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Issue 8872060: Reland 10216 - Optimize the equality check case of ICCompare stubs. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 9 years 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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876 heap->mark_compact_collector()->RecordRelocSlot(rinfo, object); 876 heap->mark_compact_collector()->RecordRelocSlot(rinfo, object);
877 MarkBit mark = Marking::MarkBitFrom(object); 877 MarkBit mark = Marking::MarkBitFrom(object);
878 heap->mark_compact_collector()->MarkObject(object, mark); 878 heap->mark_compact_collector()->MarkObject(object, mark);
879 } 879 }
880 880
881 static inline void VisitCodeTarget(Heap* heap, RelocInfo* rinfo) { 881 static inline void VisitCodeTarget(Heap* heap, RelocInfo* rinfo) {
882 ASSERT(RelocInfo::IsCodeTarget(rinfo->rmode())); 882 ASSERT(RelocInfo::IsCodeTarget(rinfo->rmode()));
883 Code* target = Code::GetCodeFromTargetAddress(rinfo->target_address()); 883 Code* target = Code::GetCodeFromTargetAddress(rinfo->target_address());
884 if (FLAG_cleanup_code_caches_at_gc && target->is_inline_cache_stub()) { 884 if (FLAG_cleanup_code_caches_at_gc && target->is_inline_cache_stub()) {
885 IC::Clear(rinfo->pc()); 885 IC::Clear(rinfo->pc());
886 // Please note targets for cleared inline cached do not have to be
887 // marked since they are contained in HEAP->non_monomorphic_cache().
888 target = Code::GetCodeFromTargetAddress(rinfo->target_address()); 886 target = Code::GetCodeFromTargetAddress(rinfo->target_address());
889 } else { 887 } else {
890 if (FLAG_cleanup_code_caches_at_gc && 888 if (FLAG_cleanup_code_caches_at_gc &&
891 target->kind() == Code::STUB && 889 target->kind() == Code::STUB &&
892 target->major_key() == CodeStub::CallFunction && 890 target->major_key() == CodeStub::CallFunction &&
893 target->has_function_cache()) { 891 target->has_function_cache()) {
894 CallFunctionStub::Clear(heap, rinfo->pc()); 892 CallFunctionStub::Clear(heap, rinfo->pc());
895 } 893 }
896 MarkBit code_mark = Marking::MarkBitFrom(target);
897 heap->mark_compact_collector()->MarkObject(target, code_mark);
898 } 894 }
895 MarkBit code_mark = Marking::MarkBitFrom(target);
896 heap->mark_compact_collector()->MarkObject(target, code_mark);
897
899 heap->mark_compact_collector()->RecordRelocSlot(rinfo, target); 898 heap->mark_compact_collector()->RecordRelocSlot(rinfo, target);
900 } 899 }
901 900
902 static inline void VisitDebugTarget(Heap* heap, RelocInfo* rinfo) { 901 static inline void VisitDebugTarget(Heap* heap, RelocInfo* rinfo) {
903 ASSERT((RelocInfo::IsJSReturn(rinfo->rmode()) && 902 ASSERT((RelocInfo::IsJSReturn(rinfo->rmode()) &&
904 rinfo->IsPatchedReturnSequence()) || 903 rinfo->IsPatchedReturnSequence()) ||
905 (RelocInfo::IsDebugBreakSlot(rinfo->rmode()) && 904 (RelocInfo::IsDebugBreakSlot(rinfo->rmode()) &&
906 rinfo->IsPatchedDebugBreakSlotSequence())); 905 rinfo->IsPatchedDebugBreakSlotSequence()));
907 Code* target = Code::GetCodeFromTargetAddress(rinfo->call_address()); 906 Code* target = Code::GetCodeFromTargetAddress(rinfo->call_address());
908 MarkBit code_mark = Marking::MarkBitFrom(target); 907 MarkBit code_mark = Marking::MarkBitFrom(target);
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3904 while (buffer != NULL) { 3903 while (buffer != NULL) {
3905 SlotsBuffer* next_buffer = buffer->next(); 3904 SlotsBuffer* next_buffer = buffer->next();
3906 DeallocateBuffer(buffer); 3905 DeallocateBuffer(buffer);
3907 buffer = next_buffer; 3906 buffer = next_buffer;
3908 } 3907 }
3909 *buffer_address = NULL; 3908 *buffer_address = NULL;
3910 } 3909 }
3911 3910
3912 3911
3913 } } // namespace v8::internal 3912 } } // namespace v8::internal
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