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Side by Side Diff: src/ic-inl.h

Issue 11035053: Rollback trunk to bleeding_edge revision 12525 (Closed) Base URL: https://v8.googlecode.com/svn/trunk
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();
83 Code* old_target = GetTargetAtAddress(address); 82 Code* old_target = GetTargetAtAddress(address);
84 #ifdef DEBUG 83 #ifdef DEBUG
85 // STORE_IC and KEYED_STORE_IC use Code::extra_ic_state() to mark 84 // STORE_IC and KEYED_STORE_IC use Code::extra_ic_state() to mark
86 // ICs as strict mode. The strict-ness of the IC must be preserved. 85 // ICs as strict mode. The strict-ness of the IC must be preserved.
87 if (old_target->kind() == Code::STORE_IC || 86 if (old_target->kind() == Code::STORE_IC ||
88 old_target->kind() == Code::KEYED_STORE_IC) { 87 old_target->kind() == Code::KEYED_STORE_IC) {
89 ASSERT(Code::GetStrictMode(old_target->extra_ic_state()) == 88 ASSERT(Code::GetStrictMode(old_target->extra_ic_state()) ==
90 Code::GetStrictMode(target->extra_ic_state())); 89 Code::GetStrictMode(target->extra_ic_state()));
91 } 90 }
92 #endif 91 #endif
93 Assembler::set_target_address_at(address, target->instruction_start()); 92 Assembler::set_target_address_at(address, target->instruction_start());
94 if (heap->gc_state() == Heap::MARK_COMPACT && 93 target->GetHeap()->incremental_marking()->RecordCodeTargetPatch(address,
95 heap->mark_compact_collector()->is_compacting()) { 94 target);
96 Code* host = heap->isolate()->inner_pointer_to_code_cache()->
97 GcSafeFindCodeForInnerPointer(address);
98 RelocInfo rinfo(address, RelocInfo::CODE_TARGET, 0, host);
99 heap->mark_compact_collector()->RecordRelocSlot(&rinfo, target);
100 } else {
101 heap->incremental_marking()->RecordCodeTargetPatch(address, target);
102 }
103 PostPatching(address, target, old_target); 95 PostPatching(address, target, old_target);
104 } 96 }
105 97
106 98
107 InlineCacheHolderFlag IC::GetCodeCacheForObject(Object* object, 99 InlineCacheHolderFlag IC::GetCodeCacheForObject(Object* object,
108 JSObject* holder) { 100 JSObject* holder) {
109 if (object->IsJSObject()) { 101 if (object->IsJSObject()) {
110 return GetCodeCacheForObject(JSObject::cast(object), holder); 102 return GetCodeCacheForObject(JSObject::cast(object), holder);
111 } 103 }
112 // If the object is a value, we use the prototype map for the cache. 104 // If the object is a value, we use the prototype map for the cache.
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135 JSObject* IC::GetCodeCacheHolder(Object* object, InlineCacheHolderFlag holder) { 127 JSObject* IC::GetCodeCacheHolder(Object* object, InlineCacheHolderFlag holder) {
136 Object* map_owner = (holder == OWN_MAP ? object : object->GetPrototype()); 128 Object* map_owner = (holder == OWN_MAP ? object : object->GetPrototype());
137 ASSERT(map_owner->IsJSObject()); 129 ASSERT(map_owner->IsJSObject());
138 return JSObject::cast(map_owner); 130 return JSObject::cast(map_owner);
139 } 131 }
140 132
141 133
142 } } // namespace v8::internal 134 } } // namespace v8::internal
143 135
144 #endif // V8_IC_INL_H_ 136 #endif // V8_IC_INL_H_
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