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| 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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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| 216 }; | 216 }; |
| 217 | 217 |
| 218 | 218 |
| 219 class LoadIC: public IC { | 219 class LoadIC: public IC { |
| 220 public: | 220 public: |
| 221 LoadIC() : IC(NO_EXTRA_FRAME) { ASSERT(target()->is_load_stub()); } | 221 LoadIC() : IC(NO_EXTRA_FRAME) { ASSERT(target()->is_load_stub()); } |
| 222 | 222 |
| 223 Object* Load(State state, Handle<Object> object, Handle<String> name); | 223 Object* Load(State state, Handle<Object> object, Handle<String> name); |
| 224 | 224 |
| 225 // Code generator routines. | 225 // Code generator routines. |
| 226 static void GenerateInitialize(MacroAssembler* masm); | 226 static void GenerateInitialize(MacroAssembler* masm) { GenerateMiss(masm); } |
| 227 static void GeneratePreMonomorphic(MacroAssembler* masm); | 227 static void GeneratePreMonomorphic(MacroAssembler* masm) { |
| 228 GenerateMiss(masm); |
| 229 } |
| 228 static void GenerateMiss(MacroAssembler* masm); | 230 static void GenerateMiss(MacroAssembler* masm); |
| 229 static void GenerateMegamorphic(MacroAssembler* masm); | 231 static void GenerateMegamorphic(MacroAssembler* masm); |
| 230 static void GenerateNormal(MacroAssembler* masm); | 232 static void GenerateNormal(MacroAssembler* masm); |
| 231 | 233 |
| 232 // Specialized code generator routines. | 234 // Specialized code generator routines. |
| 233 static void GenerateArrayLength(MacroAssembler* masm); | 235 static void GenerateArrayLength(MacroAssembler* masm); |
| 234 static void GenerateStringLength(MacroAssembler* masm); | 236 static void GenerateStringLength(MacroAssembler* masm); |
| 235 static void GenerateFunctionPrototype(MacroAssembler* masm); | 237 static void GenerateFunctionPrototype(MacroAssembler* masm); |
| 236 | 238 |
| 237 // The offset from the inlined patch site to the start of the | 239 // The offset from the inlined patch site to the start of the |
| 238 // inlined load instruction. It is architecture-dependent, and not | 240 // inlined load instruction. It is architecture-dependent, and not |
| 239 // used on ARM. | 241 // used on ARM. |
| 240 static const int kOffsetToLoadInstruction; | 242 static const int kOffsetToLoadInstruction; |
| 241 | 243 |
| 242 private: | 244 private: |
| 243 static void Generate(MacroAssembler* masm, const ExternalReference& f); | |
| 244 | |
| 245 // Update the inline cache and the global stub cache based on the | 245 // Update the inline cache and the global stub cache based on the |
| 246 // lookup result. | 246 // lookup result. |
| 247 void UpdateCaches(LookupResult* lookup, | 247 void UpdateCaches(LookupResult* lookup, |
| 248 State state, | 248 State state, |
| 249 Handle<Object> object, | 249 Handle<Object> object, |
| 250 Handle<String> name); | 250 Handle<String> name); |
| 251 | 251 |
| 252 // Stub accessors. | 252 // Stub accessors. |
| 253 static Code* megamorphic_stub() { | 253 static Code* megamorphic_stub() { |
| 254 return Builtins::builtin(Builtins::LoadIC_Megamorphic); | 254 return Builtins::builtin(Builtins::LoadIC_Megamorphic); |
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| 272 | 272 |
| 273 | 273 |
| 274 class KeyedLoadIC: public IC { | 274 class KeyedLoadIC: public IC { |
| 275 public: | 275 public: |
| 276 KeyedLoadIC() : IC(NO_EXTRA_FRAME) { ASSERT(target()->is_keyed_load_stub()); } | 276 KeyedLoadIC() : IC(NO_EXTRA_FRAME) { ASSERT(target()->is_keyed_load_stub()); } |
| 277 | 277 |
| 278 Object* Load(State state, Handle<Object> object, Handle<Object> key); | 278 Object* Load(State state, Handle<Object> object, Handle<Object> key); |
| 279 | 279 |
| 280 // Code generator routines. | 280 // Code generator routines. |
| 281 static void GenerateMiss(MacroAssembler* masm); | 281 static void GenerateMiss(MacroAssembler* masm); |
| 282 static void GenerateInitialize(MacroAssembler* masm); | 282 static void GenerateRuntimeGetProperty(MacroAssembler* masm); |
| 283 static void GeneratePreMonomorphic(MacroAssembler* masm); | 283 static void GenerateInitialize(MacroAssembler* masm) { GenerateMiss(masm); } |
| 284 static void GeneratePreMonomorphic(MacroAssembler* masm) { |
| 285 GenerateMiss(masm); |
| 286 } |
| 284 static void GenerateGeneric(MacroAssembler* masm); | 287 static void GenerateGeneric(MacroAssembler* masm); |
| 285 static void GenerateString(MacroAssembler* masm); | 288 static void GenerateString(MacroAssembler* masm); |
| 286 | 289 |
| 287 // Generators for external array types. See objects.h. | 290 // Generators for external array types. See objects.h. |
| 288 // These are similar to the generic IC; they optimize the case of | 291 // These are similar to the generic IC; they optimize the case of |
| 289 // operating upon external array types but fall back to the runtime | 292 // operating upon external array types but fall back to the runtime |
| 290 // for all other types. | 293 // for all other types. |
| 291 static void GenerateExternalArray(MacroAssembler* masm, | 294 static void GenerateExternalArray(MacroAssembler* masm, |
| 292 ExternalArrayType array_type); | 295 ExternalArrayType array_type); |
| 293 | 296 |
| 294 // Clear the use of the inlined version. | 297 // Clear the use of the inlined version. |
| 295 static void ClearInlinedVersion(Address address); | 298 static void ClearInlinedVersion(Address address); |
| 296 | 299 |
| 297 private: | 300 private: |
| 298 // Bit mask to be tested against bit field for the cases when | 301 // Bit mask to be tested against bit field for the cases when |
| 299 // generic stub should go into slow case. | 302 // generic stub should go into slow case. |
| 300 // Access check is necessary explicitly since generic stub does not perform | 303 // Access check is necessary explicitly since generic stub does not perform |
| 301 // map checks. | 304 // map checks. |
| 302 static const int kSlowCaseBitFieldMask = | 305 static const int kSlowCaseBitFieldMask = |
| 303 (1 << Map::kIsAccessCheckNeeded) | (1 << Map::kHasIndexedInterceptor); | 306 (1 << Map::kIsAccessCheckNeeded) | (1 << Map::kHasIndexedInterceptor); |
| 304 | 307 |
| 305 static void Generate(MacroAssembler* masm, const ExternalReference& f); | |
| 306 | |
| 307 // Update the inline cache. | 308 // Update the inline cache. |
| 308 void UpdateCaches(LookupResult* lookup, | 309 void UpdateCaches(LookupResult* lookup, |
| 309 State state, | 310 State state, |
| 310 Handle<Object> object, | 311 Handle<Object> object, |
| 311 Handle<String> name); | 312 Handle<String> name); |
| 312 | 313 |
| 313 // Stub accessors. | 314 // Stub accessors. |
| 314 static Code* initialize_stub() { | 315 static Code* initialize_stub() { |
| 315 return Builtins::builtin(Builtins::KeyedLoadIC_Initialize); | 316 return Builtins::builtin(Builtins::KeyedLoadIC_Initialize); |
| 316 } | 317 } |
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| 377 class KeyedStoreIC: public IC { | 378 class KeyedStoreIC: public IC { |
| 378 public: | 379 public: |
| 379 KeyedStoreIC() : IC(NO_EXTRA_FRAME) { } | 380 KeyedStoreIC() : IC(NO_EXTRA_FRAME) { } |
| 380 | 381 |
| 381 Object* Store(State state, | 382 Object* Store(State state, |
| 382 Handle<Object> object, | 383 Handle<Object> object, |
| 383 Handle<Object> name, | 384 Handle<Object> name, |
| 384 Handle<Object> value); | 385 Handle<Object> value); |
| 385 | 386 |
| 386 // Code generators for stub routines. Only called once at startup. | 387 // Code generators for stub routines. Only called once at startup. |
| 387 static void GenerateInitialize(MacroAssembler* masm); | 388 static void GenerateInitialize(MacroAssembler* masm) { GenerateMiss(masm); } |
| 388 static void GenerateMiss(MacroAssembler* masm); | 389 static void GenerateMiss(MacroAssembler* masm); |
| 390 static void GenerateRuntimeSetProperty(MacroAssembler* masm); |
| 389 static void GenerateGeneric(MacroAssembler* masm); | 391 static void GenerateGeneric(MacroAssembler* masm); |
| 390 static void GenerateExtendStorage(MacroAssembler* masm); | 392 static void GenerateExtendStorage(MacroAssembler* masm); |
| 391 | 393 |
| 392 // Generators for external array types. See objects.h. | 394 // Generators for external array types. See objects.h. |
| 393 // These are similar to the generic IC; they optimize the case of | 395 // These are similar to the generic IC; they optimize the case of |
| 394 // operating upon external array types but fall back to the runtime | 396 // operating upon external array types but fall back to the runtime |
| 395 // for all other types. | 397 // for all other types. |
| 396 static void GenerateExternalArray(MacroAssembler* masm, | 398 static void GenerateExternalArray(MacroAssembler* masm, |
| 397 ExternalArrayType array_type); | 399 ExternalArrayType array_type); |
| 398 | 400 |
| 399 // Clear the inlined version so the IC is always hit. | 401 // Clear the inlined version so the IC is always hit. |
| 400 static void ClearInlinedVersion(Address address); | 402 static void ClearInlinedVersion(Address address); |
| 401 | 403 |
| 402 // Restore the inlined version so the fast case can get hit. | 404 // Restore the inlined version so the fast case can get hit. |
| 403 static void RestoreInlinedVersion(Address address); | 405 static void RestoreInlinedVersion(Address address); |
| 404 | 406 |
| 405 private: | 407 private: |
| 406 static void Generate(MacroAssembler* masm, const ExternalReference& f); | |
| 407 | |
| 408 // Update the inline cache. | 408 // Update the inline cache. |
| 409 void UpdateCaches(LookupResult* lookup, | 409 void UpdateCaches(LookupResult* lookup, |
| 410 State state, | 410 State state, |
| 411 Handle<JSObject> receiver, | 411 Handle<JSObject> receiver, |
| 412 Handle<String> name, | 412 Handle<String> name, |
| 413 Handle<Object> value); | 413 Handle<Object> value); |
| 414 | 414 |
| 415 // Stub accessors. | 415 // Stub accessors. |
| 416 static Code* initialize_stub() { | 416 static Code* initialize_stub() { |
| 417 return Builtins::builtin(Builtins::KeyedStoreIC_Initialize); | 417 return Builtins::builtin(Builtins::KeyedStoreIC_Initialize); |
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| 434 // The map is the new map that the inlined code should check against. | 434 // The map is the new map that the inlined code should check against. |
| 435 static bool PatchInlinedStore(Address address, Object* map); | 435 static bool PatchInlinedStore(Address address, Object* map); |
| 436 | 436 |
| 437 friend class IC; | 437 friend class IC; |
| 438 }; | 438 }; |
| 439 | 439 |
| 440 | 440 |
| 441 } } // namespace v8::internal | 441 } } // namespace v8::internal |
| 442 | 442 |
| 443 #endif // V8_IC_H_ | 443 #endif // V8_IC_H_ |
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