1 files changed, 5 insertions, 0 deletions
diff --git a/lib/DebugInfo/CodeView/TypeDatabase.cpp b/lib/DebugInfo/CodeView/TypeDatabase.cpp
index efaba4646ffe..5b8841041f88 100644
--- a/lib/DebugInfo/CodeView/TypeDatabase.cpp
+++ b/lib/DebugInfo/CodeView/TypeDatabase.cpp
@@ -65,6 +65,11 @@ static const SimpleTypeEntry SimpleTypeNames[] = {
     {"__bool64*", SimpleTypeKind::Boolean64},
 };
 
+TypeDatabase::TypeDatabase(uint32_t ExpectedSize) : TypeNameStorage(Allocator) {
+  CVUDTNames.reserve(ExpectedSize);
+  TypeRecords.reserve(ExpectedSize);
+}
+
 /// Gets the type index for the next type record.
 TypeIndex TypeDatabase::getNextTypeIndex() const {
   return TypeIndex(TypeIndex::FirstNonSimpleIndex + CVUDTNames.size());