1 files changed, 16 insertions, 0 deletions
diff --git a/clang/test/Lexer/counter.c b/clang/test/Lexer/counter.c
new file mode 100644
index 0000000..2173730
--- /dev/null
+++ b/clang/test/Lexer/counter.c
@@ -0,0 +1,16 @@
+// __COUNTER__ support: rdar://4329310
+// RUN: %clang -E %s > %t
+
+#define PASTE2(x,y) x##y
+#define PASTE1(x,y) PASTE2(x,y)
+#define UNIQUE(x) PASTE1(x,__COUNTER__)
+
+// RUN: grep "A: 0" %t
+A: __COUNTER__
+
+// RUN: grep "B: foo1" %t
+B: UNIQUE(foo);
+// RUN: grep "C: foo2" %t
+C: UNIQUE(foo);
+// RUN: grep "D: 3" %t
+D: __COUNTER__