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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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331 // Returns false if there are phi-uses of the arguments-object | 331 // Returns false if there are phi-uses of the arguments-object |
332 // which are not supported by the optimizing compiler. | 332 // which are not supported by the optimizing compiler. |
333 bool CheckArgumentsPhiUses(); | 333 bool CheckArgumentsPhiUses(); |
334 | 334 |
335 // Returns false if there are phi-uses of an uninitialized const | 335 // Returns false if there are phi-uses of an uninitialized const |
336 // which are not supported by the optimizing compiler. | 336 // which are not supported by the optimizing compiler. |
337 bool CheckConstPhiUses(); | 337 bool CheckConstPhiUses(); |
338 | 338 |
339 void CollectPhis(); | 339 void CollectPhis(); |
340 | 340 |
341 void set_undefined_constant(HConstant* constant) { | 341 HConstant* GetConstantUndefined(); |
342 undefined_constant_.set(constant); | |
343 } | |
344 HConstant* GetConstantUndefined() const { return undefined_constant_.get(); } | |
345 HConstant* GetConstant0(); | 342 HConstant* GetConstant0(); |
346 HConstant* GetConstant1(); | 343 HConstant* GetConstant1(); |
347 HConstant* GetConstantMinus1(); | 344 HConstant* GetConstantMinus1(); |
348 HConstant* GetConstantTrue(); | 345 HConstant* GetConstantTrue(); |
349 HConstant* GetConstantFalse(); | 346 HConstant* GetConstantFalse(); |
350 HConstant* GetConstantHole(); | 347 HConstant* GetConstantHole(); |
351 HConstant* GetConstantNull(); | 348 HConstant* GetConstantNull(); |
352 HConstant* GetInvalidContext(); | 349 HConstant* GetInvalidContext(); |
353 | 350 |
354 bool IsStandardConstant(HConstant* constant); | 351 bool IsStandardConstant(HConstant* constant); |
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449 uint32_instructions_ = new(zone()) ZoneList<HInstruction*>(4, zone()); | 446 uint32_instructions_ = new(zone()) ZoneList<HInstruction*>(4, zone()); |
450 } | 447 } |
451 uint32_instructions_->Add(instr, zone()); | 448 uint32_instructions_->Add(instr, zone()); |
452 } | 449 } |
453 | 450 |
454 void IncrementInNoSideEffectsScope() { no_side_effects_scope_count_++; } | 451 void IncrementInNoSideEffectsScope() { no_side_effects_scope_count_++; } |
455 void DecrementInNoSideEffectsScope() { no_side_effects_scope_count_--; } | 452 void DecrementInNoSideEffectsScope() { no_side_effects_scope_count_--; } |
456 bool IsInsideNoSideEffectsScope() { return no_side_effects_scope_count_ > 0; } | 453 bool IsInsideNoSideEffectsScope() { return no_side_effects_scope_count_ > 0; } |
457 | 454 |
458 private: | 455 private: |
| 456 HConstant* ReinsertConstantIfNecessary(HConstant* constant); |
459 HConstant* GetConstant(SetOncePointer<HConstant>* pointer, | 457 HConstant* GetConstant(SetOncePointer<HConstant>* pointer, |
460 int32_t integer_value); | 458 int32_t integer_value); |
461 | 459 |
462 template<class Phase> | 460 template<class Phase> |
463 void Run() { | 461 void Run() { |
464 Phase phase(this); | 462 Phase phase(this); |
465 phase.Run(); | 463 phase.Run(); |
466 } | 464 } |
467 | 465 |
468 void EliminateRedundantBoundsChecksUsingInductionVariables(); | 466 void EliminateRedundantBoundsChecksUsingInductionVariables(); |
469 | 467 |
470 Isolate* isolate_; | 468 Isolate* isolate_; |
471 int next_block_id_; | 469 int next_block_id_; |
472 HBasicBlock* entry_block_; | 470 HBasicBlock* entry_block_; |
473 HEnvironment* start_environment_; | 471 HEnvironment* start_environment_; |
474 ZoneList<HBasicBlock*> blocks_; | 472 ZoneList<HBasicBlock*> blocks_; |
475 ZoneList<HValue*> values_; | 473 ZoneList<HValue*> values_; |
476 ZoneList<HPhi*>* phi_list_; | 474 ZoneList<HPhi*>* phi_list_; |
477 ZoneList<HInstruction*>* uint32_instructions_; | 475 ZoneList<HInstruction*>* uint32_instructions_; |
478 SetOncePointer<HConstant> undefined_constant_; | 476 SetOncePointer<HConstant> constant_undefined_; |
479 SetOncePointer<HConstant> constant_0_; | 477 SetOncePointer<HConstant> constant_0_; |
480 SetOncePointer<HConstant> constant_1_; | 478 SetOncePointer<HConstant> constant_1_; |
481 SetOncePointer<HConstant> constant_minus1_; | 479 SetOncePointer<HConstant> constant_minus1_; |
482 SetOncePointer<HConstant> constant_true_; | 480 SetOncePointer<HConstant> constant_true_; |
483 SetOncePointer<HConstant> constant_false_; | 481 SetOncePointer<HConstant> constant_false_; |
484 SetOncePointer<HConstant> constant_the_hole_; | 482 SetOncePointer<HConstant> constant_the_hole_; |
485 SetOncePointer<HConstant> constant_null_; | 483 SetOncePointer<HConstant> constant_null_; |
486 SetOncePointer<HConstant> constant_invalid_context_; | 484 SetOncePointer<HConstant> constant_invalid_context_; |
487 SetOncePointer<HArgumentsObject> arguments_object_; | 485 SetOncePointer<HArgumentsObject> arguments_object_; |
488 | 486 |
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2467 } | 2465 } |
2468 | 2466 |
2469 private: | 2467 private: |
2470 HGraphBuilder* builder_; | 2468 HGraphBuilder* builder_; |
2471 }; | 2469 }; |
2472 | 2470 |
2473 | 2471 |
2474 } } // namespace v8::internal | 2472 } } // namespace v8::internal |
2475 | 2473 |
2476 #endif // V8_HYDROGEN_H_ | 2474 #endif // V8_HYDROGEN_H_ |
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