--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/llvm/test/TableGen/SuperSubclassSameName.td	Thu Feb 13 15:10:13 2020 +0900
@@ -0,0 +1,21 @@
+// RUN: llvm-tblgen < %s
+// XFAIL: vg_leak
+// Test for template arguments that have the same name as superclass template
+// arguments.
+
+
+class Arg { int a; }
+def TheArg : Arg { let a = 1; }
+
+
+class Super<Arg F> {
+  int X = F.a;
+}
+class Sub<Arg F> : Super<F>;
+def inst : Sub<TheArg>;
+
+
+class Super2<int F> {
+  int X = F;
+}
+class Sub2<int F> : Super2<F>;