--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/pr53037-2.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,37 @@
+/* PR c/53037.  */
+/* { dg-do compile } */
+/* { dg-options "-O0 -Wpacked-not-aligned" } */
+
+struct __attribute__ ((aligned (8))) S8 { char a[8]; };
+struct __attribute__ ((packed)) S1 {
+  struct S8 s8;
+}; /* { dg-warning "alignment 1 of 'struct S1' is less than 8" } */
+
+struct __attribute__ ((packed, aligned (8))) S2 {
+  struct S8 s8;
+};
+
+struct __attribute__ ((packed, aligned (8))) S3 {
+  int i1;
+  struct S8 s8; /* { dg-warning "'s8' offset 4 in 'struct S3' isn't aligned to 8" } */
+};
+
+struct __attribute__ ((packed, aligned (8))) S4 {
+  int i1;
+  int i2;
+  struct S8 s8;
+};
+
+struct __attribute__ ((packed)) S5 {
+   long long ll;
+};
+
+union __attribute__ ((packed)) U1 {
+  int i1;
+  struct S8 s8;
+}; /* { dg-warning "alignment 1 of 'union U1' is less than 8" } */
+
+union __attribute__ ((packed, aligned (8))) U2 {
+  int i1;
+  struct S8 s8;
+};