1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr28712.c b/gcc/testsuite/gcc.dg/pr28712.c
new file mode 100644
index 00000000000..0bbb45314cf
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr28712.c
@@ -0,0 +1,16 @@
+/* PR c/28712 */
+/* { dg-do compile } */
+/* { dg-options "--combine" } */
+/* { dg-additional-sources "pr28712.c pr28712.c" } */
+
+struct A;
+
+extern struct A *a;
+
+struct A { } __attribute__((packed));
+
+struct B __attribute__((aligned (sizeof (int))));
+
+extern struct B *b;
+
+struct B { int i; } __attribute__((packed));