Merge "Update prebuilt Clang to r353983." into p9.0HEADp9.0-backupp9.0

1 files changed, 97 insertions, 0 deletions

diff --git a/clang-r353983/include/llvm/DebugInfo/PDB/Native/TpiStream.h b/clang-r353983/include/llvm/DebugInfo/PDB/Native/TpiStream.h
new file mode 100644
index 00000000..1b7fd2d5
--- /dev/null
+++ b/clang-r353983/include/llvm/DebugInfo/PDB/Native/TpiStream.h
@@ -0,0 +1,97 @@
+//===- TpiStream.cpp - PDB Type Info (TPI) Stream 2 Access ------*- 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_PDB_RAW_PDBTPISTREAM_H
+#define LLVM_DEBUGINFO_PDB_RAW_PDBTPISTREAM_H
+
+#include "llvm/DebugInfo/CodeView/TypeRecord.h"
+#include "llvm/DebugInfo/PDB/Native/HashTable.h"
+#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
+#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
+#include "llvm/DebugInfo/PDB/PDBTypes.h"
+#include "llvm/Support/BinaryStreamArray.h"
+#include "llvm/Support/BinaryStreamRef.h"
+#include "llvm/Support/raw_ostream.h"
+
+#include "llvm/Support/Error.h"
+
+namespace llvm {
+namespace codeview {
+class LazyRandomTypeCollection;
+}
+namespace msf {
+class MappedBlockStream;
+}
+namespace pdb {
+class PDBFile;
+
+class TpiStream {
+  friend class TpiStreamBuilder;
+
+public:
+  TpiStream(PDBFile &File, std::unique_ptr<msf::MappedBlockStream> Stream);
+  ~TpiStream();
+  Error reload();
+
+  PdbRaw_TpiVer getTpiVersion() const;
+
+  uint32_t TypeIndexBegin() const;
+  uint32_t TypeIndexEnd() const;
+  uint32_t getNumTypeRecords() const;
+  uint16_t getTypeHashStreamIndex() const;
+  uint16_t getTypeHashStreamAuxIndex() const;
+
+  uint32_t getHashKeySize() const;
+  uint32_t getNumHashBuckets() const;
+  FixedStreamArray<support::ulittle32_t> getHashValues() const;
+  FixedStreamArray<codeview::TypeIndexOffset> getTypeIndexOffsets() const;
+  HashTable<support::ulittle32_t> &getHashAdjusters();
+
+  codeview::CVTypeRange types(bool *HadError) const;
+  const codeview::CVTypeArray &typeArray() const { return TypeRecords; }
+
+  codeview::LazyRandomTypeCollection &typeCollection() { return *Types; }
+
+  Expected<codeview::TypeIndex>
+  findFullDeclForForwardRef(codeview::TypeIndex ForwardRefTI) const;
+
+  std::vector<codeview::TypeIndex> findRecordsByName(StringRef Name) const;
+
+  codeview::CVType getType(codeview::TypeIndex Index);
+
+  BinarySubstreamRef getTypeRecordsSubstream() const;
+
+  Error commit();
+
+  void buildHashMap();
+
+  bool supportsTypeLookup() const;
+
+private:
+  PDBFile &Pdb;
+  std::unique_ptr<msf::MappedBlockStream> Stream;
+
+  std::unique_ptr<codeview::LazyRandomTypeCollection> Types;
+
+  BinarySubstreamRef TypeRecordsSubstream;
+
+  codeview::CVTypeArray TypeRecords;
+
+  std::unique_ptr<BinaryStream> HashStream;
+  FixedStreamArray<support::ulittle32_t> HashValues;
+  FixedStreamArray<codeview::TypeIndexOffset> TypeIndexOffsets;
+  HashTable<support::ulittle32_t> HashAdjusters;
+
+  std::vector<std::vector<codeview::TypeIndex>> HashMap;
+
+  const TpiStreamHeader *Header;
+};
+}
+}
+
+#endif