Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 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 |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef V8_CALL_INTERFACE_DESCRIPTOR_H_ |
| 6 | #define V8_CALL_INTERFACE_DESCRIPTOR_H_ |
| 7 | |
| 8 | #include "src/assembler.h" |
| 9 | #include "src/macro-assembler.h" |
| 10 | |
| 11 | namespace v8 { |
| 12 | namespace internal { |
| 13 | |
| 14 | class PlatformInterfaceDescriptor; |
| 15 | |
| 16 | #define INTERFACE_DESCRIPTOR_LIST(V) \ |
| 17 | V(Load) \ |
| 18 | V(Store) \ |
| 19 | V(ElementTransitionAndStore) \ |
| 20 | V(Instanceof) \ |
| 21 | V(VectorLoadICTrampoline) \ |
| 22 | V(VectorLoadIC) \ |
| 23 | V(FastNewClosure) \ |
| 24 | V(FastNewContext) \ |
| 25 | V(ToNumber) \ |
| 26 | V(NumberToString) \ |
| 27 | V(FastCloneShallowArray) \ |
| 28 | V(FastCloneShallowObject) \ |
| 29 | V(CreateAllocationSite) \ |
| 30 | V(CallFunction) \ |
| 31 | V(CallFunctionWithFeedback) \ |
| 32 | V(CallConstruct) \ |
| 33 | V(RegExpConstructResult) \ |
| 34 | V(TransitionElementsKind) \ |
| 35 | V(ArrayConstructorConstantArgCount) \ |
| 36 | V(ArrayConstructor) \ |
| 37 | V(InternalArrayConstructorConstantArgCount) \ |
| 38 | V(InternalArrayConstructor) \ |
| 39 | V(CompareNil) \ |
| 40 | V(ToBoolean) \ |
| 41 | V(BinaryOp) \ |
| 42 | V(BinaryOpWithAllocationSite) \ |
| 43 | V(StringAdd) \ |
| 44 | V(Keyed) \ |
| 45 | V(Named) \ |
| 46 | V(CallHandler) \ |
| 47 | V(ArgumentAdaptor) \ |
| 48 | V(ApiGetter) \ |
| 49 | V(ApiFunction) \ |
| 50 | V(ArgumentsAccessRead) \ |
| 51 | V(StoreArrayLiteralElement) \ |
| 52 | V(MathPowTagged) \ |
| 53 | V(MathPowInteger) \ |
| 54 | V(ContextOnly) |
| 55 | |
| 56 | |
| 57 | class CallInterfaceDescriptorData { |
| 58 | public: |
| 59 | CallInterfaceDescriptorData() : register_param_count_(-1) {} |
| 60 | |
| 61 | // A copy of the passed in registers and param_representations is made |
| 62 | // and owned by the CallInterfaceDescriptorData. |
| 63 | |
| 64 | // TODO(mvstanton): Instead of taking parallel arrays register and |
| 65 | // param_representations, how about a struct that puts the representation |
| 66 | // and register side by side (eg, RegRep(r1, Representation::Tagged()). |
| 67 | // The same should go for the CodeStubDescriptor class. |
| 68 | void Initialize(int register_parameter_count, Register* registers, |
| 69 | Representation* param_representations, |
| 70 | PlatformInterfaceDescriptor* platform_descriptor = NULL); |
| 71 | |
| 72 | bool IsInitialized() const { return register_param_count_ >= 0; } |
| 73 | |
| 74 | int register_param_count() const { return register_param_count_; } |
| 75 | Register register_param(int index) const { return register_params_[index]; } |
| 76 | Register* register_params() const { return register_params_.get(); } |
| 77 | Representation register_param_representation(int index) const { |
| 78 | return register_param_representations_[index]; |
| 79 | } |
| 80 | Representation* register_param_representations() const { |
| 81 | return register_param_representations_.get(); |
| 82 | } |
| 83 | PlatformInterfaceDescriptor* platform_specific_descriptor() const { |
| 84 | return platform_specific_descriptor_; |
| 85 | } |
| 86 | |
| 87 | private: |
| 88 | int register_param_count_; |
| 89 | |
| 90 | // The Register params are allocated dynamically by the |
| 91 | // InterfaceDescriptor, and freed on destruction. This is because static |
| 92 | // arrays of Registers cause creation of runtime static initializers |
| 93 | // which we don't want. |
| 94 | SmartArrayPointer<Register> register_params_; |
| 95 | // Specifies Representations for the stub's parameter. Points to an array of |
| 96 | // Representations of the same length of the numbers of parameters to the |
| 97 | // stub, or if NULL (the default value), Representation of each parameter |
| 98 | // assumed to be Tagged(). |
| 99 | SmartArrayPointer<Representation> register_param_representations_; |
| 100 | |
| 101 | PlatformInterfaceDescriptor* platform_specific_descriptor_; |
| 102 | |
| 103 | DISALLOW_COPY_AND_ASSIGN(CallInterfaceDescriptorData); |
| 104 | }; |
| 105 | |
| 106 | |
| 107 | class CallDescriptors { |
| 108 | public: |
| 109 | enum Key { |
| 110 | #define DEF_ENUM(name) name, |
| 111 | INTERFACE_DESCRIPTOR_LIST(DEF_ENUM) |
| 112 | #undef DEF_ENUM |
| 113 | NUMBER_OF_DESCRIPTORS |
| 114 | }; |
| 115 | }; |
| 116 | |
| 117 | |
| 118 | class CallInterfaceDescriptor { |
| 119 | public: |
| 120 | CallInterfaceDescriptor() : data_(NULL) {} |
| 121 | |
| 122 | CallInterfaceDescriptor(Isolate* isolate, CallDescriptors::Key key) |
| 123 | : data_(isolate->call_descriptor_data(key)) {} |
| 124 | |
| 125 | int GetEnvironmentLength() const { return data()->register_param_count(); } |
| 126 | |
| 127 | int GetRegisterParameterCount() const { |
| 128 | return data()->register_param_count(); |
| 129 | } |
| 130 | |
| 131 | Register GetParameterRegister(int index) const { |
| 132 | return data()->register_param(index); |
| 133 | } |
| 134 | |
| 135 | Representation GetParameterRepresentation(int index) const { |
| 136 | DCHECK(index < data()->register_param_count()); |
| 137 | if (data()->register_param_representations() == NULL) { |
| 138 | return Representation::Tagged(); |
| 139 | } |
| 140 | |
| 141 | return data()->register_param_representation(index); |
| 142 | } |
| 143 | |
| 144 | // "Environment" versions of parameter functions. The first register |
| 145 | // parameter (context) is not included. |
| 146 | int GetEnvironmentParameterCount() const { |
| 147 | return GetEnvironmentLength() - 1; |
| 148 | } |
| 149 | |
| 150 | Register GetEnvironmentParameterRegister(int index) const { |
| 151 | return GetParameterRegister(index + 1); |
| 152 | } |
| 153 | |
| 154 | Representation GetEnvironmentParameterRepresentation(int index) const { |
| 155 | return GetParameterRepresentation(index + 1); |
| 156 | } |
| 157 | |
| 158 | // Some platforms have extra information to associate with the descriptor. |
| 159 | PlatformInterfaceDescriptor* platform_specific_descriptor() const { |
| 160 | return data()->platform_specific_descriptor(); |
| 161 | } |
| 162 | |
| 163 | static const Register ContextRegister(); |
| 164 | |
| 165 | const char* DebugName(Isolate* isolate); |
| 166 | |
| 167 | protected: |
| 168 | const CallInterfaceDescriptorData* data() const { return data_; } |
| 169 | |
| 170 | private: |
| 171 | const CallInterfaceDescriptorData* data_; |
| 172 | }; |
| 173 | |
| 174 | |
| 175 | #define DECLARE_DESCRIPTOR(name, base) \ |
| 176 | explicit name(Isolate* isolate) : base(isolate, key()) { \ |
| 177 | if (!data()->IsInitialized()) \ |
| 178 | Initialize(isolate->call_descriptor_data(key())); \ |
| 179 | } \ |
| 180 | \ |
| 181 | protected: \ |
| 182 | void Initialize(CallInterfaceDescriptorData* data); \ |
| 183 | name(Isolate* isolate, CallDescriptors::Key key) : base(isolate, key) {} \ |
| 184 | \ |
| 185 | public: \ |
| 186 | static inline CallDescriptors::Key key(); |
| 187 | |
| 188 | |
| 189 | // LoadDescriptor is used by all stubs that implement Load/KeyedLoad ICs. |
| 190 | class LoadDescriptor : public CallInterfaceDescriptor { |
| 191 | public: |
| 192 | DECLARE_DESCRIPTOR(LoadDescriptor, CallInterfaceDescriptor) |
| 193 | |
| 194 | enum ParameterIndices { kReceiverIndex, kNameIndex }; |
| 195 | static const Register ReceiverRegister(); |
| 196 | static const Register NameRegister(); |
| 197 | }; |
| 198 | |
| 199 | |
| 200 | class StoreDescriptor : public CallInterfaceDescriptor { |
| 201 | public: |
| 202 | DECLARE_DESCRIPTOR(StoreDescriptor, CallInterfaceDescriptor) |
| 203 | |
| 204 | enum ParameterIndices { |
| 205 | kReceiverIndex, |
| 206 | kNameIndex, |
| 207 | kValueIndex, |
| 208 | kParameterCount |
| 209 | }; |
| 210 | static const Register ReceiverRegister(); |
| 211 | static const Register NameRegister(); |
| 212 | static const Register ValueRegister(); |
| 213 | }; |
| 214 | |
| 215 | |
| 216 | class ElementTransitionAndStoreDescriptor : public StoreDescriptor { |
| 217 | public: |
| 218 | DECLARE_DESCRIPTOR(ElementTransitionAndStoreDescriptor, StoreDescriptor) |
| 219 | |
| 220 | static const Register MapRegister(); |
| 221 | }; |
| 222 | |
| 223 | |
| 224 | class InstanceofDescriptor : public CallInterfaceDescriptor { |
| 225 | public: |
| 226 | DECLARE_DESCRIPTOR(InstanceofDescriptor, CallInterfaceDescriptor) |
| 227 | |
| 228 | enum ParameterIndices { kLeftIndex, kRightIndex, kParameterCount }; |
| 229 | static const Register left(); |
| 230 | static const Register right(); |
| 231 | }; |
| 232 | |
| 233 | |
| 234 | class VectorLoadICTrampolineDescriptor : public LoadDescriptor { |
| 235 | public: |
| 236 | DECLARE_DESCRIPTOR(VectorLoadICTrampolineDescriptor, LoadDescriptor) |
| 237 | |
| 238 | enum ParameterIndices { kReceiverIndex, kNameIndex, kSlotIndex }; |
| 239 | |
| 240 | static const Register SlotRegister(); |
| 241 | }; |
| 242 | |
| 243 | |
| 244 | class VectorLoadICDescriptor : public VectorLoadICTrampolineDescriptor { |
| 245 | public: |
| 246 | DECLARE_DESCRIPTOR(VectorLoadICDescriptor, VectorLoadICTrampolineDescriptor) |
| 247 | |
| 248 | enum ParameterIndices { |
| 249 | kReceiverIndex, |
| 250 | kNameIndex, |
| 251 | kSlotIndex, |
| 252 | kVectorIndex |
| 253 | }; |
| 254 | |
| 255 | static const Register VectorRegister(); |
| 256 | }; |
| 257 | |
| 258 | |
| 259 | class FastNewClosureDescriptor : public CallInterfaceDescriptor { |
| 260 | public: |
| 261 | DECLARE_DESCRIPTOR(FastNewClosureDescriptor, CallInterfaceDescriptor) |
| 262 | }; |
| 263 | |
| 264 | |
| 265 | class FastNewContextDescriptor : public CallInterfaceDescriptor { |
| 266 | public: |
| 267 | DECLARE_DESCRIPTOR(FastNewContextDescriptor, CallInterfaceDescriptor) |
| 268 | }; |
| 269 | |
| 270 | |
| 271 | class ToNumberDescriptor : public CallInterfaceDescriptor { |
| 272 | public: |
| 273 | DECLARE_DESCRIPTOR(ToNumberDescriptor, CallInterfaceDescriptor) |
| 274 | }; |
| 275 | |
| 276 | |
| 277 | class NumberToStringDescriptor : public CallInterfaceDescriptor { |
| 278 | public: |
| 279 | DECLARE_DESCRIPTOR(NumberToStringDescriptor, CallInterfaceDescriptor) |
| 280 | }; |
| 281 | |
| 282 | |
| 283 | class FastCloneShallowArrayDescriptor : public CallInterfaceDescriptor { |
| 284 | public: |
| 285 | DECLARE_DESCRIPTOR(FastCloneShallowArrayDescriptor, CallInterfaceDescriptor) |
| 286 | }; |
| 287 | |
| 288 | |
| 289 | class FastCloneShallowObjectDescriptor : public CallInterfaceDescriptor { |
| 290 | public: |
| 291 | DECLARE_DESCRIPTOR(FastCloneShallowObjectDescriptor, CallInterfaceDescriptor) |
| 292 | }; |
| 293 | |
| 294 | |
| 295 | class CreateAllocationSiteDescriptor : public CallInterfaceDescriptor { |
| 296 | public: |
| 297 | DECLARE_DESCRIPTOR(CreateAllocationSiteDescriptor, CallInterfaceDescriptor) |
| 298 | }; |
| 299 | |
| 300 | |
| 301 | class CallFunctionDescriptor : public CallInterfaceDescriptor { |
| 302 | public: |
| 303 | DECLARE_DESCRIPTOR(CallFunctionDescriptor, CallInterfaceDescriptor) |
| 304 | }; |
| 305 | |
| 306 | |
| 307 | class CallFunctionWithFeedbackDescriptor : public CallInterfaceDescriptor { |
| 308 | public: |
| 309 | DECLARE_DESCRIPTOR(CallFunctionWithFeedbackDescriptor, |
| 310 | CallInterfaceDescriptor) |
| 311 | }; |
| 312 | |
| 313 | |
| 314 | class CallConstructDescriptor : public CallInterfaceDescriptor { |
| 315 | public: |
| 316 | DECLARE_DESCRIPTOR(CallConstructDescriptor, CallInterfaceDescriptor) |
| 317 | }; |
| 318 | |
| 319 | |
| 320 | class RegExpConstructResultDescriptor : public CallInterfaceDescriptor { |
| 321 | public: |
| 322 | DECLARE_DESCRIPTOR(RegExpConstructResultDescriptor, CallInterfaceDescriptor) |
| 323 | }; |
| 324 | |
| 325 | |
| 326 | class TransitionElementsKindDescriptor : public CallInterfaceDescriptor { |
| 327 | public: |
| 328 | DECLARE_DESCRIPTOR(TransitionElementsKindDescriptor, CallInterfaceDescriptor) |
| 329 | }; |
| 330 | |
| 331 | |
| 332 | class ArrayConstructorConstantArgCountDescriptor |
| 333 | : public CallInterfaceDescriptor { |
| 334 | public: |
| 335 | DECLARE_DESCRIPTOR(ArrayConstructorConstantArgCountDescriptor, |
| 336 | CallInterfaceDescriptor) |
| 337 | }; |
| 338 | |
| 339 | |
| 340 | class ArrayConstructorDescriptor : public CallInterfaceDescriptor { |
| 341 | public: |
| 342 | DECLARE_DESCRIPTOR(ArrayConstructorDescriptor, CallInterfaceDescriptor) |
| 343 | }; |
| 344 | |
| 345 | |
| 346 | class InternalArrayConstructorConstantArgCountDescriptor |
| 347 | : public CallInterfaceDescriptor { |
| 348 | public: |
| 349 | DECLARE_DESCRIPTOR(InternalArrayConstructorConstantArgCountDescriptor, |
| 350 | CallInterfaceDescriptor) |
| 351 | }; |
| 352 | |
| 353 | |
| 354 | class InternalArrayConstructorDescriptor : public CallInterfaceDescriptor { |
| 355 | public: |
| 356 | DECLARE_DESCRIPTOR(InternalArrayConstructorDescriptor, |
| 357 | CallInterfaceDescriptor) |
| 358 | }; |
| 359 | |
| 360 | |
| 361 | class CompareNilDescriptor : public CallInterfaceDescriptor { |
| 362 | public: |
| 363 | DECLARE_DESCRIPTOR(CompareNilDescriptor, CallInterfaceDescriptor) |
| 364 | }; |
| 365 | |
| 366 | |
| 367 | class ToBooleanDescriptor : public CallInterfaceDescriptor { |
| 368 | public: |
| 369 | DECLARE_DESCRIPTOR(ToBooleanDescriptor, CallInterfaceDescriptor) |
| 370 | }; |
| 371 | |
| 372 | |
| 373 | class BinaryOpDescriptor : public CallInterfaceDescriptor { |
| 374 | public: |
| 375 | DECLARE_DESCRIPTOR(BinaryOpDescriptor, CallInterfaceDescriptor) |
| 376 | }; |
| 377 | |
| 378 | |
| 379 | class BinaryOpWithAllocationSiteDescriptor : public CallInterfaceDescriptor { |
| 380 | public: |
| 381 | DECLARE_DESCRIPTOR(BinaryOpWithAllocationSiteDescriptor, |
| 382 | CallInterfaceDescriptor) |
| 383 | }; |
| 384 | |
| 385 | |
| 386 | class StringAddDescriptor : public CallInterfaceDescriptor { |
| 387 | public: |
| 388 | DECLARE_DESCRIPTOR(StringAddDescriptor, CallInterfaceDescriptor) |
| 389 | }; |
| 390 | |
| 391 | |
| 392 | class KeyedDescriptor : public CallInterfaceDescriptor { |
| 393 | public: |
| 394 | DECLARE_DESCRIPTOR(KeyedDescriptor, CallInterfaceDescriptor) |
| 395 | }; |
| 396 | |
| 397 | |
| 398 | class NamedDescriptor : public CallInterfaceDescriptor { |
| 399 | public: |
| 400 | DECLARE_DESCRIPTOR(NamedDescriptor, CallInterfaceDescriptor) |
| 401 | }; |
| 402 | |
| 403 | |
| 404 | class CallHandlerDescriptor : public CallInterfaceDescriptor { |
| 405 | public: |
| 406 | DECLARE_DESCRIPTOR(CallHandlerDescriptor, CallInterfaceDescriptor) |
| 407 | }; |
| 408 | |
| 409 | |
| 410 | class ArgumentAdaptorDescriptor : public CallInterfaceDescriptor { |
| 411 | public: |
| 412 | DECLARE_DESCRIPTOR(ArgumentAdaptorDescriptor, CallInterfaceDescriptor) |
| 413 | }; |
| 414 | |
| 415 | |
| 416 | class ApiFunctionDescriptor : public CallInterfaceDescriptor { |
| 417 | public: |
| 418 | DECLARE_DESCRIPTOR(ApiFunctionDescriptor, CallInterfaceDescriptor) |
| 419 | }; |
| 420 | |
| 421 | |
| 422 | class ApiGetterDescriptor : public CallInterfaceDescriptor { |
| 423 | public: |
| 424 | DECLARE_DESCRIPTOR(ApiGetterDescriptor, CallInterfaceDescriptor) |
| 425 | |
| 426 | static const Register function_address(); |
| 427 | }; |
| 428 | |
| 429 | |
| 430 | class ArgumentsAccessReadDescriptor : public CallInterfaceDescriptor { |
| 431 | public: |
| 432 | DECLARE_DESCRIPTOR(ArgumentsAccessReadDescriptor, CallInterfaceDescriptor) |
| 433 | |
| 434 | static const Register index(); |
| 435 | static const Register parameter_count(); |
| 436 | }; |
| 437 | |
| 438 | |
| 439 | class StoreArrayLiteralElementDescriptor : public CallInterfaceDescriptor { |
| 440 | public: |
| 441 | DECLARE_DESCRIPTOR(StoreArrayLiteralElementDescriptor, |
| 442 | CallInterfaceDescriptor) |
| 443 | }; |
| 444 | |
| 445 | |
| 446 | class MathPowTaggedDescriptor : public CallInterfaceDescriptor { |
| 447 | public: |
| 448 | DECLARE_DESCRIPTOR(MathPowTaggedDescriptor, CallInterfaceDescriptor) |
| 449 | |
| 450 | static const Register exponent(); |
| 451 | }; |
| 452 | |
| 453 | |
| 454 | class MathPowIntegerDescriptor : public CallInterfaceDescriptor { |
| 455 | public: |
| 456 | DECLARE_DESCRIPTOR(MathPowIntegerDescriptor, CallInterfaceDescriptor) |
| 457 | |
| 458 | static const Register exponent(); |
| 459 | }; |
| 460 | |
| 461 | |
| 462 | class ContextOnlyDescriptor : public CallInterfaceDescriptor { |
| 463 | public: |
| 464 | DECLARE_DESCRIPTOR(ContextOnlyDescriptor, CallInterfaceDescriptor) |
| 465 | }; |
| 466 | |
| 467 | #undef DECLARE_DESCRIPTOR |
| 468 | |
| 469 | |
| 470 | // We define the association between CallDescriptors::Key and the specialized |
| 471 | // descriptor here to reduce boilerplate and mistakes. |
| 472 | #define DEF_KEY(name) \ |
| 473 | CallDescriptors::Key name##Descriptor::key() { return CallDescriptors::name; } |
| 474 | INTERFACE_DESCRIPTOR_LIST(DEF_KEY) |
| 475 | #undef DEF_KEY |
| 476 | } |
| 477 | } // namespace v8::internal |
| 478 | |
| 479 | |
| 480 | #if V8_TARGET_ARCH_ARM64 |
| 481 | #include "src/arm64/interface-descriptors-arm64.h" |
| 482 | #elif V8_TARGET_ARCH_ARM |
| 483 | #include "src/arm/interface-descriptors-arm.h" |
| 484 | #endif |
| 485 | |
| 486 | #endif // V8_CALL_INTERFACE_DESCRIPTOR_H_ |