1 files changed, 4 insertions, 1 deletions
diff --git a/test/PCH/pragma-diag-section.cpp b/test/PCH/pragma-diag-section.cpp
index 312f720ebd987..5b996bb2f0d16 100644
--- a/test/PCH/pragma-diag-section.cpp
+++ b/test/PCH/pragma-diag-section.cpp
@@ -12,7 +12,10 @@
 #pragma clang diagnostic ignored "-Wtautological-compare"
 template <typename T>
 struct TS {
-    void m() { T b = b==b; }
+    void m() {
+      T a = 0;
+      T b = a==a;
+    }
 };
 #pragma clang diagnostic pop