| // Copyright 2014 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_VALUE_NUMBERING_REDUCER_H_ |
| #define V8_COMPILER_VALUE_NUMBERING_REDUCER_H_ |
| |
| #include "src/base/compiler-specific.h" |
| #include "src/compiler/graph-reducer.h" |
| #include "src/globals.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| class V8_EXPORT_PRIVATE ValueNumberingReducer final |
| : public NON_EXPORTED_BASE(Reducer) { |
| public: |
| explicit ValueNumberingReducer(Zone* temp_zone, Zone* graph_zone); |
| ~ValueNumberingReducer(); |
| |
| const char* reducer_name() const override { return "ValueNumberingReducer"; } |
| |
| Reduction Reduce(Node* node) override; |
| |
| private: |
| enum { kInitialCapacity = 256u }; |
| |
| Reduction ReplaceIfTypesMatch(Node* node, Node* replacement); |
| void Grow(); |
| Zone* temp_zone() const { return temp_zone_; } |
| Zone* graph_zone() const { return graph_zone_; } |
| |
| Node** entries_; |
| size_t capacity_; |
| size_t size_; |
| Zone* temp_zone_; |
| Zone* graph_zone_; |
| }; |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_COMPILER_VALUE_NUMBERING_REDUCER_H_ |