Mercurial > hg > graal-jvmci-8
annotate src/share/vm/opto/parse.hpp @ 223:1dd146f17531
6716441: error in meet with +DoEscapeAnalysis
Summary: Set instance_id to InstanceBot for InstPtr->meet(AryPtr) when types are not related.
Reviewed-by: jrose, never
author | kvn |
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date | Thu, 26 Jun 2008 13:34:00 -0700 |
parents | 874b2c4f43d1 |
children | d1605aabd0a1 |
rev | line source |
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0 | 1 /* |
2 * Copyright 1997-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 class BytecodeParseHistogram; | |
26 class InlineTree; | |
27 class Parse; | |
28 class SwitchRange; | |
29 | |
30 | |
31 //------------------------------InlineTree------------------------------------- | |
32 class InlineTree : public ResourceObj { | |
33 Compile* C; // cache | |
34 JVMState* _caller_jvms; // state of caller | |
35 ciMethod* _method; // method being called by the caller_jvms | |
36 InlineTree* _caller_tree; | |
37 uint _count_inline_bcs; // Accumulated count of inlined bytecodes | |
38 // Call-site count / interpreter invocation count, scaled recursively. | |
39 // Always between 0.0 and 1.0. Represents the percentage of the method's | |
40 // total execution time used at this call site. | |
41 const float _site_invoke_ratio; | |
42 float compute_callee_frequency( int caller_bci ) const; | |
43 | |
44 GrowableArray<InlineTree*> _subtrees; | |
45 friend class Compile; | |
46 | |
47 protected: | |
48 InlineTree(Compile* C, | |
49 const InlineTree* caller_tree, | |
50 ciMethod* callee_method, | |
51 JVMState* caller_jvms, | |
52 int caller_bci, | |
53 float site_invoke_ratio); | |
54 InlineTree *build_inline_tree_for_callee(ciMethod* callee_method, | |
55 JVMState* caller_jvms, | |
56 int caller_bci); | |
41
874b2c4f43d1
6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents:
0
diff
changeset
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57 const char* try_to_inline(ciMethod* callee_method, ciMethod* caller_method, int caller_bci, ciCallProfile& profile, WarmCallInfo* wci_result); |
874b2c4f43d1
6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents:
0
diff
changeset
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58 const char* shouldInline(ciMethod* callee_method, ciMethod* caller_method, int caller_bci, ciCallProfile& profile, WarmCallInfo* wci_result) const; |
874b2c4f43d1
6667605: (Escape Analysis) inline java constructors when EA is on
kvn
parents:
0
diff
changeset
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59 const char* shouldNotInline(ciMethod* callee_method, ciMethod* caller_method, WarmCallInfo* wci_result) const; |
0 | 60 void print_inlining(ciMethod *callee_method, int caller_bci, const char *failure_msg) const PRODUCT_RETURN; |
61 | |
62 InlineTree *caller_tree() const { return _caller_tree; } | |
63 InlineTree* callee_at(int bci, ciMethod* m) const; | |
64 int inline_depth() const { return _caller_jvms ? _caller_jvms->depth() : 0; } | |
65 | |
66 public: | |
67 static InlineTree* build_inline_tree_root(); | |
68 static InlineTree* find_subtree_from_root(InlineTree* root, JVMState* jvms, ciMethod* callee, bool create_if_not_found = false); | |
69 | |
70 // For temporary (stack-allocated, stateless) ilts: | |
71 InlineTree(Compile* c, ciMethod* callee_method, JVMState* caller_jvms, float site_invoke_ratio); | |
72 | |
73 // InlineTree enum | |
74 enum InlineStyle { | |
75 Inline_do_not_inline = 0, // | |
76 Inline_cha_is_monomorphic = 1, // | |
77 Inline_type_profile_monomorphic = 2 // | |
78 }; | |
79 | |
80 // See if it is OK to inline. | |
81 // The reciever is the inline tree for the caller. | |
82 // | |
83 // The result is a temperature indication. If it is hot or cold, | |
84 // inlining is immediate or undesirable. Otherwise, the info block | |
85 // returned is newly allocated and may be enqueued. | |
86 // | |
87 // If the method is inlinable, a new inline subtree is created on the fly, | |
88 // and may be accessed by find_subtree_from_root. | |
89 // The call_method is the dest_method for a special or static invocation. | |
90 // The call_method is an optimized virtual method candidate otherwise. | |
91 WarmCallInfo* ok_to_inline(ciMethod *call_method, JVMState* caller_jvms, ciCallProfile& profile, WarmCallInfo* wci); | |
92 | |
93 // Information about inlined method | |
94 JVMState* caller_jvms() const { return _caller_jvms; } | |
95 ciMethod *method() const { return _method; } | |
96 int caller_bci() const { return _caller_jvms ? _caller_jvms->bci() : InvocationEntryBci; } | |
97 uint count_inline_bcs() const { return _count_inline_bcs; } | |
98 float site_invoke_ratio() const { return _site_invoke_ratio; }; | |
99 | |
100 #ifndef PRODUCT | |
101 private: | |
102 uint _count_inlines; // Count of inlined methods | |
103 public: | |
104 // Debug information collected during parse | |
105 uint count_inlines() const { return _count_inlines; }; | |
106 #endif | |
107 GrowableArray<InlineTree*> subtrees() { return _subtrees; } | |
108 }; | |
109 | |
110 | |
111 //----------------------------------------------------------------------------- | |
112 //------------------------------Parse------------------------------------------ | |
113 // Parse bytecodes, build a Graph | |
114 class Parse : public GraphKit { | |
115 public: | |
116 // Per-block information needed by the parser: | |
117 class Block { | |
118 private: | |
119 ciTypeFlow::Block* _flow; | |
120 int _pred_count; // how many predecessors in CFG? | |
121 int _preds_parsed; // how many of these have been parsed? | |
122 uint _count; // how many times executed? Currently only set by _goto's | |
123 bool _is_parsed; // has this block been parsed yet? | |
124 bool _is_handler; // is this block an exception handler? | |
125 SafePointNode* _start_map; // all values flowing into this block | |
126 MethodLivenessResult _live_locals; // lazily initialized liveness bitmap | |
127 | |
128 int _num_successors; // Includes only normal control flow. | |
129 int _all_successors; // Include exception paths also. | |
130 Block** _successors; | |
131 | |
132 // Use init_node/init_graph to initialize Blocks. | |
133 // Block() : _live_locals((uintptr_t*)NULL,0) { ShouldNotReachHere(); } | |
134 Block() : _live_locals(NULL,0) { ShouldNotReachHere(); } | |
135 | |
136 public: | |
137 | |
138 // Set up the block data structure itself. | |
139 void init_node(Parse* outer, int po); | |
140 // Set up the block's relations to other blocks. | |
141 void init_graph(Parse* outer); | |
142 | |
143 ciTypeFlow::Block* flow() const { return _flow; } | |
144 int pred_count() const { return _pred_count; } | |
145 int preds_parsed() const { return _preds_parsed; } | |
146 bool is_parsed() const { return _is_parsed; } | |
147 bool is_handler() const { return _is_handler; } | |
148 void set_count( uint x ) { _count = x; } | |
149 uint count() const { return _count; } | |
150 | |
151 SafePointNode* start_map() const { assert(is_merged(),""); return _start_map; } | |
152 void set_start_map(SafePointNode* m) { assert(!is_merged(), ""); _start_map = m; } | |
153 | |
154 // True after any predecessor flows control into this block | |
155 bool is_merged() const { return _start_map != NULL; } | |
156 | |
157 // True when all non-exception predecessors have been parsed. | |
158 bool is_ready() const { return preds_parsed() == pred_count(); } | |
159 | |
160 int num_successors() const { return _num_successors; } | |
161 int all_successors() const { return _all_successors; } | |
162 Block* successor_at(int i) const { | |
163 assert((uint)i < (uint)all_successors(), ""); | |
164 return _successors[i]; | |
165 } | |
166 Block* successor_for_bci(int bci); | |
167 | |
168 int start() const { return flow()->start(); } | |
169 int limit() const { return flow()->limit(); } | |
170 int pre_order() const { return flow()->pre_order(); } | |
171 int start_sp() const { return flow()->stack_size(); } | |
172 | |
173 const Type* peek(int off=0) const { return stack_type_at(start_sp() - (off+1)); } | |
174 | |
175 const Type* stack_type_at(int i) const; | |
176 const Type* local_type_at(int i) const; | |
177 static const Type* get_type(ciType* t) { return Type::get_typeflow_type(t); } | |
178 | |
179 bool has_trap_at(int bci) const { return flow()->has_trap() && flow()->trap_bci() == bci; } | |
180 | |
181 // Call this just before parsing a block. | |
182 void mark_parsed() { | |
183 assert(!_is_parsed, "must parse each block exactly once"); | |
184 _is_parsed = true; | |
185 } | |
186 | |
187 // Return the phi/region input index for the "current" pred, | |
188 // and bump the pred number. For historical reasons these index | |
189 // numbers are handed out in descending order. The last index is | |
190 // always PhiNode::Input (i.e., 1). The value returned is known | |
191 // as a "path number" because it distinguishes by which path we are | |
192 // entering the block. | |
193 int next_path_num() { | |
194 assert(preds_parsed() < pred_count(), "too many preds?"); | |
195 return pred_count() - _preds_parsed++; | |
196 } | |
197 | |
198 // Add a previously unaccounted predecessor to this block. | |
199 // This operates by increasing the size of the block's region | |
200 // and all its phi nodes (if any). The value returned is a | |
201 // path number ("pnum"). | |
202 int add_new_path(); | |
203 | |
204 // Initialize me by recording the parser's map. My own map must be NULL. | |
205 void record_state(Parse* outer); | |
206 }; | |
207 | |
208 #ifndef PRODUCT | |
209 // BytecodeParseHistogram collects number of bytecodes parsed, nodes constructed, and transformations. | |
210 class BytecodeParseHistogram : public ResourceObj { | |
211 private: | |
212 enum BPHType { | |
213 BPH_transforms, | |
214 BPH_values | |
215 }; | |
216 static bool _initialized; | |
217 static uint _bytecodes_parsed [Bytecodes::number_of_codes]; | |
218 static uint _nodes_constructed[Bytecodes::number_of_codes]; | |
219 static uint _nodes_transformed[Bytecodes::number_of_codes]; | |
220 static uint _new_values [Bytecodes::number_of_codes]; | |
221 | |
222 Bytecodes::Code _initial_bytecode; | |
223 int _initial_node_count; | |
224 int _initial_transforms; | |
225 int _initial_values; | |
226 | |
227 Parse *_parser; | |
228 Compile *_compiler; | |
229 | |
230 // Initialization | |
231 static void reset(); | |
232 | |
233 // Return info being collected, select with global flag 'BytecodeParseInfo' | |
234 int current_count(BPHType info_selector); | |
235 | |
236 public: | |
237 BytecodeParseHistogram(Parse *p, Compile *c); | |
238 static bool initialized(); | |
239 | |
240 // Record info when starting to parse one bytecode | |
241 void set_initial_state( Bytecodes::Code bc ); | |
242 // Record results of parsing one bytecode | |
243 void record_change(); | |
244 | |
245 // Profile printing | |
246 static void print(float cutoff = 0.01F); // cutoff in percent | |
247 }; | |
248 | |
249 public: | |
250 // Record work done during parsing | |
251 BytecodeParseHistogram* _parse_histogram; | |
252 void set_parse_histogram(BytecodeParseHistogram *bph) { _parse_histogram = bph; } | |
253 BytecodeParseHistogram* parse_histogram() { return _parse_histogram; } | |
254 #endif | |
255 | |
256 private: | |
257 friend class Block; | |
258 | |
259 // Variables which characterize this compilation as a whole: | |
260 | |
261 JVMState* _caller; // JVMS which carries incoming args & state. | |
262 float _expected_uses; // expected number of calls to this code | |
263 float _prof_factor; // discount applied to my profile counts | |
264 int _depth; // Inline tree depth, for debug printouts | |
265 const TypeFunc*_tf; // My kind of function type | |
266 int _entry_bci; // the osr bci or InvocationEntryBci | |
267 | |
268 ciTypeFlow* _flow; // Results of previous flow pass. | |
269 Block* _blocks; // Array of basic-block structs. | |
270 int _block_count; // Number of elements in _blocks. | |
271 | |
272 GraphKit _exits; // Record all normal returns and throws here. | |
273 bool _wrote_final; // Did we write a final field? | |
274 bool _count_invocations; // update and test invocation counter | |
275 bool _method_data_update; // update method data oop | |
276 | |
277 // Variables which track Java semantics during bytecode parsing: | |
278 | |
279 Block* _block; // block currently getting parsed | |
280 ciBytecodeStream _iter; // stream of this method's bytecodes | |
281 | |
282 int _blocks_merged; // Progress meter: state merges from BB preds | |
283 int _blocks_parsed; // Progress meter: BBs actually parsed | |
284 | |
285 const FastLockNode* _synch_lock; // FastLockNode for synchronized method | |
286 | |
287 #ifndef PRODUCT | |
288 int _max_switch_depth; // Debugging SwitchRanges. | |
289 int _est_switch_depth; // Debugging SwitchRanges. | |
290 #endif | |
291 | |
292 public: | |
293 // Constructor | |
294 Parse(JVMState* caller, ciMethod* parse_method, float expected_uses); | |
295 | |
296 virtual Parse* is_Parse() const { return (Parse*)this; } | |
297 | |
298 public: | |
299 // Accessors. | |
300 JVMState* caller() const { return _caller; } | |
301 float expected_uses() const { return _expected_uses; } | |
302 float prof_factor() const { return _prof_factor; } | |
303 int depth() const { return _depth; } | |
304 const TypeFunc* tf() const { return _tf; } | |
305 // entry_bci() -- see osr_bci, etc. | |
306 | |
307 ciTypeFlow* flow() const { return _flow; } | |
308 // blocks() -- see pre_order_at, start_block, etc. | |
309 int block_count() const { return _block_count; } | |
310 | |
311 GraphKit& exits() { return _exits; } | |
312 bool wrote_final() const { return _wrote_final; } | |
313 void set_wrote_final(bool z) { _wrote_final = z; } | |
314 bool count_invocations() const { return _count_invocations; } | |
315 bool method_data_update() const { return _method_data_update; } | |
316 | |
317 Block* block() const { return _block; } | |
318 ciBytecodeStream& iter() { return _iter; } | |
319 Bytecodes::Code bc() const { return _iter.cur_bc(); } | |
320 | |
321 void set_block(Block* b) { _block = b; } | |
322 | |
323 // Derived accessors: | |
324 bool is_normal_parse() const { return _entry_bci == InvocationEntryBci; } | |
325 bool is_osr_parse() const { return _entry_bci != InvocationEntryBci; } | |
326 int osr_bci() const { assert(is_osr_parse(),""); return _entry_bci; } | |
327 | |
328 void set_parse_bci(int bci); | |
329 | |
330 // Must this parse be aborted? | |
331 bool failing() { return C->failing(); } | |
332 | |
333 Block* pre_order_at(int po) { | |
334 assert(0 <= po && po < _block_count, "oob"); | |
335 return &_blocks[po]; | |
336 } | |
337 Block* start_block() { | |
338 return pre_order_at(flow()->start_block()->pre_order()); | |
339 } | |
340 // Can return NULL if the flow pass did not complete a block. | |
341 Block* successor_for_bci(int bci) { | |
342 return block()->successor_for_bci(bci); | |
343 } | |
344 | |
345 private: | |
346 // Create a JVMS & map for the initial state of this method. | |
347 SafePointNode* create_entry_map(); | |
348 | |
349 // OSR helpers | |
350 Node *fetch_interpreter_state(int index, BasicType bt, Node *local_addrs, Node *local_addrs_base); | |
351 Node* check_interpreter_type(Node* l, const Type* type, SafePointNode* &bad_type_exit); | |
352 void load_interpreter_state(Node* osr_buf); | |
353 | |
354 // Functions for managing basic blocks: | |
355 void init_blocks(); | |
356 void load_state_from(Block* b); | |
357 void store_state_to(Block* b) { b->record_state(this); } | |
358 | |
359 // Parse all the basic blocks. | |
360 void do_all_blocks(); | |
361 | |
362 // Helper for do_all_blocks; makes one pass in pre-order. | |
363 void visit_blocks(); | |
364 | |
365 // Parse the current basic block | |
366 void do_one_block(); | |
367 | |
368 // Raise an error if we get a bad ciTypeFlow CFG. | |
369 void handle_missing_successor(int bci); | |
370 | |
371 // first actions (before BCI 0) | |
372 void do_method_entry(); | |
373 | |
374 // implementation of monitorenter/monitorexit | |
375 void do_monitor_enter(); | |
376 void do_monitor_exit(); | |
377 | |
378 // Eagerly create phie throughout the state, to cope with back edges. | |
379 void ensure_phis_everywhere(); | |
380 | |
381 // Merge the current mapping into the basic block starting at bci | |
382 void merge( int target_bci); | |
383 // Same as plain merge, except that it allocates a new path number. | |
384 void merge_new_path( int target_bci); | |
385 // Merge the current mapping into an exception handler. | |
386 void merge_exception(int target_bci); | |
387 // Helper: Merge the current mapping into the given basic block | |
388 void merge_common(Block* target, int pnum); | |
389 // Helper functions for merging individual cells. | |
390 PhiNode *ensure_phi( int idx, bool nocreate = false); | |
391 PhiNode *ensure_memory_phi(int idx, bool nocreate = false); | |
392 // Helper to merge the current memory state into the given basic block | |
393 void merge_memory_edges(MergeMemNode* n, int pnum, bool nophi); | |
394 | |
395 // Parse this bytecode, and alter the Parsers JVM->Node mapping | |
396 void do_one_bytecode(); | |
397 | |
398 // helper function to generate array store check | |
399 void array_store_check(); | |
400 // Helper function to generate array load | |
401 void array_load(BasicType etype); | |
402 // Helper function to generate array store | |
403 void array_store(BasicType etype); | |
404 // Helper function to compute array addressing | |
405 Node* array_addressing(BasicType type, int vals, const Type* *result2=NULL); | |
406 | |
407 // Pass current map to exits | |
408 void return_current(Node* value); | |
409 | |
410 // Register finalizers on return from Object.<init> | |
411 void call_register_finalizer(); | |
412 | |
413 // Insert a compiler safepoint into the graph | |
414 void add_safepoint(); | |
415 | |
416 // Insert a compiler safepoint into the graph, if there is a back-branch. | |
417 void maybe_add_safepoint(int target_bci) { | |
418 if (UseLoopSafepoints && target_bci <= bci()) { | |
419 add_safepoint(); | |
420 } | |
421 } | |
422 | |
423 // Note: Intrinsic generation routines may be found in library_call.cpp. | |
424 | |
425 // Helper function to setup Ideal Call nodes | |
426 void do_call(); | |
427 | |
428 // Helper function to uncommon-trap or bailout for non-compilable call-sites | |
429 bool can_not_compile_call_site(ciMethod *dest_method, ciInstanceKlass *klass); | |
430 | |
431 // Helper function to identify inlining potential at call-site | |
432 ciMethod* optimize_inlining(ciMethod* caller, int bci, ciInstanceKlass* klass, | |
433 ciMethod *dest_method, const TypeOopPtr* receiver_type); | |
434 | |
435 // Helper function to setup for type-profile based inlining | |
436 bool prepare_type_profile_inline(ciInstanceKlass* prof_klass, ciMethod* prof_method); | |
437 | |
438 // Helper functions for type checking bytecodes: | |
439 void do_checkcast(); | |
440 void do_instanceof(); | |
441 | |
442 // Helper functions for shifting & arithmetic | |
443 void modf(); | |
444 void modd(); | |
445 void l2f(); | |
446 | |
447 void do_irem(); | |
448 | |
449 // implementation of _get* and _put* bytecodes | |
450 void do_getstatic() { do_field_access(true, false); } | |
451 void do_getfield () { do_field_access(true, true); } | |
452 void do_putstatic() { do_field_access(false, false); } | |
453 void do_putfield () { do_field_access(false, true); } | |
454 | |
455 // common code for making initial checks and forming addresses | |
456 void do_field_access(bool is_get, bool is_field); | |
457 bool static_field_ok_in_clinit(ciField *field, ciMethod *method); | |
458 | |
459 // common code for actually performing the load or store | |
460 void do_get_xxx(const TypePtr* obj_type, Node* obj, ciField* field, bool is_field); | |
461 void do_put_xxx(const TypePtr* obj_type, Node* obj, ciField* field, bool is_field); | |
462 | |
463 // loading from a constant field or the constant pool | |
464 // returns false if push failed (non-perm field constants only, not ldcs) | |
465 bool push_constant(ciConstant con); | |
466 | |
467 // implementation of object creation bytecodes | |
468 void do_new(); | |
469 void do_newarray(BasicType elemtype); | |
470 void do_anewarray(); | |
471 void do_multianewarray(); | |
472 Node* expand_multianewarray(ciArrayKlass* array_klass, Node* *lengths, int ndimensions); | |
473 | |
474 // implementation of jsr/ret | |
475 void do_jsr(); | |
476 void do_ret(); | |
477 | |
478 float dynamic_branch_prediction(float &cnt); | |
479 float branch_prediction(float &cnt, BoolTest::mask btest, int target_bci); | |
480 bool seems_never_taken(float prob); | |
481 | |
482 void do_ifnull(BoolTest::mask btest); | |
483 void do_if(BoolTest::mask btest, Node* c); | |
484 void repush_if_args(); | |
485 void adjust_map_after_if(BoolTest::mask btest, Node* c, float prob, | |
486 Block* path, Block* other_path); | |
487 IfNode* jump_if_fork_int(Node* a, Node* b, BoolTest::mask mask); | |
488 Node* jump_if_join(Node* iffalse, Node* iftrue); | |
489 void jump_if_true_fork(IfNode *ifNode, int dest_bci_if_true, int prof_table_index); | |
490 void jump_if_false_fork(IfNode *ifNode, int dest_bci_if_false, int prof_table_index); | |
491 void jump_if_always_fork(int dest_bci_if_true, int prof_table_index); | |
492 | |
493 friend class SwitchRange; | |
494 void do_tableswitch(); | |
495 void do_lookupswitch(); | |
496 void jump_switch_ranges(Node* a, SwitchRange* lo, SwitchRange* hi, int depth = 0); | |
497 bool create_jump_tables(Node* a, SwitchRange* lo, SwitchRange* hi); | |
498 | |
499 // helper functions for methodData style profiling | |
500 void test_counter_against_threshold(Node* cnt, int limit); | |
501 void increment_and_test_invocation_counter(int limit); | |
502 void test_for_osr_md_counter_at(ciMethodData* md, ciProfileData* data, ByteSize offset, int limit); | |
503 Node* method_data_addressing(ciMethodData* md, ciProfileData* data, ByteSize offset, Node* idx = NULL, uint stride = 0); | |
504 void increment_md_counter_at(ciMethodData* md, ciProfileData* data, ByteSize offset, Node* idx = NULL, uint stride = 0); | |
505 void set_md_flag_at(ciMethodData* md, ciProfileData* data, int flag_constant); | |
506 | |
507 void profile_method_entry(); | |
508 void profile_taken_branch(int target_bci, bool force_update = false); | |
509 void profile_not_taken_branch(bool force_update = false); | |
510 void profile_call(Node* receiver); | |
511 void profile_generic_call(); | |
512 void profile_receiver_type(Node* receiver); | |
513 void profile_ret(int target_bci); | |
514 void profile_null_checkcast(); | |
515 void profile_switch_case(int table_index); | |
516 | |
517 // helper function for call statistics | |
518 void count_compiled_calls(bool at_method_entry, bool is_inline) PRODUCT_RETURN; | |
519 | |
520 Node_Notes* make_node_notes(Node_Notes* caller_nn); | |
521 | |
522 // Helper functions for handling normal and abnormal exits. | |
523 void build_exits(); | |
524 | |
525 // Fix up all exceptional control flow exiting a single bytecode. | |
526 void do_exceptions(); | |
527 | |
528 // Fix up all exiting control flow at the end of the parse. | |
529 void do_exits(); | |
530 | |
531 // Add Catch/CatchProjs | |
532 // The call is either a Java call or the VM's rethrow stub | |
533 void catch_call_exceptions(ciExceptionHandlerStream&); | |
534 | |
535 // Handle all exceptions thrown by the inlined method. | |
536 // Also handles exceptions for individual bytecodes. | |
537 void catch_inline_exceptions(SafePointNode* ex_map); | |
538 | |
539 // Bytecode classifier, helps decide to use uncommon_trap vs. rethrow_C. | |
540 bool can_rerun_bytecode(); | |
541 | |
542 // Merge the given map into correct exceptional exit state. | |
543 // Assumes that there is no applicable local handler. | |
544 void throw_to_exit(SafePointNode* ex_map); | |
545 | |
546 public: | |
547 #ifndef PRODUCT | |
548 // Handle PrintOpto, etc. | |
549 void show_parse_info(); | |
550 void dump_map_adr_mem() const; | |
551 static void print_statistics(); // Print some performance counters | |
552 void dump(); | |
553 void dump_bci(int bci); | |
554 #endif | |
555 }; |