1 files changed, 62 insertions, 0 deletions
diff --git a/third_party/llvm-project/include/llvm/DebugInfo/DWARF/DWARFDebugInfoEntry.h b/third_party/llvm-project/include/llvm/DebugInfo/DWARF/DWARFDebugInfoEntry.h
new file mode 100644
index 000000000..ded960337
--- /dev/null
+++ b/third_party/llvm-project/include/llvm/DebugInfo/DWARF/DWARFDebugInfoEntry.h
@@ -0,0 +1,62 @@
+//===- DWARFDebugInfoEntry.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_DWARFDEBUGINFOENTRY_H
+#define LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H
+
+#include "llvm/BinaryFormat/Dwarf.h"
+#include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h"
+#include "llvm/DebugInfo/DWARF/DWARFDataExtractor.h"
+#include <cstdint>
+
+namespace llvm {
+
+class DataExtractor;
+class DWARFUnit;
+
+/// DWARFDebugInfoEntry - A DIE with only the minimum required data.
+class DWARFDebugInfoEntry {
+  /// Offset within the .debug_info of the start of this entry.
+  uint64_t Offset = 0;
+
+  /// The integer depth of this DIE within the compile unit DIEs where the
+  /// compile/type unit DIE has a depth of zero.
+  uint32_t Depth = 0;
+
+  const DWARFAbbreviationDeclaration *AbbrevDecl = nullptr;
+
+public:
+  DWARFDebugInfoEntry() = default;
+
+  /// Extracts a debug info entry, which is a child of a given unit,
+  /// starting at a given offset. If DIE can't be extracted, returns false and
+  /// doesn't change OffsetPtr.
+  bool extractFast(const DWARFUnit &U, uint64_t *OffsetPtr);
+
+  /// High performance extraction should use this call.
+  bool extractFast(const DWARFUnit &U, uint64_t *OffsetPtr,
+                   const DWARFDataExtractor &DebugInfoData, uint64_t UEndOffset,
+                   uint32_t Depth);
+
+  uint64_t getOffset() const { return Offset; }
+  uint32_t getDepth() const { return Depth; }
+
+  dwarf::Tag getTag() const {
+    return AbbrevDecl ? AbbrevDecl->getTag() : dwarf::DW_TAG_null;
+  }
+
+  bool hasChildren() const { return AbbrevDecl && AbbrevDecl->hasChildren(); }
+
+  const DWARFAbbreviationDeclaration *getAbbreviationDeclarationPtr() const {
+    return AbbrevDecl;
+  }
+};
+
+} // end namespace llvm
+
+#endif // LLVM_DEBUGINFO_DWARFDEBUGINFOENTRY_H