Mercurial > hg > truffle

annotate src/share/vm/opto/escape.cpp @ 6795:7eca5de9e0b6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() Summary: use shorter instruction sequences for atomic add and atomic exchange when possible. Reviewed-by: kvn, jrose
author roland
date Thu, 20 Sep 2012 16:49:17 +0200
parents 6c5b7a6becc8
children 8e47bac5643a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
4937
73df3733f2eb 7129284: +DoEscapeAnalysis regression w/ early build of 7u4 (HotSpot 23) on Linux
kvn
parents: 4777
diff changeset
2 * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1539
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1539
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1539
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
26 #include "ci/bcEscapeAnalyzer.hpp"
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
27 #include "compiler/compileLog.hpp"
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
28 #include "libadt/vectset.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
29 #include "memory/allocation.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
30 #include "opto/c2compiler.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
31 #include "opto/callnode.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
32 #include "opto/cfgnode.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
33 #include "opto/compile.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
34 #include "opto/escape.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
35 #include "opto/phaseX.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1921
diff changeset
36 #include "opto/rootnode.hpp"
0
a61af66fc99e Initial load
duke
parents:
diff changeset
37
1634
60a14ad85270 6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents: 1552
diff changeset
38 ConnectionGraph::ConnectionGraph(Compile * C, PhaseIterGVN *igvn) :
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
39 _nodes(C->comp_arena(), C->unique(), C->unique(), NULL),
244
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
40 _collecting(true),
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
41 _verify(false),
244
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
42 _compile(C),
1634
60a14ad85270 6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents: 1552
diff changeset
43 _igvn(igvn),
244
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
44 _node_map(C->comp_arena()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
45 // Add unknown java object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
46 add_java_object(C->top(), PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
47 phantom_obj = ptnode_adr(C->top()->_idx)->as_JavaObject();
253
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
48 // Add ConP(#NULL) and ConN(#NULL) nodes.
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
49 Node* oop_null = igvn->zerocon(T_OBJECT);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
50 assert(oop_null->_idx < nodes_size(), "should be created already");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
51 add_java_object(oop_null, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
52 null_obj = ptnode_adr(oop_null->_idx)->as_JavaObject();
253
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
53 if (UseCompressedOops) {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
54 Node* noop_null = igvn->zerocon(T_NARROWOOP);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
55 assert(noop_null->_idx < nodes_size(), "should be created already");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
56 map_ideal_node(noop_null, null_obj);
253
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
57 }
4113
8c57262447d3 7105605: Use EA info to optimize pointers compare
kvn
parents: 4058
diff changeset
58 _pcmp_neq = NULL; // Should be initialized
8c57262447d3 7105605: Use EA info to optimize pointers compare
kvn
parents: 4058
diff changeset
59 _pcmp_eq = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
60 }
a61af66fc99e Initial load
duke
parents:
diff changeset
61
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
62 bool ConnectionGraph::has_candidates(Compile *C) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
63 // EA brings benefits only when the code has allocations and/or locks which
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
64 // are represented by ideal Macro nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
65 int cnt = C->macro_count();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
66 for( int i=0; i < cnt; i++ ) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
67 Node *n = C->macro_node(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
68 if ( n->is_Allocate() )
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
69 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
70 if( n->is_Lock() ) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
71 Node* obj = n->as_Lock()->obj_node()->uncast();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
72 if( !(obj->is_Parm() || obj->is_Con()) )
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
73 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
74 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
75 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
76 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
77 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
78
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
79 void ConnectionGraph::do_analysis(Compile *C, PhaseIterGVN *igvn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
80 Compile::TracePhase t2("escapeAnalysis", &Phase::_t_escapeAnalysis, true);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
81 ResourceMark rm;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
82
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
83 // Add ConP#NULL and ConN#NULL nodes before ConnectionGraph construction
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
84 // to create space for them in ConnectionGraph::_nodes[].
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
85 Node* oop_null = igvn->zerocon(T_OBJECT);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
86 Node* noop_null = igvn->zerocon(T_NARROWOOP);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
87 ConnectionGraph* congraph = new(C->comp_arena()) ConnectionGraph(C, igvn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
88 // Perform escape analysis
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
89 if (congraph->compute_escape()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
90 // There are non escaping objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
91 C->set_congraph(congraph);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
92 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
93 // Cleanup.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
94 if (oop_null->outcnt() == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
95 igvn->hash_delete(oop_null);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
96 if (noop_null->outcnt() == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
97 igvn->hash_delete(noop_null);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
98 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
99
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
100 bool ConnectionGraph::compute_escape() {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
101 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
102 PhaseGVN* igvn = _igvn;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
103
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
104 // Worklists used by EA.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
105 Unique_Node_List delayed_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
106 GrowableArray<Node*> alloc_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
107 GrowableArray<Node*> ptr_cmp_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
108 GrowableArray<Node*> storestore_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
109 GrowableArray<PointsToNode*> ptnodes_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
110 GrowableArray<JavaObjectNode*> java_objects_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
111 GrowableArray<JavaObjectNode*> non_escaped_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
112 GrowableArray<FieldNode*> oop_fields_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
113 DEBUG_ONLY( GrowableArray<Node*> addp_worklist; )
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
114
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
115 { Compile::TracePhase t3("connectionGraph", &Phase::_t_connectionGraph, true);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
116
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
117 // 1. Populate Connection Graph (CG) with PointsTo nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
118 ideal_nodes.map(C->unique(), NULL); // preallocate space
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
119 // Initialize worklist
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
120 if (C->root() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
121 ideal_nodes.push(C->root());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
122 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
123 for( uint next = 0; next < ideal_nodes.size(); ++next ) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
124 Node* n = ideal_nodes.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
125 // Create PointsTo nodes and add them to Connection Graph. Called
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
126 // only once per ideal node since ideal_nodes is Unique_Node list.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
127 add_node_to_connection_graph(n, &delayed_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
128 PointsToNode* ptn = ptnode_adr(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
129 if (ptn != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
130 ptnodes_worklist.append(ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
131 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
132 java_objects_worklist.append(ptn->as_JavaObject());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
133 if ((n->is_Allocate() || n->is_CallStaticJava()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
134 (ptn->escape_state() < PointsToNode::GlobalEscape)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
135 // Only allocations and java static calls results are interesting.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
136 non_escaped_worklist.append(ptn->as_JavaObject());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
137 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
138 } else 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
139 oop_fields_worklist.append(ptn->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
140 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
141 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
142 if (n->is_MergeMem()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
143 // Collect all MergeMem nodes to add memory slices for
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
144 // scalar replaceable objects in split_unique_types().
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
145 _mergemem_worklist.append(n->as_MergeMem());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
146 } else if (OptimizePtrCompare && n->is_Cmp() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
147 (n->Opcode() == Op_CmpP || n->Opcode() == Op_CmpN)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
148 // Collect compare pointers nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
149 ptr_cmp_worklist.append(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
150 } else if (n->is_MemBarStoreStore()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
151 // Collect all MemBarStoreStore nodes so that depending on the
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
152 // escape status of the associated Allocate node some of them
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
153 // may be eliminated.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
154 storestore_worklist.append(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
155 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
156 } else if(n->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
157 // Collect address nodes for graph verification.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
158 addp_worklist.append(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
159 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
160 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
161 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
162 Node* m = n->fast_out(i); // Get user
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
163 ideal_nodes.push(m);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
164 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
165 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
166 if (non_escaped_worklist.length() == 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
167 _collecting = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
168 return false; // Nothing to do.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
169 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
170 // Add final simple edges to graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
171 while(delayed_worklist.size() > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
172 Node* n = delayed_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
173 add_final_edges(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
174 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
175 int ptnodes_length = ptnodes_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
176
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
177 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
178 if (VerifyConnectionGraph) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
179 // Verify that no new simple edges could be created and all
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
180 // local vars has edges.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
181 _verify = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
182 for (int next = 0; next < ptnodes_length; ++next) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
183 PointsToNode* ptn = ptnodes_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
184 add_final_edges(ptn->ideal_node());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
185 if (ptn->is_LocalVar() && ptn->edge_count() == 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
186 ptn->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
187 assert(ptn->as_LocalVar()->edge_count() > 0, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
188 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
189 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
190 _verify = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
191 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
192 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
193
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
194 // 2. Finish Graph construction by propagating references to all
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
195 // java objects through graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
196 if (!complete_connection_graph(ptnodes_worklist, non_escaped_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
197 java_objects_worklist, oop_fields_worklist)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
198 // All objects escaped or hit time or iterations limits.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
199 _collecting = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
200 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
201 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
202
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
203 // 3. Adjust scalar_replaceable state of nonescaping objects and push
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
204 // scalar replaceable allocations on alloc_worklist for processing
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
205 // in split_unique_types().
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
206 int non_escaped_length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
207 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
208 JavaObjectNode* ptn = non_escaped_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
209 if (ptn->escape_state() == PointsToNode::NoEscape &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
210 ptn->scalar_replaceable()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
211 adjust_scalar_replaceable_state(ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
212 if (ptn->scalar_replaceable()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
213 alloc_worklist.append(ptn->ideal_node());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
214 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
215 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
216 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
217
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
218 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
219 if (VerifyConnectionGraph) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
220 // Verify that graph is complete - no new edges could be added or needed.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
221 verify_connection_graph(ptnodes_worklist, non_escaped_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
222 java_objects_worklist, addp_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
223 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
224 assert(C->unique() == nodes_size(), "no new ideal nodes should be added during ConnectionGraph build");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
225 assert(null_obj->escape_state() == PointsToNode::NoEscape &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
226 null_obj->edge_count() == 0 &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
227 !null_obj->arraycopy_src() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
228 !null_obj->arraycopy_dst(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
229 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
230
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
231 _collecting = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
232
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
233 } // TracePhase t3("connectionGraph")
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
234
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
235 // 4. Optimize ideal graph based on EA information.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
236 bool has_non_escaping_obj = (non_escaped_worklist.length() > 0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
237 if (has_non_escaping_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
238 optimize_ideal_graph(ptr_cmp_worklist, storestore_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
239 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
240
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
241 #ifndef PRODUCT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
242 if (PrintEscapeAnalysis) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
243 dump(ptnodes_worklist); // Dump ConnectionGraph
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
244 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
245 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
246
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
247 bool has_scalar_replaceable_candidates = (alloc_worklist.length() > 0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
248 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
249 if (VerifyConnectionGraph) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
250 int alloc_length = alloc_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
251 for (int next = 0; next < alloc_length; ++next) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
252 Node* n = alloc_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
253 PointsToNode* ptn = ptnode_adr(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
254 assert(ptn->escape_state() == PointsToNode::NoEscape && ptn->scalar_replaceable(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
255 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
256 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
257 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
258
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
259 // 5. Separate memory graph for scalar replaceable allcations.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
260 if (has_scalar_replaceable_candidates &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
261 C->AliasLevel() >= 3 && EliminateAllocations) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
262 // Now use the escape information to create unique types for
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
263 // scalar replaceable objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
264 split_unique_types(alloc_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
265 if (C->failing()) return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
266 C->print_method("After Escape Analysis", 2);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
267
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
268 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
269 } else if (Verbose && (PrintEscapeAnalysis || PrintEliminateAllocations)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
270 tty->print("=== No allocations eliminated for ");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
271 C->method()->print_short_name();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
272 if(!EliminateAllocations) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
273 tty->print(" since EliminateAllocations is off ===");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
274 } else if(!has_scalar_replaceable_candidates) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
275 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
276 } else if(C->AliasLevel() < 3) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
277 tty->print(" since AliasLevel < 3 ===");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
278 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
279 tty->cr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
280 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
281 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
282 return has_non_escaping_obj;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
283 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
284
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
285 // Utility function for nodes that load an object
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
286 void ConnectionGraph::add_objload_to_connection_graph(Node *n, Unique_Node_List *delayed_worklist) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
287 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
288 // ThreadLocal has RawPtr type.
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
289 const Type* t = _igvn->type(n);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
290 if (t->make_ptr() != NULL) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
291 Node* adr = n->in(MemNode::Address);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
292 #ifdef ASSERT
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
293 if (!adr->is_AddP()) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
294 assert(_igvn->type(adr)->isa_rawptr(), "sanity");
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
295 } else {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
296 assert((ptnode_adr(adr->_idx) == NULL ||
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
297 ptnode_adr(adr->_idx)->as_Field()->is_oop()), "sanity");
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
298 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
299 #endif
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
300 add_local_var_and_edge(n, PointsToNode::NoEscape,
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
301 adr, delayed_worklist);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
302 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
303 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
304
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
305 // 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
306 // connection graph edges.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
307 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
308 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
309 PhaseGVN* igvn = _igvn;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
310 uint n_idx = n->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
311 PointsToNode* n_ptn = ptnode_adr(n_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
312 if (n_ptn != NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
313 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
314
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
315 if (n->is_Call()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
316 // Arguments to allocation and locking don't escape.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
317 if (n->is_AbstractLock()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
318 // 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
319 // 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
320 record_for_optimizer(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
321 } else if (n->is_Allocate()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
322 add_call_node(n->as_Call());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
323 record_for_optimizer(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
324 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
325 if (n->is_CallStaticJava()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
326 const char* name = n->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
327 if (name != NULL && strcmp(name, "uncommon_trap") == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
328 return; // Skip uncommon traps
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
329 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
330 // 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
331 delayed_worklist->push(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
332 // Check if a call returns an object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
333 if (n->as_Call()->returns_pointer() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
334 n->as_Call()->proj_out(TypeFunc::Parms) != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
335 add_call_node(n->as_Call());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
336 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
337 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
338 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
339 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
340 // 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
341 // point to phantom_obj.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
342 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
343 return; // Skip predefined nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
344
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
345 int opcode = n->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
346 switch (opcode) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
347 case Op_AddP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
348 Node* base = get_addp_base(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
349 PointsToNode* ptn_base = ptnode_adr(base->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
350 // 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
351 // adjust_scalar_replaceable_state() and split_unique_types().
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
352 // 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
353 // 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
354 int offset = address_offset(n, igvn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
355 add_field(n, PointsToNode::NoEscape, offset);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
356 if (ptn_base == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
357 delayed_worklist->push(n); // Process it later.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
358 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
359 n_ptn = ptnode_adr(n_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
360 add_base(n_ptn->as_Field(), ptn_base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
361 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
362 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
363 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
364 case Op_CastX2P: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
365 map_ideal_node(n, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
366 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
367 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
368 case Op_CastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
369 case Op_CheckCastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
370 case Op_EncodeP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
371 case Op_DecodeN: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
372 add_local_var_and_edge(n, PointsToNode::NoEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
373 n->in(1), delayed_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
374 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
375 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
376 case Op_CMoveP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
377 add_local_var(n, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
378 // 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
379 // not defined yet.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
380 delayed_worklist->push(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
381 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
382 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
383 case Op_ConP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
384 case Op_ConN: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
385 // 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
386 PointsToNode::EscapeState es;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
387 if (igvn->type(n) == TypePtr::NULL_PTR ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
388 igvn->type(n) == TypeNarrowOop::NULL_PTR) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
389 es = PointsToNode::NoEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
390 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
391 es = PointsToNode::GlobalEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
392 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
393 add_java_object(n, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
394 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
395 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
396 case Op_CreateEx: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
397 // assume that all exception objects globally escape
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
398 add_java_object(n, PointsToNode::GlobalEscape);
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_LoadKlass:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
402 case Op_LoadNKlass: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
403 // Unknown class is loaded
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
404 map_ideal_node(n, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
405 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
406 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
407 case Op_LoadP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
408 case Op_LoadN:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
409 case Op_LoadPLocked: {
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
410 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
411 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
412 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
413 case Op_Parm: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
414 map_ideal_node(n, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
415 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
416 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
417 case Op_PartialSubtypeCheck: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
418 // 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
419 // phantom_obj could be used.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
420 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
421 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
422 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
423 case Op_Phi: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
424 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
425 // ThreadLocal has RawPtr type.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
426 const Type* t = n->as_Phi()->type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
427 if (t->make_ptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
428 add_local_var(n, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
429 // 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
430 // not defined yet.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
431 delayed_worklist->push(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
432 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
433 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
434 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
435 case Op_Proj: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
436 // 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
437 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
438 n->in(0)->as_Call()->returns_pointer()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
439 add_local_var_and_edge(n, PointsToNode::NoEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
440 n->in(0), delayed_worklist);
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 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
443 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
444 case Op_Rethrow: // Exception object escapes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
445 case Op_Return: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
446 if (n->req() > TypeFunc::Parms &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
447 igvn->type(n->in(TypeFunc::Parms))->isa_oopptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
448 // 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
449 add_local_var_and_edge(n, PointsToNode::GlobalEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
450 n->in(TypeFunc::Parms), delayed_worklist);
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 }
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
454 case Op_GetAndSetP:
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
455 case Op_GetAndSetN: {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
456 add_objload_to_connection_graph(n, delayed_worklist);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
457 // fallthrough
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
458 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
459 case Op_StoreP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
460 case Op_StoreN:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
461 case Op_StorePConditional:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
462 case Op_CompareAndSwapP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
463 case Op_CompareAndSwapN: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
464 Node* adr = n->in(MemNode::Address);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
465 const Type *adr_type = igvn->type(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
466 adr_type = adr_type->make_ptr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
467 if (adr_type->isa_oopptr() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
468 (opcode == Op_StoreP || opcode == Op_StoreN) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
469 (adr_type == TypeRawPtr::NOTNULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
470 adr->in(AddPNode::Address)->is_Proj() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
471 adr->in(AddPNode::Address)->in(0)->is_Allocate())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
472 delayed_worklist->push(n); // Process it later.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
473 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
474 assert(adr->is_AddP(), "expecting an AddP");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
475 if (adr_type == TypeRawPtr::NOTNULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
476 // 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
477 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
478 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
479 }
5954
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
480 #endif
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
481 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
482 // 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
483 if (adr->is_BoxLock())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
484 break;
5954
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
485 // Stored value escapes in unsafe access.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
486 if ((opcode == Op_StoreP) && (adr_type == TypeRawPtr::BOTTOM)) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
487 // Pointer stores in G1 barriers looks like unsafe access.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
488 // 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
489 // allocations.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
490 if (UseG1GC && adr->is_AddP()) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
491 Node* base = get_addp_base(adr);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
492 if (base->Opcode() == Op_LoadP &&
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
493 base->in(MemNode::Address)->is_AddP()) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
494 adr = base->in(MemNode::Address);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
495 Node* tls = get_addp_base(adr);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
496 if (tls->Opcode() == Op_ThreadLocal) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
497 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
498 if (offs == in_bytes(JavaThread::satb_mark_queue_offset() +
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
499 PtrQueue::byte_offset_of_buf())) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
500 break; // G1 pre barier previous oop value store.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
501 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
502 if (offs == in_bytes(JavaThread::dirty_card_queue_offset() +
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
503 PtrQueue::byte_offset_of_buf())) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
504 break; // G1 post barier card address store.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
505 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
506 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
507 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
508 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
509 delayed_worklist->push(n); // Process unsafe access later.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
510 break;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
511 }
5954
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
512 #ifdef ASSERT
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
513 n->dump(1);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
514 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
515 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
516 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
517 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
518 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
519 case Op_AryEq:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
520 case Op_StrComp:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
521 case Op_StrEquals:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
522 case Op_StrIndexOf: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
523 add_local_var(n, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
524 delayed_worklist->push(n); // Process it later.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
525 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
526 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
527 case Op_ThreadLocal: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
528 add_java_object(n, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
529 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
530 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
531 default:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
532 ; // Do nothing for nodes not related to EA.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
533 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
534 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
535 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
536
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
537 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
538 #define ELSE_FAIL(name) \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
539 /* Should not be called for not pointer type. */ \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
540 n->dump(1); \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
541 assert(false, name); \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
542 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
543 #else
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
544 #define ELSE_FAIL(name) \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
545 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
546 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
547
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
548 // Add final simple edges to graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
549 void ConnectionGraph::add_final_edges(Node *n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
550 PointsToNode* n_ptn = ptnode_adr(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
551 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
552 if (_verify && n_ptn->is_JavaObject())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
553 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
554 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
555
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
556 if (n->is_Call()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
557 process_call_arguments(n->as_Call());
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 assert(n->is_Store() || n->is_LoadStore() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
561 (n_ptn != NULL) && (n_ptn->ideal_node() != NULL),
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
562 "node should be registered already");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
563 int opcode = n->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
564 switch (opcode) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
565 case Op_AddP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
566 Node* base = get_addp_base(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
567 PointsToNode* ptn_base = ptnode_adr(base->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
568 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
569 add_base(n_ptn->as_Field(), ptn_base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
570 break;
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 case Op_CastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
573 case Op_CheckCastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
574 case Op_EncodeP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
575 case Op_DecodeN: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
576 add_local_var_and_edge(n, PointsToNode::NoEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
577 n->in(1), NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
578 break;
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 case Op_CMoveP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
581 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
582 Node* in = n->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
583 if (in == NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
584 continue; // ignore NULL
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
585 Node* uncast_in = in->uncast();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
586 if (uncast_in->is_top() || uncast_in == n)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
587 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
588 PointsToNode* ptn = ptnode_adr(in->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
589 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
590 add_edge(n_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
591 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
592 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
593 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
594 case Op_LoadP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
595 case Op_LoadN:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
596 case Op_LoadPLocked: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
597 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
598 // ThreadLocal has RawPtr type.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
599 const Type* t = _igvn->type(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
600 if (t->make_ptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
601 Node* adr = n->in(MemNode::Address);
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, adr, NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
603 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
604 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
605 ELSE_FAIL("Op_LoadP");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
606 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
607 case Op_Phi: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
608 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
609 // ThreadLocal has RawPtr type.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
610 const Type* t = n->as_Phi()->type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
611 if (t->make_ptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
612 for (uint i = 1; i < n->req(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
613 Node* in = n->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
614 if (in == NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
615 continue; // ignore NULL
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
616 Node* uncast_in = in->uncast();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
617 if (uncast_in->is_top() || uncast_in == n)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
618 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
619 PointsToNode* ptn = ptnode_adr(in->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
620 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
621 add_edge(n_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
622 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
623 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
624 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
625 ELSE_FAIL("Op_Phi");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
626 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
627 case Op_Proj: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
628 // 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
629 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
630 n->in(0)->as_Call()->returns_pointer()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
631 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
632 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
633 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
634 ELSE_FAIL("Op_Proj");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
635 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
636 case Op_Rethrow: // Exception object escapes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
637 case Op_Return: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
638 if (n->req() > TypeFunc::Parms &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
639 _igvn->type(n->in(TypeFunc::Parms))->isa_oopptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
640 // 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
641 add_local_var_and_edge(n, PointsToNode::GlobalEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
642 n->in(TypeFunc::Parms), NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
643 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
644 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
645 ELSE_FAIL("Op_Return");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
646 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
647 case Op_StoreP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
648 case Op_StoreN:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
649 case Op_StorePConditional:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
650 case Op_CompareAndSwapP:
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
651 case Op_CompareAndSwapN:
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
652 case Op_GetAndSetP:
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
653 case Op_GetAndSetN: {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
654 Node* adr = n->in(MemNode::Address);
6795
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
655 if (opcode == Op_GetAndSetP || opcode == Op_GetAndSetN) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
656 const Type* t = _igvn->type(n);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
657 if (t->make_ptr() != NULL) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
658 add_local_var_and_edge(n, PointsToNode::NoEscape, adr, NULL);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
659 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement()
roland
parents: 6268
diff changeset
660 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
661 const Type *adr_type = _igvn->type(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
662 adr_type = adr_type->make_ptr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
663 if (adr_type->isa_oopptr() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
664 (opcode == Op_StoreP || opcode == Op_StoreN) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
665 (adr_type == TypeRawPtr::NOTNULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
666 adr->in(AddPNode::Address)->is_Proj() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
667 adr->in(AddPNode::Address)->in(0)->is_Allocate())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
668 // Point Address to Value
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
669 PointsToNode* adr_ptn = ptnode_adr(adr->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
670 assert(adr_ptn != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
671 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
672 Node *val = n->in(MemNode::ValueIn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
673 PointsToNode* ptn = ptnode_adr(val->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
674 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
675 add_edge(adr_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
676 break;
5954
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
677 } else if ((opcode == Op_StoreP) && (adr_type == TypeRawPtr::BOTTOM)) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
678 // Stored value escapes in unsafe access.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
679 Node *val = n->in(MemNode::ValueIn);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
680 PointsToNode* ptn = ptnode_adr(val->_idx);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
681 assert(ptn != NULL, "node should be registered");
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
682 ptn->set_escape_state(PointsToNode::GlobalEscape);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
683 // Add edge to object for unsafe access with offset.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
684 PointsToNode* adr_ptn = ptnode_adr(adr->_idx);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
685 assert(adr_ptn != NULL, "node should be registered");
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
686 if (adr_ptn->is_Field()) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
687 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
688 add_edge(adr_ptn, ptn);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
689 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP
kvn
parents: 5948
diff changeset
690 break;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
691 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
692 ELSE_FAIL("Op_StoreP");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
693 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
694 case Op_AryEq:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
695 case Op_StrComp:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
696 case Op_StrEquals:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
697 case Op_StrIndexOf: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
698 // 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
699 // 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
700 // 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
701 for (uint i = 2; i < n->req(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
702 Node* adr = n->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
703 const Type* at = _igvn->type(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
704 if (!adr->is_top() && at->isa_ptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
705 assert(at == Type::TOP || at == TypePtr::NULL_PTR ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
706 at->isa_ptr() != NULL, "expecting a pointer");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
707 if (adr->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
708 adr = get_addp_base(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
709 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
710 PointsToNode* ptn = ptnode_adr(adr->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
711 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
712 add_edge(n_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
713 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
714 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
715 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
716 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
717 default: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
718 // 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
719 // miss some edges when they were created.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
720 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
721 n->dump(1);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
722 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
723 guarantee(false, "unknown node");
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
726 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
727 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
728
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
729 void ConnectionGraph::add_call_node(CallNode* call) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
730 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
731 uint call_idx = call->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
732 if (call->is_Allocate()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
733 Node* k = call->in(AllocateNode::KlassNode);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
734 const TypeKlassPtr* kt = k->bottom_type()->isa_klassptr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
735 assert(kt != NULL, "TypeKlassPtr required.");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
736 ciKlass* cik = kt->klass();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
737 PointsToNode::EscapeState es = PointsToNode::NoEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
738 bool scalar_replaceable = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
739 if (call->is_AllocateArray()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
740 if (!cik->is_array_klass()) { // StressReflectiveCode
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
741 es = PointsToNode::GlobalEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
742 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
743 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
744 if (length < 0 || length > EliminateAllocationArraySizeLimit) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
745 // 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
746 scalar_replaceable = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
747 }
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 } else { // Allocate instance
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
750 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
751 !cik->is_instance_klass() || // StressReflectiveCode
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
752 cik->as_instance_klass()->has_finalizer()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
753 es = PointsToNode::GlobalEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
754 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
755 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
756 add_java_object(call, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
757 PointsToNode* ptn = ptnode_adr(call_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
758 if (!scalar_replaceable && ptn->scalar_replaceable()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
759 ptn->set_scalar_replaceable(false);
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 } else if (call->is_CallStaticJava()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
762 // Call nodes could be different types:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
763 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
764 // 1. CallDynamicJavaNode (what happened during call is unknown):
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
765 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
766 // - 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
767 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
768 // - all oop arguments are escaping globally;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
769 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
770 // 2. CallStaticJavaNode (execute bytecode analysis if possible):
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
771 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
772 // - 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
773 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
774 // - 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
775 // - 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
776 // during call is returned;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
777 // - 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
778 // 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
779 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
780 // - 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
781 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
782 // 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
783 // 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
784 ciMethod* meth = call->as_CallJava()->method();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
785 if (meth == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
786 const char* name = call->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
787 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
788 // Returns a newly allocated unescaped object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
789 add_java_object(call, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
790 ptnode_adr(call_idx)->set_scalar_replaceable(false);
4122
cc81b9c09bbb 7112478: after 7105605 JRuby bench_define_method_methods.rb fails with NPE
kvn
parents: 4115
diff changeset
791 } else {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
792 BCEscapeAnalyzer* call_analyzer = meth->get_bcea();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
793 call_analyzer->copy_dependencies(_compile->dependencies());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
794 if (call_analyzer->is_return_allocated()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
795 // Returns a newly allocated unescaped object, simply
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
796 // update dependency information.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
797 // 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
798 // 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
799 add_java_object(call, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
800 ptnode_adr(call_idx)->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
801 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
802 // Determine whether any arguments are returned.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
803 const TypeTuple* d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
804 bool ret_arg = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
805 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
806 if (d->field_at(i)->isa_ptr() != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
807 call_analyzer->is_arg_returned(i - TypeFunc::Parms)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
808 ret_arg = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
809 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
810 }
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 if (ret_arg) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
813 add_local_var(call, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
814 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
815 // Returns unknown object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
816 map_ideal_node(call, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
817 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
818 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
819 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
820 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
821 // 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
822 // returned value is unknown and globally escapes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
823 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
824 map_ideal_node(call, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
825 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
826 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
827
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
828 void ConnectionGraph::process_call_arguments(CallNode *call) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
829 bool is_arraycopy = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
830 switch (call->Opcode()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
831 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
832 case Op_Allocate:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
833 case Op_AllocateArray:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
834 case Op_Lock:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
835 case Op_Unlock:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
836 assert(false, "should be done already");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
837 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
838 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
839 case Op_CallLeafNoFP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
840 is_arraycopy = (call->as_CallLeaf()->_name != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
841 strstr(call->as_CallLeaf()->_name, "arraycopy") != 0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
842 // fall through
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
843 case Op_CallLeaf: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
844 // 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
845 // Adjust escape state for outgoing arguments.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
846 const TypeTuple * d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
847 bool src_has_oops = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
848 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
849 const Type* at = d->field_at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
850 Node *arg = call->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
851 const Type *aat = _igvn->type(arg);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
852 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
853 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
854 if (arg->is_AddP()) {
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 // 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
857 // after the allocation before Initialize and CheckCastPP nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
858 // Or normal arraycopy for object arrays case.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
859 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
860 // 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
861 // 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
862 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
863 arg = get_addp_base(arg);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
864 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
865 PointsToNode* arg_ptn = ptnode_adr(arg->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
866 assert(arg_ptn != NULL, "should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
867 PointsToNode::EscapeState arg_esc = arg_ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
868 if (is_arraycopy || arg_esc < PointsToNode::ArgEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
869 assert(aat == Type::TOP || aat == TypePtr::NULL_PTR ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
870 aat->isa_ptr() != NULL, "expecting an Ptr");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
871 bool arg_has_oops = aat->isa_oopptr() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
872 (aat->isa_oopptr()->klass() == NULL || aat->isa_instptr() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
873 (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
874 if (i == TypeFunc::Parms) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
875 src_has_oops = arg_has_oops;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
876 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
877 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
878 // 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
879 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
880 // arraycopy(char[],0,Object*,0,size);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
881 // arraycopy(Object*,0,char[],0,size);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
882 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
883 // Don't add edges in such cases.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
884 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
885 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
886 arg_has_oops && (i > TypeFunc::Parms);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
887 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
888 if (!(is_arraycopy ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
889 call->as_CallLeaf()->_name != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
890 (strcmp(call->as_CallLeaf()->_name, "g1_wb_pre") == 0 ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
891 strcmp(call->as_CallLeaf()->_name, "g1_wb_post") == 0 ))
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
892 ) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
893 call->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
894 assert(false, "EA: unexpected CallLeaf");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
895 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
896 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
897 // Always process arraycopy's destination object since
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
898 // 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
899 // source object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
900 if (arg_esc >= PointsToNode::ArgEscape &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
901 !arg_is_arraycopy_dest) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
902 continue;
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_escape_state(arg_ptn, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
905 if (arg_is_arraycopy_dest) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
906 Node* src = call->in(TypeFunc::Parms);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
907 if (src->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
908 src = get_addp_base(src);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
909 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
910 PointsToNode* src_ptn = ptnode_adr(src->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
911 assert(src_ptn != NULL, "should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
912 if (arg_ptn != src_ptn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
913 // Special arraycopy edge:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
914 // 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
915 // 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
916 // 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
917 // escape state of fields in source object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
918 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
919 }
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
923 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
924 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
925 case Op_CallStaticJava: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
926 // 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
927 // 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
928 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
929 const char* name = call->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
930 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
931 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
932 ciMethod* meth = call->as_CallJava()->method();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
933 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
934 // 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
935 if (call_analyzer != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
936 PointsToNode* call_ptn = ptnode_adr(call->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
937 const TypeTuple* d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
938 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
939 const Type* at = d->field_at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
940 int k = i - TypeFunc::Parms;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
941 Node* arg = call->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
942 PointsToNode* arg_ptn = ptnode_adr(arg->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
943 if (at->isa_ptr() != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
944 call_analyzer->is_arg_returned(k)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
945 // The call returns arguments.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
946 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
947 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
948 assert(arg_ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
949 add_edge(call_ptn, arg_ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
950 }
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 if (at->isa_oopptr() != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
953 arg_ptn->escape_state() < PointsToNode::GlobalEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
954 if (!call_analyzer->is_arg_stack(k)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
955 // The argument global escapes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
956 set_escape_state(arg_ptn, PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
957 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
958 set_escape_state(arg_ptn, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
959 if (!call_analyzer->is_arg_local(k)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
960 // 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
961 set_fields_escape_state(arg_ptn, PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
962 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
963 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
964 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
965 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
966 if (call_ptn != NULL && call_ptn->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
967 // The call returns arguments.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
968 assert(call_ptn->edge_count() > 0, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
969 if (!call_analyzer->is_return_local()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
970 // Returns also unknown object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
971 add_edge(call_ptn, phantom_obj);
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
974 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
975 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
976 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
977 default: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
978 // 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
979 // 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
980 // globally escape.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
981 const TypeTuple* d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
982 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
983 const Type* at = d->field_at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
984 if (at->isa_oopptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
985 Node* arg = call->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
986 if (arg->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
987 arg = get_addp_base(arg);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
988 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
989 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
990 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
991 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
992 }
4122
cc81b9c09bbb 7112478: after 7105605 JRuby bench_define_method_methods.rb fails with NPE
kvn
parents: 4115
diff changeset
993 }
cc81b9c09bbb 7112478: after 7105605 JRuby bench_define_method_methods.rb fails with NPE
kvn
parents: 4115
diff changeset
994 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
995 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
996
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
997
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
998 // Finish Graph construction.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
999 bool ConnectionGraph::complete_connection_graph(
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1000 GrowableArray<PointsToNode*>& ptnodes_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1001 GrowableArray<JavaObjectNode*>& non_escaped_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1002 GrowableArray<JavaObjectNode*>& java_objects_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1003 GrowableArray<FieldNode*>& oop_fields_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1004 // 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
1005 // 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
1006 // 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
1007 // bailout Escape Analysis.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1008 // 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
1009 #define CG_BUILD_ITER_LIMIT 20
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1010 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1011 #define CG_BUILD_TIME_LIMIT 60.0
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1012 #else
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1013 #define CG_BUILD_TIME_LIMIT 30.0
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1014 #endif
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 // 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
1017 // 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
1018 // Field nodes which reference phantom_object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1019 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
1020 return false; // Nothing to do.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1021 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1022 // Now propagate references to all JavaObject nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1023 int java_objects_length = java_objects_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1024 elapsedTimer time;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1025 int new_edges = 1;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1026 int iterations = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1027 do {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1028 while ((new_edges > 0) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1029 (iterations++ < CG_BUILD_ITER_LIMIT) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1030 (time.seconds() < CG_BUILD_TIME_LIMIT)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1031 time.start();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1032 new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1033 // 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
1034 // 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
1035 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
1036 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
1037 JavaObjectNode* ptn = java_objects_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1038 new_edges += add_java_object_edges(ptn, true);
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 if (new_edges > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1041 // 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
1042 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
1043 return false; // Nothing to do.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1044 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1045 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1046 time.stop();
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 if ((iterations < CG_BUILD_ITER_LIMIT) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1049 (time.seconds() < CG_BUILD_TIME_LIMIT)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1050 time.start();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1051 // Find fields which have unknown value.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1052 int fields_length = oop_fields_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1053 for (int next = 0; next < fields_length; next++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1054 FieldNode* field = oop_fields_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1055 if (field->edge_count() == 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1056 new_edges += find_field_value(field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1057 // 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
1058 // 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
1059 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1060 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1061 time.stop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1062 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1063 new_edges = 0; // Bailout
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1064 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1065 } while (new_edges > 0);
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 // Bailout if passed limits.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1068 if ((iterations >= CG_BUILD_ITER_LIMIT) ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1069 (time.seconds() >= CG_BUILD_TIME_LIMIT)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1070 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1071 if (C->log() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1072 C->log()->begin_elem("connectionGraph_bailout reason='reached ");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1073 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
1074 C->log()->end_elem(" limit'");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1075 }
6268
6c5b7a6becc8 7187454: stack overflow in C2 compiler thread on Solaris x86
kvn
parents: 6266
diff changeset
1076 assert(false, 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
1077 time.seconds(), iterations, nodes_size(), ptnodes_worklist.length()));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1078 // Possible infinite build_connection_graph loop,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1079 // bailout (no changes to ideal graph were made).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1080 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1081 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1082 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1083 if (Verbose && PrintEscapeAnalysis) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1084 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
1085 iterations, nodes_size(), ptnodes_worklist.length());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1086 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1087 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1088
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1089 #undef CG_BUILD_ITER_LIMIT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1090 #undef CG_BUILD_TIME_LIMIT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1091
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1092 // 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
1093 int non_escaped_length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1094 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
1095 JavaObjectNode* ptn = non_escaped_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1096 PointsToNode::EscapeState es = ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1097 assert(es <= PointsToNode::ArgEscape, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1098 if (es == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1099 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
1100 // 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
1101 // 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
1102 add_java_object_edges(null_obj, false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1103 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1104 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1105 Node* n = ptn->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1106 if (n->is_Allocate()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1107 // 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
1108 // 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
1109 // expanded no MemBarStoreStore is added.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1110 InitializeNode* ini = n->as_Allocate()->initialization();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1111 if (ini != NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1112 ini->set_does_not_escape();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1113 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1114 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1115 return true; // Finished graph construction.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1116 }
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 // 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
1119 // 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
1120 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
1121 GrowableArray<JavaObjectNode*>& non_escaped_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1122 GrowableArray<PointsToNode*> escape_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1123 // 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
1124 int ptnodes_length = ptnodes_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1125 for (int next = 0; next < ptnodes_length; ++next) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1126 PointsToNode* ptn = ptnodes_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1127 if (ptn->escape_state() >= PointsToNode::ArgEscape ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1128 ptn->fields_escape_state() >= PointsToNode::ArgEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1129 escape_worklist.push(ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1130 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1131 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1132 // Set escape states to referenced nodes (edges list).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1133 while (escape_worklist.length() > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1134 PointsToNode* ptn = escape_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1135 PointsToNode::EscapeState es = ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1136 PointsToNode::EscapeState field_es = ptn->fields_escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1137 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
1138 es >= PointsToNode::ArgEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1139 // 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
1140 if (add_edge(ptn, phantom_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1141 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1142 add_field_uses_to_worklist(ptn->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1143 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1144 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1145 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
1146 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1147 if (e->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1148 assert(ptn->arraycopy_dst(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1149 // Propagate only fields escape state through arraycopy edge.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1150 if (e->fields_escape_state() < field_es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1151 set_fields_escape_state(e, field_es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1152 escape_worklist.push(e);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1153 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1154 } else if (es >= field_es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1155 // 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
1156 if (e->escape_state() < es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1157 set_escape_state(e, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1158 escape_worklist.push(e);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1159 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1160 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1161 // Propagate field escape state.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1162 bool es_changed = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1163 if (e->fields_escape_state() < field_es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1164 set_fields_escape_state(e, field_es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1165 es_changed = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1166 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1167 if ((e->escape_state() < field_es) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1168 e->is_Field() && ptn->is_JavaObject() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1169 e->as_Field()->is_oop()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1170 // Change escape state of referenced fileds.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1171 set_escape_state(e, field_es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1172 es_changed = true;;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1173 } else if (e->escape_state() < es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1174 set_escape_state(e, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1175 es_changed = true;;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1176 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1177 if (es_changed) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1178 escape_worklist.push(e);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1179 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1180 }
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 // Remove escaped objects from non_escaped list.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1184 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
1185 JavaObjectNode* ptn = non_escaped_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1186 if (ptn->escape_state() >= PointsToNode::GlobalEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1187 non_escaped_worklist.delete_at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1188 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1189 if (ptn->escape_state() == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1190 // 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
1191 find_init_values(ptn, phantom_obj, NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1192 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1193 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1194 return (non_escaped_worklist.length() > 0);
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
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1197 // 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
1198 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
1199 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1200 if (populate_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1201 // Populate _worklist by uses of jobj's uses.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1202 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
1203 PointsToNode* use = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1204 if (use->is_Arraycopy())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1205 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1206 add_uses_to_worklist(use);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1207 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
1208 // 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
1209 // related field nodes (same base and offset).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1210 add_field_uses_to_worklist(use->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1211 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1212 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1213 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1214 while(_worklist.length() > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1215 PointsToNode* use = _worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1216 if (PointsToNode::is_base_use(use)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1217 // 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
1218 use = PointsToNode::get_use_node(use)->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1219 if (add_base(use->as_Field(), jobj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1220 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1221 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1222 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1223 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1224 assert(!use->is_JavaObject(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1225 if (use->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1226 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
1227 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1228 // 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
1229 if (add_edge(use, jobj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1230 jobj->set_arraycopy_src();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1231 new_edges++;
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 // and stop here.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1234 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1235 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1236 if (!add_edge(use, jobj))
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1237 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
1238 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1239 if (use->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1240 add_uses_to_worklist(use);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1241 if (use->arraycopy_dst()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1242 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
1243 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1244 if (e->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1245 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
1246 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1247 // 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
1248 if (add_edge(jobj, e)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1249 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1250 jobj->set_arraycopy_dst();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1251 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1252 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1253 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1254 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1255 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1256 // Added new edge to stored in field values.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1257 // 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
1258 // related field nodes (same base and offset).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1259 add_field_uses_to_worklist(use->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1260 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1261 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1262 return new_edges;
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 // Put on worklist all related field nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1266 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
1267 assert(field->is_oop(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1268 int offset = field->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1269 add_uses_to_worklist(field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1270 // 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
1271 // 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
1272 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
1273 PointsToNode* base = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1274 add_fields_to_worklist(field, base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1275 // 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
1276 // 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
1277 // 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
1278 if (base->arraycopy_src()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1279 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
1280 PointsToNode* arycp = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1281 if (arycp->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1282 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
1283 PointsToNode* abase = k.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1284 if (abase->arraycopy_dst() && abase != base) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1285 // Look for the same arracopy reference.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1286 add_fields_to_worklist(field, abase);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1287 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1288 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1289 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1290 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1291 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1292 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1293 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1294
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1295 // Put on worklist all related field nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1296 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
1297 int offset = field->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1298 if (base->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1299 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
1300 PointsToNode* f = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1301 if (PointsToNode::is_base_use(f)) { // Field
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1302 f = PointsToNode::get_use_node(f);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1303 if (f == field || !f->as_Field()->is_oop())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1304 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1305 int offs = f->as_Field()->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1306 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
1307 add_to_worklist(f);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1308 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1309 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1310 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1311 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1312 assert(base->is_JavaObject(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1313 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
1314 // this field's content globally escapes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1315 (base != phantom_obj) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1316 // NULL object node does not have fields.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1317 (base != null_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1318 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
1319 PointsToNode* f = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1320 // 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
1321 // does not update value in source object field.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1322 if (f->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1323 assert(base->arraycopy_dst(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1324 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1325 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1326 if (f == field || !f->as_Field()->is_oop())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1327 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1328 int offs = f->as_Field()->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1329 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
1330 add_to_worklist(f);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1331 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1332 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1333 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1334 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1335 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1336
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1337 // Find fields which have unknown value.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1338 int ConnectionGraph::find_field_value(FieldNode* field) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1339 // Escaped fields should have init value already.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1340 assert(field->escape_state() == PointsToNode::NoEscape, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1341 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1342 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
1343 PointsToNode* base = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1344 if (base->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1345 // 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
1346 if (base->ideal_node()->is_Allocate())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1347 return 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1348 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
1349 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1350 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1351 if (add_edge(field, phantom_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1352 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1353 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1354 add_field_uses_to_worklist(field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1355 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1356 return new_edges;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1357 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1358
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1359 // Find fields initializing values for allocations.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1360 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
1361 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
1362 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1363 Node* alloc = pta->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1364 if (init_val == phantom_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1365 // 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
1366 if (alloc->is_Allocate())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1367 return 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1368 assert(alloc->as_CallStaticJava(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1369 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1370 if (alloc->as_CallStaticJava()->method() == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1371 const char* name = alloc->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1372 assert(strncmp(name, "_multianewarray", 15) == 0, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1373 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1374 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1375 // 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
1376 // unknown values in fields.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1377 for (EdgeIterator i(pta); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1378 PointsToNode* ptn = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1379 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
1380 if (add_edge(ptn, phantom_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1381 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1382 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1383 add_field_uses_to_worklist(ptn->as_Field());
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 return new_edges;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1388 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1389 assert(init_val == null_obj, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1390 // 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
1391 if (!alloc->is_Allocate())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1392 return 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1393
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1394 InitializeNode* ini = alloc->as_Allocate()->initialization();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1395 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1396 bool visited_bottom_offset = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1397 GrowableArray<int> offsets_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1398
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1399 // 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
1400 // 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
1401 // 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
1402 // captured by Initialize node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1403 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1404 for (EdgeIterator i(pta); i.has_next(); i.next()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1405 PointsToNode* ptn = i.get(); // Field (AddP)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1406 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
1407 continue; // Not oop field
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1408 int offset = ptn->as_Field()->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1409 if (offset == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1410 if (!visited_bottom_offset) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1411 // OffsetBot is used to reference array's element,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1412 // 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
1413 // known which element is referenced.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1414 if (add_edge(ptn, null_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1415 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1416 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1417 add_field_uses_to_worklist(ptn->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1418 visited_bottom_offset = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1419 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1420 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1421 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1422 // Check only oop fields.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1423 const Type* adr_type = ptn->ideal_node()->as_AddP()->bottom_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1424 if (adr_type->isa_rawptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1425 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1426 // 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
1427 // since it should be recorded already
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1428 Node* base = get_addp_base(ptn->ideal_node());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1429 assert(adr_type->isa_rawptr() && base->is_Proj() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1430 (base->in(0) == alloc),"unexpected pointer type");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1431 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1432 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1433 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1434 if (!offsets_worklist.contains(offset)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1435 offsets_worklist.append(offset);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1436 Node* value = NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1437 if (ini != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1438 BasicType ft = UseCompressedOops ? T_NARROWOOP : T_OBJECT;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1439 Node* store = ini->find_captured_store(offset, type2aelembytes(ft), phase);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1440 if (store != NULL && store->is_Store()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1441 value = store->in(MemNode::ValueIn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1442 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1443 // There could be initializing stores which follow allocation.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1444 // 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
1445 // by Initialize node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1446 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1447 // 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
1448 // 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
1449 // that compare pointers optimization works correctly.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1450 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1451 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1452 if (value == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1453 // A field's initializing value was not recorded. Add NULL.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1454 if (add_edge(ptn, null_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1455 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1456 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1457 add_field_uses_to_worklist(ptn->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1458 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1459 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1460 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1461 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1462 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1463 return new_edges;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1464 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1465
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1466 // 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
1467 void ConnectionGraph::adjust_scalar_replaceable_state(JavaObjectNode* jobj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1468 // 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
1469 // 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
1470
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1471 // 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
1472 // 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
1473 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1474 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
1475 PointsToNode* use = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1476 assert(!use->is_Arraycopy(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1477 if (use->is_Field()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1478 FieldNode* field = use->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1479 assert(field->is_oop() && field->scalar_replaceable() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1480 field->fields_escape_state() == PointsToNode::NoEscape, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1481 if (field->offset() == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1482 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1483 return;
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1486 assert(use->is_Field() || use->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1487 // 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
1488 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
1489 PointsToNode* ptn = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1490 if (ptn->is_JavaObject() && ptn != jobj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1491 // Mark all objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1492 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1493 ptn->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1494 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1495 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1496 if (!jobj->scalar_replaceable()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1497 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1498 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1499 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1500
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1501 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
1502 // 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
1503 FieldNode* field = j.get()->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1504 int offset = field->as_Field()->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1505
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1506 // 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
1507 // offset (array's element is accessed in loop).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1508 if (offset == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1509 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1510 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1511 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1512 // 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
1513 // 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
1514 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1515 Node* n = field->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1516 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
1517 if (n->fast_out(i)->is_LoadStore()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1518 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1519 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1520 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1521 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1522
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1523 // 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
1524 // the false positive result (set not scalar replaceable)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1525 // 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
1526 // 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
1527 // when stores happened on different control branches.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1528 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1529 // 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
1530 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1531 // Point p[] = new Point[1];
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1532 // 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
1533 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1534 // 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
1535 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1536 // Point p[] = new Point[1];
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1537 // 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
1538 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1539 if (field->base_count() > 1) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1540 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
1541 PointsToNode* base = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1542 // Don't take into account LocalVar nodes which
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1543 // 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
1544 // this field's base by now.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1545 if (base->is_JavaObject() && base != jobj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1546 // Mark all bases.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1547 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1548 base->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1549 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1550 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1551 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1552 }
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 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1556 void ConnectionGraph::verify_connection_graph(
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1557 GrowableArray<PointsToNode*>& ptnodes_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1558 GrowableArray<JavaObjectNode*>& non_escaped_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1559 GrowableArray<JavaObjectNode*>& java_objects_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1560 GrowableArray<Node*>& addp_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1561 // 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
1562 int java_objects_length = java_objects_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1563 int non_escaped_length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1564 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1565 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
1566 JavaObjectNode* ptn = java_objects_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1567 new_edges += add_java_object_edges(ptn, true);
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 assert(new_edges == 0, "graph was not complete");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1570 // Verify that escape state is final.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1571 int length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1572 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
1573 assert((non_escaped_length == non_escaped_worklist.length()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1574 (non_escaped_length == length) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1575 (_worklist.length() == 0), "escape state was not final");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1576
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1577 // Verify fields information.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1578 int addp_length = addp_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1579 for (int next = 0; next < addp_length; ++next ) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1580 Node* n = addp_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1581 FieldNode* field = ptnode_adr(n->_idx)->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1582 if (field->is_oop()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1583 // Verify that field has all bases
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1584 Node* base = get_addp_base(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1585 PointsToNode* ptn = ptnode_adr(base->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1586 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1587 assert(field->has_base(ptn->as_JavaObject()), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1588 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1589 assert(ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1590 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
1591 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1592 if (e->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1593 assert(field->has_base(e->as_JavaObject()), "sanity");
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1597 // Verify that all fields have initializing values.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1598 if (field->edge_count() == 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1599 field->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1600 assert(field->edge_count() > 0, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1601 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1602 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1603 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1604 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1605 #endif
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 // Optimize ideal graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1608 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
1609 GrowableArray<Node*>& storestore_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1610 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1611 PhaseIterGVN* igvn = _igvn;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1612 if (EliminateLocks) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1613 // Mark locks before changing ideal graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1614 int cnt = C->macro_count();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1615 for( int i=0; i < cnt; i++ ) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1616 Node *n = C->macro_node(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1617 if (n->is_AbstractLock()) { // Lock and Unlock nodes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1618 AbstractLockNode* alock = n->as_AbstractLock();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1619 if (!alock->is_non_esc_obj()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1620 if (not_global_escape(alock->obj_node())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1621 assert(!alock->is_eliminated() || alock->is_coarsened(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1622 // 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
1623 // 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
1624 // to eliminate all associated locks/unlocks.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1625 alock->set_non_esc_obj();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1626 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1627 }
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 }
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
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1632 if (OptimizePtrCompare) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1633 // Add ConI(#CC_GT) and ConI(#CC_EQ).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1634 _pcmp_neq = igvn->makecon(TypeInt::CC_GT);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1635 _pcmp_eq = igvn->makecon(TypeInt::CC_EQ);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1636 // Optimize objects compare.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1637 while (ptr_cmp_worklist.length() != 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1638 Node *n = ptr_cmp_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1639 Node *res = optimize_ptr_compare(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1640 if (res != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1641 #ifndef PRODUCT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1642 if (PrintOptimizePtrCompare) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1643 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
1644 if (Verbose) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1645 n->dump(1);
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 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1649 igvn->replace_node(n, res);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1650 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1651 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1652 // cleanup
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1653 if (_pcmp_neq->outcnt() == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1654 igvn->hash_delete(_pcmp_neq);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1655 if (_pcmp_eq->outcnt() == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1656 igvn->hash_delete(_pcmp_eq);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1657 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1658
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1659 // 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
1660 // escape status of associated AllocateNode and optimize out
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1661 // MemBarStoreStore node if the allocated object never escapes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1662 while (storestore_worklist.length() != 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1663 Node *n = storestore_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1664 MemBarStoreStoreNode *storestore = n ->as_MemBarStoreStore();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1665 Node *alloc = storestore->in(MemBarNode::Precedent)->in(0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1666 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
1667 if (not_global_escape(alloc)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1668 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
1669 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
1670 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
1671 igvn->register_new_node_with_optimizer(mb);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1672 igvn->replace_node(storestore, mb);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1673 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1674 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1675 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1676
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1677 // Optimize objects compare.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1678 Node* ConnectionGraph::optimize_ptr_compare(Node* n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1679 assert(OptimizePtrCompare, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1680 PointsToNode* ptn1 = ptnode_adr(n->in(1)->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1681 PointsToNode* ptn2 = ptnode_adr(n->in(2)->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1682 JavaObjectNode* jobj1 = unique_java_object(n->in(1));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1683 JavaObjectNode* jobj2 = unique_java_object(n->in(2));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1684 assert(ptn1->is_JavaObject() || ptn1->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1685 assert(ptn2->is_JavaObject() || ptn2->is_LocalVar(), "sanity");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1686
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1687 // Check simple cases first.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1688 if (jobj1 != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1689 if (jobj1->escape_state() == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1690 if (jobj1 == jobj2) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1691 // Comparing the same not escaping object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1692 return _pcmp_eq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1693 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1694 Node* obj = jobj1->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1695 // Comparing not escaping allocation.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1696 if ((obj->is_Allocate() || obj->is_CallStaticJava()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1697 !ptn2->points_to(jobj1)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1698 return _pcmp_neq; // This includes nullness check.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1699 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1700 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1701 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1702 if (jobj2 != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1703 if (jobj2->escape_state() == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1704 Node* obj = jobj2->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1705 // Comparing not escaping allocation.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1706 if ((obj->is_Allocate() || obj->is_CallStaticJava()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1707 !ptn1->points_to(jobj2)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1708 return _pcmp_neq; // This includes nullness check.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1709 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1710 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1711 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1712 if (jobj1 != NULL && jobj1 != phantom_obj &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1713 jobj2 != NULL && jobj2 != phantom_obj &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1714 jobj1->ideal_node()->is_Con() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1715 jobj2->ideal_node()->is_Con()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1716 // 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
1717 // compressed pointers - compare types of ConN and ConP instead of nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1718 const Type* t1 = jobj1->ideal_node()->bottom_type()->make_ptr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1719 const Type* t2 = jobj2->ideal_node()->bottom_type()->make_ptr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1720 assert(t1 != NULL && t2 != NULL, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1721 if (t1->make_ptr() == t2->make_ptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1722 return _pcmp_eq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1723 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1724 return _pcmp_neq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1725 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1726 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1727 if (ptn1->meet(ptn2)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1728 return NULL; // Sets are not disjoint
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1729 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1730
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1731 // Sets are disjoint.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1732 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
1733 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
1734 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
1735 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
1736 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
1737 set2_has_unknown_ptr && set1_has_null_ptr) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1738 // Check nullness of unknown object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1739 return NULL;
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 // Disjointness by itself is not sufficient since
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1743 // alias analysis is not complete for escaped objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1744 // Disjoint sets are definitely unrelated only when
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1745 // 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
1746 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
1747 if (ptn1->non_escaping_allocation()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1748 return _pcmp_neq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1749 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1750 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1751 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
1752 if (ptn2->non_escaping_allocation()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1753 return _pcmp_neq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1754 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1755 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1756 return NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1757 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1758
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1759 // Connection Graph constuction functions.
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 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
1762 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1763 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1764 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
1765 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1766 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1767 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1768 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
1769 _nodes.at_put(n->_idx, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1770 }
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 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
1773 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1774 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1775 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
1776 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1777 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1778 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1779 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
1780 _nodes.at_put(n->_idx, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1781 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1782
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1783 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
1784 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1785 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1786 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
1787 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1788 }
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1789 bool unsafe = false;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1790 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
1791 if (unsafe) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1792 es = PointsToNode::GlobalEscape;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1793 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1794 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1795 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
1796 _nodes.at_put(n->_idx, field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1797 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1798
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1799 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
1800 PointsToNode* src, PointsToNode* dst) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1801 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
1802 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
1803 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1804 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1805 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
1806 return;
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 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1809 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
1810 _nodes.at_put(n->_idx, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1811 // Add edge from arraycopy node to source object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1812 (void)add_edge(ptadr, src);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1813 src->set_arraycopy_src();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1814 // Add edge from destination object to arraycopy node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1815 (void)add_edge(dst, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1816 dst->set_arraycopy_dst();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1817 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1818
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1819 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
1820 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
1821 BasicType bt = T_INT;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1822 if (offset == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1823 // Check only oop fields.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1824 if (!adr_type->isa_aryptr() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1825 (adr_type->isa_aryptr()->klass() == NULL) ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1826 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
1827 // 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
1828 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
1829 bt = T_OBJECT;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1830 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1831 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1832 } else if (offset != oopDesc::klass_offset_in_bytes()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1833 if (adr_type->isa_instptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1834 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
1835 if (field != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1836 bt = field->layout_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1837 } else {
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1838 // 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
1839 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
1840 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
1841 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
1842 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
1843 bt = T_OBJECT;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1844 (*unsafe) = true;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1845 break;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1846 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1847 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1848 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1849 } else if (adr_type->isa_aryptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1850 if (offset == arrayOopDesc::length_offset_in_bytes()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1851 // Ignore array length load.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1852 } 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
1853 // Ignore first AddP.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1854 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1855 const Type* elemtype = adr_type->isa_aryptr()->elem();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1856 bt = elemtype->array_element_basic_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1857 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1858 } 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
1859 // Allocation initialization, ThreadLocal field access, unsafe access
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1860 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
1861 int opcode = n->fast_out(i)->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1862 if (opcode == Op_StoreP || opcode == Op_LoadP ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1863 opcode == Op_StoreN || opcode == Op_LoadN) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1864 bt = T_OBJECT;
6266
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 5954
diff changeset
1865 break;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1866 }
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1870 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
1871 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1872
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1873 // Returns unique pointed java object or NULL.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1874 JavaObjectNode* ConnectionGraph::unique_java_object(Node *n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1875 assert(!_collecting, "should not call when contructed graph");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1876 // 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
1877 uint idx = n->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1878 if (idx >= nodes_size()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1879 return NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1880 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1881 PointsToNode* ptn = ptnode_adr(idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1882 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1883 return ptn->as_JavaObject();
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 assert(ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1886 // Check all java objects it points to.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1887 JavaObjectNode* jobj = NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1888 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
1889 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1890 if (e->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1891 if (jobj == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1892 jobj = e->as_JavaObject();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1893 } else if (jobj != e) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1894 return NULL;
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1897 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1898 return jobj;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1899 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1900
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1901 // 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
1902 bool PointsToNode::non_escaping_allocation() {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1903 if (is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1904 Node* n = ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1905 if (n->is_Allocate() || n->is_CallStaticJava()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1906 return (escape_state() == PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1907 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1908 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1909 }
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 assert(is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1912 // Check all java objects it points to.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1913 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
1914 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1915 if (e->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1916 Node* n = e->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1917 if ((e->escape_state() != PointsToNode::NoEscape) ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1918 !(n->is_Allocate() || n->is_CallStaticJava())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1919 return false;
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1922 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1923 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1924 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1925
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1926 // 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
1927 bool ConnectionGraph::not_global_escape(Node *n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1928 assert(!_collecting, "should not call during graph construction");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1929 // 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
1930 uint idx = n->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1931 if (idx >= nodes_size()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1932 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1933 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1934 PointsToNode* ptn = ptnode_adr(idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1935 PointsToNode::EscapeState es = ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1936 // 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
1937 if (es >= PointsToNode::GlobalEscape)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1938 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1939 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1940 return true; // (es < PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1941 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1942 assert(ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1943 // Check all java objects it points to.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1944 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
1945 if (i.get()->escape_state() >= PointsToNode::GlobalEscape)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1946 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1947 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1948 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1949 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1950
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1951
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1952 // Helper functions
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1953
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1954 // 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
1955 bool PointsToNode::points_to(JavaObjectNode* ptn) const {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1956 if (is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1957 return (this == ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1958 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1959 assert(is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1960 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
1961 if (i.get() == ptn)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1962 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1963 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1964 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1965 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1966
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1967 // 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
1968 bool PointsToNode::meet(PointsToNode* ptn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1969 if (this == ptn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1970 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1971 } else if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1972 return this->points_to(ptn->as_JavaObject());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1973 } else if (this->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1974 return ptn->points_to(this->as_JavaObject());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1975 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1976 assert(this->is_LocalVar() && ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1977 int ptn_count = ptn->edge_count();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1978 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
1979 PointsToNode* this_e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1980 for (int j = 0; j < ptn_count; j++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1981 if (this_e == ptn->edge(j))
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1982 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1983 }
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 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1986 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1987
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1988 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1989 // 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
1990 bool FieldNode::has_base(JavaObjectNode* jobj) const {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1991 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
1992 if (i.get() == jobj)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1993 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1994 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1995 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1996 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1997 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
1998
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
1999 int ConnectionGraph::address_offset(Node* adr, PhaseTransform *phase) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2000 const Type *adr_type = phase->type(adr);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2001 if (adr->is_AddP() && adr_type->isa_oopptr() == NULL &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2002 adr->in(AddPNode::Address)->is_Proj() &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2003 adr->in(AddPNode::Address)->in(0)->is_Allocate()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2004 // 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
2005 // 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
2006 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
2007 assert(offs != Type::OffsetBot ||
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2008 adr->in(AddPNode::Address)->in(0)->is_AllocateArray(),
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2009 "offset must be a constant or it is initialization of array");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2010 return offs;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2011 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2012 const TypePtr *t_ptr = adr_type->isa_ptr();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2013 assert(t_ptr != NULL, "must be a pointer type");
a61af66fc99e Initial load
duke
parents:
diff changeset
2014 return t_ptr->offset();
a61af66fc99e Initial load
duke
parents:
diff changeset
2015 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2016
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2017 Node* ConnectionGraph::get_addp_base(Node *addp) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2018 assert(addp->is_AddP(), "must be AddP");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2019 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2020 // AddP cases for Base and Address inputs:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2021 // case #1. Direct object's field reference:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2022 // Allocate
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2023 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2024 // Proj #5 ( oop result )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2025 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2026 // CheckCastPP (cast to instance type)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2027 // | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2028 // AddP ( base == address )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2029 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2030 // case #2. Indirect object's field reference:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2031 // Phi
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2032 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2033 // CastPP (cast to instance type)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2034 // | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2035 // AddP ( base == address )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2036 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2037 // case #3. Raw object's field reference for Initialize node:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2038 // Allocate
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2039 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2040 // Proj #5 ( oop result )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2041 // top |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2042 // \ |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2043 // AddP ( base == top )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2044 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2045 // case #4. Array's element reference:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2046 // {CheckCastPP | CastPP}
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2047 // | | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2048 // | AddP ( array's element offset )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2049 // | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2050 // AddP ( array's offset )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2051 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2052 // case #5. Raw object's field reference for arraycopy stub call:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2053 // The inline_native_clone() case when the arraycopy stub is called
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2054 // after the allocation before Initialize and CheckCastPP nodes.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2055 // Allocate
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2056 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2057 // Proj #5 ( oop result )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2058 // | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2059 // AddP ( base == address )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2060 //
77
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2061 // case #6. Constant Pool, ThreadLocal, CastX2P or
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2062 // Raw object's field reference:
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2063 // {ConP, ThreadLocal, CastX2P, raw Load}
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2064 // top |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2065 // \ |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2066 // AddP ( base == top )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2067 //
77
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2068 // case #7. Klass's field reference.
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2069 // LoadKlass
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2070 // | |
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2071 // AddP ( base == address )
36cd3cc4d27b 6679854: assert in escape.cpp:397
kvn
parents: 65
diff changeset
2072 //
164
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2073 // 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
2074 // LoadNKlass
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2075 // |
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2076 // DecodeN
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2077 // | |
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2078 // AddP ( base == address )
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents: 163
diff changeset
2079 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2080 Node *base = addp->in(AddPNode::Base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2081 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
2082 base = addp->in(AddPNode::Address);
957
159d56b94894 6880574: C2 assert in escape.cpp:445 on linux-amd64
kvn
parents: 866
diff changeset
2083 while (base->is_AddP()) {
159d56b94894 6880574: C2 assert in escape.cpp:445 on linux-amd64
kvn
parents: 866
diff changeset
2084 // 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
2085 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
2086 base = base->in(AddPNode::Address);
957
159d56b94894 6880574: C2 assert in escape.cpp:445 on linux-amd64
kvn
parents: 866
diff changeset
2087 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2088 Node* uncast_base = base->uncast();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2089 int opcode = uncast_base->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2090 assert(opcode == Op_ConP || opcode == Op_ThreadLocal ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2091 opcode == Op_CastX2P || uncast_base->is_DecodeN() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2092 (uncast_base->is_Mem() && uncast_base->bottom_type() == TypeRawPtr::NOTNULL) ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2093 (uncast_base->is_Proj() && uncast_base->in(0)->is_Allocate()), "sanity");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2094 }
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2095 return base;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2096 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2097
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2098 Node* ConnectionGraph::find_second_addp(Node* addp, Node* n) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2099 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
2100 Node* addp2 = addp->raw_out(0);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2101 if (addp->outcnt() == 1 && addp2->is_AddP() &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2102 addp2->in(AddPNode::Base) == n &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2103 addp2->in(AddPNode::Address) == addp) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2104 assert(addp->in(AddPNode::Base) == n, "expecting the same base");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2105 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2106 // Find array's offset to push it on worklist first and
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2107 // as result process an array's element offset first (pushed second)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2108 // to avoid CastPP for the array's offset.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2109 // Otherwise the inserted CastPP (LocalVar) will point to what
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2110 // the AddP (Field) points to. Which would be wrong since
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2111 // the algorithm expects the CastPP has the same point as
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2112 // as AddP's base CheckCastPP (LocalVar).
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2113 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2114 // ArrayAllocation
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2115 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2116 // CheckCastPP
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2117 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2118 // memProj (from ArrayAllocation CheckCastPP)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2119 // | ||
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2120 // | || Int (element index)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2121 // | || | ConI (log(element size))
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2122 // | || | /
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2123 // | || LShift
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 // | AddP (array's element offset)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2126 // | |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2127 // | | ConI (array's offset: #12(32-bits) or #24(64-bits))
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2128 // | / /
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2129 // AddP (array's offset)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2130 // |
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2131 // Load/Store (memory operation on array's element)
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 return addp2;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2134 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2135 return NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2136 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2137
a61af66fc99e Initial load
duke
parents:
diff changeset
2138 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2139 // Adjust the type and inputs of an AddP which computes the
a61af66fc99e Initial load
duke
parents:
diff changeset
2140 // address of a field of an instance
a61af66fc99e Initial load
duke
parents:
diff changeset
2141 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2142 bool ConnectionGraph::split_AddP(Node *addp, Node *base) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2143 PhaseGVN* igvn = _igvn;
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2144 const TypeOopPtr *base_t = igvn->type(base)->isa_oopptr();
223
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2145 assert(base_t != NULL && base_t->is_known_instance(), "expecting instance oopptr");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2146 const TypeOopPtr *t = igvn->type(addp)->isa_oopptr();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2147 if (t == NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2148 // 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
2149 // compute an appropriate address type (cases #3 and #5).
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2150 assert(igvn->type(addp) == TypeRawPtr::NOTNULL, "must be raw pointer");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2151 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
2152 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
2153 assert(offs != Type::OffsetBot, "offset must be a constant");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2154 t = base_t->add_offset(offs)->is_oopptr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2155 }
223
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2156 int inst_id = base_t->instance_id();
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2157 assert(!t->is_known_instance() || t->instance_id() == inst_id,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2158 "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
2159
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2160 // 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
2161 // 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
2162 // 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
2163 // 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
2164 //
605
98cb887364d3 6810672: Comment typos
twisti
parents: 584
diff changeset
2165 // 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
2166 // 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
2167 // 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
2168 //
988
7e309ecb83ce 6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents: 957
diff changeset
2169 // 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
2170 // 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
2171 // (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
2172 //
293
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2173 // 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
2174 // 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
2175 //
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2176 if (!t->is_known_instance() &&
988
7e309ecb83ce 6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents: 957
diff changeset
2177 !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
2178 return false; // bail out
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents: 253
diff changeset
2179 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2180 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
2181 // 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
2182 // 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
2183 // has side effect.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2184 int alias_idx = _compile->get_alias_index(tinst);
a61af66fc99e Initial load
duke
parents:
diff changeset
2185 igvn->set_type(addp, tinst);
a61af66fc99e Initial load
duke
parents:
diff changeset
2186 // record the allocation in the node map
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2187 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
2188 // 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
2189 Node *abase = addp->in(AddPNode::Base);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2190 Node *adr = addp->in(AddPNode::Address);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2191 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
2192 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
2193 // Skip AddP cases #3 and #5.
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2194 } else {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2195 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
2196 if (abase != base) {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2197 igvn->hash_delete(addp);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2198 addp->set_req(AddPNode::Base, base);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2199 if (abase == adr) {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2200 addp->set_req(AddPNode::Address, base);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2201 } else {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2202 // 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
2203 #ifdef ASSERT
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2204 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
2205 assert(adr->is_AddP() && atype != NULL &&
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2206 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
2207 #endif
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2208 }
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2209 igvn->hash_insert(addp);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2210 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2211 }
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2212 // 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
2213 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
2214 return true;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2215 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2216
a61af66fc99e Initial load
duke
parents:
diff changeset
2217 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2218 // 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
2219 // created phi or an existing phi. Sets create_new to indicate whether a new
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2220 // phi was created. Cache the last newly created phi in the node map.
a61af66fc99e Initial load
duke
parents:
diff changeset
2221 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2222 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
2223 Compile *C = _compile;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2224 PhaseGVN* igvn = _igvn;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2225 new_created = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2226 int phi_alias_idx = C->get_alias_index(orig_phi->adr_type());
a61af66fc99e Initial load
duke
parents:
diff changeset
2227 // 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
2228 if (phi_alias_idx == alias_idx) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2229 return orig_phi;
a61af66fc99e Initial load
duke
parents:
diff changeset
2230 }
851
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2231 // Have we recently created a Phi for this alias index?
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2232 PhiNode *result = get_map_phi(orig_phi->_idx);
a61af66fc99e Initial load
duke
parents:
diff changeset
2233 if (result != NULL && C->get_alias_index(result->adr_type()) == alias_idx) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2234 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
2235 }
851
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2236 // 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
2237 // 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
2238 if (result != NULL) {
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2239 Node* region = orig_phi->in(0);
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2240 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
2241 Node* phi = region->fast_out(i);
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2242 if (phi->is_Phi() &&
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2243 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
2244 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
2245 return phi->as_Phi();
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2246 }
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2247 }
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents: 784
diff changeset
2248 }
38
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2249 if ((int)C->unique() + 2*NodeLimitFudgeFactor > MaxNodeLimit) {
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2250 if (C->do_escape_analysis() == true && !C->failing()) {
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2251 // Retry compilation without escape analysis.
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2252 // 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
2253 // 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
2254 C->record_failure(C2Compiler::retry_no_escape_analysis());
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2255 }
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2256 return NULL;
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2257 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2258 orig_phi_worklist.append_if_missing(orig_phi);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2259 const TypePtr *atype = C->get_adr_type(alias_idx);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2260 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
2261 C->copy_node_notes_to(result, orig_phi);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2262 igvn->set_type(result, result->bottom_type());
a61af66fc99e Initial load
duke
parents:
diff changeset
2263 record_for_optimizer(result);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2264 set_map(orig_phi, result);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2265 new_created = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
2266 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
2267 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2268
a61af66fc99e Initial load
duke
parents:
diff changeset
2269 //
2459
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2270 // Return a new version of Memory Phi "orig_phi" with the inputs having the
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2271 // specified alias index.
a61af66fc99e Initial load
duke
parents:
diff changeset
2272 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2273 PhiNode *ConnectionGraph::split_memory_phi(PhiNode *orig_phi, int alias_idx, GrowableArray<PhiNode *> &orig_phi_worklist) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2274 assert(alias_idx != Compile::AliasIdxBot, "can't split out bottom memory");
a61af66fc99e Initial load
duke
parents:
diff changeset
2275 Compile *C = _compile;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2276 PhaseGVN* igvn = _igvn;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2277 bool new_phi_created;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2278 PhiNode *result = create_split_phi(orig_phi, alias_idx, orig_phi_worklist, new_phi_created);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2279 if (!new_phi_created) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2280 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
2281 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2282 GrowableArray<PhiNode *> phi_list;
a61af66fc99e Initial load
duke
parents:
diff changeset
2283 GrowableArray<uint> cur_input;
a61af66fc99e Initial load
duke
parents:
diff changeset
2284 PhiNode *phi = orig_phi;
a61af66fc99e Initial load
duke
parents:
diff changeset
2285 uint idx = 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
2286 bool finished = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2287 while(!finished) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2288 while (idx < phi->req()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2289 Node *mem = find_inst_mem(phi->in(idx), alias_idx, orig_phi_worklist);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2290 if (mem != NULL && mem->is_Phi()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2291 PhiNode *newphi = create_split_phi(mem->as_Phi(), alias_idx, orig_phi_worklist, new_phi_created);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2292 if (new_phi_created) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2293 // found an phi for which we created a new split, push current one on worklist and begin
a61af66fc99e Initial load
duke
parents:
diff changeset
2294 // processing new one
a61af66fc99e Initial load
duke
parents:
diff changeset
2295 phi_list.push(phi);
a61af66fc99e Initial load
duke
parents:
diff changeset
2296 cur_input.push(idx);
a61af66fc99e Initial load
duke
parents:
diff changeset
2297 phi = mem->as_Phi();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2298 result = newphi;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2299 idx = 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
2300 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
2301 } else {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2302 mem = newphi;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2303 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2304 }
38
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2305 if (C->failing()) {
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2306 return NULL;
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2307 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2308 result->set_req(idx++, mem);
a61af66fc99e Initial load
duke
parents:
diff changeset
2309 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2310 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
2311 // verify that the new Phi has an input for each input of the original
a61af66fc99e Initial load
duke
parents:
diff changeset
2312 assert( phi->req() == result->req(), "must have same number of inputs.");
a61af66fc99e Initial load
duke
parents:
diff changeset
2313 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
2314 #endif
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2315 // Check if all new phi's inputs have specified alias index.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2316 // Otherwise use old phi.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2317 for (uint i = 1; i < phi->req(); i++) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2318 Node* in = result->in(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2319 assert((phi->in(i) == NULL) == (in == NULL), "inputs must correspond.");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2320 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2321 // we have finished processing a Phi, see if there are any more to do
a61af66fc99e Initial load
duke
parents:
diff changeset
2322 finished = (phi_list.length() == 0 );
a61af66fc99e Initial load
duke
parents:
diff changeset
2323 if (!finished) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2324 phi = phi_list.pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
2325 idx = cur_input.pop();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2326 PhiNode *prev_result = get_map_phi(phi->_idx);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2327 prev_result->set_req(idx++, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2328 result = prev_result;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2329 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2330 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2331 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
2332 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2333
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2334 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2335 // The next methods are derived from methods in MemNode.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2336 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2337 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
2338 Node *mem = mmem;
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2339 // TypeOopPtr::NOTNULL+any is an OOP with unknown offset - generally
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2340 // 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
2341 // alias stuff with it any time soon.
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2342 if (toop->base() != Type::AnyPtr &&
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2343 !(toop->klass() != NULL &&
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2344 toop->klass()->is_java_lang_Object() &&
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2345 toop->offset() == Type::OffsetBot)) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2346 mem = mmem->memory_at(alias_idx);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2347 // Update input if it is progress over what we have now
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2348 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2349 return mem;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2350 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2351
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2352 //
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2353 // Move memory users to their memory slices.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2354 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2355 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
2356 Compile* C = _compile;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2357 PhaseGVN* igvn = _igvn;
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2358 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
2359 assert(tp != NULL, "ptr type");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2360 int alias_idx = C->get_alias_index(tp);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2361 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
2362
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2363 // Move users first
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2364 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
2365 Node* use = n->fast_out(i);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2366 if (use->is_MergeMem()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2367 MergeMemNode* mmem = use->as_MergeMem();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2368 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
2369 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
2370 continue; // Nothing to do
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2371 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2372 // Replace previous general reference to mem node.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2373 uint orig_uniq = C->unique();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2374 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
2375 assert(orig_uniq == C->unique(), "no new nodes");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2376 mmem->set_memory_at(general_idx, m);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2377 --imax;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2378 --i;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2379 } else if (use->is_MemBar()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2380 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
2381 if (use->req() > MemBarNode::Precedent &&
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2382 use->in(MemBarNode::Precedent) == n) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2383 // Don't move related membars.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2384 record_for_optimizer(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2385 continue;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2386 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2387 tp = use->as_MemBar()->adr_type()->isa_ptr();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2388 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
2389 alias_idx == general_idx) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2390 continue; // Nothing to do
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2391 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2392 // Move to general memory slice.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2393 uint orig_uniq = C->unique();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2394 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
2395 assert(orig_uniq == C->unique(), "no new nodes");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2396 igvn->hash_delete(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2397 imax -= use->replace_edge(n, m);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2398 igvn->hash_insert(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2399 record_for_optimizer(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2400 --i;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2401 #ifdef ASSERT
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2402 } else if (use->is_Mem()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2403 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
2404 // Don't move related cardmark.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2405 continue;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2406 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2407 // Memory nodes should have new memory input.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2408 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
2409 assert(tp != NULL, "ptr type");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2410 int idx = C->get_alias_index(tp);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2411 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
2412 "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
2413 } else if (use->is_Phi()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2414 // Phi nodes should be split and moved already.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2415 tp = use->as_Phi()->adr_type()->isa_ptr();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2416 assert(tp != NULL, "ptr type");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2417 int idx = C->get_alias_index(tp);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2418 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
2419 } else {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2420 use->dump();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2421 assert(false, "should not be here");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2422 #endif
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2423 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2424 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2425 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2426
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2427 //
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2428 // Search memory chain of "mem" to find a MemNode whose address
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2429 // is the specified alias index.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2430 //
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2431 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
2432 if (orig_mem == NULL)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2433 return orig_mem;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2434 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2435 PhaseGVN* igvn = _igvn;
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2436 const TypeOopPtr *toop = C->get_adr_type(alias_idx)->isa_oopptr();
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2437 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
2438 Node *start_mem = C->start()->proj_out(TypeFunc::Memory);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2439 Node *prev = NULL;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2440 Node *result = orig_mem;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2441 while (prev != result) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2442 prev = result;
253
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2443 if (result == start_mem)
605
98cb887364d3 6810672: Comment typos
twisti
parents: 584
diff changeset
2444 break; // hit one of our sentinels
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2445 if (result->is_Mem()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2446 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
2447 if (at == Type::TOP)
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2448 break; // Dead
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2449 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
2450 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
2451 if (idx == alias_idx)
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2452 break; // Found
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents: 2249
diff changeset
2453 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
2454 !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
2455 break; // Do not skip store to general memory slice.
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2456 }
253
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents: 247
diff changeset
2457 result = result->in(MemNode::Memory);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2458 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2459 if (!is_instance)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2460 continue; // don't search further for non-instance types
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2461 // skip over a call which does not affect this memory slice
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2462 if (result->is_Proj() && result->as_Proj()->_con == TypeFunc::Memory) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2463 Node *proj_in = result->in(0);
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2464 if (proj_in->is_Allocate() && proj_in->_idx == (uint)toop->instance_id()) {
605
98cb887364d3 6810672: Comment typos
twisti
parents: 584
diff changeset
2465 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
2466 } else if (proj_in->is_Call()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2467 CallNode *call = proj_in->as_Call();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2468 if (!call->may_modify(toop, igvn)) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2469 result = call->in(TypeFunc::Memory);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2470 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2471 } else if (proj_in->is_Initialize()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2472 AllocateNode* alloc = proj_in->as_Initialize()->allocation();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2473 // Stop if this is the initialization for the object instance which
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2474 // which contains this memory slice, otherwise skip over it.
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2475 if (alloc == NULL || alloc->_idx != (uint)toop->instance_id()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2476 result = proj_in->in(TypeFunc::Memory);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2477 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2478 } else if (proj_in->is_MemBar()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2479 result = proj_in->in(TypeFunc::Memory);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2480 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2481 } else if (result->is_MergeMem()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2482 MergeMemNode *mmem = result->as_MergeMem();
1815
5867d89c129b 6982537: Crash in Node*step_through_mergemem
never
parents: 1634
diff changeset
2483 result = step_through_mergemem(mmem, alias_idx, toop);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2484 if (result == mmem->base_memory()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2485 // Didn't find instance memory, search through general slice recursively.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2486 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
2487 result = find_inst_mem(result, alias_idx, orig_phis);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2488 if (C->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2489 return NULL;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2490 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2491 mmem->set_memory_at(alias_idx, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2492 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2493 } else if (result->is_Phi() &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2494 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
2495 Node *un = result->as_Phi()->unique_input(igvn);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2496 if (un != NULL) {
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2497 orig_phis.append_if_missing(result->as_Phi());
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2498 result = un;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2499 } else {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2500 break;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2501 }
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2502 } else if (result->is_ClearArray()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2503 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
2504 // Can not bypass initialization of the instance
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2505 // we are looking for.
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2506 break;
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2507 }
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2508 // Otherwise skip it (the call updated 'result' value).
584
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2509 } else if (result->Opcode() == Op_SCMemProj) {
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2510 assert(result->in(0)->is_LoadStore(), "sanity");
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2511 const Type *at = igvn->type(result->in(0)->in(MemNode::Address));
584
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2512 if (at != Type::TOP) {
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2513 assert (at->isa_ptr() != NULL, "pointer type required.");
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2514 int idx = C->get_alias_index(at->is_ptr());
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2515 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
2516 break;
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2517 }
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path")
kvn
parents: 460
diff changeset
2518 result = result->in(0)->in(MemNode::Memory);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2519 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2520 }
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2521 if (result->is_Phi()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2522 PhiNode *mphi = result->as_Phi();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2523 assert(mphi->bottom_type() == Type::MEMORY, "memory phi required");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2524 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
2525 if (!is_instance) {
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2526 // 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
2527 // during Phase 4 if needed.
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2528 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
2529 } 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
2530 // 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
2531 result = split_memory_phi(mphi, alias_idx, orig_phis);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2532 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2533 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2534 // the result is either MemNode, PhiNode, InitializeNode.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2535 return result;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2536 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2537
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2538 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2539 // Convert the types of unescaped object to instance types where possible,
a61af66fc99e Initial load
duke
parents:
diff changeset
2540 // propagate the new type information through the graph, and update memory
a61af66fc99e Initial load
duke
parents:
diff changeset
2541 // edges and MergeMem inputs to reflect the new type.
a61af66fc99e Initial load
duke
parents:
diff changeset
2542 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2543 // We start with allocations (and calls which may be allocations) on alloc_worklist.
a61af66fc99e Initial load
duke
parents:
diff changeset
2544 // The processing is done in 4 phases:
a61af66fc99e Initial load
duke
parents:
diff changeset
2545 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2546 // Phase 1: Process possible allocations from alloc_worklist. Create instance
a61af66fc99e Initial load
duke
parents:
diff changeset
2547 // types for the CheckCastPP for allocations where possible.
a61af66fc99e Initial load
duke
parents:
diff changeset
2548 // Propagate the the new types through users as follows:
a61af66fc99e Initial load
duke
parents:
diff changeset
2549 // casts and Phi: push users on alloc_worklist
a61af66fc99e Initial load
duke
parents:
diff changeset
2550 // AddP: cast Base and Address inputs to the instance type
a61af66fc99e Initial load
duke
parents:
diff changeset
2551 // push any AddP users on alloc_worklist and push any memnode
a61af66fc99e Initial load
duke
parents:
diff changeset
2552 // users onto memnode_worklist.
a61af66fc99e Initial load
duke
parents:
diff changeset
2553 // Phase 2: Process MemNode's from memnode_worklist. compute new address type and
a61af66fc99e Initial load
duke
parents:
diff changeset
2554 // search the Memory chain for a store with the appropriate type
a61af66fc99e Initial load
duke
parents:
diff changeset
2555 // address type. If a Phi is found, create a new version with
605
98cb887364d3 6810672: Comment typos
twisti
parents: 584
diff changeset
2556 // the appropriate memory slices from each of the Phi inputs.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2557 // For stores, process the users as follows:
a61af66fc99e Initial load
duke
parents:
diff changeset
2558 // MemNode: push on memnode_worklist
a61af66fc99e Initial load
duke
parents:
diff changeset
2559 // MergeMem: push on mergemem_worklist
a61af66fc99e Initial load
duke
parents:
diff changeset
2560 // Phase 3: Process MergeMem nodes from mergemem_worklist. Walk each memory slice
a61af66fc99e Initial load
duke
parents:
diff changeset
2561 // moving the first node encountered of each instance type to the
a61af66fc99e Initial load
duke
parents:
diff changeset
2562 // the input corresponding to its alias index.
a61af66fc99e Initial load
duke
parents:
diff changeset
2563 // appropriate memory slice.
a61af66fc99e Initial load
duke
parents:
diff changeset
2564 // Phase 4: Update the inputs of non-instance memory Phis and the Memory input of memnodes.
a61af66fc99e Initial load
duke
parents:
diff changeset
2565 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2566 // In the following example, the CheckCastPP nodes are the cast of allocation
a61af66fc99e Initial load
duke
parents:
diff changeset
2567 // results and the allocation of node 29 is unescaped and eligible to be an
a61af66fc99e Initial load
duke
parents:
diff changeset
2568 // instance type.
a61af66fc99e Initial load
duke
parents:
diff changeset
2569 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2570 // We start with:
a61af66fc99e Initial load
duke
parents:
diff changeset
2571 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2572 // 7 Parm #memory
a61af66fc99e Initial load
duke
parents:
diff changeset
2573 // 10 ConI "12"
a61af66fc99e Initial load
duke
parents:
diff changeset
2574 // 19 CheckCastPP "Foo"
a61af66fc99e Initial load
duke
parents:
diff changeset
2575 // 20 AddP _ 19 19 10 Foo+12 alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2576 // 29 CheckCastPP "Foo"
a61af66fc99e Initial load
duke
parents:
diff changeset
2577 // 30 AddP _ 29 29 10 Foo+12 alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2578 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2579 // 40 StoreP 25 7 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2580 // 50 StoreP 35 40 30 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2581 // 60 StoreP 45 50 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2582 // 70 LoadP _ 60 30 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2583 // 80 Phi 75 50 60 Memory alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2584 // 90 LoadP _ 80 30 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2585 // 100 LoadP _ 80 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2586 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2587 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2588 // Phase 1 creates an instance type for node 29 assigning it an instance id of 24
a61af66fc99e Initial load
duke
parents:
diff changeset
2589 // and creating a new alias index for node 30. This gives:
a61af66fc99e Initial load
duke
parents:
diff changeset
2590 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2591 // 7 Parm #memory
a61af66fc99e Initial load
duke
parents:
diff changeset
2592 // 10 ConI "12"
a61af66fc99e Initial load
duke
parents:
diff changeset
2593 // 19 CheckCastPP "Foo"
a61af66fc99e Initial load
duke
parents:
diff changeset
2594 // 20 AddP _ 19 19 10 Foo+12 alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2595 // 29 CheckCastPP "Foo" iid=24
a61af66fc99e Initial load
duke
parents:
diff changeset
2596 // 30 AddP _ 29 29 10 Foo+12 alias_index=6 iid=24
a61af66fc99e Initial load
duke
parents:
diff changeset
2597 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2598 // 40 StoreP 25 7 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2599 // 50 StoreP 35 40 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2600 // 60 StoreP 45 50 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2601 // 70 LoadP _ 60 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2602 // 80 Phi 75 50 60 Memory alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2603 // 90 LoadP _ 80 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2604 // 100 LoadP _ 80 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2605 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2606 // In phase 2, new memory inputs are computed for the loads and stores,
a61af66fc99e Initial load
duke
parents:
diff changeset
2607 // And a new version of the phi is created. In phase 4, the inputs to
a61af66fc99e Initial load
duke
parents:
diff changeset
2608 // node 80 are updated and then the memory nodes are updated with the
a61af66fc99e Initial load
duke
parents:
diff changeset
2609 // values computed in phase 2. This results in:
a61af66fc99e Initial load
duke
parents:
diff changeset
2610 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2611 // 7 Parm #memory
a61af66fc99e Initial load
duke
parents:
diff changeset
2612 // 10 ConI "12"
a61af66fc99e Initial load
duke
parents:
diff changeset
2613 // 19 CheckCastPP "Foo"
a61af66fc99e Initial load
duke
parents:
diff changeset
2614 // 20 AddP _ 19 19 10 Foo+12 alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2615 // 29 CheckCastPP "Foo" iid=24
a61af66fc99e Initial load
duke
parents:
diff changeset
2616 // 30 AddP _ 29 29 10 Foo+12 alias_index=6 iid=24
a61af66fc99e Initial load
duke
parents:
diff changeset
2617 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2618 // 40 StoreP 25 7 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2619 // 50 StoreP 35 7 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2620 // 60 StoreP 45 40 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2621 // 70 LoadP _ 50 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2622 // 80 Phi 75 40 60 Memory alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2623 // 120 Phi 75 50 50 Memory alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2624 // 90 LoadP _ 120 30 ... alias_index=6
a61af66fc99e Initial load
duke
parents:
diff changeset
2625 // 100 LoadP _ 80 20 ... alias_index=4
a61af66fc99e Initial load
duke
parents:
diff changeset
2626 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2627 void ConnectionGraph::split_unique_types(GrowableArray<Node *> &alloc_worklist) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2628 GrowableArray<Node *> memnode_worklist;
a61af66fc99e Initial load
duke
parents:
diff changeset
2629 GrowableArray<PhiNode *> orig_phis;
1921
e4fcbeb5a698 6991188: C2 Crashes while compiling method
kvn
parents: 1815
diff changeset
2630 PhaseIterGVN *igvn = _igvn;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2631 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
2632 Arena* arena = Thread::current()->resource_area();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2633 VectorSet visited(arena);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2634 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
2635 uint unique_old = _compile->unique();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2636
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2637 // Phase 1: Process possible allocations from alloc_worklist.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2638 // Create instance types for the CheckCastPP for allocations where possible.
244
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
2639 //
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
2640 // (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
2641 // 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
2642 // see the comment in find_second_addp().)
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
2643 //
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2644 while (alloc_worklist.length() != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2645 Node *n = alloc_worklist.pop();
a61af66fc99e Initial load
duke
parents:
diff changeset
2646 uint ni = n->_idx;
a61af66fc99e Initial load
duke
parents:
diff changeset
2647 if (n->is_Call()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2648 CallNode *alloc = n->as_Call();
a61af66fc99e Initial load
duke
parents:
diff changeset
2649 // copy escape information to call node
244
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
2650 PointsToNode* ptn = ptnode_adr(alloc->_idx);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2651 PointsToNode::EscapeState es = ptn->escape_state();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2652 // We have an allocation or call which returns a Java object,
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2653 // see if it is unescaped.
4058
59e515ee9354 7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents: 4046
diff changeset
2654 if (es != PointsToNode::NoEscape || !ptn->scalar_replaceable())
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2655 continue;
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2656 // 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
2657 n = alloc->result_cast();
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2658 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
2659 if (alloc->is_Allocate()) {
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2660 // 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
2661 // 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
2662 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
2663 }
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2664 continue;
39
76256d272075 6667612: (Escape Analysis) disable loop cloning if it has a scalar replaceable allocation
kvn
parents: 38
diff changeset
2665 }
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2666 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
2667 assert(!alloc->is_Allocate(), "allocation should have unique type");
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2668 continue;
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2669 }
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2670
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2671 // 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
2672 // 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
2673 // object. Detect this case and use the second cast.
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2674 // Also detect j.l.reflect.Array.newInstance(jobject, jint) case when
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2675 // the allocation result is cast to java.lang.Object and then
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2676 // to the actual Array type.
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2677 if (alloc->is_Allocate() && n->as_Type()->type() == TypeInstPtr::NOTNULL
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2678 && (alloc->is_AllocateArray() ||
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
2679 igvn->type(alloc->in(AllocateNode::KlassNode)) != TypeKlassPtr::OBJECT)) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2680 Node *cast2 = NULL;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2681 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
2682 Node *use = n->fast_out(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2683 if (use->is_CheckCastPP()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2684 cast2 = use;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2685 break;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2686 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2687 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2688 if (cast2 != NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2689 n = cast2;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2690 } else {
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2691 // 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
2692 // (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
2693 // deoptimization without precise type.
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2694 continue;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2695 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2696 }
784
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2697 if (alloc->is_Allocate()) {
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2698 // 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
2699 // so it could be eliminated.
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents: 605
diff changeset
2700 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
2701 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2702 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
2703 // 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
2704 // - a direct allocation (not a call returning an object)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2705 // - non-escaping
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2706 // - eligible to be a unique type
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2707 // - 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
2708 set_map(alloc, n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2709 set_map(n, alloc);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2710 const TypeOopPtr *t = igvn->type(n)->isa_oopptr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2711 if (t == NULL)
4058
59e515ee9354 7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents: 4046
diff changeset
2712 continue; // not a TypeOopPtr
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2713 const TypeOopPtr* tinst = t->cast_to_exactness(true)->is_oopptr()->cast_to_instance_id(ni);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2714 igvn->hash_delete(n);
a61af66fc99e Initial load
duke
parents:
diff changeset
2715 igvn->set_type(n, tinst);
a61af66fc99e Initial load
duke
parents:
diff changeset
2716 n->raise_bottom_type(tinst);
a61af66fc99e Initial load
duke
parents:
diff changeset
2717 igvn->hash_insert(n);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2718 record_for_optimizer(n);
4058
59e515ee9354 7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents: 4046
diff changeset
2719 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
2720
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2721 // 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
2722 // 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
2723 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
2724 PointsToNode* tgt = e.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2725 Node* use = tgt->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2726 assert(tgt->is_Field() && use->is_AddP(),
163
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2727 "only AddP nodes are Field edges in CG");
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2728 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
2729 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
2730 if (addp2 != NULL) {
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2731 assert(alloc->is_AllocateArray(),"array allocation was expected");
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2732 alloc_worklist.append_if_missing(addp2);
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2733 }
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2734 alloc_worklist.append_if_missing(use);
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2735 }
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2736 }
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2737
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2738 // An allocation may have an Initialize which has raw stores. Scan
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2739 // the users of the raw allocation result and push AddP users
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2740 // on alloc_worklist.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2741 Node *raw_result = alloc->proj_out(TypeFunc::Parms);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2742 assert (raw_result != NULL, "must have an allocation result");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2743 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
2744 Node *use = raw_result->fast_out(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2745 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
2746 Node* addp2 = find_second_addp(use, raw_result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2747 if (addp2 != NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2748 assert(alloc->is_AllocateArray(),"array allocation was expected");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2749 alloc_worklist.append_if_missing(addp2);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2750 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2751 alloc_worklist.append_if_missing(use);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2752 } else if (use->is_MemBar()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2753 memnode_worklist.append_if_missing(use);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2754 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2755 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2756 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2757 } else if (n->is_AddP()) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2758 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
2759 if (jobj == NULL || jobj == phantom_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2760 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2761 ptnode_adr(get_addp_base(n)->_idx)->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2762 ptnode_adr(n->_idx)->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2763 assert(jobj != NULL && jobj != phantom_obj, "escaped allocation");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2764 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2765 _compile->record_failure(C2Compiler::retry_no_escape_analysis());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2766 return;
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2767 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2768 Node *base = get_map(jobj->idx()); // CheckCastPP node
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2769 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
2770 } else if (n->is_Phi() ||
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2771 n->is_CheckCastPP() ||
168
7793bd37a336 6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents: 164
diff changeset
2772 n->is_EncodeP() ||
7793bd37a336 6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents: 164
diff changeset
2773 n->is_DecodeN() ||
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2774 (n->is_ConstraintCast() && n->Opcode() == Op_CastPP)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2775 if (visited.test_set(n->_idx)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2776 assert(n->is_Phi(), "loops only through Phi's");
a61af66fc99e Initial load
duke
parents:
diff changeset
2777 continue; // already processed
a61af66fc99e Initial load
duke
parents:
diff changeset
2778 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2779 JavaObjectNode* jobj = unique_java_object(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2780 if (jobj == NULL || jobj == phantom_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2781 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2782 ptnode_adr(n->_idx)->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2783 assert(jobj != NULL && jobj != phantom_obj, "escaped allocation");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2784 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2785 _compile->record_failure(C2Compiler::retry_no_escape_analysis());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2786 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2787 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2788 Node *val = get_map(jobj->idx()); // CheckCastPP node
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2789 TypeNode *tn = n->as_Type();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2790 const TypeOopPtr* tinst = igvn->type(val)->isa_oopptr();
223
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2791 assert(tinst != NULL && tinst->is_known_instance() &&
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2792 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
2793
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2794 const Type *tn_type = igvn->type(tn);
223
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2795 const TypeOopPtr *tn_t;
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2796 if (tn_type->isa_narrowoop()) {
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2797 tn_t = tn_type->make_ptr()->isa_oopptr();
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2798 } else {
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2799 tn_t = tn_type->isa_oopptr();
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis
kvn
parents: 221
diff changeset
2800 }
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2801 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
2802 if (tn_type->isa_narrowoop()) {
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2803 tn_type = tinst->make_narrowoop();
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2804 } else {
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2805 tn_type = tinst;
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2806 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2807 igvn->hash_delete(tn);
163
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2808 igvn->set_type(tn, tn_type);
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null
kvn
parents: 124
diff changeset
2809 tn->set_type(tn_type);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2810 igvn->hash_insert(tn);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2811 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
2812 } else {
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2813 assert(tn_type == TypePtr::NULL_PTR ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2814 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
2815 "unexpected type");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2816 continue; // Skip dead path with different type
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2817 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2818 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2819 } else {
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2820 debug_only(n->dump();)
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2821 assert(false, "EA: unexpected node");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2822 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
2823 }
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2824 // push allocation's users on appropriate worklist
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2825 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2826 Node *use = n->fast_out(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
2827 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
2828 // Load/store to instance's field
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2829 memnode_worklist.append_if_missing(use);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2830 } else if (use->is_MemBar()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2831 memnode_worklist.append_if_missing(use);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2832 } else if (use->is_AddP() && use->outcnt() > 0) { // No dead nodes
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2833 Node* addp2 = find_second_addp(use, n);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2834 if (addp2 != NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2835 alloc_worklist.append_if_missing(addp2);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2836 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2837 alloc_worklist.append_if_missing(use);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2838 } else if (use->is_Phi() ||
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2839 use->is_CheckCastPP() ||
168
7793bd37a336 6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents: 164
diff changeset
2840 use->is_EncodeP() ||
7793bd37a336 6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents: 164
diff changeset
2841 use->is_DecodeN() ||
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2842 (use->is_ConstraintCast() && use->Opcode() == Op_CastPP)) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2843 alloc_worklist.append_if_missing(use);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2844 #ifdef ASSERT
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2845 } else if (use->is_Mem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2846 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
2847 } else if (use->is_MergeMem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2848 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
2849 } else if (use->is_SafePoint()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2850 // 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
2851 // (through CheckCastPP nodes) even for debug info.
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2852 Node* m = use->in(TypeFunc::Memory);
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2853 if (m->is_MergeMem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2854 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
2855 }
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2856 } else {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2857 uint op = use->Opcode();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2858 if (!(op == Op_CmpP || op == Op_Conv2B ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2859 op == Op_CastP2X || op == Op_StoreCM ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2860 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
2861 op == Op_StrEquals || op == Op_StrIndexOf)) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2862 n->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2863 use->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2864 assert(false, "EA: missing allocation reference path");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2865 }
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2866 #endif
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2867 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2868 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2869
a61af66fc99e Initial load
duke
parents:
diff changeset
2870 }
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2871 // New alias types were created in split_AddP().
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2872 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
2873 assert(unique_old == _compile->unique(), "there should be no new ideal nodes after Phase 1");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2874
a61af66fc99e Initial load
duke
parents:
diff changeset
2875 // Phase 2: Process MemNode's from memnode_worklist. compute new address type and
a61af66fc99e Initial load
duke
parents:
diff changeset
2876 // compute new values for Memory inputs (the Memory inputs are not
a61af66fc99e Initial load
duke
parents:
diff changeset
2877 // actually updated until phase 4.)
a61af66fc99e Initial load
duke
parents:
diff changeset
2878 if (memnode_worklist.length() == 0)
a61af66fc99e Initial load
duke
parents:
diff changeset
2879 return; // nothing to do
a61af66fc99e Initial load
duke
parents:
diff changeset
2880 while (memnode_worklist.length() != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2881 Node *n = memnode_worklist.pop();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2882 if (visited.test_set(n->_idx))
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2883 continue;
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2884 if (n->is_Phi() || n->is_ClearArray()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2885 // 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
2886 } 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
2887 // 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
2888 n = n->as_MemBar()->proj_out(TypeFunc::Memory);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2889 if (n == NULL)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2890 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
2891 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2892 assert(n->is_Mem(), "memory node required.");
a61af66fc99e Initial load
duke
parents:
diff changeset
2893 Node *addr = n->in(MemNode::Address);
a61af66fc99e Initial load
duke
parents:
diff changeset
2894 const Type *addr_t = igvn->type(addr);
a61af66fc99e Initial load
duke
parents:
diff changeset
2895 if (addr_t == Type::TOP)
a61af66fc99e Initial load
duke
parents:
diff changeset
2896 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
2897 assert (addr_t->isa_ptr() != NULL, "pointer type required.");
a61af66fc99e Initial load
duke
parents:
diff changeset
2898 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
2899 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
2900 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
2901 if (_compile->failing()) {
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2902 return;
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents: 0
diff changeset
2903 }
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2904 if (mem != n->in(MemNode::Memory)) {
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2905 // 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
2906 // 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
2907 set_map(n, mem);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2908 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2909 if (n->is_Load()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2910 continue; // don't push users
a61af66fc99e Initial load
duke
parents:
diff changeset
2911 } else if (n->is_LoadStore()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2912 // get the memory projection
a61af66fc99e Initial load
duke
parents:
diff changeset
2913 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2914 Node *use = n->fast_out(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
2915 if (use->Opcode() == Op_SCMemProj) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2916 n = use;
a61af66fc99e Initial load
duke
parents:
diff changeset
2917 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2918 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2919 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2920 assert(n->Opcode() == Op_SCMemProj, "memory projection required");
a61af66fc99e Initial load
duke
parents:
diff changeset
2921 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2922 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2923 // push user on appropriate worklist
a61af66fc99e Initial load
duke
parents:
diff changeset
2924 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2925 Node *use = n->fast_out(i);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2926 if (use->is_Phi() || use->is_ClearArray()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2927 memnode_worklist.append_if_missing(use);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2928 } 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
2929 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
2930 continue;
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2931 memnode_worklist.append_if_missing(use);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2932 } else if (use->is_MemBar()) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2933 memnode_worklist.append_if_missing(use);
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2934 #ifdef ASSERT
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2935 } else if(use->is_Mem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2936 assert(use->in(MemNode::Memory) != n, "EA: missing memory path");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2937 } else if (use->is_MergeMem()) {
1100
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2938 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
2939 } else {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2940 uint op = use->Opcode();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2941 if (!(op == Op_StoreCM ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2942 (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
2943 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
2944 op == Op_AryEq || op == Op_StrComp ||
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2945 op == Op_StrEquals || op == Op_StrIndexOf)) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2946 n->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2947 use->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2948 assert(false, "EA: missing memory path");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2949 }
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2950 #endif
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2951 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2952 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2953 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2954
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2955 // 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
2956 // 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
2957 // 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
2958 uint length = _mergemem_worklist.length();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2959 for( uint next = 0; next < length; ++next ) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2960 MergeMemNode* nmm = _mergemem_worklist.at(next);
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents: 1072
diff changeset
2961 assert(!visited.test_set(nmm->_idx), "should not be visited before");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2962 // 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
2963 // 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
2964 // 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
2965 // 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
2966 igvn->hash_delete(nmm);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2967 uint nslices = nmm->req();
a61af66fc99e Initial load
duke
parents:
diff changeset
2968 for (uint i = Compile::AliasIdxRaw+1; i < nslices; i++) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2969 Node* mem = nmm->in(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2970 Node* cur = NULL;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2971 if (mem == NULL || mem->is_top())
a61af66fc99e Initial load
duke
parents:
diff changeset
2972 continue;
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
2973 // 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
2974 // if their type became more precise since this mergemem was created.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2975 while (mem->is_Mem()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2976 const Type *at = igvn->type(mem->in(MemNode::Address));
a61af66fc99e Initial load
duke
parents:
diff changeset
2977 if (at != Type::TOP) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2978 assert (at->isa_ptr() != NULL, "pointer type required.");
a61af66fc99e Initial load
duke
parents:
diff changeset
2979 uint idx = (uint)_compile->get_alias_index(at->is_ptr());
a61af66fc99e Initial load
duke
parents:
diff changeset
2980 if (idx == i) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2981 if (cur == NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
2982 cur = mem;
a61af66fc99e Initial load
duke
parents:
diff changeset
2983 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2984 if (idx >= nmm->req() || nmm->is_empty_memory(nmm->in(idx))) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2985 nmm->set_memory_at(idx, mem);
a61af66fc99e Initial load
duke
parents:
diff changeset
2986 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2987 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2988 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2989 mem = mem->in(MemNode::Memory);
a61af66fc99e Initial load
duke
parents:
diff changeset
2990 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2991 nmm->set_memory_at(i, (cur != NULL) ? cur : mem);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2992 // 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
2993 // 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
2994 for (uint ni = new_index_start; ni < new_index_end; ni++) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2995 if((uint)_compile->get_general_index(ni) == i) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2996 Node *m = (ni >= nmm->req()) ? nmm->empty_memory() : nmm->in(ni);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2997 if (nmm->is_empty_memory(m)) {
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
2998 Node* result = find_inst_mem(mem, ni, orig_phis);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
2999 if (_compile->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3000 return;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3001 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3002 nmm->set_memory_at(ni, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3003 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3004 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3005 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3006 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3007 // Find the rest of instances values
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3008 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
3009 const TypeOopPtr *tinst = _compile->get_adr_type(ni)->isa_oopptr();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3010 Node* result = step_through_mergemem(nmm, ni, tinst);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3011 if (result == nmm->base_memory()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3012 // 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
3013 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
3014 result = find_inst_mem(result, ni, orig_phis);
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3015 if (_compile->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3016 return;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3017 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3018 nmm->set_memory_at(ni, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3019 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3020 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3021 igvn->hash_insert(nmm);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3022 record_for_optimizer(nmm);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3023 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3024
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3025 // Phase 4: Update the inputs of non-instance memory Phis and
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3026 // the Memory input of memnodes
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3027 // First update the inputs of any non-instance Phi's from
a61af66fc99e Initial load
duke
parents:
diff changeset
3028 // which we split out an instance Phi. Note we don't have
a61af66fc99e Initial load
duke
parents:
diff changeset
3029 // to recursively process Phi's encounted on the input memory
a61af66fc99e Initial load
duke
parents:
diff changeset
3030 // chains as is done in split_memory_phi() since they will
a61af66fc99e Initial load
duke
parents:
diff changeset
3031 // also be processed here.
247
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
3032 for (int j = 0; j < orig_phis.length(); j++) {
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric
kvn
parents: 245
diff changeset
3033 PhiNode *phi = orig_phis.at(j);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3034 int alias_idx = _compile->get_alias_index(phi->adr_type());
a61af66fc99e Initial load
duke
parents:
diff changeset
3035 igvn->hash_delete(phi);
a61af66fc99e Initial load
duke
parents:
diff changeset
3036 for (uint i = 1; i < phi->req(); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3037 Node *mem = phi->in(i);
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3038 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
3039 if (_compile->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3040 return;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3041 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3042 if (mem != new_mem) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3043 phi->set_req(i, new_mem);
a61af66fc99e Initial load
duke
parents:
diff changeset
3044 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3045 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3046 igvn->hash_insert(phi);
a61af66fc99e Initial load
duke
parents:
diff changeset
3047 record_for_optimizer(phi);
a61af66fc99e Initial load
duke
parents:
diff changeset
3048 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3049
a61af66fc99e Initial load
duke
parents:
diff changeset
3050 // 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
3051 // 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
3052 // 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
3053 // 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
3054 #if 0 // ifdef ASSERT
2249
3763ca6579b7 7013538: Java memory leak with escape analysis
kvn
parents: 2086
diff changeset
3055 visited.Reset();
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3056 Node_Stack old_mems(arena, _compile->unique() >> 2);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3057 #endif
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3058 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
3059 Node* n = ideal_nodes.at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3060 Node* nmem = get_map(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3061 assert(nmem != NULL, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3062 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
3063 #if 0 // ifdef ASSERT
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3064 Node* old_mem = n->in(MemNode::Memory);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3065 if (!visited.test_set(old_mem->_idx)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3066 old_mems.push(old_mem, old_mem->outcnt());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3067 }
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3068 #endif
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3069 assert(n->in(MemNode::Memory) != nmem, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3070 if (!n->is_Load()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3071 // Move memory users of a store first.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3072 move_inst_mem(n, orig_phis);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3073 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3074 // Now update memory input
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3075 igvn->hash_delete(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3076 n->set_req(MemNode::Memory, nmem);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3077 igvn->hash_insert(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3078 record_for_optimizer(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3079 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3080 assert(n->is_Allocate() || n->is_CheckCastPP() ||
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3081 n->is_AddP() || n->is_Phi(), "unknown node used for set_map()");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3082 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3083 }
3278
66b0e2371912 7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents: 2459
diff changeset
3084 #if 0 // ifdef ASSERT
1101
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3085 // Verify that memory was split correctly
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3086 while (old_mems.is_nonempty()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3087 Node* old_mem = old_mems.node();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3088 uint old_cnt = old_mems.index();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3089 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
3090 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
3091 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents: 1100
diff changeset
3092 #endif
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3093 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3094
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3095 #ifndef PRODUCT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3096 static const char *node_type_names[] = {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3097 "UnknownType",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3098 "JavaObject",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3099 "LocalVar",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3100 "Field",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3101 "Arraycopy"
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3102 };
4937
73df3733f2eb 7129284: +DoEscapeAnalysis regression w/ early build of 7u4 (HotSpot 23) on Linux
kvn
parents: 4777
diff changeset
3103
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3104 static const char *esc_names[] = {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3105 "UnknownEscape",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3106 "NoEscape",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3107 "ArgEscape",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3108 "GlobalEscape"
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3109 };
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3110
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3111 void PointsToNode::dump(bool print_state) const {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3112 NodeType nt = node_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3113 tty->print("%s ", node_type_names[(int) nt]);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3114 if (print_state) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3115 EscapeState es = escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3116 EscapeState fields_es = fields_escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3117 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
3118 if (nt == PointsToNode::JavaObject && !this->scalar_replaceable())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3119 tty->print("NSR");
4113
8c57262447d3 7105605: Use EA info to optimize pointers compare
kvn
parents: 4058
diff changeset
3120 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3121 if (is_Field()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3122 FieldNode* f = (FieldNode*)this;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3123 tty->print("(");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3124 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
3125 PointsToNode* b = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3126 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
3127 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3128 tty->print(" )");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3129 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3130 tty->print("[");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3131 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
3132 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3133 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
3134 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3135 tty->print(" [");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3136 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
3137 PointsToNode* u = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3138 bool is_base = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3139 if (PointsToNode::is_base_use(u)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3140 is_base = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3141 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
3142 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3143 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
3144 }
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3145 tty->print(" ]] ");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3146 if (_node == NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3147 tty->print_cr("<null>");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3148 else
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3149 _node->dump();
4113
8c57262447d3 7105605: Use EA info to optimize pointers compare
kvn
parents: 4058
diff changeset
3150 }
8c57262447d3 7105605: Use EA info to optimize pointers compare
kvn
parents: 4058
diff changeset
3151
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3152 void ConnectionGraph::dump(GrowableArray<PointsToNode*>& ptnodes_worklist) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3153 bool first = true;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3154 int ptnodes_length = ptnodes_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3155 for (int i = 0; i < ptnodes_length; i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3156 PointsToNode *ptn = ptnodes_worklist.at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3157 if (ptn == NULL || !ptn->is_JavaObject())
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3158 continue;
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3159 PointsToNode::EscapeState es = ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3160 if (ptn->ideal_node()->is_Allocate() && (es == PointsToNode::NoEscape || Verbose)) {
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3161 if (first) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3162 tty->cr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3163 tty->print("======== Connection graph for ");
244
524eca34ea76 6684714: Optimize EA Connection Graph build performance
kvn
parents: 223
diff changeset
3164 _compile->method()->print_short_name();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3165 tty->cr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3166 first = false;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3167 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3168 ptn->dump();
5948
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3169 // 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
3170 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
3171 PointsToNode* use = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3172 if (use->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3173 use->dump(Verbose);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3174 } else if (Verbose) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build
kvn
parents: 5901
diff changeset
3175 use->dump();
65
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3176 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3177 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents: 39
diff changeset
3178 tty->cr();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3179 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3180 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3181 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3182 #endif