| // 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_MACHINE_OPERATOR_REDUCER_H_ |
| #define V8_COMPILER_MACHINE_OPERATOR_REDUCER_H_ |
| |
| #include "src/compiler/graph-reducer.h" |
| #include "src/compiler/machine-operator.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| // Forward declarations. |
| class CommonOperatorBuilder; |
| class JSGraph; |
| |
| |
| // Performs constant folding and strength reduction on nodes that have |
| // machine operators. |
| class MachineOperatorReducer FINAL : public Reducer { |
| public: |
| explicit MachineOperatorReducer(JSGraph* jsgraph); |
| ~MachineOperatorReducer(); |
| |
| virtual Reduction Reduce(Node* node) OVERRIDE; |
| |
| private: |
| Node* Float32Constant(volatile float value); |
| Node* Float64Constant(volatile double value); |
| Node* Int32Constant(int32_t value); |
| Node* Int64Constant(int64_t value); |
| Node* Uint32Constant(uint32_t value) { |
| return Int32Constant(bit_cast<uint32_t>(value)); |
| } |
| |
| Reduction ReplaceBool(bool value) { return ReplaceInt32(value ? 1 : 0); } |
| Reduction ReplaceFloat32(volatile float value) { |
| return Replace(Float32Constant(value)); |
| } |
| Reduction ReplaceFloat64(volatile double value) { |
| return Replace(Float64Constant(value)); |
| } |
| Reduction ReplaceInt32(int32_t value) { |
| return Replace(Int32Constant(value)); |
| } |
| Reduction ReplaceInt64(int64_t value) { |
| return Replace(Int64Constant(value)); |
| } |
| |
| Reduction ReduceProjection(size_t index, Node* node); |
| |
| Graph* graph() const; |
| JSGraph* jsgraph() const { return jsgraph_; } |
| CommonOperatorBuilder* common() const; |
| MachineOperatorBuilder* machine() const; |
| |
| JSGraph* jsgraph_; |
| }; |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_COMPILER_MACHINE_OPERATOR_REDUCER_H_ |