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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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326 // which are not supported by the optimizing compiler. | 326 // which are not supported by the optimizing compiler. |
327 bool CheckArgumentsPhiUses(); | 327 bool CheckArgumentsPhiUses(); |
328 | 328 |
329 // Returns false if there are phi-uses of an uninitialized const | 329 // Returns false if there are phi-uses of an uninitialized const |
330 // which are not supported by the optimizing compiler. | 330 // which are not supported by the optimizing compiler. |
331 bool CheckConstPhiUses(); | 331 bool CheckConstPhiUses(); |
332 | 332 |
333 void CollectPhis(); | 333 void CollectPhis(); |
334 | 334 |
335 void set_undefined_constant(HConstant* constant) { | 335 void set_undefined_constant(HConstant* constant) { |
336 undefined_constant_.set(constant); | 336 constant_undefined_.set(constant); |
337 } | 337 } |
338 HConstant* GetConstantUndefined() const { return undefined_constant_.get(); } | 338 HConstant* GetConstantUndefined() const { return constant_undefined_.get(); } |
339 HConstant* GetConstant0(); | 339 HConstant* GetConstant0(); |
340 HConstant* GetConstant1(); | 340 HConstant* GetConstant1(); |
341 HConstant* GetConstantMinus1(); | 341 HConstant* GetConstantMinus1(); |
342 HConstant* GetConstantTrue(); | 342 HConstant* GetConstantTrue(); |
343 HConstant* GetConstantFalse(); | 343 HConstant* GetConstantFalse(); |
344 HConstant* GetConstantHole(); | 344 HConstant* GetConstantHole(); |
345 HConstant* GetConstantNull(); | 345 HConstant* GetConstantNull(); |
346 HConstant* GetInvalidContext(); | 346 HConstant* GetInvalidContext(); |
347 | 347 |
| 348 bool IsConstantUndefined(HConstant* constant); |
| 349 bool IsConstant0(HConstant* constant); |
| 350 bool IsConstant1(HConstant* constant); |
| 351 bool IsConstantMinus1(HConstant* constant); |
| 352 bool IsConstantTrue(HConstant* constant); |
| 353 bool IsConstantFalse(HConstant* constant); |
| 354 bool IsConstantHole(HConstant* constant); |
| 355 bool IsConstantNull(HConstant* constant); |
348 bool IsStandardConstant(HConstant* constant); | 356 bool IsStandardConstant(HConstant* constant); |
349 | 357 |
350 HBasicBlock* CreateBasicBlock(); | 358 HBasicBlock* CreateBasicBlock(); |
351 HArgumentsObject* GetArgumentsObject() const { | 359 HArgumentsObject* GetArgumentsObject() const { |
352 return arguments_object_.get(); | 360 return arguments_object_.get(); |
353 } | 361 } |
354 | 362 |
355 void SetArgumentsObject(HArgumentsObject* object) { | 363 void SetArgumentsObject(HArgumentsObject* object) { |
356 arguments_object_.set(object); | 364 arguments_object_.set(object); |
357 } | 365 } |
358 | 366 |
359 int GetMaximumValueID() const { return values_.length(); } | 367 int GetMaximumValueID() const { return values_.length(); } |
360 int GetNextBlockID() { return next_block_id_++; } | 368 int GetNextBlockID() { return next_block_id_++; } |
361 int GetNextValueID(HValue* value) { | 369 int GetNextValueID(HValue* value) { |
| 370 ASSERT(!disallow_adding_new_values_); |
362 values_.Add(value, zone()); | 371 values_.Add(value, zone()); |
363 return values_.length() - 1; | 372 return values_.length() - 1; |
364 } | 373 } |
365 HValue* LookupValue(int id) const { | 374 HValue* LookupValue(int id) const { |
366 if (id >= 0 && id < values_.length()) return values_[id]; | 375 if (id >= 0 && id < values_.length()) return values_[id]; |
367 return NULL; | 376 return NULL; |
368 } | 377 } |
| 378 void DisallowAddingNewValues() { |
| 379 disallow_adding_new_values_ = true; |
| 380 } |
369 | 381 |
370 bool Optimize(BailoutReason* bailout_reason); | 382 bool Optimize(BailoutReason* bailout_reason); |
371 | 383 |
372 #ifdef DEBUG | 384 #ifdef DEBUG |
373 void Verify(bool do_full_verify) const; | 385 void Verify(bool do_full_verify) const; |
374 #endif | 386 #endif |
375 | 387 |
376 bool has_osr() { | 388 bool has_osr() { |
377 return osr_ != NULL; | 389 return osr_ != NULL; |
378 } | 390 } |
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470 void EliminateRedundantBoundsChecksUsingInductionVariables(); | 482 void EliminateRedundantBoundsChecksUsingInductionVariables(); |
471 | 483 |
472 Isolate* isolate_; | 484 Isolate* isolate_; |
473 int next_block_id_; | 485 int next_block_id_; |
474 HBasicBlock* entry_block_; | 486 HBasicBlock* entry_block_; |
475 HEnvironment* start_environment_; | 487 HEnvironment* start_environment_; |
476 ZoneList<HBasicBlock*> blocks_; | 488 ZoneList<HBasicBlock*> blocks_; |
477 ZoneList<HValue*> values_; | 489 ZoneList<HValue*> values_; |
478 ZoneList<HPhi*>* phi_list_; | 490 ZoneList<HPhi*>* phi_list_; |
479 ZoneList<HInstruction*>* uint32_instructions_; | 491 ZoneList<HInstruction*>* uint32_instructions_; |
480 SetOncePointer<HConstant> undefined_constant_; | 492 SetOncePointer<HConstant> constant_undefined_; |
481 SetOncePointer<HConstant> constant_0_; | 493 SetOncePointer<HConstant> constant_0_; |
482 SetOncePointer<HConstant> constant_1_; | 494 SetOncePointer<HConstant> constant_1_; |
483 SetOncePointer<HConstant> constant_minus1_; | 495 SetOncePointer<HConstant> constant_minus1_; |
484 SetOncePointer<HConstant> constant_true_; | 496 SetOncePointer<HConstant> constant_true_; |
485 SetOncePointer<HConstant> constant_false_; | 497 SetOncePointer<HConstant> constant_false_; |
486 SetOncePointer<HConstant> constant_the_hole_; | 498 SetOncePointer<HConstant> constant_the_hole_; |
487 SetOncePointer<HConstant> constant_null_; | 499 SetOncePointer<HConstant> constant_null_; |
488 SetOncePointer<HConstant> constant_invalid_context_; | 500 SetOncePointer<HConstant> constant_invalid_context_; |
489 SetOncePointer<HArgumentsObject> arguments_object_; | 501 SetOncePointer<HArgumentsObject> arguments_object_; |
490 | 502 |
491 HOsrBuilder* osr_; | 503 HOsrBuilder* osr_; |
492 | 504 |
493 CompilationInfo* info_; | 505 CompilationInfo* info_; |
494 Zone* zone_; | 506 Zone* zone_; |
495 | 507 |
496 bool is_recursive_; | 508 bool is_recursive_; |
497 bool use_optimistic_licm_; | 509 bool use_optimistic_licm_; |
498 bool has_soft_deoptimize_; | 510 bool has_soft_deoptimize_; |
499 bool depends_on_empty_array_proto_elements_; | 511 bool depends_on_empty_array_proto_elements_; |
500 int type_change_checksum_; | 512 int type_change_checksum_; |
501 int maximum_environment_size_; | 513 int maximum_environment_size_; |
502 int no_side_effects_scope_count_; | 514 int no_side_effects_scope_count_; |
| 515 bool disallow_adding_new_values_; |
503 | 516 |
504 DISALLOW_COPY_AND_ASSIGN(HGraph); | 517 DISALLOW_COPY_AND_ASSIGN(HGraph); |
505 }; | 518 }; |
506 | 519 |
507 | 520 |
508 Zone* HBasicBlock::zone() const { return graph_->zone(); } | 521 Zone* HBasicBlock::zone() const { return graph_->zone(); } |
509 | 522 |
510 | 523 |
511 // Type of stack frame an environment might refer to. | 524 // Type of stack frame an environment might refer to. |
512 enum FrameType { | 525 enum FrameType { |
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2301 } | 2314 } |
2302 | 2315 |
2303 private: | 2316 private: |
2304 HGraphBuilder* builder_; | 2317 HGraphBuilder* builder_; |
2305 }; | 2318 }; |
2306 | 2319 |
2307 | 2320 |
2308 } } // namespace v8::internal | 2321 } } // namespace v8::internal |
2309 | 2322 |
2310 #endif // V8_HYDROGEN_H_ | 2323 #endif // V8_HYDROGEN_H_ |
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