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Issue 1607433005: [interpreter] Implement exception handler table building. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Added moar tests. Created 4 years, 11 months ago
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1 // Copyright 2015 the V8 project authors. All rights reserved. 1 // Copyright 2015 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef V8_OBJECTS_H_ 5 #ifndef V8_OBJECTS_H_
6 #define V8_OBJECTS_H_ 6 #define V8_OBJECTS_H_
7 7
8 #include <iosfwd> 8 #include <iosfwd>
9 9
10 #include "src/allocation.h" 10 #include "src/allocation.h"
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4643 return deopt_points * 2; 4643 return deopt_points * 2;
4644 } 4644 }
4645 4645
4646 // Allocates a DeoptimizationOutputData. 4646 // Allocates a DeoptimizationOutputData.
4647 static Handle<DeoptimizationOutputData> New(Isolate* isolate, 4647 static Handle<DeoptimizationOutputData> New(Isolate* isolate,
4648 int number_of_deopt_points, 4648 int number_of_deopt_points,
4649 PretenureFlag pretenure); 4649 PretenureFlag pretenure);
4650 4650
4651 DECLARE_CAST(DeoptimizationOutputData) 4651 DECLARE_CAST(DeoptimizationOutputData)
4652 4652
4653 #if defined(OBJECT_PRINT) || defined(ENABLE_DISASSEMBLER) 4653 #ifdef ENABLE_DISASSEMBLER
4654 void DeoptimizationOutputDataPrint(std::ostream& os); // NOLINT 4654 void DeoptimizationOutputDataPrint(std::ostream& os); // NOLINT
4655 #endif 4655 #endif
4656 }; 4656 };
4657 4657
4658 4658
4659 // A literals array contains the literals for a JSFunction. It also holds 4659 // A literals array contains the literals for a JSFunction. It also holds
4660 // the type feedback vector. 4660 // the type feedback vector.
4661 class LiteralsArray : public FixedArray { 4661 class LiteralsArray : public FixedArray {
4662 public: 4662 public:
4663 static const int kVectorIndex = 0; 4663 static const int kVectorIndex = 0;
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4721 4721
4722 // Lookup handler in a table based on return addresses. 4722 // Lookup handler in a table based on return addresses.
4723 int LookupReturn(int pc_offset, CatchPrediction* prediction); 4723 int LookupReturn(int pc_offset, CatchPrediction* prediction);
4724 4724
4725 // Returns the required length of the underlying fixed array. 4725 // Returns the required length of the underlying fixed array.
4726 static int LengthForRange(int entries) { return entries * kRangeEntrySize; } 4726 static int LengthForRange(int entries) { return entries * kRangeEntrySize; }
4727 static int LengthForReturn(int entries) { return entries * kReturnEntrySize; } 4727 static int LengthForReturn(int entries) { return entries * kReturnEntrySize; }
4728 4728
4729 DECLARE_CAST(HandlerTable) 4729 DECLARE_CAST(HandlerTable)
4730 4730
4731 #if defined(OBJECT_PRINT) || defined(ENABLE_DISASSEMBLER) 4731 #ifdef ENABLE_DISASSEMBLER
4732 void HandlerTableRangePrint(std::ostream& os); // NOLINT 4732 void HandlerTableRangePrint(std::ostream& os); // NOLINT
4733 void HandlerTableReturnPrint(std::ostream& os); // NOLINT 4733 void HandlerTableReturnPrint(std::ostream& os); // NOLINT
4734 #endif 4734 #endif
4735 4735
4736 private: 4736 private:
4737 // Layout description for handler table based on ranges. 4737 // Layout description for handler table based on ranges.
4738 static const int kRangeStartIndex = 0; 4738 static const int kRangeStartIndex = 0;
4739 static const int kRangeEndIndex = 1; 4739 static const int kRangeEndIndex = 1;
4740 static const int kRangeHandlerIndex = 2; 4740 static const int kRangeHandlerIndex = 2;
4741 static const int kRangeDepthIndex = 3; 4741 static const int kRangeDepthIndex = 3;
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10730 } 10730 }
10731 return value; 10731 return value;
10732 } 10732 }
10733 }; 10733 };
10734 10734
10735 10735
10736 } // NOLINT, false-positive due to second-order macros. 10736 } // NOLINT, false-positive due to second-order macros.
10737 } // NOLINT, false-positive due to second-order macros. 10737 } // NOLINT, false-positive due to second-order macros.
10738 10738
10739 #endif // V8_OBJECTS_H_ 10739 #endif // V8_OBJECTS_H_
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