diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.h b/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.h
--- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.h
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.h
@@ -235,15 +235,7 @@
   /// Return a rangelist's offset based on an index. The index designates
   /// an entry in the rangelist table's offset array and is supplied by
   /// DW_FORM_rnglistx.
-  llvm::Optional<uint64_t> GetRnglistOffset(uint32_t Index) const {
-    if (!m_rnglist_table)
-      return llvm::None;
-    if (llvm::Optional<uint64_t> off = m_rnglist_table->getOffsetEntry(
-            m_dwarf.GetDWARFContext().getOrLoadRngListsData().GetAsLLVM(),
-            Index))
-      return *off + m_ranges_base;
-    return llvm::None;
-  }
+  llvm::Optional<uint64_t> GetRnglistOffset(uint32_t Index) const;
 
   llvm::Optional<uint64_t> GetLoclistOffset(uint32_t Index) {
     if (!m_loclist_table_header)
@@ -291,6 +283,8 @@
     return &m_die_array[0];
   }
 
+  llvm::Optional<llvm::DWARFDebugRnglistTable> GetRnglist();
+
   SymbolFileDWARF &m_dwarf;
   std::shared_ptr<DWARFUnit> m_dwo;
   DWARFUnitHeader m_header;
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp b/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp
--- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp
+++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp
@@ -495,6 +495,19 @@
         ranges_base, toString(table_or_error.takeError()).c_str());
 }
 
+llvm::Optional<llvm::DWARFDebugRnglistTable> DWARFUnit::GetRnglist() {
+  return m_rnglist_table;
+}
+
+llvm::Optional<uint64_t> DWARFUnit::GetRnglistOffset(uint32_t Index) const {
+  if (!GetRnglist())
+    return llvm::None;
+  if (llvm::Optional<uint64_t> off = GetRnglist()->getOffsetEntry(
+          m_dwarf.GetDWARFContext().getOrLoadRngListsData().GetAsLLVM(), Index))
+    return *off + m_ranges_base;
+  return llvm::None;
+}
+
 void DWARFUnit::SetStrOffsetsBase(dw_offset_t str_offsets_base) {
   m_str_offsets_base = str_offsets_base;
 }
@@ -936,11 +949,11 @@
     return ranges;
   }
 
-  if (!m_rnglist_table)
+  if (!GetRnglist())
     return llvm::createStringError(errc::invalid_argument,
                                    "missing or invalid range list table");
 
-  auto range_list_or_error = m_rnglist_table->findList(
+  auto range_list_or_error = GetRnglist()->findList(
       m_dwarf.GetDWARFContext().getOrLoadRngListsData().GetAsLLVM(), offset);
   if (!range_list_or_error)
     return range_list_or_error.takeError();
@@ -971,7 +984,7 @@
 DWARFUnit::FindRnglistFromIndex(uint32_t index) {
   if (llvm::Optional<uint64_t> offset = GetRnglistOffset(index))
     return FindRnglistFromOffset(*offset);
-  if (m_rnglist_table)
+  if (GetRnglist())
     return llvm::createStringError(errc::invalid_argument,
                                    "invalid range list table index %d", index);