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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_OPERATOR_REDUCERS_H_
#define V8_COMPILER_OPERATOR_REDUCERS_H_
#include "src/compiler/graph-reducer.h"
#include "src/compiler/js-graph.h"
#include "src/compiler/lowering-builder.h"
#include "src/compiler/machine-operator.h"
#include "src/compiler/node.h"
#include "src/compiler/simplified-operator.h"
namespace v8 {
namespace internal {
namespace compiler {
// Lowers JS-level operators to simplified operators based on types.
class JSTypedLowering : public LoweringBuilder {
public:
explicit JSTypedLowering(JSGraph* jsgraph,
SourcePositionTable* source_positions)
: LoweringBuilder(jsgraph->graph(), source_positions),
jsgraph_(jsgraph),
simplified_(jsgraph->zone()),
machine_(jsgraph->zone()) {}
virtual ~JSTypedLowering() {}
Reduction Reduce(Node* node);
virtual void Lower(Node* node) { Reduce(node); }
JSGraph* jsgraph() { return jsgraph_; }
Graph* graph() { return jsgraph_->graph(); }
private:
friend class JSBinopReduction;
JSGraph* jsgraph_;
SimplifiedOperatorBuilder simplified_;
MachineOperatorBuilder machine_;
Reduction ReplaceEagerly(Node* old, Node* node);
Reduction NoChange() { return Reducer::NoChange(); }
Reduction ReplaceWith(Node* node) { return Reducer::Replace(node); }
Reduction Changed(Node* node) { return Reducer::Changed(node); }
Reduction ReduceJSAdd(Node* node);
Reduction ReduceJSComparison(Node* node);
Reduction ReduceJSEqual(Node* node, bool invert);
Reduction ReduceJSStrictEqual(Node* node, bool invert);
Reduction ReduceJSToNumberInput(Node* input);
Reduction ReduceJSToStringInput(Node* input);
Reduction ReduceJSToBooleanInput(Node* input);
Reduction ReduceNumberBinop(Node* node, Operator* numberOp);
Reduction ReduceI32Binop(Node* node, bool left_signed, bool right_signed,
Operator* intOp);
Reduction ReduceI32Shift(Node* node, bool left_signed, Operator* shift_op);
JSOperatorBuilder* javascript() { return jsgraph_->javascript(); }
CommonOperatorBuilder* common() { return jsgraph_->common(); }
SimplifiedOperatorBuilder* simplified() { return &simplified_; }
MachineOperatorBuilder* machine() { return &machine_; }
};
}
}
} // namespace v8::internal::compiler
#endif // V8_COMPILER_OPERATOR_REDUCERS_H_
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