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Issue 8103: - Fixed performance regression caused by ComputeContextSlotReceiver.... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 12 years, 2 months ago
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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 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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734 } else { 734 } else {
735 // Avoid underflow. 735 // Avoid underflow.
736 if (amount >= 0) { 736 if (amount >= 0) {
737 amount_of_external_allocated_memory_ = amount; 737 amount_of_external_allocated_memory_ = amount;
738 } 738 }
739 } 739 }
740 ASSERT(amount_of_external_allocated_memory_ >= 0); 740 ASSERT(amount_of_external_allocated_memory_ >= 0);
741 return amount_of_external_allocated_memory_; 741 return amount_of_external_allocated_memory_;
742 } 742 }
743 743
744 // Allocate unitialized fixed array (pretenure == NON_TENURE).
745 static Object* AllocateRawFixedArray(int length);
746
744 private: 747 private:
745 static int semispace_size_; 748 static int semispace_size_;
746 static int initial_semispace_size_; 749 static int initial_semispace_size_;
747 static int young_generation_size_; 750 static int young_generation_size_;
748 static int old_generation_size_; 751 static int old_generation_size_;
749 752
750 static int new_space_growth_limit_; 753 static int new_space_growth_limit_;
751 static int scavenge_count_; 754 static int scavenge_count_;
752 755
753 static const int kMaxMapSpaceSize = 8*MB; 756 static const int kMaxMapSpaceSize = 8*MB;
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828 static Object* SmiOrNumberFromDouble(double value, 831 static Object* SmiOrNumberFromDouble(double value,
829 bool new_object, 832 bool new_object,
830 PretenureFlag pretenure = NOT_TENURED); 833 PretenureFlag pretenure = NOT_TENURED);
831 834
832 // Allocate an uninitialized object in map space. The behavior is identical 835 // Allocate an uninitialized object in map space. The behavior is identical
833 // to Heap::AllocateRaw(size_in_bytes, MAP_SPACE), except that (a) it doesn't 836 // to Heap::AllocateRaw(size_in_bytes, MAP_SPACE), except that (a) it doesn't
834 // have to test the allocation space argument and (b) can reduce code size 837 // have to test the allocation space argument and (b) can reduce code size
835 // (since both AllocateRaw and AllocateRawMap are inlined). 838 // (since both AllocateRaw and AllocateRawMap are inlined).
836 static inline Object* AllocateRawMap(int size_in_bytes); 839 static inline Object* AllocateRawMap(int size_in_bytes);
837 840
838 // Allocate unitialized fixed array (pretenure == NON_TENURE).
839 static Object* AllocateRawFixedArray(int length);
840
841 // Initializes a JSObject based on its map. 841 // Initializes a JSObject based on its map.
842 static void InitializeJSObjectFromMap(JSObject* obj, 842 static void InitializeJSObjectFromMap(JSObject* obj,
843 FixedArray* properties, 843 FixedArray* properties,
844 Map* map); 844 Map* map);
845 845
846 static bool CreateInitialMaps(); 846 static bool CreateInitialMaps();
847 static bool CreateInitialObjects(); 847 static bool CreateInitialObjects();
848 static void CreateFixedStubs(); 848 static void CreateFixedStubs();
849 static Object* CreateOddball(Map* map, 849 static Object* CreateOddball(Map* map,
850 const char* to_string, 850 const char* to_string,
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1198 int marked_count_; 1198 int marked_count_;
1199 1199
1200 // The count from the end of the previous full GC. Will be zero if there 1200 // The count from the end of the previous full GC. Will be zero if there
1201 // was no previous full GC. 1201 // was no previous full GC.
1202 int previous_marked_count_; 1202 int previous_marked_count_;
1203 }; 1203 };
1204 1204
1205 } } // namespace v8::internal 1205 } } // namespace v8::internal
1206 1206
1207 #endif // V8_HEAP_H_ 1207 #endif // V8_HEAP_H_
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