1 files changed, 6 insertions, 3 deletions
diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index 41c4fd0e6c0..29846b61010 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -2029,9 +2029,12 @@ VarDecl::isThisDeclarationADefinition(ASTContext &C) const {
   // A variable template specialization (other than a static data member
   // template or an explicit specialization) is a declaration until we
   // instantiate its initializer.
-  if (isa<VarTemplateSpecializationDecl>(this) &&
-      getTemplateSpecializationKind() != TSK_ExplicitSpecialization)
-    return DeclarationOnly;
+  if (auto *VTSD = dyn_cast<VarTemplateSpecializationDecl>(this)) {
+    if (VTSD->getTemplateSpecializationKind() != TSK_ExplicitSpecialization &&
+        !isa<VarTemplatePartialSpecializationDecl>(VTSD) &&
+        !VTSD->IsCompleteDefinition)
+      return DeclarationOnly;
+  }
 
   if (hasExternalStorage())
     return DeclarationOnly;