// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_COMPILER_VALUE_NUMBERING_REDUCER_H_
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#define V8_COMPILER_VALUE_NUMBERING_REDUCER_H_
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#include "src/base/compiler-specific.h"
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#include "src/compiler/graph-reducer.h"
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#include "src/globals.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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class V8_EXPORT_PRIVATE ValueNumberingReducer final
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: public NON_EXPORTED_BASE(Reducer) {
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public:
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explicit ValueNumberingReducer(Zone* temp_zone, Zone* graph_zone);
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~ValueNumberingReducer();
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const char* reducer_name() const override { return "ValueNumberingReducer"; }
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Reduction Reduce(Node* node) override;
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private:
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enum { kInitialCapacity = 256u };
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Reduction ReplaceIfTypesMatch(Node* node, Node* replacement);
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void Grow();
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Zone* temp_zone() const { return temp_zone_; }
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Zone* graph_zone() const { return graph_zone_; }
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Node** entries_;
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size_t capacity_;
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size_t size_;
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Zone* temp_zone_;
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Zone* graph_zone_;
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};
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} // namespace compiler
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} // namespace internal
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} // namespace v8
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#endif // V8_COMPILER_VALUE_NUMBERING_REDUCER_H_
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