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      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