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-rw-r--r--test/Driver/vfsoverlay.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/Driver/vfsoverlay.c b/test/Driver/vfsoverlay.c
new file mode 100644
index 000000000000..6ae494544f9f
--- /dev/null
+++ b/test/Driver/vfsoverlay.c
@@ -0,0 +1,5 @@
+// RUN: %clang -ivfsoverlay foo.h -### %s 2>&1 | FileCheck %s
+// CHECK: "-ivfsoverlay" "foo.h"
+
+// RUN: not %clang -ivfsoverlay foo.h %s 2>&1 | FileCheck -check-prefix=CHECK-MISSING %s
+// CHECK-MISSING: virtual filesystem overlay file 'foo.h' not found