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