1 files changed, 23 insertions, 0 deletions
diff --git a/clang/test/Analysis/outofbound.c b/clang/test/Analysis/outofbound.c
index 45325e92f37..e1ff66ccf4d 100644
--- a/clang/test/Analysis/outofbound.c
+++ b/clang/test/Analysis/outofbound.c
@@ -13,3 +13,26 @@ void f2() {
   int *p = malloc(12);
   p[3] = 4; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
 }
+
+struct three_words {
+  int c[3];
+};
+
+struct seven_words {
+  int c[7];
+};
+
+void f3() {
+  struct three_words a, *p;
+  p = &a;
+  p[0] = a; // no-warning
+  p[1] = a; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
+}
+
+void f4() {
+  struct seven_words c;
+  struct three_words a, *p = (struct three_words *)&c;
+  p[0] = a; // no-warning
+  p[1] = a; // no-warning
+  p[2] = a; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
+}