1 files changed, 15 insertions, 0 deletions
diff --git a/clang/test/Preprocessor/cxx_not.cpp b/clang/test/Preprocessor/cxx_not.cpp
new file mode 100644
index 0000000..67e8775
--- /dev/null
+++ b/clang/test/Preprocessor/cxx_not.cpp
@@ -0,0 +1,15 @@
+// RUN: %clang_cc1 -DA=1 -E %s | grep 'int a = 927 == 927'
+// RUN: %clang_cc1 -E %s | grep 'int a = 37 == 37'
+#if not defined(A)
+#define X 37
+#else
+#define X 927
+#endif
+
+#if ! defined(A)
+#define Y 37
+#else
+#define Y 927
+#endif
+
+int a = X == Y;