1// Copyright 2015 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef V8_COMPILER_TAIL_CALL_OPTIMIZATION_H_
6#define V8_COMPILER_TAIL_CALL_OPTIMIZATION_H_
7
8#include "src/compiler/graph-reducer.h"
9#include "src/globals.h"
10
11namespace v8 {
12namespace internal {
13namespace compiler {
14
15// Forward declarations.
16class CommonOperatorBuilder;
17class Graph;
18
19
20// Performs tail call optimization by replacing certain combinations of Return
21// and Call nodes with a single TailCall.
22class V8_EXPORT_PRIVATE TailCallOptimization final : public Reducer {
23 public:
24  TailCallOptimization(CommonOperatorBuilder* common, Graph* graph)
25      : common_(common), graph_(graph) {}
26
27  Reduction Reduce(Node* node) final;
28
29 private:
30  CommonOperatorBuilder* common() const { return common_; }
31  Graph* graph() const { return graph_; }
32
33  CommonOperatorBuilder* const common_;
34  Graph* const graph_;
35};
36
37}  // namespace compiler
38}  // namespace internal
39}  // namespace v8
40
41#endif  // V8_COMPILER_TAIL_CALL_OPTIMIZATION_H_
42