1 | //===- llvm/IR/UseListOrder.h - LLVM Use List Order -------------*- C++ -*-===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | // This file has structures and command-line options for preserving use-list |
10 | // order. |
11 | // |
12 | //===----------------------------------------------------------------------===// |
13 | |
14 | #ifndef LLVM_IR_USELISTORDER_H |
15 | #define LLVM_IR_USELISTORDER_H |
16 | |
17 | #include <cstddef> |
18 | #include <vector> |
19 | |
20 | namespace llvm { |
21 | |
22 | class Function; |
23 | class Value; |
24 | |
25 | /// Structure to hold a use-list order. |
26 | struct UseListOrder { |
27 | const Value *V = nullptr; |
28 | const Function *F = nullptr; |
29 | std::vector<unsigned> Shuffle; |
30 | |
31 | UseListOrder(const Value *V, const Function *F, size_t ShuffleSize) |
32 | : V(V), F(F), Shuffle(ShuffleSize) {} |
33 | |
34 | UseListOrder() = default; |
35 | UseListOrder(UseListOrder &&) = default; |
36 | UseListOrder &operator=(UseListOrder &&) = default; |
37 | }; |
38 | |
39 | using UseListOrderStack = std::vector<UseListOrder>; |
40 | |
41 | } // end namespace llvm |
42 | |
43 | #endif // LLVM_IR_USELISTORDER_H |
44 | |