 != NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2814 n = cast2;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2815 } else {
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2816 // Non-scalar replaceable if the allocation type is unknown statically
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2817 // (reflection allocation), the object can't be restored during
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2818 // deoptimization without precise type.
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2819 continue;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2820 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2821 }
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2822 if (alloc->is_Allocate()) {
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2823 // Set the scalar_replaceable flag for allocation
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2824 // so it could be eliminated.
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2825 alloc->as_Allocate()->_is_scalar_replaceable = true;
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2826 }
10278
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2827 if (alloc->is_CallStaticJava()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2828 // Set the scalar_replaceable flag for boxing method
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2829 // so it could be eliminated.
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2830 alloc->as_CallStaticJava()->_is_scalar_replaceable = true;
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2831 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2832 set_escape_state(ptnode_adr(n->_idx), es); // CheckCastPP escape state
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2833 // in order for an object to be scalar-replaceable, it must be:
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2834 // - a direct allocation (not a call returning an object)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2835 // - non-escaping
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2836 // - eligible to be a unique type
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2837 // - not determined to be ineligible by escape analysis
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2838 set_map(alloc, n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2839 set_map(n, alloc);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2840 const TypeOopPtr *t = igvn->type(n)->isa_oopptr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2841 if (t == NULL)
4058
59e515ee9354 7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents: 4046
diff changeset
2842 continue; // not a TypeOopPtr
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2843 const TypeOopPtr* tinst = t->cast_to_exactness(true)->is_oopptr()->cast_to_instance_id(ni);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2844 igvn->hash_delete(n);
a61af66fc99e Initial load
duke
parents:
diff changeset
2845 igvn->set_type(n, tinst);
a61af66fc99e Initial load
duke
parents:
diff changeset
2846 n->raise_bottom_type(tinst);
a61af66fc99e Initial load
duke
parents:
diff changeset
2847 igvn->hash_insert(n);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2848 record_for_optimizer(n);
4058
59e515ee9354 7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents: 4046
diff changeset
2849 if (alloc->is_Allocate() && (t->isa_instptr() || t->isa_aryptr())) {
163
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2850
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2851 // First, put on the worklist all Field edges from Connection Graph
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2852 // which is more accurate then putting immediate users from Ideal Graph.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2853 for (EdgeIterator e(ptn); e.has_next(); e.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2854 PointsToNode* tgt = e.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2855 Node* use = tgt->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2856 assert(tgt->is_Field() && use->is_AddP(),
163
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2857 "only AddP nodes are Field edges in CG");
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2858 if (use->outcnt() > 0) { // Don't process dead nodes
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2859 Node* addp2 = find_second_addp(use, use->in(AddPNode::Base));
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2860 if (addp2 != NULL) {
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2861 assert(alloc->is_AllocateArray(),"array allocation was expected");
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2862 alloc_worklist.append_if_missing(addp2);
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2863 }
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2864 alloc_worklist.append_if_missing(use);
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2865 }
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2866 }
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2867
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2868 // An allocation may have an Initialize which has raw stores. Scan
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2869 // the users of the raw allocation result and push AddP users
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2870 // on alloc_worklist.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2871 Node *raw_result = alloc->proj_out(TypeFunc::Parms);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2872 assert (raw_result != NULL, "must have an allocation result");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2873 for (DUIterator_Fast imax, i = raw_result->fast_outs(imax); i < imax; i++) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2874 Node *use = raw_result->fast_out(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2875 if (use->is_AddP() && use->outcnt() > 0) { // Don't process dead nodes
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2876 Node* addp2 = find_second_addp(use, raw_result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2877 if (addp2 != NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2878 assert(alloc->is_AllocateArray(),"array allocation was expected");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2879 alloc_worklist.append_if_missing(addp2);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2880 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2881 alloc_worklist.append_if_missing(use);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2882 } else if (use->is_MemBar()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2883 memnode_worklist.append_if_missing(use);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2884 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2885 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2886 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2887 } else if (n->is_AddP()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2888 JavaObjectNode* jobj = unique_java_object(get_addp_base(n));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2889 if (jobj == NULL || jobj == phantom_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2890 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2891 ptnode_adr(get_addp_base(n)->_idx)->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2892 ptnode_adr(n->_idx)->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2893 assert(jobj != NULL && jobj != phantom_obj, "escaped allocation");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2894 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2895 _compile->record_failure(C2Compiler::retry_no_escape_analysis());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2896 return;
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2897 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2898 Node *base = get_map(jobj->idx()); // CheckCastPP node
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2899 if (!split_AddP(n, base)) continue; // wrong type from dead path
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2900 } else if (n->is_Phi() ||
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2901 n->is_CheckCastPP() ||
168
7793bd37a336 6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents: 164
diff changeset
2902 n->is_EncodeP() ||
7793bd37a336 6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents: 164
diff changeset
2903 n->is_DecodeN() ||
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2904 (n->is_ConstraintCast() && n->Opcode() == Op_CastPP)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2905 if (visited.test_set(n->_idx)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2906 assert(n->is_Phi(), "loops only through Phi's");
a61af66fc99e Initial load
duke
parents:
diff changeset
2907 continue; // already processed
a61af66fc99e Initial load
duke
parents:
diff changeset
2908 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2909 JavaObjectNode* jobj = unique_java_object(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2910 if (jobj == NULL || jobj == phantom_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2911 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2912 ptnode_adr(n->_idx)->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2913 assert(jobj != NULL && jobj != phantom_obj, "escaped allocation");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2914 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2915 _compile->record_failure(C2Compiler::retry_no_escape_analysis());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2916 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2917 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2918 Node *val = get_map(jobj->idx()); // CheckCastPP node
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2919 TypeNode *tn = n->as_Type();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2920 const TypeOopPtr* tinst = igvn->type(val)->isa_oopptr();
223
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2921 assert(tinst != NULL && tinst->is_known_instance() &&
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2922 tinst->instance_id() == jobj->idx() , "instance type expected.");
163
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2923
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2924 const Type *tn_type = igvn->type(tn);
223
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2925 const TypeOopPtr *tn_t;
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2926 if (tn_type->isa_narrowoop()) {
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2927 tn_t = tn_type->make_ptr()->isa_oopptr();
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2928 } else {
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2929 tn_t = tn_type->isa_oopptr();
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2930 }
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2931 if (tn_t != NULL && tinst->klass()->is_subtype_of(tn_t->klass())) {
163
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2932 if (tn_type->isa_narrowoop()) {
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2933 tn_type = tinst->make_narrowoop();
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2934 } else {
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2935 tn_type = tinst;
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2936 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2937 igvn->hash_delete(tn);
163
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2938 igvn->set_type(tn, tn_type);
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2939 tn->set_type(tn_type);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2940 igvn->hash_insert(tn);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2941 record_for_optimizer(n);
293
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2942 } else {
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2943 assert(tn_type == TypePtr::NULL_PTR ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2944 tn_t != NULL && !tinst->klass()->is_subtype_of(tn_t->klass()),
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2945 "unexpected type");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2946 continue; // Skip dead path with different type
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2947 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2948 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2949 } else {
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2950 debug_only(n->dump();)
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2951 assert(false, "EA: unexpected node");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2952 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
2953 }
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2954 // push allocation's users on appropriate worklist
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2955 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2956 Node *use = n->fast_out(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
2957 if(use->is_Mem() && use->in(MemNode::Address) == n) {
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2958 // Load/store to instance's field
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2959 memnode_worklist.append_if_missing(use);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2960 } else if (use->is_MemBar()) {
10278
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2961 if (use->in(TypeFunc::Memory) == n) { // Ignore precedent edge
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2962 memnode_worklist.append_if_missing(use);
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
2963 }
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2964 } else if (use->is_AddP() && use->outcnt() > 0) { // No dead nodes
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2965 Node* addp2 = find_second_addp(use, n);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2966 if (addp2 != NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2967 alloc_worklist.append_if_missing(addp2);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2968 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2969 alloc_worklist.append_if_missing(use);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2970 } else if (use->is_Phi() ||
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2971 use->is_CheckCastPP() ||
6848
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
2972 use->is_EncodeNarrowPtr() ||
8e47bac5643a 7054512: Compress class pointers after perm gen removal
roland
parents: 6795
diff changeset
2973 use->is_DecodeNarrowPtr() ||
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2974 (use->is_ConstraintCast() && use->Opcode() == Op_CastPP)) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2975 alloc_worklist.append_if_missing(use);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2976 #ifdef ASSERT
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2977 } else if (use->is_Mem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2978 assert(use->in(MemNode::Address) != n, "EA: missing allocation reference path");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2979 } else if (use->is_MergeMem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2980 assert(_mergemem_worklist.contains(use->as_MergeMem()), "EA: missing MergeMem node in the worklist");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2981 } else if (use->is_SafePoint()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2982 // Look for MergeMem nodes for calls which reference unique allocation
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2983 // (through CheckCastPP nodes) even for debug info.
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2984 Node* m = use->in(TypeFunc::Memory);
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2985 if (m->is_MergeMem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2986 assert(_mergemem_worklist.contains(m->as_MergeMem()), "EA: missing MergeMem node in the worklist");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2987 }
7637
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2988 } else if (use->Opcode() == Op_EncodeISOArray) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2989 if (use->in(MemNode::Memory) == n || use->in(3) == n) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2990 // EncodeISOArray overwrites destination array
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2991 memnode_worklist.append_if_missing(use);
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
2992 }
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2993 } else {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2994 uint op = use->Opcode();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2995 if (!(op == Op_CmpP || op == Op_Conv2B ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2996 op == Op_CastP2X || op == Op_StoreCM ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2997 op == Op_FastLock || op == Op_AryEq || op == Op_StrComp ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2998 op == Op_StrEquals || op == Op_StrIndexOf)) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2999 n->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3000 use->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3001 assert(false, "EA: missing allocation reference path");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3002 }
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3003 #endif
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3004 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3005 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3006
a61af66fc99e Initial load
duke
parents:
diff changeset
3007 }
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3008 // New alias types were created in split_AddP().
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3009 uint new_index_end = (uint) _compile->num_alias_types();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3010 assert(unique_old == _compile->unique(), "there should be no new ideal nodes after Phase 1");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3011
a61af66fc99e Initial load
duke
parents:
diff changeset
3012 // Phase 2: Process MemNode's from memnode_worklist. compute new address type and
a61af66fc99e Initial load
duke
parents:
diff changeset
3013 // compute new values for Memory inputs (the Memory inputs are not
a61af66fc99e Initial load
duke
parents:
diff changeset
3014 // actually updated until phase 4.)
a61af66fc99e Initial load
duke
parents:
diff changeset
3015 if (memnode_worklist.length() == 0)
a61af66fc99e Initial load
duke
parents:
diff changeset
3016 return; // nothing to do
a61af66fc99e Initial load
duke
parents:
diff changeset
3017 while (memnode_worklist.length() != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3018 Node *n = memnode_worklist.pop();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3019 if (visited.test_set(n->_idx))
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3020 continue;
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3021 if (n->is_Phi() || n->is_ClearArray()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3022 // we don't need to do anything, but the users must be pushed
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3023 } else if (n->is_MemBar()) { // Initialize, MemBar nodes
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3024 // we don't need to do anything, but the users must be pushed
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3025 n = n->as_MemBar()->proj_out(TypeFunc::Memory);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3026 if (n == NULL)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3027 continue;
7637
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3028 } else if (n->Opcode() == Op_EncodeISOArray) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3029 // get the memory projection
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3030 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3031 Node *use = n->fast_out(i);
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3032 if (use->Opcode() == Op_SCMemProj) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3033 n = use;
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3034 break;
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3035 }
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3036 }
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3037 assert(n->Opcode() == Op_SCMemProj, "memory projection required");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3038 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3039 assert(n->is_Mem(), "memory node required.");
a61af66fc99e Initial load
duke
parents:
diff changeset
3040 Node *addr = n->in(MemNode::Address);
a61af66fc99e Initial load
duke
parents:
diff changeset
3041 const Type *addr_t = igvn->type(addr);
a61af66fc99e Initial load
duke
parents:
diff changeset
3042 if (addr_t == Type::TOP)
a61af66fc99e Initial load
duke
parents:
diff changeset
3043 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
3044 assert (addr_t->isa_ptr() != NULL, "pointer type required.");
a61af66fc99e Initial load
duke
parents:
diff changeset
3045 int alias_idx = _compile->get_alias_index(addr_t->is_ptr());
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3046 assert ((uint)alias_idx < new_index_end, "wrong alias index");
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3047 Node *mem = find_inst_mem(n->in(MemNode::Memory), alias_idx, orig_phis);
38
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
3048 if (_compile->failing()) {
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
3049 return;
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
3050 }
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3051 if (mem != n->in(MemNode::Memory)) {
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3052 // We delay the memory edge update since we need old one in
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3053 // MergeMem code below when instances memory slices are separated.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3054 set_map(n, mem);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3055 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3056 if (n->is_Load()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3057 continue; // don't push users
a61af66fc99e Initial load
duke
parents:
diff changeset
3058 } else if (n->is_LoadStore()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3059 // get the memory projection
a61af66fc99e Initial load
duke
parents:
diff changeset
3060 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3061 Node *use = n->fast_out(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
3062 if (use->Opcode() == Op_SCMemProj) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3063 n = use;
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 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3067 assert(n->Opcode() == Op_SCMemProj, "memory projection required");
a61af66fc99e Initial load
duke
parents:
diff changeset
3068 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3069 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3070 // push user on appropriate worklist
a61af66fc99e Initial load
duke
parents:
diff changeset
3071 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3072 Node *use = n->fast_out(i);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3073 if (use->is_Phi() || use->is_ClearArray()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3074 memnode_worklist.append_if_missing(use);
7637
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3075 } else if (use->is_Mem() && use->in(MemNode::Memory) == n) {
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3076 if (use->Opcode() == Op_StoreCM) // Ignore cardmark stores
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3077 continue;
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3078 memnode_worklist.append_if_missing(use);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3079 } else if (use->is_MemBar()) {
10278
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
3080 if (use->in(TypeFunc::Memory) == n) { // Ignore precedent edge
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
3081 memnode_worklist.append_if_missing(use);
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
3082 }
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3083 #ifdef ASSERT
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3084 } else if(use->is_Mem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3085 assert(use->in(MemNode::Memory) != n, "EA: missing memory path");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3086 } else if (use->is_MergeMem()) {
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3087 assert(_mergemem_worklist.contains(use->as_MergeMem()), "EA: missing MergeMem node in the worklist");
7637
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3088 } else if (use->Opcode() == Op_EncodeISOArray) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3089 if (use->in(MemNode::Memory) == n || use->in(3) == n) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3090 // EncodeISOArray overwrites destination array
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3091 memnode_worklist.append_if_missing(use);
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86
kvn
parents: 7196
diff changeset
3092 }
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3093 } else {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3094 uint op = use->Opcode();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3095 if (!(op == Op_StoreCM ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3096 (op == Op_CallLeaf && use->as_CallLeaf()->_name != NULL &&
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3097 strcmp(use->as_CallLeaf()->_name, "g1_wb_pre") == 0) ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3098 op == Op_AryEq || op == Op_StrComp ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3099 op == Op_StrEquals || op == Op_StrIndexOf)) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3100 n->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3101 use->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3102 assert(false, "EA: missing memory path");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3103 }
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3104 #endif
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3105 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3106 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3107 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3108
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3109 // Phase 3: Process MergeMem nodes from mergemem_worklist.
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3110 // Walk each memory slice moving the first node encountered of each
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3111 // instance type to the the input corresponding to its alias index.
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3112 uint length = _mergemem_worklist.length();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3113 for( uint next = 0; next < length; ++next ) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3114 MergeMemNode* nmm = _mergemem_worklist.at(next);
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3115 assert(!visited.test_set(nmm->_idx), "should not be visited before");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3116 // Note: we don't want to use MergeMemStream here because we only want to
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3117 // scan inputs which exist at the start, not ones we add during processing.
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3118 // Note 2: MergeMem may already contains instance memory slices added
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3119 // during find_inst_mem() call when memory nodes were processed above.
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3120 igvn->hash_delete(nmm);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3121 uint nslices = nmm->req();
a61af66fc99e Initial load
duke
parents:
diff changeset
3122 for (uint i = Compile::AliasIdxRaw+1; i < nslices; i++) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3123 Node* mem = nmm->in(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3124 Node* cur = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3125 if (mem == NULL || mem->is_top())
a61af66fc99e Initial load
duke
parents:
diff changeset
3126 continue;
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3127 // First, update mergemem by moving memory nodes to corresponding slices
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3128 // if their type became more precise since this mergemem was created.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3129 while (mem->is_Mem()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3130 const Type *at = igvn->type(mem->in(MemNode::Address));
a61af66fc99e Initial load
duke
parents:
diff changeset
3131 if (at != Type::TOP) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3132 assert (at->isa_ptr() != NULL, "pointer type required.");
a61af66fc99e Initial load
duke
parents:
diff changeset
3133 uint idx = (uint)_compile->get_alias_index(at->is_ptr());
a61af66fc99e Initial load
duke
parents:
diff changeset
3134 if (idx == i) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3135 if (cur == NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
3136 cur = mem;
a61af66fc99e Initial load
duke
parents:
diff changeset
3137 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3138 if (idx >= nmm->req() || nmm->is_empty_memory(nmm->in(idx))) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3139 nmm->set_memory_at(idx, mem);
a61af66fc99e Initial load
duke
parents:
diff changeset
3140 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3141 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3142 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3143 mem = mem->in(MemNode::Memory);
a61af66fc99e Initial load
duke
parents:
diff changeset
3144 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3145 nmm->set_memory_at(i, (cur != NULL) ? cur : mem);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3146 // Find any instance of the current type if we haven't encountered
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3147 // already a memory slice of the instance along the memory chain.
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3148 for (uint ni = new_index_start; ni < new_index_end; ni++) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3149 if((uint)_compile->get_general_index(ni) == i) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3150 Node *m = (ni >= nmm->req()) ? nmm->empty_memory() : nmm->in(ni);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3151 if (nmm->is_empty_memory(m)) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3152 Node* result = find_inst_mem(mem, ni, orig_phis);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3153 if (_compile->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3154 return;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3155 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3156 nmm->set_memory_at(ni, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3157 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3158 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3159 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3160 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3161 // Find the rest of instances values
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3162 for (uint ni = new_index_start; ni < new_index_end; ni++) {
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3163 const TypeOopPtr *tinst = _compile->get_adr_type(ni)->isa_oopptr();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3164 Node* result = step_through_mergemem(nmm, ni, tinst);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3165 if (result == nmm->base_memory()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3166 // Didn't find instance memory, search through general slice recursively.
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3167 result = nmm->memory_at(_compile->get_general_index(ni));
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3168 result = find_inst_mem(result, ni, orig_phis);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3169 if (_compile->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3170 return;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3171 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3172 nmm->set_memory_at(ni, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3173 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3174 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3175 igvn->hash_insert(nmm);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3176 record_for_optimizer(nmm);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3177 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3178
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3179 // Phase 4: Update the inputs of non-instance memory Phis and
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3180 // the Memory input of memnodes
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3181 // First update the inputs of any non-instance Phi's from
a61af66fc99e Initial load
duke
parents:
diff changeset
3182 // which we split out an instance Phi. Note we don't have
a61af66fc99e Initial load
duke
parents:
diff changeset
3183 // to recursively process Phi's encounted on the input memory
a61af66fc99e Initial load
duke
parents:
diff changeset
3184 // chains as is done in split_memory_phi() since they will
a61af66fc99e Initial load
duke
parents:
diff changeset
3185 // also be processed here.
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
3186 for (int j = 0; j < orig_phis.length(); j++) {
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
3187 PhiNode *phi = orig_phis.at(j);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3188 int alias_idx = _compile->get_alias_index(phi->adr_type());
a61af66fc99e Initial load
duke
parents:
diff changeset
3189 igvn->hash_delete(phi);
a61af66fc99e Initial load
duke
parents:
diff changeset
3190 for (uint i = 1; i < phi->req(); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3191 Node *mem = phi->in(i);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3192 Node *new_mem = find_inst_mem(mem, alias_idx, orig_phis);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3193 if (_compile->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3194 return;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3195 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3196 if (mem != new_mem) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3197 phi->set_req(i, new_mem);
a61af66fc99e Initial load
duke
parents:
diff changeset
3198 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3199 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3200 igvn->hash_insert(phi);
a61af66fc99e Initial load
duke
parents:
diff changeset
3201 record_for_optimizer(phi);
a61af66fc99e Initial load
duke
parents:
diff changeset
3202 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3203
a61af66fc99e Initial load
duke
parents:
diff changeset
3204 // Update the memory inputs of MemNodes with the value we computed
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3205 // in Phase 2 and move stores memory users to corresponding memory slices.
3278
66b0e2371912 7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents: 2459
diff changeset
3206 // Disable memory split verification code until the fix for 6984348.
66b0e2371912 7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents: 2459
diff changeset
3207 // Currently it produces false negative results since it does not cover all cases.
66b0e2371912 7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents: 2459
diff changeset
3208 #if 0 // ifdef ASSERT
2249
3763ca6579b7 7013538: Java memory leak with escape analysis
kvn
parents: 2086
diff changeset
3209 visited.Reset();
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3210 Node_Stack old_mems(arena, _compile->unique() >> 2);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3211 #endif
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3212 for (uint i = 0; i < ideal_nodes.size(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3213 Node* n = ideal_nodes.at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3214 Node* nmem = get_map(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3215 assert(nmem != NULL, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3216 if (n->is_Mem()) {
3278
66b0e2371912 7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents: 2459
diff changeset
3217 #if 0 // ifdef ASSERT
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3218 Node* old_mem = n->in(MemNode::Memory);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3219 if (!visited.test_set(old_mem->_idx)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3220 old_mems.push(old_mem, old_mem->outcnt());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3221 }
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3222 #endif
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3223 assert(n->in(MemNode::Memory) != nmem, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3224 if (!n->is_Load()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3225 // Move memory users of a store first.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3226 move_inst_mem(n, orig_phis);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3227 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3228 // Now update memory input
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3229 igvn->hash_delete(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3230 n->set_req(MemNode::Memory, nmem);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3231 igvn->hash_insert(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3232 record_for_optimizer(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3233 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3234 assert(n->is_Allocate() || n->is_CheckCastPP() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3235 n->is_AddP() || n->is_Phi(), "unknown node used for set_map()");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3236 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3237 }
3278
66b0e2371912 7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents: 2459
diff changeset
3238 #if 0 // ifdef ASSERT
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3239 // Verify that memory was split correctly
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3240 while (old_mems.is_nonempty()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3241 Node* old_mem = old_mems.node();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3242 uint old_cnt = old_mems.index();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3243 old_mems.pop();
3278
66b0e2371912 7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents: 2459
diff changeset
3244 assert(old_cnt == old_mem->outcnt(), "old mem could be lost");
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3245 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3246 #endif
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3247 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3248
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3249 #ifndef PRODUCT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3250 static const char *node_type_names[] = {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3251 "UnknownType",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3252 "JavaObject",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3253 "LocalVar",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3254 "Field",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3255 "Arraycopy"
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3256 };
4937
73df3733f2eb 7129284: +DoEscapeAnalysis regression w/ early build of 7u4 (HotSpot 23) on Linux
kvn
parents: 4777
diff changeset
3257
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3258 static const char *esc_names[] = {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3259 "UnknownEscape",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3260 "NoEscape",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3261 "ArgEscape",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3262 "GlobalEscape"
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3263 };
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3264
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3265 void PointsToNode::dump(bool print_state) const {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3266 NodeType nt = node_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3267 tty->print("%s ", node_type_names[(int) nt]);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3268 if (print_state) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3269 EscapeState es = escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3270 EscapeState fields_es = fields_escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3271 tty->print("%s(%s) ", esc_names[(int)es], esc_names[(int)fields_es]);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3272 if (nt == PointsToNode::JavaObject && !this->scalar_replaceable())
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
3273 tty->print("NSR ");
4113
8c57262447d3 7105605: Use EA info to optimize pointers compare
kvn
parents: 4058
diff changeset
3274 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3275 if (is_Field()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3276 FieldNode* f = (FieldNode*)this;
6944
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
3277 if (f->is_oop())
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
3278 tty->print("oop ");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
3279 if (f->offset() > 0)
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity
kvn
parents: 6895
diff changeset
3280 tty->print("+%d ", f->offset());
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3281 tty->print("(");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3282 for (BaseIterator i(f); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3283 PointsToNode* b = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3284 tty->print(" %d%s", b->idx(),(b->is_JavaObject() ? "P" : ""));
4763
1dc233a8c7fe 7121140: Allocation paths require explicit memory synchronization operations for RMO systems
roland
parents: 4122
diff changeset
3285 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3286 tty->print(" )");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3287 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3288 tty->print("[");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3289 for (EdgeIterator i(this); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3290 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3291 tty->print(" %d%s%s", e->idx(),(e->is_JavaObject() ? "P" : (e->is_Field() ? "F" : "")), e->is_Arraycopy() ? "cp" : "");
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
3292 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3293 tty->print(" [");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3294 for (UseIterator i(this); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3295 PointsToNode* u = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3296 bool is_base = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3297 if (PointsToNode::is_base_use(u)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3298 is_base = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3299 u = PointsToNode::get_use_node(u)->as_Field();
4058
59e515ee9354 7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents: 4046
diff changeset
3300 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3301 tty->print(" %d%s%s", u->idx(), is_base ? "b" : "", u->is_Arraycopy() ? "cp" : "");
4113
8c57262447d3 7105605: Use EA info to optimize pointers compare
kvn
parents: 4058
diff changeset
3302 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3303 tty->print(" ]] ");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3304 if (_node == NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3305 tty->print_cr("<null>");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3306 else
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3307 _node->dump();
4113
8c57262447d3 7105605: Use EA info to optimize pointers compare
kvn
parents: 4058
diff changeset
3308 }
8c57262447d3 7105605: Use EA info to optimize pointers compare
kvn
parents: 4058
diff changeset
3309
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3310 void ConnectionGraph::dump(GrowableArray<PointsToNode*>& ptnodes_worklist) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3311 bool first = true;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3312 int ptnodes_length = ptnodes_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3313 for (int i = 0; i < ptnodes_length; i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3314 PointsToNode *ptn = ptnodes_worklist.at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3315 if (ptn == NULL || !ptn->is_JavaObject())
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3316 continue;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3317 PointsToNode::EscapeState es = ptn->escape_state();
10278
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
3318 if ((es != PointsToNode::NoEscape) && !Verbose) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
3319 continue;
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
3320 }
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
3321 Node* n = ptn->ideal_node();
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
3322 if (n->is_Allocate() || (n->is_CallStaticJava() &&
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default
kvn
parents: 7637
diff changeset
3323 n->as_CallStaticJava()->is_boxing_method())) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3324 if (first) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3325 tty->cr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3326 tty->print("======== Connection graph for ");
244
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
3327 _compile->method()->print_short_name();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3328 tty->cr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3329 first = false;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3330 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3331 ptn->dump();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3332 // Print all locals and fields which reference this allocation
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3333 for (UseIterator j(ptn); j.has_next(); j.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3334 PointsToNode* use = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3335 if (use->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3336 use->dump(Verbose);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3337 } else if (Verbose) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3338 use->dump();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3339 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3340 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3341 tty->cr();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3342 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3343 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3344 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3345 #endif