1 //===-- SlotMapping.h - Slot number mapping for unnamed values --*- 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 contains the declaration of the SlotMapping struct.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_ASMPARSER_SLOTMAPPING_H
14 #define LLVM_ASMPARSER_SLOTMAPPING_H
15 
16 #include "llvm/ADT/StringMap.h"
17 #include "llvm/IR/TrackingMDRef.h"
18 #include <map>
19 #include <vector>
20 
21 namespace llvm {
22 
23 class GlobalValue;
24 class Type;
25 
26 /// This struct contains the mappings from the slot numbers to unnamed metadata
27 /// nodes, global values and types. It also contains the mapping for the named
28 /// types.
29 /// It can be used to save the parsing state of an LLVM IR module so that the
30 /// textual references to the values in the module can be parsed outside of the
31 /// module's source.
32 struct SlotMapping {
33   std::vector<GlobalValue *> GlobalValues;
34   std::map<unsigned, TrackingMDNodeRef> MetadataNodes;
35   StringMap<Type *> NamedTypes;
36   std::map<unsigned, Type *> Types;
37 };
38 
39 } // end namespace llvm
40 
41 #endif
42