1 files changed, 12 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/DIE.h b/include/llvm/CodeGen/DIE.h
index 95c4b4248bbd0..a40147336fe2c 100644
--- a/include/llvm/CodeGen/DIE.h
+++ b/include/llvm/CodeGen/DIE.h
@@ -793,6 +793,9 @@ class DIEUnit {
   uint32_t Length; /// The length in bytes of all of the DIEs in this unit.
   const uint16_t Version; /// The Dwarf version number for this unit.
   const uint8_t AddrSize; /// The size in bytes of an address for this unit.
+protected:
+  ~DIEUnit() = default;
+
 public:
   DIEUnit(uint16_t Version, uint8_t AddrSize, dwarf::Tag UnitTag);
   DIEUnit(const DIEUnit &RHS) = delete;
@@ -808,6 +811,10 @@ public:
     this->Section = Section;
   }
 
+  virtual const MCSymbol *getCrossSectionRelativeBaseAddress() const {
+    return nullptr;
+  }
+
   /// Return the section that this DIEUnit will be emitted into.
   ///
   /// \returns Section pointer which can be NULL.
@@ -822,7 +829,11 @@ public:
   const DIE &getUnitDie() const { return Die; }
 };
 
-  
+struct BasicDIEUnit final : DIEUnit {
+  BasicDIEUnit(uint16_t Version, uint8_t AddrSize, dwarf::Tag UnitTag)
+      : DIEUnit(Version, AddrSize, UnitTag) {}
+};
+
 //===--------------------------------------------------------------------===//
 /// DIELoc - Represents an expression location.
 //