1 files changed, 7 insertions, 2 deletions
diff --git a/lib/Sema/SemaTemplateInstantiate.cpp b/lib/Sema/SemaTemplateInstantiate.cpp
index 793ee0e50a..3635e64f3d 100644
--- a/lib/Sema/SemaTemplateInstantiate.cpp
+++ b/lib/Sema/SemaTemplateInstantiate.cpp
@@ -1594,8 +1594,13 @@ ParmVarDecl *Sema::SubstParmVarDecl(ParmVarDecl *OldParm,
   } else if (OldParm->hasUnparsedDefaultArg()) {
     NewParm->setUnparsedDefaultArg();
     UnparsedDefaultArgInstantiations[OldParm].push_back(NewParm);
-  } else if (Expr *Arg = OldParm->getDefaultArg())
-    NewParm->setUninstantiatedDefaultArg(Arg);
+  } else if (Expr *Arg = OldParm->getDefaultArg()) {
+    if (Arg->isInstantiationDependent() ||
+        OldDI->getType()->isInstantiationDependentType())
+      NewParm->setUninstantiatedDefaultArg(Arg);
+    else
+      NewParm->setDefaultArg(Arg);
+  }
 
   NewParm->setHasInheritedDefaultArg(OldParm->hasInheritedDefaultArg());