graph-replay.h

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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_GRAPH_REPLAY_H_
#define V8_COMPILER_GRAPH_REPLAY_H_
 
#include "src/compiler/node.h"
 
namespace v8 {
namespace internal {
namespace compiler {
 
// Forward declarations.
class Graph;
 
// Helper class to print a full replay of a graph. This replay can be used to
// materialize the same graph within a C++ unit test and hence test subsequent
// optimization passes on a graph without going through the construction steps.
class GraphReplayPrinter FINAL : public NullNodeVisitor {
 public:
#ifdef DEBUG
  static void PrintReplay(Graph* graph);
#else
  static void PrintReplay(Graph* graph) {}
#endif
 
  GenericGraphVisit::Control Pre(Node* node);
  void PostEdge(Node* from, int index, Node* to);
 
 private:
  GraphReplayPrinter() {}
 
  static void PrintReplayOpCreator(const Operator* op);
 
  DISALLOW_COPY_AND_ASSIGN(GraphReplayPrinter);
};
 
}  // namespace compiler
}  // namespace internal
}  // namespace v8
 
#endif  // V8_COMPILER_GRAPH_REPLAY_H_