//===- MetadataImpl.h - Helpers for implementing metadata -----------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // // This file has private helpers for implementing metadata types. // //===----------------------------------------------------------------------===// #ifndef LLVM_IR_METADATAIMPL_H #define LLVM_IR_METADATAIMPL_H #include "llvm/ADT/DenseSet.h" #include "llvm/IR/Metadata.h" namespace llvm { template <class T, class InfoT> static T *getUniqued(DenseSet<T *, InfoT> &Store, const typename InfoT::KeyTy &Key) { auto I = Store.find_as(Key); return I == Store.end() ? nullptr : *I; } template <class T> T *MDNode::storeImpl(T *N, StorageType Storage) { switch (Storage) { case Uniqued: llvm_unreachable("Cannot unique without a uniquing-store"); case Distinct: N->storeDistinctInContext(); break; case Temporary: break; } return N; } template <class T, class StoreT> T *MDNode::storeImpl(T *N, StorageType Storage, StoreT &Store) { switch (Storage) { case Uniqued: Store.insert(N); break; case Distinct: N->storeDistinctInContext(); break; case Temporary: break; } return N; } } // end namespace llvm #endif |