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// 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_JS_TYPED_LOWERING_H_
#define V8_COMPILER_JS_TYPED_LOWERING_H_
#include "src/compiler/graph-reducer.h"
#include "src/compiler/simplified-operator.h"
namespace v8 {
namespace internal {
namespace compiler {
// Forward declarations.
class CommonOperatorBuilder;
class JSGraph;
class JSOperatorBuilder;
class MachineOperatorBuilder;
// Lowers JS-level operators to simplified operators based on types.
class JSTypedLowering FINAL : public Reducer {
public:
JSTypedLowering(JSGraph* jsgraph, Zone* zone);
~JSTypedLowering() FINAL {}
Reduction Reduce(Node* node) FINAL;
private:
friend class JSBinopReduction;
Reduction ReplaceEagerly(Node* old, Node* node);
Reduction ReduceJSAdd(Node* node);
Reduction ReduceJSBitwiseOr(Node* node);
Reduction ReduceJSMultiply(Node* node);
Reduction ReduceJSComparison(Node* node);
Reduction ReduceJSLoadProperty(Node* node);
Reduction ReduceJSStoreProperty(Node* node);
Reduction ReduceJSLoadContext(Node* node);
Reduction ReduceJSStoreContext(Node* node);
Reduction ReduceJSEqual(Node* node, bool invert);
Reduction ReduceJSStrictEqual(Node* node, bool invert);
Reduction ReduceJSUnaryNot(Node* node);
Reduction ReduceJSToBoolean(Node* node);
Reduction ReduceJSToNumberInput(Node* input);
Reduction ReduceJSToNumber(Node* node);
Reduction ReduceJSToStringInput(Node* input);
Reduction ReduceJSToString(Node* node);
Reduction ReduceNumberBinop(Node* node, const Operator* numberOp);
Reduction ReduceInt32Binop(Node* node, const Operator* intOp);
Reduction ReduceUI32Shift(Node* node, Signedness left_signedness,
const Operator* shift_op);
Node* ConvertPrimitiveToNumber(Node* input);
template <IrOpcode::Value>
Node* FindConversion(Node* input);
void InsertConversion(Node* conversion);
Node* Word32Shl(Node* const lhs, int32_t const rhs);
Factory* factory() const;
Graph* graph() const;
JSGraph* jsgraph() const { return jsgraph_; }
JSOperatorBuilder* javascript() const;
CommonOperatorBuilder* common() const;
SimplifiedOperatorBuilder* simplified() { return &simplified_; }
MachineOperatorBuilder* machine() const;
JSGraph* jsgraph_;
SimplifiedOperatorBuilder simplified_;
ZoneVector<Node*> conversions_; // Cache inserted JSToXXX() conversions.
Type* zero_range_;
Type* one_range_;
Type* zero_thirtyone_range_;
Type* shifted_int32_ranges_[4];
};
} // namespace compiler
} // namespace internal
} // namespace v8
#endif // V8_COMPILER_JS_TYPED_LOWERING_H_
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