author | kvn |
Mon, 14 Nov 2011 18:38:03 -0800 | |
changeset 11189 | c1ad8528ae68 |
parent 10982 | 85bcf8ef9cc8 |
child 11191 | d54ab5dcba83 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
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* Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#include "precompiled.hpp" |
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#include "ci/bcEscapeAnalyzer.hpp" |
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#include "libadt/vectset.hpp" |
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#include "memory/allocation.hpp" |
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#include "opto/c2compiler.hpp" |
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#include "opto/callnode.hpp" |
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#include "opto/cfgnode.hpp" |
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#include "opto/compile.hpp" |
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#include "opto/escape.hpp" |
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#include "opto/phaseX.hpp" |
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#include "opto/rootnode.hpp" |
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void PointsToNode::add_edge(uint targIdx, PointsToNode::EdgeType et) { |
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uint v = (targIdx << EdgeShift) + ((uint) et); |
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if (_edges == NULL) { |
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Arena *a = Compile::current()->comp_arena(); |
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_edges = new(a) GrowableArray<uint>(a, INITIAL_EDGE_COUNT, 0, 0); |
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} |
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_edges->append_if_missing(v); |
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} |
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void PointsToNode::remove_edge(uint targIdx, PointsToNode::EdgeType et) { |
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uint v = (targIdx << EdgeShift) + ((uint) et); |
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_edges->remove(v); |
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} |
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#ifndef PRODUCT |
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static const char *node_type_names[] = { |
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"UnknownType", |
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"JavaObject", |
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"LocalVar", |
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"Field" |
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}; |
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static const char *esc_names[] = { |
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"UnknownEscape", |
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"NoEscape", |
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"ArgEscape", |
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"GlobalEscape" |
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}; |
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static const char *edge_type_suffix[] = { |
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"?", // UnknownEdge |
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"P", // PointsToEdge |
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"D", // DeferredEdge |
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"F" // FieldEdge |
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}; |
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void PointsToNode::dump(bool print_state) const { |
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NodeType nt = node_type(); |
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tty->print("%s ", node_type_names[(int) nt]); |
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if (print_state) { |
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EscapeState es = escape_state(); |
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tty->print("%s %s ", esc_names[(int) es], _scalar_replaceable ? "":"NSR"); |
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} |
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tty->print("[["); |
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for (uint i = 0; i < edge_count(); i++) { |
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tty->print(" %d%s", edge_target(i), edge_type_suffix[(int) edge_type(i)]); |
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} |
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tty->print("]] "); |
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if (_node == NULL) |
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tty->print_cr("<null>"); |
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else |
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_node->dump(); |
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} |
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#endif |
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ConnectionGraph::ConnectionGraph(Compile * C, PhaseIterGVN *igvn) : |
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_nodes(C->comp_arena(), C->unique(), C->unique(), PointsToNode()), |
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_processed(C->comp_arena()), |
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pt_ptset(C->comp_arena()), |
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pt_visited(C->comp_arena()), |
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pt_worklist(C->comp_arena(), 4, 0, 0), |
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_collecting(true), |
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_progress(false), |
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_compile(C), |
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_igvn(igvn), |
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_node_map(C->comp_arena()) { |
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_phantom_object = C->top()->_idx, |
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add_node(C->top(), PointsToNode::JavaObject, PointsToNode::GlobalEscape,true); |
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// Add ConP(#NULL) and ConN(#NULL) nodes. |
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Node* oop_null = igvn->zerocon(T_OBJECT); |
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_oop_null = oop_null->_idx; |
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assert(_oop_null < nodes_size(), "should be created already"); |
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add_node(oop_null, PointsToNode::JavaObject, PointsToNode::NoEscape, true); |
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if (UseCompressedOops) { |
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Node* noop_null = igvn->zerocon(T_NARROWOOP); |
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_noop_null = noop_null->_idx; |
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assert(_noop_null < nodes_size(), "should be created already"); |
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add_node(noop_null, PointsToNode::JavaObject, PointsToNode::NoEscape, true); |
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} else { |
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_noop_null = _oop_null; // Should be initialized |
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} |
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_pcmp_neq = NULL; // Should be initialized |
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_pcmp_eq = NULL; |
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} |
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void ConnectionGraph::add_pointsto_edge(uint from_i, uint to_i) { |
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PointsToNode *f = ptnode_adr(from_i); |
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PointsToNode *t = ptnode_adr(to_i); |
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assert(f->node_type() != PointsToNode::UnknownType && t->node_type() != PointsToNode::UnknownType, "node types must be set"); |
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assert(f->node_type() == PointsToNode::LocalVar || f->node_type() == PointsToNode::Field, "invalid source of PointsTo edge"); |
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assert(t->node_type() == PointsToNode::JavaObject, "invalid destination of PointsTo edge"); |
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add_edge(f, to_i, PointsToNode::PointsToEdge); |
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} |
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void ConnectionGraph::add_deferred_edge(uint from_i, uint to_i) { |
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PointsToNode *f = ptnode_adr(from_i); |
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PointsToNode *t = ptnode_adr(to_i); |
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assert(f->node_type() != PointsToNode::UnknownType && t->node_type() != PointsToNode::UnknownType, "node types must be set"); |
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assert(f->node_type() == PointsToNode::LocalVar || f->node_type() == PointsToNode::Field, "invalid source of Deferred edge"); |
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assert(t->node_type() == PointsToNode::LocalVar || t->node_type() == PointsToNode::Field, "invalid destination of Deferred edge"); |
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// don't add a self-referential edge, this can occur during removal of |
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// deferred edges |
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if (from_i != to_i) |
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add_edge(f, to_i, PointsToNode::DeferredEdge); |
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} |
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int ConnectionGraph::address_offset(Node* adr, PhaseTransform *phase) { |
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const Type *adr_type = phase->type(adr); |
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if (adr->is_AddP() && adr_type->isa_oopptr() == NULL && |
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adr->in(AddPNode::Address)->is_Proj() && |
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adr->in(AddPNode::Address)->in(0)->is_Allocate()) { |
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// We are computing a raw address for a store captured by an Initialize |
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// compute an appropriate address type. AddP cases #3 and #5 (see below). |
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int offs = (int)phase->find_intptr_t_con(adr->in(AddPNode::Offset), Type::OffsetBot); |
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assert(offs != Type::OffsetBot || |
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adr->in(AddPNode::Address)->in(0)->is_AllocateArray(), |
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"offset must be a constant or it is initialization of array"); |
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return offs; |
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} |
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const TypePtr *t_ptr = adr_type->isa_ptr(); |
1 | 163 |
assert(t_ptr != NULL, "must be a pointer type"); |
164 |
return t_ptr->offset(); |
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165 |
} |
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166 |
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167 |
void ConnectionGraph::add_field_edge(uint from_i, uint to_i, int offset) { |
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168 |
PointsToNode *f = ptnode_adr(from_i); |
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169 |
PointsToNode *t = ptnode_adr(to_i); |
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170 |
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171 |
assert(f->node_type() != PointsToNode::UnknownType && t->node_type() != PointsToNode::UnknownType, "node types must be set"); |
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172 |
assert(f->node_type() == PointsToNode::JavaObject, "invalid destination of Field edge"); |
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assert(t->node_type() == PointsToNode::Field, "invalid destination of Field edge"); |
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assert (t->offset() == -1 || t->offset() == offset, "conflicting field offsets"); |
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175 |
t->set_offset(offset); |
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add_edge(f, to_i, PointsToNode::FieldEdge); |
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} |
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void ConnectionGraph::set_escape_state(uint ni, PointsToNode::EscapeState es) { |
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// Don't change non-escaping state of NULL pointer. |
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if (ni == _noop_null || ni == _oop_null) |
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return; |
1 | 184 |
PointsToNode *npt = ptnode_adr(ni); |
185 |
PointsToNode::EscapeState old_es = npt->escape_state(); |
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186 |
if (es > old_es) |
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187 |
npt->set_escape_state(es); |
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188 |
} |
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void ConnectionGraph::add_node(Node *n, PointsToNode::NodeType nt, |
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PointsToNode::EscapeState es, bool done) { |
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PointsToNode* ptadr = ptnode_adr(n->_idx); |
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ptadr->_node = n; |
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ptadr->set_node_type(nt); |
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// inline set_escape_state(idx, es); |
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PointsToNode::EscapeState old_es = ptadr->escape_state(); |
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if (es > old_es) |
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ptadr->set_escape_state(es); |
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if (done) |
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_processed.set(n->_idx); |
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} |
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204 |
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PointsToNode::EscapeState ConnectionGraph::escape_state(Node *n) { |
1 | 206 |
uint idx = n->_idx; |
207 |
PointsToNode::EscapeState es; |
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// If we are still collecting or there were no non-escaping allocations |
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// we don't know the answer yet |
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if (_collecting) |
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return PointsToNode::UnknownEscape; |
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// if the node was created after the escape computation, return |
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// UnknownEscape |
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if (idx >= nodes_size()) |
1 | 217 |
return PointsToNode::UnknownEscape; |
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es = ptnode_adr(idx)->escape_state(); |
1 | 220 |
|
221 |
// if we have already computed a value, return it |
|
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if (es != PointsToNode::UnknownEscape && |
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223 |
ptnode_adr(idx)->node_type() == PointsToNode::JavaObject) |
1 | 224 |
return es; |
225 |
||
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226 |
// PointsTo() calls n->uncast() which can return a new ideal node. |
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227 |
if (n->uncast()->_idx >= nodes_size()) |
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228 |
return PointsToNode::UnknownEscape; |
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229 |
|
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|
230 |
PointsToNode::EscapeState orig_es = es; |
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231 |
|
1 | 232 |
// compute max escape state of anything this node could point to |
8319 | 233 |
for(VectorSetI i(PointsTo(n)); i.test() && es != PointsToNode::GlobalEscape; ++i) { |
1 | 234 |
uint pt = i.elem; |
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235 |
PointsToNode::EscapeState pes = ptnode_adr(pt)->escape_state(); |
1 | 236 |
if (pes > es) |
237 |
es = pes; |
|
238 |
} |
|
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|
239 |
if (orig_es != es) { |
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240 |
// cache the computed escape state |
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241 |
assert(es > orig_es, "should have computed an escape state"); |
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242 |
set_escape_state(idx, es); |
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|
243 |
} // orig_es could be PointsToNode::UnknownEscape |
1 | 244 |
return es; |
245 |
} |
|
246 |
||
8319 | 247 |
VectorSet* ConnectionGraph::PointsTo(Node * n) { |
248 |
pt_ptset.Reset(); |
|
249 |
pt_visited.Reset(); |
|
250 |
pt_worklist.clear(); |
|
1 | 251 |
|
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252 |
#ifdef ASSERT |
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|
253 |
Node *orig_n = n; |
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|
254 |
#endif |
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|
255 |
|
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|
256 |
n = n->uncast(); |
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|
257 |
PointsToNode* npt = ptnode_adr(n->_idx); |
1 | 258 |
|
259 |
// If we have a JavaObject, return just that object |
|
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260 |
if (npt->node_type() == PointsToNode::JavaObject) { |
8319 | 261 |
pt_ptset.set(n->_idx); |
262 |
return &pt_ptset; |
|
1 | 263 |
} |
371
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|
264 |
#ifdef ASSERT |
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|
265 |
if (npt->_node == NULL) { |
371
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|
266 |
if (orig_n != n) |
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|
267 |
orig_n->dump(); |
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|
268 |
n->dump(); |
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|
269 |
assert(npt->_node != NULL, "unregistered node"); |
371
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|
270 |
} |
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|
271 |
#endif |
8319 | 272 |
pt_worklist.push(n->_idx); |
273 |
while(pt_worklist.length() > 0) { |
|
274 |
int ni = pt_worklist.pop(); |
|
275 |
if (pt_visited.test_set(ni)) |
|
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|
276 |
continue; |
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|
277 |
|
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|
278 |
PointsToNode* pn = ptnode_adr(ni); |
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|
279 |
// ensure that all inputs of a Phi have been processed |
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|
280 |
assert(!_collecting || !pn->_node->is_Phi() || _processed.test(ni),""); |
1 | 281 |
|
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|
282 |
int edges_processed = 0; |
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|
283 |
uint e_cnt = pn->edge_count(); |
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|
284 |
for (uint e = 0; e < e_cnt; e++) { |
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|
285 |
uint etgt = pn->edge_target(e); |
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|
286 |
PointsToNode::EdgeType et = pn->edge_type(e); |
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|
287 |
if (et == PointsToNode::PointsToEdge) { |
8319 | 288 |
pt_ptset.set(etgt); |
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|
289 |
edges_processed++; |
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|
290 |
} else if (et == PointsToNode::DeferredEdge) { |
8319 | 291 |
pt_worklist.push(etgt); |
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|
292 |
edges_processed++; |
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|
293 |
} else { |
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|
294 |
assert(false,"neither PointsToEdge or DeferredEdge"); |
1 | 295 |
} |
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|
296 |
} |
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|
297 |
if (edges_processed == 0) { |
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|
298 |
// no deferred or pointsto edges found. Assume the value was set |
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|
299 |
// outside this method. Add the phantom object to the pointsto set. |
8319 | 300 |
pt_ptset.set(_phantom_object); |
1 | 301 |
} |
302 |
} |
|
8319 | 303 |
return &pt_ptset; |
1 | 304 |
} |
305 |
||
348
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|
306 |
void ConnectionGraph::remove_deferred(uint ni, GrowableArray<uint>* deferred_edges, VectorSet* visited) { |
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|
307 |
// This method is most expensive during ConnectionGraph construction. |
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|
308 |
// Reuse vectorSet and an additional growable array for deferred edges. |
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|
309 |
deferred_edges->clear(); |
8319 | 310 |
visited->Reset(); |
1 | 311 |
|
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|
312 |
visited->set(ni); |
1 | 313 |
PointsToNode *ptn = ptnode_adr(ni); |
11189 | 314 |
if (ptn->edge_count() == 0) { |
315 |
// No deferred or pointsto edges found. Assume the value was set |
|
316 |
// outside this method. Add edge to phantom object. |
|
317 |
add_pointsto_edge(ni, _phantom_object); |
|
318 |
} |
|
1 | 319 |
|
348
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|
320 |
// Mark current edges as visited and move deferred edges to separate array. |
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|
321 |
for (uint i = 0; i < ptn->edge_count(); ) { |
238
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|
322 |
uint t = ptn->edge_target(i); |
348
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|
323 |
#ifdef ASSERT |
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|
324 |
assert(!visited->test_set(t), "expecting no duplications"); |
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|
325 |
#else |
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|
326 |
visited->set(t); |
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|
327 |
#endif |
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changeset
|
328 |
if (ptn->edge_type(i) == PointsToNode::DeferredEdge) { |
1 | 329 |
ptn->remove_edge(t, PointsToNode::DeferredEdge); |
348
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|
330 |
deferred_edges->append(t); |
371
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|
331 |
} else { |
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|
332 |
i++; |
348
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changeset
|
333 |
} |
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changeset
|
334 |
} |
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changeset
|
335 |
for (int next = 0; next < deferred_edges->length(); ++next) { |
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changeset
|
336 |
uint t = deferred_edges->at(next); |
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|
337 |
PointsToNode *ptt = ptnode_adr(t); |
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|
338 |
uint e_cnt = ptt->edge_count(); |
11189 | 339 |
if (e_cnt == 0) { |
340 |
// No deferred or pointsto edges found. Assume the value was set |
|
341 |
// outside this method. Add edge to phantom object. |
|
342 |
add_pointsto_edge(t, _phantom_object); |
|
343 |
add_pointsto_edge(ni, _phantom_object); |
|
344 |
} |
|
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|
345 |
for (uint e = 0; e < e_cnt; e++) { |
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|
346 |
uint etgt = ptt->edge_target(e); |
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|
347 |
if (visited->test_set(etgt)) |
348
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|
348 |
continue; |
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|
349 |
|
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|
350 |
PointsToNode::EdgeType et = ptt->edge_type(e); |
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|
351 |
if (et == PointsToNode::PointsToEdge) { |
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|
352 |
add_pointsto_edge(ni, etgt); |
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|
353 |
if(etgt == _phantom_object) { |
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|
354 |
// Special case - field set outside (globally escaping). |
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|
355 |
set_escape_state(ni, PointsToNode::GlobalEscape); |
952
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|
356 |
} |
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|
357 |
} else if (et == PointsToNode::DeferredEdge) { |
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|
358 |
deferred_edges->append(etgt); |
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|
359 |
} else { |
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|
360 |
assert(false,"invalid connection graph"); |
1 | 361 |
} |
362 |
} |
|
363 |
} |
|
364 |
} |
|
365 |
||
366 |
||
367 |
// Add an edge to node given by "to_i" from any field of adr_i whose offset |
|
368 |
// matches "offset" A deferred edge is added if to_i is a LocalVar, and |
|
369 |
// a pointsto edge is added if it is a JavaObject |
|
370 |
||
371 |
void ConnectionGraph::add_edge_from_fields(uint adr_i, uint to_i, int offs) { |
|
952
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|
372 |
PointsToNode* an = ptnode_adr(adr_i); |
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|
373 |
PointsToNode* to = ptnode_adr(to_i); |
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|
374 |
bool deferred = (to->node_type() == PointsToNode::LocalVar); |
1 | 375 |
|
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|
376 |
for (uint fe = 0; fe < an->edge_count(); fe++) { |
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|
377 |
assert(an->edge_type(fe) == PointsToNode::FieldEdge, "expecting a field edge"); |
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|
378 |
int fi = an->edge_target(fe); |
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|
379 |
PointsToNode* pf = ptnode_adr(fi); |
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|
380 |
int po = pf->offset(); |
1 | 381 |
if (po == offs || po == Type::OffsetBot || offs == Type::OffsetBot) { |
382 |
if (deferred) |
|
383 |
add_deferred_edge(fi, to_i); |
|
384 |
else |
|
385 |
add_pointsto_edge(fi, to_i); |
|
386 |
} |
|
387 |
} |
|
388 |
} |
|
389 |
||
238
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|
390 |
// Add a deferred edge from node given by "from_i" to any field of adr_i |
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|
391 |
// whose offset matches "offset". |
1 | 392 |
void ConnectionGraph::add_deferred_edge_to_fields(uint from_i, uint adr_i, int offs) { |
952
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|
393 |
PointsToNode* an = ptnode_adr(adr_i); |
10982
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|
394 |
bool is_alloc = an->_node->is_Allocate(); |
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|
395 |
for (uint fe = 0; fe < an->edge_count(); fe++) { |
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|
396 |
assert(an->edge_type(fe) == PointsToNode::FieldEdge, "expecting a field edge"); |
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|
397 |
int fi = an->edge_target(fe); |
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|
398 |
PointsToNode* pf = ptnode_adr(fi); |
10982
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|
399 |
int offset = pf->offset(); |
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|
400 |
if (!is_alloc) { |
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|
401 |
// Assume the field was set outside this method if it is not Allocation |
1 | 402 |
add_pointsto_edge(fi, _phantom_object); |
403 |
} |
|
10982
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|
404 |
if (offset == offs || offset == Type::OffsetBot || offs == Type::OffsetBot) { |
1 | 405 |
add_deferred_edge(from_i, fi); |
406 |
} |
|
407 |
} |
|
11189 | 408 |
// Some fields references (AddP) may still be missing |
409 |
// until Connection Graph construction is complete. |
|
410 |
// For example, loads from RAW pointers with offset 0 |
|
411 |
// which don't have AddP. |
|
412 |
// A reference to phantom_object will be added if |
|
413 |
// a field reference is still missing after completing |
|
414 |
// Connection Graph (see remove_deferred()). |
|
1 | 415 |
} |
416 |
||
238
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|
417 |
// Helper functions |
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|
418 |
|
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|
419 |
static Node* get_addp_base(Node *addp) { |
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|
420 |
assert(addp->is_AddP(), "must be AddP"); |
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|
421 |
// |
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|
422 |
// AddP cases for Base and Address inputs: |
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|
423 |
// case #1. Direct object's field reference: |
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|
424 |
// Allocate |
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|
425 |
// | |
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|
426 |
// Proj #5 ( oop result ) |
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|
427 |
// | |
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|
428 |
// CheckCastPP (cast to instance type) |
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|
429 |
// | | |
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|
430 |
// AddP ( base == address ) |
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|
431 |
// |
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|
432 |
// case #2. Indirect object's field reference: |
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|
433 |
// Phi |
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|
434 |
// | |
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|
435 |
// CastPP (cast to instance type) |
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|
436 |
// | | |
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|
437 |
// AddP ( base == address ) |
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|
438 |
// |
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|
439 |
// case #3. Raw object's field reference for Initialize node: |
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|
440 |
// Allocate |
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|
441 |
// | |
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|
442 |
// Proj #5 ( oop result ) |
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|
443 |
// top | |
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|
444 |
// \ | |
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|
445 |
// AddP ( base == top ) |
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|
446 |
// |
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|
447 |
// case #4. Array's element reference: |
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|
448 |
// {CheckCastPP | CastPP} |
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|
449 |
// | | | |
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|
450 |
// | AddP ( array's element offset ) |
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|
451 |
// | | |
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|
452 |
// AddP ( array's offset ) |
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|
453 |
// |
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|
454 |
// case #5. Raw object's field reference for arraycopy stub call: |
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|
455 |
// The inline_native_clone() case when the arraycopy stub is called |
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|
456 |
// after the allocation before Initialize and CheckCastPP nodes. |
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|
457 |
// Allocate |
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|
458 |
// | |
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|
459 |
// Proj #5 ( oop result ) |
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|
460 |
// | | |
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|
461 |
// AddP ( base == address ) |
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|
462 |
// |
250 | 463 |
// case #6. Constant Pool, ThreadLocal, CastX2P or |
464 |
// Raw object's field reference: |
|
465 |
// {ConP, ThreadLocal, CastX2P, raw Load} |
|
238
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|
466 |
// top | |
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|
467 |
// \ | |
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|
468 |
// AddP ( base == top ) |
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|
469 |
// |
250 | 470 |
// case #7. Klass's field reference. |
471 |
// LoadKlass |
|
472 |
// | | |
|
473 |
// AddP ( base == address ) |
|
474 |
// |
|
590
2954744d7bba
6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
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diff
changeset
|
475 |
// case #8. narrow Klass's field reference. |
2954744d7bba
6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
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diff
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|
476 |
// LoadNKlass |
2954744d7bba
6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
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diff
changeset
|
477 |
// | |
2954744d7bba
6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
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parents:
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diff
changeset
|
478 |
// DecodeN |
2954744d7bba
6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
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parents:
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diff
changeset
|
479 |
// | | |
2954744d7bba
6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
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parents:
589
diff
changeset
|
480 |
// AddP ( base == address ) |
2954744d7bba
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diff
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|
481 |
// |
238
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|
482 |
Node *base = addp->in(AddPNode::Base)->uncast(); |
803c80713999
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|
483 |
if (base->is_top()) { // The AddP case #3 and #6. |
803c80713999
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diff
changeset
|
484 |
base = addp->in(AddPNode::Address)->uncast(); |
3804 | 485 |
while (base->is_AddP()) { |
486 |
// Case #6 (unsafe access) may have several chained AddP nodes. |
|
487 |
assert(base->in(AddPNode::Base)->is_top(), "expected unsafe access address only"); |
|
488 |
base = base->in(AddPNode::Address)->uncast(); |
|
489 |
} |
|
238
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|
490 |
assert(base->Opcode() == Op_ConP || base->Opcode() == Op_ThreadLocal || |
594
9f4474e5dbaf
6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents:
590
diff
changeset
|
491 |
base->Opcode() == Op_CastX2P || base->is_DecodeN() || |
250 | 492 |
(base->is_Mem() && base->bottom_type() == TypeRawPtr::NOTNULL) || |
493 |
(base->is_Proj() && base->in(0)->is_Allocate()), "sanity"); |
|
1 | 494 |
} |
238
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diff
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|
495 |
return base; |
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parents:
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diff
changeset
|
496 |
} |
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parents:
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diff
changeset
|
497 |
|
803c80713999
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|
498 |
static Node* find_second_addp(Node* addp, Node* n) { |
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parents:
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diff
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|
499 |
assert(addp->is_AddP() && addp->outcnt() > 0, "Don't process dead nodes"); |
803c80713999
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parents:
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diff
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|
500 |
|
803c80713999
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|
501 |
Node* addp2 = addp->raw_out(0); |
803c80713999
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diff
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|
502 |
if (addp->outcnt() == 1 && addp2->is_AddP() && |
803c80713999
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diff
changeset
|
503 |
addp2->in(AddPNode::Base) == n && |
803c80713999
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diff
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|
504 |
addp2->in(AddPNode::Address) == addp) { |
803c80713999
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parents:
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diff
changeset
|
505 |
|
803c80713999
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parents:
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diff
changeset
|
506 |
assert(addp->in(AddPNode::Base) == n, "expecting the same base"); |
803c80713999
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parents:
212
diff
changeset
|
507 |
// |
803c80713999
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parents:
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diff
changeset
|
508 |
// Find array's offset to push it on worklist first and |
803c80713999
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parents:
212
diff
changeset
|
509 |
// as result process an array's element offset first (pushed second) |
803c80713999
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kvn
parents:
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diff
changeset
|
510 |
// to avoid CastPP for the array's offset. |
803c80713999
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parents:
212
diff
changeset
|
511 |
// Otherwise the inserted CastPP (LocalVar) will point to what |
803c80713999
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parents:
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diff
changeset
|
512 |
// the AddP (Field) points to. Which would be wrong since |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
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parents:
212
diff
changeset
|
513 |
// the algorithm expects the CastPP has the same point as |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
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parents:
212
diff
changeset
|
514 |
// as AddP's base CheckCastPP (LocalVar). |
803c80713999
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parents:
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diff
changeset
|
515 |
// |
803c80713999
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parents:
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|
516 |
// ArrayAllocation |
803c80713999
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parents:
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diff
changeset
|
517 |
// | |
803c80713999
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|
518 |
// CheckCastPP |
803c80713999
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parents:
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diff
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|
519 |
// | |
803c80713999
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parents:
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diff
changeset
|
520 |
// memProj (from ArrayAllocation CheckCastPP) |
803c80713999
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parents:
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diff
changeset
|
521 |
// | || |
803c80713999
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diff
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|
522 |
// | || Int (element index) |
803c80713999
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diff
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|
523 |
// | || | ConI (log(element size)) |
803c80713999
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212
diff
changeset
|
524 |
// | || | / |
803c80713999
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diff
changeset
|
525 |
// | || LShift |
803c80713999
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parents:
212
diff
changeset
|
526 |
// | || / |
803c80713999
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diff
changeset
|
527 |
// | AddP (array's element offset) |
803c80713999
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diff
changeset
|
528 |
// | | |
803c80713999
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diff
changeset
|
529 |
// | | ConI (array's offset: #12(32-bits) or #24(64-bits)) |
803c80713999
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parents:
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diff
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|
530 |
// | / / |
803c80713999
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parents:
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diff
changeset
|
531 |
// AddP (array's offset) |
803c80713999
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parents:
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diff
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|
532 |
// | |
803c80713999
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parents:
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diff
changeset
|
533 |
// Load/Store (memory operation on array's element) |
803c80713999
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parents:
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diff
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|
534 |
// |
803c80713999
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diff
changeset
|
535 |
return addp2; |
803c80713999
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parents:
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diff
changeset
|
536 |
} |
803c80713999
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parents:
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|
537 |
return NULL; |
1 | 538 |
} |
539 |
||
540 |
// |
|
541 |
// Adjust the type and inputs of an AddP which computes the |
|
542 |
// address of a field of an instance |
|
543 |
// |
|
1055
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
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diff
changeset
|
544 |
bool ConnectionGraph::split_AddP(Node *addp, Node *base, PhaseGVN *igvn) { |
238
803c80713999
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|
545 |
const TypeOopPtr *base_t = igvn->type(base)->isa_oopptr(); |
769 | 546 |
assert(base_t != NULL && base_t->is_known_instance(), "expecting instance oopptr"); |
1 | 547 |
const TypeOopPtr *t = igvn->type(addp)->isa_oopptr(); |
238
803c80713999
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parents:
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diff
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|
548 |
if (t == NULL) { |
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diff
changeset
|
549 |
// We are computing a raw address for a store captured by an Initialize |
1055
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
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diff
changeset
|
550 |
// compute an appropriate address type (cases #3 and #5). |
238
803c80713999
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|
551 |
assert(igvn->type(addp) == TypeRawPtr::NOTNULL, "must be raw pointer"); |
803c80713999
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parents:
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diff
changeset
|
552 |
assert(addp->in(AddPNode::Address)->is_Proj(), "base of raw address must be result projection from allocation"); |
1068
720698d9c89b
6741738: TypePtr::add_offset() set incorrect offset when the add overflows
kvn
parents:
1055
diff
changeset
|
553 |
intptr_t offs = (int)igvn->find_intptr_t_con(addp->in(AddPNode::Offset), Type::OffsetBot); |
238
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|
554 |
assert(offs != Type::OffsetBot, "offset must be a constant"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
555 |
t = base_t->add_offset(offs)->is_oopptr(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
556 |
} |
769 | 557 |
int inst_id = base_t->instance_id(); |
558 |
assert(!t->is_known_instance() || t->instance_id() == inst_id, |
|
1 | 559 |
"old type must be non-instance or match new type"); |
1055
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
560 |
|
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
561 |
// The type 't' could be subclass of 'base_t'. |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
562 |
// As result t->offset() could be large then base_t's size and it will |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
563 |
// cause the failure in add_offset() with narrow oops since TypeOopPtr() |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
564 |
// constructor verifies correctness of the offset. |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
565 |
// |
2131 | 566 |
// It could happened on subclass's branch (from the type profiling |
1055
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
567 |
// inlining) which was not eliminated during parsing since the exactness |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
568 |
// of the allocation type was not propagated to the subclass type check. |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
569 |
// |
3907
2a567f035d5c
6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents:
3804
diff
changeset
|
570 |
// Or the type 't' could be not related to 'base_t' at all. |
2a567f035d5c
6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents:
3804
diff
changeset
|
571 |
// It could happened when CHA type is different from MDO type on a dead path |
2a567f035d5c
6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents:
3804
diff
changeset
|
572 |
// (for example, from instanceof check) which is not collapsed during parsing. |
2a567f035d5c
6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents:
3804
diff
changeset
|
573 |
// |
1055
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
574 |
// Do nothing for such AddP node and don't process its users since |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
575 |
// this code branch will go away. |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
576 |
// |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
577 |
if (!t->is_known_instance() && |
3907
2a567f035d5c
6879362: assert(!klass_is_exact(),"only non-exact klass")
kvn
parents:
3804
diff
changeset
|
578 |
!base_t->klass()->is_subtype_of(t->klass())) { |
1055
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
579 |
return false; // bail out |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
580 |
} |
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
581 |
|
1 | 582 |
const TypeOopPtr *tinst = base_t->add_offset(t->offset())->is_oopptr(); |
4432
29b057bf202d
6896352: CTW fails hotspot/src/share/vm/opto/escape.cpp:1155
kvn
parents:
3907
diff
changeset
|
583 |
// Do NOT remove the next line: ensure a new alias index is allocated |
29b057bf202d
6896352: CTW fails hotspot/src/share/vm/opto/escape.cpp:1155
kvn
parents:
3907
diff
changeset
|
584 |
// for the instance type. Note: C++ will not remove it since the call |
29b057bf202d
6896352: CTW fails hotspot/src/share/vm/opto/escape.cpp:1155
kvn
parents:
3907
diff
changeset
|
585 |
// has side effect. |
1 | 586 |
int alias_idx = _compile->get_alias_index(tinst); |
587 |
igvn->set_type(addp, tinst); |
|
588 |
// record the allocation in the node map |
|
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
589 |
assert(ptnode_adr(addp->_idx)->_node != NULL, "should be registered"); |
1 | 590 |
set_map(addp->_idx, get_map(base->_idx)); |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
591 |
|
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
592 |
// Set addp's Base and Address to 'base'. |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
593 |
Node *abase = addp->in(AddPNode::Base); |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
594 |
Node *adr = addp->in(AddPNode::Address); |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
595 |
if (adr->is_Proj() && adr->in(0)->is_Allocate() && |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
596 |
adr->in(0)->_idx == (uint)inst_id) { |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
597 |
// Skip AddP cases #3 and #5. |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
598 |
} else { |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
599 |
assert(!abase->is_top(), "sanity"); // AddP case #3 |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
600 |
if (abase != base) { |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
601 |
igvn->hash_delete(addp); |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
602 |
addp->set_req(AddPNode::Base, base); |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
603 |
if (abase == adr) { |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
604 |
addp->set_req(AddPNode::Address, base); |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
605 |
} else { |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
606 |
// AddP case #4 (adr is array's element offset AddP node) |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
607 |
#ifdef ASSERT |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
608 |
const TypeOopPtr *atype = igvn->type(adr)->isa_oopptr(); |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
609 |
assert(adr->is_AddP() && atype != NULL && |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
610 |
atype->instance_id() == inst_id, "array's element offset should be processed first"); |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
611 |
#endif |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
612 |
} |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
613 |
igvn->hash_insert(addp); |
1 | 614 |
} |
615 |
} |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
616 |
// Put on IGVN worklist since at least addp's type was changed above. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
617 |
record_for_optimizer(addp); |
1055
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
618 |
return true; |
1 | 619 |
} |
620 |
||
621 |
// |
|
622 |
// Create a new version of orig_phi if necessary. Returns either the newly |
|
9115
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
623 |
// created phi or an existing phi. Sets create_new to indicate whether a new |
1 | 624 |
// phi was created. Cache the last newly created phi in the node map. |
625 |
// |
|
626 |
PhiNode *ConnectionGraph::create_split_phi(PhiNode *orig_phi, int alias_idx, GrowableArray<PhiNode *> &orig_phi_worklist, PhaseGVN *igvn, bool &new_created) { |
|
627 |
Compile *C = _compile; |
|
628 |
new_created = false; |
|
629 |
int phi_alias_idx = C->get_alias_index(orig_phi->adr_type()); |
|
630 |
// nothing to do if orig_phi is bottom memory or matches alias_idx |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
631 |
if (phi_alias_idx == alias_idx) { |
1 | 632 |
return orig_phi; |
633 |
} |
|
3268
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
634 |
// Have we recently created a Phi for this alias index? |
1 | 635 |
PhiNode *result = get_map_phi(orig_phi->_idx); |
636 |
if (result != NULL && C->get_alias_index(result->adr_type()) == alias_idx) { |
|
637 |
return result; |
|
638 |
} |
|
3268
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
639 |
// Previous check may fail when the same wide memory Phi was split into Phis |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
640 |
// for different memory slices. Search all Phis for this region. |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
641 |
if (result != NULL) { |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
642 |
Node* region = orig_phi->in(0); |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
643 |
for (DUIterator_Fast imax, i = region->fast_outs(imax); i < imax; i++) { |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
644 |
Node* phi = region->fast_out(i); |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
645 |
if (phi->is_Phi() && |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
646 |
C->get_alias_index(phi->as_Phi()->adr_type()) == alias_idx) { |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
647 |
assert(phi->_idx >= nodes_size(), "only new Phi per instance memory slice"); |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
648 |
return phi->as_Phi(); |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
649 |
} |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
650 |
} |
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
651 |
} |
211
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
652 |
if ((int)C->unique() + 2*NodeLimitFudgeFactor > MaxNodeLimit) { |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
653 |
if (C->do_escape_analysis() == true && !C->failing()) { |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
654 |
// Retry compilation without escape analysis. |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
655 |
// If this is the first failure, the sentinel string will "stick" |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
656 |
// to the Compile object, and the C2Compiler will see it and retry. |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
657 |
C->record_failure(C2Compiler::retry_no_escape_analysis()); |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
658 |
} |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
659 |
return NULL; |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
660 |
} |
1 | 661 |
orig_phi_worklist.append_if_missing(orig_phi); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
662 |
const TypePtr *atype = C->get_adr_type(alias_idx); |
1 | 663 |
result = PhiNode::make(orig_phi->in(0), NULL, Type::MEMORY, atype); |
3268
f034e0c86895
6851742: (EA) allocation elimination doesn't work with UseG1GC
kvn
parents:
2871
diff
changeset
|
664 |
C->copy_node_notes_to(result, orig_phi); |
1 | 665 |
igvn->set_type(result, result->bottom_type()); |
666 |
record_for_optimizer(result); |
|
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
667 |
|
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
668 |
debug_only(Node* pn = ptnode_adr(orig_phi->_idx)->_node;) |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
669 |
assert(pn == NULL || pn == orig_phi, "wrong node"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
670 |
set_map(orig_phi->_idx, result); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
671 |
ptnode_adr(orig_phi->_idx)->_node = orig_phi; |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
672 |
|
1 | 673 |
new_created = true; |
674 |
return result; |
|
675 |
} |
|
676 |
||
677 |
// |
|
9115
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
678 |
// Return a new version of Memory Phi "orig_phi" with the inputs having the |
1 | 679 |
// specified alias index. |
680 |
// |
|
681 |
PhiNode *ConnectionGraph::split_memory_phi(PhiNode *orig_phi, int alias_idx, GrowableArray<PhiNode *> &orig_phi_worklist, PhaseGVN *igvn) { |
|
682 |
||
683 |
assert(alias_idx != Compile::AliasIdxBot, "can't split out bottom memory"); |
|
684 |
Compile *C = _compile; |
|
685 |
bool new_phi_created; |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
686 |
PhiNode *result = create_split_phi(orig_phi, alias_idx, orig_phi_worklist, igvn, new_phi_created); |
1 | 687 |
if (!new_phi_created) { |
688 |
return result; |
|
689 |
} |
|
690 |
||
691 |
GrowableArray<PhiNode *> phi_list; |
|
692 |
GrowableArray<uint> cur_input; |
|
693 |
||
694 |
PhiNode *phi = orig_phi; |
|
695 |
uint idx = 1; |
|
696 |
bool finished = false; |
|
697 |
while(!finished) { |
|
698 |
while (idx < phi->req()) { |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
699 |
Node *mem = find_inst_mem(phi->in(idx), alias_idx, orig_phi_worklist, igvn); |
1 | 700 |
if (mem != NULL && mem->is_Phi()) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
701 |
PhiNode *newphi = create_split_phi(mem->as_Phi(), alias_idx, orig_phi_worklist, igvn, new_phi_created); |
1 | 702 |
if (new_phi_created) { |
703 |
// found an phi for which we created a new split, push current one on worklist and begin |
|
704 |
// processing new one |
|
705 |
phi_list.push(phi); |
|
706 |
cur_input.push(idx); |
|
707 |
phi = mem->as_Phi(); |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
708 |
result = newphi; |
1 | 709 |
idx = 1; |
710 |
continue; |
|
711 |
} else { |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
712 |
mem = newphi; |
1 | 713 |
} |
714 |
} |
|
211
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
715 |
if (C->failing()) { |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
716 |
return NULL; |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
717 |
} |
1 | 718 |
result->set_req(idx++, mem); |
719 |
} |
|
720 |
#ifdef ASSERT |
|
721 |
// verify that the new Phi has an input for each input of the original |
|
722 |
assert( phi->req() == result->req(), "must have same number of inputs."); |
|
723 |
assert( result->in(0) != NULL && result->in(0) == phi->in(0), "regions must match"); |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
724 |
#endif |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
725 |
// Check if all new phi's inputs have specified alias index. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
726 |
// Otherwise use old phi. |
1 | 727 |
for (uint i = 1; i < phi->req(); i++) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
728 |
Node* in = result->in(i); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
729 |
assert((phi->in(i) == NULL) == (in == NULL), "inputs must correspond."); |
1 | 730 |
} |
731 |
// we have finished processing a Phi, see if there are any more to do |
|
732 |
finished = (phi_list.length() == 0 ); |
|
733 |
if (!finished) { |
|
734 |
phi = phi_list.pop(); |
|
735 |
idx = cur_input.pop(); |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
736 |
PhiNode *prev_result = get_map_phi(phi->_idx); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
737 |
prev_result->set_req(idx++, result); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
738 |
result = prev_result; |
1 | 739 |
} |
740 |
} |
|
741 |
return result; |
|
742 |
} |
|
743 |
||
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
744 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
745 |
// |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
746 |
// The next methods are derived from methods in MemNode. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
747 |
// |
6741 | 748 |
static Node *step_through_mergemem(MergeMemNode *mmem, int alias_idx, const TypeOopPtr *toop) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
749 |
Node *mem = mmem; |
6741 | 750 |
// TypeOopPtr::NOTNULL+any is an OOP with unknown offset - generally |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
751 |
// means an array I have not precisely typed yet. Do not do any |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
752 |
// alias stuff with it any time soon. |
6741 | 753 |
if( toop->base() != Type::AnyPtr && |
754 |
!(toop->klass() != NULL && |
|
755 |
toop->klass()->is_java_lang_Object() && |
|
756 |
toop->offset() == Type::OffsetBot) ) { |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
757 |
mem = mmem->memory_at(alias_idx); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
758 |
// Update input if it is progress over what we have now |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
759 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
760 |
return mem; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
761 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
762 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
763 |
// |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
764 |
// Move memory users to their memory slices. |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
765 |
// |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
766 |
void ConnectionGraph::move_inst_mem(Node* n, GrowableArray<PhiNode *> &orig_phis, PhaseGVN *igvn) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
767 |
Compile* C = _compile; |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
768 |
|
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
769 |
const TypePtr* tp = igvn->type(n->in(MemNode::Address))->isa_ptr(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
770 |
assert(tp != NULL, "ptr type"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
771 |
int alias_idx = C->get_alias_index(tp); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
772 |
int general_idx = C->get_general_index(alias_idx); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
773 |
|
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
774 |
// Move users first |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
775 |
for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
776 |
Node* use = n->fast_out(i); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
777 |
if (use->is_MergeMem()) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
778 |
MergeMemNode* mmem = use->as_MergeMem(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
779 |
assert(n == mmem->memory_at(alias_idx), "should be on instance memory slice"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
780 |
if (n != mmem->memory_at(general_idx) || alias_idx == general_idx) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
781 |
continue; // Nothing to do |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
782 |
} |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
783 |
// Replace previous general reference to mem node. |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
784 |
uint orig_uniq = C->unique(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
785 |
Node* m = find_inst_mem(n, general_idx, orig_phis, igvn); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
786 |
assert(orig_uniq == C->unique(), "no new nodes"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
787 |
mmem->set_memory_at(general_idx, m); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
788 |
--imax; |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
789 |
--i; |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
790 |
} else if (use->is_MemBar()) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
791 |
assert(!use->is_Initialize(), "initializing stores should not be moved"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
792 |
if (use->req() > MemBarNode::Precedent && |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
793 |
use->in(MemBarNode::Precedent) == n) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
794 |
// Don't move related membars. |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
795 |
record_for_optimizer(use); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
796 |
continue; |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
797 |
} |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
798 |
tp = use->as_MemBar()->adr_type()->isa_ptr(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
799 |
if (tp != NULL && C->get_alias_index(tp) == alias_idx || |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
800 |
alias_idx == general_idx) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
801 |
continue; // Nothing to do |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
802 |
} |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
803 |
// Move to general memory slice. |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
804 |
uint orig_uniq = C->unique(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
805 |
Node* m = find_inst_mem(n, general_idx, orig_phis, igvn); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
806 |
assert(orig_uniq == C->unique(), "no new nodes"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
807 |
igvn->hash_delete(use); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
808 |
imax -= use->replace_edge(n, m); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
809 |
igvn->hash_insert(use); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
810 |
record_for_optimizer(use); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
811 |
--i; |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
812 |
#ifdef ASSERT |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
813 |
} else if (use->is_Mem()) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
814 |
if (use->Opcode() == Op_StoreCM && use->in(MemNode::OopStore) == n) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
815 |
// Don't move related cardmark. |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
816 |
continue; |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
817 |
} |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
818 |
// Memory nodes should have new memory input. |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
819 |
tp = igvn->type(use->in(MemNode::Address))->isa_ptr(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
820 |
assert(tp != NULL, "ptr type"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
821 |
int idx = C->get_alias_index(tp); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
822 |
assert(get_map(use->_idx) != NULL || idx == alias_idx, |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
823 |
"Following memory nodes should have new memory input or be on the same memory slice"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
824 |
} else if (use->is_Phi()) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
825 |
// Phi nodes should be split and moved already. |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
826 |
tp = use->as_Phi()->adr_type()->isa_ptr(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
827 |
assert(tp != NULL, "ptr type"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
828 |
int idx = C->get_alias_index(tp); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
829 |
assert(idx == alias_idx, "Following Phi nodes should be on the same memory slice"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
830 |
} else { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
831 |
use->dump(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
832 |
assert(false, "should not be here"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
833 |
#endif |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
834 |
} |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
835 |
} |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
836 |
} |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
837 |
|
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
838 |
// |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
839 |
// Search memory chain of "mem" to find a MemNode whose address |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
840 |
// is the specified alias index. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
841 |
// |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
842 |
Node* ConnectionGraph::find_inst_mem(Node *orig_mem, int alias_idx, GrowableArray<PhiNode *> &orig_phis, PhaseGVN *phase) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
843 |
if (orig_mem == NULL) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
844 |
return orig_mem; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
845 |
Compile* C = phase->C; |
6741 | 846 |
const TypeOopPtr *toop = C->get_adr_type(alias_idx)->isa_oopptr(); |
847 |
bool is_instance = (toop != NULL) && toop->is_known_instance(); |
|
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
848 |
Node *start_mem = C->start()->proj_out(TypeFunc::Memory); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
849 |
Node *prev = NULL; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
850 |
Node *result = orig_mem; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
851 |
while (prev != result) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
852 |
prev = result; |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
853 |
if (result == start_mem) |
2131 | 854 |
break; // hit one of our sentinels |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
855 |
if (result->is_Mem()) { |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
856 |
const Type *at = phase->type(result->in(MemNode::Address)); |
9115
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
857 |
if (at == Type::TOP) |
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
858 |
break; // Dead |
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
859 |
assert (at->isa_ptr() != NULL, "pointer type required."); |
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
860 |
int idx = C->get_alias_index(at->is_ptr()); |
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
861 |
if (idx == alias_idx) |
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
862 |
break; // Found |
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
863 |
if (!is_instance && (at->isa_oopptr() == NULL || |
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
864 |
!at->is_oopptr()->is_known_instance())) { |
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
865 |
break; // Do not skip store to general memory slice. |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
866 |
} |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
867 |
result = result->in(MemNode::Memory); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
868 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
869 |
if (!is_instance) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
870 |
continue; // don't search further for non-instance types |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
871 |
// skip over a call which does not affect this memory slice |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
872 |
if (result->is_Proj() && result->as_Proj()->_con == TypeFunc::Memory) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
873 |
Node *proj_in = result->in(0); |
6741 | 874 |
if (proj_in->is_Allocate() && proj_in->_idx == (uint)toop->instance_id()) { |
2131 | 875 |
break; // hit one of our sentinels |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
876 |
} else if (proj_in->is_Call()) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
877 |
CallNode *call = proj_in->as_Call(); |
6741 | 878 |
if (!call->may_modify(toop, phase)) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
879 |
result = call->in(TypeFunc::Memory); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
880 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
881 |
} else if (proj_in->is_Initialize()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
882 |
AllocateNode* alloc = proj_in->as_Initialize()->allocation(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
883 |
// Stop if this is the initialization for the object instance which |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
884 |
// which contains this memory slice, otherwise skip over it. |
6741 | 885 |
if (alloc == NULL || alloc->_idx != (uint)toop->instance_id()) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
886 |
result = proj_in->in(TypeFunc::Memory); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
887 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
888 |
} else if (proj_in->is_MemBar()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
889 |
result = proj_in->in(TypeFunc::Memory); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
890 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
891 |
} else if (result->is_MergeMem()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
892 |
MergeMemNode *mmem = result->as_MergeMem(); |
6741 | 893 |
result = step_through_mergemem(mmem, alias_idx, toop); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
894 |
if (result == mmem->base_memory()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
895 |
// Didn't find instance memory, search through general slice recursively. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
896 |
result = mmem->memory_at(C->get_general_index(alias_idx)); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
897 |
result = find_inst_mem(result, alias_idx, orig_phis, phase); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
898 |
if (C->failing()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
899 |
return NULL; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
900 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
901 |
mmem->set_memory_at(alias_idx, result); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
902 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
903 |
} else if (result->is_Phi() && |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
904 |
C->get_alias_index(result->as_Phi()->adr_type()) != alias_idx) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
905 |
Node *un = result->as_Phi()->unique_input(phase); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
906 |
if (un != NULL) { |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
907 |
orig_phis.append_if_missing(result->as_Phi()); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
908 |
result = un; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
909 |
} else { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
910 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
911 |
} |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
912 |
} else if (result->is_ClearArray()) { |
6741 | 913 |
if (!ClearArrayNode::step_through(&result, (uint)toop->instance_id(), phase)) { |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
914 |
// Can not bypass initialization of the instance |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
915 |
// we are looking for. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
916 |
break; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
917 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
918 |
// Otherwise skip it (the call updated 'result' value). |
2110
40e42c95ac39
6802499: EA: assert(false,"unknown node on this path")
kvn
parents:
1613
diff
changeset
|
919 |
} else if (result->Opcode() == Op_SCMemProj) { |
40e42c95ac39
6802499: EA: assert(false,"unknown node on this path")
kvn
parents:
1613
diff
changeset
|
920 |
assert(result->in(0)->is_LoadStore(), "sanity"); |
40e42c95ac39
6802499: EA: assert(false,"unknown node on this path")
kvn
parents:
1613
diff
changeset
|
921 |
const Type *at = phase->type(result->in(0)->in(MemNode::Address)); |
40e42c95ac39
6802499: EA: assert(false,"unknown node on this path")
kvn
parents:
1613
diff
changeset
|
922 |
if (at != Type::TOP) { |
40e42c95ac39
6802499: EA: assert(false,"unknown node on this path")
kvn
parents:
1613
diff
changeset
|
923 |
assert (at->isa_ptr() != NULL, "pointer type required."); |
40e42c95ac39
6802499: EA: assert(false,"unknown node on this path")
kvn
parents:
1613
diff
changeset
|
924 |
int idx = C->get_alias_index(at->is_ptr()); |
40e42c95ac39
6802499: EA: assert(false,"unknown node on this path")
kvn
parents:
1613
diff
changeset
|
925 |
assert(idx != alias_idx, "Object is not scalar replaceable if a LoadStore node access its field"); |
40e42c95ac39
6802499: EA: assert(false,"unknown node on this path")
kvn
parents:
1613
diff
changeset
|
926 |
break; |
40e42c95ac39
6802499: EA: assert(false,"unknown node on this path")
kvn
parents:
1613
diff
changeset
|
927 |
} |
40e42c95ac39
6802499: EA: assert(false,"unknown node on this path")
kvn
parents:
1613
diff
changeset
|
928 |
result = result->in(0)->in(MemNode::Memory); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
929 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
930 |
} |
955 | 931 |
if (result->is_Phi()) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
932 |
PhiNode *mphi = result->as_Phi(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
933 |
assert(mphi->bottom_type() == Type::MEMORY, "memory phi required"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
934 |
const TypePtr *t = mphi->adr_type(); |
9115
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
935 |
if (!is_instance) { |
955 | 936 |
// Push all non-instance Phis on the orig_phis worklist to update inputs |
937 |
// during Phase 4 if needed. |
|
938 |
orig_phis.append_if_missing(mphi); |
|
9115
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
939 |
} else if (C->get_alias_index(t) != alias_idx) { |
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
940 |
// Create a new Phi with the specified alias index type. |
5a28312aa393
6992789: assert(phi->_idx >= nodes_size()) failed: only new Phi per instance memory slice
kvn
parents:
8319
diff
changeset
|
941 |
result = split_memory_phi(mphi, alias_idx, orig_phis, phase); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
942 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
943 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
944 |
// the result is either MemNode, PhiNode, InitializeNode. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
945 |
return result; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
946 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
947 |
|
1 | 948 |
// |
949 |
// Convert the types of unescaped object to instance types where possible, |
|
950 |
// propagate the new type information through the graph, and update memory |
|
951 |
// edges and MergeMem inputs to reflect the new type. |
|
952 |
// |
|
953 |
// We start with allocations (and calls which may be allocations) on alloc_worklist. |
|
954 |
// The processing is done in 4 phases: |
|
955 |
// |
|
956 |
// Phase 1: Process possible allocations from alloc_worklist. Create instance |
|
957 |
// types for the CheckCastPP for allocations where possible. |
|
958 |
// Propagate the the new types through users as follows: |
|
959 |
// casts and Phi: push users on alloc_worklist |
|
960 |
// AddP: cast Base and Address inputs to the instance type |
|
961 |
// push any AddP users on alloc_worklist and push any memnode |
|
962 |
// users onto memnode_worklist. |
|
963 |
// Phase 2: Process MemNode's from memnode_worklist. compute new address type and |
|
964 |
// search the Memory chain for a store with the appropriate type |
|
965 |
// address type. If a Phi is found, create a new version with |
|
2131 | 966 |
// the appropriate memory slices from each of the Phi inputs. |
1 | 967 |
// For stores, process the users as follows: |
968 |
// MemNode: push on memnode_worklist |
|
969 |
// MergeMem: push on mergemem_worklist |
|
970 |
// Phase 3: Process MergeMem nodes from mergemem_worklist. Walk each memory slice |
|
971 |
// moving the first node encountered of each instance type to the |
|
972 |
// the input corresponding to its alias index. |
|
973 |
// appropriate memory slice. |
|
974 |
// Phase 4: Update the inputs of non-instance memory Phis and the Memory input of memnodes. |
|
975 |
// |
|
976 |
// In the following example, the CheckCastPP nodes are the cast of allocation |
|
977 |
// results and the allocation of node 29 is unescaped and eligible to be an |
|
978 |
// instance type. |
|
979 |
// |
|
980 |
// We start with: |
|
981 |
// |
|
982 |
// 7 Parm #memory |
|
983 |
// 10 ConI "12" |
|
984 |
// 19 CheckCastPP "Foo" |
|
985 |
// 20 AddP _ 19 19 10 Foo+12 alias_index=4 |
|
986 |
// 29 CheckCastPP "Foo" |
|
987 |
// 30 AddP _ 29 29 10 Foo+12 alias_index=4 |
|
988 |
// |
|
989 |
// 40 StoreP 25 7 20 ... alias_index=4 |
|
990 |
// 50 StoreP 35 40 30 ... alias_index=4 |
|
991 |
// 60 StoreP 45 50 20 ... alias_index=4 |
|
992 |
// 70 LoadP _ 60 30 ... alias_index=4 |
|
993 |
// 80 Phi 75 50 60 Memory alias_index=4 |
|
994 |
// 90 LoadP _ 80 30 ... alias_index=4 |
|
995 |
// 100 LoadP _ 80 20 ... alias_index=4 |
|
996 |
// |
|
997 |
// |
|
998 |
// Phase 1 creates an instance type for node 29 assigning it an instance id of 24 |
|
999 |
// and creating a new alias index for node 30. This gives: |
|
1000 |
// |
|
1001 |
// 7 Parm #memory |
|
1002 |
// 10 ConI "12" |
|
1003 |
// 19 CheckCastPP "Foo" |
|
1004 |
// 20 AddP _ 19 19 10 Foo+12 alias_index=4 |
|
1005 |
// 29 CheckCastPP "Foo" iid=24 |
|
1006 |
// 30 AddP _ 29 29 10 Foo+12 alias_index=6 iid=24 |
|
1007 |
// |
|
1008 |
// 40 StoreP 25 7 20 ... alias_index=4 |
|
1009 |
// 50 StoreP 35 40 30 ... alias_index=6 |
|
1010 |
// 60 StoreP 45 50 20 ... alias_index=4 |
|
1011 |
// 70 LoadP _ 60 30 ... alias_index=6 |
|
1012 |
// 80 Phi 75 50 60 Memory alias_index=4 |
|
1013 |
// 90 LoadP _ 80 30 ... alias_index=6 |
|
1014 |
// 100 LoadP _ 80 20 ... alias_index=4 |
|
1015 |
// |
|
1016 |
// In phase 2, new memory inputs are computed for the loads and stores, |
|
1017 |
// And a new version of the phi is created. In phase 4, the inputs to |
|
1018 |
// node 80 are updated and then the memory nodes are updated with the |
|
1019 |
// values computed in phase 2. This results in: |
|
1020 |
// |
|
1021 |
// 7 Parm #memory |
|
1022 |
// 10 ConI "12" |
|
1023 |
// 19 CheckCastPP "Foo" |
|
1024 |
// 20 AddP _ 19 19 10 Foo+12 alias_index=4 |
|
1025 |
// 29 CheckCastPP "Foo" iid=24 |
|
1026 |
// 30 AddP _ 29 29 10 Foo+12 alias_index=6 iid=24 |
|
1027 |
// |
|
1028 |
// 40 StoreP 25 7 20 ... alias_index=4 |
|
1029 |
// 50 StoreP 35 7 30 ... alias_index=6 |
|
1030 |
// 60 StoreP 45 40 20 ... alias_index=4 |
|
1031 |
// 70 LoadP _ 50 30 ... alias_index=6 |
|
1032 |
// 80 Phi 75 40 60 Memory alias_index=4 |
|
1033 |
// 120 Phi 75 50 50 Memory alias_index=6 |
|
1034 |
// 90 LoadP _ 120 30 ... alias_index=6 |
|
1035 |
// 100 LoadP _ 80 20 ... alias_index=4 |
|
1036 |
// |
|
1037 |
void ConnectionGraph::split_unique_types(GrowableArray<Node *> &alloc_worklist) { |
|
1038 |
GrowableArray<Node *> memnode_worklist; |
|
1039 |
GrowableArray<PhiNode *> orig_phis; |
|
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1040 |
|
7122 | 1041 |
PhaseIterGVN *igvn = _igvn; |
1 | 1042 |
uint new_index_start = (uint) _compile->num_alias_types(); |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1043 |
Arena* arena = Thread::current()->resource_area(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1044 |
VectorSet visited(arena); |
1 | 1045 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1046 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1047 |
// Phase 1: Process possible allocations from alloc_worklist. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1048 |
// Create instance types for the CheckCastPP for allocations where possible. |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1049 |
// |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1050 |
// (Note: don't forget to change the order of the second AddP node on |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1051 |
// the alloc_worklist if the order of the worklist processing is changed, |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1052 |
// see the comment in find_second_addp().) |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1053 |
// |
1 | 1054 |
while (alloc_worklist.length() != 0) { |
1055 |
Node *n = alloc_worklist.pop(); |
|
1056 |
uint ni = n->_idx; |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1057 |
const TypeOopPtr* tinst = NULL; |
1 | 1058 |
if (n->is_Call()) { |
1059 |
CallNode *alloc = n->as_Call(); |
|
1060 |
// copy escape information to call node |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1061 |
PointsToNode* ptn = ptnode_adr(alloc->_idx); |
5914
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1062 |
PointsToNode::EscapeState es = escape_state(alloc); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1063 |
// We have an allocation or call which returns a Java object, |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1064 |
// see if it is unescaped. |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1065 |
if (es != PointsToNode::NoEscape || !ptn->scalar_replaceable()) |
1 | 1066 |
continue; |
2871
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1067 |
|
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1068 |
// Find CheckCastPP for the allocate or for the return value of a call |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1069 |
n = alloc->result_cast(); |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1070 |
if (n == NULL) { // No uses except Initialize node |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1071 |
if (alloc->is_Allocate()) { |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1072 |
// Set the scalar_replaceable flag for allocation |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1073 |
// so it could be eliminated if it has no uses. |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1074 |
alloc->as_Allocate()->_is_scalar_replaceable = true; |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1075 |
} |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1076 |
continue; |
212
cd4963e67949
6667612: (Escape Analysis) disable loop cloning if it has a scalar replaceable allocation
kvn
parents:
211
diff
changeset
|
1077 |
} |
2871
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1078 |
if (!n->is_CheckCastPP()) { // not unique CheckCastPP. |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1079 |
assert(!alloc->is_Allocate(), "allocation should have unique type"); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1080 |
continue; |
2871
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1081 |
} |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1082 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1083 |
// The inline code for Object.clone() casts the allocation result to |
955 | 1084 |
// java.lang.Object and then to the actual type of the allocated |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1085 |
// object. Detect this case and use the second cast. |
955 | 1086 |
// Also detect j.l.reflect.Array.newInstance(jobject, jint) case when |
1087 |
// the allocation result is cast to java.lang.Object and then |
|
1088 |
// to the actual Array type. |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1089 |
if (alloc->is_Allocate() && n->as_Type()->type() == TypeInstPtr::NOTNULL |
955 | 1090 |
&& (alloc->is_AllocateArray() || |
1091 |
igvn->type(alloc->in(AllocateNode::KlassNode)) != TypeKlassPtr::OBJECT)) { |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1092 |
Node *cast2 = NULL; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1093 |
for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1094 |
Node *use = n->fast_out(i); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1095 |
if (use->is_CheckCastPP()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1096 |
cast2 = use; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1097 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1098 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1099 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1100 |
if (cast2 != NULL) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1101 |
n = cast2; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1102 |
} else { |
2871
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1103 |
// Non-scalar replaceable if the allocation type is unknown statically |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1104 |
// (reflection allocation), the object can't be restored during |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1105 |
// deoptimization without precise type. |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1106 |
continue; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1107 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1108 |
} |
2871
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1109 |
if (alloc->is_Allocate()) { |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1110 |
// Set the scalar_replaceable flag for allocation |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1111 |
// so it could be eliminated. |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1112 |
alloc->as_Allocate()->_is_scalar_replaceable = true; |
519e22b6900d
6836054: java/util/Arrays/CopyMethods.java fails on solaris-sparc with IllegalArgumentException
kvn
parents:
2131
diff
changeset
|
1113 |
} |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1114 |
set_escape_state(n->_idx, es); // CheckCastPP escape state |
955 | 1115 |
// in order for an object to be scalar-replaceable, it must be: |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1116 |
// - a direct allocation (not a call returning an object) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1117 |
// - non-escaping |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1118 |
// - eligible to be a unique type |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1119 |
// - not determined to be ineligible by escape analysis |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1120 |
assert(ptnode_adr(alloc->_idx)->_node != NULL && |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1121 |
ptnode_adr(n->_idx)->_node != NULL, "should be registered"); |
1 | 1122 |
set_map(alloc->_idx, n); |
1123 |
set_map(n->_idx, alloc); |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1124 |
const TypeOopPtr *t = igvn->type(n)->isa_oopptr(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1125 |
if (t == NULL) |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1126 |
continue; // not a TypeOopPtr |
955 | 1127 |
tinst = t->cast_to_exactness(true)->is_oopptr()->cast_to_instance_id(ni); |
1 | 1128 |
igvn->hash_delete(n); |
1129 |
igvn->set_type(n, tinst); |
|
1130 |
n->raise_bottom_type(tinst); |
|
1131 |
igvn->hash_insert(n); |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1132 |
record_for_optimizer(n); |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1133 |
if (alloc->is_Allocate() && (t->isa_instptr() || t->isa_aryptr())) { |
589 | 1134 |
|
1135 |
// First, put on the worklist all Field edges from Connection Graph |
|
1136 |
// which is more accurate then putting immediate users from Ideal Graph. |
|
1137 |
for (uint e = 0; e < ptn->edge_count(); e++) { |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1138 |
Node *use = ptnode_adr(ptn->edge_target(e))->_node; |
589 | 1139 |
assert(ptn->edge_type(e) == PointsToNode::FieldEdge && use->is_AddP(), |
1140 |
"only AddP nodes are Field edges in CG"); |
|
1141 |
if (use->outcnt() > 0) { // Don't process dead nodes |
|
1142 |
Node* addp2 = find_second_addp(use, use->in(AddPNode::Base)); |
|
1143 |
if (addp2 != NULL) { |
|
1144 |
assert(alloc->is_AllocateArray(),"array allocation was expected"); |
|
1145 |
alloc_worklist.append_if_missing(addp2); |
|
1146 |
} |
|
1147 |
alloc_worklist.append_if_missing(use); |
|
1148 |
} |
|
1149 |
} |
|
1150 |
||
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1151 |
// An allocation may have an Initialize which has raw stores. Scan |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1152 |
// the users of the raw allocation result and push AddP users |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1153 |
// on alloc_worklist. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1154 |
Node *raw_result = alloc->proj_out(TypeFunc::Parms); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1155 |
assert (raw_result != NULL, "must have an allocation result"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1156 |
for (DUIterator_Fast imax, i = raw_result->fast_outs(imax); i < imax; i++) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1157 |
Node *use = raw_result->fast_out(i); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1158 |
if (use->is_AddP() && use->outcnt() > 0) { // Don't process dead nodes |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1159 |
Node* addp2 = find_second_addp(use, raw_result); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1160 |
if (addp2 != NULL) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1161 |
assert(alloc->is_AllocateArray(),"array allocation was expected"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1162 |
alloc_worklist.append_if_missing(addp2); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1163 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1164 |
alloc_worklist.append_if_missing(use); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1165 |
} else if (use->is_MemBar()) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1166 |
memnode_worklist.append_if_missing(use); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1167 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1168 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1169 |
} |
1 | 1170 |
} else if (n->is_AddP()) { |
8319 | 1171 |
VectorSet* ptset = PointsTo(get_addp_base(n)); |
1172 |
assert(ptset->Size() == 1, "AddP address is unique"); |
|
1173 |
uint elem = ptset->getelem(); // Allocation node's index |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1174 |
if (elem == _phantom_object) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1175 |
assert(false, "escaped allocation"); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1176 |
continue; // Assume the value was set outside this method. |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1177 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1178 |
Node *base = get_map(elem); // CheckCastPP node |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1179 |
if (!split_AddP(n, base, igvn)) continue; // wrong type from dead path |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1180 |
tinst = igvn->type(base)->isa_oopptr(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1181 |
} else if (n->is_Phi() || |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1182 |
n->is_CheckCastPP() || |
594
9f4474e5dbaf
6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents:
590
diff
changeset
|
1183 |
n->is_EncodeP() || |
9f4474e5dbaf
6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents:
590
diff
changeset
|
1184 |
n->is_DecodeN() || |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1185 |
(n->is_ConstraintCast() && n->Opcode() == Op_CastPP)) { |
1 | 1186 |
if (visited.test_set(n->_idx)) { |
1187 |
assert(n->is_Phi(), "loops only through Phi's"); |
|
1188 |
continue; // already processed |
|
1189 |
} |
|
8319 | 1190 |
VectorSet* ptset = PointsTo(n); |
1191 |
if (ptset->Size() == 1) { |
|
1192 |
uint elem = ptset->getelem(); // Allocation node's index |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1193 |
if (elem == _phantom_object) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1194 |
assert(false, "escaped allocation"); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1195 |
continue; // Assume the value was set outside this method. |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1196 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1197 |
Node *val = get_map(elem); // CheckCastPP node |
1 | 1198 |
TypeNode *tn = n->as_Type(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1199 |
tinst = igvn->type(val)->isa_oopptr(); |
769 | 1200 |
assert(tinst != NULL && tinst->is_known_instance() && |
1201 |
(uint)tinst->instance_id() == elem , "instance type expected."); |
|
589 | 1202 |
|
1203 |
const Type *tn_type = igvn->type(tn); |
|
769 | 1204 |
const TypeOopPtr *tn_t; |
1205 |
if (tn_type->isa_narrowoop()) { |
|
1206 |
tn_t = tn_type->make_ptr()->isa_oopptr(); |
|
1207 |
} else { |
|
1208 |
tn_t = tn_type->isa_oopptr(); |
|
1209 |
} |
|
1 | 1210 |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1211 |
if (tn_t != NULL && tinst->klass()->is_subtype_of(tn_t->klass())) { |
589 | 1212 |
if (tn_type->isa_narrowoop()) { |
1213 |
tn_type = tinst->make_narrowoop(); |
|
1214 |
} else { |
|
1215 |
tn_type = tinst; |
|
1216 |
} |
|
1 | 1217 |
igvn->hash_delete(tn); |
589 | 1218 |
igvn->set_type(tn, tn_type); |
1219 |
tn->set_type(tn_type); |
|
1 | 1220 |
igvn->hash_insert(tn); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1221 |
record_for_optimizer(n); |
1055
f4fb9fb08038
6731641: assert(m->adr_type() == mach->adr_type(),"matcher should not change adr type")
kvn
parents:
961
diff
changeset
|
1222 |
} else { |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1223 |
assert(tn_type == TypePtr::NULL_PTR || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1224 |
tn_t != NULL && !tinst->klass()->is_subtype_of(tn_t->klass()), |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1225 |
"unexpected type"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1226 |
continue; // Skip dead path with different type |
1 | 1227 |
} |
1228 |
} |
|
1229 |
} else { |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1230 |
debug_only(n->dump();) |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1231 |
assert(false, "EA: unexpected node"); |
1 | 1232 |
continue; |
1233 |
} |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1234 |
// push allocation's users on appropriate worklist |
1 | 1235 |
for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) { |
1236 |
Node *use = n->fast_out(i); |
|
1237 |
if(use->is_Mem() && use->in(MemNode::Address) == n) { |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1238 |
// Load/store to instance's field |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1239 |
memnode_worklist.append_if_missing(use); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1240 |
} else if (use->is_MemBar()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1241 |
memnode_worklist.append_if_missing(use); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1242 |
} else if (use->is_AddP() && use->outcnt() > 0) { // No dead nodes |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1243 |
Node* addp2 = find_second_addp(use, n); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1244 |
if (addp2 != NULL) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1245 |
alloc_worklist.append_if_missing(addp2); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1246 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1247 |
alloc_worklist.append_if_missing(use); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1248 |
} else if (use->is_Phi() || |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1249 |
use->is_CheckCastPP() || |
594
9f4474e5dbaf
6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents:
590
diff
changeset
|
1250 |
use->is_EncodeP() || |
9f4474e5dbaf
6705887: Compressed Oops: generate x64 addressing and implicit null checks with narrow oops
kvn
parents:
590
diff
changeset
|
1251 |
use->is_DecodeN() || |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1252 |
(use->is_ConstraintCast() && use->Opcode() == Op_CastPP)) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1253 |
alloc_worklist.append_if_missing(use); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1254 |
#ifdef ASSERT |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1255 |
} else if (use->is_Mem()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1256 |
assert(use->in(MemNode::Address) != n, "EA: missing allocation reference path"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1257 |
} else if (use->is_MergeMem()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1258 |
assert(_mergemem_worklist.contains(use->as_MergeMem()), "EA: missing MergeMem node in the worklist"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1259 |
} else if (use->is_SafePoint()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1260 |
// Look for MergeMem nodes for calls which reference unique allocation |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1261 |
// (through CheckCastPP nodes) even for debug info. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1262 |
Node* m = use->in(TypeFunc::Memory); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1263 |
if (m->is_MergeMem()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1264 |
assert(_mergemem_worklist.contains(m->as_MergeMem()), "EA: missing MergeMem node in the worklist"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1265 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1266 |
} else { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1267 |
uint op = use->Opcode(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1268 |
if (!(op == Op_CmpP || op == Op_Conv2B || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1269 |
op == Op_CastP2X || op == Op_StoreCM || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1270 |
op == Op_FastLock || op == Op_AryEq || op == Op_StrComp || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1271 |
op == Op_StrEquals || op == Op_StrIndexOf)) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1272 |
n->dump(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1273 |
use->dump(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1274 |
assert(false, "EA: missing allocation reference path"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1275 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1276 |
#endif |
1 | 1277 |
} |
1278 |
} |
|
1279 |
||
1280 |
} |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1281 |
// New alias types were created in split_AddP(). |
1 | 1282 |
uint new_index_end = (uint) _compile->num_alias_types(); |
1283 |
||
1284 |
// Phase 2: Process MemNode's from memnode_worklist. compute new address type and |
|
1285 |
// compute new values for Memory inputs (the Memory inputs are not |
|
1286 |
// actually updated until phase 4.) |
|
1287 |
if (memnode_worklist.length() == 0) |
|
1288 |
return; // nothing to do |
|
1289 |
||
1290 |
while (memnode_worklist.length() != 0) { |
|
1291 |
Node *n = memnode_worklist.pop(); |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1292 |
if (visited.test_set(n->_idx)) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1293 |
continue; |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1294 |
if (n->is_Phi() || n->is_ClearArray()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1295 |
// we don't need to do anything, but the users must be pushed |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1296 |
} else if (n->is_MemBar()) { // Initialize, MemBar nodes |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1297 |
// we don't need to do anything, but the users must be pushed |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1298 |
n = n->as_MemBar()->proj_out(TypeFunc::Memory); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1299 |
if (n == NULL) |
1 | 1300 |
continue; |
1301 |
} else { |
|
1302 |
assert(n->is_Mem(), "memory node required."); |
|
1303 |
Node *addr = n->in(MemNode::Address); |
|
1304 |
const Type *addr_t = igvn->type(addr); |
|
1305 |
if (addr_t == Type::TOP) |
|
1306 |
continue; |
|
1307 |
assert (addr_t->isa_ptr() != NULL, "pointer type required."); |
|
1308 |
int alias_idx = _compile->get_alias_index(addr_t->is_ptr()); |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1309 |
assert ((uint)alias_idx < new_index_end, "wrong alias index"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1310 |
Node *mem = find_inst_mem(n->in(MemNode::Memory), alias_idx, orig_phis, igvn); |
211
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
1311 |
if (_compile->failing()) { |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
1312 |
return; |
e2b60448c234
6667610: (Escape Analysis) retry compilation without EA if it fails
kvn
parents:
1
diff
changeset
|
1313 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1314 |
if (mem != n->in(MemNode::Memory)) { |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1315 |
// We delay the memory edge update since we need old one in |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1316 |
// MergeMem code below when instances memory slices are separated. |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1317 |
debug_only(Node* pn = ptnode_adr(n->_idx)->_node;) |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1318 |
assert(pn == NULL || pn == n, "wrong node"); |
1 | 1319 |
set_map(n->_idx, mem); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1320 |
ptnode_adr(n->_idx)->_node = n; |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1321 |
} |
1 | 1322 |
if (n->is_Load()) { |
1323 |
continue; // don't push users |
|
1324 |
} else if (n->is_LoadStore()) { |
|
1325 |
// get the memory projection |
|
1326 |
for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) { |
|
1327 |
Node *use = n->fast_out(i); |
|
1328 |
if (use->Opcode() == Op_SCMemProj) { |
|
1329 |
n = use; |
|
1330 |
break; |
|
1331 |
} |
|
1332 |
} |
|
1333 |
assert(n->Opcode() == Op_SCMemProj, "memory projection required"); |
|
1334 |
} |
|
1335 |
} |
|
1336 |
// push user on appropriate worklist |
|
1337 |
for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) { |
|
1338 |
Node *use = n->fast_out(i); |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1339 |
if (use->is_Phi() || use->is_ClearArray()) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1340 |
memnode_worklist.append_if_missing(use); |
1 | 1341 |
} else if(use->is_Mem() && use->in(MemNode::Memory) == n) { |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1342 |
if (use->Opcode() == Op_StoreCM) // Ignore cardmark stores |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1343 |
continue; |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1344 |
memnode_worklist.append_if_missing(use); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1345 |
} else if (use->is_MemBar()) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1346 |
memnode_worklist.append_if_missing(use); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1347 |
#ifdef ASSERT |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1348 |
} else if(use->is_Mem()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1349 |
assert(use->in(MemNode::Memory) != n, "EA: missing memory path"); |
1 | 1350 |
} else if (use->is_MergeMem()) { |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1351 |
assert(_mergemem_worklist.contains(use->as_MergeMem()), "EA: missing MergeMem node in the worklist"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1352 |
} else { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1353 |
uint op = use->Opcode(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1354 |
if (!(op == Op_StoreCM || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1355 |
(op == Op_CallLeaf && use->as_CallLeaf()->_name != NULL && |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1356 |
strcmp(use->as_CallLeaf()->_name, "g1_wb_pre") == 0) || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1357 |
op == Op_AryEq || op == Op_StrComp || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1358 |
op == Op_StrEquals || op == Op_StrIndexOf)) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1359 |
n->dump(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1360 |
use->dump(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1361 |
assert(false, "EA: missing memory path"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1362 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1363 |
#endif |
1 | 1364 |
} |
1365 |
} |
|
1366 |
} |
|
1367 |
||
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1368 |
// Phase 3: Process MergeMem nodes from mergemem_worklist. |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1369 |
// Walk each memory slice moving the first node encountered of each |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1370 |
// instance type to the the input corresponding to its alias index. |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1371 |
uint length = _mergemem_worklist.length(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1372 |
for( uint next = 0; next < length; ++next ) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1373 |
MergeMemNode* nmm = _mergemem_worklist.at(next); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1374 |
assert(!visited.test_set(nmm->_idx), "should not be visited before"); |
1 | 1375 |
// Note: we don't want to use MergeMemStream here because we only want to |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1376 |
// scan inputs which exist at the start, not ones we add during processing. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1377 |
// Note 2: MergeMem may already contains instance memory slices added |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1378 |
// during find_inst_mem() call when memory nodes were processed above. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1379 |
igvn->hash_delete(nmm); |
1 | 1380 |
uint nslices = nmm->req(); |
1381 |
for (uint i = Compile::AliasIdxRaw+1; i < nslices; i++) { |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1382 |
Node* mem = nmm->in(i); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1383 |
Node* cur = NULL; |
1 | 1384 |
if (mem == NULL || mem->is_top()) |
1385 |
continue; |
|
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1386 |
// First, update mergemem by moving memory nodes to corresponding slices |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1387 |
// if their type became more precise since this mergemem was created. |
1 | 1388 |
while (mem->is_Mem()) { |
1389 |
const Type *at = igvn->type(mem->in(MemNode::Address)); |
|
1390 |
if (at != Type::TOP) { |
|
1391 |
assert (at->isa_ptr() != NULL, "pointer type required."); |
|
1392 |
uint idx = (uint)_compile->get_alias_index(at->is_ptr()); |
|
1393 |
if (idx == i) { |
|
1394 |
if (cur == NULL) |
|
1395 |
cur = mem; |
|
1396 |
} else { |
|
1397 |
if (idx >= nmm->req() || nmm->is_empty_memory(nmm->in(idx))) { |
|
1398 |
nmm->set_memory_at(idx, mem); |
|
1399 |
} |
|
1400 |
} |
|
1401 |
} |
|
1402 |
mem = mem->in(MemNode::Memory); |
|
1403 |
} |
|
1404 |
nmm->set_memory_at(i, (cur != NULL) ? cur : mem); |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1405 |
// Find any instance of the current type if we haven't encountered |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1406 |
// already a memory slice of the instance along the memory chain. |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1407 |
for (uint ni = new_index_start; ni < new_index_end; ni++) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1408 |
if((uint)_compile->get_general_index(ni) == i) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1409 |
Node *m = (ni >= nmm->req()) ? nmm->empty_memory() : nmm->in(ni); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1410 |
if (nmm->is_empty_memory(m)) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1411 |
Node* result = find_inst_mem(mem, ni, orig_phis, igvn); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1412 |
if (_compile->failing()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1413 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1414 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1415 |
nmm->set_memory_at(ni, result); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1416 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1417 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1418 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1419 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1420 |
// Find the rest of instances values |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1421 |
for (uint ni = new_index_start; ni < new_index_end; ni++) { |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1422 |
const TypeOopPtr *tinst = _compile->get_adr_type(ni)->isa_oopptr(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1423 |
Node* result = step_through_mergemem(nmm, ni, tinst); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1424 |
if (result == nmm->base_memory()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1425 |
// Didn't find instance memory, search through general slice recursively. |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1426 |
result = nmm->memory_at(_compile->get_general_index(ni)); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1427 |
result = find_inst_mem(result, ni, orig_phis, igvn); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1428 |
if (_compile->failing()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1429 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1430 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1431 |
nmm->set_memory_at(ni, result); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1432 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1433 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1434 |
igvn->hash_insert(nmm); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1435 |
record_for_optimizer(nmm); |
1 | 1436 |
} |
1437 |
||
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1438 |
// Phase 4: Update the inputs of non-instance memory Phis and |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1439 |
// the Memory input of memnodes |
1 | 1440 |
// First update the inputs of any non-instance Phi's from |
1441 |
// which we split out an instance Phi. Note we don't have |
|
1442 |
// to recursively process Phi's encounted on the input memory |
|
1443 |
// chains as is done in split_memory_phi() since they will |
|
1444 |
// also be processed here. |
|
955 | 1445 |
for (int j = 0; j < orig_phis.length(); j++) { |
1446 |
PhiNode *phi = orig_phis.at(j); |
|
1 | 1447 |
int alias_idx = _compile->get_alias_index(phi->adr_type()); |
1448 |
igvn->hash_delete(phi); |
|
1449 |
for (uint i = 1; i < phi->req(); i++) { |
|
1450 |
Node *mem = phi->in(i); |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1451 |
Node *new_mem = find_inst_mem(mem, alias_idx, orig_phis, igvn); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1452 |
if (_compile->failing()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1453 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1454 |
} |
1 | 1455 |
if (mem != new_mem) { |
1456 |
phi->set_req(i, new_mem); |
|
1457 |
} |
|
1458 |
} |
|
1459 |
igvn->hash_insert(phi); |
|
1460 |
record_for_optimizer(phi); |
|
1461 |
} |
|
1462 |
||
1463 |
// Update the memory inputs of MemNodes with the value we computed |
|
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1464 |
// in Phase 2 and move stores memory users to corresponding memory slices. |
9327
23532ae85295
7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents:
9115
diff
changeset
|
1465 |
|
23532ae85295
7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents:
9115
diff
changeset
|
1466 |
// Disable memory split verification code until the fix for 6984348. |
23532ae85295
7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents:
9115
diff
changeset
|
1467 |
// Currently it produces false negative results since it does not cover all cases. |
23532ae85295
7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents:
9115
diff
changeset
|
1468 |
#if 0 // ifdef ASSERT |
8319 | 1469 |
visited.Reset(); |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1470 |
Node_Stack old_mems(arena, _compile->unique() >> 2); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1471 |
#endif |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1472 |
for (uint i = 0; i < nodes_size(); i++) { |
1 | 1473 |
Node *nmem = get_map(i); |
1474 |
if (nmem != NULL) { |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1475 |
Node *n = ptnode_adr(i)->_node; |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1476 |
assert(n != NULL, "sanity"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1477 |
if (n->is_Mem()) { |
9327
23532ae85295
7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents:
9115
diff
changeset
|
1478 |
#if 0 // ifdef ASSERT |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1479 |
Node* old_mem = n->in(MemNode::Memory); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1480 |
if (!visited.test_set(old_mem->_idx)) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1481 |
old_mems.push(old_mem, old_mem->outcnt()); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1482 |
} |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1483 |
#endif |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1484 |
assert(n->in(MemNode::Memory) != nmem, "sanity"); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1485 |
if (!n->is_Load()) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1486 |
// Move memory users of a store first. |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1487 |
move_inst_mem(n, orig_phis, igvn); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1488 |
} |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1489 |
// Now update memory input |
1 | 1490 |
igvn->hash_delete(n); |
1491 |
n->set_req(MemNode::Memory, nmem); |
|
1492 |
igvn->hash_insert(n); |
|
1493 |
record_for_optimizer(n); |
|
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1494 |
} else { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1495 |
assert(n->is_Allocate() || n->is_CheckCastPP() || |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1496 |
n->is_AddP() || n->is_Phi(), "unknown node used for set_map()"); |
1 | 1497 |
} |
1498 |
} |
|
1499 |
} |
|
9327
23532ae85295
7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents:
9115
diff
changeset
|
1500 |
#if 0 // ifdef ASSERT |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1501 |
// Verify that memory was split correctly |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1502 |
while (old_mems.is_nonempty()) { |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1503 |
Node* old_mem = old_mems.node(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1504 |
uint old_cnt = old_mems.index(); |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1505 |
old_mems.pop(); |
9327
23532ae85295
7026700: regression in 6u24-rev-b23: Crash in C2 compiler in PhaseIdealLoop::build_loop_late_post
kvn
parents:
9115
diff
changeset
|
1506 |
assert(old_cnt == old_mem->outcnt(), "old mem could be lost"); |
4471
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1507 |
} |
78c7cc2ae5dd
6896727: nsk/logging/LoggingPermission/LoggingPermission/logperm002 fails with G1, EscapeAnalisys
kvn
parents:
4470
diff
changeset
|
1508 |
#endif |
1 | 1509 |
} |
1510 |
||
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1511 |
bool ConnectionGraph::has_candidates(Compile *C) { |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1512 |
// EA brings benefits only when the code has allocations and/or locks which |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1513 |
// are represented by ideal Macro nodes. |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1514 |
int cnt = C->macro_count(); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1515 |
for( int i=0; i < cnt; i++ ) { |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1516 |
Node *n = C->macro_node(i); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1517 |
if ( n->is_Allocate() ) |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1518 |
return true; |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1519 |
if( n->is_Lock() ) { |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1520 |
Node* obj = n->as_Lock()->obj_node()->uncast(); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1521 |
if( !(obj->is_Parm() || obj->is_Con()) ) |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1522 |
return true; |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1523 |
} |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1524 |
} |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1525 |
return false; |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1526 |
} |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1527 |
|
5914
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1528 |
void ConnectionGraph::do_analysis(Compile *C, PhaseIterGVN *igvn) { |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1529 |
// Add ConP#NULL and ConN#NULL nodes before ConnectionGraph construction |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1530 |
// to create space for them in ConnectionGraph::_nodes[]. |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1531 |
Node* oop_null = igvn->zerocon(T_OBJECT); |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1532 |
Node* noop_null = igvn->zerocon(T_NARROWOOP); |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1533 |
|
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1534 |
ConnectionGraph* congraph = new(C->comp_arena()) ConnectionGraph(C, igvn); |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1535 |
// Perform escape analysis |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1536 |
if (congraph->compute_escape()) { |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1537 |
// There are non escaping objects. |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1538 |
C->set_congraph(congraph); |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1539 |
} |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1540 |
|
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1541 |
// Cleanup. |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1542 |
if (oop_null->outcnt() == 0) |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1543 |
igvn->hash_delete(oop_null); |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1544 |
if (noop_null->outcnt() == 0) |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1545 |
igvn->hash_delete(noop_null); |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1546 |
} |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1547 |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1548 |
bool ConnectionGraph::compute_escape() { |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1549 |
Compile* C = _compile; |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1550 |
|
589 | 1551 |
// 1. Populate Connection Graph (CG) with Ideal nodes. |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1552 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1553 |
Unique_Node_List worklist_init; |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1554 |
worklist_init.map(C->unique(), NULL); // preallocate space |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1555 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1556 |
// Initialize worklist |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1557 |
if (C->root() != NULL) { |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1558 |
worklist_init.push(C->root()); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1559 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1560 |
|
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1561 |
GrowableArray<Node*> alloc_worklist; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1562 |
GrowableArray<Node*> addp_worklist; |
11189 | 1563 |
GrowableArray<Node*> ptr_cmp_worklist; |
5914
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1564 |
PhaseGVN* igvn = _igvn; |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1565 |
bool has_allocations = false; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1566 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1567 |
// Push all useful nodes onto CG list and set their type. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1568 |
for( uint next = 0; next < worklist_init.size(); ++next ) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1569 |
Node* n = worklist_init.at(next); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1570 |
record_for_escape_analysis(n, igvn); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1571 |
// Only allocations and java static calls results are checked |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1572 |
// for an escape status. See process_call_result() below. |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1573 |
if (n->is_Allocate() || n->is_CallStaticJava() && |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1574 |
ptnode_adr(n->_idx)->node_type() == PointsToNode::JavaObject) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1575 |
has_allocations = true; |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1576 |
if (n->is_Allocate()) |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1577 |
alloc_worklist.append(n); |
11189 | 1578 |
} else if(n->is_AddP()) { |
7122 | 1579 |
// Collect address nodes. Use them during stage 3 below |
1580 |
// to build initial connection graph field edges. |
|
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1581 |
addp_worklist.append(n); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1582 |
} else if (n->is_MergeMem()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1583 |
// Collect all MergeMem nodes to add memory slices for |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1584 |
// scalar replaceable objects in split_unique_types(). |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1585 |
_mergemem_worklist.append(n->as_MergeMem()); |
11189 | 1586 |
} else if (OptimizePtrCompare && n->is_Cmp() && |
1587 |
(n->Opcode() == Op_CmpP || n->Opcode() == Op_CmpN)) { |
|
1588 |
// Compare pointers nodes |
|
1589 |
ptr_cmp_worklist.append(n); |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1590 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1591 |
for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1592 |
Node* m = n->fast_out(i); // Get user |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1593 |
worklist_init.push(m); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1594 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1595 |
} |
1 | 1596 |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1597 |
if (!has_allocations) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1598 |
_collecting = false; |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1599 |
return false; // Nothing to do. |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1600 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1601 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1602 |
// 2. First pass to create simple CG edges (doesn't require to walk CG). |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1603 |
uint delayed_size = _delayed_worklist.size(); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1604 |
for( uint next = 0; next < delayed_size; ++next ) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1605 |
Node* n = _delayed_worklist.at(next); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1606 |
build_connection_graph(n, igvn); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1607 |
} |
1 | 1608 |
|
7122 | 1609 |
// 3. Pass to create initial fields edges (JavaObject -F-> AddP) |
1610 |
// to reduce number of iterations during stage 4 below. |
|
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1611 |
uint addp_length = addp_worklist.length(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1612 |
for( uint next = 0; next < addp_length; ++next ) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1613 |
Node* n = addp_worklist.at(next); |
7122 | 1614 |
Node* base = get_addp_base(n); |
11189 | 1615 |
if (base->is_Proj() && base->in(0)->is_Call()) |
7122 | 1616 |
base = base->in(0); |
1617 |
PointsToNode::NodeType nt = ptnode_adr(base->_idx)->node_type(); |
|
1618 |
if (nt == PointsToNode::JavaObject) { |
|
1619 |
build_connection_graph(n, igvn); |
|
1620 |
} |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1621 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1622 |
|
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1623 |
GrowableArray<int> cg_worklist; |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1624 |
cg_worklist.append(_phantom_object); |
7122 | 1625 |
GrowableArray<uint> worklist; |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1626 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1627 |
// 4. Build Connection Graph which need |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1628 |
// to walk the connection graph. |
7122 | 1629 |
_progress = false; |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1630 |
for (uint ni = 0; ni < nodes_size(); ni++) { |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1631 |
PointsToNode* ptn = ptnode_adr(ni); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1632 |
Node *n = ptn->_node; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1633 |
if (n != NULL) { // Call, AddP, LoadP, StoreP |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1634 |
build_connection_graph(n, igvn); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1635 |
if (ptn->node_type() != PointsToNode::UnknownType) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1636 |
cg_worklist.append(n->_idx); // Collect CG nodes |
7122 | 1637 |
if (!_processed.test(n->_idx)) |
1638 |
worklist.append(n->_idx); // Collect C/A/L/S nodes |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1639 |
} |
1 | 1640 |
} |
1641 |
||
7122 | 1642 |
// After IGVN user nodes may have smaller _idx than |
1643 |
// their inputs so they will be processed first in |
|
1644 |
// previous loop. Because of that not all Graph |
|
1645 |
// edges will be created. Walk over interesting |
|
1646 |
// nodes again until no new edges are created. |
|
1647 |
// |
|
1648 |
// Normally only 1-3 passes needed to build |
|
1649 |
// Connection Graph depending on graph complexity. |
|
7710
f2503940a87b
7003130: assert(iterations<CG_BUILD_ITER_LIMIT) failed: infinite EA connection graph
kvn
parents:
7397
diff
changeset
|
1650 |
// Observed 8 passes in jvm2008 compiler.compiler. |
f2503940a87b
7003130: assert(iterations<CG_BUILD_ITER_LIMIT) failed: infinite EA connection graph
kvn
parents:
7397
diff
changeset
|
1651 |
// Set limit to 20 to catch situation when something |
7122 | 1652 |
// did go wrong and recompile the method without EA. |
1653 |
||
7710
f2503940a87b
7003130: assert(iterations<CG_BUILD_ITER_LIMIT) failed: infinite EA connection graph
kvn
parents:
7397
diff
changeset
|
1654 |
#define CG_BUILD_ITER_LIMIT 20 |
7122 | 1655 |
|
1656 |
uint length = worklist.length(); |
|
1657 |
int iterations = 0; |
|
1658 |
while(_progress && (iterations++ < CG_BUILD_ITER_LIMIT)) { |
|
1659 |
_progress = false; |
|
1660 |
for( uint next = 0; next < length; ++next ) { |
|
1661 |
int ni = worklist.at(next); |
|
1662 |
PointsToNode* ptn = ptnode_adr(ni); |
|
1663 |
Node* n = ptn->_node; |
|
1664 |
assert(n != NULL, "should be known node"); |
|
1665 |
build_connection_graph(n, igvn); |
|
1666 |
} |
|
1667 |
} |
|
1668 |
if (iterations >= CG_BUILD_ITER_LIMIT) { |
|
1669 |
assert(iterations < CG_BUILD_ITER_LIMIT, |
|
1670 |
err_msg("infinite EA connection graph build with %d nodes and worklist size %d", |
|
1671 |
nodes_size(), length)); |
|
1672 |
// Possible infinite build_connection_graph loop, |
|
1673 |
// retry compilation without escape analysis. |
|
1674 |
C->record_failure(C2Compiler::retry_no_escape_analysis()); |
|
1675 |
_collecting = false; |
|
1676 |
return false; |
|
1677 |
} |
|
1678 |
#undef CG_BUILD_ITER_LIMIT |
|
1679 |
||
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1680 |
Arena* arena = Thread::current()->resource_area(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1681 |
VectorSet visited(arena); |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1682 |
|
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1683 |
// 5. Find fields initializing values for not escaped allocations |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1684 |
uint alloc_length = alloc_worklist.length(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1685 |
for (uint next = 0; next < alloc_length; ++next) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1686 |
Node* n = alloc_worklist.at(next); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1687 |
if (ptnode_adr(n->_idx)->escape_state() == PointsToNode::NoEscape) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1688 |
find_init_values(n, &visited, igvn); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1689 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1690 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1691 |
|
7122 | 1692 |
worklist.clear(); |
1 | 1693 |
|
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1694 |
// 6. Remove deferred edges from the graph. |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1695 |
uint cg_length = cg_worklist.length(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1696 |
for (uint next = 0; next < cg_length; ++next) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1697 |
int ni = cg_worklist.at(next); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1698 |
PointsToNode* ptn = ptnode_adr(ni); |
1 | 1699 |
PointsToNode::NodeType nt = ptn->node_type(); |
1700 |
if (nt == PointsToNode::LocalVar || nt == PointsToNode::Field) { |
|
7122 | 1701 |
remove_deferred(ni, &worklist, &visited); |
1 | 1702 |
} |
1703 |
} |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1704 |
|
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1705 |
// 7. Adjust escape state of nonescaping objects. |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1706 |
for (uint next = 0; next < addp_length; ++next) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1707 |
Node* n = addp_worklist.at(next); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1708 |
adjust_escape_state(n); |
1 | 1709 |
} |
1710 |
||
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1711 |
// 8. Propagate escape states. |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1712 |
worklist.clear(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1713 |
|
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1714 |
// mark all nodes reachable from GlobalEscape nodes |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1715 |
(void)propagate_escape_state(&cg_worklist, &worklist, PointsToNode::GlobalEscape); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1716 |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1717 |
// mark all nodes reachable from ArgEscape nodes |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1718 |
bool has_non_escaping_obj = propagate_escape_state(&cg_worklist, &worklist, PointsToNode::ArgEscape); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1719 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1720 |
// push all NoEscape nodes on the worklist |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1721 |
for( uint next = 0; next < cg_length; ++next ) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1722 |
int nk = cg_worklist.at(next); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1723 |
if (ptnode_adr(nk)->escape_state() == PointsToNode::NoEscape) |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1724 |
worklist.push(nk); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1725 |
} |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1726 |
alloc_worklist.clear(); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1727 |
// mark all nodes reachable from NoEscape nodes |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1728 |
while(worklist.length() > 0) { |
10970
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1729 |
uint nk = worklist.pop(); |
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1730 |
PointsToNode* ptn = ptnode_adr(nk); |
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1731 |
if (ptn->node_type() == PointsToNode::JavaObject && |
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1732 |
!(nk == _noop_null || nk == _oop_null)) |
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1733 |
has_non_escaping_obj = true; // Non Escape |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1734 |
Node* n = ptn->_node; |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1735 |
bool scalar_replaceable = ptn->scalar_replaceable(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1736 |
if (n->is_Allocate() && scalar_replaceable) { |
2131 | 1737 |
// Push scalar replaceable allocations on alloc_worklist |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1738 |
// for processing in split_unique_types(). Note, |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1739 |
// following code may change scalar_replaceable value. |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1740 |
alloc_worklist.append(n); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1741 |
} |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1742 |
uint e_cnt = ptn->edge_count(); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1743 |
for (uint ei = 0; ei < e_cnt; ei++) { |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1744 |
uint npi = ptn->edge_target(ei); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1745 |
PointsToNode *np = ptnode_adr(npi); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1746 |
if (np->escape_state() < PointsToNode::NoEscape) { |
10970
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1747 |
set_escape_state(npi, PointsToNode::NoEscape); |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1748 |
if (!scalar_replaceable) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1749 |
np->set_scalar_replaceable(false); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1750 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1751 |
worklist.push(npi); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1752 |
} else if (np->scalar_replaceable() && !scalar_replaceable) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1753 |
// Propagate scalar_replaceable value. |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1754 |
np->set_scalar_replaceable(false); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1755 |
worklist.push(npi); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1756 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1757 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1758 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1759 |
|
1 | 1760 |
_collecting = false; |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1761 |
assert(C->unique() == nodes_size(), "there should be no new ideal nodes during ConnectionGraph build"); |
1 | 1762 |
|
10970
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1763 |
assert(ptnode_adr(_oop_null)->escape_state() == PointsToNode::NoEscape, "sanity"); |
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1764 |
if (UseCompressedOops) { |
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1765 |
assert(ptnode_adr(_noop_null)->escape_state() == PointsToNode::NoEscape, "sanity"); |
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1766 |
} |
3767212a2b7c
7059039: EA: don't change non-escaping state of NULL pointer
kvn
parents:
9977
diff
changeset
|
1767 |
|
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1768 |
if (EliminateLocks && has_non_escaping_obj) { |
9977
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1769 |
// Mark locks before changing ideal graph. |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1770 |
int cnt = C->macro_count(); |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1771 |
for( int i=0; i < cnt; i++ ) { |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1772 |
Node *n = C->macro_node(i); |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1773 |
if (n->is_AbstractLock()) { // Lock and Unlock nodes |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1774 |
AbstractLockNode* alock = n->as_AbstractLock(); |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1775 |
if (!alock->is_eliminated()) { |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1776 |
PointsToNode::EscapeState es = escape_state(alock->obj_node()); |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1777 |
assert(es != PointsToNode::UnknownEscape, "should know"); |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1778 |
if (es != PointsToNode::UnknownEscape && es != PointsToNode::GlobalEscape) { |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1779 |
// Mark it eliminated |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1780 |
alock->set_eliminated(); |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1781 |
} |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1782 |
} |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1783 |
} |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1784 |
} |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1785 |
} |
c23d1a8dcaa9
7050280: assert(u->as_Unlock()->is_eliminated()) failed: sanity
kvn
parents:
9327
diff
changeset
|
1786 |
|
11189 | 1787 |
if (OptimizePtrCompare && has_non_escaping_obj) { |
1788 |
// Add ConI(#CC_GT) and ConI(#CC_EQ). |
|
1789 |
_pcmp_neq = igvn->makecon(TypeInt::CC_GT); |
|
1790 |
_pcmp_eq = igvn->makecon(TypeInt::CC_EQ); |
|
1791 |
// Optimize objects compare. |
|
1792 |
while (ptr_cmp_worklist.length() != 0) { |
|
1793 |
Node *n = ptr_cmp_worklist.pop(); |
|
1794 |
Node *res = optimize_ptr_compare(n); |
|
1795 |
if (res != NULL) { |
|
1796 |
#ifndef PRODUCT |
|
1797 |
if (PrintOptimizePtrCompare) { |
|
1798 |
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")); |
|
1799 |
if (Verbose) { |
|
1800 |
n->dump(1); |
|
1801 |
} |
|
1802 |
} |
|
1803 |
#endif |
|
1804 |
_igvn->replace_node(n, res); |
|
1805 |
} |
|
1806 |
} |
|
1807 |
// cleanup |
|
1808 |
if (_pcmp_neq->outcnt() == 0) |
|
1809 |
igvn->hash_delete(_pcmp_neq); |
|
1810 |
if (_pcmp_eq->outcnt() == 0) |
|
1811 |
igvn->hash_delete(_pcmp_eq); |
|
1812 |
} |
|
1813 |
||
5914
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1814 |
#ifndef PRODUCT |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1815 |
if (PrintEscapeAnalysis) { |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1816 |
dump(); // Dump ConnectionGraph |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1817 |
} |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1818 |
#endif |
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
1819 |
|
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1820 |
bool has_scalar_replaceable_candidates = false; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1821 |
alloc_length = alloc_worklist.length(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1822 |
for (uint next = 0; next < alloc_length; ++next) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1823 |
Node* n = alloc_worklist.at(next); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1824 |
PointsToNode* ptn = ptnode_adr(n->_idx); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1825 |
assert(ptn->escape_state() == PointsToNode::NoEscape, "sanity"); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1826 |
if (ptn->scalar_replaceable()) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1827 |
has_scalar_replaceable_candidates = true; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1828 |
break; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1829 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1830 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1831 |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1832 |
if ( has_scalar_replaceable_candidates && |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1833 |
C->AliasLevel() >= 3 && EliminateAllocations ) { |
1 | 1834 |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1835 |
// Now use the escape information to create unique types for |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1836 |
// scalar replaceable objects. |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1837 |
split_unique_types(alloc_worklist); |
1 | 1838 |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1839 |
if (C->failing()) return false; |
1 | 1840 |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1841 |
C->print_method("After Escape Analysis", 2); |
1 | 1842 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1843 |
#ifdef ASSERT |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1844 |
} else if (Verbose && (PrintEscapeAnalysis || PrintEliminateAllocations)) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1845 |
tty->print("=== No allocations eliminated for "); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1846 |
C->method()->print_short_name(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1847 |
if(!EliminateAllocations) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1848 |
tty->print(" since EliminateAllocations is off ==="); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1849 |
} else if(!has_scalar_replaceable_candidates) { |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1850 |
tty->print(" since there are no scalar replaceable candidates ==="); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1851 |
} else if(C->AliasLevel() < 3) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1852 |
tty->print(" since AliasLevel < 3 ==="); |
1 | 1853 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1854 |
tty->cr(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
1855 |
#endif |
1 | 1856 |
} |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
1857 |
return has_non_escaping_obj; |
1 | 1858 |
} |
1859 |
||
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1860 |
// Find fields initializing values for allocations. |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1861 |
void ConnectionGraph::find_init_values(Node* alloc, VectorSet* visited, PhaseTransform* phase) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1862 |
assert(alloc->is_Allocate(), "Should be called for Allocate nodes only"); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1863 |
PointsToNode* pta = ptnode_adr(alloc->_idx); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1864 |
assert(pta->escape_state() == PointsToNode::NoEscape, "Not escaped Allocate nodes only"); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1865 |
InitializeNode* ini = alloc->as_Allocate()->initialization(); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1866 |
|
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1867 |
Compile* C = _compile; |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1868 |
visited->Reset(); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1869 |
// Check if a oop field's initializing value is recorded and add |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1870 |
// a corresponding NULL field's value if it is not recorded. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1871 |
// Connection Graph does not record a default initialization by NULL |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1872 |
// captured by Initialize node. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1873 |
// |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1874 |
uint ae_cnt = pta->edge_count(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1875 |
for (uint ei = 0; ei < ae_cnt; ei++) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1876 |
uint nidx = pta->edge_target(ei); // Field (AddP) |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1877 |
PointsToNode* ptn = ptnode_adr(nidx); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1878 |
assert(ptn->_node->is_AddP(), "Should be AddP nodes only"); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1879 |
int offset = ptn->offset(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1880 |
if (offset != Type::OffsetBot && |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1881 |
offset != oopDesc::klass_offset_in_bytes() && |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1882 |
!visited->test_set(offset)) { |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1883 |
|
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1884 |
// Check only oop fields. |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1885 |
const Type* adr_type = ptn->_node->as_AddP()->bottom_type(); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1886 |
BasicType basic_field_type = T_INT; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1887 |
if (adr_type->isa_instptr()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1888 |
ciField* field = C->alias_type(adr_type->isa_instptr())->field(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1889 |
if (field != NULL) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1890 |
basic_field_type = field->layout_type(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1891 |
} else { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1892 |
// Ignore non field load (for example, klass load) |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1893 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1894 |
} else if (adr_type->isa_aryptr()) { |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1895 |
if (offset != arrayOopDesc::length_offset_in_bytes()) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1896 |
const Type* elemtype = adr_type->isa_aryptr()->elem(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1897 |
basic_field_type = elemtype->array_element_basic_type(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1898 |
} else { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1899 |
// Ignore array length load |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1900 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1901 |
#ifdef ASSERT |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1902 |
} else { |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1903 |
// Raw pointers are used for initializing stores so skip it |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1904 |
// since it should be recorded already |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1905 |
Node* base = get_addp_base(ptn->_node); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1906 |
assert(adr_type->isa_rawptr() && base->is_Proj() && |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1907 |
(base->in(0) == alloc),"unexpected pointer type"); |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1908 |
#endif |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1909 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1910 |
if (basic_field_type == T_OBJECT || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1911 |
basic_field_type == T_NARROWOOP || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1912 |
basic_field_type == T_ARRAY) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1913 |
Node* value = NULL; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1914 |
if (ini != NULL) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1915 |
BasicType ft = UseCompressedOops ? T_NARROWOOP : T_OBJECT; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1916 |
Node* store = ini->find_captured_store(offset, type2aelembytes(ft), phase); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1917 |
if (store != NULL && store->is_Store()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1918 |
value = store->in(MemNode::ValueIn); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1919 |
} else if (ptn->edge_count() > 0) { // Are there oop stores? |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1920 |
// Check for a store which follows allocation without branches. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1921 |
// For example, a volatile field store is not collected |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1922 |
// by Initialize node. TODO: it would be nice to use idom() here. |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1923 |
// |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1924 |
// Search all references to the same field which use different |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1925 |
// AddP nodes, for example, in the next case: |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1926 |
// |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1927 |
// Point p[] = new Point[1]; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1928 |
// if ( x ) { p[0] = new Point(); p[0].x = x; } |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1929 |
// if ( p[0] != null ) { y = p[0].x; } // has CastPP |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1930 |
// |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1931 |
for (uint next = ei; (next < ae_cnt) && (value == NULL); next++) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1932 |
uint fpi = pta->edge_target(next); // Field (AddP) |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1933 |
PointsToNode *ptf = ptnode_adr(fpi); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1934 |
if (ptf->offset() == offset) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1935 |
Node* nf = ptf->_node; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1936 |
for (DUIterator_Fast imax, i = nf->fast_outs(imax); i < imax; i++) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1937 |
store = nf->fast_out(i); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1938 |
if (store->is_Store() && store->in(0) != NULL) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1939 |
Node* ctrl = store->in(0); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1940 |
while(!(ctrl == ini || ctrl == alloc || ctrl == NULL || |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1941 |
ctrl == C->root() || ctrl == C->top() || ctrl->is_Region() || |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1942 |
ctrl->is_IfTrue() || ctrl->is_IfFalse())) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1943 |
ctrl = ctrl->in(0); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1944 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1945 |
if (ctrl == ini || ctrl == alloc) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1946 |
value = store->in(MemNode::ValueIn); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1947 |
break; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1948 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1949 |
} |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1950 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1951 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1952 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1953 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1954 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1955 |
if (value == NULL || value != ptnode_adr(value->_idx)->_node) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1956 |
// A field's initializing value was not recorded. Add NULL. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1957 |
uint null_idx = UseCompressedOops ? _noop_null : _oop_null; |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1958 |
add_edge_from_fields(alloc->_idx, null_idx, offset); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1959 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1960 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1961 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1962 |
} |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1963 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1964 |
|
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1965 |
// Adjust escape state after Connection Graph is built. |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1966 |
void ConnectionGraph::adjust_escape_state(Node* n) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1967 |
PointsToNode* ptn = ptnode_adr(n->_idx); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1968 |
assert(n->is_AddP(), "Should be called for AddP nodes only"); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1969 |
// Search for objects which are not scalar replaceable |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1970 |
// and mark them to propagate the state to referenced objects. |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1971 |
// |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1972 |
|
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1973 |
int offset = ptn->offset(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1974 |
Node* base = get_addp_base(n); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1975 |
VectorSet* ptset = PointsTo(base); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1976 |
int ptset_size = ptset->Size(); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1977 |
|
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1978 |
// An object is not scalar replaceable if the field which may point |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1979 |
// to it has unknown offset (unknown element of an array of objects). |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1980 |
// |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1981 |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1982 |
if (offset == Type::OffsetBot) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1983 |
uint e_cnt = ptn->edge_count(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1984 |
for (uint ei = 0; ei < e_cnt; ei++) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1985 |
uint npi = ptn->edge_target(ei); |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
1986 |
ptnode_adr(npi)->set_scalar_replaceable(false); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1987 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1988 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1989 |
|
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1990 |
// Currently an object is not scalar replaceable if a LoadStore node |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1991 |
// access its field since the field value is unknown after it. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1992 |
// |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1993 |
bool has_LoadStore = false; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1994 |
for (DUIterator_Fast imax, i = n->fast_outs(imax); i < imax; i++) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1995 |
Node *use = n->fast_out(i); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1996 |
if (use->is_LoadStore()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1997 |
has_LoadStore = true; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1998 |
break; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
1999 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2000 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2001 |
// An object is not scalar replaceable if the address points |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2002 |
// to unknown field (unknown element for arrays, offset is OffsetBot). |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2003 |
// |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2004 |
// Or the address may point to more then one object. This may produce |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2005 |
// the false positive result (set not scalar replaceable) |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2006 |
// since the flow-insensitive escape analysis can't separate |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2007 |
// the case when stores overwrite the field's value from the case |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2008 |
// when stores happened on different control branches. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2009 |
// |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2010 |
// Note: it will disable scalar replacement in some cases: |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2011 |
// |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2012 |
// Point p[] = new Point[1]; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2013 |
// p[0] = new Point(); // Will be not scalar replaced |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2014 |
// |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2015 |
// but it will save us from incorrect optimizations in next cases: |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2016 |
// |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2017 |
// Point p[] = new Point[1]; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2018 |
// if ( x ) p[0] = new Point(); // Will be not scalar replaced |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2019 |
// |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2020 |
if (ptset_size > 1 || ptset_size != 0 && |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2021 |
(has_LoadStore || offset == Type::OffsetBot)) { |
8319 | 2022 |
for( VectorSetI j(ptset); j.test(); ++j ) { |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2023 |
ptnode_adr(j.elem)->set_scalar_replaceable(false); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2024 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2025 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2026 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2027 |
|
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2028 |
// Propagate escape states to referenced nodes. |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2029 |
bool ConnectionGraph::propagate_escape_state(GrowableArray<int>* cg_worklist, |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2030 |
GrowableArray<uint>* worklist, |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2031 |
PointsToNode::EscapeState esc_state) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2032 |
bool has_java_obj = false; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2033 |
|
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2034 |
// push all nodes with the same escape state on the worklist |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2035 |
uint cg_length = cg_worklist->length(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2036 |
for (uint next = 0; next < cg_length; ++next) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2037 |
int nk = cg_worklist->at(next); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2038 |
if (ptnode_adr(nk)->escape_state() == esc_state) |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2039 |
worklist->push(nk); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2040 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2041 |
// mark all reachable nodes |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2042 |
while (worklist->length() > 0) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2043 |
PointsToNode* ptn = ptnode_adr(worklist->pop()); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2044 |
if (ptn->node_type() == PointsToNode::JavaObject) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2045 |
has_java_obj = true; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2046 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2047 |
uint e_cnt = ptn->edge_count(); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2048 |
for (uint ei = 0; ei < e_cnt; ei++) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2049 |
uint npi = ptn->edge_target(ei); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2050 |
PointsToNode *np = ptnode_adr(npi); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2051 |
if (np->escape_state() < esc_state) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2052 |
set_escape_state(npi, esc_state); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2053 |
worklist->push(npi); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2054 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2055 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2056 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2057 |
// Has not escaping java objects |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2058 |
return has_java_obj && (esc_state < PointsToNode::GlobalEscape); |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2059 |
} |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2060 |
|
11189 | 2061 |
// Optimize objects compare. |
2062 |
Node* ConnectionGraph::optimize_ptr_compare(Node* n) { |
|
2063 |
assert(OptimizePtrCompare, "sanity"); |
|
2064 |
// Clone returned Set since PointsTo() returns pointer |
|
2065 |
// to the same structure ConnectionGraph.pt_ptset. |
|
2066 |
VectorSet ptset1 = *PointsTo(n->in(1)); |
|
2067 |
VectorSet ptset2 = *PointsTo(n->in(2)); |
|
2068 |
||
2069 |
// Check simple cases first. |
|
2070 |
if (ptset1.Size() == 1) { |
|
2071 |
uint pt1 = ptset1.getelem(); |
|
2072 |
PointsToNode* ptn1 = ptnode_adr(pt1); |
|
2073 |
if (ptn1->escape_state() == PointsToNode::NoEscape) { |
|
2074 |
if (ptset2.Size() == 1 && ptset2.getelem() == pt1) { |
|
2075 |
// Comparing the same not escaping object. |
|
2076 |
return _pcmp_eq; |
|
2077 |
} |
|
2078 |
Node* obj = ptn1->_node; |
|
2079 |
// Comparing not escaping allocation. |
|
2080 |
if ((obj->is_Allocate() || obj->is_CallStaticJava()) && |
|
2081 |
!ptset2.test(pt1)) { |
|
2082 |
return _pcmp_neq; // This includes nullness check. |
|
2083 |
} |
|
2084 |
} |
|
2085 |
} else if (ptset2.Size() == 1) { |
|
2086 |
uint pt2 = ptset2.getelem(); |
|
2087 |
PointsToNode* ptn2 = ptnode_adr(pt2); |
|
2088 |
if (ptn2->escape_state() == PointsToNode::NoEscape) { |
|
2089 |
Node* obj = ptn2->_node; |
|
2090 |
// Comparing not escaping allocation. |
|
2091 |
if ((obj->is_Allocate() || obj->is_CallStaticJava()) && |
|
2092 |
!ptset1.test(pt2)) { |
|
2093 |
return _pcmp_neq; // This includes nullness check. |
|
2094 |
} |
|
2095 |
} |
|
2096 |
} |
|
2097 |
||
2098 |
if (!ptset1.disjoint(ptset2)) { |
|
2099 |
return NULL; // Sets are not disjoint |
|
2100 |
} |
|
2101 |
||
2102 |
// Sets are disjoint. |
|
2103 |
bool set1_has_unknown_ptr = ptset1.test(_phantom_object) != 0; |
|
2104 |
bool set2_has_unknown_ptr = ptset2.test(_phantom_object) != 0; |
|
2105 |
bool set1_has_null_ptr = (ptset1.test(_oop_null) | ptset1.test(_noop_null)) != 0; |
|
2106 |
bool set2_has_null_ptr = (ptset2.test(_oop_null) | ptset2.test(_noop_null)) != 0; |
|
2107 |
||
2108 |
if (set1_has_unknown_ptr && set2_has_null_ptr || |
|
2109 |
set2_has_unknown_ptr && set1_has_null_ptr) { |
|
2110 |
// Check nullness of unknown object. |
|
2111 |
return NULL; |
|
2112 |
} |
|
2113 |
||
2114 |
// Disjointness by itself is not sufficient since |
|
2115 |
// alias analysis is not complete for escaped objects. |
|
2116 |
// Disjoint sets are definitely unrelated only when |
|
2117 |
// at least one set has only not escaping objects. |
|
2118 |
if (!set1_has_unknown_ptr && !set1_has_null_ptr) { |
|
2119 |
bool has_only_non_escaping_alloc = true; |
|
2120 |
for (VectorSetI i(&ptset1); i.test(); ++i) { |
|
2121 |
uint pt = i.elem; |
|
2122 |
PointsToNode* ptn = ptnode_adr(pt); |
|
2123 |
Node* obj = ptn->_node; |
|
2124 |
if (ptn->escape_state() != PointsToNode::NoEscape || |
|
2125 |
!(obj->is_Allocate() || obj->is_CallStaticJava())) { |
|
2126 |
has_only_non_escaping_alloc = false; |
|
2127 |
break; |
|
2128 |
} |
|
2129 |
} |
|
2130 |
if (has_only_non_escaping_alloc) { |
|
2131 |
return _pcmp_neq; |
|
2132 |
} |
|
2133 |
} |
|
2134 |
if (!set2_has_unknown_ptr && !set2_has_null_ptr) { |
|
2135 |
bool has_only_non_escaping_alloc = true; |
|
2136 |
for (VectorSetI i(&ptset2); i.test(); ++i) { |
|
2137 |
uint pt = i.elem; |
|
2138 |
PointsToNode* ptn = ptnode_adr(pt); |
|
2139 |
Node* obj = ptn->_node; |
|
2140 |
if (ptn->escape_state() != PointsToNode::NoEscape || |
|
2141 |
!(obj->is_Allocate() || obj->is_CallStaticJava())) { |
|
2142 |
has_only_non_escaping_alloc = false; |
|
2143 |
break; |
|
2144 |
} |
|
2145 |
} |
|
2146 |
if (has_only_non_escaping_alloc) { |
|
2147 |
return _pcmp_neq; |
|
2148 |
} |
|
2149 |
} |
|
2150 |
return NULL; |
|
2151 |
} |
|
2152 |
||
1 | 2153 |
void ConnectionGraph::process_call_arguments(CallNode *call, PhaseTransform *phase) { |
2154 |
||
2155 |
switch (call->Opcode()) { |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2156 |
#ifdef ASSERT |
1 | 2157 |
case Op_Allocate: |
2158 |
case Op_AllocateArray: |
|
2159 |
case Op_Lock: |
|
2160 |
case Op_Unlock: |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2161 |
assert(false, "should be done already"); |
1 | 2162 |
break; |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2163 |
#endif |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2164 |
case Op_CallLeaf: |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2165 |
case Op_CallLeafNoFP: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2166 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2167 |
// Stub calls, objects do not escape but they are not scale replaceable. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2168 |
// Adjust escape state for outgoing arguments. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2169 |
const TypeTuple * d = call->tf()->domain(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2170 |
for (uint i = TypeFunc::Parms; i < d->cnt(); i++) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2171 |
const Type* at = d->field_at(i); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2172 |
Node *arg = call->in(i)->uncast(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2173 |
const Type *aat = phase->type(arg); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2174 |
if (!arg->is_top() && at->isa_ptr() && aat->isa_ptr() && |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2175 |
ptnode_adr(arg->_idx)->escape_state() < PointsToNode::ArgEscape) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2176 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2177 |
assert(aat == Type::TOP || aat == TypePtr::NULL_PTR || |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2178 |
aat->isa_ptr() != NULL, "expecting an Ptr"); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2179 |
#ifdef ASSERT |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2180 |
if (!(call->Opcode() == Op_CallLeafNoFP && |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2181 |
call->as_CallLeaf()->_name != NULL && |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2182 |
(strstr(call->as_CallLeaf()->_name, "arraycopy") != 0) || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2183 |
call->as_CallLeaf()->_name != NULL && |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2184 |
(strcmp(call->as_CallLeaf()->_name, "g1_wb_pre") == 0 || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2185 |
strcmp(call->as_CallLeaf()->_name, "g1_wb_post") == 0 )) |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2186 |
) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2187 |
call->dump(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2188 |
assert(false, "EA: unexpected CallLeaf"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2189 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2190 |
#endif |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2191 |
set_escape_state(arg->_idx, PointsToNode::ArgEscape); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2192 |
if (arg->is_AddP()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2193 |
// |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2194 |
// The inline_native_clone() case when the arraycopy stub is called |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2195 |
// after the allocation before Initialize and CheckCastPP nodes. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2196 |
// |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2197 |
// Set AddP's base (Allocate) as not scalar replaceable since |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2198 |
// pointer to the base (with offset) is passed as argument. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2199 |
// |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2200 |
arg = get_addp_base(arg); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2201 |
} |
8319 | 2202 |
for( VectorSetI j(PointsTo(arg)); j.test(); ++j ) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2203 |
uint pt = j.elem; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2204 |
set_escape_state(pt, PointsToNode::ArgEscape); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2205 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2206 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2207 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2208 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2209 |
} |
1 | 2210 |
|
2211 |
case Op_CallStaticJava: |
|
2212 |
// For a static call, we know exactly what method is being called. |
|
2213 |
// Use bytecode estimator to record the call's escape affects |
|
2214 |
{ |
|
2215 |
ciMethod *meth = call->as_CallJava()->method(); |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2216 |
BCEscapeAnalyzer *call_analyzer = (meth !=NULL) ? meth->get_bcea() : NULL; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2217 |
// fall-through if not a Java method or no analyzer information |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2218 |
if (call_analyzer != NULL) { |
1 | 2219 |
const TypeTuple * d = call->tf()->domain(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2220 |
bool copy_dependencies = false; |
1 | 2221 |
for (uint i = TypeFunc::Parms; i < d->cnt(); i++) { |
2222 |
const Type* at = d->field_at(i); |
|
2223 |
int k = i - TypeFunc::Parms; |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2224 |
Node *arg = call->in(i)->uncast(); |
1 | 2225 |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2226 |
if (at->isa_oopptr() != NULL && |
4565
cbb3fed38514
6913075: EA identifies escape state incorrectly after 6895383 fix
kvn
parents:
4471
diff
changeset
|
2227 |
ptnode_adr(arg->_idx)->escape_state() < PointsToNode::GlobalEscape) { |
1 | 2228 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2229 |
bool global_escapes = false; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2230 |
bool fields_escapes = false; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2231 |
if (!call_analyzer->is_arg_stack(k)) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2232 |
// The argument global escapes, mark everything it could point to |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2233 |
set_escape_state(arg->_idx, PointsToNode::GlobalEscape); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2234 |
global_escapes = true; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2235 |
} else { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2236 |
if (!call_analyzer->is_arg_local(k)) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2237 |
// The argument itself doesn't escape, but any fields might |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2238 |
fields_escapes = true; |
1 | 2239 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2240 |
set_escape_state(arg->_idx, PointsToNode::ArgEscape); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2241 |
copy_dependencies = true; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2242 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2243 |
|
8319 | 2244 |
for( VectorSetI j(PointsTo(arg)); j.test(); ++j ) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2245 |
uint pt = j.elem; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2246 |
if (global_escapes) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2247 |
//The argument global escapes, mark everything it could point to |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2248 |
set_escape_state(pt, PointsToNode::GlobalEscape); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2249 |
} else { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2250 |
if (fields_escapes) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2251 |
// The argument itself doesn't escape, but any fields might |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2252 |
add_edge_from_fields(pt, _phantom_object, Type::OffsetBot); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2253 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2254 |
set_escape_state(pt, PointsToNode::ArgEscape); |
1 | 2255 |
} |
2256 |
} |
|
2257 |
} |
|
2258 |
} |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2259 |
if (copy_dependencies) |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2260 |
call_analyzer->copy_dependencies(_compile->dependencies()); |
1 | 2261 |
break; |
2262 |
} |
|
2263 |
} |
|
2264 |
||
2265 |
default: |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2266 |
// Fall-through here if not a Java method or no analyzer information |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2267 |
// or some other type of call, assume the worst case: all arguments |
1 | 2268 |
// globally escape. |
2269 |
{ |
|
2270 |
// adjust escape state for outgoing arguments |
|
2271 |
const TypeTuple * d = call->tf()->domain(); |
|
2272 |
for (uint i = TypeFunc::Parms; i < d->cnt(); i++) { |
|
2273 |
const Type* at = d->field_at(i); |
|
2274 |
if (at->isa_oopptr() != NULL) { |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2275 |
Node *arg = call->in(i)->uncast(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2276 |
set_escape_state(arg->_idx, PointsToNode::GlobalEscape); |
8319 | 2277 |
for( VectorSetI j(PointsTo(arg)); j.test(); ++j ) { |
1 | 2278 |
uint pt = j.elem; |
2279 |
set_escape_state(pt, PointsToNode::GlobalEscape); |
|
2280 |
} |
|
2281 |
} |
|
2282 |
} |
|
2283 |
} |
|
2284 |
} |
|
2285 |
} |
|
2286 |
void ConnectionGraph::process_call_result(ProjNode *resproj, PhaseTransform *phase) { |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2287 |
CallNode *call = resproj->in(0)->as_Call(); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2288 |
uint call_idx = call->_idx; |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2289 |
uint resproj_idx = resproj->_idx; |
1 | 2290 |
|
2291 |
switch (call->Opcode()) { |
|
2292 |
case Op_Allocate: |
|
2293 |
{ |
|
2294 |
Node *k = call->in(AllocateNode::KlassNode); |
|
5534
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2295 |
const TypeKlassPtr *kt = k->bottom_type()->isa_klassptr(); |
1 | 2296 |
assert(kt != NULL, "TypeKlassPtr required."); |
2297 |
ciKlass* cik = kt->klass(); |
|
2298 |
||
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2299 |
PointsToNode::EscapeState es; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2300 |
uint edge_to; |
5534
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2301 |
if (cik->is_subclass_of(_compile->env()->Thread_klass()) || |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2302 |
!cik->is_instance_klass() || // StressReflectiveCode |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2303 |
cik->as_instance_klass()->has_finalizer()) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2304 |
es = PointsToNode::GlobalEscape; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2305 |
edge_to = _phantom_object; // Could not be worse |
1 | 2306 |
} else { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2307 |
es = PointsToNode::NoEscape; |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2308 |
edge_to = call_idx; |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2309 |
assert(ptnode_adr(call_idx)->scalar_replaceable(), "sanity"); |
1 | 2310 |
} |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2311 |
set_escape_state(call_idx, es); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2312 |
add_pointsto_edge(resproj_idx, edge_to); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2313 |
_processed.set(resproj_idx); |
1 | 2314 |
break; |
2315 |
} |
|
2316 |
||
2317 |
case Op_AllocateArray: |
|
2318 |
{ |
|
5534
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2319 |
|
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2320 |
Node *k = call->in(AllocateNode::KlassNode); |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2321 |
const TypeKlassPtr *kt = k->bottom_type()->isa_klassptr(); |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2322 |
assert(kt != NULL, "TypeKlassPtr required."); |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2323 |
ciKlass* cik = kt->klass(); |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2324 |
|
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2325 |
PointsToNode::EscapeState es; |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2326 |
uint edge_to; |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2327 |
if (!cik->is_array_klass()) { // StressReflectiveCode |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2328 |
es = PointsToNode::GlobalEscape; |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2329 |
edge_to = _phantom_object; |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2330 |
} else { |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2331 |
es = PointsToNode::NoEscape; |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2332 |
edge_to = call_idx; |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2333 |
assert(ptnode_adr(call_idx)->scalar_replaceable(), "sanity"); |
5534
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2334 |
int length = call->in(AllocateNode::ALength)->find_int_con(-1); |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2335 |
if (length < 0 || length > EliminateAllocationArraySizeLimit) { |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2336 |
// Not scalar replaceable if the length is not constant or too big. |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2337 |
ptnode_adr(call_idx)->set_scalar_replaceable(false); |
5534
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2338 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2339 |
} |
5534
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2340 |
set_escape_state(call_idx, es); |
9bea9ee28dfc
6953267: assert in EA code with -XX:+StressReflectiveCode
kvn
parents:
4565
diff
changeset
|
2341 |
add_pointsto_edge(resproj_idx, edge_to); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2342 |
_processed.set(resproj_idx); |
1 | 2343 |
break; |
2344 |
} |
|
2345 |
||
2346 |
case Op_CallStaticJava: |
|
2347 |
// For a static call, we know exactly what method is being called. |
|
2348 |
// Use bytecode estimator to record whether the call's return value escapes |
|
2349 |
{ |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2350 |
bool done = true; |
1 | 2351 |
const TypeTuple *r = call->tf()->range(); |
2352 |
const Type* ret_type = NULL; |
|
2353 |
||
2354 |
if (r->cnt() > TypeFunc::Parms) |
|
2355 |
ret_type = r->field_at(TypeFunc::Parms); |
|
2356 |
||
2357 |
// Note: we use isa_ptr() instead of isa_oopptr() here because the |
|
2358 |
// _multianewarray functions return a TypeRawPtr. |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2359 |
if (ret_type == NULL || ret_type->isa_ptr() == NULL) { |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2360 |
_processed.set(resproj_idx); |
1 | 2361 |
break; // doesn't return a pointer type |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2362 |
} |
1 | 2363 |
ciMethod *meth = call->as_CallJava()->method(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2364 |
const TypeTuple * d = call->tf()->domain(); |
1 | 2365 |
if (meth == NULL) { |
2366 |
// not a Java method, assume global escape |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2367 |
set_escape_state(call_idx, PointsToNode::GlobalEscape); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2368 |
add_pointsto_edge(resproj_idx, _phantom_object); |
1 | 2369 |
} else { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2370 |
BCEscapeAnalyzer *call_analyzer = meth->get_bcea(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2371 |
bool copy_dependencies = false; |
1 | 2372 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2373 |
if (call_analyzer->is_return_allocated()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2374 |
// Returns a newly allocated unescaped object, simply |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2375 |
// update dependency information. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2376 |
// Mark it as NoEscape so that objects referenced by |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2377 |
// it's fields will be marked as NoEscape at least. |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2378 |
set_escape_state(call_idx, PointsToNode::NoEscape); |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2379 |
ptnode_adr(call_idx)->set_scalar_replaceable(false); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2380 |
add_pointsto_edge(resproj_idx, call_idx); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2381 |
copy_dependencies = true; |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2382 |
} else if (call_analyzer->is_return_local()) { |
1 | 2383 |
// determine whether any arguments are returned |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2384 |
set_escape_state(call_idx, PointsToNode::ArgEscape); |
1069
ef51f81ebe0f
6732732: CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
kvn
parents:
1068
diff
changeset
|
2385 |
bool ret_arg = false; |
1 | 2386 |
for (uint i = TypeFunc::Parms; i < d->cnt(); i++) { |
2387 |
const Type* at = d->field_at(i); |
|
2388 |
||
2389 |
if (at->isa_oopptr() != NULL) { |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2390 |
Node *arg = call->in(i)->uncast(); |
1 | 2391 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2392 |
if (call_analyzer->is_arg_returned(i - TypeFunc::Parms)) { |
1069
ef51f81ebe0f
6732732: CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
kvn
parents:
1068
diff
changeset
|
2393 |
ret_arg = true; |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2394 |
PointsToNode *arg_esp = ptnode_adr(arg->_idx); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2395 |
if (arg_esp->node_type() == PointsToNode::UnknownType) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2396 |
done = false; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2397 |
else if (arg_esp->node_type() == PointsToNode::JavaObject) |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2398 |
add_pointsto_edge(resproj_idx, arg->_idx); |
1 | 2399 |
else |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2400 |
add_deferred_edge(resproj_idx, arg->_idx); |
1 | 2401 |
} |
2402 |
} |
|
2403 |
} |
|
1069
ef51f81ebe0f
6732732: CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
kvn
parents:
1068
diff
changeset
|
2404 |
if (done && !ret_arg) { |
ef51f81ebe0f
6732732: CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
kvn
parents:
1068
diff
changeset
|
2405 |
// Returns unknown object. |
ef51f81ebe0f
6732732: CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
kvn
parents:
1068
diff
changeset
|
2406 |
set_escape_state(call_idx, PointsToNode::GlobalEscape); |
ef51f81ebe0f
6732732: CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
kvn
parents:
1068
diff
changeset
|
2407 |
add_pointsto_edge(resproj_idx, _phantom_object); |
ef51f81ebe0f
6732732: CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
kvn
parents:
1068
diff
changeset
|
2408 |
} |
10982
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2409 |
if (done) { |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2410 |
copy_dependencies = true; |
85bcf8ef9cc8
7059047: EA: can't find initializing store with several CheckCastPP
kvn
parents:
10970
diff
changeset
|
2411 |
} |
1 | 2412 |
} else { |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2413 |
set_escape_state(call_idx, PointsToNode::GlobalEscape); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2414 |
add_pointsto_edge(resproj_idx, _phantom_object); |
1 | 2415 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2416 |
if (copy_dependencies) |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2417 |
call_analyzer->copy_dependencies(_compile->dependencies()); |
1 | 2418 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2419 |
if (done) |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2420 |
_processed.set(resproj_idx); |
1 | 2421 |
break; |
2422 |
} |
|
2423 |
||
2424 |
default: |
|
2425 |
// Some other type of call, assume the worst case that the |
|
2426 |
// returned value, if any, globally escapes. |
|
2427 |
{ |
|
2428 |
const TypeTuple *r = call->tf()->range(); |
|
2429 |
if (r->cnt() > TypeFunc::Parms) { |
|
2430 |
const Type* ret_type = r->field_at(TypeFunc::Parms); |
|
2431 |
||
2432 |
// Note: we use isa_ptr() instead of isa_oopptr() here because the |
|
2433 |
// _multianewarray functions return a TypeRawPtr. |
|
2434 |
if (ret_type->isa_ptr() != NULL) { |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2435 |
set_escape_state(call_idx, PointsToNode::GlobalEscape); |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2436 |
add_pointsto_edge(resproj_idx, _phantom_object); |
1 | 2437 |
} |
2438 |
} |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2439 |
_processed.set(resproj_idx); |
1 | 2440 |
} |
2441 |
} |
|
2442 |
} |
|
2443 |
||
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2444 |
// Populate Connection Graph with Ideal nodes and create simple |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2445 |
// connection graph edges (do not need to check the node_type of inputs |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2446 |
// or to call PointsTo() to walk the connection graph). |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2447 |
void ConnectionGraph::record_for_escape_analysis(Node *n, PhaseTransform *phase) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2448 |
if (_processed.test(n->_idx)) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2449 |
return; // No need to redefine node's state. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2450 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2451 |
if (n->is_Call()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2452 |
// Arguments to allocation and locking don't escape. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2453 |
if (n->is_Allocate()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2454 |
add_node(n, PointsToNode::JavaObject, PointsToNode::UnknownEscape, true); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2455 |
record_for_optimizer(n); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2456 |
} else if (n->is_Lock() || n->is_Unlock()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2457 |
// Put Lock and Unlock nodes on IGVN worklist to process them during |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2458 |
// the first IGVN optimization when escape information is still available. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2459 |
record_for_optimizer(n); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2460 |
_processed.set(n->_idx); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2461 |
} else { |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2462 |
// Don't mark as processed since call's arguments have to be processed. |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2463 |
PointsToNode::NodeType nt = PointsToNode::UnknownType; |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2464 |
PointsToNode::EscapeState es = PointsToNode::UnknownEscape; |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2465 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2466 |
// Check if a call returns an object. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2467 |
const TypeTuple *r = n->as_Call()->tf()->range(); |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2468 |
if (r->cnt() > TypeFunc::Parms && |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2469 |
r->field_at(TypeFunc::Parms)->isa_ptr() && |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2470 |
n->as_Call()->proj_out(TypeFunc::Parms) != NULL) { |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2471 |
nt = PointsToNode::JavaObject; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2472 |
if (!n->is_CallStaticJava()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2473 |
// Since the called mathod is statically unknown assume |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2474 |
// the worst case that the returned value globally escapes. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2475 |
es = PointsToNode::GlobalEscape; |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2476 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2477 |
} |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2478 |
add_node(n, nt, es, false); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2479 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2480 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2481 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2482 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2483 |
// Using isa_ptr() instead of isa_oopptr() for LoadP and Phi because |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2484 |
// ThreadLocal has RawPrt type. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2485 |
switch (n->Opcode()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2486 |
case Op_AddP: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2487 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2488 |
add_node(n, PointsToNode::Field, PointsToNode::UnknownEscape, false); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2489 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2490 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2491 |
case Op_CastX2P: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2492 |
{ // "Unsafe" memory access. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2493 |
add_node(n, PointsToNode::JavaObject, PointsToNode::GlobalEscape, true); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2494 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2495 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2496 |
case Op_CastPP: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2497 |
case Op_CheckCastPP: |
371
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2498 |
case Op_EncodeP: |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2499 |
case Op_DecodeN: |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2500 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2501 |
add_node(n, PointsToNode::LocalVar, PointsToNode::UnknownEscape, false); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2502 |
int ti = n->in(1)->_idx; |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2503 |
PointsToNode::NodeType nt = ptnode_adr(ti)->node_type(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2504 |
if (nt == PointsToNode::UnknownType) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2505 |
_delayed_worklist.push(n); // Process it later. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2506 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2507 |
} else if (nt == PointsToNode::JavaObject) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2508 |
add_pointsto_edge(n->_idx, ti); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2509 |
} else { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2510 |
add_deferred_edge(n->_idx, ti); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2511 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2512 |
_processed.set(n->_idx); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2513 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2514 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2515 |
case Op_ConP: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2516 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2517 |
// assume all pointer constants globally escape except for null |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2518 |
PointsToNode::EscapeState es; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2519 |
if (phase->type(n) == TypePtr::NULL_PTR) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2520 |
es = PointsToNode::NoEscape; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2521 |
else |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2522 |
es = PointsToNode::GlobalEscape; |
1 | 2523 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2524 |
add_node(n, PointsToNode::JavaObject, es, true); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2525 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2526 |
} |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2527 |
case Op_ConN: |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2528 |
{ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2529 |
// assume all narrow oop constants globally escape except for null |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2530 |
PointsToNode::EscapeState es; |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2531 |
if (phase->type(n) == TypeNarrowOop::NULL_PTR) |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2532 |
es = PointsToNode::NoEscape; |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2533 |
else |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2534 |
es = PointsToNode::GlobalEscape; |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2535 |
|
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2536 |
add_node(n, PointsToNode::JavaObject, es, true); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2537 |
break; |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2538 |
} |
371
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2539 |
case Op_CreateEx: |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2540 |
{ |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2541 |
// assume that all exception objects globally escape |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2542 |
add_node(n, PointsToNode::JavaObject, PointsToNode::GlobalEscape, true); |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2543 |
break; |
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2544 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2545 |
case Op_LoadKlass: |
590
2954744d7bba
6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents:
589
diff
changeset
|
2546 |
case Op_LoadNKlass: |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2547 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2548 |
add_node(n, PointsToNode::JavaObject, PointsToNode::GlobalEscape, true); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2549 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2550 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2551 |
case Op_LoadP: |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2552 |
case Op_LoadN: |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2553 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2554 |
const Type *t = phase->type(n); |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
2555 |
if (t->make_ptr() == NULL) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2556 |
_processed.set(n->_idx); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2557 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2558 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2559 |
add_node(n, PointsToNode::LocalVar, PointsToNode::UnknownEscape, false); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2560 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2561 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2562 |
case Op_Parm: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2563 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2564 |
_processed.set(n->_idx); // No need to redefine it state. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2565 |
uint con = n->as_Proj()->_con; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2566 |
if (con < TypeFunc::Parms) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2567 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2568 |
const Type *t = n->in(0)->as_Start()->_domain->field_at(con); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2569 |
if (t->isa_ptr() == NULL) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2570 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2571 |
// We have to assume all input parameters globally escape |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2572 |
// (Note: passing 'false' since _processed is already set). |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2573 |
add_node(n, PointsToNode::JavaObject, PointsToNode::GlobalEscape, false); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2574 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2575 |
} |
11189 | 2576 |
case Op_PartialSubtypeCheck: |
2577 |
{ // Produces Null or notNull and is used in CmpP. |
|
2578 |
add_node(n, PointsToNode::JavaObject, PointsToNode::ArgEscape, true); |
|
2579 |
break; |
|
2580 |
} |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2581 |
case Op_Phi: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2582 |
{ |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
2583 |
const Type *t = n->as_Phi()->type(); |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
2584 |
if (t->make_ptr() == NULL) { |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
2585 |
// nothing to do if not an oop or narrow oop |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2586 |
_processed.set(n->_idx); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2587 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2588 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2589 |
add_node(n, PointsToNode::LocalVar, PointsToNode::UnknownEscape, false); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2590 |
uint i; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2591 |
for (i = 1; i < n->req() ; i++) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2592 |
Node* in = n->in(i); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2593 |
if (in == NULL) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2594 |
continue; // ignore NULL |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2595 |
in = in->uncast(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2596 |
if (in->is_top() || in == n) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2597 |
continue; // ignore top or inputs which go back this node |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2598 |
int ti = in->_idx; |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2599 |
PointsToNode::NodeType nt = ptnode_adr(ti)->node_type(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2600 |
if (nt == PointsToNode::UnknownType) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2601 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2602 |
} else if (nt == PointsToNode::JavaObject) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2603 |
add_pointsto_edge(n->_idx, ti); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2604 |
} else { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2605 |
add_deferred_edge(n->_idx, ti); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2606 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2607 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2608 |
if (i >= n->req()) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2609 |
_processed.set(n->_idx); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2610 |
else |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2611 |
_delayed_worklist.push(n); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2612 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2613 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2614 |
case Op_Proj: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2615 |
{ |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2616 |
// we are only interested in the oop result projection from a call |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2617 |
if (n->as_Proj()->_con == TypeFunc::Parms && n->in(0)->is_Call() ) { |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2618 |
const TypeTuple *r = n->in(0)->as_Call()->tf()->range(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2619 |
assert(r->cnt() > TypeFunc::Parms, "sanity"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2620 |
if (r->field_at(TypeFunc::Parms)->isa_ptr() != NULL) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2621 |
add_node(n, PointsToNode::LocalVar, PointsToNode::UnknownEscape, false); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2622 |
int ti = n->in(0)->_idx; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2623 |
// The call may not be registered yet (since not all its inputs are registered) |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2624 |
// if this is the projection from backbranch edge of Phi. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2625 |
if (ptnode_adr(ti)->node_type() != PointsToNode::UnknownType) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2626 |
process_call_result(n->as_Proj(), phase); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2627 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2628 |
if (!_processed.test(n->_idx)) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2629 |
// The call's result may need to be processed later if the call |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2630 |
// returns it's argument and the argument is not processed yet. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2631 |
_delayed_worklist.push(n); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2632 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2633 |
break; |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2634 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2635 |
} |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2636 |
_processed.set(n->_idx); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2637 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2638 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2639 |
case Op_Return: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2640 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2641 |
if( n->req() > TypeFunc::Parms && |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2642 |
phase->type(n->in(TypeFunc::Parms))->isa_oopptr() ) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2643 |
// Treat Return value as LocalVar with GlobalEscape escape state. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2644 |
add_node(n, PointsToNode::LocalVar, PointsToNode::GlobalEscape, false); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2645 |
int ti = n->in(TypeFunc::Parms)->_idx; |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2646 |
PointsToNode::NodeType nt = ptnode_adr(ti)->node_type(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2647 |
if (nt == PointsToNode::UnknownType) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2648 |
_delayed_worklist.push(n); // Process it later. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2649 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2650 |
} else if (nt == PointsToNode::JavaObject) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2651 |
add_pointsto_edge(n->_idx, ti); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2652 |
} else { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2653 |
add_deferred_edge(n->_idx, ti); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2654 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2655 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2656 |
_processed.set(n->_idx); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2657 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2658 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2659 |
case Op_StoreP: |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2660 |
case Op_StoreN: |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2661 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2662 |
const Type *adr_type = phase->type(n->in(MemNode::Address)); |
767
64fb1fd7186d
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
594
diff
changeset
|
2663 |
adr_type = adr_type->make_ptr(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2664 |
if (adr_type->isa_oopptr()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2665 |
add_node(n, PointsToNode::UnknownType, PointsToNode::UnknownEscape, false); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2666 |
} else { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2667 |
Node* adr = n->in(MemNode::Address); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2668 |
if (adr->is_AddP() && phase->type(adr) == TypeRawPtr::NOTNULL && |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2669 |
adr->in(AddPNode::Address)->is_Proj() && |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2670 |
adr->in(AddPNode::Address)->in(0)->is_Allocate()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2671 |
add_node(n, PointsToNode::UnknownType, PointsToNode::UnknownEscape, false); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2672 |
// We are computing a raw address for a store captured |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2673 |
// by an Initialize compute an appropriate address type. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2674 |
int offs = (int)phase->find_intptr_t_con(adr->in(AddPNode::Offset), Type::OffsetBot); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2675 |
assert(offs != Type::OffsetBot, "offset must be a constant"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2676 |
} else { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2677 |
_processed.set(n->_idx); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2678 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2679 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2680 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2681 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2682 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2683 |
case Op_StorePConditional: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2684 |
case Op_CompareAndSwapP: |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2685 |
case Op_CompareAndSwapN: |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2686 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2687 |
const Type *adr_type = phase->type(n->in(MemNode::Address)); |
767
64fb1fd7186d
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
594
diff
changeset
|
2688 |
adr_type = adr_type->make_ptr(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2689 |
if (adr_type->isa_oopptr()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2690 |
add_node(n, PointsToNode::UnknownType, PointsToNode::UnknownEscape, false); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2691 |
} else { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2692 |
_processed.set(n->_idx); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2693 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2694 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2695 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2696 |
} |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2697 |
case Op_AryEq: |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2698 |
case Op_StrComp: |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2699 |
case Op_StrEquals: |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2700 |
case Op_StrIndexOf: |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2701 |
{ |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2702 |
// char[] arrays passed to string intrinsics are not scalar replaceable. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2703 |
add_node(n, PointsToNode::UnknownType, PointsToNode::UnknownEscape, false); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2704 |
break; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2705 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2706 |
case Op_ThreadLocal: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2707 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2708 |
add_node(n, PointsToNode::JavaObject, PointsToNode::ArgEscape, true); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2709 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2710 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2711 |
default: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2712 |
; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2713 |
// nothing to do |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2714 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2715 |
return; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2716 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2717 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2718 |
void ConnectionGraph::build_connection_graph(Node *n, PhaseTransform *phase) { |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2719 |
uint n_idx = n->_idx; |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2720 |
assert(ptnode_adr(n_idx)->_node != NULL, "node should be registered"); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2721 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2722 |
// Don't set processed bit for AddP, LoadP, StoreP since |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2723 |
// they may need more then one pass to process. |
7122 | 2724 |
// Also don't mark as processed Call nodes since their |
2725 |
// arguments may need more then one pass to process. |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2726 |
if (_processed.test(n_idx)) |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2727 |
return; // No need to redefine node's state. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2728 |
|
1 | 2729 |
if (n->is_Call()) { |
2730 |
CallNode *call = n->as_Call(); |
|
2731 |
process_call_arguments(call, phase); |
|
2732 |
return; |
|
2733 |
} |
|
2734 |
||
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2735 |
switch (n->Opcode()) { |
1 | 2736 |
case Op_AddP: |
2737 |
{ |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2738 |
Node *base = get_addp_base(n); |
11189 | 2739 |
int offset = address_offset(n, phase); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2740 |
// Create a field edge to this node from everything base could point to. |
8319 | 2741 |
for( VectorSetI i(PointsTo(base)); i.test(); ++i ) { |
1 | 2742 |
uint pt = i.elem; |
11189 | 2743 |
add_field_edge(pt, n_idx, offset); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2744 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2745 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2746 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2747 |
case Op_CastX2P: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2748 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2749 |
assert(false, "Op_CastX2P"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2750 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2751 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2752 |
case Op_CastPP: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2753 |
case Op_CheckCastPP: |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2754 |
case Op_EncodeP: |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
349
diff
changeset
|
2755 |
case Op_DecodeN: |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2756 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2757 |
int ti = n->in(1)->_idx; |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2758 |
assert(ptnode_adr(ti)->node_type() != PointsToNode::UnknownType, "all nodes should be registered"); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2759 |
if (ptnode_adr(ti)->node_type() == PointsToNode::JavaObject) { |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2760 |
add_pointsto_edge(n_idx, ti); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2761 |
} else { |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2762 |
add_deferred_edge(n_idx, ti); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2763 |
} |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2764 |
_processed.set(n_idx); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2765 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2766 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2767 |
case Op_ConP: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2768 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2769 |
assert(false, "Op_ConP"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2770 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2771 |
} |
589 | 2772 |
case Op_ConN: |
2773 |
{ |
|
2774 |
assert(false, "Op_ConN"); |
|
2775 |
break; |
|
2776 |
} |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2777 |
case Op_CreateEx: |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2778 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2779 |
assert(false, "Op_CreateEx"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2780 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2781 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2782 |
case Op_LoadKlass: |
590
2954744d7bba
6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions
kvn
parents:
589
diff
changeset
|
2783 |
case Op_LoadNKlass: |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2784 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2785 |
assert(false, "Op_LoadKlass"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2786 |
break; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2787 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2788 |
case Op_LoadP: |
371
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2789 |
case Op_LoadN: |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2790 |
{ |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2791 |
const Type *t = phase->type(n); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2792 |
#ifdef ASSERT |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
2793 |
if (t->make_ptr() == NULL) |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2794 |
assert(false, "Op_LoadP"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2795 |
#endif |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2796 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2797 |
Node* adr = n->in(MemNode::Address)->uncast(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2798 |
Node* adr_base; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2799 |
if (adr->is_AddP()) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2800 |
adr_base = get_addp_base(adr); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2801 |
} else { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2802 |
adr_base = adr; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2803 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2804 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2805 |
// For everything "adr_base" could point to, create a deferred edge from |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2806 |
// this node to each field with the same offset. |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2807 |
int offset = address_offset(adr, phase); |
8319 | 2808 |
for( VectorSetI i(PointsTo(adr_base)); i.test(); ++i ) { |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2809 |
uint pt = i.elem; |
11189 | 2810 |
if (adr->is_AddP()) { |
2811 |
// Add field edge if it is missing. |
|
2812 |
add_field_edge(pt, adr->_idx, offset); |
|
2813 |
} |
|
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2814 |
add_deferred_edge_to_fields(n_idx, pt, offset); |
1 | 2815 |
} |
2816 |
break; |
|
2817 |
} |
|
2818 |
case Op_Parm: |
|
2819 |
{ |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2820 |
assert(false, "Op_Parm"); |
1 | 2821 |
break; |
2822 |
} |
|
11189 | 2823 |
case Op_PartialSubtypeCheck: |
2824 |
{ |
|
2825 |
assert(false, "Op_PartialSubtypeCheck"); |
|
2826 |
break; |
|
2827 |
} |
|
1 | 2828 |
case Op_Phi: |
2829 |
{ |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2830 |
#ifdef ASSERT |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
2831 |
const Type *t = n->as_Phi()->type(); |
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
2832 |
if (t->make_ptr() == NULL) |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2833 |
assert(false, "Op_Phi"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2834 |
#endif |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2835 |
for (uint i = 1; i < n->req() ; i++) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2836 |
Node* in = n->in(i); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2837 |
if (in == NULL) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2838 |
continue; // ignore NULL |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2839 |
in = in->uncast(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2840 |
if (in->is_top() || in == n) |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2841 |
continue; // ignore top or inputs which go back this node |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2842 |
int ti = in->_idx; |
1069
ef51f81ebe0f
6732732: CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
kvn
parents:
1068
diff
changeset
|
2843 |
PointsToNode::NodeType nt = ptnode_adr(ti)->node_type(); |
ef51f81ebe0f
6732732: CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
kvn
parents:
1068
diff
changeset
|
2844 |
assert(nt != PointsToNode::UnknownType, "all nodes should be known"); |
ef51f81ebe0f
6732732: CTW with EA: assert(n != 0L,"Bad immediate dominator info.")
kvn
parents:
1068
diff
changeset
|
2845 |
if (nt == PointsToNode::JavaObject) { |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2846 |
add_pointsto_edge(n_idx, ti); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2847 |
} else { |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2848 |
add_deferred_edge(n_idx, ti); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2849 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2850 |
} |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2851 |
_processed.set(n_idx); |
1 | 2852 |
break; |
2853 |
} |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2854 |
case Op_Proj: |
1 | 2855 |
{ |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2856 |
// we are only interested in the oop result projection from a call |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2857 |
if (n->as_Proj()->_con == TypeFunc::Parms && n->in(0)->is_Call() ) { |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2858 |
assert(ptnode_adr(n->in(0)->_idx)->node_type() != PointsToNode::UnknownType, |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2859 |
"all nodes should be registered"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2860 |
const TypeTuple *r = n->in(0)->as_Call()->tf()->range(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2861 |
assert(r->cnt() > TypeFunc::Parms, "sanity"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2862 |
if (r->field_at(TypeFunc::Parms)->isa_ptr() != NULL) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2863 |
process_call_result(n->as_Proj(), phase); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2864 |
assert(_processed.test(n_idx), "all call results should be processed"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2865 |
break; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2866 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2867 |
} |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2868 |
assert(false, "Op_Proj"); |
1 | 2869 |
break; |
2870 |
} |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2871 |
case Op_Return: |
1 | 2872 |
{ |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2873 |
#ifdef ASSERT |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2874 |
if( n->req() <= TypeFunc::Parms || |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2875 |
!phase->type(n->in(TypeFunc::Parms))->isa_oopptr() ) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2876 |
assert(false, "Op_Return"); |
1 | 2877 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2878 |
#endif |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2879 |
int ti = n->in(TypeFunc::Parms)->_idx; |
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2880 |
assert(ptnode_adr(ti)->node_type() != PointsToNode::UnknownType, "node should be registered"); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2881 |
if (ptnode_adr(ti)->node_type() == PointsToNode::JavaObject) { |
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2882 |
add_pointsto_edge(n_idx, ti); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2883 |
} else { |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2884 |
add_deferred_edge(n_idx, ti); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2885 |
} |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2886 |
_processed.set(n_idx); |
1 | 2887 |
break; |
2888 |
} |
|
2889 |
case Op_StoreP: |
|
371
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2890 |
case Op_StoreN: |
1 | 2891 |
case Op_StorePConditional: |
2892 |
case Op_CompareAndSwapP: |
|
371
1aacedc9db7c
6689060: Escape Analysis does not work with Compressed Oops
kvn
parents:
360
diff
changeset
|
2893 |
case Op_CompareAndSwapN: |
1 | 2894 |
{ |
2895 |
Node *adr = n->in(MemNode::Address); |
|
767
64fb1fd7186d
6710487: More than half of JDI Regression tests hang with COOPs in -Xcomp mode
kvn
parents:
594
diff
changeset
|
2896 |
const Type *adr_type = phase->type(adr)->make_ptr(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2897 |
#ifdef ASSERT |
1 | 2898 |
if (!adr_type->isa_oopptr()) |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2899 |
assert(phase->type(adr) == TypeRawPtr::NOTNULL, "Op_StoreP"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2900 |
#endif |
1 | 2901 |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2902 |
assert(adr->is_AddP(), "expecting an AddP"); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2903 |
Node *adr_base = get_addp_base(adr); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2904 |
Node *val = n->in(MemNode::ValueIn)->uncast(); |
11189 | 2905 |
int offset = address_offset(adr, phase); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2906 |
// For everything "adr_base" could point to, create a deferred edge |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2907 |
// to "val" from each field with the same offset. |
8319 | 2908 |
for( VectorSetI i(PointsTo(adr_base)); i.test(); ++i ) { |
1 | 2909 |
uint pt = i.elem; |
11189 | 2910 |
// Add field edge if it is missing. |
2911 |
add_field_edge(pt, adr->_idx, offset); |
|
2912 |
add_edge_from_fields(pt, val->_idx, offset); |
|
1 | 2913 |
} |
2914 |
break; |
|
2915 |
} |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2916 |
case Op_AryEq: |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2917 |
case Op_StrComp: |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2918 |
case Op_StrEquals: |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2919 |
case Op_StrIndexOf: |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2920 |
{ |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2921 |
// char[] arrays passed to string intrinsic do not escape but |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2922 |
// they are not scalar replaceable. Adjust escape state for them. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2923 |
// Start from in(2) edge since in(1) is memory edge. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2924 |
for (uint i = 2; i < n->req(); i++) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2925 |
Node* adr = n->in(i)->uncast(); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2926 |
const Type *at = phase->type(adr); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2927 |
if (!adr->is_top() && at->isa_ptr()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2928 |
assert(at == Type::TOP || at == TypePtr::NULL_PTR || |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2929 |
at->isa_ptr() != NULL, "expecting an Ptr"); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2930 |
if (adr->is_AddP()) { |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2931 |
adr = get_addp_base(adr); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2932 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2933 |
// Mark as ArgEscape everything "adr" could point to. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2934 |
set_escape_state(adr->_idx, PointsToNode::ArgEscape); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2935 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2936 |
} |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2937 |
_processed.set(n_idx); |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2938 |
break; |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2939 |
} |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2940 |
case Op_ThreadLocal: |
1 | 2941 |
{ |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2942 |
assert(false, "Op_ThreadLocal"); |
1 | 2943 |
break; |
2944 |
} |
|
2945 |
default: |
|
4470
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2946 |
// This method should be called only for EA specific nodes. |
1e6edcab3109
6895383: JCK test throws NPE for method compiled with Escape Analysis
kvn
parents:
4442
diff
changeset
|
2947 |
ShouldNotReachHere(); |
1 | 2948 |
} |
2949 |
} |
|
2950 |
||
2951 |
#ifndef PRODUCT |
|
2952 |
void ConnectionGraph::dump() { |
|
2953 |
bool first = true; |
|
2954 |
||
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2955 |
uint size = nodes_size(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2956 |
for (uint ni = 0; ni < size; ni++) { |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2957 |
PointsToNode *ptn = ptnode_adr(ni); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2958 |
PointsToNode::NodeType ptn_type = ptn->node_type(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2959 |
|
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2960 |
if (ptn_type != PointsToNode::JavaObject || ptn->_node == NULL) |
1 | 2961 |
continue; |
5914
8363e7e6915a
6966411: escape.cpp:450 assert(base->Opcode() == Op_ConP
kvn
parents:
5547
diff
changeset
|
2962 |
PointsToNode::EscapeState es = escape_state(ptn->_node); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2963 |
if (ptn->_node->is_Allocate() && (es == PointsToNode::NoEscape || Verbose)) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2964 |
if (first) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2965 |
tty->cr(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2966 |
tty->print("======== Connection graph for "); |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2967 |
_compile->method()->print_short_name(); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2968 |
tty->cr(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2969 |
first = false; |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2970 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2971 |
tty->print("%6d ", ni); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2972 |
ptn->dump(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2973 |
// Print all locals which reference this allocation |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2974 |
for (uint li = ni; li < size; li++) { |
952
38812d18eec0
6684714: Optimize EA Connection Graph build performance
kvn
parents:
769
diff
changeset
|
2975 |
PointsToNode *ptn_loc = ptnode_adr(li); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2976 |
PointsToNode::NodeType ptn_loc_type = ptn_loc->node_type(); |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2977 |
if ( ptn_loc_type == PointsToNode::LocalVar && ptn_loc->_node != NULL && |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2978 |
ptn_loc->edge_count() == 1 && ptn_loc->edge_target(0) == ni ) { |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
2979 |
ptnode_adr(li)->dump(false); |
1 | 2980 |
} |
2981 |
} |
|
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2982 |
if (Verbose) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2983 |
// Print all fields which reference this allocation |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2984 |
for (uint i = 0; i < ptn->edge_count(); i++) { |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2985 |
uint ei = ptn->edge_target(i); |
961
7fb3b13d4205
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
955
diff
changeset
|
2986 |
ptnode_adr(ei)->dump(false); |
238
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2987 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2988 |
} |
803c80713999
6674588: (Escape Analysis) Improve Escape Analysis code
kvn
parents:
212
diff
changeset
|
2989 |
tty->cr(); |
1 | 2990 |
} |
2991 |
} |
|
2992 |
} |
|
2993 |
#endif |