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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_CHANGE_LOWERING_H_
#define V8_COMPILER_CHANGE_LOWERING_H_
#include "src/compiler/graph-reducer.h"
namespace v8 {
namespace internal {
namespace compiler {
// Forward declarations.
class CommonOperatorBuilder;
struct ElementAccess;
class JSGraph;
class Linkage;
class MachineOperatorBuilder;
class Operator;
class ChangeLowering final : public Reducer {
public:
explicit ChangeLowering(JSGraph* jsgraph) : jsgraph_(jsgraph) {}
~ChangeLowering() final;
Reduction Reduce(Node* node) final;
private:
Node* HeapNumberValueIndexConstant();
Node* SmiMaxValueConstant();
Node* SmiShiftBitsConstant();
Node* AllocateHeapNumberWithValue(Node* value, Node* control);
Node* ChangeInt32ToFloat64(Node* value);
Node* ChangeInt32ToSmi(Node* value);
Node* ChangeSmiToFloat64(Node* value);
Node* ChangeSmiToInt32(Node* value);
Node* ChangeUint32ToFloat64(Node* value);
Node* ChangeUint32ToSmi(Node* value);
Node* LoadHeapNumberValue(Node* value, Node* control);
Node* TestNotSmi(Node* value);
Reduction ChangeBitToBool(Node* value, Node* control);
Reduction ChangeBoolToBit(Node* value);
Reduction ChangeFloat64ToTagged(Node* value, Node* control);
Reduction ChangeInt32ToTagged(Node* value, Node* control);
Reduction ChangeTaggedToFloat64(Node* value, Node* control);
Reduction ChangeTaggedToUI32(Node* value, Node* control,
Signedness signedness);
Reduction ChangeUint32ToTagged(Node* value, Node* control);
Reduction LoadField(Node* node);
Reduction StoreField(Node* node);
Reduction LoadElement(Node* node);
Reduction StoreElement(Node* node);
Reduction Allocate(Node* node);
Node* IsSmi(Node* value);
Node* LoadHeapObjectMap(Node* object, Node* control);
Node* LoadMapInstanceType(Node* map);
Reduction ObjectIsNumber(Node* node);
Reduction ObjectIsReceiver(Node* node);
Reduction ObjectIsSmi(Node* node);
Node* ComputeIndex(const ElementAccess& access, Node* const key);
Graph* graph() const;
Isolate* isolate() const;
JSGraph* jsgraph() const { return jsgraph_; }
CommonOperatorBuilder* common() const;
MachineOperatorBuilder* machine() const;
JSGraph* const jsgraph_;
SetOncePointer<const Operator> allocate_heap_number_operator_;
};
} // namespace compiler
} // namespace internal
} // namespace v8
#endif // V8_COMPILER_CHANGE_LOWERING_H_
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