1 files changed, 4 insertions, 2 deletions
diff --git a/lldb/source/Core/ValueObjectRegister.cpp b/lldb/source/Core/ValueObjectRegister.cpp
index ec87c38fb367..27461e9cebc4 100644
--- a/lldb/source/Core/ValueObjectRegister.cpp
+++ b/lldb/source/Core/ValueObjectRegister.cpp
@@ -81,7 +81,7 @@ size_t ValueObjectRegisterSet::CalculateNumChildren(uint32_t max) {
   return 0;
 }
 
-uint64_t ValueObjectRegisterSet::GetByteSize() { return 0; }
+llvm::Optional<uint64_t> ValueObjectRegisterSet::GetByteSize() { return 0; }
 
 bool ValueObjectRegisterSet::UpdateValue() {
   m_error.Clear();
@@ -229,7 +229,9 @@ size_t ValueObjectRegister::CalculateNumChildren(uint32_t max) {
   return children_count <= max ? children_count : max;
 }
 
-uint64_t ValueObjectRegister::GetByteSize() { return m_reg_info.byte_size; }
+llvm::Optional<uint64_t> ValueObjectRegister::GetByteSize() {
+  return m_reg_info.byte_size;
+}
 
 bool ValueObjectRegister::UpdateValue() {
   m_error.Clear();