1 //===- llvm/IR/UseListOrder.h - LLVM Use List Order -------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file has structures and command-line options for preserving use-list 11 // order. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_IR_USELISTORDER_H 16 #define LLVM_IR_USELISTORDER_H 17 18 #include <cstddef> 19 #include <vector> 20 21 namespace llvm { 22 23 class Function; 24 class Value; 25 26 /// \brief Structure to hold a use-list order. 27 struct UseListOrder { 28 const Value *V = nullptr; 29 const Function *F = nullptr; 30 std::vector<unsigned> Shuffle; 31 32 UseListOrder(const Value *V, const Function *F, size_t ShuffleSize) 33 : V(V), F(F), Shuffle(ShuffleSize) {} 34 35 UseListOrder() = default; 36 UseListOrder(UseListOrder &&) = default; 37 UseListOrder &operator=(UseListOrder &&) = default; 38 }; 39 40 using UseListOrderStack = std::vector<UseListOrder>; 41 42 } // end namespace llvm 43 44 #endif // LLVM_IR_USELISTORDER_H 45
