type-narrowing-reducer.h

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// Copyright 2018 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_TYPE_NARROWING_REDUCER_H_
#define V8_COMPILER_TYPE_NARROWING_REDUCER_H_
 
#include "src/base/compiler-specific.h"
#include "src/compiler/graph-reducer.h"
#include "src/compiler/operation-typer.h"
 
namespace v8 {
namespace internal {
namespace compiler {
 
// Forward declarations.
class JSGraph;
 
class V8_EXPORT_PRIVATE TypeNarrowingReducer final
    : public NON_EXPORTED_BASE(AdvancedReducer) {
 public:
  TypeNarrowingReducer(Editor* editor, JSGraph* jsgraph, JSHeapBroker* broker);
  ~TypeNarrowingReducer() final;
  TypeNarrowingReducer(const TypeNarrowingReducer&) = delete;
  TypeNarrowingReducer& operator=(const TypeNarrowingReducer&) = delete;
 
  const char* reducer_name() const override { return "TypeNarrowingReducer"; }
 
  Reduction Reduce(Node* node) final;
 
 private:
  JSGraph* jsgraph() const { return jsgraph_; }
  TFGraph* graph() const;
  Zone* zone() const;
 
  JSGraph* const jsgraph_;
  OperationTyper op_typer_;
};
 
}  // namespace compiler
}  // namespace internal
}  // namespace v8
 
#endif  // V8_COMPILER_TYPE_NARROWING_REDUCER_H_