Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 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_TAIL_CALL_OPTIMIZATION_H_ |
| 6 | #define V8_COMPILER_TAIL_CALL_OPTIMIZATION_H_ |
| 7 | |
| 8 | #include "src/compiler/graph-reducer.h" |
| 9 | |
| 10 | namespace v8 { |
| 11 | namespace internal { |
| 12 | namespace compiler { |
| 13 | |
| 14 | // Forward declarations. |
| 15 | class CommonOperatorBuilder; |
| 16 | class Graph; |
| 17 | |
| 18 | |
| 19 | // Performs tail call optimization by replacing certain combinations of Return |
| 20 | // and Call nodes with a single TailCall. |
| 21 | class TailCallOptimization final : public Reducer { |
| 22 | public: |
| 23 | TailCallOptimization(CommonOperatorBuilder* common, Graph* graph) |
| 24 | : common_(common), graph_(graph) {} |
| 25 | |
| 26 | Reduction Reduce(Node* node) final; |
| 27 | |
| 28 | private: |
| 29 | CommonOperatorBuilder* common() const { return common_; } |
| 30 | Graph* graph() const { return graph_; } |
| 31 | |
| 32 | CommonOperatorBuilder* const common_; |
| 33 | Graph* const graph_; |
| 34 | }; |
| 35 | |
| 36 | } // namespace compiler |
| 37 | } // namespace internal |
| 38 | } // namespace v8 |
| 39 | |
| 40 | #endif // V8_COMPILER_TAIL_CALL_OPTIMIZATION_H_ |