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| 1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef V8_IC_IC_COMPILER_H_ | 5 #ifndef V8_IC_IC_COMPILER_H_ |
| 6 #define V8_IC_IC_COMPILER_H_ | 6 #define V8_IC_IC_COMPILER_H_ |
| 7 | 7 |
| 8 #include "src/code-stubs.h" | |
| 9 #include "src/ic/access-compiler.h" | 8 #include "src/ic/access-compiler.h" |
| 10 #include "src/macro-assembler.h" | |
| 11 #include "src/objects.h" | |
| 12 | 9 |
| 13 namespace v8 { | 10 namespace v8 { |
| 14 namespace internal { | 11 namespace internal { |
| 15 | 12 |
| 16 | 13 |
| 17 class CallOptimization; | |
| 18 | |
| 19 | |
| 20 enum PrototypeCheckType { CHECK_ALL_MAPS, SKIP_RECEIVER }; | |
| 21 enum IcCheckType { ELEMENT, PROPERTY }; | 14 enum IcCheckType { ELEMENT, PROPERTY }; |
| 22 | 15 |
| 23 | 16 |
| 24 class PropertyICCompiler : public PropertyAccessCompiler { | 17 class PropertyICCompiler : public PropertyAccessCompiler { |
| 25 public: | 18 public: |
| 26 // Finds the Code object stored in the Heap::non_monomorphic_cache(). | 19 // Finds the Code object stored in the Heap::non_monomorphic_cache(). |
| 27 static Code* FindPreMonomorphic(Isolate* isolate, Code::Kind kind, | 20 static Code* FindPreMonomorphic(Isolate* isolate, Code::Kind kind, |
| 28 ExtraICState extra_ic_state); | 21 ExtraICState extra_ic_state); |
| 29 | 22 |
| 30 // Named | 23 // Named |
| (...skipping 89 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 120 return code->ic_state() == MONOMORPHIC | 113 return code->ic_state() == MONOMORPHIC |
| 121 ? Logger::KEYED_STORE_IC_TAG | 114 ? Logger::KEYED_STORE_IC_TAG |
| 122 : Logger::KEYED_STORE_POLYMORPHIC_IC_TAG; | 115 : Logger::KEYED_STORE_POLYMORPHIC_IC_TAG; |
| 123 } | 116 } |
| 124 } | 117 } |
| 125 | 118 |
| 126 const ExtraICState extra_ic_state_; | 119 const ExtraICState extra_ic_state_; |
| 127 }; | 120 }; |
| 128 | 121 |
| 129 | 122 |
| 130 class PropertyHandlerCompiler : public PropertyAccessCompiler { | |
| 131 public: | |
| 132 static Handle<Code> Find(Handle<Name> name, Handle<Map> map, Code::Kind kind, | |
| 133 CacheHolderFlag cache_holder, Code::StubType type); | |
| 134 | |
| 135 protected: | |
| 136 PropertyHandlerCompiler(Isolate* isolate, Code::Kind kind, | |
| 137 Handle<HeapType> type, Handle<JSObject> holder, | |
| 138 CacheHolderFlag cache_holder) | |
| 139 : PropertyAccessCompiler(isolate, kind, cache_holder), | |
| 140 type_(type), | |
| 141 holder_(holder) {} | |
| 142 | |
| 143 virtual ~PropertyHandlerCompiler() {} | |
| 144 | |
| 145 virtual Register FrontendHeader(Register object_reg, Handle<Name> name, | |
| 146 Label* miss) { | |
| 147 UNREACHABLE(); | |
| 148 return receiver(); | |
| 149 } | |
| 150 | |
| 151 virtual void FrontendFooter(Handle<Name> name, Label* miss) { UNREACHABLE(); } | |
| 152 | |
| 153 Register Frontend(Register object_reg, Handle<Name> name); | |
| 154 void NonexistentFrontendHeader(Handle<Name> name, Label* miss, | |
| 155 Register scratch1, Register scratch2); | |
| 156 | |
| 157 // TODO(verwaest): Make non-static. | |
| 158 static void GenerateFastApiCall(MacroAssembler* masm, | |
| 159 const CallOptimization& optimization, | |
| 160 Handle<Map> receiver_map, Register receiver, | |
| 161 Register scratch, bool is_store, int argc, | |
| 162 Register* values); | |
| 163 | |
| 164 // Helper function used to check that the dictionary doesn't contain | |
| 165 // the property. This function may return false negatives, so miss_label | |
| 166 // must always call a backup property check that is complete. | |
| 167 // This function is safe to call if the receiver has fast properties. | |
| 168 // Name must be unique and receiver must be a heap object. | |
| 169 static void GenerateDictionaryNegativeLookup(MacroAssembler* masm, | |
| 170 Label* miss_label, | |
| 171 Register receiver, | |
| 172 Handle<Name> name, Register r0, | |
| 173 Register r1); | |
| 174 | |
| 175 // Generate code to check that a global property cell is empty. Create | |
| 176 // the property cell at compilation time if no cell exists for the | |
| 177 // property. | |
| 178 static void GenerateCheckPropertyCell(MacroAssembler* masm, | |
| 179 Handle<JSGlobalObject> global, | |
| 180 Handle<Name> name, Register scratch, | |
| 181 Label* miss); | |
| 182 | |
| 183 // Generates code that verifies that the property holder has not changed | |
| 184 // (checking maps of objects in the prototype chain for fast and global | |
| 185 // objects or doing negative lookup for slow objects, ensures that the | |
| 186 // property cells for global objects are still empty) and checks that the map | |
| 187 // of the holder has not changed. If necessary the function also generates | |
| 188 // code for security check in case of global object holders. Helps to make | |
| 189 // sure that the current IC is still valid. | |
| 190 // | |
| 191 // The scratch and holder registers are always clobbered, but the object | |
| 192 // register is only clobbered if it the same as the holder register. The | |
| 193 // function returns a register containing the holder - either object_reg or | |
| 194 // holder_reg. | |
| 195 Register CheckPrototypes(Register object_reg, Register holder_reg, | |
| 196 Register scratch1, Register scratch2, | |
| 197 Handle<Name> name, Label* miss, | |
| 198 PrototypeCheckType check = CHECK_ALL_MAPS); | |
| 199 | |
| 200 Handle<Code> GetCode(Code::Kind kind, Code::StubType type, Handle<Name> name); | |
| 201 void set_type_for_object(Handle<Object> object) { | |
| 202 type_ = IC::CurrentTypeOf(object, isolate()); | |
| 203 } | |
| 204 void set_holder(Handle<JSObject> holder) { holder_ = holder; } | |
| 205 Handle<HeapType> type() const { return type_; } | |
| 206 Handle<JSObject> holder() const { return holder_; } | |
| 207 | |
| 208 private: | |
| 209 Handle<HeapType> type_; | |
| 210 Handle<JSObject> holder_; | |
| 211 }; | |
| 212 | |
| 213 | |
| 214 class NamedLoadHandlerCompiler : public PropertyHandlerCompiler { | |
| 215 public: | |
| 216 NamedLoadHandlerCompiler(Isolate* isolate, Handle<HeapType> type, | |
| 217 Handle<JSObject> holder, | |
| 218 CacheHolderFlag cache_holder) | |
| 219 : PropertyHandlerCompiler(isolate, Code::LOAD_IC, type, holder, | |
| 220 cache_holder) {} | |
| 221 | |
| 222 virtual ~NamedLoadHandlerCompiler() {} | |
| 223 | |
| 224 Handle<Code> CompileLoadField(Handle<Name> name, FieldIndex index); | |
| 225 | |
| 226 Handle<Code> CompileLoadCallback(Handle<Name> name, | |
| 227 Handle<ExecutableAccessorInfo> callback); | |
| 228 | |
| 229 Handle<Code> CompileLoadCallback(Handle<Name> name, | |
| 230 const CallOptimization& call_optimization); | |
| 231 | |
| 232 Handle<Code> CompileLoadConstant(Handle<Name> name, int constant_index); | |
| 233 | |
| 234 // The LookupIterator is used to perform a lookup behind the interceptor. If | |
| 235 // the iterator points to a LookupIterator::PROPERTY, its access will be | |
| 236 // inlined. | |
| 237 Handle<Code> CompileLoadInterceptor(LookupIterator* it); | |
| 238 | |
| 239 Handle<Code> CompileLoadViaGetter(Handle<Name> name, | |
| 240 Handle<JSFunction> getter); | |
| 241 | |
| 242 Handle<Code> CompileLoadGlobal(Handle<PropertyCell> cell, Handle<Name> name, | |
| 243 bool is_configurable); | |
| 244 | |
| 245 // Static interface | |
| 246 static Handle<Code> ComputeLoadNonexistent(Handle<Name> name, | |
| 247 Handle<HeapType> type); | |
| 248 | |
| 249 static void GenerateLoadViaGetter(MacroAssembler* masm, Handle<HeapType> type, | |
| 250 Register receiver, | |
| 251 Handle<JSFunction> getter); | |
| 252 | |
| 253 static void GenerateLoadViaGetterForDeopt(MacroAssembler* masm) { | |
| 254 GenerateLoadViaGetter(masm, Handle<HeapType>::null(), no_reg, | |
| 255 Handle<JSFunction>()); | |
| 256 } | |
| 257 | |
| 258 static void GenerateLoadFunctionPrototype(MacroAssembler* masm, | |
| 259 Register receiver, | |
| 260 Register scratch1, | |
| 261 Register scratch2, | |
| 262 Label* miss_label); | |
| 263 | |
| 264 // These constants describe the structure of the interceptor arguments on the | |
| 265 // stack. The arguments are pushed by the (platform-specific) | |
| 266 // PushInterceptorArguments and read by LoadPropertyWithInterceptorOnly and | |
| 267 // LoadWithInterceptor. | |
| 268 static const int kInterceptorArgsNameIndex = 0; | |
| 269 static const int kInterceptorArgsInfoIndex = 1; | |
| 270 static const int kInterceptorArgsThisIndex = 2; | |
| 271 static const int kInterceptorArgsHolderIndex = 3; | |
| 272 static const int kInterceptorArgsLength = 4; | |
| 273 | |
| 274 protected: | |
| 275 virtual Register FrontendHeader(Register object_reg, Handle<Name> name, | |
| 276 Label* miss); | |
| 277 | |
| 278 virtual void FrontendFooter(Handle<Name> name, Label* miss); | |
| 279 | |
| 280 private: | |
| 281 Handle<Code> CompileLoadNonexistent(Handle<Name> name); | |
| 282 void GenerateLoadConstant(Handle<Object> value); | |
| 283 void GenerateLoadCallback(Register reg, | |
| 284 Handle<ExecutableAccessorInfo> callback); | |
| 285 void GenerateLoadCallback(const CallOptimization& call_optimization, | |
| 286 Handle<Map> receiver_map); | |
| 287 void GenerateLoadInterceptor(Register holder_reg); | |
| 288 void GenerateLoadInterceptorWithFollowup(LookupIterator* it, | |
| 289 Register holder_reg); | |
| 290 void GenerateLoadPostInterceptor(LookupIterator* it, Register reg); | |
| 291 | |
| 292 // Generates prototype loading code that uses the objects from the | |
| 293 // context we were in when this function was called. If the context | |
| 294 // has changed, a jump to miss is performed. This ties the generated | |
| 295 // code to a particular context and so must not be used in cases | |
| 296 // where the generated code is not allowed to have references to | |
| 297 // objects from a context. | |
| 298 static void GenerateDirectLoadGlobalFunctionPrototype(MacroAssembler* masm, | |
| 299 int index, | |
| 300 Register prototype, | |
| 301 Label* miss); | |
| 302 | |
| 303 | |
| 304 Register scratch4() { return registers_[5]; } | |
| 305 }; | |
| 306 | |
| 307 | |
| 308 class NamedStoreHandlerCompiler : public PropertyHandlerCompiler { | |
| 309 public: | |
| 310 explicit NamedStoreHandlerCompiler(Isolate* isolate, Handle<HeapType> type, | |
| 311 Handle<JSObject> holder) | |
| 312 : PropertyHandlerCompiler(isolate, Code::STORE_IC, type, holder, | |
| 313 kCacheOnReceiver) {} | |
| 314 | |
| 315 virtual ~NamedStoreHandlerCompiler() {} | |
| 316 | |
| 317 Handle<Code> CompileStoreTransition(Handle<Map> transition, | |
| 318 Handle<Name> name); | |
| 319 Handle<Code> CompileStoreField(LookupIterator* it); | |
| 320 Handle<Code> CompileStoreCallback(Handle<JSObject> object, Handle<Name> name, | |
| 321 Handle<ExecutableAccessorInfo> callback); | |
| 322 Handle<Code> CompileStoreCallback(Handle<JSObject> object, Handle<Name> name, | |
| 323 const CallOptimization& call_optimization); | |
| 324 Handle<Code> CompileStoreViaSetter(Handle<JSObject> object, Handle<Name> name, | |
| 325 Handle<JSFunction> setter); | |
| 326 Handle<Code> CompileStoreInterceptor(Handle<Name> name); | |
| 327 | |
| 328 static void GenerateStoreViaSetter(MacroAssembler* masm, | |
| 329 Handle<HeapType> type, Register receiver, | |
| 330 Handle<JSFunction> setter); | |
| 331 | |
| 332 static void GenerateStoreViaSetterForDeopt(MacroAssembler* masm) { | |
| 333 GenerateStoreViaSetter(masm, Handle<HeapType>::null(), no_reg, | |
| 334 Handle<JSFunction>()); | |
| 335 } | |
| 336 | |
| 337 protected: | |
| 338 virtual Register FrontendHeader(Register object_reg, Handle<Name> name, | |
| 339 Label* miss); | |
| 340 | |
| 341 virtual void FrontendFooter(Handle<Name> name, Label* miss); | |
| 342 void GenerateRestoreName(Label* label, Handle<Name> name); | |
| 343 | |
| 344 private: | |
| 345 void GenerateStoreTransition(Handle<Map> transition, Handle<Name> name, | |
| 346 Register receiver_reg, Register name_reg, | |
| 347 Register value_reg, Register scratch1, | |
| 348 Register scratch2, Register scratch3, | |
| 349 Label* miss_label, Label* slow); | |
| 350 | |
| 351 void GenerateStoreField(LookupIterator* lookup, Register value_reg, | |
| 352 Label* miss_label); | |
| 353 | |
| 354 static Builtins::Name SlowBuiltin(Code::Kind kind) { | |
| 355 switch (kind) { | |
| 356 case Code::STORE_IC: | |
| 357 return Builtins::kStoreIC_Slow; | |
| 358 case Code::KEYED_STORE_IC: | |
| 359 return Builtins::kKeyedStoreIC_Slow; | |
| 360 default: | |
| 361 UNREACHABLE(); | |
| 362 } | |
| 363 return Builtins::kStoreIC_Slow; | |
| 364 } | |
| 365 | |
| 366 static Register value(); | |
| 367 }; | |
| 368 | |
| 369 | |
| 370 class ElementHandlerCompiler : public PropertyHandlerCompiler { | |
| 371 public: | |
| 372 explicit ElementHandlerCompiler(Isolate* isolate) | |
| 373 : PropertyHandlerCompiler(isolate, Code::KEYED_LOAD_IC, | |
| 374 Handle<HeapType>::null(), | |
| 375 Handle<JSObject>::null(), kCacheOnReceiver) {} | |
| 376 | |
| 377 virtual ~ElementHandlerCompiler() {} | |
| 378 | |
| 379 void CompileElementHandlers(MapHandleList* receiver_maps, | |
| 380 CodeHandleList* handlers); | |
| 381 | |
| 382 static void GenerateLoadDictionaryElement(MacroAssembler* masm); | |
| 383 static void GenerateStoreDictionaryElement(MacroAssembler* masm); | |
| 384 }; | |
| 385 | |
| 386 | |
| 387 } | 123 } |
| 388 } // namespace v8::internal | 124 } // namespace v8::internal |
| 389 | 125 |
| 390 #endif // V8_IC_IC_COMPILER_H_ | 126 #endif // V8_IC_IC_COMPILER_H_ |
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