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// Copyright 2015 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_LOOP_PEELING_H_
#define V8_COMPILER_LOOP_PEELING_H_
#include "src/compiler/loop-analysis.h"
namespace v8 {
namespace internal {
namespace compiler {
// Represents the output of peeling a loop, which is basically the mapping
// from the body of the loop to the corresponding nodes in the peeled
// iteration.
class PeeledIteration : public ZoneObject {
public:
// Maps {node} to its corresponding copy in the peeled iteration, if
// the node was part of the body of the loop. Returns {node} otherwise.
Node* map(Node* node);
protected:
PeeledIteration() {}
};
class CommonOperatorBuilder;
// Implements loop peeling.
class LoopPeeler {
public:
static PeeledIteration* Peel(Graph* graph, CommonOperatorBuilder* common,
LoopTree* loop_tree, LoopTree::Loop* loop,
Zone* tmp_zone);
};
} // namespace compiler
} // namespace internal
} // namespace v8
#endif // V8_COMPILER_LOOP_PEELING_H_
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