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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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443 | 443 |
444 explicit HEnvironment(Zone* zone); | 444 explicit HEnvironment(Zone* zone); |
445 | 445 |
446 HEnvironment* arguments_environment() { | 446 HEnvironment* arguments_environment() { |
447 return outer()->frame_type() == ARGUMENTS_ADAPTOR ? outer() : this; | 447 return outer()->frame_type() == ARGUMENTS_ADAPTOR ? outer() : this; |
448 } | 448 } |
449 | 449 |
450 // Simple accessors. | 450 // Simple accessors. |
451 Handle<JSFunction> closure() const { return closure_; } | 451 Handle<JSFunction> closure() const { return closure_; } |
452 const ZoneList<HValue*>* values() const { return &values_; } | 452 const ZoneList<HValue*>* values() const { return &values_; } |
453 const ZoneList<int>* assigned_variables() const { | 453 const GrowableBitVector* assigned_variables() const { |
454 return &assigned_variables_; | 454 return &assigned_variables_; |
455 } | 455 } |
456 FrameType frame_type() const { return frame_type_; } | 456 FrameType frame_type() const { return frame_type_; } |
457 int parameter_count() const { return parameter_count_; } | 457 int parameter_count() const { return parameter_count_; } |
458 int specials_count() const { return specials_count_; } | 458 int specials_count() const { return specials_count_; } |
459 int local_count() const { return local_count_; } | 459 int local_count() const { return local_count_; } |
460 HEnvironment* outer() const { return outer_; } | 460 HEnvironment* outer() const { return outer_; } |
461 int pop_count() const { return pop_count_; } | 461 int pop_count() const { return pop_count_; } |
462 int push_count() const { return push_count_; } | 462 int push_count() const { return push_count_; } |
463 | 463 |
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550 while (outer->frame_type() != JS_FUNCTION) outer = outer->outer_; | 550 while (outer->frame_type() != JS_FUNCTION) outer = outer->outer_; |
551 if (drop_extra) outer->Drop(1); | 551 if (drop_extra) outer->Drop(1); |
552 return outer; | 552 return outer; |
553 } | 553 } |
554 | 554 |
555 void AddIncomingEdge(HBasicBlock* block, HEnvironment* other); | 555 void AddIncomingEdge(HBasicBlock* block, HEnvironment* other); |
556 | 556 |
557 void ClearHistory() { | 557 void ClearHistory() { |
558 pop_count_ = 0; | 558 pop_count_ = 0; |
559 push_count_ = 0; | 559 push_count_ = 0; |
560 assigned_variables_.Rewind(0); | 560 assigned_variables_.Clear(); |
561 } | 561 } |
562 | 562 |
563 void SetValueAt(int index, HValue* value) { | 563 void SetValueAt(int index, HValue* value) { |
564 ASSERT(index < length()); | 564 ASSERT(index < length()); |
565 values_[index] = value; | 565 values_[index] = value; |
566 } | 566 } |
567 | 567 |
568 void PrintTo(StringStream* stream); | 568 void PrintTo(StringStream* stream); |
569 void PrintToStd(); | 569 void PrintToStd(); |
570 | 570 |
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599 ASSERT(variable->IsStackAllocated()); | 599 ASSERT(variable->IsStackAllocated()); |
600 int shift = variable->IsParameter() | 600 int shift = variable->IsParameter() |
601 ? 1 | 601 ? 1 |
602 : parameter_count_ + specials_count_; | 602 : parameter_count_ + specials_count_; |
603 return variable->index() + shift; | 603 return variable->index() + shift; |
604 } | 604 } |
605 | 605 |
606 Handle<JSFunction> closure_; | 606 Handle<JSFunction> closure_; |
607 // Value array [parameters] [specials] [locals] [temporaries]. | 607 // Value array [parameters] [specials] [locals] [temporaries]. |
608 ZoneList<HValue*> values_; | 608 ZoneList<HValue*> values_; |
609 ZoneList<int> assigned_variables_; | 609 GrowableBitVector assigned_variables_; |
610 FrameType frame_type_; | 610 FrameType frame_type_; |
611 int parameter_count_; | 611 int parameter_count_; |
612 int specials_count_; | 612 int specials_count_; |
613 int local_count_; | 613 int local_count_; |
614 HEnvironment* outer_; | 614 HEnvironment* outer_; |
615 HEnterInlined* entry_; | 615 HEnterInlined* entry_; |
616 int pop_count_; | 616 int pop_count_; |
617 int push_count_; | 617 int push_count_; |
618 BailoutId ast_id_; | 618 BailoutId ast_id_; |
619 Zone* zone_; | 619 Zone* zone_; |
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1555 const char* filename_; | 1555 const char* filename_; |
1556 HeapStringAllocator string_allocator_; | 1556 HeapStringAllocator string_allocator_; |
1557 StringStream trace_; | 1557 StringStream trace_; |
1558 int indent_; | 1558 int indent_; |
1559 }; | 1559 }; |
1560 | 1560 |
1561 | 1561 |
1562 } } // namespace v8::internal | 1562 } } // namespace v8::internal |
1563 | 1563 |
1564 #endif // V8_HYDROGEN_H_ | 1564 #endif // V8_HYDROGEN_H_ |
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