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_ 64
