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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_COMPILER_AST_GRAPH_BUILDER_H_ | 5 #ifndef V8_COMPILER_AST_GRAPH_BUILDER_H_ |
6 #define V8_COMPILER_AST_GRAPH_BUILDER_H_ | 6 #define V8_COMPILER_AST_GRAPH_BUILDER_H_ |
7 | 7 |
8 #include "src/ast.h" | 8 #include "src/ast.h" |
9 #include "src/compiler/js-graph.h" | 9 #include "src/compiler/js-graph.h" |
10 #include "src/compiler/liveness-analyzer.h" | 10 #include "src/compiler/liveness-analyzer.h" |
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226 // If so, record the stack height into the compilation and return {true}. | 226 // If so, record the stack height into the compilation and return {true}. |
227 bool CheckOsrEntry(IterationStatement* stmt); | 227 bool CheckOsrEntry(IterationStatement* stmt); |
228 | 228 |
229 // Computes local variable liveness and replaces dead variables in | 229 // Computes local variable liveness and replaces dead variables in |
230 // frame states with the undefined values. | 230 // frame states with the undefined values. |
231 void ClearNonLiveSlotsInFrameStates(); | 231 void ClearNonLiveSlotsInFrameStates(); |
232 | 232 |
233 Node** EnsureInputBufferSize(int size); | 233 Node** EnsureInputBufferSize(int size); |
234 | 234 |
235 // Named and keyed loads require a VectorSlotPair for successful lowering. | 235 // Named and keyed loads require a VectorSlotPair for successful lowering. |
236 VectorSlotPair CreateVectorSlotPair(FeedbackVectorICSlot slot) const; | 236 VectorSlotPair CreateVectorSlotPair(FeedbackVectorSlot slot) const; |
237 | 237 |
238 // Determine which contexts need to be checked for extension objects that | 238 // Determine which contexts need to be checked for extension objects that |
239 // might shadow the optimistic declaration of dynamic lookup variables. | 239 // might shadow the optimistic declaration of dynamic lookup variables. |
240 uint32_t ComputeBitsetForDynamicGlobal(Variable* variable); | 240 uint32_t ComputeBitsetForDynamicGlobal(Variable* variable); |
241 uint32_t ComputeBitsetForDynamicContext(Variable* variable); | 241 uint32_t ComputeBitsetForDynamicContext(Variable* variable); |
242 | 242 |
243 // =========================================================================== | 243 // =========================================================================== |
244 // The following build methods all generate graph fragments and return one | 244 // The following build methods all generate graph fragments and return one |
245 // resulting node. The operand stack height remains the same, variables and | 245 // resulting node. The operand stack height remains the same, variables and |
246 // other dependencies tracked by the environment might be mutated though. | 246 // other dependencies tracked by the environment might be mutated though. |
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556 | 556 |
557 // Prepare environment to be used as loop header. | 557 // Prepare environment to be used as loop header. |
558 void PrepareForLoop(BitVector* assigned, bool is_osr = false); | 558 void PrepareForLoop(BitVector* assigned, bool is_osr = false); |
559 }; | 559 }; |
560 | 560 |
561 } // namespace compiler | 561 } // namespace compiler |
562 } // namespace internal | 562 } // namespace internal |
563 } // namespace v8 | 563 } // namespace v8 |
564 | 564 |
565 #endif // V8_COMPILER_AST_GRAPH_BUILDER_H_ | 565 #endif // V8_COMPILER_AST_GRAPH_BUILDER_H_ |
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