Mon, 26 Sep 2011 10:24:05 -0700
7081933: Use zeroing elimination optimization for large array
Summary: Don't zero new typeArray during runtime call if the allocation is followed by arraycopy into it.
Reviewed-by: twisti
1 /*
2 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
25 #include "precompiled.hpp"
26 #include "opto/chaitin.hpp"
27 #include "opto/idealGraphPrinter.hpp"
28 #include "opto/machnode.hpp"
29 #include "opto/parse.hpp"
30 #include "runtime/threadCritical.hpp"
32 #ifndef PRODUCT
34 // Constants
35 // Keep consistent with Java constants
36 const char *IdealGraphPrinter::INDENT = " ";
37 const char *IdealGraphPrinter::TOP_ELEMENT = "graphDocument";
38 const char *IdealGraphPrinter::GROUP_ELEMENT = "group";
39 const char *IdealGraphPrinter::GRAPH_ELEMENT = "graph";
40 const char *IdealGraphPrinter::PROPERTIES_ELEMENT = "properties";
41 const char *IdealGraphPrinter::EDGES_ELEMENT = "edges";
42 const char *IdealGraphPrinter::PROPERTY_ELEMENT = "p";
43 const char *IdealGraphPrinter::EDGE_ELEMENT = "edge";
44 const char *IdealGraphPrinter::NODE_ELEMENT = "node";
45 const char *IdealGraphPrinter::NODES_ELEMENT = "nodes";
46 const char *IdealGraphPrinter::REMOVE_EDGE_ELEMENT = "removeEdge";
47 const char *IdealGraphPrinter::REMOVE_NODE_ELEMENT = "removeNode";
48 const char *IdealGraphPrinter::METHOD_NAME_PROPERTY = "name";
49 const char *IdealGraphPrinter::METHOD_IS_PUBLIC_PROPERTY = "public";
50 const char *IdealGraphPrinter::METHOD_IS_STATIC_PROPERTY = "static";
51 const char *IdealGraphPrinter::TRUE_VALUE = "true";
52 const char *IdealGraphPrinter::NODE_NAME_PROPERTY = "name";
53 const char *IdealGraphPrinter::EDGE_NAME_PROPERTY = "name";
54 const char *IdealGraphPrinter::NODE_ID_PROPERTY = "id";
55 const char *IdealGraphPrinter::FROM_PROPERTY = "from";
56 const char *IdealGraphPrinter::TO_PROPERTY = "to";
57 const char *IdealGraphPrinter::PROPERTY_NAME_PROPERTY = "name";
58 const char *IdealGraphPrinter::GRAPH_NAME_PROPERTY = "name";
59 const char *IdealGraphPrinter::INDEX_PROPERTY = "index";
60 const char *IdealGraphPrinter::METHOD_ELEMENT = "method";
61 const char *IdealGraphPrinter::INLINE_ELEMENT = "inline";
62 const char *IdealGraphPrinter::BYTECODES_ELEMENT = "bytecodes";
63 const char *IdealGraphPrinter::METHOD_BCI_PROPERTY = "bci";
64 const char *IdealGraphPrinter::METHOD_SHORT_NAME_PROPERTY = "shortName";
65 const char *IdealGraphPrinter::CONTROL_FLOW_ELEMENT = "controlFlow";
66 const char *IdealGraphPrinter::BLOCK_NAME_PROPERTY = "name";
67 const char *IdealGraphPrinter::BLOCK_DOMINATOR_PROPERTY = "dom";
68 const char *IdealGraphPrinter::BLOCK_ELEMENT = "block";
69 const char *IdealGraphPrinter::SUCCESSORS_ELEMENT = "successors";
70 const char *IdealGraphPrinter::SUCCESSOR_ELEMENT = "successor";
71 const char *IdealGraphPrinter::ASSEMBLY_ELEMENT = "assembly";
73 int IdealGraphPrinter::_file_count = 0;
75 IdealGraphPrinter *IdealGraphPrinter::printer() {
76 if (PrintIdealGraphLevel == 0) return NULL;
78 JavaThread *thread = JavaThread::current();
79 if (!thread->is_Compiler_thread()) return NULL;
81 CompilerThread *compiler_thread = (CompilerThread *)thread;
82 if (compiler_thread->ideal_graph_printer() == NULL) {
83 IdealGraphPrinter *printer = new IdealGraphPrinter();
84 compiler_thread->set_ideal_graph_printer(printer);
85 }
87 return compiler_thread->ideal_graph_printer();
88 }
90 void IdealGraphPrinter::clean_up() {
91 JavaThread *p;
92 for (p = Threads::first(); p; p = p->next()) {
93 if (p->is_Compiler_thread()) {
94 CompilerThread *c = (CompilerThread *)p;
95 IdealGraphPrinter *printer = c->ideal_graph_printer();
96 if (printer) {
97 delete printer;
98 }
99 c->set_ideal_graph_printer(NULL);
100 }
101 }
102 }
104 // Constructor, either file or network output
105 IdealGraphPrinter::IdealGraphPrinter() {
107 // By default dump both ins and outs since dead or unreachable code
108 // needs to appear in the graph. There are also some special cases
109 // in the mach where kill projections have no users but should
110 // appear in the dump.
111 _traverse_outs = true;
112 _should_send_method = true;
113 _output = NULL;
114 buffer[0] = 0;
115 _depth = 0;
116 _current_method = NULL;
117 assert(!_current_method, "current method must be initialized to NULL");
118 _stream = NULL;
120 if (PrintIdealGraphFile != NULL) {
121 ThreadCritical tc;
122 // User wants all output to go to files
123 if (_file_count != 0) {
124 ResourceMark rm;
125 stringStream st;
126 const char* dot = strrchr(PrintIdealGraphFile, '.');
127 if (dot) {
128 st.write(PrintIdealGraphFile, dot - PrintIdealGraphFile);
129 st.print("%d%s", _file_count, dot);
130 } else {
131 st.print("%s%d", PrintIdealGraphFile, _file_count);
132 }
133 fileStream *stream = new (ResourceObj::C_HEAP) fileStream(st.as_string());
134 _output = stream;
135 } else {
136 fileStream *stream = new (ResourceObj::C_HEAP) fileStream(PrintIdealGraphFile);
137 _output = stream;
138 }
139 _file_count++;
140 } else {
141 _stream = new (ResourceObj::C_HEAP) networkStream();
143 // Try to connect to visualizer
144 if (_stream->connect(PrintIdealGraphAddress, PrintIdealGraphPort)) {
145 char c = 0;
146 _stream->read(&c, 1);
147 if (c != 'y') {
148 tty->print_cr("Client available, but does not want to receive data!");
149 _stream->close();
150 delete _stream;
151 _stream = NULL;
152 return;
153 }
154 _output = _stream;
155 } else {
156 // It would be nice if we could shut down cleanly but it should
157 // be an error if we can't connect to the visualizer.
158 fatal(err_msg("Couldn't connect to visualizer at %s:%d",
159 PrintIdealGraphAddress, PrintIdealGraphPort));
160 }
161 }
163 _xml = new (ResourceObj::C_HEAP) xmlStream(_output);
165 head(TOP_ELEMENT);
166 }
168 // Destructor, close file or network stream
169 IdealGraphPrinter::~IdealGraphPrinter() {
171 tail(TOP_ELEMENT);
173 // tty->print_cr("Walk time: %d", (int)_walk_time.milliseconds());
174 // tty->print_cr("Output time: %d", (int)_output_time.milliseconds());
175 // tty->print_cr("Build blocks time: %d", (int)_build_blocks_time.milliseconds());
177 if(_xml) {
178 delete _xml;
179 _xml = NULL;
180 }
182 if (_stream) {
183 delete _stream;
184 if (_stream == _output) {
185 _output = NULL;
186 }
187 _stream = NULL;
188 }
190 if (_output) {
191 delete _output;
192 _output = NULL;
193 }
194 }
197 void IdealGraphPrinter::begin_elem(const char *s) {
198 _xml->begin_elem(s);
199 }
201 void IdealGraphPrinter::end_elem() {
202 _xml->end_elem();
203 }
205 void IdealGraphPrinter::begin_head(const char *s) {
206 _xml->begin_head(s);
207 }
209 void IdealGraphPrinter::end_head() {
210 _xml->end_head();
211 }
213 void IdealGraphPrinter::print_attr(const char *name, intptr_t val) {
214 stringStream stream;
215 stream.print(INTX_FORMAT, val);
216 print_attr(name, stream.as_string());
217 }
219 void IdealGraphPrinter::print_attr(const char *name, const char *val) {
220 _xml->print(" %s='", name);
221 text(val);
222 _xml->print("'");
223 }
225 void IdealGraphPrinter::head(const char *name) {
226 _xml->head(name);
227 }
229 void IdealGraphPrinter::tail(const char *name) {
230 _xml->tail(name);
231 }
233 void IdealGraphPrinter::text(const char *s) {
234 _xml->text(s);
235 }
237 void IdealGraphPrinter::print_prop(const char *name, int val) {
239 stringStream stream;
240 stream.print("%d", val);
241 print_prop(name, stream.as_string());
242 }
244 void IdealGraphPrinter::print_prop(const char *name, const char *val) {
245 begin_head(PROPERTY_ELEMENT);
246 print_attr(PROPERTY_NAME_PROPERTY, name);
247 end_head();
248 text(val);
249 tail(PROPERTY_ELEMENT);
250 }
252 void IdealGraphPrinter::print_method(ciMethod *method, int bci, InlineTree *tree) {
253 begin_head(METHOD_ELEMENT);
255 stringStream str;
256 method->print_name(&str);
258 stringStream shortStr;
259 method->print_short_name(&shortStr);
261 print_attr(METHOD_NAME_PROPERTY, str.as_string());
262 print_attr(METHOD_SHORT_NAME_PROPERTY, shortStr.as_string());
263 print_attr(METHOD_BCI_PROPERTY, bci);
265 end_head();
267 head(BYTECODES_ELEMENT);
268 output()->print_cr("<![CDATA[");
269 method->print_codes_on(output());
270 output()->print_cr("]]>");
271 tail(BYTECODES_ELEMENT);
273 head(INLINE_ELEMENT);
274 if (tree != NULL) {
275 GrowableArray<InlineTree *> subtrees = tree->subtrees();
276 for (int i = 0; i < subtrees.length(); i++) {
277 print_inline_tree(subtrees.at(i));
278 }
279 }
280 tail(INLINE_ELEMENT);
282 tail(METHOD_ELEMENT);
283 output()->flush();
284 }
286 void IdealGraphPrinter::print_inline_tree(InlineTree *tree) {
288 if (tree == NULL) return;
290 ciMethod *method = tree->method();
291 print_method(tree->method(), tree->caller_bci(), tree);
293 }
295 void IdealGraphPrinter::print_inlining(Compile* compile) {
297 // Print inline tree
298 if (_should_send_method) {
299 InlineTree *inlineTree = compile->ilt();
300 if (inlineTree != NULL) {
301 print_inline_tree(inlineTree);
302 } else {
303 // print this method only
304 }
305 }
306 }
308 // Has to be called whenever a method is compiled
309 void IdealGraphPrinter::begin_method(Compile* compile) {
311 ciMethod *method = compile->method();
312 assert(_output, "output stream must exist!");
313 assert(method, "null methods are not allowed!");
314 assert(!_current_method, "current method must be null!");
316 head(GROUP_ELEMENT);
318 head(PROPERTIES_ELEMENT);
320 // Print properties
321 // Add method name
322 stringStream strStream;
323 method->print_name(&strStream);
324 print_prop(METHOD_NAME_PROPERTY, strStream.as_string());
326 if (method->flags().is_public()) {
327 print_prop(METHOD_IS_PUBLIC_PROPERTY, TRUE_VALUE);
328 }
330 if (method->flags().is_static()) {
331 print_prop(METHOD_IS_STATIC_PROPERTY, TRUE_VALUE);
332 }
334 tail(PROPERTIES_ELEMENT);
336 if (_stream) {
337 char answer = 0;
338 _xml->flush();
339 int result = _stream->read(&answer, 1);
340 _should_send_method = (answer == 'y');
341 }
343 this->_current_method = method;
345 _xml->flush();
346 }
348 // Has to be called whenever a method has finished compilation
349 void IdealGraphPrinter::end_method() {
351 nmethod* method = (nmethod*)this->_current_method->code();
353 tail(GROUP_ELEMENT);
354 _current_method = NULL;
355 _xml->flush();
356 }
358 // Print indent
359 void IdealGraphPrinter::print_indent() {
360 tty->print_cr("printing ident %d", _depth);
361 for (int i = 0; i < _depth; i++) {
362 _xml->print(INDENT);
363 }
364 }
366 bool IdealGraphPrinter::traverse_outs() {
367 return _traverse_outs;
368 }
370 void IdealGraphPrinter::set_traverse_outs(bool b) {
371 _traverse_outs = b;
372 }
374 intptr_t IdealGraphPrinter::get_node_id(Node *n) {
375 return (intptr_t)(n);
376 }
378 void IdealGraphPrinter::visit_node(Node *n, bool edges, VectorSet* temp_set) {
380 if (edges) {
382 // Output edge
383 intptr_t dest_id = get_node_id(n);
384 for ( uint i = 0; i < n->len(); i++ ) {
385 if ( n->in(i) ) {
386 Node *source = n->in(i);
387 begin_elem(EDGE_ELEMENT);
388 intptr_t source_id = get_node_id(source);
389 print_attr(FROM_PROPERTY, source_id);
390 print_attr(TO_PROPERTY, dest_id);
391 print_attr(INDEX_PROPERTY, i);
392 end_elem();
393 }
394 }
396 } else {
398 // Output node
399 begin_head(NODE_ELEMENT);
400 print_attr(NODE_ID_PROPERTY, get_node_id(n));
401 end_head();
403 head(PROPERTIES_ELEMENT);
405 Node *node = n;
406 #ifndef PRODUCT
407 node->_in_dump_cnt++;
408 print_prop(NODE_NAME_PROPERTY, (const char *)node->Name());
409 const Type *t = node->bottom_type();
410 print_prop("type", (const char *)Type::msg[t->base()]);
411 print_prop("idx", node->_idx);
412 #ifdef ASSERT
413 print_prop("debug_idx", node->_debug_idx);
414 #endif
416 if(C->cfg() != NULL) {
417 Block *block = C->cfg()->_bbs[node->_idx];
418 if(block == NULL) {
419 print_prop("block", C->cfg()->_blocks[0]->_pre_order);
420 } else {
421 print_prop("block", block->_pre_order);
422 }
423 }
425 const jushort flags = node->flags();
426 if (flags & Node::Flag_is_Copy) {
427 print_prop("is_copy", "true");
428 }
429 if (flags & Node::Flag_rematerialize) {
430 print_prop("rematerialize", "true");
431 }
432 if (flags & Node::Flag_needs_anti_dependence_check) {
433 print_prop("needs_anti_dependence_check", "true");
434 }
435 if (flags & Node::Flag_is_macro) {
436 print_prop("is_macro", "true");
437 }
438 if (flags & Node::Flag_is_Con) {
439 print_prop("is_con", "true");
440 }
441 if (flags & Node::Flag_is_cisc_alternate) {
442 print_prop("is_cisc_alternate", "true");
443 }
444 if (flags & Node::Flag_is_dead_loop_safe) {
445 print_prop("is_dead_loop_safe", "true");
446 }
447 if (flags & Node::Flag_may_be_short_branch) {
448 print_prop("may_be_short_branch", "true");
449 }
451 if (C->matcher() != NULL) {
452 if (C->matcher()->is_shared(node)) {
453 print_prop("is_shared", "true");
454 } else {
455 print_prop("is_shared", "false");
456 }
457 if (C->matcher()->is_dontcare(node)) {
458 print_prop("is_dontcare", "true");
459 } else {
460 print_prop("is_dontcare", "false");
461 }
463 #ifdef ASSERT
464 Node* old = C->matcher()->find_old_node(node);
465 if (old != NULL) {
466 print_prop("old_node_idx", old->_idx);
467 }
468 #endif
469 }
471 if (node->is_Proj()) {
472 print_prop("con", (int)node->as_Proj()->_con);
473 }
475 if (node->is_Mach()) {
476 print_prop("idealOpcode", (const char *)NodeClassNames[node->as_Mach()->ideal_Opcode()]);
477 }
479 buffer[0] = 0;
480 stringStream s2(buffer, sizeof(buffer) - 1);
482 node->dump_spec(&s2);
483 if (t != NULL && (t->isa_instptr() || t->isa_klassptr())) {
484 const TypeInstPtr *toop = t->isa_instptr();
485 const TypeKlassPtr *tkls = t->isa_klassptr();
486 ciKlass* klass = toop ? toop->klass() : (tkls ? tkls->klass() : NULL );
487 if( klass && klass->is_loaded() && klass->is_interface() ) {
488 s2.print(" Interface:");
489 } else if( toop ) {
490 s2.print(" Oop:");
491 } else if( tkls ) {
492 s2.print(" Klass:");
493 }
494 t->dump_on(&s2);
495 } else if( t == Type::MEMORY ) {
496 s2.print(" Memory:");
497 MemNode::dump_adr_type(node, node->adr_type(), &s2);
498 }
500 assert(s2.size() < sizeof(buffer), "size in range");
501 print_prop("dump_spec", buffer);
503 if (node->is_block_proj()) {
504 print_prop("is_block_proj", "true");
505 }
507 if (node->is_block_start()) {
508 print_prop("is_block_start", "true");
509 }
511 const char *short_name = "short_name";
512 if (strcmp(node->Name(), "Parm") == 0 && node->as_Proj()->_con >= TypeFunc::Parms) {
513 int index = node->as_Proj()->_con - TypeFunc::Parms;
514 if (index >= 10) {
515 print_prop(short_name, "PA");
516 } else {
517 sprintf(buffer, "P%d", index);
518 print_prop(short_name, buffer);
519 }
520 } else if (strcmp(node->Name(), "IfTrue") == 0) {
521 print_prop(short_name, "T");
522 } else if (strcmp(node->Name(), "IfFalse") == 0) {
523 print_prop(short_name, "F");
524 } else if ((node->is_Con() && node->is_Type()) || node->is_Proj()) {
526 if (t->base() == Type::Int && t->is_int()->is_con()) {
527 const TypeInt *typeInt = t->is_int();
528 assert(typeInt->is_con(), "must be constant");
529 jint value = typeInt->get_con();
531 // max. 2 chars allowed
532 if (value >= -9 && value <= 99) {
533 sprintf(buffer, "%d", value);
534 print_prop(short_name, buffer);
535 } else {
536 print_prop(short_name, "I");
537 }
538 } else if (t == Type::TOP) {
539 print_prop(short_name, "^");
540 } else if (t->base() == Type::Long && t->is_long()->is_con()) {
541 const TypeLong *typeLong = t->is_long();
542 assert(typeLong->is_con(), "must be constant");
543 jlong value = typeLong->get_con();
545 // max. 2 chars allowed
546 if (value >= -9 && value <= 99) {
547 sprintf(buffer, INT64_FORMAT, value);
548 print_prop(short_name, buffer);
549 } else {
550 print_prop(short_name, "L");
551 }
552 } else if (t->base() == Type::KlassPtr) {
553 const TypeKlassPtr *typeKlass = t->is_klassptr();
554 print_prop(short_name, "CP");
555 } else if (t->base() == Type::Control) {
556 print_prop(short_name, "C");
557 } else if (t->base() == Type::Memory) {
558 print_prop(short_name, "M");
559 } else if (t->base() == Type::Abio) {
560 print_prop(short_name, "IO");
561 } else if (t->base() == Type::Return_Address) {
562 print_prop(short_name, "RA");
563 } else if (t->base() == Type::AnyPtr) {
564 print_prop(short_name, "P");
565 } else if (t->base() == Type::RawPtr) {
566 print_prop(short_name, "RP");
567 } else if (t->base() == Type::AryPtr) {
568 print_prop(short_name, "AP");
569 }
570 }
572 JVMState* caller = NULL;
573 if (node->is_SafePoint()) {
574 caller = node->as_SafePoint()->jvms();
575 } else {
576 Node_Notes* notes = C->node_notes_at(node->_idx);
577 if (notes != NULL) {
578 caller = notes->jvms();
579 }
580 }
582 if (caller != NULL) {
583 stringStream bciStream;
584 ciMethod* last = NULL;
585 int last_bci;
586 while(caller) {
587 if (caller->has_method()) {
588 last = caller->method();
589 last_bci = caller->bci();
590 }
591 bciStream.print("%d ", caller->bci());
592 caller = caller->caller();
593 }
594 print_prop("bci", bciStream.as_string());
595 if (last != NULL && last->has_linenumber_table() && last_bci >= 0) {
596 print_prop("line", last->line_number_from_bci(last_bci));
597 }
598 }
600 #ifdef ASSERT
601 if (node->debug_orig() != NULL) {
602 temp_set->Clear();
603 stringStream dorigStream;
604 Node* dorig = node->debug_orig();
605 while (dorig && temp_set->test_set(dorig->_idx)) {
606 dorigStream.print("%d ", dorig->_idx);
607 }
608 print_prop("debug_orig", dorigStream.as_string());
609 }
610 #endif
612 if (_chaitin && _chaitin != (PhaseChaitin *)0xdeadbeef) {
613 buffer[0] = 0;
614 _chaitin->dump_register(node, buffer);
615 print_prop("reg", buffer);
616 print_prop("lrg", _chaitin->n2lidx(node));
617 }
619 node->_in_dump_cnt--;
620 #endif
622 tail(PROPERTIES_ELEMENT);
623 tail(NODE_ELEMENT);
624 }
625 }
627 void IdealGraphPrinter::walk_nodes(Node *start, bool edges, VectorSet* temp_set) {
630 VectorSet visited(Thread::current()->resource_area());
631 GrowableArray<Node *> nodeStack(Thread::current()->resource_area(), 0, 0, NULL);
632 nodeStack.push(start);
633 visited.test_set(start->_idx);
634 if (C->cfg() != NULL) {
635 // once we have a CFG there are some nodes that aren't really
636 // reachable but are in the CFG so add them here.
637 for (uint i = 0; i < C->cfg()->_blocks.size(); i++) {
638 Block *b = C->cfg()->_blocks[i];
639 for (uint s = 0; s < b->_nodes.size(); s++) {
640 nodeStack.push(b->_nodes[s]);
641 }
642 }
643 }
645 while(nodeStack.length() > 0) {
647 Node *n = nodeStack.pop();
648 visit_node(n, edges, temp_set);
650 if (_traverse_outs) {
651 for (DUIterator i = n->outs(); n->has_out(i); i++) {
652 Node* p = n->out(i);
653 if (!visited.test_set(p->_idx)) {
654 nodeStack.push(p);
655 }
656 }
657 }
659 for ( uint i = 0; i < n->len(); i++ ) {
660 if ( n->in(i) ) {
661 if (!visited.test_set(n->in(i)->_idx)) {
662 nodeStack.push(n->in(i));
663 }
664 }
665 }
666 }
667 }
669 void IdealGraphPrinter::print_method(Compile* compile, const char *name, int level, bool clear_nodes) {
670 print(compile, name, (Node *)compile->root(), level, clear_nodes);
671 }
673 // Print current ideal graph
674 void IdealGraphPrinter::print(Compile* compile, const char *name, Node *node, int level, bool clear_nodes) {
676 if (!_current_method || !_should_send_method || level > PrintIdealGraphLevel) return;
678 this->C = compile;
680 // Warning, unsafe cast?
681 _chaitin = (PhaseChaitin *)C->regalloc();
683 begin_head(GRAPH_ELEMENT);
684 print_attr(GRAPH_NAME_PROPERTY, (const char *)name);
685 end_head();
687 VectorSet temp_set(Thread::current()->resource_area());
689 head(NODES_ELEMENT);
690 walk_nodes(node, false, &temp_set);
691 tail(NODES_ELEMENT);
693 head(EDGES_ELEMENT);
694 walk_nodes(node, true, &temp_set);
695 tail(EDGES_ELEMENT);
696 if (C->cfg() != NULL) {
697 head(CONTROL_FLOW_ELEMENT);
698 for (uint i = 0; i < C->cfg()->_blocks.size(); i++) {
699 Block *b = C->cfg()->_blocks[i];
700 begin_head(BLOCK_ELEMENT);
701 print_attr(BLOCK_NAME_PROPERTY, b->_pre_order);
702 end_head();
704 head(SUCCESSORS_ELEMENT);
705 for (uint s = 0; s < b->_num_succs; s++) {
706 begin_elem(SUCCESSOR_ELEMENT);
707 print_attr(BLOCK_NAME_PROPERTY, b->_succs[s]->_pre_order);
708 end_elem();
709 }
710 tail(SUCCESSORS_ELEMENT);
712 head(NODES_ELEMENT);
713 for (uint s = 0; s < b->_nodes.size(); s++) {
714 begin_elem(NODE_ELEMENT);
715 print_attr(NODE_ID_PROPERTY, get_node_id(b->_nodes[s]));
716 end_elem();
717 }
718 tail(NODES_ELEMENT);
720 tail(BLOCK_ELEMENT);
721 }
722 tail(CONTROL_FLOW_ELEMENT);
723 }
724 tail(GRAPH_ELEMENT);
725 output()->flush();
726 }
728 extern const char *NodeClassNames[];
730 outputStream *IdealGraphPrinter::output() {
731 return _xml;
732 }
734 #endif