| // 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_ |