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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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| 103 // Clear the inline cache to initial state. | 103 // Clear the inline cache to initial state. |
| 104 static void Clear(Address address); | 104 static void Clear(Address address); |
| 105 | 105 |
| 106 // Computes the reloc info for this IC. This is a fairly expensive | 106 // Computes the reloc info for this IC. This is a fairly expensive |
| 107 // operation as it has to search through the heap to find the code | 107 // operation as it has to search through the heap to find the code |
| 108 // object that contains this IC site. | 108 // object that contains this IC site. |
| 109 RelocInfo::Mode ComputeMode(); | 109 RelocInfo::Mode ComputeMode(); |
| 110 | 110 |
| 111 // Returns if this IC is for contextual (no explicit receiver) | 111 // Returns if this IC is for contextual (no explicit receiver) |
| 112 // access to properties. | 112 // access to properties. |
| 113 bool IsContextual(Handle<Object> receiver) { | 113 bool IsUndeclaredGlobal(Handle<Object> receiver) { |
| 114 if (receiver->IsGlobalObject()) { | 114 if (receiver->IsGlobalObject()) { |
| 115 return SlowIsContextual(); | 115 return SlowIsUndeclaredGlobal(); |
| 116 } else { | 116 } else { |
| 117 ASSERT(!SlowIsContextual()); | 117 ASSERT(!SlowIsUndeclaredGlobal()); |
| 118 return false; | 118 return false; |
| 119 } | 119 } |
| 120 } | 120 } |
| 121 | 121 |
| 122 bool SlowIsContextual() { | 122 bool SlowIsUndeclaredGlobal() { |
| 123 return ComputeMode() == RelocInfo::CODE_TARGET_CONTEXT; | 123 return ComputeMode() == RelocInfo::CODE_TARGET_CONTEXT; |
| 124 } | 124 } |
| 125 | 125 |
| 126 // Determines which map must be used for keeping the code stub. | 126 // Determines which map must be used for keeping the code stub. |
| 127 // These methods should not be called with undefined or null. | 127 // These methods should not be called with undefined or null. |
| 128 static inline InlineCacheHolderFlag GetCodeCacheForObject(Object* object, | 128 static inline InlineCacheHolderFlag GetCodeCacheForObject(Object* object, |
| 129 JSObject* holder); | 129 JSObject* holder); |
| 130 static inline InlineCacheHolderFlag GetCodeCacheForObject(JSObject* object, | 130 static inline InlineCacheHolderFlag GetCodeCacheForObject(JSObject* object, |
| 131 JSObject* holder); | 131 JSObject* holder); |
| 132 static inline JSObject* GetCodeCacheHolder(Object* object, | 132 static inline JSObject* GetCodeCacheHolder(Object* object, |
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| 884 | 884 |
| 885 // Helper for BinaryOpIC and CompareIC. | 885 // Helper for BinaryOpIC and CompareIC. |
| 886 enum InlinedSmiCheck { ENABLE_INLINED_SMI_CHECK, DISABLE_INLINED_SMI_CHECK }; | 886 enum InlinedSmiCheck { ENABLE_INLINED_SMI_CHECK, DISABLE_INLINED_SMI_CHECK }; |
| 887 void PatchInlinedSmiCode(Address address, InlinedSmiCheck check); | 887 void PatchInlinedSmiCode(Address address, InlinedSmiCheck check); |
| 888 | 888 |
| 889 DECLARE_RUNTIME_FUNCTION(MaybeObject*, KeyedLoadIC_Miss); | 889 DECLARE_RUNTIME_FUNCTION(MaybeObject*, KeyedLoadIC_Miss); |
| 890 | 890 |
| 891 } } // namespace v8::internal | 891 } } // namespace v8::internal |
| 892 | 892 |
| 893 #endif // V8_IC_H_ | 893 #endif // V8_IC_H_ |
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