1 files changed, 15 insertions, 0 deletions
diff --git a/test/Sema/builtin-object-size.c b/test/Sema/builtin-object-size.c
index 14674c66f3a6..300c739bbd14 100644
--- a/test/Sema/builtin-object-size.c
+++ b/test/Sema/builtin-object-size.c
@@ -76,3 +76,18 @@ int pr28314(void) {
   a += __builtin_object_size(p3->b, 0);
   return a;
 }
+
+int pr31843() {
+  int n = 0;
+
+  struct { int f; } a;
+  int b;
+  n += __builtin_object_size(({&(b ? &a : &a)->f; pr31843;}), 0); // expected-warning{{expression result unused}}
+
+  struct statfs { char f_mntonname[1024];};
+  struct statfs *outStatFSBuf;
+  n += __builtin_object_size(outStatFSBuf->f_mntonname ? "" : "", 1); // expected-warning{{address of array}}
+  n += __builtin_object_size(outStatFSBuf->f_mntonname ?: "", 1);
+
+  return n;
+}