diff --git a/test/Preprocessor/dump-options.c b/test/Preprocessor/dump-options.c
new file mode 100644
index 0000000..6910e1a
--- /dev/null
+++ b/test/Preprocessor/dump-options.c
@@ -0,0 +1,3 @@
+// RUN: clang %s -E -dD | grep __INTMAX_MAX__ &&
+// RUN: clang %s -E -dM | grep __INTMAX_MAX__
+