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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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301 | 301 |
302 DISALLOW_COPY_AND_ASSIGN(HGraph); | 302 DISALLOW_COPY_AND_ASSIGN(HGraph); |
303 }; | 303 }; |
304 | 304 |
305 | 305 |
306 Zone* HBasicBlock::zone() { return graph_->zone(); } | 306 Zone* HBasicBlock::zone() { return graph_->zone(); } |
307 | 307 |
308 | 308 |
309 class HEnvironment: public ZoneObject { | 309 class HEnvironment: public ZoneObject { |
310 public: | 310 public: |
| 311 enum CompilationPhase { HYDROGEN, LITHIUM }; |
| 312 |
311 HEnvironment(HEnvironment* outer, | 313 HEnvironment(HEnvironment* outer, |
312 Scope* scope, | 314 Scope* scope, |
313 Handle<JSFunction> closure); | 315 Handle<JSFunction> closure); |
314 | 316 |
315 // Simple accessors. | 317 // Simple accessors. |
316 Handle<JSFunction> closure() const { return closure_; } | 318 Handle<JSFunction> closure() const { return closure_; } |
317 const ZoneList<HValue*>* values() const { return &values_; } | 319 const ZoneList<HValue*>* values() const { return &values_; } |
318 const ZoneList<int>* assigned_variables() const { | 320 const ZoneList<int>* assigned_variables() const { |
319 return &assigned_variables_; | 321 return &assigned_variables_; |
320 } | 322 } |
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377 HEnvironment* CopyWithoutHistory() const; | 379 HEnvironment* CopyWithoutHistory() const; |
378 HEnvironment* CopyAsLoopHeader(HBasicBlock* block) const; | 380 HEnvironment* CopyAsLoopHeader(HBasicBlock* block) const; |
379 | 381 |
380 // Create an "inlined version" of this environment, where the original | 382 // Create an "inlined version" of this environment, where the original |
381 // environment is the outer environment but the top expression stack | 383 // environment is the outer environment but the top expression stack |
382 // elements are moved to an inner environment as parameters. If | 384 // elements are moved to an inner environment as parameters. If |
383 // is_speculative, the argument values are expected to be PushArgument | 385 // is_speculative, the argument values are expected to be PushArgument |
384 // instructions, otherwise they are the actual values. | 386 // instructions, otherwise they are the actual values. |
385 HEnvironment* CopyForInlining(Handle<JSFunction> target, | 387 HEnvironment* CopyForInlining(Handle<JSFunction> target, |
386 FunctionLiteral* function, | 388 FunctionLiteral* function, |
387 bool is_speculative, | 389 CompilationPhase compilation_phase, |
388 HConstant* undefined) const; | 390 HConstant* undefined) const; |
389 | 391 |
390 void AddIncomingEdge(HBasicBlock* block, HEnvironment* other); | 392 void AddIncomingEdge(HBasicBlock* block, HEnvironment* other); |
391 | 393 |
392 void ClearHistory() { | 394 void ClearHistory() { |
393 pop_count_ = 0; | 395 pop_count_ = 0; |
394 push_count_ = 0; | 396 push_count_ = 0; |
395 assigned_variables_.Rewind(0); | 397 assigned_variables_.Rewind(0); |
396 } | 398 } |
397 | 399 |
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1155 const char* filename_; | 1157 const char* filename_; |
1156 HeapStringAllocator string_allocator_; | 1158 HeapStringAllocator string_allocator_; |
1157 StringStream trace_; | 1159 StringStream trace_; |
1158 int indent_; | 1160 int indent_; |
1159 }; | 1161 }; |
1160 | 1162 |
1161 | 1163 |
1162 } } // namespace v8::internal | 1164 } } // namespace v8::internal |
1163 | 1165 |
1164 #endif // V8_HYDROGEN_H_ | 1166 #endif // V8_HYDROGEN_H_ |
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