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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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261 | 261 |
262 // Interface to the register allocator and iterators. | 262 // Interface to the register allocator and iterators. |
263 bool ClobbersTemps() const { return is_call_; } | 263 bool ClobbersTemps() const { return is_call_; } |
264 bool ClobbersRegisters() const { return is_call_; } | 264 bool ClobbersRegisters() const { return is_call_; } |
265 bool ClobbersDoubleRegisters() const { return is_call_; } | 265 bool ClobbersDoubleRegisters() const { return is_call_; } |
266 | 266 |
267 // Interface to the register allocator and iterators. | 267 // Interface to the register allocator and iterators. |
268 bool IsMarkedAsCall() const { return is_call_; } | 268 bool IsMarkedAsCall() const { return is_call_; } |
269 | 269 |
270 virtual bool HasResult() const = 0; | 270 virtual bool HasResult() const = 0; |
271 virtual LOperand* result() = 0; | 271 virtual LOperand* result() const = 0; |
272 | 272 |
273 LOperand* FirstInput() { return InputAt(0); } | 273 LOperand* FirstInput() { return InputAt(0); } |
274 LOperand* Output() { return HasResult() ? result() : NULL; } | 274 LOperand* Output() { return HasResult() ? result() : NULL; } |
275 | 275 |
276 virtual bool HasInterestingComment(LCodeGen* gen) const { return true; } | 276 virtual bool HasInterestingComment(LCodeGen* gen) const { return true; } |
277 | 277 |
278 #ifdef DEBUG | 278 #ifdef DEBUG |
279 void VerifyCall(); | 279 void VerifyCall(); |
280 #endif | 280 #endif |
281 | 281 |
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297 | 297 |
298 | 298 |
299 // R = number of result operands (0 or 1). | 299 // R = number of result operands (0 or 1). |
300 // I = number of input operands. | 300 // I = number of input operands. |
301 // T = number of temporary operands. | 301 // T = number of temporary operands. |
302 template<int R, int I, int T> | 302 template<int R, int I, int T> |
303 class LTemplateInstruction: public LInstruction { | 303 class LTemplateInstruction: public LInstruction { |
304 public: | 304 public: |
305 // Allow 0 or 1 output operands. | 305 // Allow 0 or 1 output operands. |
306 STATIC_ASSERT(R == 0 || R == 1); | 306 STATIC_ASSERT(R == 0 || R == 1); |
307 virtual bool HasResult() const { return R != 0; } | 307 virtual bool HasResult() const { return R != 0 && result() != NULL; } |
308 void set_result(LOperand* operand) { results_[0] = operand; } | 308 void set_result(LOperand* operand) { results_[0] = operand; } |
309 LOperand* result() { return results_[0]; } | 309 LOperand* result() const { return results_[0]; } |
310 | 310 |
311 protected: | 311 protected: |
312 EmbeddedContainer<LOperand*, R> results_; | 312 EmbeddedContainer<LOperand*, R> results_; |
313 EmbeddedContainer<LOperand*, I> inputs_; | 313 EmbeddedContainer<LOperand*, I> inputs_; |
314 EmbeddedContainer<LOperand*, T> temps_; | 314 EmbeddedContainer<LOperand*, T> temps_; |
315 | 315 |
316 private: | 316 private: |
317 virtual int InputCount() { return I; } | 317 virtual int InputCount() { return I; } |
318 virtual LOperand* InputAt(int i) { return inputs_[i]; } | 318 virtual LOperand* InputAt(int i) { return inputs_[i]; } |
319 | 319 |
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2799 | 2799 |
2800 DISALLOW_COPY_AND_ASSIGN(LChunkBuilder); | 2800 DISALLOW_COPY_AND_ASSIGN(LChunkBuilder); |
2801 }; | 2801 }; |
2802 | 2802 |
2803 #undef DECLARE_HYDROGEN_ACCESSOR | 2803 #undef DECLARE_HYDROGEN_ACCESSOR |
2804 #undef DECLARE_CONCRETE_INSTRUCTION | 2804 #undef DECLARE_CONCRETE_INSTRUCTION |
2805 | 2805 |
2806 } } // namespace v8::internal | 2806 } } // namespace v8::internal |
2807 | 2807 |
2808 #endif // V8_ARM_LITHIUM_ARM_H_ | 2808 #endif // V8_ARM_LITHIUM_ARM_H_ |
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