blob: 05ea0e0c75869c8063362cef35276fbb70491daf [file] [log] [blame]
// 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.
#include <map>
#include "src/compiler/graph-reducer.h"
#include "src/zone-allocator.h"
namespace v8 {
namespace internal {
namespace compiler {
// Forward declarations.
class CommonOperatorBuilder;
class Graph;
// Lowers Select nodes to diamonds.
class SelectLowering FINAL : public Reducer {
SelectLowering(Graph* graph, CommonOperatorBuilder* common);
Reduction Reduce(Node* node) OVERRIDE;
typedef std::multimap<Node*, Node*, std::less<Node*>,
zone_allocator<std::pair<Node* const, Node*>>> Merges;
bool ReachableFrom(Node* const sink, Node* const source);
CommonOperatorBuilder* common() const { return common_; }
Graph* graph() const { return graph_; }
CommonOperatorBuilder* common_;
Graph* graph_;
Merges merges_;
} // namespace compiler
} // namespace internal
} // namespace v8