--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/pr60485-2.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,38 @@
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+
+extern void abort (void);
+struct S {
+    int *i[4];
+    int *p1;
+    int *p2;
+    int *p3;
+    int *p4;
+    int **x;
+};
+int **b;
+int main()
+{
+  int i = 1;
+  struct S s;
+  s.p3 = &i;
+  int **p;
+  if (b)
+    p = b;
+  else
+    p = &s.i[2];
+  p += 4;
+  /* prevert fowrprop from creating an offsetted sd constraint and
+     preserve the pointer offsetting constraint.  */
+  s.x = p;
+  p = s.x;
+  if (!b)
+    {
+      int *z = *p;
+      /* z should point to i (and non-local/escaped).  */
+      *z = 0;
+    }
+  if (i != 0)
+    abort ();
+  return i;
+}