| // Copyright 2015 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_COMPILER_ESCAPE_ANALYSIS_REDUCER_H_ |
| #define V8_COMPILER_ESCAPE_ANALYSIS_REDUCER_H_ |
| |
| #include "src/bit-vector.h" |
| #include "src/compiler/escape-analysis.h" |
| #include "src/compiler/graph-reducer.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| // Forward declarations. |
| class JSGraph; |
| |
| class EscapeAnalysisReducer final : public AdvancedReducer { |
| public: |
| EscapeAnalysisReducer(Editor* editor, JSGraph* jsgraph, |
| EscapeAnalysis* escape_analysis, Zone* zone); |
| |
| Reduction Reduce(Node* node) final; |
| |
| // Verifies that all virtual allocation nodes have been dealt with. Run it |
| // after this reducer has been applied. Has no effect in release mode. |
| void VerifyReplacement() const; |
| |
| private: |
| Reduction ReduceLoad(Node* node); |
| Reduction ReduceStore(Node* node); |
| Reduction ReduceAllocate(Node* node); |
| Reduction ReduceFinishRegion(Node* node); |
| Reduction ReduceReferenceEqual(Node* node); |
| Reduction ReduceObjectIsSmi(Node* node); |
| Reduction ReduceFrameStateUses(Node* node); |
| Node* ReduceDeoptState(Node* node, Node* effect, bool multiple_users); |
| Node* ReduceStateValueInput(Node* node, int node_index, Node* effect, |
| bool node_multiused, bool already_cloned, |
| bool multiple_users); |
| |
| JSGraph* jsgraph() const { return jsgraph_; } |
| EscapeAnalysis* escape_analysis() const { return escape_analysis_; } |
| Zone* zone() const { return zone_; } |
| Isolate* isolate() const; |
| |
| JSGraph* const jsgraph_; |
| EscapeAnalysis* escape_analysis_; |
| Zone* const zone_; |
| // This bit vector marks nodes we already processed (allocs, loads, stores) |
| // and nodes that do not need a visit from ReduceDeoptState etc. |
| BitVector fully_reduced_; |
| bool exists_virtual_allocate_; |
| |
| DISALLOW_COPY_AND_ASSIGN(EscapeAnalysisReducer); |
| }; |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_COMPILER_ESCAPE_ANALYSIS_REDUCER_H_ |