1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/inherit/union1.C b/gcc/testsuite/g++.dg/inherit/union1.C
new file mode 100644
index 000000000..da46096c8
--- /dev/null
+++ b/gcc/testsuite/g++.dg/inherit/union1.C
@@ -0,0 +1,14 @@
+// PR c++/15507
+
+struct A {
+  // empty
+};
+
+struct B : A {
+  int b;
+};
+
+union U {
+  A a;
+  B b;
+};