1 files changed, 26 insertions, 0 deletions
diff --git a/test/Misc/caret-diags-macros.c b/test/Misc/caret-diags-macros.c
new file mode 100644
index 0000000..58d293f
--- /dev/null
+++ b/test/Misc/caret-diags-macros.c
@@ -0,0 +1,26 @@
+// RUN: clang-cc -fsyntax-only %s > %t 2>&1 &&
+
+#define M1(x) x
+
+// RUN: grep ":6:12: note: instantiated from:" %t &&
+#define M2 1;
+
+void foo() {
+ // RUN: grep ":10:2: warning: expression result unused" %t &&
+ M1(
+ // RUN: grep ":12:5: note: instantiated from:" %t &&
+    M2)
+}
+
+// RUN: grep ":16:11: note: instantiated from:" %t &&
+#define A 1
+// RUN: grep ":18:11: note: instantiated from:" %t &&
+#define B A
+// RUN: grep ":20:11: note: instantiated from:" %t &&
+#define C B
+
+void bar() {
+  // RUN: grep  ":24:3: warning: expression result unused" %t
+  C;
+}
+