1 files changed, 24 insertions, 0 deletions
diff --git a/clang/test/PCH/chain-empty-initial-namespace.cpp b/clang/test/PCH/chain-empty-initial-namespace.cpp
new file mode 100644
index 0000000..bf15caa
--- /dev/null
+++ b/clang/test/PCH/chain-empty-initial-namespace.cpp
@@ -0,0 +1,24 @@
+// no PCH
+// RUN: %clang_cc1 -include %s -include %s -fsyntax-only %s
+// full PCH
+// RUN: %clang_cc1 -chain-include %s -chain-include %s -fsyntax-only %s
+#if !defined(PASS1)
+#define PASS1
+
+namespace foo {} // no external storage
+
+#elif !defined(PASS2)
+#define PASS2
+
+namespace foo {
+  void bar();
+}
+
+#else
+// PASS3
+
+void test() {
+  foo::bar(); // no-error
+}
+
+#endif