1 files changed, 10 insertions, 0 deletions
diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index 9571a26845..676063ac08 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -2234,6 +2234,16 @@ Sema::BuildDelegatingInitializer(TypeSourceInfo *TInfo, Expr *Init,
   if (DelegationInit.isInvalid())
     return true;
 
+  // If we are in a dependent context, template instantiation will
+  // perform this type-checking again. Just save the arguments that we
+  // received in a ParenListExpr.
+  // FIXME: This isn't quite ideal, since our ASTs don't capture all
+  // of the information that we have about the base
+  // initializer. However, deconstructing the ASTs is a dicey process,
+  // and this approach is far more likely to get the corner cases right.
+  if (CurContext->isDependentContext())
+    DelegationInit = Owned(Init);
+
   return new (Context) CXXCtorInitializer(Context, TInfo, InitRange.getBegin(), 
                                           DelegationInit.takeAs<Expr>(),
                                           InitRange.getEnd());