1 files changed, 6 insertions, 0 deletions
diff --git a/clang/lib/AST/ByteCode/MemberPointer.h b/clang/lib/AST/ByteCode/MemberPointer.h
index b17ce25..8dd75ca 100644
--- a/clang/lib/AST/ByteCode/MemberPointer.h
+++ b/clang/lib/AST/ByteCode/MemberPointer.h
@@ -51,6 +51,12 @@ public:
 
   FunctionPointer toFunctionPointer(const Context &Ctx) const;
 
+  bool isBaseCastPossible() const {
+    if (PtrOffset < 0)
+      return true;
+    return static_cast<uint64_t>(PtrOffset) <= Base.getByteOffset();
+  }
+
   Pointer getBase() const {
     if (PtrOffset < 0)
       return Base.atField(-PtrOffset);