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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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253 virtual void SetDeferredLazyDeoptimizationEnvironment(LEnvironment* env) { } | 253 virtual void SetDeferredLazyDeoptimizationEnvironment(LEnvironment* env) { } |
254 | 254 |
255 void MarkAsCall() { is_call_ = true; } | 255 void MarkAsCall() { is_call_ = true; } |
256 | 256 |
257 // Interface to the register allocator and iterators. | 257 // Interface to the register allocator and iterators. |
258 bool IsMarkedAsCall() const { return is_call_; } | 258 bool IsMarkedAsCall() const { return is_call_; } |
259 | 259 |
260 virtual bool HasResult() const = 0; | 260 virtual bool HasResult() const = 0; |
261 virtual LOperand* result() = 0; | 261 virtual LOperand* result() = 0; |
262 | 262 |
263 virtual int InputCount() = 0; | |
264 virtual LOperand* InputAt(int i) = 0; | |
265 virtual int TempCount() = 0; | 263 virtual int TempCount() = 0; |
266 virtual LOperand* TempAt(int i) = 0; | 264 virtual LOperand* TempAt(int i) = 0; |
267 | 265 |
268 LOperand* FirstInput() { return InputAt(0); } | 266 LOperand* FirstInput() { return InputAt(0); } |
269 LOperand* Output() { return HasResult() ? result() : NULL; } | 267 LOperand* Output() { return HasResult() ? result() : NULL; } |
270 | 268 |
271 #ifdef DEBUG | 269 #ifdef DEBUG |
272 void VerifyCall(); | 270 void VerifyCall(); |
273 #endif | 271 #endif |
274 | 272 |
275 private: | 273 private: |
| 274 // Iterator support. |
| 275 friend class InputIterator; |
| 276 virtual int InputCount() = 0; |
| 277 virtual LOperand* InputAt(int i) = 0; |
| 278 |
276 LEnvironment* environment_; | 279 LEnvironment* environment_; |
277 SetOncePointer<LPointerMap> pointer_map_; | 280 SetOncePointer<LPointerMap> pointer_map_; |
278 HValue* hydrogen_value_; | 281 HValue* hydrogen_value_; |
279 bool is_call_; | 282 bool is_call_; |
280 }; | 283 }; |
281 | 284 |
282 | 285 |
283 // R = number of result operands (0 or 1). | 286 // R = number of result operands (0 or 1). |
284 // I = number of input operands. | 287 // I = number of input operands. |
285 // T = number of temporary operands. | 288 // T = number of temporary operands. |
286 template<int R, int I, int T> | 289 template<int R, int I, int T> |
287 class LTemplateInstruction: public LInstruction { | 290 class LTemplateInstruction: public LInstruction { |
288 public: | 291 public: |
289 // Allow 0 or 1 output operands. | 292 // Allow 0 or 1 output operands. |
290 STATIC_ASSERT(R == 0 || R == 1); | 293 STATIC_ASSERT(R == 0 || R == 1); |
291 virtual bool HasResult() const { return R != 0; } | 294 virtual bool HasResult() const { return R != 0; } |
292 void set_result(LOperand* operand) { results_[0] = operand; } | 295 void set_result(LOperand* operand) { results_[0] = operand; } |
293 LOperand* result() { return results_[0]; } | 296 LOperand* result() { return results_[0]; } |
294 | 297 |
295 int InputCount() { return I; } | |
296 LOperand* InputAt(int i) { return inputs_[i]; } | 298 LOperand* InputAt(int i) { return inputs_[i]; } |
297 | 299 |
298 int TempCount() { return T; } | 300 int TempCount() { return T; } |
299 LOperand* TempAt(int i) { return temps_[i]; } | 301 LOperand* TempAt(int i) { return temps_[i]; } |
300 | 302 |
301 protected: | 303 protected: |
302 EmbeddedContainer<LOperand*, R> results_; | 304 EmbeddedContainer<LOperand*, R> results_; |
303 EmbeddedContainer<LOperand*, I> inputs_; | 305 EmbeddedContainer<LOperand*, I> inputs_; |
304 EmbeddedContainer<LOperand*, T> temps_; | 306 EmbeddedContainer<LOperand*, T> temps_; |
| 307 |
| 308 private: |
| 309 virtual int InputCount() { return I; } |
305 }; | 310 }; |
306 | 311 |
307 | 312 |
308 class LGap: public LTemplateInstruction<0, 0, 0> { | 313 class LGap: public LTemplateInstruction<0, 0, 0> { |
309 public: | 314 public: |
310 explicit LGap(HBasicBlock* block) | 315 explicit LGap(HBasicBlock* block) |
311 : block_(block) { | 316 : block_(block) { |
312 parallel_moves_[BEFORE] = NULL; | 317 parallel_moves_[BEFORE] = NULL; |
313 parallel_moves_[START] = NULL; | 318 parallel_moves_[START] = NULL; |
314 parallel_moves_[END] = NULL; | 319 parallel_moves_[END] = NULL; |
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2423 | 2428 |
2424 DISALLOW_COPY_AND_ASSIGN(LChunkBuilder); | 2429 DISALLOW_COPY_AND_ASSIGN(LChunkBuilder); |
2425 }; | 2430 }; |
2426 | 2431 |
2427 #undef DECLARE_HYDROGEN_ACCESSOR | 2432 #undef DECLARE_HYDROGEN_ACCESSOR |
2428 #undef DECLARE_CONCRETE_INSTRUCTION | 2433 #undef DECLARE_CONCRETE_INSTRUCTION |
2429 | 2434 |
2430 } } // namespace v8::internal | 2435 } } // namespace v8::internal |
2431 | 2436 |
2432 #endif // V8_ARM_LITHIUM_ARM_H_ | 2437 #endif // V8_ARM_LITHIUM_ARM_H_ |
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