diff --git a/clang/test/Analysis/ptr-arith.c b/clang/test/Analysis/ptr-arith.c
index f77d7f5ee5ad23d1d0d1ad56818881d58a7ffd40..fd780e8e1066efad9ae1292f883cb70d961cb42f 100644
--- a/clang/test/Analysis/ptr-arith.c
+++ b/clang/test/Analysis/ptr-arith.c
@@ -55,3 +55,8 @@ void f5() {
   int a[10];
   p = a + 1; // no-warning
 }
+
+// Allow arithmetic on different symbolic regions.
+void f6(int *p, int *q) {
+  int d = q - p; // no-warning
+}