1 files changed, 87 insertions, 0 deletions
diff --git a/third_party/llvm-project/include/llvm/DebugInfo/DWARF/DWARFDebugAbbrev.h b/third_party/llvm-project/include/llvm/DebugInfo/DWARF/DWARFDebugAbbrev.h
new file mode 100644
index 000000000..1398e1625
--- /dev/null
+++ b/third_party/llvm-project/include/llvm/DebugInfo/DWARF/DWARFDebugAbbrev.h
@@ -0,0 +1,87 @@
+//===- DWARFDebugAbbrev.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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_DWARFDEBUGABBREV_H
+#define LLVM_DEBUGINFO_DWARFDEBUGABBREV_H
+
+#include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h"
+#include "llvm/Support/DataExtractor.h"
+#include <cstdint>
+#include <map>
+#include <vector>
+
+namespace llvm {
+
+class raw_ostream;
+
+class DWARFAbbreviationDeclarationSet {
+  uint64_t Offset;
+  /// Code of the first abbreviation, if all abbreviations in the set have
+  /// consecutive codes. UINT32_MAX otherwise.
+  uint32_t FirstAbbrCode;
+  std::vector<DWARFAbbreviationDeclaration> Decls;
+
+  using const_iterator =
+      std::vector<DWARFAbbreviationDeclaration>::const_iterator;
+
+public:
+  DWARFAbbreviationDeclarationSet();
+
+  uint64_t getOffset() const { return Offset; }
+  void dump(raw_ostream &OS) const;
+  bool extract(DataExtractor Data, uint64_t *OffsetPtr);
+
+  const DWARFAbbreviationDeclaration *
+  getAbbreviationDeclaration(uint32_t AbbrCode) const;
+
+  const_iterator begin() const {
+    return Decls.begin();
+  }
+
+  const_iterator end() const {
+    return Decls.end();
+  }
+
+private:
+  void clear();
+};
+
+class DWARFDebugAbbrev {
+  using DWARFAbbreviationDeclarationSetMap =
+      std::map<uint64_t, DWARFAbbreviationDeclarationSet>;
+
+  mutable DWARFAbbreviationDeclarationSetMap AbbrDeclSets;
+  mutable DWARFAbbreviationDeclarationSetMap::const_iterator PrevAbbrOffsetPos;
+  mutable Optional<DataExtractor> Data;
+
+public:
+  DWARFDebugAbbrev();
+
+  const DWARFAbbreviationDeclarationSet *
+  getAbbreviationDeclarationSet(uint64_t CUAbbrOffset) const;
+
+  void dump(raw_ostream &OS) const;
+  void parse() const;
+  void extract(DataExtractor Data);
+
+  DWARFAbbreviationDeclarationSetMap::const_iterator begin() const {
+    parse();
+    return AbbrDeclSets.begin();
+  }
+
+  DWARFAbbreviationDeclarationSetMap::const_iterator end() const {
+    return AbbrDeclSets.end();
+  }
+
+private:
+  void clear();
+};
+
+} // end namespace llvm
+
+#endif // LLVM_DEBUGINFO_DWARFDEBUGABBREV_H