// Copyright 2015 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_CONTROL_FLOW_OPTIMIZER_H_ #define V8_COMPILER_CONTROL_FLOW_OPTIMIZER_H_ #include "src/compiler/node-marker.h" #include "src/globals.h" #include "src/zone/zone-containers.h" namespace v8 { namespace internal { namespace compiler { // Forward declarations. class CommonOperatorBuilder; class Graph; class MachineOperatorBuilder; class Node; class V8_EXPORT_PRIVATE ControlFlowOptimizer final { public: ControlFlowOptimizer(Graph* graph, CommonOperatorBuilder* common, MachineOperatorBuilder* machine, Zone* zone); void Optimize(); private: void Enqueue(Node* node); void VisitNode(Node* node); void VisitBranch(Node* node); bool TryBuildSwitch(Node* node); bool TryCloneBranch(Node* node); Graph* graph() const { return graph_; } CommonOperatorBuilder* common() const { return common_; } MachineOperatorBuilder* machine() const { return machine_; } Zone* zone() const { return zone_; } Graph* const graph_; CommonOperatorBuilder* const common_; MachineOperatorBuilder* const machine_; ZoneQueue<Node*> queue_; NodeMarker<bool> queued_; Zone* const zone_; DISALLOW_COPY_AND_ASSIGN(ControlFlowOptimizer); }; } // namespace compiler } // namespace internal } // namespace v8 #endif // V8_COMPILER_CONTROL_FLOW_OPTIMIZER_H_