Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 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_MACHINE_OPERATOR_REDUCER_H_ |
| 6 | #define V8_COMPILER_MACHINE_OPERATOR_REDUCER_H_ |
| 7 | |
| 8 | #include "src/compiler/graph-reducer.h" |
| 9 | #include "src/compiler/machine-operator.h" |
| 10 | |
| 11 | namespace v8 { |
| 12 | namespace internal { |
| 13 | namespace compiler { |
| 14 | |
| 15 | // Forward declarations. |
| 16 | class CommonOperatorBuilder; |
| 17 | class JSGraph; |
| 18 | |
| 19 | |
| 20 | // Performs constant folding and strength reduction on nodes that have |
| 21 | // machine operators. |
| 22 | class MachineOperatorReducer FINAL : public Reducer { |
| 23 | public: |
| 24 | explicit MachineOperatorReducer(JSGraph* jsgraph); |
| 25 | ~MachineOperatorReducer(); |
| 26 | |
| 27 | virtual Reduction Reduce(Node* node) OVERRIDE; |
| 28 | |
| 29 | private: |
| 30 | Node* Float32Constant(volatile float value); |
| 31 | Node* Float64Constant(volatile double value); |
| 32 | Node* Int32Constant(int32_t value); |
| 33 | Node* Int64Constant(int64_t value); |
| 34 | |
| 35 | Reduction ReplaceBool(bool value) { return ReplaceInt32(value ? 1 : 0); } |
| 36 | Reduction ReplaceFloat32(volatile float value) { |
| 37 | return Replace(Float32Constant(value)); |
| 38 | } |
| 39 | Reduction ReplaceFloat64(volatile double value) { |
| 40 | return Replace(Float64Constant(value)); |
| 41 | } |
| 42 | Reduction ReplaceInt32(int32_t value) { |
| 43 | return Replace(Int32Constant(value)); |
| 44 | } |
| 45 | Reduction ReplaceInt64(int64_t value) { |
| 46 | return Replace(Int64Constant(value)); |
| 47 | } |
| 48 | |
| 49 | Reduction ReduceProjection(size_t index, Node* node); |
| 50 | |
| 51 | Graph* graph() const; |
| 52 | JSGraph* jsgraph() const { return jsgraph_; } |
| 53 | CommonOperatorBuilder* common() const; |
| 54 | MachineOperatorBuilder* machine() const; |
| 55 | |
| 56 | JSGraph* jsgraph_; |
| 57 | }; |
| 58 | |
| 59 | } // namespace compiler |
| 60 | } // namespace internal |
| 61 | } // namespace v8 |
| 62 | |
| 63 | #endif // V8_COMPILER_MACHINE_OPERATOR_REDUCER_H_ |