// 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/base/compiler-specific.h"
|
#include "src/compiler/graph-reducer.h"
|
#include "src/compiler/machine-operator.h"
|
#include "src/globals.h"
|
|
namespace v8 {
|
namespace internal {
|
namespace compiler {
|
|
// Forward declarations.
|
class CommonOperatorBuilder;
|
class MachineGraph;
|
|
// Performs constant folding and strength reduction on nodes that have
|
// machine operators.
|
class V8_EXPORT_PRIVATE MachineOperatorReducer final
|
: public NON_EXPORTED_BASE(Reducer) {
|
public:
|
explicit MachineOperatorReducer(MachineGraph* mcgraph,
|
bool allow_signalling_nan = true);
|
~MachineOperatorReducer();
|
|
const char* reducer_name() const override { return "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<int32_t>(value));
|
}
|
Node* Uint64Constant(uint64_t value) {
|
return Int64Constant(bit_cast<int64_t>(value));
|
}
|
Node* Float64Mul(Node* lhs, Node* rhs);
|
Node* Float64PowHalf(Node* 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 ReduceInt64Add(Node* node);
|
Reduction ReduceInt32Sub(Node* node);
|
Reduction ReduceInt64Sub(Node* node);
|
Reduction ReduceInt32Div(Node* node);
|
Reduction ReduceUint32Div(Node* node);
|
Reduction ReduceInt32Mod(Node* node);
|
Reduction ReduceUint32Mod(Node* node);
|
Reduction ReduceStore(Node* node);
|
Reduction ReduceProjection(size_t index, Node* node);
|
Reduction ReduceWord32Shifts(Node* node);
|
Reduction ReduceWord32Shl(Node* node);
|
Reduction ReduceWord64Shl(Node* node);
|
Reduction ReduceWord32Shr(Node* node);
|
Reduction ReduceWord64Shr(Node* node);
|
Reduction ReduceWord32Sar(Node* node);
|
Reduction ReduceWord64Sar(Node* node);
|
Reduction ReduceWord32And(Node* node);
|
Reduction TryMatchWord32Ror(Node* node);
|
Reduction ReduceWord32Or(Node* node);
|
Reduction ReduceWord32Xor(Node* node);
|
Reduction ReduceFloat64InsertLowWord32(Node* node);
|
Reduction ReduceFloat64InsertHighWord32(Node* node);
|
Reduction ReduceFloat64Compare(Node* node);
|
Reduction ReduceFloat64RoundDown(Node* node);
|
|
Graph* graph() const;
|
MachineGraph* mcgraph() const { return mcgraph_; }
|
CommonOperatorBuilder* common() const;
|
MachineOperatorBuilder* machine() const;
|
|
MachineGraph* mcgraph_;
|
bool allow_signalling_nan_;
|
};
|
|
} // namespace compiler
|
} // namespace internal
|
} // namespace v8
|
|
#endif // V8_COMPILER_MACHINE_OPERATOR_REDUCER_H_
|
