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Issue 8342037: Switch UnreachableObjectsFilter to use Marking instead of InstrusiveMarking. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 9 years, 2 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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3147 3147
3148 // Shorten string and fill 3148 // Shorten string and fill
3149 int string_size = ResultSeqString::SizeFor(position); 3149 int string_size = ResultSeqString::SizeFor(position);
3150 int allocated_string_size = ResultSeqString::SizeFor(new_length); 3150 int allocated_string_size = ResultSeqString::SizeFor(new_length);
3151 int delta = allocated_string_size - string_size; 3151 int delta = allocated_string_size - string_size;
3152 3152
3153 answer->set_length(position); 3153 answer->set_length(position);
3154 if (delta == 0) return *answer; 3154 if (delta == 0) return *answer;
3155 3155
3156 Address end_of_string = answer->address() + string_size; 3156 Address end_of_string = answer->address() + string_size;
3157 isolate->heap()->CreateFillerObjectAt(end_of_string, delta); 3157 Heap* heap = isolate->heap();
3158 if (Marking::IsBlack(Marking::MarkBitFrom(*answer))) { 3158 heap->CreateFillerObjectAt(end_of_string, delta);
3159 if (MarkCompactCollector::IsLiveBytesUpdateRequired(*answer)) {
3159 MemoryChunk::IncrementLiveBytes(answer->address(), -delta); 3160 MemoryChunk::IncrementLiveBytes(answer->address(), -delta);
3160 } 3161 }
3161 3162
3162 return *answer; 3163 return *answer;
3163 } 3164 }
3164 3165
3165 3166
3166 RUNTIME_FUNCTION(MaybeObject*, Runtime_StringReplaceRegExpWithString) { 3167 RUNTIME_FUNCTION(MaybeObject*, Runtime_StringReplaceRegExpWithString) {
3167 ASSERT(args.length() == 4); 3168 ASSERT(args.length() == 4);
3168 3169
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13412 } else { 13413 } else {
13413 // Handle last resort GC and make sure to allow future allocations 13414 // Handle last resort GC and make sure to allow future allocations
13414 // to grow the heap without causing GCs (if possible). 13415 // to grow the heap without causing GCs (if possible).
13415 isolate->counters()->gc_last_resort_from_js()->Increment(); 13416 isolate->counters()->gc_last_resort_from_js()->Increment();
13416 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags); 13417 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags);
13417 } 13418 }
13418 } 13419 }
13419 13420
13420 13421
13421 } } // namespace v8::internal 13422 } } // namespace v8::internal
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