truffle: src/share/vm/opto/escape.cpp annotate

annotate src/share/vm/opto/escape.cpp @ 10278:6f3fd5150b67

6934604: enable parts of EliminateAutoBox by default Summary: Resurrected autobox elimination code and enabled part of it by default. Reviewed-by: roland, twisti

author	kvn
date	Wed, 08 May 2013 15:08:01 -0700
parents	b30b3c2a0cf2
children	70120f47d403

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();
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	66 for (int i = 0; i < cnt; i++) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	67 Node *n = C->macro_node(i);
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	68 if (n->is_Allocate())
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	69 return true;
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	70 if (n->is_Lock()) {
5948 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();
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	72 if (!(obj->is_Parm() \|\| obj->is_Con()))
5948 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 }
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	75 if (n->is_CallStaticJava() &&
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	76 n->as_CallStaticJava()->is_boxing_method()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	77 return true;
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	78 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	79 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	80 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	81 }
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 void ConnectionGraph::do_analysis(Compile C, PhaseIterGVN igvn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	84 Compile::TracePhase t2("escapeAnalysis", &Phase::_t_escapeAnalysis, true);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	85 ResourceMark rm;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	86
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	87 // 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	88 // to create space for them in ConnectionGraph::_nodes[].
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	89 Node* oop_null = igvn->zerocon(T_OBJECT);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	90 Node* noop_null = igvn->zerocon(T_NARROWOOP);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	91 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	92 // Perform escape analysis
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	93 if (congraph->compute_escape()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	94 // There are non escaping objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	95 C->set_congraph(congraph);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	96 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	97 // Cleanup.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	98 if (oop_null->outcnt() == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	99 igvn->hash_delete(oop_null);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	100 if (noop_null->outcnt() == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	101 igvn->hash_delete(noop_null);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	102 }
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 bool ConnectionGraph::compute_escape() {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	105 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	106 PhaseGVN* igvn = _igvn;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	107
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	108 // Worklists used by EA.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	109 Unique_Node_List delayed_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	110 GrowableArray<Node*> alloc_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	111 GrowableArray<Node*> ptr_cmp_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	112 GrowableArray<Node*> storestore_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	113 GrowableArray<PointsToNode*> ptnodes_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	114 GrowableArray<JavaObjectNode*> java_objects_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	115 GrowableArray<JavaObjectNode*> non_escaped_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	116 GrowableArray<FieldNode*> oop_fields_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	117 DEBUG_ONLY( GrowableArray<Node*> addp_worklist; )
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	118
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	119 { Compile::TracePhase t3("connectionGraph", &Phase::_t_connectionGraph, true);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	120
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	121 // 1. Populate Connection Graph (CG) with PointsTo nodes.
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	122 ideal_nodes.map(C->live_nodes(), NULL); // preallocate space
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	123 // Initialize worklist
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	124 if (C->root() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	125 ideal_nodes.push(C->root());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	126 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	127 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	128 Node* n = ideal_nodes.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	129 // 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	130 // 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	131 add_node_to_connection_graph(n, &delayed_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	132 PointsToNode* ptn = ptnode_adr(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	133 if (ptn != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	134 ptnodes_worklist.append(ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	135 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	136 java_objects_worklist.append(ptn->as_JavaObject());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	137 if ((n->is_Allocate() \|\| n->is_CallStaticJava()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	138 (ptn->escape_state() < PointsToNode::GlobalEscape)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	139 // 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	140 non_escaped_worklist.append(ptn->as_JavaObject());
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 } 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	143 oop_fields_worklist.append(ptn->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	144 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	145 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	146 if (n->is_MergeMem()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	147 // 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	148 // scalar replaceable objects in split_unique_types().
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	149 _mergemem_worklist.append(n->as_MergeMem());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	150 } else if (OptimizePtrCompare && n->is_Cmp() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	151 (n->Opcode() == Op_CmpP \|\| n->Opcode() == Op_CmpN)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	152 // Collect compare pointers nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	153 ptr_cmp_worklist.append(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	154 } else if (n->is_MemBarStoreStore()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	155 // 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	156 // 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	157 // may be eliminated.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	158 storestore_worklist.append(n);
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	159 } else if (n->is_MemBar() && (n->Opcode() == Op_MemBarRelease) &&
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	160 (n->req() > MemBarNode::Precedent)) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	161 record_for_optimizer(n);
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	162 #ifdef ASSERT
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	163 } else if (n->is_AddP()) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	164 // Collect address nodes for graph verification.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	165 addp_worklist.append(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	166 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	167 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	168 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	169 Node* m = n->fast_out(i); // Get user
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	170 ideal_nodes.push(m);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	171 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	172 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	173 if (non_escaped_worklist.length() == 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	174 _collecting = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	175 return false; // Nothing to do.
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 // Add final simple edges to graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	178 while(delayed_worklist.size() > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	179 Node* n = delayed_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	180 add_final_edges(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	181 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	182 int ptnodes_length = ptnodes_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	183
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	184 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	185 if (VerifyConnectionGraph) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	186 // 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	187 // local vars has edges.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	188 _verify = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	189 for (int next = 0; next < ptnodes_length; ++next) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	190 PointsToNode* ptn = ptnodes_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	191 add_final_edges(ptn->ideal_node());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	192 if (ptn->is_LocalVar() && ptn->edge_count() == 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	193 ptn->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	194 assert(ptn->as_LocalVar()->edge_count() > 0, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	195 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	196 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	197 _verify = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	198 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	199 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	200
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	201 // 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	202 // java objects through graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	203 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	204 java_objects_worklist, oop_fields_worklist)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	205 // 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	206 _collecting = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	207 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	208 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	209
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	210 // 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	211 // scalar replaceable allocations on alloc_worklist for processing
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	212 // in split_unique_types().
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	213 int non_escaped_length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	214 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	215 JavaObjectNode* ptn = non_escaped_worklist.at(next);
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	216 bool noescape = (ptn->escape_state() == PointsToNode::NoEscape);
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	217 Node* n = ptn->ideal_node();
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	218 if (n->is_Allocate()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	219 n->as_Allocate()->_is_non_escaping = noescape;
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	220 }
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	221 if (n->is_CallStaticJava()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	222 n->as_CallStaticJava()->_is_non_escaping = noescape;
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	223 }
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	224 if (noescape && ptn->scalar_replaceable()) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	225 adjust_scalar_replaceable_state(ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	226 if (ptn->scalar_replaceable()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	227 alloc_worklist.append(ptn->ideal_node());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	228 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	229 }
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
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	232 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	233 if (VerifyConnectionGraph) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	234 // 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	235 verify_connection_graph(ptnodes_worklist, non_escaped_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	236 java_objects_worklist, addp_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	237 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	238 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	239 assert(null_obj->escape_state() == PointsToNode::NoEscape &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	240 null_obj->edge_count() == 0 &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	241 !null_obj->arraycopy_src() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	242 !null_obj->arraycopy_dst(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	243 #endif
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 _collecting = false;
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 } // TracePhase t3("connectionGraph")
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	248
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	249 // 4. Optimize ideal graph based on EA information.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	250 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	251 if (has_non_escaping_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	252 optimize_ideal_graph(ptr_cmp_worklist, storestore_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	253 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	254
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	255 #ifndef PRODUCT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	256 if (PrintEscapeAnalysis) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	257 dump(ptnodes_worklist); // Dump ConnectionGraph
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 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	260
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	261 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	262 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	263 if (VerifyConnectionGraph) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	264 int alloc_length = alloc_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	265 for (int next = 0; next < alloc_length; ++next) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	266 Node* n = alloc_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	267 PointsToNode* ptn = ptnode_adr(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	268 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	269 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	270 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	271 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	272
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	273 // 5. Separate memory graph for scalar replaceable allcations.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	274 if (has_scalar_replaceable_candidates &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	275 C->AliasLevel() >= 3 && EliminateAllocations) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	276 // 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	277 // scalar replaceable objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	278 split_unique_types(alloc_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	279 if (C->failing()) return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	280 C->print_method("After Escape Analysis", 2);
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 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	283 } else if (Verbose && (PrintEscapeAnalysis \|\| PrintEliminateAllocations)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	284 tty->print("=== No allocations eliminated for ");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	285 C->method()->print_short_name();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	286 if(!EliminateAllocations) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	287 tty->print(" since EliminateAllocations is off ===");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	288 } else if(!has_scalar_replaceable_candidates) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	289 tty->print(" since there are no scalar replaceable candidates ===");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	290 } else if(C->AliasLevel() < 3) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	291 tty->print(" since AliasLevel < 3 ===");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	292 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	293 tty->cr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	294 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	295 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	296 return has_non_escaping_obj;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	297 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	298
6795 7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	299 // Utility function for nodes that load an object
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	300 void ConnectionGraph::add_objload_to_connection_graph(Node n, Unique_Node_List delayed_worklist) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	301 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	302 // ThreadLocal has RawPtr type.
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	303 const Type* t = _igvn->type(n);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	304 if (t->make_ptr() != NULL) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	305 Node* adr = n->in(MemNode::Address);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	306 #ifdef ASSERT
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	307 if (!adr->is_AddP()) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	308 assert(_igvn->type(adr)->isa_rawptr(), "sanity");
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	309 } else {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	310 assert((ptnode_adr(adr->_idx) == NULL \|\|
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	311 ptnode_adr(adr->_idx)->as_Field()->is_oop()), "sanity");
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	312 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	313 #endif
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	314 add_local_var_and_edge(n, PointsToNode::NoEscape,
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	315 adr, delayed_worklist);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	316 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	317 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	318
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	319 // Populate Connection Graph with PointsTo nodes and create simple
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	320 // connection graph edges.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	321 void ConnectionGraph::add_node_to_connection_graph(Node n, Unique_Node_List delayed_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	322 assert(!_verify, "this method sould not be called for verification");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	323 PhaseGVN* igvn = _igvn;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	324 uint n_idx = n->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	325 PointsToNode* n_ptn = ptnode_adr(n_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	326 if (n_ptn != NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	327 return; // No need to redefine PointsTo node during first iteration.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	328
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	329 if (n->is_Call()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	330 // Arguments to allocation and locking don't escape.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	331 if (n->is_AbstractLock()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	332 // Put Lock and Unlock nodes on IGVN worklist to process them during
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	333 // first IGVN optimization when escape information is still available.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	334 record_for_optimizer(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	335 } else if (n->is_Allocate()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	336 add_call_node(n->as_Call());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	337 record_for_optimizer(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	338 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	339 if (n->is_CallStaticJava()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	340 const char* name = n->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	341 if (name != NULL && strcmp(name, "uncommon_trap") == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	342 return; // Skip uncommon traps
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	343 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	344 // Don't mark as processed since call's arguments have to be processed.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	345 delayed_worklist->push(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	346 // Check if a call returns an object.
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	347 if ((n->as_Call()->returns_pointer() &&
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	348 n->as_Call()->proj_out(TypeFunc::Parms) != NULL) \|\|
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	349 (n->is_CallStaticJava() &&
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	350 n->as_CallStaticJava()->is_boxing_method())) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	351 add_call_node(n->as_Call());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	352 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	353 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	354 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	355 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	356 // Put this check here to process call arguments since some call nodes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	357 // point to phantom_obj.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	358 if (n_ptn == phantom_obj \|\| n_ptn == null_obj)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	359 return; // Skip predefined nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	360
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	361 int opcode = n->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	362 switch (opcode) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	363 case Op_AddP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	364 Node* base = get_addp_base(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	365 PointsToNode* ptn_base = ptnode_adr(base->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	366 // Field nodes are created for all field types. They are used in
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	367 // adjust_scalar_replaceable_state() and split_unique_types().
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	368 // Note, non-oop fields will have only base edges in Connection
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	369 // Graph because such fields are not used for oop loads and stores.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	370 int offset = address_offset(n, igvn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	371 add_field(n, PointsToNode::NoEscape, offset);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	372 if (ptn_base == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	373 delayed_worklist->push(n); // Process it later.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	374 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	375 n_ptn = ptnode_adr(n_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	376 add_base(n_ptn->as_Field(), ptn_base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	377 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	378 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	379 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	380 case Op_CastX2P: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	381 map_ideal_node(n, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	382 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	383 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	384 case Op_CastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	385 case Op_CheckCastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	386 case Op_EncodeP:
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	387 case Op_DecodeN:
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	388 case Op_EncodePKlass:
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	389 case Op_DecodeNKlass: {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	390 add_local_var_and_edge(n, PointsToNode::NoEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	391 n->in(1), delayed_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	392 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	393 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	394 case Op_CMoveP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	395 add_local_var(n, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	396 // Do not add edges during first iteration because some could be
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	397 // not defined yet.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	398 delayed_worklist->push(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	399 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	400 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	401 case Op_ConP:
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	402 case Op_ConN:
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	403 case Op_ConNKlass: {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	404 // assume all oop constants globally escape except for null
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	405 PointsToNode::EscapeState es;
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	406 const Type* t = igvn->type(n);
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	407 if (t == TypePtr::NULL_PTR \|\| t == TypeNarrowOop::NULL_PTR) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	408 es = PointsToNode::NoEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	409 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	410 es = PointsToNode::GlobalEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	411 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	412 add_java_object(n, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	413 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	414 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	415 case Op_CreateEx: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	416 // assume that all exception objects globally escape
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	417 add_java_object(n, PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	418 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	419 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	420 case Op_LoadKlass:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	421 case Op_LoadNKlass: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	422 // Unknown class is loaded
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	423 map_ideal_node(n, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	424 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	425 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	426 case Op_LoadP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	427 case Op_LoadN:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	428 case Op_LoadPLocked: {
6795 7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	429 add_objload_to_connection_graph(n, delayed_worklist);
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	430 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	431 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	432 case Op_Parm: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	433 map_ideal_node(n, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	434 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	435 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	436 case Op_PartialSubtypeCheck: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	437 // Produces Null or notNull and is used in only in CmpP so
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	438 // phantom_obj could be used.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	439 map_ideal_node(n, phantom_obj); // Result is unknown
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	440 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	441 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	442 case Op_Phi: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	443 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
6795 7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	444 // ThreadLocal has RawPtr type.
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	445 const Type* t = n->as_Phi()->type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	446 if (t->make_ptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	447 add_local_var(n, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	448 // Do not add edges during first iteration because some could be
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	449 // not defined yet.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	450 delayed_worklist->push(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	451 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	452 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	453 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	454 case Op_Proj: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	455 // we are only interested in the oop result projection from a call
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	456 if (n->as_Proj()->_con == TypeFunc::Parms && n->in(0)->is_Call() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	457 n->in(0)->as_Call()->returns_pointer()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	458 add_local_var_and_edge(n, PointsToNode::NoEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	459 n->in(0), delayed_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	460 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	461 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	462 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	463 case Op_Rethrow: // Exception object escapes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	464 case Op_Return: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	465 if (n->req() > TypeFunc::Parms &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	466 igvn->type(n->in(TypeFunc::Parms))->isa_oopptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	467 // Treat Return value as LocalVar with GlobalEscape escape state.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	468 add_local_var_and_edge(n, PointsToNode::GlobalEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	469 n->in(TypeFunc::Parms), delayed_worklist);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	470 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	471 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	472 }
6795 7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	473 case Op_GetAndSetP:
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	474 case Op_GetAndSetN: {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	475 add_objload_to_connection_graph(n, delayed_worklist);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	476 // fallthrough
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	477 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	478 case Op_StoreP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	479 case Op_StoreN:
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	480 case Op_StoreNKlass:
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	481 case Op_StorePConditional:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	482 case Op_CompareAndSwapP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	483 case Op_CompareAndSwapN: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	484 Node* adr = n->in(MemNode::Address);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	485 const Type *adr_type = igvn->type(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	486 adr_type = adr_type->make_ptr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	487 if (adr_type->isa_oopptr() \|\|
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	488 (opcode == Op_StoreP \|\| opcode == Op_StoreN \|\| opcode == Op_StoreNKlass) &&
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	489 (adr_type == TypeRawPtr::NOTNULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	490 adr->in(AddPNode::Address)->is_Proj() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	491 adr->in(AddPNode::Address)->in(0)->is_Allocate())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	492 delayed_worklist->push(n); // Process it later.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	493 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	494 assert(adr->is_AddP(), "expecting an AddP");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	495 if (adr_type == TypeRawPtr::NOTNULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	496 // 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	497 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	498 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	499 }
5954 ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	500 #endif
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	501 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	502 // 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	503 if (adr->is_BoxLock())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	504 break;
5954 ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	505 // Stored value escapes in unsafe access.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	506 if ((opcode == Op_StoreP) && (adr_type == TypeRawPtr::BOTTOM)) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	507 // Pointer stores in G1 barriers looks like unsafe access.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	508 // 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	509 // allocations.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	510 if (UseG1GC && adr->is_AddP()) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	511 Node* base = get_addp_base(adr);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	512 if (base->Opcode() == Op_LoadP &&
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	513 base->in(MemNode::Address)->is_AddP()) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	514 adr = base->in(MemNode::Address);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	515 Node* tls = get_addp_base(adr);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	516 if (tls->Opcode() == Op_ThreadLocal) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	517 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	518 if (offs == in_bytes(JavaThread::satb_mark_queue_offset() +
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	519 PtrQueue::byte_offset_of_buf())) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	520 break; // G1 pre barier previous oop value store.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	521 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	522 if (offs == in_bytes(JavaThread::dirty_card_queue_offset() +
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	523 PtrQueue::byte_offset_of_buf())) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	524 break; // G1 post barier card address store.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	525 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	526 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	527 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	528 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	529 delayed_worklist->push(n); // Process unsafe access later.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	530 break;
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	531 }
5954 ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	532 #ifdef ASSERT
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	533 n->dump(1);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	534 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	535 #endif
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 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	538 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	539 case Op_AryEq:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	540 case Op_StrComp:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	541 case Op_StrEquals:
7637 b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	542 case Op_StrIndexOf:
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	543 case Op_EncodeISOArray: {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	544 add_local_var(n, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	545 delayed_worklist->push(n); // Process it later.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	546 break;
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 case Op_ThreadLocal: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	549 add_java_object(n, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	550 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	551 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	552 default:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	553 ; // Do nothing for nodes not related to EA.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	554 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	555 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	556 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	557
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	558 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	559 #define ELSE_FAIL(name) \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	560 /* Should not be called for not pointer type. */ \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	561 n->dump(1); \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	562 assert(false, name); \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	563 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	564 #else
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	565 #define ELSE_FAIL(name) \
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	566 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	567 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	568
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	569 // Add final simple edges to graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	570 void ConnectionGraph::add_final_edges(Node *n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	571 PointsToNode* n_ptn = ptnode_adr(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	572 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	573 if (_verify && n_ptn->is_JavaObject())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	574 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	575 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	576
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	577 if (n->is_Call()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	578 process_call_arguments(n->as_Call());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	579 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	580 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	581 assert(n->is_Store() \|\| n->is_LoadStore() \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	582 (n_ptn != NULL) && (n_ptn->ideal_node() != NULL),
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	583 "node should be registered already");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	584 int opcode = n->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	585 switch (opcode) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	586 case Op_AddP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	587 Node* base = get_addp_base(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	588 PointsToNode* ptn_base = ptnode_adr(base->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	589 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	590 add_base(n_ptn->as_Field(), ptn_base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	591 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	592 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	593 case Op_CastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	594 case Op_CheckCastPP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	595 case Op_EncodeP:
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	596 case Op_DecodeN:
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	597 case Op_EncodePKlass:
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	598 case Op_DecodeNKlass: {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	599 add_local_var_and_edge(n, PointsToNode::NoEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	600 n->in(1), NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	601 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	602 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	603 case Op_CMoveP: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	604 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	605 Node* in = n->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	606 if (in == NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	607 continue; // ignore NULL
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	608 Node* uncast_in = in->uncast();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	609 if (uncast_in->is_top() \|\| uncast_in == n)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	610 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	611 PointsToNode* ptn = ptnode_adr(in->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	612 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	613 add_edge(n_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	614 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	615 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	616 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	617 case Op_LoadP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	618 case Op_LoadN:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	619 case Op_LoadPLocked: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	620 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
6795 7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	621 // ThreadLocal has RawPtr type.
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	622 const Type* t = _igvn->type(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	623 if (t->make_ptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	624 Node* adr = n->in(MemNode::Address);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	625 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	626 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	627 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	628 ELSE_FAIL("Op_LoadP");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	629 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	630 case Op_Phi: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	631 // Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because
6795 7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	632 // ThreadLocal has RawPtr type.
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	633 const Type* t = n->as_Phi()->type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	634 if (t->make_ptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	635 for (uint i = 1; i < n->req(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	636 Node* in = n->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	637 if (in == NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	638 continue; // ignore NULL
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	639 Node* uncast_in = in->uncast();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	640 if (uncast_in->is_top() \|\| uncast_in == n)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	641 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	642 PointsToNode* ptn = ptnode_adr(in->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	643 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	644 add_edge(n_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	645 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	646 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	647 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	648 ELSE_FAIL("Op_Phi");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	649 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	650 case Op_Proj: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	651 // 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	652 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	653 n->in(0)->as_Call()->returns_pointer()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	654 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	655 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	656 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	657 ELSE_FAIL("Op_Proj");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	658 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	659 case Op_Rethrow: // Exception object escapes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	660 case Op_Return: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	661 if (n->req() > TypeFunc::Parms &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	662 _igvn->type(n->in(TypeFunc::Parms))->isa_oopptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	663 // 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	664 add_local_var_and_edge(n, PointsToNode::GlobalEscape,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	665 n->in(TypeFunc::Parms), NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	666 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	667 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	668 ELSE_FAIL("Op_Return");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	669 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	670 case Op_StoreP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	671 case Op_StoreN:
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	672 case Op_StoreNKlass:
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	673 case Op_StorePConditional:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	674 case Op_CompareAndSwapP:
6795 7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	675 case Op_CompareAndSwapN:
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	676 case Op_GetAndSetP:
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	677 case Op_GetAndSetN: {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	678 Node* adr = n->in(MemNode::Address);
6795 7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	679 if (opcode == Op_GetAndSetP \|\| opcode == Op_GetAndSetN) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	680 const Type* t = _igvn->type(n);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	681 if (t->make_ptr() != NULL) {
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	682 add_local_var_and_edge(n, PointsToNode::NoEscape, adr, NULL);
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	683 }
7eca5de9e0b6 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() roland parents: 6268 diff changeset	684 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	685 const Type *adr_type = _igvn->type(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	686 adr_type = adr_type->make_ptr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	687 if (adr_type->isa_oopptr() \|\|
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	688 (opcode == Op_StoreP \|\| opcode == Op_StoreN \|\| opcode == Op_StoreNKlass) &&
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	689 (adr_type == TypeRawPtr::NOTNULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	690 adr->in(AddPNode::Address)->is_Proj() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	691 adr->in(AddPNode::Address)->in(0)->is_Allocate())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	692 // Point Address to Value
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	693 PointsToNode* adr_ptn = ptnode_adr(adr->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	694 assert(adr_ptn != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	695 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	696 Node *val = n->in(MemNode::ValueIn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	697 PointsToNode* ptn = ptnode_adr(val->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	698 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	699 add_edge(adr_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	700 break;
5954 ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	701 } else if ((opcode == Op_StoreP) && (adr_type == TypeRawPtr::BOTTOM)) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	702 // Stored value escapes in unsafe access.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	703 Node *val = n->in(MemNode::ValueIn);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	704 PointsToNode* ptn = ptnode_adr(val->_idx);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	705 assert(ptn != NULL, "node should be registered");
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	706 ptn->set_escape_state(PointsToNode::GlobalEscape);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	707 // Add edge to object for unsafe access with offset.
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	708 PointsToNode* adr_ptn = ptnode_adr(adr->_idx);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	709 assert(adr_ptn != NULL, "node should be registered");
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	710 if (adr_ptn->is_Field()) {
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	711 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	712 add_edge(adr_ptn, ptn);
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	713 }
ed4c92f54c2d 7154997: assert(false) failed: not G1 barrier raw StoreP kvn parents: 5948 diff changeset	714 break;
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	715 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	716 ELSE_FAIL("Op_StoreP");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	717 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	718 case Op_AryEq:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	719 case Op_StrComp:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	720 case Op_StrEquals:
7637 b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	721 case Op_StrIndexOf:
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	722 case Op_EncodeISOArray: {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	723 // 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	724 // 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	725 // 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	726 for (uint i = 2; i < n->req(); i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	727 Node* adr = n->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	728 const Type* at = _igvn->type(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	729 if (!adr->is_top() && at->isa_ptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	730 assert(at == Type::TOP \|\| at == TypePtr::NULL_PTR \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	731 at->isa_ptr() != NULL, "expecting a pointer");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	732 if (adr->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	733 adr = get_addp_base(adr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	734 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	735 PointsToNode* ptn = ptnode_adr(adr->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	736 assert(ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	737 add_edge(n_ptn, ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	738 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	739 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	740 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	741 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	742 default: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	743 // 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	744 // miss some edges when they were created.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	745 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	746 n->dump(1);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	747 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	748 guarantee(false, "unknown node");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	749 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	750 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	751 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	752 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	753
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	754 void ConnectionGraph::add_call_node(CallNode* call) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	755 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	756 uint call_idx = call->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	757 if (call->is_Allocate()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	758 Node* k = call->in(AllocateNode::KlassNode);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	759 const TypeKlassPtr* kt = k->bottom_type()->isa_klassptr();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	760 assert(kt != NULL, "TypeKlassPtr required.");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	761 ciKlass* cik = kt->klass();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	762 PointsToNode::EscapeState es = PointsToNode::NoEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	763 bool scalar_replaceable = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	764 if (call->is_AllocateArray()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	765 if (!cik->is_array_klass()) { // StressReflectiveCode
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	766 es = PointsToNode::GlobalEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	767 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	768 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	769 if (length < 0 \|\| length > EliminateAllocationArraySizeLimit) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	770 // 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	771 scalar_replaceable = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	772 }
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 } else { // Allocate instance
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	775 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	776 !cik->is_instance_klass() \|\| // StressReflectiveCode
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	777 cik->as_instance_klass()->has_finalizer()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	778 es = PointsToNode::GlobalEscape;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	779 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	780 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	781 add_java_object(call, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	782 PointsToNode* ptn = ptnode_adr(call_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	783 if (!scalar_replaceable && ptn->scalar_replaceable()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	784 ptn->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	785 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	786 } else if (call->is_CallStaticJava()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	787 // Call nodes could be different types:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	788 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	789 // 1. CallDynamicJavaNode (what happened during call is unknown):
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	790 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	791 // - 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	792 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	793 // - all oop arguments are escaping globally;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	794 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	795 // 2. CallStaticJavaNode (execute bytecode analysis if possible):
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	796 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	797 // - 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	798 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	799 // - 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	800 // - 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	801 // during call is returned;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	802 // - 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	803 // 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	804 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	805 // - 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	806 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	807 // 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	808 // 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	809 ciMethod* meth = call->as_CallJava()->method();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	810 if (meth == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	811 const char* name = call->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	812 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	813 // Returns a newly allocated unescaped object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	814 add_java_object(call, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	815 ptnode_adr(call_idx)->set_scalar_replaceable(false);
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	816 } else if (meth->is_boxing_method()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	817 // Returns boxing object
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	818 add_java_object(call, PointsToNode::NoEscape);
4122 cc81b9c09bbb 7112478: after 7105605 JRuby bench_define_method_methods.rb fails with NPE kvn parents: 4115 diff changeset	819 } else {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	820 BCEscapeAnalyzer* call_analyzer = meth->get_bcea();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	821 call_analyzer->copy_dependencies(_compile->dependencies());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	822 if (call_analyzer->is_return_allocated()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	823 // Returns a newly allocated unescaped object, simply
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	824 // update dependency information.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	825 // 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	826 // 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	827 add_java_object(call, PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	828 ptnode_adr(call_idx)->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	829 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	830 // Determine whether any arguments are returned.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	831 const TypeTuple* d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	832 bool ret_arg = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	833 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	834 if (d->field_at(i)->isa_ptr() != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	835 call_analyzer->is_arg_returned(i - TypeFunc::Parms)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	836 ret_arg = true;
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	839 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	840 if (ret_arg) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	841 add_local_var(call, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	842 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	843 // Returns unknown object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	844 map_ideal_node(call, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	845 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	846 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	847 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	848 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	849 // 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	850 // returned value is unknown and globally escapes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	851 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	852 map_ideal_node(call, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	853 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	854 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	855
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	856 void ConnectionGraph::process_call_arguments(CallNode *call) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	857 bool is_arraycopy = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	858 switch (call->Opcode()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	859 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	860 case Op_Allocate:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	861 case Op_AllocateArray:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	862 case Op_Lock:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	863 case Op_Unlock:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	864 assert(false, "should be done already");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	865 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	866 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	867 case Op_CallLeafNoFP:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	868 is_arraycopy = (call->as_CallLeaf()->_name != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	869 strstr(call->as_CallLeaf()->_name, "arraycopy") != 0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	870 // fall through
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	871 case Op_CallLeaf: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	872 // 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	873 // Adjust escape state for outgoing arguments.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	874 const TypeTuple * d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	875 bool src_has_oops = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	876 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	877 const Type* at = d->field_at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	878 Node *arg = call->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	879 const Type *aat = _igvn->type(arg);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	880 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	881 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	882 if (arg->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	883 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	884 // 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	885 // after the allocation before Initialize and CheckCastPP nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	886 // Or normal arraycopy for object arrays case.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	887 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	888 // 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	889 // 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	890 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	891 arg = get_addp_base(arg);
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 PointsToNode* arg_ptn = ptnode_adr(arg->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	894 assert(arg_ptn != NULL, "should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	895 PointsToNode::EscapeState arg_esc = arg_ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	896 if (is_arraycopy \|\| arg_esc < PointsToNode::ArgEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	897 assert(aat == Type::TOP \|\| aat == TypePtr::NULL_PTR \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	898 aat->isa_ptr() != NULL, "expecting an Ptr");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	899 bool arg_has_oops = aat->isa_oopptr() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	900 (aat->isa_oopptr()->klass() == NULL \|\| aat->isa_instptr() \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	901 (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	902 if (i == TypeFunc::Parms) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	903 src_has_oops = arg_has_oops;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	904 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	905 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	906 // 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	907 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	908 // arraycopy(char[],0,Object*,0,size);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	909 // arraycopy(Object*,0,char[],0,size);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	910 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	911 // Don't add edges in such cases.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	912 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	913 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	914 arg_has_oops && (i > TypeFunc::Parms);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	915 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	916 if (!(is_arraycopy \|\|
6894 a3ecd773a7b9 7184394: add intrinsics to use AES instructions kvn parents: 6848 diff changeset	917 (call->as_CallLeaf()->_name != NULL &&
a3ecd773a7b9 7184394: add intrinsics to use AES instructions kvn parents: 6848 diff changeset	918 (strcmp(call->as_CallLeaf()->_name, "g1_wb_pre") == 0 \|\|
a3ecd773a7b9 7184394: add intrinsics to use AES instructions kvn parents: 6848 diff changeset	919 strcmp(call->as_CallLeaf()->_name, "g1_wb_post") == 0 \|\|
a3ecd773a7b9 7184394: add intrinsics to use AES instructions kvn parents: 6848 diff changeset	920 strcmp(call->as_CallLeaf()->_name, "aescrypt_encryptBlock") == 0 \|\|
a3ecd773a7b9 7184394: add intrinsics to use AES instructions kvn parents: 6848 diff changeset	921 strcmp(call->as_CallLeaf()->_name, "aescrypt_decryptBlock") == 0 \|\|
a3ecd773a7b9 7184394: add intrinsics to use AES instructions kvn parents: 6848 diff changeset	922 strcmp(call->as_CallLeaf()->_name, "cipherBlockChaining_encryptAESCrypt") == 0 \|\|
a3ecd773a7b9 7184394: add intrinsics to use AES instructions kvn parents: 6848 diff changeset	923 strcmp(call->as_CallLeaf()->_name, "cipherBlockChaining_decryptAESCrypt") == 0)
a3ecd773a7b9 7184394: add intrinsics to use AES instructions kvn parents: 6848 diff changeset	924 ))) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	925 call->dump();
6894 a3ecd773a7b9 7184394: add intrinsics to use AES instructions kvn parents: 6848 diff changeset	926 fatal(err_msg_res("EA unexpected CallLeaf %s", call->as_CallLeaf()->_name));
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	927 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	928 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	929 // Always process arraycopy's destination object since
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	930 // 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	931 // source object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	932 if (arg_esc >= PointsToNode::ArgEscape &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	933 !arg_is_arraycopy_dest) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	934 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	935 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	936 set_escape_state(arg_ptn, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	937 if (arg_is_arraycopy_dest) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	938 Node* src = call->in(TypeFunc::Parms);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	939 if (src->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	940 src = get_addp_base(src);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	941 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	942 PointsToNode* src_ptn = ptnode_adr(src->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	943 assert(src_ptn != NULL, "should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	944 if (arg_ptn != src_ptn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	945 // Special arraycopy edge:
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	946 // 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	947 // 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	948 // 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	949 // escape state of fields in source object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	950 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	951 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	952 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	953 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	954 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	955 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	956 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	957 case Op_CallStaticJava: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	958 // 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	959 // 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	960 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	961 const char* name = call->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	962 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	963 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	964 ciMethod* meth = call->as_CallJava()->method();
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	965 if ((meth != NULL) && meth->is_boxing_method()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	966 break; // Boxing methods do not modify any oops.
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	967 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	968 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	969 // 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	970 if (call_analyzer != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	971 PointsToNode* call_ptn = ptnode_adr(call->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	972 const TypeTuple* d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	973 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	974 const Type* at = d->field_at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	975 int k = i - TypeFunc::Parms;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	976 Node* arg = call->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	977 PointsToNode* arg_ptn = ptnode_adr(arg->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	978 if (at->isa_ptr() != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	979 call_analyzer->is_arg_returned(k)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	980 // The call returns arguments.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	981 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	982 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	983 assert(arg_ptn != NULL, "node should be registered");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	984 add_edge(call_ptn, arg_ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	985 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	986 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	987 if (at->isa_oopptr() != NULL &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	988 arg_ptn->escape_state() < PointsToNode::GlobalEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	989 if (!call_analyzer->is_arg_stack(k)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	990 // The argument global escapes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	991 set_escape_state(arg_ptn, PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	992 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	993 set_escape_state(arg_ptn, PointsToNode::ArgEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	994 if (!call_analyzer->is_arg_local(k)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	995 // 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	996 set_fields_escape_state(arg_ptn, PointsToNode::GlobalEscape);
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	999 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1000 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1001 if (call_ptn != NULL && call_ptn->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1002 // The call returns arguments.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1003 assert(call_ptn->edge_count() > 0, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1004 if (!call_analyzer->is_return_local()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1005 // Returns also unknown object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1006 add_edge(call_ptn, phantom_obj);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1007 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1008 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1009 break;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1010 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1011 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1012 default: {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1013 // 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	1014 // 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	1015 // globally escape.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1016 const TypeTuple* d = call->tf()->domain();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1017 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	1018 const Type* at = d->field_at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1019 if (at->isa_oopptr() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1020 Node* arg = call->in(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1021 if (arg->is_AddP()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1022 arg = get_addp_base(arg);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1023 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1024 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	1025 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	1026 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1027 }
4122 cc81b9c09bbb 7112478: after 7105605 JRuby bench_define_method_methods.rb fails with NPE kvn parents: 4115 diff changeset	1028 }
cc81b9c09bbb 7112478: after 7105605 JRuby bench_define_method_methods.rb fails with NPE kvn parents: 4115 diff changeset	1029 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1030 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1031
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1032
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1033 // Finish Graph construction.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1034 bool ConnectionGraph::complete_connection_graph(
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1035 GrowableArray<PointsToNode*>& ptnodes_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1036 GrowableArray<JavaObjectNode*>& non_escaped_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1037 GrowableArray<JavaObjectNode*>& java_objects_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1038 GrowableArray<FieldNode*>& oop_fields_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1039 // 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	1040 // 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	1041 // 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	1042 // bailout Escape Analysis.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1043 // 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	1044 #define CG_BUILD_ITER_LIMIT 20
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1045 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1046 #define CG_BUILD_TIME_LIMIT 60.0
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1047 #else
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1048 #define CG_BUILD_TIME_LIMIT 30.0
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1049 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1050
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1051 // 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	1052 // 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	1053 // Field nodes which reference phantom_object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1054 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	1055 return false; // Nothing to do.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1056 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1057 // Now propagate references to all JavaObject nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1058 int java_objects_length = java_objects_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1059 elapsedTimer time;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1060 int new_edges = 1;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1061 int iterations = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1062 do {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1063 while ((new_edges > 0) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1064 (iterations++ < CG_BUILD_ITER_LIMIT) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1065 (time.seconds() < CG_BUILD_TIME_LIMIT)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1066 time.start();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1067 new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1068 // 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	1069 // 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	1070 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	1071 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	1072 JavaObjectNode* ptn = java_objects_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1073 new_edges += add_java_object_edges(ptn, true);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1074 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1075 if (new_edges > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1076 // 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	1077 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	1078 return false; // Nothing to do.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1079 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1080 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1081 time.stop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1082 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1083 if ((iterations < CG_BUILD_ITER_LIMIT) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1084 (time.seconds() < CG_BUILD_TIME_LIMIT)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1085 time.start();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1086 // Find fields which have unknown value.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1087 int fields_length = oop_fields_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1088 for (int next = 0; next < fields_length; next++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1089 FieldNode* field = oop_fields_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1090 if (field->edge_count() == 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1091 new_edges += find_field_value(field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1092 // 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	1093 // 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	1094 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1095 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1096 time.stop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1097 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1098 new_edges = 0; // Bailout
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1099 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1100 } while (new_edges > 0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1101
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1102 // Bailout if passed limits.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1103 if ((iterations >= CG_BUILD_ITER_LIMIT) \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1104 (time.seconds() >= CG_BUILD_TIME_LIMIT)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1105 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1106 if (C->log() != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1107 C->log()->begin_elem("connectionGraph_bailout reason='reached ");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1108 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	1109 C->log()->end_elem(" limit'");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1110 }
6895 006174cfe979 7163534: VM could crashes assert(false) failed: infinite EA connection graph build kvn parents: 6894 diff changeset	1111 assert(ExitEscapeAnalysisOnTimeout, err_msg_res("infinite EA connection graph build (%f sec, %d iterations) with %d nodes and worklist size %d",
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1112 time.seconds(), iterations, nodes_size(), ptnodes_worklist.length()));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1113 // Possible infinite build_connection_graph loop,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1114 // bailout (no changes to ideal graph were made).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1115 return false;
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 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1118 if (Verbose && PrintEscapeAnalysis) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1119 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	1120 iterations, nodes_size(), ptnodes_worklist.length());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1121 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1122 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1123
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1124 #undef CG_BUILD_ITER_LIMIT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1125 #undef CG_BUILD_TIME_LIMIT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1126
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1127 // 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	1128 int non_escaped_length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1129 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	1130 JavaObjectNode* ptn = non_escaped_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1131 PointsToNode::EscapeState es = ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1132 assert(es <= PointsToNode::ArgEscape, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1133 if (es == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1134 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	1135 // 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	1136 // 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	1137 add_java_object_edges(null_obj, false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1138 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1139 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1140 Node* n = ptn->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1141 if (n->is_Allocate()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1142 // 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	1143 // 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	1144 // expanded no MemBarStoreStore is added.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1145 InitializeNode* ini = n->as_Allocate()->initialization();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1146 if (ini != NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1147 ini->set_does_not_escape();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1148 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1149 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1150 return true; // Finished graph construction.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1151 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1152
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1153 // 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	1154 // 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	1155 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	1156 GrowableArray<JavaObjectNode*>& non_escaped_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1157 GrowableArray<PointsToNode*> escape_worklist;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1158 // 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	1159 int ptnodes_length = ptnodes_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1160 for (int next = 0; next < ptnodes_length; ++next) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1161 PointsToNode* ptn = ptnodes_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1162 if (ptn->escape_state() >= PointsToNode::ArgEscape \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1163 ptn->fields_escape_state() >= PointsToNode::ArgEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1164 escape_worklist.push(ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1165 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1166 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1167 // Set escape states to referenced nodes (edges list).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1168 while (escape_worklist.length() > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1169 PointsToNode* ptn = escape_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1170 PointsToNode::EscapeState es = ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1171 PointsToNode::EscapeState field_es = ptn->fields_escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1172 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	1173 es >= PointsToNode::ArgEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1174 // 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	1175 if (add_edge(ptn, phantom_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1176 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1177 add_field_uses_to_worklist(ptn->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1178 }
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 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	1181 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1182 if (e->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1183 assert(ptn->arraycopy_dst(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1184 // Propagate only fields escape state through arraycopy edge.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1185 if (e->fields_escape_state() < field_es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1186 set_fields_escape_state(e, field_es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1187 escape_worklist.push(e);
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 } else if (es >= field_es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1190 // 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	1191 if (e->escape_state() < es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1192 set_escape_state(e, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1193 escape_worklist.push(e);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1194 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1195 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1196 // Propagate field escape state.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1197 bool es_changed = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1198 if (e->fields_escape_state() < field_es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1199 set_fields_escape_state(e, field_es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1200 es_changed = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1201 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1202 if ((e->escape_state() < field_es) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1203 e->is_Field() && ptn->is_JavaObject() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1204 e->as_Field()->is_oop()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1205 // Change escape state of referenced fileds.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1206 set_escape_state(e, field_es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1207 es_changed = true;;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1208 } else if (e->escape_state() < es) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1209 set_escape_state(e, es);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1210 es_changed = true;;
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 if (es_changed) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1213 escape_worklist.push(e);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1214 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1215 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1216 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1217 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1218 // Remove escaped objects from non_escaped list.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1219 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	1220 JavaObjectNode* ptn = non_escaped_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1221 if (ptn->escape_state() >= PointsToNode::GlobalEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1222 non_escaped_worklist.delete_at(next);
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 if (ptn->escape_state() == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1225 // 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	1226 find_init_values(ptn, phantom_obj, NULL);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1227 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1228 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1229 return (non_escaped_worklist.length() > 0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1230 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1231
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1232 // 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	1233 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	1234 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1235 if (populate_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1236 // Populate _worklist by uses of jobj's uses.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1237 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	1238 PointsToNode* use = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1239 if (use->is_Arraycopy())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1240 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1241 add_uses_to_worklist(use);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1242 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	1243 // 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	1244 // related field nodes (same base and offset).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1245 add_field_uses_to_worklist(use->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1246 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1247 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1248 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1249 while(_worklist.length() > 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1250 PointsToNode* use = _worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1251 if (PointsToNode::is_base_use(use)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1252 // 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	1253 use = PointsToNode::get_use_node(use)->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1254 if (add_base(use->as_Field(), jobj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1255 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1256 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1257 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1258 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1259 assert(!use->is_JavaObject(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1260 if (use->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1261 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	1262 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1263 // 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	1264 if (add_edge(use, jobj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1265 jobj->set_arraycopy_src();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1266 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1267 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1268 // and stop here.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1269 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1270 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1271 if (!add_edge(use, jobj))
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1272 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	1273 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1274 if (use->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1275 add_uses_to_worklist(use);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1276 if (use->arraycopy_dst()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1277 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	1278 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1279 if (e->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1280 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	1281 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1282 // 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	1283 if (add_edge(jobj, e)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1284 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1285 jobj->set_arraycopy_dst();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1286 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1287 }
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 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1291 // Added new edge to stored in field values.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1292 // 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	1293 // related field nodes (same base and offset).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1294 add_field_uses_to_worklist(use->as_Field());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1295 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1296 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1297 return new_edges;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1298 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1299
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1300 // Put on worklist all related field nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1301 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	1302 assert(field->is_oop(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1303 int offset = field->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1304 add_uses_to_worklist(field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1305 // 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	1306 // 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	1307 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	1308 PointsToNode* base = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1309 add_fields_to_worklist(field, base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1310 // 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	1311 // 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	1312 // 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	1313 if (base->arraycopy_src()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1314 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	1315 PointsToNode* arycp = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1316 if (arycp->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1317 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	1318 PointsToNode* abase = k.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1319 if (abase->arraycopy_dst() && abase != base) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1320 // Look for the same arracopy reference.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1321 add_fields_to_worklist(field, abase);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1322 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1323 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1324 }
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1327 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1328 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1329
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1330 // Put on worklist all related field nodes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1331 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	1332 int offset = field->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1333 if (base->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1334 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	1335 PointsToNode* f = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1336 if (PointsToNode::is_base_use(f)) { // Field
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1337 f = PointsToNode::get_use_node(f);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1338 if (f == field \|\| !f->as_Field()->is_oop())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1339 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1340 int offs = f->as_Field()->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1341 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	1342 add_to_worklist(f);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1343 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1344 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1345 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1346 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1347 assert(base->is_JavaObject(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1348 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	1349 // this field's content globally escapes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1350 (base != phantom_obj) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1351 // NULL object node does not have fields.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1352 (base != null_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1353 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	1354 PointsToNode* f = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1355 // 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	1356 // does not update value in source object field.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1357 if (f->is_Arraycopy()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1358 assert(base->arraycopy_dst(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1359 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1360 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1361 if (f == field \|\| !f->as_Field()->is_oop())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1362 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1363 int offs = f->as_Field()->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1364 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	1365 add_to_worklist(f);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1366 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1367 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1368 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1369 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1370 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1371
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1372 // Find fields which have unknown value.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1373 int ConnectionGraph::find_field_value(FieldNode* field) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1374 // Escaped fields should have init value already.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1375 assert(field->escape_state() == PointsToNode::NoEscape, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1376 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1377 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	1378 PointsToNode* base = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1379 if (base->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1380 // 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	1381 if (base->ideal_node()->is_Allocate())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1382 return 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1383 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	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 if (add_edge(field, phantom_obj)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1387 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1388 new_edges++;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1389 add_field_uses_to_worklist(field);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1390 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1391 return new_edges;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1392 }
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 // Find fields initializing values for allocations.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1395 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	1396 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	1397 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1398 Node* alloc = pta->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1399 if (init_val == phantom_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1400 // 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	1401 if (alloc->is_Allocate())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1402 return 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1403 assert(alloc->as_CallStaticJava(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1404 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1405 if (alloc->as_CallStaticJava()->method() == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1406 const char* name = alloc->as_CallStaticJava()->_name;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1407 assert(strncmp(name, "_multianewarray", 15) == 0, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1408 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1409 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1410 // 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	1411 // unknown values in fields.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1412 for (EdgeIterator i(pta); i.has_next(); i.next()) {
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1413 PointsToNode* field = i.get();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1414 if (field->is_Field() && field->as_Field()->is_oop()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1415 if (add_edge(field, phantom_obj)) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1416 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1417 new_edges++;
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1418 add_field_uses_to_worklist(field->as_Field());
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1422 return new_edges;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1423 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1424 assert(init_val == null_obj, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1425 // 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	1426 if (!alloc->is_Allocate())
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1427 return 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1428
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1429 InitializeNode* ini = alloc->as_Allocate()->initialization();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1430 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1431 bool visited_bottom_offset = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1432 GrowableArray<int> offsets_worklist;
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 // 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	1435 // 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	1436 // 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	1437 // captured by Initialize node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1438 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1439 for (EdgeIterator i(pta); i.has_next(); i.next()) {
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1440 PointsToNode* field = i.get(); // Field (AddP)
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1441 if (!field->is_Field() \|\| !field->as_Field()->is_oop())
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1442 continue; // Not oop field
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1443 int offset = field->as_Field()->offset();
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1444 if (offset == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1445 if (!visited_bottom_offset) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1446 // OffsetBot is used to reference array's element,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1447 // 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	1448 // known which element is referenced.
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1449 if (add_edge(field, null_obj)) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1450 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1451 new_edges++;
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1452 add_field_uses_to_worklist(field->as_Field());
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1453 visited_bottom_offset = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1454 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1455 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1456 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1457 // Check only oop fields.
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1458 const Type* adr_type = field->ideal_node()->as_AddP()->bottom_type();
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1459 if (adr_type->isa_rawptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1460 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1461 // 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	1462 // since it should be recorded already
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1463 Node* base = get_addp_base(field->ideal_node());
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1464 assert(adr_type->isa_rawptr() && base->is_Proj() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1465 (base->in(0) == alloc),"unexpected pointer type");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1466 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1467 continue;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1468 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1469 if (!offsets_worklist.contains(offset)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1470 offsets_worklist.append(offset);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1471 Node* value = NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1472 if (ini != NULL) {
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1473 // StoreP::memory_type() == T_ADDRESS
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1474 BasicType ft = UseCompressedOops ? T_NARROWOOP : T_ADDRESS;
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1475 Node* store = ini->find_captured_store(offset, type2aelembytes(ft, true), phase);
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1476 // Make sure initializing store has the same type as this AddP.
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1477 // This AddP may reference non existing field because it is on a
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1478 // dead branch of bimorphic call which is not eliminated yet.
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1479 if (store != NULL && store->is_Store() &&
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1480 store->as_Store()->memory_type() == ft) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1481 value = store->in(MemNode::ValueIn);
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1482 #ifdef ASSERT
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1483 if (VerifyConnectionGraph) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1484 // Verify that AddP already points to all objects the value points to.
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1485 PointsToNode* val = ptnode_adr(value->_idx);
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1486 assert((val != NULL), "should be processed already");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1487 PointsToNode* missed_obj = NULL;
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1488 if (val->is_JavaObject()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1489 if (!field->points_to(val->as_JavaObject())) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1490 missed_obj = val;
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1491 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1492 } else {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1493 if (!val->is_LocalVar() \|\| (val->edge_count() == 0)) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1494 tty->print_cr("----------init store has invalid value -----");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1495 store->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1496 val->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1497 assert(val->is_LocalVar() && (val->edge_count() > 0), "should be processed already");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1498 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1499 for (EdgeIterator j(val); j.has_next(); j.next()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1500 PointsToNode* obj = j.get();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1501 if (obj->is_JavaObject()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1502 if (!field->points_to(obj->as_JavaObject())) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1503 missed_obj = obj;
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1504 break;
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1505 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1506 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1507 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1508 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1509 if (missed_obj != NULL) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1510 tty->print_cr("----------field---------------------------------");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1511 field->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1512 tty->print_cr("----------missed referernce to object-----------");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1513 missed_obj->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1514 tty->print_cr("----------object referernced by init store -----");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1515 store->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1516 val->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1517 assert(!field->points_to(missed_obj->as_JavaObject()), "missed JavaObject reference");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1518 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1519 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1520 #endif
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1521 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1522 // There could be initializing stores which follow allocation.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1523 // 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	1524 // by Initialize node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1525 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1526 // 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	1527 // 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	1528 // that compare pointers optimization works correctly.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1529 }
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 if (value == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1532 // A field's initializing value was not recorded. Add NULL.
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1533 if (add_edge(field, null_obj)) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1534 // New edge was added
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1535 new_edges++;
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1536 add_field_uses_to_worklist(field->as_Field());
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1537 }
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1540 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1541 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1542 return new_edges;
0 a61af66fc99e Initial load duke parents: diff changeset	1543 }
a61af66fc99e Initial load duke parents: diff changeset	1544
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1545 // 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	1546 void ConnectionGraph::adjust_scalar_replaceable_state(JavaObjectNode* jobj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1547 // 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	1548 // 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	1549
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1550 // 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	1551 // 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	1552 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1553 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	1554 PointsToNode* use = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1555 assert(!use->is_Arraycopy(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1556 if (use->is_Field()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1557 FieldNode* field = use->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1558 assert(field->is_oop() && field->scalar_replaceable() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1559 field->fields_escape_state() == PointsToNode::NoEscape, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1560 if (field->offset() == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1561 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1562 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1563 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1564 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1565 assert(use->is_Field() \|\| use->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1566 // 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	1567 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	1568 PointsToNode* ptn = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1569 if (ptn->is_JavaObject() && ptn != jobj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1570 // Mark all objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1571 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1572 ptn->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1573 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1574 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1575 if (!jobj->scalar_replaceable()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1576 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1577 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1578 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1579
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1580 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	1581 // 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	1582 FieldNode* field = j.get()->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1583 int offset = field->as_Field()->offset();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1584
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1585 // 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	1586 // offset (array's element is accessed in loop).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1587 if (offset == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1588 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1589 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1590 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1591 // 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	1592 // 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	1593 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1594 Node* n = field->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1595 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	1596 if (n->fast_out(i)->is_LoadStore()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1597 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1598 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1599 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1600 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1601
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1602 // 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	1603 // the false positive result (set not scalar replaceable)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1604 // 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	1605 // 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	1606 // when stores happened on different control branches.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1607 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1608 // 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	1609 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1610 // Point p[] = new Point[1];
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1611 // 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	1612 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1613 // 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	1614 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1615 // Point p[] = new Point[1];
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1616 // 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	1617 //
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1618 if (field->base_count() > 1) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1619 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	1620 PointsToNode* base = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1621 // Don't take into account LocalVar nodes which
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1622 // 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	1623 // this field's base by now.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1624 if (base->is_JavaObject() && base != jobj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1625 // Mark all bases.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1626 jobj->set_scalar_replaceable(false);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1627 base->set_scalar_replaceable(false);
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1633
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1634 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1635 void ConnectionGraph::verify_connection_graph(
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1636 GrowableArray<PointsToNode*>& ptnodes_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1637 GrowableArray<JavaObjectNode*>& non_escaped_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1638 GrowableArray<JavaObjectNode*>& java_objects_worklist,
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1639 GrowableArray<Node*>& addp_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1640 // 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	1641 int java_objects_length = java_objects_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1642 int non_escaped_length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1643 int new_edges = 0;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1644 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	1645 JavaObjectNode* ptn = java_objects_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1646 new_edges += add_java_object_edges(ptn, true);
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 assert(new_edges == 0, "graph was not complete");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1649 // Verify that escape state is final.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1650 int length = non_escaped_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1651 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	1652 assert((non_escaped_length == non_escaped_worklist.length()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1653 (non_escaped_length == length) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1654 (_worklist.length() == 0), "escape state was not final");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1655
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1656 // Verify fields information.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1657 int addp_length = addp_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1658 for (int next = 0; next < addp_length; ++next ) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1659 Node* n = addp_worklist.at(next);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1660 FieldNode* field = ptnode_adr(n->_idx)->as_Field();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1661 if (field->is_oop()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1662 // Verify that field has all bases
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1663 Node* base = get_addp_base(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1664 PointsToNode* ptn = ptnode_adr(base->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1665 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1666 assert(field->has_base(ptn->as_JavaObject()), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1667 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1668 assert(ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1669 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	1670 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1671 if (e->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1672 assert(field->has_base(e->as_JavaObject()), "sanity");
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 // Verify that all fields have initializing values.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1677 if (field->edge_count() == 0) {
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1678 tty->print_cr("----------field does not have references----------");
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1679 field->dump();
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1680 for (BaseIterator i(field); i.has_next(); i.next()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1681 PointsToNode* base = i.get();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1682 tty->print_cr("----------field has next base---------------------");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1683 base->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1684 if (base->is_JavaObject() && (base != phantom_obj) && (base != null_obj)) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1685 tty->print_cr("----------base has fields-------------------------");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1686 for (EdgeIterator j(base); j.has_next(); j.next()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1687 j.get()->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1688 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1689 tty->print_cr("----------base has references---------------------");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1690 for (UseIterator j(base); j.has_next(); j.next()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1691 j.get()->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1692 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1693 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1694 }
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1695 for (UseIterator i(field); i.has_next(); i.next()) {
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1696 i.get()->dump();
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	1697 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1698 assert(field->edge_count() > 0, "sanity");
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1703 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1704
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1705 // Optimize ideal graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1706 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	1707 GrowableArray<Node*>& storestore_worklist) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1708 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1709 PhaseIterGVN* igvn = _igvn;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1710 if (EliminateLocks) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1711 // Mark locks before changing ideal graph.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1712 int cnt = C->macro_count();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1713 for( int i=0; i < cnt; i++ ) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1714 Node *n = C->macro_node(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1715 if (n->is_AbstractLock()) { // Lock and Unlock nodes
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1716 AbstractLockNode* alock = n->as_AbstractLock();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1717 if (!alock->is_non_esc_obj()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1718 if (not_global_escape(alock->obj_node())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1719 assert(!alock->is_eliminated() \|\| alock->is_coarsened(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1720 // 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	1721 // 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	1722 // to eliminate all associated locks/unlocks.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1723 alock->set_non_esc_obj();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1724 }
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1728 }
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 if (OptimizePtrCompare) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1731 // Add ConI(#CC_GT) and ConI(#CC_EQ).
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1732 _pcmp_neq = igvn->makecon(TypeInt::CC_GT);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1733 _pcmp_eq = igvn->makecon(TypeInt::CC_EQ);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1734 // Optimize objects compare.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1735 while (ptr_cmp_worklist.length() != 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1736 Node *n = ptr_cmp_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1737 Node *res = optimize_ptr_compare(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1738 if (res != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1739 #ifndef PRODUCT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1740 if (PrintOptimizePtrCompare) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1741 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	1742 if (Verbose) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1743 n->dump(1);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1744 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1745 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1746 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1747 igvn->replace_node(n, res);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1748 }
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 // cleanup
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1751 if (_pcmp_neq->outcnt() == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1752 igvn->hash_delete(_pcmp_neq);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1753 if (_pcmp_eq->outcnt() == 0)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1754 igvn->hash_delete(_pcmp_eq);
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
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1757 // 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	1758 // escape status of associated AllocateNode and optimize out
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1759 // MemBarStoreStore node if the allocated object never escapes.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1760 while (storestore_worklist.length() != 0) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1761 Node *n = storestore_worklist.pop();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1762 MemBarStoreStoreNode *storestore = n ->as_MemBarStoreStore();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1763 Node *alloc = storestore->in(MemBarNode::Precedent)->in(0);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1764 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	1765 if (not_global_escape(alloc)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1766 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	1767 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	1768 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	1769 igvn->register_new_node_with_optimizer(mb);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1770 igvn->replace_node(storestore, mb);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1771 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1772 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1773 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1774
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1775 // Optimize objects compare.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1776 Node* ConnectionGraph::optimize_ptr_compare(Node* n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1777 assert(OptimizePtrCompare, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1778 PointsToNode* ptn1 = ptnode_adr(n->in(1)->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1779 PointsToNode* ptn2 = ptnode_adr(n->in(2)->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1780 JavaObjectNode* jobj1 = unique_java_object(n->in(1));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1781 JavaObjectNode* jobj2 = unique_java_object(n->in(2));
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1782 assert(ptn1->is_JavaObject() \|\| ptn1->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1783 assert(ptn2->is_JavaObject() \|\| ptn2->is_LocalVar(), "sanity");
0 a61af66fc99e Initial load duke parents: diff changeset	1784
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1785 // Check simple cases first.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1786 if (jobj1 != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1787 if (jobj1->escape_state() == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1788 if (jobj1 == jobj2) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1789 // Comparing the same not escaping object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1790 return _pcmp_eq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1791 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1792 Node* obj = jobj1->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1793 // Comparing not escaping allocation.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1794 if ((obj->is_Allocate() \|\| obj->is_CallStaticJava()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1795 !ptn2->points_to(jobj1)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1796 return _pcmp_neq; // This includes nullness check.
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1800 if (jobj2 != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1801 if (jobj2->escape_state() == PointsToNode::NoEscape) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1802 Node* obj = jobj2->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1803 // Comparing not escaping allocation.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1804 if ((obj->is_Allocate() \|\| obj->is_CallStaticJava()) &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1805 !ptn1->points_to(jobj2)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1806 return _pcmp_neq; // This includes nullness check.
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1809 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1810 if (jobj1 != NULL && jobj1 != phantom_obj &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1811 jobj2 != NULL && jobj2 != phantom_obj &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1812 jobj1->ideal_node()->is_Con() &&
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1813 jobj2->ideal_node()->is_Con()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1814 // 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	1815 // 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	1816 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	1817 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	1818 assert(t1 != NULL && t2 != NULL, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1819 if (t1->make_ptr() == t2->make_ptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1820 return _pcmp_eq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1821 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1822 return _pcmp_neq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1823 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1824 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1825 if (ptn1->meet(ptn2)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1826 return NULL; // Sets are not disjoint
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1827 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1828
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1829 // Sets are disjoint.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1830 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	1831 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	1832 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	1833 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	1834 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	1835 set2_has_unknown_ptr && set1_has_null_ptr) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1836 // Check nullness of unknown object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1837 return NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1838 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1839
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1840 // Disjointness by itself is not sufficient since
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1841 // alias analysis is not complete for escaped objects.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1842 // Disjoint sets are definitely unrelated only when
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1843 // 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	1844 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	1845 if (ptn1->non_escaping_allocation()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1846 return _pcmp_neq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1847 }
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 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	1850 if (ptn2->non_escaping_allocation()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1851 return _pcmp_neq;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1852 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1853 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1854 return NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1855 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1856
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1857 // Connection Graph constuction functions.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1858
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1859 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	1860 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1861 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1862 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	1863 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1864 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1865 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1866 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	1867 _nodes.at_put(n->_idx, ptadr);
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 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	1871 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1872 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1873 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	1874 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1875 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1876 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1877 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	1878 _nodes.at_put(n->_idx, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1879 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1880
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1881 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	1882 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1883 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1884 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	1885 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1886 }
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1887 bool unsafe = false;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1888 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	1889 if (unsafe) {
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1890 es = PointsToNode::GlobalEscape;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1891 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1892 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1893 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	1894 _nodes.at_put(n->_idx, field);
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 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	1898 PointsToNode* src, PointsToNode* dst) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1899 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	1900 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	1901 PointsToNode* ptadr = _nodes.at(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1902 if (ptadr != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1903 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	1904 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1905 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1906 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1907 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	1908 _nodes.at_put(n->_idx, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1909 // Add edge from arraycopy node to source object.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1910 (void)add_edge(ptadr, src);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1911 src->set_arraycopy_src();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1912 // Add edge from destination object to arraycopy node.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1913 (void)add_edge(dst, ptadr);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1914 dst->set_arraycopy_dst();
0 a61af66fc99e Initial load duke parents: diff changeset	1915 }
a61af66fc99e Initial load duke parents: diff changeset	1916
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1917 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	1918 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	1919 BasicType bt = T_INT;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1920 if (offset == Type::OffsetBot) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1921 // Check only oop fields.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1922 if (!adr_type->isa_aryptr() \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1923 (adr_type->isa_aryptr()->klass() == NULL) \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1924 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	1925 // 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	1926 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	1927 bt = T_OBJECT;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1928 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1929 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1930 } else if (offset != oopDesc::klass_offset_in_bytes()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1931 if (adr_type->isa_instptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1932 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	1933 if (field != NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1934 bt = field->layout_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1935 } else {
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1936 // 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	1937 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	1938 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	1939 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	1940 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	1941 bt = T_OBJECT;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1942 (*unsafe) = true;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1943 break;
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1944 }
1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1945 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1946 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1947 } else if (adr_type->isa_aryptr()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1948 if (offset == arrayOopDesc::length_offset_in_bytes()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1949 // Ignore array length load.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1950 } 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	1951 // Ignore first AddP.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1952 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1953 const Type* elemtype = adr_type->isa_aryptr()->elem();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1954 bt = elemtype->array_element_basic_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1955 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1956 } 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	1957 // Allocation initialization, ThreadLocal field access, unsafe access
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1958 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	1959 int opcode = n->fast_out(i)->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1960 if (opcode == Op_StoreP \|\| opcode == Op_LoadP \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1961 opcode == Op_StoreN \|\| opcode == Op_LoadN) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1962 bt = T_OBJECT;
6266 1d7922586cf6 7023639: JSR 292 method handle invocation needs a fast path for compiled code twisti parents: 5954 diff changeset	1963 break;
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1964 }
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 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1968 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	1969 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1970
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1971 // Returns unique pointed java object or NULL.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1972 JavaObjectNode* ConnectionGraph::unique_java_object(Node *n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1973 assert(!_collecting, "should not call when contructed graph");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1974 // 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	1975 uint idx = n->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1976 if (idx >= nodes_size()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1977 return NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1978 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1979 PointsToNode* ptn = ptnode_adr(idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1980 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1981 return ptn->as_JavaObject();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1982 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1983 assert(ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1984 // Check all java objects it points to.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1985 JavaObjectNode* jobj = NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1986 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	1987 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1988 if (e->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1989 if (jobj == NULL) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1990 jobj = e->as_JavaObject();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1991 } else if (jobj != e) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1992 return NULL;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1993 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1994 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1995 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1996 return jobj;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1997 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1998
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	1999 // 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	2000 bool PointsToNode::non_escaping_allocation() {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2001 if (is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2002 Node* n = ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2003 if (n->is_Allocate() \|\| n->is_CallStaticJava()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2004 return (escape_state() == PointsToNode::NoEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2005 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2006 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2007 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2008 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2009 assert(is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2010 // Check all java objects it points to.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2011 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	2012 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2013 if (e->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2014 Node* n = e->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2015 if ((e->escape_state() != PointsToNode::NoEscape) \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2016 !(n->is_Allocate() \|\| n->is_CallStaticJava())) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2017 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2018 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2019 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2020 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2021 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2022 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2023
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2024 // 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	2025 bool ConnectionGraph::not_global_escape(Node *n) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2026 assert(!_collecting, "should not call during graph construction");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2027 // 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	2028 uint idx = n->_idx;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2029 if (idx >= nodes_size()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2030 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2031 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2032 PointsToNode* ptn = ptnode_adr(idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2033 PointsToNode::EscapeState es = ptn->escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2034 // 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	2035 if (es >= PointsToNode::GlobalEscape)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2036 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2037 if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2038 return true; // (es < PointsToNode::GlobalEscape);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2039 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2040 assert(ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2041 // Check all java objects it points to.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2042 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	2043 if (i.get()->escape_state() >= PointsToNode::GlobalEscape)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2044 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2045 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2046 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2047 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2048
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2049
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2050 // Helper functions
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2051
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2052 // 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	2053 bool PointsToNode::points_to(JavaObjectNode* ptn) const {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2054 if (is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2055 return (this == ptn);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2056 }
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	2057 assert(is_LocalVar() \|\| is_Field(), "sanity");
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2058 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	2059 if (i.get() == ptn)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2060 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2061 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2062 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2063 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2064
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2065 // 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	2066 bool PointsToNode::meet(PointsToNode* ptn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2067 if (this == ptn) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2068 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2069 } else if (ptn->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2070 return this->points_to(ptn->as_JavaObject());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2071 } else if (this->is_JavaObject()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2072 return ptn->points_to(this->as_JavaObject());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2073 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2074 assert(this->is_LocalVar() && ptn->is_LocalVar(), "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2075 int ptn_count = ptn->edge_count();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2076 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	2077 PointsToNode* this_e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2078 for (int j = 0; j < ptn_count; j++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2079 if (this_e == ptn->edge(j))
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2080 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2081 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2082 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2083 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2084 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2085
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2086 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2087 // 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	2088 bool FieldNode::has_base(JavaObjectNode* jobj) const {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2089 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	2090 if (i.get() == jobj)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2091 return true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2092 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2093 return false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2094 }
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2095 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2096
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2097 int ConnectionGraph::address_offset(Node* adr, PhaseTransform *phase) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2098 const Type *adr_type = phase->type(adr);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2099 if (adr->is_AddP() && adr_type->isa_oopptr() == NULL &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2100 adr->in(AddPNode::Address)->is_Proj() &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2101 adr->in(AddPNode::Address)->in(0)->is_Allocate()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2102 // 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	2103 // 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	2104 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	2105 assert(offs != Type::OffsetBot \|\|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2106 adr->in(AddPNode::Address)->in(0)->is_AllocateArray(),
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2107 "offset must be a constant or it is initialization of array");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2108 return offs;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2109 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2110 const TypePtr *t_ptr = adr_type->isa_ptr();
0 a61af66fc99e Initial load duke parents: diff changeset	2111 assert(t_ptr != NULL, "must be a pointer type");
a61af66fc99e Initial load duke parents: diff changeset	2112 return t_ptr->offset();
a61af66fc99e Initial load duke parents: diff changeset	2113 }
a61af66fc99e Initial load duke parents: diff changeset	2114
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2115 Node* ConnectionGraph::get_addp_base(Node *addp) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2116 assert(addp->is_AddP(), "must be AddP");
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 // AddP cases for Base and Address inputs:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2119 // case #1. Direct object's field reference:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2120 // Allocate
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2121 // \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2122 // Proj #5 ( oop result )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2123 // \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2124 // CheckCastPP (cast to instance type)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2125 // \| \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2126 // AddP ( base == address )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2127 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2128 // case #2. Indirect object's field reference:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2129 // Phi
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 // CastPP (cast to instance type)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2132 // \| \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2133 // AddP ( base == address )
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 // case #3. Raw object's field reference for Initialize node:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2136 // Allocate
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2137 // \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2138 // Proj #5 ( oop result )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2139 // top \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2140 // \ \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2141 // AddP ( base == top )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2142 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2143 // case #4. Array's element reference:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2144 // {CheckCastPP \| CastPP}
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2145 // \| \| \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2146 // \| AddP ( array's element offset )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2147 // \| \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2148 // AddP ( array's offset )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2149 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2150 // case #5. Raw object's field reference for arraycopy stub call:
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2151 // The inline_native_clone() case when the arraycopy stub is called
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2152 // after the allocation before Initialize and CheckCastPP nodes.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2153 // Allocate
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2154 // \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2155 // Proj #5 ( oop result )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2156 // \| \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2157 // AddP ( base == address )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2158 //
77 36cd3cc4d27b 6679854: assert in escape.cpp:397 kvn parents: 65 diff changeset	2159 // case #6. Constant Pool, ThreadLocal, CastX2P or
36cd3cc4d27b 6679854: assert in escape.cpp:397 kvn parents: 65 diff changeset	2160 // Raw object's field reference:
36cd3cc4d27b 6679854: assert in escape.cpp:397 kvn parents: 65 diff changeset	2161 // {ConP, ThreadLocal, CastX2P, raw Load}
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2162 // top \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2163 // \ \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2164 // AddP ( base == top )
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2165 //
77 36cd3cc4d27b 6679854: assert in escape.cpp:397 kvn parents: 65 diff changeset	2166 // case #7. Klass's field reference.
36cd3cc4d27b 6679854: assert in escape.cpp:397 kvn parents: 65 diff changeset	2167 // LoadKlass
36cd3cc4d27b 6679854: assert in escape.cpp:397 kvn parents: 65 diff changeset	2168 // \| \|
36cd3cc4d27b 6679854: assert in escape.cpp:397 kvn parents: 65 diff changeset	2169 // AddP ( base == address )
36cd3cc4d27b 6679854: assert in escape.cpp:397 kvn parents: 65 diff changeset	2170 //
164 c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions kvn parents: 163 diff changeset	2171 // 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	2172 // LoadNKlass
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions kvn parents: 163 diff changeset	2173 // \|
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions kvn parents: 163 diff changeset	2174 // DecodeN
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions kvn parents: 163 diff changeset	2175 // \| \|
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions kvn parents: 163 diff changeset	2176 // AddP ( base == address )
c436414a719e 6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions kvn parents: 163 diff changeset	2177 //
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2178 Node *base = addp->in(AddPNode::Base);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2179 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	2180 base = addp->in(AddPNode::Address);
957 159d56b94894 6880574: C2 assert in escape.cpp:445 on linux-amd64 kvn parents: 866 diff changeset	2181 while (base->is_AddP()) {
159d56b94894 6880574: C2 assert in escape.cpp:445 on linux-amd64 kvn parents: 866 diff changeset	2182 // 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	2183 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	2184 base = base->in(AddPNode::Address);
957 159d56b94894 6880574: C2 assert in escape.cpp:445 on linux-amd64 kvn parents: 866 diff changeset	2185 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2186 Node* uncast_base = base->uncast();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2187 int opcode = uncast_base->Opcode();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2188 assert(opcode == Op_ConP \|\| opcode == Op_ThreadLocal \|\|
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	2189 opcode == Op_CastX2P \|\| uncast_base->is_DecodeNarrowPtr() \|\|
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2190 (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	2191 (uncast_base->is_Proj() && uncast_base->in(0)->is_Allocate()), "sanity");
0 a61af66fc99e Initial load duke parents: diff changeset	2192 }
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2193 return base;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2194 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2195
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2196 Node* ConnectionGraph::find_second_addp(Node* addp, Node* n) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2197 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	2198 Node* addp2 = addp->raw_out(0);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2199 if (addp->outcnt() == 1 && addp2->is_AddP() &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2200 addp2->in(AddPNode::Base) == n &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2201 addp2->in(AddPNode::Address) == addp) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2202 assert(addp->in(AddPNode::Base) == n, "expecting the same base");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2203 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2204 // Find array's offset to push it on worklist first and
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2205 // as result process an array's element offset first (pushed second)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2206 // to avoid CastPP for the array's offset.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2207 // Otherwise the inserted CastPP (LocalVar) will point to what
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2208 // the AddP (Field) points to. Which would be wrong since
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2209 // the algorithm expects the CastPP has the same point as
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2210 // as AddP's base CheckCastPP (LocalVar).
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2211 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2212 // ArrayAllocation
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2213 // \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2214 // CheckCastPP
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2215 // \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2216 // memProj (from ArrayAllocation CheckCastPP)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2217 // \| \|\|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2218 // \| \|\| Int (element index)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2219 // \| \|\| \| ConI (log(element size))
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2220 // \| \|\| \| /
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2221 // \| \|\| LShift
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2222 // \| \|\| /
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2223 // \| AddP (array's element offset)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2224 // \| \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2225 // \| \| ConI (array's offset: #12(32-bits) or #24(64-bits))
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2226 // \| / /
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2227 // AddP (array's offset)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2228 // \|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2229 // Load/Store (memory operation on array's element)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2230 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2231 return addp2;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2232 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2233 return NULL;
0 a61af66fc99e Initial load duke parents: diff changeset	2234 }
a61af66fc99e Initial load duke parents: diff changeset	2235
a61af66fc99e Initial load duke parents: diff changeset	2236 //
a61af66fc99e Initial load duke parents: diff changeset	2237 // Adjust the type and inputs of an AddP which computes the
a61af66fc99e Initial load duke parents: diff changeset	2238 // address of a field of an instance
a61af66fc99e Initial load duke parents: diff changeset	2239 //
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2240 bool ConnectionGraph::split_AddP(Node addp, Node base) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2241 PhaseGVN* igvn = _igvn;
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2242 const TypeOopPtr *base_t = igvn->type(base)->isa_oopptr();
223 1dd146f17531 6716441: error in meet with +DoEscapeAnalysis kvn parents: 221 diff changeset	2243 assert(base_t != NULL && base_t->is_known_instance(), "expecting instance oopptr");
0 a61af66fc99e Initial load duke parents: diff changeset	2244 const TypeOopPtr *t = igvn->type(addp)->isa_oopptr();
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2245 if (t == NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2246 // 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	2247 // compute an appropriate address type (cases #3 and #5).
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2248 assert(igvn->type(addp) == TypeRawPtr::NOTNULL, "must be raw pointer");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2249 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	2250 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	2251 assert(offs != Type::OffsetBot, "offset must be a constant");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2252 t = base_t->add_offset(offs)->is_oopptr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2253 }
223 1dd146f17531 6716441: error in meet with +DoEscapeAnalysis kvn parents: 221 diff changeset	2254 int inst_id = base_t->instance_id();
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis kvn parents: 221 diff changeset	2255 assert(!t->is_known_instance() \|\| t->instance_id() == inst_id,
0 a61af66fc99e Initial load duke parents: diff changeset	2256 "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	2257
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type") kvn parents: 253 diff changeset	2258 // 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	2259 // 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	2260 // 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	2261 // 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	2262 //
605 98cb887364d3 6810672: Comment typos twisti parents: 584 diff changeset	2263 // 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	2264 // 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	2265 // 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	2266 //
988 7e309ecb83ce 6879362: assert(!klass_is_exact(),"only non-exact klass") kvn parents: 957 diff changeset	2267 // 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	2268 // 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	2269 // (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	2270 //
293 c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type") kvn parents: 253 diff changeset	2271 // 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	2272 // 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	2273 //
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type") kvn parents: 253 diff changeset	2274 if (!t->is_known_instance() &&
988 7e309ecb83ce 6879362: assert(!klass_is_exact(),"only non-exact klass") kvn parents: 957 diff changeset	2275 !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	2276 return false; // bail out
c3e045194476 6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type") kvn parents: 253 diff changeset	2277 }
0 a61af66fc99e Initial load duke parents: diff changeset	2278 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	2279 // 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	2280 // 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	2281 // has side effect.
0 a61af66fc99e Initial load duke parents: diff changeset	2282 int alias_idx = _compile->get_alias_index(tinst);
a61af66fc99e Initial load duke parents: diff changeset	2283 igvn->set_type(addp, tinst);
a61af66fc99e Initial load duke parents: diff changeset	2284 // record the allocation in the node map
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2285 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	2286 // 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	2287 Node *abase = addp->in(AddPNode::Base);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2288 Node *adr = addp->in(AddPNode::Address);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2289 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	2290 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	2291 // Skip AddP cases #3 and #5.
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2292 } else {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2293 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	2294 if (abase != base) {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2295 igvn->hash_delete(addp);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2296 addp->set_req(AddPNode::Base, base);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2297 if (abase == adr) {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2298 addp->set_req(AddPNode::Address, base);
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2299 } else {
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2300 // 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	2301 #ifdef ASSERT
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2302 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	2303 assert(adr->is_AddP() && atype != NULL &&
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2304 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	2305 #endif
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2306 }
b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2307 igvn->hash_insert(addp);
0 a61af66fc99e Initial load duke parents: diff changeset	2308 }
a61af66fc99e Initial load duke parents: diff changeset	2309 }
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2310 // 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	2311 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	2312 return true;
0 a61af66fc99e Initial load duke parents: diff changeset	2313 }
a61af66fc99e Initial load duke parents: diff changeset	2314
a61af66fc99e Initial load duke parents: diff changeset	2315 //
a61af66fc99e Initial load duke parents: diff changeset	2316 // 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	2317 // created phi or an existing phi. Sets create_new to indicate whether a new
0 a61af66fc99e Initial load duke parents: diff changeset	2318 // phi was created. Cache the last newly created phi in the node map.
a61af66fc99e Initial load duke parents: diff changeset	2319 //
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2320 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	2321 Compile *C = _compile;
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2322 PhaseGVN* igvn = _igvn;
0 a61af66fc99e Initial load duke parents: diff changeset	2323 new_created = false;
a61af66fc99e Initial load duke parents: diff changeset	2324 int phi_alias_idx = C->get_alias_index(orig_phi->adr_type());
a61af66fc99e Initial load duke parents: diff changeset	2325 // 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	2326 if (phi_alias_idx == alias_idx) {
0 a61af66fc99e Initial load duke parents: diff changeset	2327 return orig_phi;
a61af66fc99e Initial load duke parents: diff changeset	2328 }
851 fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC kvn parents: 784 diff changeset	2329 // Have we recently created a Phi for this alias index?
0 a61af66fc99e Initial load duke parents: diff changeset	2330 PhiNode *result = get_map_phi(orig_phi->_idx);
a61af66fc99e Initial load duke parents: diff changeset	2331 if (result != NULL && C->get_alias_index(result->adr_type()) == alias_idx) {
a61af66fc99e Initial load duke parents: diff changeset	2332 return result;
a61af66fc99e Initial load duke parents: diff changeset	2333 }
851 fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC kvn parents: 784 diff changeset	2334 // 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	2335 // 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	2336 if (result != NULL) {
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC kvn parents: 784 diff changeset	2337 Node* region = orig_phi->in(0);
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC kvn parents: 784 diff changeset	2338 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	2339 Node* phi = region->fast_out(i);
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC kvn parents: 784 diff changeset	2340 if (phi->is_Phi() &&
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC kvn parents: 784 diff changeset	2341 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	2342 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	2343 return phi->as_Phi();
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC kvn parents: 784 diff changeset	2344 }
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC kvn parents: 784 diff changeset	2345 }
fc4be448891f 6851742: (EA) allocation elimination doesn't work with UseG1GC kvn parents: 784 diff changeset	2346 }
7196 2aff40cb4703 7092905: C2: Keep track of the number of dead nodes bharadwaj parents: 6944 diff changeset	2347 if ((int) (C->live_nodes() + 2*NodeLimitFudgeFactor) > MaxNodeLimit) {
38 b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	2348 if (C->do_escape_analysis() == true && !C->failing()) {
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	2349 // Retry compilation without escape analysis.
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	2350 // 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	2351 // 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	2352 C->record_failure(C2Compiler::retry_no_escape_analysis());
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	2353 }
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	2354 return NULL;
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	2355 }
0 a61af66fc99e Initial load duke parents: diff changeset	2356 orig_phi_worklist.append_if_missing(orig_phi);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2357 const TypePtr *atype = C->get_adr_type(alias_idx);
0 a61af66fc99e Initial load duke parents: diff changeset	2358 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	2359 C->copy_node_notes_to(result, orig_phi);
0 a61af66fc99e Initial load duke parents: diff changeset	2360 igvn->set_type(result, result->bottom_type());
a61af66fc99e Initial load duke parents: diff changeset	2361 record_for_optimizer(result);
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2362 set_map(orig_phi, result);
0 a61af66fc99e Initial load duke parents: diff changeset	2363 new_created = true;
a61af66fc99e Initial load duke parents: diff changeset	2364 return result;
a61af66fc99e Initial load duke parents: diff changeset	2365 }
a61af66fc99e Initial load duke parents: diff changeset	2366
a61af66fc99e Initial load duke parents: diff changeset	2367 //
2459 55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice kvn parents: 2249 diff changeset	2368 // Return a new version of Memory Phi "orig_phi" with the inputs having the
0 a61af66fc99e Initial load duke parents: diff changeset	2369 // specified alias index.
a61af66fc99e Initial load duke parents: diff changeset	2370 //
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2371 PhiNode ConnectionGraph::split_memory_phi(PhiNode orig_phi, int alias_idx, GrowableArray<PhiNode *> &orig_phi_worklist) {
0 a61af66fc99e Initial load duke parents: diff changeset	2372 assert(alias_idx != Compile::AliasIdxBot, "can't split out bottom memory");
a61af66fc99e Initial load duke parents: diff changeset	2373 Compile *C = _compile;
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2374 PhaseGVN* igvn = _igvn;
0 a61af66fc99e Initial load duke parents: diff changeset	2375 bool new_phi_created;
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2376 PhiNode *result = create_split_phi(orig_phi, alias_idx, orig_phi_worklist, new_phi_created);
0 a61af66fc99e Initial load duke parents: diff changeset	2377 if (!new_phi_created) {
a61af66fc99e Initial load duke parents: diff changeset	2378 return result;
a61af66fc99e Initial load duke parents: diff changeset	2379 }
a61af66fc99e Initial load duke parents: diff changeset	2380 GrowableArray<PhiNode *> phi_list;
a61af66fc99e Initial load duke parents: diff changeset	2381 GrowableArray<uint> cur_input;
a61af66fc99e Initial load duke parents: diff changeset	2382 PhiNode *phi = orig_phi;
a61af66fc99e Initial load duke parents: diff changeset	2383 uint idx = 1;
a61af66fc99e Initial load duke parents: diff changeset	2384 bool finished = false;
a61af66fc99e Initial load duke parents: diff changeset	2385 while(!finished) {
a61af66fc99e Initial load duke parents: diff changeset	2386 while (idx < phi->req()) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2387 Node *mem = find_inst_mem(phi->in(idx), alias_idx, orig_phi_worklist);
0 a61af66fc99e Initial load duke parents: diff changeset	2388 if (mem != NULL && mem->is_Phi()) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2389 PhiNode *newphi = create_split_phi(mem->as_Phi(), alias_idx, orig_phi_worklist, new_phi_created);
0 a61af66fc99e Initial load duke parents: diff changeset	2390 if (new_phi_created) {
a61af66fc99e Initial load duke parents: diff changeset	2391 // found an phi for which we created a new split, push current one on worklist and begin
a61af66fc99e Initial load duke parents: diff changeset	2392 // processing new one
a61af66fc99e Initial load duke parents: diff changeset	2393 phi_list.push(phi);
a61af66fc99e Initial load duke parents: diff changeset	2394 cur_input.push(idx);
a61af66fc99e Initial load duke parents: diff changeset	2395 phi = mem->as_Phi();
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2396 result = newphi;
0 a61af66fc99e Initial load duke parents: diff changeset	2397 idx = 1;
a61af66fc99e Initial load duke parents: diff changeset	2398 continue;
a61af66fc99e Initial load duke parents: diff changeset	2399 } else {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2400 mem = newphi;
0 a61af66fc99e Initial load duke parents: diff changeset	2401 }
a61af66fc99e Initial load duke parents: diff changeset	2402 }
38 b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	2403 if (C->failing()) {
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	2404 return NULL;
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	2405 }
0 a61af66fc99e Initial load duke parents: diff changeset	2406 result->set_req(idx++, mem);
a61af66fc99e Initial load duke parents: diff changeset	2407 }
a61af66fc99e Initial load duke parents: diff changeset	2408 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	2409 // verify that the new Phi has an input for each input of the original
a61af66fc99e Initial load duke parents: diff changeset	2410 assert( phi->req() == result->req(), "must have same number of inputs.");
a61af66fc99e Initial load duke parents: diff changeset	2411 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	2412 #endif
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2413 // Check if all new phi's inputs have specified alias index.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2414 // Otherwise use old phi.
0 a61af66fc99e Initial load duke parents: diff changeset	2415 for (uint i = 1; i < phi->req(); i++) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2416 Node* in = result->in(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2417 assert((phi->in(i) == NULL) == (in == NULL), "inputs must correspond.");
0 a61af66fc99e Initial load duke parents: diff changeset	2418 }
a61af66fc99e Initial load duke parents: diff changeset	2419 // we have finished processing a Phi, see if there are any more to do
a61af66fc99e Initial load duke parents: diff changeset	2420 finished = (phi_list.length() == 0 );
a61af66fc99e Initial load duke parents: diff changeset	2421 if (!finished) {
a61af66fc99e Initial load duke parents: diff changeset	2422 phi = phi_list.pop();
a61af66fc99e Initial load duke parents: diff changeset	2423 idx = cur_input.pop();
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2424 PhiNode *prev_result = get_map_phi(phi->_idx);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2425 prev_result->set_req(idx++, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2426 result = prev_result;
0 a61af66fc99e Initial load duke parents: diff changeset	2427 }
a61af66fc99e Initial load duke parents: diff changeset	2428 }
a61af66fc99e Initial load duke parents: diff changeset	2429 return result;
a61af66fc99e Initial load duke parents: diff changeset	2430 }
a61af66fc99e Initial load duke parents: diff changeset	2431
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2432 //
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2433 // The next methods are derived from methods in MemNode.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2434 //
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2435 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	2436 Node *mem = mmem;
1815 5867d89c129b 6982537: Crash in Nodestep_through_mergemem never* parents: 1634 diff changeset	2437 // TypeOopPtr::NOTNULL+any is an OOP with unknown offset - generally
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2438 // 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	2439 // alias stuff with it any time soon.
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2440 if (toop->base() != Type::AnyPtr &&
1815 5867d89c129b 6982537: Crash in Nodestep_through_mergemem never* parents: 1634 diff changeset	2441 !(toop->klass() != NULL &&
5867d89c129b 6982537: Crash in Nodestep_through_mergemem never* parents: 1634 diff changeset	2442 toop->klass()->is_java_lang_Object() &&
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2443 toop->offset() == Type::OffsetBot)) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2444 mem = mmem->memory_at(alias_idx);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2445 // Update input if it is progress over what we have now
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2446 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2447 return mem;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2448 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2449
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2450 //
1101 7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2451 // Move memory users to their memory slices.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2452 //
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2453 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	2454 Compile* C = _compile;
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2455 PhaseGVN* igvn = _igvn;
1101 7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2456 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	2457 assert(tp != NULL, "ptr type");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2458 int alias_idx = C->get_alias_index(tp);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2459 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	2460
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2461 // Move users first
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2462 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	2463 Node* use = n->fast_out(i);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2464 if (use->is_MergeMem()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2465 MergeMemNode* mmem = use->as_MergeMem();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2466 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	2467 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	2468 continue; // Nothing to do
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2469 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2470 // Replace previous general reference to mem node.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2471 uint orig_uniq = C->unique();
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2472 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	2473 assert(orig_uniq == C->unique(), "no new nodes");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2474 mmem->set_memory_at(general_idx, m);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2475 --imax;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2476 --i;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2477 } else if (use->is_MemBar()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2478 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	2479 if (use->req() > MemBarNode::Precedent &&
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2480 use->in(MemBarNode::Precedent) == n) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2481 // Don't move related membars.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2482 record_for_optimizer(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2483 continue;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2484 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2485 tp = use->as_MemBar()->adr_type()->isa_ptr();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2486 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	2487 alias_idx == general_idx) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2488 continue; // Nothing to do
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2489 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2490 // Move to general memory slice.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2491 uint orig_uniq = C->unique();
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2492 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	2493 assert(orig_uniq == C->unique(), "no new nodes");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2494 igvn->hash_delete(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2495 imax -= use->replace_edge(n, m);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2496 igvn->hash_insert(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2497 record_for_optimizer(use);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2498 --i;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2499 #ifdef ASSERT
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2500 } else if (use->is_Mem()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2501 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	2502 // Don't move related cardmark.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2503 continue;
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2504 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2505 // Memory nodes should have new memory input.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2506 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	2507 assert(tp != NULL, "ptr type");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2508 int idx = C->get_alias_index(tp);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2509 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	2510 "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	2511 } else if (use->is_Phi()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2512 // Phi nodes should be split and moved already.
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2513 tp = use->as_Phi()->adr_type()->isa_ptr();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2514 assert(tp != NULL, "ptr type");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2515 int idx = C->get_alias_index(tp);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2516 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	2517 } else {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2518 use->dump();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2519 assert(false, "should not be here");
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2520 #endif
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2521 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2522 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2523 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2524
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2525 //
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2526 // Search memory chain of "mem" to find a MemNode whose address
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2527 // is the specified alias index.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2528 //
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2529 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	2530 if (orig_mem == NULL)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2531 return orig_mem;
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2532 Compile* C = _compile;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2533 PhaseGVN* igvn = _igvn;
1815 5867d89c129b 6982537: Crash in Nodestep_through_mergemem never* parents: 1634 diff changeset	2534 const TypeOopPtr *toop = C->get_adr_type(alias_idx)->isa_oopptr();
5867d89c129b 6982537: Crash in Nodestep_through_mergemem never* parents: 1634 diff changeset	2535 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	2536 Node *start_mem = C->start()->proj_out(TypeFunc::Memory);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2537 Node *prev = NULL;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2538 Node *result = orig_mem;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2539 while (prev != result) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2540 prev = result;
253 b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2541 if (result == start_mem)
605 98cb887364d3 6810672: Comment typos twisti parents: 584 diff changeset	2542 break; // hit one of our sentinels
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2543 if (result->is_Mem()) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2544 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	2545 if (at == Type::TOP)
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice kvn parents: 2249 diff changeset	2546 break; // Dead
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice kvn parents: 2249 diff changeset	2547 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	2548 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	2549 if (idx == alias_idx)
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice kvn parents: 2249 diff changeset	2550 break; // Found
55973726c600 6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice kvn parents: 2249 diff changeset	2551 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	2552 !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	2553 break; // Do not skip store to general memory slice.
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2554 }
253 b0fe4deeb9fb 6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.") kvn parents: 247 diff changeset	2555 result = result->in(MemNode::Memory);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2556 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2557 if (!is_instance)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2558 continue; // don't search further for non-instance types
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2559 // skip over a call which does not affect this memory slice
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2560 if (result->is_Proj() && result->as_Proj()->_con == TypeFunc::Memory) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2561 Node *proj_in = result->in(0);
1815 5867d89c129b 6982537: Crash in Nodestep_through_mergemem never* parents: 1634 diff changeset	2562 if (proj_in->is_Allocate() && proj_in->_idx == (uint)toop->instance_id()) {
605 98cb887364d3 6810672: Comment typos twisti parents: 584 diff changeset	2563 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	2564 } else if (proj_in->is_Call()) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2565 CallNode *call = proj_in->as_Call();
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2566 if (!call->may_modify(toop, igvn)) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2567 result = call->in(TypeFunc::Memory);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2568 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2569 } else if (proj_in->is_Initialize()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2570 AllocateNode* alloc = proj_in->as_Initialize()->allocation();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2571 // Stop if this is the initialization for the object instance which
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2572 // which contains this memory slice, otherwise skip over it.
1815 5867d89c129b 6982537: Crash in Nodestep_through_mergemem never* parents: 1634 diff changeset	2573 if (alloc == NULL \|\| alloc->_idx != (uint)toop->instance_id()) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2574 result = proj_in->in(TypeFunc::Memory);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2575 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2576 } else if (proj_in->is_MemBar()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2577 result = proj_in->in(TypeFunc::Memory);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2578 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2579 } else if (result->is_MergeMem()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2580 MergeMemNode *mmem = result->as_MergeMem();
1815 5867d89c129b 6982537: Crash in Nodestep_through_mergemem never* parents: 1634 diff changeset	2581 result = step_through_mergemem(mmem, alias_idx, toop);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2582 if (result == mmem->base_memory()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2583 // Didn't find instance memory, search through general slice recursively.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2584 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	2585 result = find_inst_mem(result, alias_idx, orig_phis);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2586 if (C->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2587 return NULL;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2588 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2589 mmem->set_memory_at(alias_idx, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2590 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2591 } else if (result->is_Phi() &&
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2592 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	2593 Node *un = result->as_Phi()->unique_input(igvn);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2594 if (un != NULL) {
1101 7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2595 orig_phis.append_if_missing(result->as_Phi());
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2596 result = un;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2597 } else {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2598 break;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2599 }
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2600 } else if (result->is_ClearArray()) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2601 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	2602 // Can not bypass initialization of the instance
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2603 // we are looking for.
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2604 break;
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2605 }
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2606 // Otherwise skip it (the call updated 'result' value).
584 49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path") kvn parents: 460 diff changeset	2607 } else if (result->Opcode() == Op_SCMemProj) {
7637 b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2608 Node* mem = result->in(0);
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2609 Node* adr = NULL;
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2610 if (mem->is_LoadStore()) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2611 adr = mem->in(MemNode::Address);
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2612 } else {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2613 assert(mem->Opcode() == Op_EncodeISOArray, "sanity");
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2614 adr = mem->in(3); // Memory edge corresponds to destination array
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2615 }
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2616 const Type *at = igvn->type(adr);
584 49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path") kvn parents: 460 diff changeset	2617 if (at != Type::TOP) {
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path") kvn parents: 460 diff changeset	2618 assert (at->isa_ptr() != NULL, "pointer type required.");
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path") kvn parents: 460 diff changeset	2619 int idx = C->get_alias_index(at->is_ptr());
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path") kvn parents: 460 diff changeset	2620 assert(idx != alias_idx, "Object is not scalar replaceable if a LoadStore node access its field");
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path") kvn parents: 460 diff changeset	2621 break;
49a36a80b0c7 6802499: EA: assert(false,"unknown node on this path") kvn parents: 460 diff changeset	2622 }
7637 b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2623 result = mem->in(MemNode::Memory);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2624 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2625 }
247 02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric kvn parents: 245 diff changeset	2626 if (result->is_Phi()) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2627 PhiNode *mphi = result->as_Phi();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2628 assert(mphi->bottom_type() == Type::MEMORY, "memory phi required");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2629 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	2630 if (!is_instance) {
247 02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric kvn parents: 245 diff changeset	2631 // 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	2632 // during Phase 4 if needed.
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric kvn parents: 245 diff changeset	2633 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	2634 } 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	2635 // 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	2636 result = split_memory_phi(mphi, alias_idx, orig_phis);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2637 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2638 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2639 // the result is either MemNode, PhiNode, InitializeNode.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2640 return result;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2641 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2642
0 a61af66fc99e Initial load duke parents: diff changeset	2643 //
a61af66fc99e Initial load duke parents: diff changeset	2644 // Convert the types of unescaped object to instance types where possible,
a61af66fc99e Initial load duke parents: diff changeset	2645 // propagate the new type information through the graph, and update memory
a61af66fc99e Initial load duke parents: diff changeset	2646 // edges and MergeMem inputs to reflect the new type.
a61af66fc99e Initial load duke parents: diff changeset	2647 //
a61af66fc99e Initial load duke parents: diff changeset	2648 // We start with allocations (and calls which may be allocations) on alloc_worklist.
a61af66fc99e Initial load duke parents: diff changeset	2649 // The processing is done in 4 phases:
a61af66fc99e Initial load duke parents: diff changeset	2650 //
a61af66fc99e Initial load duke parents: diff changeset	2651 // Phase 1: Process possible allocations from alloc_worklist. Create instance
a61af66fc99e Initial load duke parents: diff changeset	2652 // types for the CheckCastPP for allocations where possible.
a61af66fc99e Initial load duke parents: diff changeset	2653 // Propagate the the new types through users as follows:
a61af66fc99e Initial load duke parents: diff changeset	2654 // casts and Phi: push users on alloc_worklist
a61af66fc99e Initial load duke parents: diff changeset	2655 // AddP: cast Base and Address inputs to the instance type
a61af66fc99e Initial load duke parents: diff changeset	2656 // push any AddP users on alloc_worklist and push any memnode
a61af66fc99e Initial load duke parents: diff changeset	2657 // users onto memnode_worklist.
a61af66fc99e Initial load duke parents: diff changeset	2658 // Phase 2: Process MemNode's from memnode_worklist. compute new address type and
a61af66fc99e Initial load duke parents: diff changeset	2659 // search the Memory chain for a store with the appropriate type
a61af66fc99e Initial load duke parents: diff changeset	2660 // address type. If a Phi is found, create a new version with
605 98cb887364d3 6810672: Comment typos twisti parents: 584 diff changeset	2661 // the appropriate memory slices from each of the Phi inputs.
0 a61af66fc99e Initial load duke parents: diff changeset	2662 // For stores, process the users as follows:
a61af66fc99e Initial load duke parents: diff changeset	2663 // MemNode: push on memnode_worklist
a61af66fc99e Initial load duke parents: diff changeset	2664 // MergeMem: push on mergemem_worklist
a61af66fc99e Initial load duke parents: diff changeset	2665 // Phase 3: Process MergeMem nodes from mergemem_worklist. Walk each memory slice
a61af66fc99e Initial load duke parents: diff changeset	2666 // moving the first node encountered of each instance type to the
a61af66fc99e Initial load duke parents: diff changeset	2667 // the input corresponding to its alias index.
a61af66fc99e Initial load duke parents: diff changeset	2668 // appropriate memory slice.
a61af66fc99e Initial load duke parents: diff changeset	2669 // Phase 4: Update the inputs of non-instance memory Phis and the Memory input of memnodes.
a61af66fc99e Initial load duke parents: diff changeset	2670 //
a61af66fc99e Initial load duke parents: diff changeset	2671 // In the following example, the CheckCastPP nodes are the cast of allocation
a61af66fc99e Initial load duke parents: diff changeset	2672 // results and the allocation of node 29 is unescaped and eligible to be an
a61af66fc99e Initial load duke parents: diff changeset	2673 // instance type.
a61af66fc99e Initial load duke parents: diff changeset	2674 //
a61af66fc99e Initial load duke parents: diff changeset	2675 // We start with:
a61af66fc99e Initial load duke parents: diff changeset	2676 //
a61af66fc99e Initial load duke parents: diff changeset	2677 // 7 Parm #memory
a61af66fc99e Initial load duke parents: diff changeset	2678 // 10 ConI "12"
a61af66fc99e Initial load duke parents: diff changeset	2679 // 19 CheckCastPP "Foo"
a61af66fc99e Initial load duke parents: diff changeset	2680 // 20 AddP _ 19 19 10 Foo+12 alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2681 // 29 CheckCastPP "Foo"
a61af66fc99e Initial load duke parents: diff changeset	2682 // 30 AddP _ 29 29 10 Foo+12 alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2683 //
a61af66fc99e Initial load duke parents: diff changeset	2684 // 40 StoreP 25 7 20 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2685 // 50 StoreP 35 40 30 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2686 // 60 StoreP 45 50 20 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2687 // 70 LoadP _ 60 30 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2688 // 80 Phi 75 50 60 Memory alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2689 // 90 LoadP _ 80 30 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2690 // 100 LoadP _ 80 20 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2691 //
a61af66fc99e Initial load duke parents: diff changeset	2692 //
a61af66fc99e Initial load duke parents: diff changeset	2693 // Phase 1 creates an instance type for node 29 assigning it an instance id of 24
a61af66fc99e Initial load duke parents: diff changeset	2694 // and creating a new alias index for node 30. This gives:
a61af66fc99e Initial load duke parents: diff changeset	2695 //
a61af66fc99e Initial load duke parents: diff changeset	2696 // 7 Parm #memory
a61af66fc99e Initial load duke parents: diff changeset	2697 // 10 ConI "12"
a61af66fc99e Initial load duke parents: diff changeset	2698 // 19 CheckCastPP "Foo"
a61af66fc99e Initial load duke parents: diff changeset	2699 // 20 AddP _ 19 19 10 Foo+12 alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2700 // 29 CheckCastPP "Foo" iid=24
a61af66fc99e Initial load duke parents: diff changeset	2701 // 30 AddP _ 29 29 10 Foo+12 alias_index=6 iid=24
a61af66fc99e Initial load duke parents: diff changeset	2702 //
a61af66fc99e Initial load duke parents: diff changeset	2703 // 40 StoreP 25 7 20 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2704 // 50 StoreP 35 40 30 ... alias_index=6
a61af66fc99e Initial load duke parents: diff changeset	2705 // 60 StoreP 45 50 20 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2706 // 70 LoadP _ 60 30 ... alias_index=6
a61af66fc99e Initial load duke parents: diff changeset	2707 // 80 Phi 75 50 60 Memory alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2708 // 90 LoadP _ 80 30 ... alias_index=6
a61af66fc99e Initial load duke parents: diff changeset	2709 // 100 LoadP _ 80 20 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2710 //
a61af66fc99e Initial load duke parents: diff changeset	2711 // In phase 2, new memory inputs are computed for the loads and stores,
a61af66fc99e Initial load duke parents: diff changeset	2712 // And a new version of the phi is created. In phase 4, the inputs to
a61af66fc99e Initial load duke parents: diff changeset	2713 // node 80 are updated and then the memory nodes are updated with the
a61af66fc99e Initial load duke parents: diff changeset	2714 // values computed in phase 2. This results in:
a61af66fc99e Initial load duke parents: diff changeset	2715 //
a61af66fc99e Initial load duke parents: diff changeset	2716 // 7 Parm #memory
a61af66fc99e Initial load duke parents: diff changeset	2717 // 10 ConI "12"
a61af66fc99e Initial load duke parents: diff changeset	2718 // 19 CheckCastPP "Foo"
a61af66fc99e Initial load duke parents: diff changeset	2719 // 20 AddP _ 19 19 10 Foo+12 alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2720 // 29 CheckCastPP "Foo" iid=24
a61af66fc99e Initial load duke parents: diff changeset	2721 // 30 AddP _ 29 29 10 Foo+12 alias_index=6 iid=24
a61af66fc99e Initial load duke parents: diff changeset	2722 //
a61af66fc99e Initial load duke parents: diff changeset	2723 // 40 StoreP 25 7 20 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2724 // 50 StoreP 35 7 30 ... alias_index=6
a61af66fc99e Initial load duke parents: diff changeset	2725 // 60 StoreP 45 40 20 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2726 // 70 LoadP _ 50 30 ... alias_index=6
a61af66fc99e Initial load duke parents: diff changeset	2727 // 80 Phi 75 40 60 Memory alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2728 // 120 Phi 75 50 50 Memory alias_index=6
a61af66fc99e Initial load duke parents: diff changeset	2729 // 90 LoadP _ 120 30 ... alias_index=6
a61af66fc99e Initial load duke parents: diff changeset	2730 // 100 LoadP _ 80 20 ... alias_index=4
a61af66fc99e Initial load duke parents: diff changeset	2731 //
a61af66fc99e Initial load duke parents: diff changeset	2732 void ConnectionGraph::split_unique_types(GrowableArray<Node *> &alloc_worklist) {
a61af66fc99e Initial load duke parents: diff changeset	2733 GrowableArray<Node *> memnode_worklist;
a61af66fc99e Initial load duke parents: diff changeset	2734 GrowableArray<PhiNode *> orig_phis;
1921 e4fcbeb5a698 6991188: C2 Crashes while compiling method kvn parents: 1815 diff changeset	2735 PhaseIterGVN *igvn = _igvn;
0 a61af66fc99e Initial load duke parents: diff changeset	2736 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	2737 Arena* arena = Thread::current()->resource_area();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	2738 VectorSet visited(arena);
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2739 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	2740 uint unique_old = _compile->unique();
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2741
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2742 // Phase 1: Process possible allocations from alloc_worklist.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2743 // Create instance types for the CheckCastPP for allocations where possible.
244 524eca34ea76 6684714: Optimize EA Connection Graph build performance kvn parents: 223 diff changeset	2744 //
524eca34ea76 6684714: Optimize EA Connection Graph build performance kvn parents: 223 diff changeset	2745 // (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	2746 // 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	2747 // see the comment in find_second_addp().)
524eca34ea76 6684714: Optimize EA Connection Graph build performance kvn parents: 223 diff changeset	2748 //
0 a61af66fc99e Initial load duke parents: diff changeset	2749 while (alloc_worklist.length() != 0) {
a61af66fc99e Initial load duke parents: diff changeset	2750 Node *n = alloc_worklist.pop();
a61af66fc99e Initial load duke parents: diff changeset	2751 uint ni = n->_idx;
a61af66fc99e Initial load duke parents: diff changeset	2752 if (n->is_Call()) {
a61af66fc99e Initial load duke parents: diff changeset	2753 CallNode *alloc = n->as_Call();
a61af66fc99e Initial load duke parents: diff changeset	2754 // copy escape information to call node
244 524eca34ea76 6684714: Optimize EA Connection Graph build performance kvn parents: 223 diff changeset	2755 PointsToNode* ptn = ptnode_adr(alloc->_idx);
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2756 PointsToNode::EscapeState es = ptn->escape_state();
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2757 // We have an allocation or call which returns a Java object,
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2758 // see if it is unescaped.
4058 59e515ee9354 7059047: EA: can't find initializing store with several CheckCastPP kvn parents: 4046 diff changeset	2759 if (es != PointsToNode::NoEscape \|\| !ptn->scalar_replaceable())
0 a61af66fc99e Initial load duke parents: diff changeset	2760 continue;
784 b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2761 // 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	2762 n = alloc->result_cast();
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2763 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	2764 if (alloc->is_Allocate()) {
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2765 // 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	2766 // 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	2767 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	2768 }
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2769 if (alloc->is_CallStaticJava()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2770 // Set the scalar_replaceable flag for boxing method
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2771 // so it could be eliminated if it has no uses.
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2772 alloc->as_CallStaticJava()->_is_scalar_replaceable = true;
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2773 }
784 b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2774 continue;
39 76256d272075 6667612: (Escape Analysis) disable loop cloning if it has a scalar replaceable allocation kvn parents: 38 diff changeset	2775 }
784 b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2776 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	2777 assert(!alloc->is_Allocate(), "allocation should have unique type");
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2778 continue;
784 b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2779 }
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2780
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2781 // 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	2782 // 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	2783 // object. Detect this case and use the second cast.
247 02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric kvn parents: 245 diff changeset	2784 // Also detect j.l.reflect.Array.newInstance(jobject, jint) case when
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric kvn parents: 245 diff changeset	2785 // the allocation result is cast to java.lang.Object and then
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric kvn parents: 245 diff changeset	2786 // to the actual Array type.
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2787 if (alloc->is_Allocate() && n->as_Type()->type() == TypeInstPtr::NOTNULL
247 02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric kvn parents: 245 diff changeset	2788 && (alloc->is_AllocateArray() \|\|
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric kvn parents: 245 diff changeset	2789 igvn->type(alloc->in(AllocateNode::KlassNode)) != TypeKlassPtr::OBJECT)) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2790 Node *cast2 = NULL;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2791 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	2792 Node *use = n->fast_out(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2793 if (use->is_CheckCastPP()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2794 cast2 = use;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2795 break;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2796 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2797 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2798 if (cast2 != NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2799 n = cast2;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2800 } else {
784 b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2801 // 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	2802 // (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	2803 // deoptimization without precise type.
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2804 continue;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2805 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2806 }
784 b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2807 if (alloc->is_Allocate()) {
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2808 // 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	2809 // so it could be eliminated.
b2934faac289 6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException kvn parents: 605 diff changeset	2810 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	2811 }
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2812 if (alloc->is_CallStaticJava()) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2813 // Set the scalar_replaceable flag for boxing method
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2814 // so it could be eliminated.
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2815 alloc->as_CallStaticJava()->_is_scalar_replaceable = true;
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2816 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2817 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	2818 // 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	2819 // - a direct allocation (not a call returning an object)
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2820 // - non-escaping
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2821 // - eligible to be a unique type
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2822 // - 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	2823 set_map(alloc, n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2824 set_map(n, alloc);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2825 const TypeOopPtr *t = igvn->type(n)->isa_oopptr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2826 if (t == NULL)
4058 59e515ee9354 7059047: EA: can't find initializing store with several CheckCastPP kvn parents: 4046 diff changeset	2827 continue; // not a TypeOopPtr
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2828 const TypeOopPtr* tinst = t->cast_to_exactness(true)->is_oopptr()->cast_to_instance_id(ni);
0 a61af66fc99e Initial load duke parents: diff changeset	2829 igvn->hash_delete(n);
a61af66fc99e Initial load duke parents: diff changeset	2830 igvn->set_type(n, tinst);
a61af66fc99e Initial load duke parents: diff changeset	2831 n->raise_bottom_type(tinst);
a61af66fc99e Initial load duke parents: diff changeset	2832 igvn->hash_insert(n);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2833 record_for_optimizer(n);
4058 59e515ee9354 7059047: EA: can't find initializing store with several CheckCastPP kvn parents: 4046 diff changeset	2834 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	2835
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2836 // 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	2837 // 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	2838 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	2839 PointsToNode* tgt = e.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2840 Node* use = tgt->ideal_node();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2841 assert(tgt->is_Field() && use->is_AddP(),
163 885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2842 "only AddP nodes are Field edges in CG");
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2843 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	2844 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	2845 if (addp2 != NULL) {
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2846 assert(alloc->is_AllocateArray(),"array allocation was expected");
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2847 alloc_worklist.append_if_missing(addp2);
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2848 }
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2849 alloc_worklist.append_if_missing(use);
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2850 }
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2851 }
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2852
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2853 // An allocation may have an Initialize which has raw stores. Scan
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2854 // the users of the raw allocation result and push AddP users
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2855 // on alloc_worklist.
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2856 Node *raw_result = alloc->proj_out(TypeFunc::Parms);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2857 assert (raw_result != NULL, "must have an allocation result");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2858 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	2859 Node *use = raw_result->fast_out(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2860 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	2861 Node* addp2 = find_second_addp(use, raw_result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2862 if (addp2 != NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2863 assert(alloc->is_AllocateArray(),"array allocation was expected");
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2864 alloc_worklist.append_if_missing(addp2);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2865 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2866 alloc_worklist.append_if_missing(use);
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2867 } else if (use->is_MemBar()) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2868 memnode_worklist.append_if_missing(use);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2869 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2870 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2871 }
0 a61af66fc99e Initial load duke parents: diff changeset	2872 } else if (n->is_AddP()) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2873 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	2874 if (jobj == NULL \|\| jobj == phantom_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2875 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2876 ptnode_adr(get_addp_base(n)->_idx)->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2877 ptnode_adr(n->_idx)->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2878 assert(jobj != NULL && jobj != phantom_obj, "escaped allocation");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2879 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2880 _compile->record_failure(C2Compiler::retry_no_escape_analysis());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2881 return;
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2882 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2883 Node *base = get_map(jobj->idx()); // CheckCastPP node
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2884 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	2885 } else if (n->is_Phi() \|\|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2886 n->is_CheckCastPP() \|\|
168 7793bd37a336 6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops kvn parents: 164 diff changeset	2887 n->is_EncodeP() \|\|
7793bd37a336 6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops kvn parents: 164 diff changeset	2888 n->is_DecodeN() \|\|
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2889 (n->is_ConstraintCast() && n->Opcode() == Op_CastPP)) {
0 a61af66fc99e Initial load duke parents: diff changeset	2890 if (visited.test_set(n->_idx)) {
a61af66fc99e Initial load duke parents: diff changeset	2891 assert(n->is_Phi(), "loops only through Phi's");
a61af66fc99e Initial load duke parents: diff changeset	2892 continue; // already processed
a61af66fc99e Initial load duke parents: diff changeset	2893 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2894 JavaObjectNode* jobj = unique_java_object(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2895 if (jobj == NULL \|\| jobj == phantom_obj) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2896 #ifdef ASSERT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2897 ptnode_adr(n->_idx)->dump();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2898 assert(jobj != NULL && jobj != phantom_obj, "escaped allocation");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2899 #endif
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2900 _compile->record_failure(C2Compiler::retry_no_escape_analysis());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2901 return;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2902 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2903 Node *val = get_map(jobj->idx()); // CheckCastPP node
0 a61af66fc99e Initial load duke parents: diff changeset	2904 TypeNode *tn = n->as_Type();
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2905 const TypeOopPtr* tinst = igvn->type(val)->isa_oopptr();
223 1dd146f17531 6716441: error in meet with +DoEscapeAnalysis kvn parents: 221 diff changeset	2906 assert(tinst != NULL && tinst->is_known_instance() &&
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	2907 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	2908
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2909 const Type *tn_type = igvn->type(tn);
223 1dd146f17531 6716441: error in meet with +DoEscapeAnalysis kvn parents: 221 diff changeset	2910 const TypeOopPtr *tn_t;
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis kvn parents: 221 diff changeset	2911 if (tn_type->isa_narrowoop()) {
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis kvn parents: 221 diff changeset	2912 tn_t = tn_type->make_ptr()->isa_oopptr();
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis kvn parents: 221 diff changeset	2913 } else {
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis kvn parents: 221 diff changeset	2914 tn_t = tn_type->isa_oopptr();
1dd146f17531 6716441: error in meet with +DoEscapeAnalysis kvn parents: 221 diff changeset	2915 }
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2916 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	2917 if (tn_type->isa_narrowoop()) {
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2918 tn_type = tinst->make_narrowoop();
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2919 } else {
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2920 tn_type = tinst;
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2921 }
0 a61af66fc99e Initial load duke parents: diff changeset	2922 igvn->hash_delete(tn);
163 885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2923 igvn->set_type(tn, tn_type);
885ed790ecf0 6695810: null oop passed to encode_heap_oop_not_null kvn parents: 124 diff changeset	2924 tn->set_type(tn_type);
0 a61af66fc99e Initial load duke parents: diff changeset	2925 igvn->hash_insert(tn);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2926 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	2927 } else {
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2928 assert(tn_type == TypePtr::NULL_PTR \|\|
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2929 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	2930 "unexpected type");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2931 continue; // Skip dead path with different type
0 a61af66fc99e Initial load duke parents: diff changeset	2932 }
a61af66fc99e Initial load duke parents: diff changeset	2933 }
a61af66fc99e Initial load duke parents: diff changeset	2934 } else {
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2935 debug_only(n->dump();)
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2936 assert(false, "EA: unexpected node");
0 a61af66fc99e Initial load duke parents: diff changeset	2937 continue;
a61af66fc99e Initial load duke parents: diff changeset	2938 }
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2939 // push allocation's users on appropriate worklist
0 a61af66fc99e Initial load duke parents: diff changeset	2940 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
a61af66fc99e Initial load duke parents: diff changeset	2941 Node *use = n->fast_out(i);
a61af66fc99e Initial load duke parents: diff changeset	2942 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	2943 // Load/store to instance's field
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2944 memnode_worklist.append_if_missing(use);
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2945 } else if (use->is_MemBar()) {
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2946 if (use->in(TypeFunc::Memory) == n) { // Ignore precedent edge
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2947 memnode_worklist.append_if_missing(use);
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	2948 }
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2949 } else if (use->is_AddP() && use->outcnt() > 0) { // No dead nodes
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2950 Node* addp2 = find_second_addp(use, n);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2951 if (addp2 != NULL) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2952 alloc_worklist.append_if_missing(addp2);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2953 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2954 alloc_worklist.append_if_missing(use);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2955 } else if (use->is_Phi() \|\|
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2956 use->is_CheckCastPP() \|\|
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	2957 use->is_EncodeNarrowPtr() \|\|
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6795 diff changeset	2958 use->is_DecodeNarrowPtr() \|\|
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2959 (use->is_ConstraintCast() && use->Opcode() == Op_CastPP)) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2960 alloc_worklist.append_if_missing(use);
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2961 #ifdef ASSERT
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2962 } else if (use->is_Mem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2963 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	2964 } else if (use->is_MergeMem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2965 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	2966 } else if (use->is_SafePoint()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2967 // 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	2968 // (through CheckCastPP nodes) even for debug info.
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2969 Node* m = use->in(TypeFunc::Memory);
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2970 if (m->is_MergeMem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2971 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	2972 }
7637 b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2973 } else if (use->Opcode() == Op_EncodeISOArray) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2974 if (use->in(MemNode::Memory) == n \|\| use->in(3) == n) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2975 // EncodeISOArray overwrites destination array
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2976 memnode_worklist.append_if_missing(use);
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	2977 }
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2978 } else {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2979 uint op = use->Opcode();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2980 if (!(op == Op_CmpP \|\| op == Op_Conv2B \|\|
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2981 op == Op_CastP2X \|\| op == Op_StoreCM \|\|
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2982 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	2983 op == Op_StrEquals \|\| op == Op_StrIndexOf)) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2984 n->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2985 use->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2986 assert(false, "EA: missing allocation reference path");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2987 }
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	2988 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	2989 }
a61af66fc99e Initial load duke parents: diff changeset	2990 }
a61af66fc99e Initial load duke parents: diff changeset	2991
a61af66fc99e Initial load duke parents: diff changeset	2992 }
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	2993 // New alias types were created in split_AddP().
0 a61af66fc99e Initial load duke parents: diff changeset	2994 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	2995 assert(unique_old == _compile->unique(), "there should be no new ideal nodes after Phase 1");
0 a61af66fc99e Initial load duke parents: diff changeset	2996
a61af66fc99e Initial load duke parents: diff changeset	2997 // Phase 2: Process MemNode's from memnode_worklist. compute new address type and
a61af66fc99e Initial load duke parents: diff changeset	2998 // compute new values for Memory inputs (the Memory inputs are not
a61af66fc99e Initial load duke parents: diff changeset	2999 // actually updated until phase 4.)
a61af66fc99e Initial load duke parents: diff changeset	3000 if (memnode_worklist.length() == 0)
a61af66fc99e Initial load duke parents: diff changeset	3001 return; // nothing to do
a61af66fc99e Initial load duke parents: diff changeset	3002 while (memnode_worklist.length() != 0) {
a61af66fc99e Initial load duke parents: diff changeset	3003 Node *n = memnode_worklist.pop();
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3004 if (visited.test_set(n->_idx))
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3005 continue;
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3006 if (n->is_Phi() \|\| n->is_ClearArray()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3007 // 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	3008 } 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	3009 // 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	3010 n = n->as_MemBar()->proj_out(TypeFunc::Memory);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3011 if (n == NULL)
0 a61af66fc99e Initial load duke parents: diff changeset	3012 continue;
7637 b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3013 } else if (n->Opcode() == Op_EncodeISOArray) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3014 // get the memory projection
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3015 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3016 Node *use = n->fast_out(i);
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3017 if (use->Opcode() == Op_SCMemProj) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3018 n = use;
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3019 break;
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3020 }
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3021 }
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3022 assert(n->Opcode() == Op_SCMemProj, "memory projection required");
0 a61af66fc99e Initial load duke parents: diff changeset	3023 } else {
a61af66fc99e Initial load duke parents: diff changeset	3024 assert(n->is_Mem(), "memory node required.");
a61af66fc99e Initial load duke parents: diff changeset	3025 Node *addr = n->in(MemNode::Address);
a61af66fc99e Initial load duke parents: diff changeset	3026 const Type *addr_t = igvn->type(addr);
a61af66fc99e Initial load duke parents: diff changeset	3027 if (addr_t == Type::TOP)
a61af66fc99e Initial load duke parents: diff changeset	3028 continue;
a61af66fc99e Initial load duke parents: diff changeset	3029 assert (addr_t->isa_ptr() != NULL, "pointer type required.");
a61af66fc99e Initial load duke parents: diff changeset	3030 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	3031 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	3032 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	3033 if (_compile->failing()) {
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	3034 return;
b789bcaf2dd9 6667610: (Escape Analysis) retry compilation without EA if it fails kvn parents: 0 diff changeset	3035 }
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3036 if (mem != n->in(MemNode::Memory)) {
1101 7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3037 // 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	3038 // 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	3039 set_map(n, mem);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3040 }
0 a61af66fc99e Initial load duke parents: diff changeset	3041 if (n->is_Load()) {
a61af66fc99e Initial load duke parents: diff changeset	3042 continue; // don't push users
a61af66fc99e Initial load duke parents: diff changeset	3043 } else if (n->is_LoadStore()) {
a61af66fc99e Initial load duke parents: diff changeset	3044 // get the memory projection
a61af66fc99e Initial load duke parents: diff changeset	3045 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
a61af66fc99e Initial load duke parents: diff changeset	3046 Node *use = n->fast_out(i);
a61af66fc99e Initial load duke parents: diff changeset	3047 if (use->Opcode() == Op_SCMemProj) {
a61af66fc99e Initial load duke parents: diff changeset	3048 n = use;
a61af66fc99e Initial load duke parents: diff changeset	3049 break;
a61af66fc99e Initial load duke parents: diff changeset	3050 }
a61af66fc99e Initial load duke parents: diff changeset	3051 }
a61af66fc99e Initial load duke parents: diff changeset	3052 assert(n->Opcode() == Op_SCMemProj, "memory projection required");
a61af66fc99e Initial load duke parents: diff changeset	3053 }
a61af66fc99e Initial load duke parents: diff changeset	3054 }
a61af66fc99e Initial load duke parents: diff changeset	3055 // push user on appropriate worklist
a61af66fc99e Initial load duke parents: diff changeset	3056 for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) {
a61af66fc99e Initial load duke parents: diff changeset	3057 Node *use = n->fast_out(i);
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3058 if (use->is_Phi() \|\| use->is_ClearArray()) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3059 memnode_worklist.append_if_missing(use);
7637 b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3060 } 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	3061 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	3062 continue;
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3063 memnode_worklist.append_if_missing(use);
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3064 } else if (use->is_MemBar()) {
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	3065 if (use->in(TypeFunc::Memory) == n) { // Ignore precedent edge
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	3066 memnode_worklist.append_if_missing(use);
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	3067 }
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3068 #ifdef ASSERT
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3069 } else if(use->is_Mem()) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3070 assert(use->in(MemNode::Memory) != n, "EA: missing memory path");
0 a61af66fc99e Initial load duke parents: diff changeset	3071 } else if (use->is_MergeMem()) {
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3072 assert(_mergemem_worklist.contains(use->as_MergeMem()), "EA: missing MergeMem node in the worklist");
7637 b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3073 } else if (use->Opcode() == Op_EncodeISOArray) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3074 if (use->in(MemNode::Memory) == n \|\| use->in(3) == n) {
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3075 // EncodeISOArray overwrites destination array
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3076 memnode_worklist.append_if_missing(use);
b30b3c2a0cf2 6896617: Optimize sun.nio.cs.ISO_8859_1$Encode.encodeArrayLoop() on x86 kvn parents: 7196 diff changeset	3077 }
1100 f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3078 } else {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3079 uint op = use->Opcode();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3080 if (!(op == Op_StoreCM \|\|
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3081 (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	3082 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	3083 op == Op_AryEq \|\| op == Op_StrComp \|\|
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3084 op == Op_StrEquals \|\| op == Op_StrIndexOf)) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3085 n->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3086 use->dump();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3087 assert(false, "EA: missing memory path");
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3088 }
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3089 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	3090 }
a61af66fc99e Initial load duke parents: diff changeset	3091 }
a61af66fc99e Initial load duke parents: diff changeset	3092 }
a61af66fc99e Initial load duke parents: diff changeset	3093
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3094 // 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	3095 // 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	3096 // 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	3097 uint length = _mergemem_worklist.length();
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3098 for( uint next = 0; next < length; ++next ) {
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3099 MergeMemNode* nmm = _mergemem_worklist.at(next);
f96a1a986f7b 6895383: JCK test throws NPE for method compiled with Escape Analysis kvn parents: 1072 diff changeset	3100 assert(!visited.test_set(nmm->_idx), "should not be visited before");
0 a61af66fc99e Initial load duke parents: diff changeset	3101 // 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	3102 // 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	3103 // 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	3104 // 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	3105 igvn->hash_delete(nmm);
0 a61af66fc99e Initial load duke parents: diff changeset	3106 uint nslices = nmm->req();
a61af66fc99e Initial load duke parents: diff changeset	3107 for (uint i = Compile::AliasIdxRaw+1; i < nslices; i++) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3108 Node* mem = nmm->in(i);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3109 Node* cur = NULL;
0 a61af66fc99e Initial load duke parents: diff changeset	3110 if (mem == NULL \|\| mem->is_top())
a61af66fc99e Initial load duke parents: diff changeset	3111 continue;
1101 7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3112 // 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	3113 // if their type became more precise since this mergemem was created.
0 a61af66fc99e Initial load duke parents: diff changeset	3114 while (mem->is_Mem()) {
a61af66fc99e Initial load duke parents: diff changeset	3115 const Type *at = igvn->type(mem->in(MemNode::Address));
a61af66fc99e Initial load duke parents: diff changeset	3116 if (at != Type::TOP) {
a61af66fc99e Initial load duke parents: diff changeset	3117 assert (at->isa_ptr() != NULL, "pointer type required.");
a61af66fc99e Initial load duke parents: diff changeset	3118 uint idx = (uint)_compile->get_alias_index(at->is_ptr());
a61af66fc99e Initial load duke parents: diff changeset	3119 if (idx == i) {
a61af66fc99e Initial load duke parents: diff changeset	3120 if (cur == NULL)
a61af66fc99e Initial load duke parents: diff changeset	3121 cur = mem;
a61af66fc99e Initial load duke parents: diff changeset	3122 } else {
a61af66fc99e Initial load duke parents: diff changeset	3123 if (idx >= nmm->req() \|\| nmm->is_empty_memory(nmm->in(idx))) {
a61af66fc99e Initial load duke parents: diff changeset	3124 nmm->set_memory_at(idx, mem);
a61af66fc99e Initial load duke parents: diff changeset	3125 }
a61af66fc99e Initial load duke parents: diff changeset	3126 }
a61af66fc99e Initial load duke parents: diff changeset	3127 }
a61af66fc99e Initial load duke parents: diff changeset	3128 mem = mem->in(MemNode::Memory);
a61af66fc99e Initial load duke parents: diff changeset	3129 }
a61af66fc99e Initial load duke parents: diff changeset	3130 nmm->set_memory_at(i, (cur != NULL) ? cur : mem);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3131 // 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	3132 // 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	3133 for (uint ni = new_index_start; ni < new_index_end; ni++) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3134 if((uint)_compile->get_general_index(ni) == i) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3135 Node *m = (ni >= nmm->req()) ? nmm->empty_memory() : nmm->in(ni);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3136 if (nmm->is_empty_memory(m)) {
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3137 Node* result = find_inst_mem(mem, ni, orig_phis);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3138 if (_compile->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3139 return;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3140 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3141 nmm->set_memory_at(ni, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3142 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3143 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3144 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3145 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3146 // Find the rest of instances values
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3147 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	3148 const TypeOopPtr *tinst = _compile->get_adr_type(ni)->isa_oopptr();
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3149 Node* result = step_through_mergemem(nmm, ni, tinst);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3150 if (result == nmm->base_memory()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3151 // 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	3152 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	3153 result = find_inst_mem(result, ni, orig_phis);
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3154 if (_compile->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3155 return;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3156 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3157 nmm->set_memory_at(ni, result);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3158 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3159 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3160 igvn->hash_insert(nmm);
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3161 record_for_optimizer(nmm);
0 a61af66fc99e Initial load duke parents: diff changeset	3162 }
a61af66fc99e Initial load duke parents: diff changeset	3163
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3164 // Phase 4: Update the inputs of non-instance memory Phis and
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3165 // the Memory input of memnodes
0 a61af66fc99e Initial load duke parents: diff changeset	3166 // First update the inputs of any non-instance Phi's from
a61af66fc99e Initial load duke parents: diff changeset	3167 // which we split out an instance Phi. Note we don't have
a61af66fc99e Initial load duke parents: diff changeset	3168 // to recursively process Phi's encounted on the input memory
a61af66fc99e Initial load duke parents: diff changeset	3169 // chains as is done in split_memory_phi() since they will
a61af66fc99e Initial load duke parents: diff changeset	3170 // also be processed here.
247 02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric kvn parents: 245 diff changeset	3171 for (int j = 0; j < orig_phis.length(); j++) {
02a35ad4adf8 6723160: Nightly failure: Error: meet not symmetric kvn parents: 245 diff changeset	3172 PhiNode *phi = orig_phis.at(j);
0 a61af66fc99e Initial load duke parents: diff changeset	3173 int alias_idx = _compile->get_alias_index(phi->adr_type());
a61af66fc99e Initial load duke parents: diff changeset	3174 igvn->hash_delete(phi);
a61af66fc99e Initial load duke parents: diff changeset	3175 for (uint i = 1; i < phi->req(); i++) {
a61af66fc99e Initial load duke parents: diff changeset	3176 Node *mem = phi->in(i);
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3177 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	3178 if (_compile->failing()) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3179 return;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3180 }
0 a61af66fc99e Initial load duke parents: diff changeset	3181 if (mem != new_mem) {
a61af66fc99e Initial load duke parents: diff changeset	3182 phi->set_req(i, new_mem);
a61af66fc99e Initial load duke parents: diff changeset	3183 }
a61af66fc99e Initial load duke parents: diff changeset	3184 }
a61af66fc99e Initial load duke parents: diff changeset	3185 igvn->hash_insert(phi);
a61af66fc99e Initial load duke parents: diff changeset	3186 record_for_optimizer(phi);
a61af66fc99e Initial load duke parents: diff changeset	3187 }
a61af66fc99e Initial load duke parents: diff changeset	3188
a61af66fc99e Initial load duke parents: diff changeset	3189 // 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	3190 // 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	3191 // 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	3192 // 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	3193 #if 0 // ifdef ASSERT
2249 3763ca6579b7 7013538: Java memory leak with escape analysis kvn parents: 2086 diff changeset	3194 visited.Reset();
1101 7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3195 Node_Stack old_mems(arena, _compile->unique() >> 2);
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3196 #endif
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3197 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	3198 Node* n = ideal_nodes.at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3199 Node* nmem = get_map(n->_idx);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3200 assert(nmem != NULL, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3201 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	3202 #if 0 // ifdef ASSERT
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3203 Node* old_mem = n->in(MemNode::Memory);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3204 if (!visited.test_set(old_mem->_idx)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3205 old_mems.push(old_mem, old_mem->outcnt());
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3206 }
1101 7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3207 #endif
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3208 assert(n->in(MemNode::Memory) != nmem, "sanity");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3209 if (!n->is_Load()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3210 // Move memory users of a store first.
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3211 move_inst_mem(n, orig_phis);
0 a61af66fc99e Initial load duke parents: diff changeset	3212 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3213 // Now update memory input
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3214 igvn->hash_delete(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3215 n->set_req(MemNode::Memory, nmem);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3216 igvn->hash_insert(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3217 record_for_optimizer(n);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3218 } else {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3219 assert(n->is_Allocate() \|\| n->is_CheckCastPP() \|\|
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3220 n->is_AddP() \|\| n->is_Phi(), "unknown node used for set_map()");
0 a61af66fc99e Initial load duke parents: diff changeset	3221 }
a61af66fc99e Initial load duke parents: diff changeset	3222 }
3278 66b0e2371912 7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post kvn parents: 2459 diff changeset	3223 #if 0 // ifdef ASSERT
1101 7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3224 // Verify that memory was split correctly
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3225 while (old_mems.is_nonempty()) {
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3226 Node* old_mem = old_mems.node();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3227 uint old_cnt = old_mems.index();
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3228 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	3229 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	3230 }
7fee0a6cc6d4 6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys kvn parents: 1100 diff changeset	3231 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	3232 }
a61af66fc99e Initial load duke parents: diff changeset	3233
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3234 #ifndef PRODUCT
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3235 static const char *node_type_names[] = {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3236 "UnknownType",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3237 "JavaObject",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3238 "LocalVar",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3239 "Field",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3240 "Arraycopy"
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3241 };
4937 73df3733f2eb 7129284: +DoEscapeAnalysis regression w/ early build of 7u4 (HotSpot 23) on Linux kvn parents: 4777 diff changeset	3242
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3243 static const char *esc_names[] = {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3244 "UnknownEscape",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3245 "NoEscape",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3246 "ArgEscape",
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3247 "GlobalEscape"
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3248 };
0 a61af66fc99e Initial load duke parents: diff changeset	3249
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3250 void PointsToNode::dump(bool print_state) const {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3251 NodeType nt = node_type();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3252 tty->print("%s ", node_type_names[(int) nt]);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3253 if (print_state) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3254 EscapeState es = escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3255 EscapeState fields_es = fields_escape_state();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3256 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	3257 if (nt == PointsToNode::JavaObject && !this->scalar_replaceable())
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	3258 tty->print("NSR ");
4113 8c57262447d3 7105605: Use EA info to optimize pointers compare kvn parents: 4058 diff changeset	3259 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3260 if (is_Field()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3261 FieldNode* f = (FieldNode*)this;
6944 f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	3262 if (f->is_oop())
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	3263 tty->print("oop ");
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	3264 if (f->offset() > 0)
f3da5ff1514c 8002069: Assert failed in C2: assert(field->edge_count() > 0) failed: sanity kvn parents: 6895 diff changeset	3265 tty->print("+%d ", f->offset());
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3266 tty->print("(");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3267 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	3268 PointsToNode* b = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3269 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	3270 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3271 tty->print(" )");
0 a61af66fc99e Initial load duke parents: diff changeset	3272 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3273 tty->print("[");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3274 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	3275 PointsToNode* e = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3276 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	3277 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3278 tty->print(" [");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3279 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	3280 PointsToNode* u = i.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3281 bool is_base = false;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3282 if (PointsToNode::is_base_use(u)) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3283 is_base = true;
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3284 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	3285 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3286 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	3287 }
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3288 tty->print(" ]] ");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3289 if (_node == NULL)
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3290 tty->print_cr("<null>");
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3291 else
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3292 _node->dump();
4113 8c57262447d3 7105605: Use EA info to optimize pointers compare kvn parents: 4058 diff changeset	3293 }
8c57262447d3 7105605: Use EA info to optimize pointers compare kvn parents: 4058 diff changeset	3294
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3295 void ConnectionGraph::dump(GrowableArray<PointsToNode*>& ptnodes_worklist) {
0 a61af66fc99e Initial load duke parents: diff changeset	3296 bool first = true;
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3297 int ptnodes_length = ptnodes_worklist.length();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3298 for (int i = 0; i < ptnodes_length; i++) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3299 PointsToNode *ptn = ptnodes_worklist.at(i);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3300 if (ptn == NULL \|\| !ptn->is_JavaObject())
0 a61af66fc99e Initial load duke parents: diff changeset	3301 continue;
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3302 PointsToNode::EscapeState es = ptn->escape_state();
10278 6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	3303 if ((es != PointsToNode::NoEscape) && !Verbose) {
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	3304 continue;
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	3305 }
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	3306 Node* n = ptn->ideal_node();
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	3307 if (n->is_Allocate() \|\| (n->is_CallStaticJava() &&
6f3fd5150b67 6934604: enable parts of EliminateAutoBox by default kvn parents: 7637 diff changeset	3308 n->as_CallStaticJava()->is_boxing_method())) {
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3309 if (first) {
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3310 tty->cr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3311 tty->print("======== Connection graph for ");
244 524eca34ea76 6684714: Optimize EA Connection Graph build performance kvn parents: 223 diff changeset	3312 _compile->method()->print_short_name();
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3313 tty->cr();
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3314 first = false;
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3315 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3316 ptn->dump();
5948 ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3317 // 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	3318 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	3319 PointsToNode* use = j.get();
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3320 if (use->is_LocalVar()) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3321 use->dump(Verbose);
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3322 } else if (Verbose) {
ee138854b3a6 7147744: CTW: assert(false) failed: infinite EA connection graph build kvn parents: 5901 diff changeset	3323 use->dump();
65 99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3324 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3325 }
99269dbf4ba8 6674588: (Escape Analysis) Improve Escape Analysis code kvn parents: 39 diff changeset	3326 tty->cr();
0 a61af66fc99e Initial load duke parents: diff changeset	3327 }
a61af66fc99e Initial load duke parents: diff changeset	3328 }
a61af66fc99e Initial load duke parents: diff changeset	3329 }
a61af66fc99e Initial load duke parents: diff changeset	3330 #endif

Mercurial > hg > truffle

annotate src/share/vm/opto/escape.cpp @ 10278:6f3fd5150b67