| // 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_CONTROL_REDUCER_H_ |
| #define V8_COMPILER_CONTROL_REDUCER_H_ |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| class JSGraph; |
| class CommonOperatorBuilder; |
| class Node; |
| |
| class ControlReducer { |
| public: |
| // Perform branch folding and dead code elimination on the graph. |
| static void ReduceGraph(Zone* zone, JSGraph* graph, |
| CommonOperatorBuilder* builder); |
| |
| // Trim nodes in the graph that are not reachable from end. |
| static void TrimGraph(Zone* zone, JSGraph* graph); |
| |
| // Testing interface. |
| static Node* ReducePhiForTesting(JSGraph* graph, |
| CommonOperatorBuilder* builder, Node* node); |
| static Node* ReduceBranchForTesting(JSGraph* graph, |
| CommonOperatorBuilder* builder, |
| Node* node); |
| static Node* ReduceMergeForTesting(JSGraph* graph, |
| CommonOperatorBuilder* builder, |
| Node* node); |
| }; |
| } |
| } |
| } // namespace v8::internal::compiler |
| |
| #endif // V8_COMPILER_CONTROL_REDUCER_H_ |