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-rw-r--r--clang/test/Preprocessor/macro_paste_empty.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/clang/test/Preprocessor/macro_paste_empty.c b/clang/test/Preprocessor/macro_paste_empty.c
new file mode 100644
index 0000000..2e26f14
--- /dev/null
+++ b/clang/test/Preprocessor/macro_paste_empty.c
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -E %s | grep 'a:Y'
+// RUN: %clang_cc1 -E %s | grep 'b:Y'
+// RUN: %clang_cc1 -E %s | grep 'c:YY'
+
+#define FOO(X) X ## Y
+a:FOO()
+
+#define FOO2(X) Y ## X
+b:FOO2()
+
+#define FOO3(X) X ## Y ## X ## Y ## X ## X
+c:FOO3()
+