// 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(); 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)); } Node* Word32And(Node* lhs, Node* rhs); Node* Word32And(Node* lhs, uint32_t rhs) { return Word32And(lhs, Uint32Constant(rhs)); } Node* Word32Sar(Node* lhs, uint32_t rhs); Node* Word32Shr(Node* lhs, uint32_t rhs); Node* Word32Equal(Node* lhs, Node* rhs); Node* Int32Add(Node* lhs, Node* rhs); Node* Int32Sub(Node* lhs, Node* rhs); Node* Int32Mul(Node* lhs, Node* rhs); Node* Int32Div(Node* dividend, int32_t divisor); Node* Uint32Div(Node* dividend, uint32_t divisor); 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 ReplaceUint32(uint32_t value) { return Replace(Uint32Constant(value)); } Reduction ReplaceInt64(int64_t value) { return Replace(Int64Constant(value)); } Reduction ReduceInt32Add(Node* node); Reduction ReduceInt32Sub(Node* node); Reduction ReduceInt32Div(Node* node); Reduction ReduceUint32Div(Node* node); Reduction ReduceInt32Mod(Node* node); Reduction ReduceUint32Mod(Node* node); Reduction ReduceTruncateFloat64ToInt32(Node* node); Reduction ReduceStore(Node* node); Reduction ReduceProjection(size_t index, Node* node); Reduction ReduceWord32Shifts(Node* node); Reduction ReduceWord32Shl(Node* node); Reduction ReduceWord32Sar(Node* node); Reduction ReduceWord32And(Node* node); Reduction ReduceWord32Or(Node* node); Reduction ReduceFloat64InsertLowWord32(Node* node); Reduction ReduceFloat64InsertHighWord32(Node* node); Reduction ReduceFloat64Compare(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_