1// Copyright 2014 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_GRAPH_REPLAY_H_
6#define V8_COMPILER_GRAPH_REPLAY_H_
7
8#include "src/compiler/node.h"
9
10namespace v8 {
11namespace internal {
12namespace compiler {
13
14// Forward declarations.
15class Graph;
16
17// Helper class to print a full replay of a graph. This replay can be used to
18// materialize the same graph within a C++ unit test and hence test subsequent
19// optimization passes on a graph without going through the construction steps.
20class GraphReplayPrinter FINAL : public NullNodeVisitor {
21 public:
22#ifdef DEBUG
23  static void PrintReplay(Graph* graph);
24#else
25  static void PrintReplay(Graph* graph) {}
26#endif
27
28  GenericGraphVisit::Control Pre(Node* node);
29  void PostEdge(Node* from, int index, Node* to);
30
31 private:
32  GraphReplayPrinter() {}
33
34  static void PrintReplayOpCreator(const Operator* op);
35
36  DISALLOW_COPY_AND_ASSIGN(GraphReplayPrinter);
37};
38
39}  // namespace compiler
40}  // namespace internal
41}  // namespace v8
42
43#endif  // V8_COMPILER_GRAPH_REPLAY_H_
44