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//===- llvm/IR/UseListOrder.h - LLVM Use List Order -------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file has structures and command-line options for preserving use-list
// order.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_IR_USELISTORDER_H
#define LLVM_IR_USELISTORDER_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/SmallVector.h"
#include <vector>
namespace llvm {
class Module;
class Function;
class Value;
/// \brief Structure to hold a use-list order.
struct UseListOrder {
const Value *V;
const Function *F;
std::vector<unsigned> Shuffle;
UseListOrder(const Value *V, const Function *F, size_t ShuffleSize)
: V(V), F(F), Shuffle(ShuffleSize) {}
UseListOrder() : V(0), F(0) {}
UseListOrder(UseListOrder &&X)
: V(X.V), F(X.F), Shuffle(std::move(X.Shuffle)) {}
UseListOrder &operator=(UseListOrder &&X) {
V = X.V;
F = X.F;
Shuffle = std::move(X.Shuffle);
return *this;
}
private:
UseListOrder(const UseListOrder &X) = delete;
UseListOrder &operator=(const UseListOrder &X) = delete;
};
typedef std::vector<UseListOrder> UseListOrderStack;
} // end namespace llvm
#endif
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