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Issue 11117020: Merged r12504, r12531, r12562, r12563, r12655 into 3.13 branch. (Closed) Base URL: https://v8.googlecode.com/svn/branches/3.13
Patch Set: Created 8 years, 2 months ago
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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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72 // Convert target address to the code object. Code::GetCodeFromTargetAddress 72 // Convert target address to the code object. Code::GetCodeFromTargetAddress
73 // is safe for use during GC where the map might be marked. 73 // is safe for use during GC where the map might be marked.
74 Code* result = Code::GetCodeFromTargetAddress(target); 74 Code* result = Code::GetCodeFromTargetAddress(target);
75 ASSERT(result->is_inline_cache_stub()); 75 ASSERT(result->is_inline_cache_stub());
76 return result; 76 return result;
77 } 77 }
78 78
79 79
80 void IC::SetTargetAtAddress(Address address, Code* target) { 80 void IC::SetTargetAtAddress(Address address, Code* target) {
81 ASSERT(target->is_inline_cache_stub() || target->is_compare_ic_stub()); 81 ASSERT(target->is_inline_cache_stub() || target->is_compare_ic_stub());
82 Heap* heap = target->GetHeap();
82 Code* old_target = GetTargetAtAddress(address); 83 Code* old_target = GetTargetAtAddress(address);
83 #ifdef DEBUG 84 #ifdef DEBUG
84 // STORE_IC and KEYED_STORE_IC use Code::extra_ic_state() to mark 85 // STORE_IC and KEYED_STORE_IC use Code::extra_ic_state() to mark
85 // ICs as strict mode. The strict-ness of the IC must be preserved. 86 // ICs as strict mode. The strict-ness of the IC must be preserved.
86 if (old_target->kind() == Code::STORE_IC || 87 if (old_target->kind() == Code::STORE_IC ||
87 old_target->kind() == Code::KEYED_STORE_IC) { 88 old_target->kind() == Code::KEYED_STORE_IC) {
88 ASSERT(Code::GetStrictMode(old_target->extra_ic_state()) == 89 ASSERT(Code::GetStrictMode(old_target->extra_ic_state()) ==
89 Code::GetStrictMode(target->extra_ic_state())); 90 Code::GetStrictMode(target->extra_ic_state()));
90 } 91 }
91 #endif 92 #endif
92 Assembler::set_target_address_at(address, target->instruction_start()); 93 Assembler::set_target_address_at(address, target->instruction_start());
93 target->GetHeap()->incremental_marking()->RecordCodeTargetPatch(address, 94 if (heap->gc_state() == Heap::MARK_COMPACT) {
94 target); 95 heap->mark_compact_collector()->RecordCodeTargetPatch(address, target);
96 } else {
97 heap->incremental_marking()->RecordCodeTargetPatch(address, target);
98 }
95 PostPatching(address, target, old_target); 99 PostPatching(address, target, old_target);
96 } 100 }
97 101
98 102
99 InlineCacheHolderFlag IC::GetCodeCacheForObject(Object* object, 103 InlineCacheHolderFlag IC::GetCodeCacheForObject(Object* object,
100 JSObject* holder) { 104 JSObject* holder) {
101 if (object->IsJSObject()) { 105 if (object->IsJSObject()) {
102 return GetCodeCacheForObject(JSObject::cast(object), holder); 106 return GetCodeCacheForObject(JSObject::cast(object), holder);
103 } 107 }
104 // If the object is a value, we use the prototype map for the cache. 108 // If the object is a value, we use the prototype map for the cache.
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127 JSObject* IC::GetCodeCacheHolder(Object* object, InlineCacheHolderFlag holder) { 131 JSObject* IC::GetCodeCacheHolder(Object* object, InlineCacheHolderFlag holder) {
128 Object* map_owner = (holder == OWN_MAP ? object : object->GetPrototype()); 132 Object* map_owner = (holder == OWN_MAP ? object : object->GetPrototype());
129 ASSERT(map_owner->IsJSObject()); 133 ASSERT(map_owner->IsJSObject());
130 return JSObject::cast(map_owner); 134 return JSObject::cast(map_owner);
131 } 135 }
132 136
133 137
134 } } // namespace v8::internal 138 } } // namespace v8::internal
135 139
136 #endif // V8_IC_INL_H_ 140 #endif // V8_IC_INL_H_
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