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// 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/common/globals.h"
#include "src/compiler/graph-reducer.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() override;
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_