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-rw-r--r--test/Preprocessor/macro_expand_empty.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/test/Preprocessor/macro_expand_empty.c b/test/Preprocessor/macro_expand_empty.c
new file mode 100644
index 0000000..3fb6394
--- /dev/null
+++ b/test/Preprocessor/macro_expand_empty.c
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 -fsyntax-only %s
+// Check that this doesn't crash
+
+#define IDENTITY1(x) x
+#define IDENTITY2(x) IDENTITY1(x) IDENTITY1(x) IDENTITY1(x) IDENTITY1(x)
+#define IDENTITY3(x) IDENTITY2(x) IDENTITY2(x) IDENTITY2(x) IDENTITY2(x)
+#define IDENTITY4(x) IDENTITY3(x) IDENTITY3(x) IDENTITY3(x) IDENTITY3(x)
+#define IDENTITY5(x) IDENTITY4(x) IDENTITY4(x) IDENTITY4(x) IDENTITY4(x)
+#define IDENTITY6(x) IDENTITY5(x) IDENTITY5(x) IDENTITY5(x) IDENTITY5(x)
+#define IDENTITY7(x) IDENTITY6(x) IDENTITY6(x) IDENTITY6(x) IDENTITY6(x)
+#define IDENTITY8(x) IDENTITY7(x) IDENTITY7(x) IDENTITY7(x) IDENTITY7(x)
+#define IDENTITY9(x) IDENTITY8(x) IDENTITY8(x) IDENTITY8(x) IDENTITY8(x)
+#define IDENTITY0(x) IDENTITY9(x) IDENTITY9(x) IDENTITY9(x) IDENTITY9(x)
+IDENTITY0()
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