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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_COMPILER_SIMPLIFIED_OPERATOR_H_ | 5 #ifndef V8_COMPILER_SIMPLIFIED_OPERATOR_H_ |
6 #define V8_COMPILER_SIMPLIFIED_OPERATOR_H_ | 6 #define V8_COMPILER_SIMPLIFIED_OPERATOR_H_ |
7 | 7 |
8 #include <iosfwd> | 8 #include <iosfwd> |
9 | 9 |
10 #include "src/base/compiler-specific.h" | 10 #include "src/base/compiler-specific.h" |
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238 size_t hash_value(NumberOperationHint); | 238 size_t hash_value(NumberOperationHint); |
239 | 239 |
240 V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream&, NumberOperationHint); | 240 V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream&, NumberOperationHint); |
241 | 241 |
242 NumberOperationHint NumberOperationHintOf(const Operator* op) | 242 NumberOperationHint NumberOperationHintOf(const Operator* op) |
243 WARN_UNUSED_RESULT; | 243 WARN_UNUSED_RESULT; |
244 | 244 |
245 int FormalParameterCountOf(const Operator* op) WARN_UNUSED_RESULT; | 245 int FormalParameterCountOf(const Operator* op) WARN_UNUSED_RESULT; |
246 bool IsRestLengthOf(const Operator* op) WARN_UNUSED_RESULT; | 246 bool IsRestLengthOf(const Operator* op) WARN_UNUSED_RESULT; |
247 | 247 |
| 248 class AllocateParameters { |
| 249 public: |
| 250 AllocateParameters(Type* type, PretenureFlag pretenure) |
| 251 : type_(type), pretenure_(pretenure) {} |
| 252 |
| 253 Type* type() const { return type_; } |
| 254 PretenureFlag pretenure() const { return pretenure_; } |
| 255 |
| 256 private: |
| 257 Type* type_; |
| 258 PretenureFlag pretenure_; |
| 259 }; |
| 260 |
| 261 size_t hash_value(AllocateParameters); |
| 262 |
| 263 V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream&, AllocateParameters); |
| 264 |
| 265 bool operator==(AllocateParameters const&, AllocateParameters const&); |
| 266 bool operator!=(AllocateParameters const&, AllocateParameters const&); |
| 267 |
248 PretenureFlag PretenureFlagOf(const Operator* op) WARN_UNUSED_RESULT; | 268 PretenureFlag PretenureFlagOf(const Operator* op) WARN_UNUSED_RESULT; |
249 | 269 |
| 270 Type* AllocateTypeOf(const Operator* op) WARN_UNUSED_RESULT; |
| 271 |
250 UnicodeEncoding UnicodeEncodingOf(const Operator*) WARN_UNUSED_RESULT; | 272 UnicodeEncoding UnicodeEncodingOf(const Operator*) WARN_UNUSED_RESULT; |
251 | 273 |
252 // Interface for building simplified operators, which represent the | 274 // Interface for building simplified operators, which represent the |
253 // medium-level operations of V8, including adding numbers, allocating objects, | 275 // medium-level operations of V8, including adding numbers, allocating objects, |
254 // indexing into objects and arrays, etc. | 276 // indexing into objects and arrays, etc. |
255 // All operators are typed but many are representation independent. | 277 // All operators are typed but many are representation independent. |
256 | 278 |
257 // Number values from JS can be in one of these representations: | 279 // Number values from JS can be in one of these representations: |
258 // - Tagged: word-sized integer that is either | 280 // - Tagged: word-sized integer that is either |
259 // - a signed small integer (31 or 32 bits plus a tag) | 281 // - a signed small integer (31 or 32 bits plus a tag) |
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435 | 457 |
436 // ensure-writable-fast-elements object, elements | 458 // ensure-writable-fast-elements object, elements |
437 const Operator* EnsureWritableFastElements(); | 459 const Operator* EnsureWritableFastElements(); |
438 | 460 |
439 // maybe-grow-fast-elements object, elements, index, length | 461 // maybe-grow-fast-elements object, elements, index, length |
440 const Operator* MaybeGrowFastElements(GrowFastElementsFlags flags); | 462 const Operator* MaybeGrowFastElements(GrowFastElementsFlags flags); |
441 | 463 |
442 // transition-elements-kind object, from-map, to-map | 464 // transition-elements-kind object, from-map, to-map |
443 const Operator* TransitionElementsKind(ElementsTransition transition); | 465 const Operator* TransitionElementsKind(ElementsTransition transition); |
444 | 466 |
445 const Operator* Allocate(PretenureFlag pretenure = NOT_TENURED); | 467 const Operator* Allocate(Type* type, PretenureFlag pretenure = NOT_TENURED); |
446 | 468 |
447 const Operator* LoadField(FieldAccess const&); | 469 const Operator* LoadField(FieldAccess const&); |
448 const Operator* StoreField(FieldAccess const&); | 470 const Operator* StoreField(FieldAccess const&); |
449 | 471 |
450 // load-buffer buffer, offset, length | 472 // load-buffer buffer, offset, length |
451 const Operator* LoadBuffer(BufferAccess); | 473 const Operator* LoadBuffer(BufferAccess); |
452 | 474 |
453 // store-buffer buffer, offset, length, value | 475 // store-buffer buffer, offset, length, value |
454 const Operator* StoreBuffer(BufferAccess); | 476 const Operator* StoreBuffer(BufferAccess); |
455 | 477 |
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472 Zone* const zone_; | 494 Zone* const zone_; |
473 | 495 |
474 DISALLOW_COPY_AND_ASSIGN(SimplifiedOperatorBuilder); | 496 DISALLOW_COPY_AND_ASSIGN(SimplifiedOperatorBuilder); |
475 }; | 497 }; |
476 | 498 |
477 } // namespace compiler | 499 } // namespace compiler |
478 } // namespace internal | 500 } // namespace internal |
479 } // namespace v8 | 501 } // namespace v8 |
480 | 502 |
481 #endif // V8_COMPILER_SIMPLIFIED_OPERATOR_H_ | 503 #endif // V8_COMPILER_SIMPLIFIED_OPERATOR_H_ |
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