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 10 namespace v8 { 11 namespace internal { 12 namespace compiler { 13 14 // Forward declarations. 15 class 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. 20 class 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: GraphReplayPrinter()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