PR20256: don't accidentally instantiate non-dependent default-initialization as

value-initialization.

llvm-svn: 212764

1 files changed, 7 insertions, 0 deletions

diff --git a/clang/lib/Sema/TreeTransform.h b/clang/lib/Sema/TreeTransform.h
index 5626ad59241..269a3bd8a84 100644
--- a/clang/lib/Sema/TreeTransform.h
+++ b/clang/lib/Sema/TreeTransform.h
@@ -2891,6 +2891,13 @@ ExprResult TreeTransform<Derived>::TransformInitializer(Expr *Init,
 
   // Build a ParenListExpr to represent anything else.
   SourceRange Parens = Construct->getParenOrBraceRange();
+  if (Parens.isInvalid()) {
+    // This was a variable declaration's initialization for which no initializer
+    // was specified.
+    assert(NewArgs.empty() &&
+           "no parens or braces but have direct init with arguments?");
+    return ExprEmpty();
+  }
   return getDerived().RebuildParenListExpr(Parens.getBegin(), NewArgs,
                                            Parens.getEnd());
 }