--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/unaligned-1.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,49 @@
+/* PR middle-end/7847 */
+/* Originator: <jk@tools.de> */
+/* { dg-do run } */
+
+/* This used to fail on SPARC at runtime because of
+   an unaligned memory access.  */
+
+typedef char int8_t;
+typedef short int16_t;
+typedef int int32_t;
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+
+typedef struct {
+    uint32_t address;
+    uint16_t size;
+} __attribute__ ((packed)) sml_agl_data_t;
+
+typedef struct {
+  sml_agl_data_t data[9];
+} __attribute__ ((packed)) sml_agli_t;
+
+typedef struct {
+  sml_agli_t sml_agli;
+} __attribute__ ((packed)) dsi_t;
+
+typedef struct {
+  int a;
+  dsi_t dsi_pack;
+} dvd_priv_t;
+
+int dvd_read_sector(dvd_priv_t *d, unsigned char* data)
+{
+  int i, skip=0;
+
+  for (i=0; i < 9; i++)
+    if ((skip=d->dsi_pack.sml_agli.data[i].address) != 0)
+      break;
+
+  return skip;
+}
+
+int main(void)
+{
+  static dvd_priv_t dvd_priv;
+  dvd_read_sector(&dvd_priv, 0);
+  return 0;
+}