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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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259 bool ClobbersTemps() const { return is_call_; } | 259 bool ClobbersTemps() const { return is_call_; } |
260 bool ClobbersRegisters() const { return is_call_; } | 260 bool ClobbersRegisters() const { return is_call_; } |
261 bool ClobbersDoubleRegisters() const { return is_call_; } | 261 bool ClobbersDoubleRegisters() const { return is_call_; } |
262 | 262 |
263 virtual void SetDeferredLazyDeoptimizationEnvironment(LEnvironment* env) { } | 263 virtual void SetDeferredLazyDeoptimizationEnvironment(LEnvironment* env) { } |
264 | 264 |
265 // Interface to the register allocator and iterators. | 265 // Interface to the register allocator and iterators. |
266 bool IsMarkedAsCall() const { return is_call_; } | 266 bool IsMarkedAsCall() const { return is_call_; } |
267 | 267 |
268 virtual bool HasResult() const = 0; | 268 virtual bool HasResult() const = 0; |
269 virtual LOperand* result() = 0; | 269 virtual LOperand* result() const = 0; |
270 | 270 |
271 LOperand* FirstInput() { return InputAt(0); } | 271 LOperand* FirstInput() { return InputAt(0); } |
272 LOperand* Output() { return HasResult() ? result() : NULL; } | 272 LOperand* Output() { return HasResult() ? result() : NULL; } |
273 | 273 |
274 virtual bool HasInterestingComment(LCodeGen* gen) const { return true; } | 274 virtual bool HasInterestingComment(LCodeGen* gen) const { return true; } |
275 | 275 |
276 #ifdef DEBUG | 276 #ifdef DEBUG |
277 void VerifyCall(); | 277 void VerifyCall(); |
278 #endif | 278 #endif |
279 | 279 |
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295 | 295 |
296 | 296 |
297 // R = number of result operands (0 or 1). | 297 // R = number of result operands (0 or 1). |
298 // I = number of input operands. | 298 // I = number of input operands. |
299 // T = number of temporary operands. | 299 // T = number of temporary operands. |
300 template<int R, int I, int T> | 300 template<int R, int I, int T> |
301 class LTemplateInstruction: public LInstruction { | 301 class LTemplateInstruction: public LInstruction { |
302 public: | 302 public: |
303 // Allow 0 or 1 output operands. | 303 // Allow 0 or 1 output operands. |
304 STATIC_ASSERT(R == 0 || R == 1); | 304 STATIC_ASSERT(R == 0 || R == 1); |
305 virtual bool HasResult() const { return R != 0; } | 305 virtual bool HasResult() const { return R != 0 && result() != NULL; } |
306 void set_result(LOperand* operand) { results_[0] = operand; } | 306 void set_result(LOperand* operand) { results_[0] = operand; } |
307 LOperand* result() { return results_[0]; } | 307 LOperand* result() const { return results_[0]; } |
308 | 308 |
309 protected: | 309 protected: |
310 EmbeddedContainer<LOperand*, R> results_; | 310 EmbeddedContainer<LOperand*, R> results_; |
311 EmbeddedContainer<LOperand*, I> inputs_; | 311 EmbeddedContainer<LOperand*, I> inputs_; |
312 EmbeddedContainer<LOperand*, T> temps_; | 312 EmbeddedContainer<LOperand*, T> temps_; |
313 | 313 |
314 private: | 314 private: |
315 // Iterator support. | 315 // Iterator support. |
316 virtual int InputCount() { return I; } | 316 virtual int InputCount() { return I; } |
317 virtual LOperand* InputAt(int i) { return inputs_[i]; } | 317 virtual LOperand* InputAt(int i) { return inputs_[i]; } |
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2706 | 2706 |
2707 DISALLOW_COPY_AND_ASSIGN(LChunkBuilder); | 2707 DISALLOW_COPY_AND_ASSIGN(LChunkBuilder); |
2708 }; | 2708 }; |
2709 | 2709 |
2710 #undef DECLARE_HYDROGEN_ACCESSOR | 2710 #undef DECLARE_HYDROGEN_ACCESSOR |
2711 #undef DECLARE_CONCRETE_INSTRUCTION | 2711 #undef DECLARE_CONCRETE_INSTRUCTION |
2712 | 2712 |
2713 } } // namespace v8::int | 2713 } } // namespace v8::int |
2714 | 2714 |
2715 #endif // V8_X64_LITHIUM_X64_H_ | 2715 #endif // V8_X64_LITHIUM_X64_H_ |
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