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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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| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | 27 |
| 28 #ifndef V8_HYDROGEN_H_ | 28 #ifndef V8_HYDROGEN_H_ |
| 29 #define V8_HYDROGEN_H_ | 29 #define V8_HYDROGEN_H_ |
| 30 | 30 |
| 31 #include "v8.h" | 31 #include "v8.h" |
| 32 | 32 |
| 33 #include "allocation.h" |
| 33 #include "ast.h" | 34 #include "ast.h" |
| 34 #include "compiler.h" | 35 #include "compiler.h" |
| 35 #include "hydrogen-instructions.h" | 36 #include "hydrogen-instructions.h" |
| 36 #include "zone.h" | 37 #include "zone.h" |
| 37 | 38 |
| 38 namespace v8 { | 39 namespace v8 { |
| 39 namespace internal { | 40 namespace internal { |
| 40 | 41 |
| 41 // Forward declarations. | 42 // Forward declarations. |
| 42 class BitVector; | 43 class BitVector; |
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| 301 | 302 |
| 302 DISALLOW_COPY_AND_ASSIGN(HGraph); | 303 DISALLOW_COPY_AND_ASSIGN(HGraph); |
| 303 }; | 304 }; |
| 304 | 305 |
| 305 | 306 |
| 306 Zone* HBasicBlock::zone() { return graph_->zone(); } | 307 Zone* HBasicBlock::zone() { return graph_->zone(); } |
| 307 | 308 |
| 308 | 309 |
| 309 class HEnvironment: public ZoneObject { | 310 class HEnvironment: public ZoneObject { |
| 310 public: | 311 public: |
| 312 enum CompilationPhase { HYDROGEN, LITHIUM }; |
| 313 |
| 311 HEnvironment(HEnvironment* outer, | 314 HEnvironment(HEnvironment* outer, |
| 312 Scope* scope, | 315 Scope* scope, |
| 313 Handle<JSFunction> closure); | 316 Handle<JSFunction> closure); |
| 314 | 317 |
| 315 // Simple accessors. | 318 // Simple accessors. |
| 316 Handle<JSFunction> closure() const { return closure_; } | 319 Handle<JSFunction> closure() const { return closure_; } |
| 317 const ZoneList<HValue*>* values() const { return &values_; } | 320 const ZoneList<HValue*>* values() const { return &values_; } |
| 318 const ZoneList<int>* assigned_variables() const { | 321 const ZoneList<int>* assigned_variables() const { |
| 319 return &assigned_variables_; | 322 return &assigned_variables_; |
| 320 } | 323 } |
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| 377 HEnvironment* CopyWithoutHistory() const; | 380 HEnvironment* CopyWithoutHistory() const; |
| 378 HEnvironment* CopyAsLoopHeader(HBasicBlock* block) const; | 381 HEnvironment* CopyAsLoopHeader(HBasicBlock* block) const; |
| 379 | 382 |
| 380 // Create an "inlined version" of this environment, where the original | 383 // Create an "inlined version" of this environment, where the original |
| 381 // environment is the outer environment but the top expression stack | 384 // environment is the outer environment but the top expression stack |
| 382 // elements are moved to an inner environment as parameters. If | 385 // elements are moved to an inner environment as parameters. If |
| 383 // is_speculative, the argument values are expected to be PushArgument | 386 // is_speculative, the argument values are expected to be PushArgument |
| 384 // instructions, otherwise they are the actual values. | 387 // instructions, otherwise they are the actual values. |
| 385 HEnvironment* CopyForInlining(Handle<JSFunction> target, | 388 HEnvironment* CopyForInlining(Handle<JSFunction> target, |
| 386 FunctionLiteral* function, | 389 FunctionLiteral* function, |
| 387 bool is_speculative, | 390 CompilationPhase compilation_phase, |
| 388 HConstant* undefined) const; | 391 HConstant* undefined) const; |
| 389 | 392 |
| 390 void AddIncomingEdge(HBasicBlock* block, HEnvironment* other); | 393 void AddIncomingEdge(HBasicBlock* block, HEnvironment* other); |
| 391 | 394 |
| 392 void ClearHistory() { | 395 void ClearHistory() { |
| 393 pop_count_ = 0; | 396 pop_count_ = 0; |
| 394 push_count_ = 0; | 397 push_count_ = 0; |
| 395 assigned_variables_.Rewind(0); | 398 assigned_variables_.Rewind(0); |
| 396 } | 399 } |
| 397 | 400 |
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| 1155 const char* filename_; | 1158 const char* filename_; |
| 1156 HeapStringAllocator string_allocator_; | 1159 HeapStringAllocator string_allocator_; |
| 1157 StringStream trace_; | 1160 StringStream trace_; |
| 1158 int indent_; | 1161 int indent_; |
| 1159 }; | 1162 }; |
| 1160 | 1163 |
| 1161 | 1164 |
| 1162 } } // namespace v8::internal | 1165 } } // namespace v8::internal |
| 1163 | 1166 |
| 1164 #endif // V8_HYDROGEN_H_ | 1167 #endif // V8_HYDROGEN_H_ |
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