Comma does not perform unary promotions, rdar://6095180
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54045 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/expr-comma.c b/test/Sema/expr-comma.c
new file mode 100644
index 0000000..7a601e9
--- /dev/null
+++ b/test/Sema/expr-comma.c
@@ -0,0 +1,11 @@
+// RUN: clang %s -fsyntax-only -verify
+// rdar://6095180
+
+#include <assert.h>
+struct s { char c[17]; };
+extern struct s foo (void);
+
+// sizeof 'c' should be 17, not sizeof(char*).
+int X[sizeof(0, (foo().c)) == 17 ? 1 : -1];
+
+