1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/warn/Wuninitialized-3.C b/gcc/testsuite/g++.dg/warn/Wuninitialized-3.C
new file mode 100644
index 000000000..dc3be3f67
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wuninitialized-3.C
@@ -0,0 +1,17 @@
+// PR C++/38908
+// { dg-options "-Wuninitialized -O" }
+
+struct empty {};
+
+struct dfs_visitor {
+    dfs_visitor() { }
+    empty m_vis;
+};
+
+void bar(const dfs_visitor&);
+void foo(void)
+{
+  dfs_visitor vis;
+  dfs_visitor vis2 = vis;
+  bar (vis2);
+}