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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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181 | 181 |
182 virtual InlineCacheState GetICState() { | 182 virtual InlineCacheState GetICState() { |
183 return UNINITIALIZED; | 183 return UNINITIALIZED; |
184 } | 184 } |
185 virtual ExtraICState GetExtraICState() { | 185 virtual ExtraICState GetExtraICState() { |
186 return kNoExtraICState; | 186 return kNoExtraICState; |
187 } | 187 } |
188 virtual Code::StubType GetStubType() { | 188 virtual Code::StubType GetStubType() { |
189 return Code::NORMAL; | 189 return Code::NORMAL; |
190 } | 190 } |
191 virtual Code::Kind GetHandlerKind() { | |
192 return Code::STUB; | |
193 } | |
194 | 191 |
195 virtual void PrintName(StringStream* stream); | 192 virtual void PrintName(StringStream* stream); |
196 | 193 |
197 // Returns a name for logging/debugging purposes. | 194 // Returns a name for logging/debugging purposes. |
198 SmartArrayPointer<const char> GetName(); | 195 SmartArrayPointer<const char> GetName(); |
199 | 196 |
200 protected: | 197 protected: |
201 static bool CanUseFPRegisters(); | 198 static bool CanUseFPRegisters(); |
202 | 199 |
203 // Generates the assembler code for the stub. | 200 // Generates the assembler code for the stub. |
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878 | 875 |
879 protected: | 876 protected: |
880 class KindBits: public BitField<Code::Kind, 0, 4> {}; | 877 class KindBits: public BitField<Code::Kind, 0, 4> {}; |
881 virtual Code::Kind kind() const = 0; | 878 virtual Code::Kind kind() const = 0; |
882 }; | 879 }; |
883 | 880 |
884 | 881 |
885 class HandlerStub: public HICStub { | 882 class HandlerStub: public HICStub { |
886 public: | 883 public: |
887 virtual Code::Kind GetCodeKind() const { return Code::HANDLER; } | 884 virtual Code::Kind GetCodeKind() const { return Code::HANDLER; } |
888 virtual Code::Kind GetHandlerKind() { return kind(); } | 885 virtual ExtraICState GetExtraICState() { |
| 886 return Code::HandlerKindField::encode(kind()); |
| 887 } |
889 | 888 |
890 protected: | 889 protected: |
891 HandlerStub() : HICStub() { } | 890 HandlerStub() : HICStub() { } |
892 virtual int NotMissMinorKey() { return bit_field_; } | 891 virtual int NotMissMinorKey() { return bit_field_; } |
893 int bit_field_; | 892 int bit_field_; |
894 }; | 893 }; |
895 | 894 |
896 | 895 |
897 class LoadFieldStub: public HandlerStub { | 896 class LoadFieldStub: public HandlerStub { |
898 public: | 897 public: |
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974 } | 973 } |
975 | 974 |
976 virtual Code::Kind kind() const { return Code::STORE_IC; } | 975 virtual Code::Kind kind() const { return Code::STORE_IC; } |
977 | 976 |
978 virtual Handle<Code> GenerateCode(Isolate* isolate); | 977 virtual Handle<Code> GenerateCode(Isolate* isolate); |
979 | 978 |
980 virtual void InitializeInterfaceDescriptor( | 979 virtual void InitializeInterfaceDescriptor( |
981 Isolate* isolate, | 980 Isolate* isolate, |
982 CodeStubInterfaceDescriptor* descriptor); | 981 CodeStubInterfaceDescriptor* descriptor); |
983 | 982 |
984 virtual ExtraICState GetExtraICState() { return bit_field_; } | |
985 | |
986 bool is_constant() { | 983 bool is_constant() { |
987 return IsConstantBits::decode(bit_field_); | 984 return IsConstantBits::decode(bit_field_); |
988 } | 985 } |
989 void set_is_constant(bool value) { | 986 void set_is_constant(bool value) { |
990 bit_field_ = IsConstantBits::update(bit_field_, value); | 987 bit_field_ = IsConstantBits::update(bit_field_, value); |
991 } | 988 } |
992 | 989 |
993 Representation representation() { | 990 Representation representation() { |
994 return Representation::FromKind(RepresentationBits::decode(bit_field_)); | 991 return Representation::FromKind(RepresentationBits::decode(bit_field_)); |
995 } | 992 } |
996 void set_representation(Representation r) { | 993 void set_representation(Representation r) { |
997 bit_field_ = RepresentationBits::update(bit_field_, r.kind()); | 994 bit_field_ = RepresentationBits::update(bit_field_, r.kind()); |
998 } | 995 } |
999 | 996 |
1000 private: | 997 private: |
1001 virtual int NotMissMinorKey() { return GetExtraICState(); } | |
1002 Major MajorKey() { return StoreGlobal; } | 998 Major MajorKey() { return StoreGlobal; } |
1003 | 999 |
1004 class IsConstantBits: public BitField<bool, 0, 1> {}; | 1000 class IsConstantBits: public BitField<bool, 0, 1> {}; |
1005 class RepresentationBits: public BitField<Representation::Kind, 1, 8> {}; | 1001 class RepresentationBits: public BitField<Representation::Kind, 1, 8> {}; |
1006 | 1002 |
1007 int bit_field_; | |
1008 | |
1009 DISALLOW_COPY_AND_ASSIGN(StoreGlobalStub); | 1003 DISALLOW_COPY_AND_ASSIGN(StoreGlobalStub); |
1010 }; | 1004 }; |
1011 | 1005 |
1012 | 1006 |
1013 class CallApiFunctionStub : public PlatformCodeStub { | 1007 class CallApiFunctionStub : public PlatformCodeStub { |
1014 public: | 1008 public: |
1015 CallApiFunctionStub(bool restore_context, | 1009 CallApiFunctionStub(bool restore_context, |
1016 bool call_data_undefined, | 1010 bool call_data_undefined, |
1017 int argc) { | 1011 int argc) { |
1018 bit_field_ = | 1012 bit_field_ = |
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2476 | 2470 |
2477 | 2471 |
2478 class CallDescriptors { | 2472 class CallDescriptors { |
2479 public: | 2473 public: |
2480 static void InitializeForIsolate(Isolate* isolate); | 2474 static void InitializeForIsolate(Isolate* isolate); |
2481 }; | 2475 }; |
2482 | 2476 |
2483 } } // namespace v8::internal | 2477 } } // namespace v8::internal |
2484 | 2478 |
2485 #endif // V8_CODE_STUBS_H_ | 2479 #endif // V8_CODE_STUBS_H_ |
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