2 files changed, 8 insertions, 0 deletions
diff --git a/clang/test/Index/ignore-warnings-from-headers.cpp b/clang/test/Index/ignore-warnings-from-headers.cpp
new file mode 100644
index 00000000000..3b8d765c4a6
--- /dev/null
+++ b/clang/test/Index/ignore-warnings-from-headers.cpp
@@ -0,0 +1,7 @@
+#include "ignore-warnings-from-headers.h"
+
+void g(int unusedInMainFile) {}
+
+// RUN: env CINDEXTEST_IGNORE_NONERRORS_FROM_INCLUDED_FILES=1 c-index-test -test-load-source function %s -Wunused-parameter 2>&1 | FileCheck %s
+// CHECK-NOT: warning: unused parameter 'unusedInHeader'
+// CHECK: warning: unused parameter 'unusedInMainFile'
diff --git a/clang/test/Index/ignore-warnings-from-headers.h b/clang/test/Index/ignore-warnings-from-headers.h
new file mode 100644
index 00000000000..84c249a7f5d
--- /dev/null
+++ b/clang/test/Index/ignore-warnings-from-headers.h
@@ -0,0 +1 @@
+void f(int unusedInHeader) {}