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//===- OutlinedHashTreeRecord.h --------------------------------*- C++ -*-===//
//
// 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 defines the OutlinedHashTreeRecord class. This class holds the outlined
// hash tree for both serialization and deserialization processes. It utilizes
// two data formats for serialization: raw binary data and YAML.
// These two formats can be used interchangeably.
//
//===---------------------------------------------------------------------===//
#ifndef LLVM_CODEGENDATA_OUTLINEDHASHTREERECORD_H
#define LLVM_CODEGENDATA_OUTLINEDHASHTREERECORD_H
#include "llvm/CodeGenData/OutlinedHashTree.h"
namespace llvm {
/// HashNodeStable is the serialized, stable, and compact representation
/// of a HashNode.
struct HashNodeStable {
llvm::yaml::Hex64 Hash;
unsigned Terminals;
std::vector<unsigned> SuccessorIds;
};
using IdHashNodeStableMapTy = std::map<unsigned, HashNodeStable>;
using IdHashNodeMapTy = DenseMap<unsigned, HashNode *>;
using HashNodeIdMapTy = DenseMap<const HashNode *, unsigned>;
struct OutlinedHashTreeRecord {
std::unique_ptr<OutlinedHashTree> HashTree;
OutlinedHashTreeRecord() { HashTree = std::make_unique<OutlinedHashTree>(); }
OutlinedHashTreeRecord(std::unique_ptr<OutlinedHashTree> HashTree)
: HashTree(std::move(HashTree)) {};
/// Serialize the outlined hash tree to a raw_ostream.
void serialize(raw_ostream &OS) const;
/// Deserialize the outlined hash tree from a raw_ostream.
void deserialize(const unsigned char *&Ptr);
/// Serialize the outlined hash tree to a YAML stream.
void serializeYAML(yaml::Output &YOS) const;
/// Deserialize the outlined hash tree from a YAML stream.
void deserializeYAML(yaml::Input &YIS);
/// Merge the other outlined hash tree into this one.
void merge(const OutlinedHashTreeRecord &Other) {
HashTree->merge(Other.HashTree.get());
}
/// \returns true if the outlined hash tree is empty.
bool empty() const { return HashTree->empty(); }
/// Print the outlined hash tree in a YAML format.
void print(raw_ostream &OS = llvm::errs()) const {
yaml::Output YOS(OS);
serializeYAML(YOS);
}
private:
/// Convert the outlined hash tree to stable data.
void convertToStableData(IdHashNodeStableMapTy &IdNodeStableMap) const;
/// Convert the stable data back to the outlined hash tree.
void convertFromStableData(const IdHashNodeStableMapTy &IdNodeStableMap);
};
} // end namespace llvm
#endif // LLVM_CODEGENDATA_OUTLINEDHASHTREERECORD_H
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