Driver: Split out CPP specific options for clang so that we don't end
up adding them twice when running with -no-integrated-cpp or
-save-temps.
 - <rdar://problem/6766636> -save-temps falls over with prefix headers


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@68660 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/clang_cpp.c b/test/Driver/clang_cpp.c
new file mode 100644
index 0000000..fdbb321
--- /dev/null
+++ b/test/Driver/clang_cpp.c
@@ -0,0 +1,4 @@
+// Verify that -include isn't included twice with -save-temps.
+// RUN: clang -S -o - %s -include %t.h -save-temps -### 2> %t.log &&
+// RUN: grep '"-include' %t.log | count 1
+