3 files changed, 30 insertions, 0 deletions
diff --git a/clang/test/Preprocessor/macro_disable.c b/clang/test/Preprocessor/macro_disable.c
new file mode 100644
index 00000000000..33b856d8f64
--- /dev/null
+++ b/clang/test/Preprocessor/macro_disable.c
@@ -0,0 +1,13 @@
+// RUN: clang -E %s | grep 'a: 2 + M_0(3)(4)(5);' &&
+// RUN: clang -E %s | grep 'b: 4 + 4 + 3 + 2 + 1 + M_0(3)(2)(1);'
+
+#define M_0(x) M_ ## x 
+#define M_1(x) x + M_0(0) 
+#define M_2(x) x + M_1(1) 
+#define M_3(x) x + M_2(2) 
+#define M_4(x) x + M_3(3) 
+#define M_5(x) x + M_4(4) 
+
+a: M_0(1)(2)(3)(4)(5);
+b: M_0(5)(4)(3)(2)(1);
+
diff --git a/clang/test/Preprocessor/macro_disable2.c b/clang/test/Preprocessor/macro_disable2.c
new file mode 100644
index 00000000000..6e1f80469c3
--- /dev/null
+++ b/clang/test/Preprocessor/macro_disable2.c
@@ -0,0 +1,8 @@
+// RUN: clang -E %s | grep 'A B C A B A C A B C A'
+
+#define A A B C 
+#define B B C A 
+#define C C A B 
+ 
+A 
+
diff --git a/clang/test/Preprocessor/macro_not_define.c b/clang/test/Preprocessor/macro_not_define.c
new file mode 100644
index 00000000000..388481a90e8
--- /dev/null
+++ b/clang/test/Preprocessor/macro_not_define.c
@@ -0,0 +1,9 @@
+// RUN: clang -E %s | grep '^ # define X 3$'
+
+#define H # 
+ #define D define 
+ 
+ #define DEFINE(a, b) H D a b 
+ 
+ DEFINE(X, 3) 
+