Dimitry Andric 0b57cec536 Move all sources from the llvm project into contrib/llvm-project.
This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.
2019-12-20 19:53:05 +00:00

59 lines
1.4 KiB
C++

//===- MetadataImpl.h - Helpers for implementing metadata -----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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