Forward -C and -CC to clang.
- <rdar://problem/6945384> Driver should pass down -C and -CC
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73087 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Frontend/cpp-output.c b/test/Frontend/cpp-output.c
new file mode 100644
index 0000000..ee37f4c
--- /dev/null
+++ b/test/Frontend/cpp-output.c
@@ -0,0 +1,15 @@
+// RUN: clang -E -o %t -C %s &&
+// RUN: grep '^int x; // comment' %t &&
+// RUN: grep '^x x' %t &&
+// RUN: clang -E -o %t -CC %s &&
+// RUN: grep '^int x; // comment' %t &&
+// RUN: grep '^x /\* comment \*/ x /\* comment \*/' %t &&
+// RUN: true
+
+int x; // comment
+
+#define A(foo, bar) foo bar
+#define B x // comment
+
+A(B, B)
+