--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/loop-versioning-7.c	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,32 @@
+/* { dg-options "-O3 -fdump-tree-lversion-details" } */
+
+/* Check that versioning can handle arrays of structures.  */
+
+struct foo {
+  int a, b, c;
+};
+
+void
+f1 (struct foo *x, int stepx, int n)
+{
+  for (int i = 0; i < n; ++i)
+    {
+      x[stepx * i].a = 1;
+      x[stepx * i].b = 2;
+      x[stepx * i].c = 3;
+    }
+}
+
+void
+f2 (struct foo *x, int stepx, int limit)
+{
+  for (int i = 0; i < limit; i += stepx)
+    {
+      x[i].a = 1;
+      x[i].b = 2;
+      x[i].c = 3;
+    }
+}
+
+/* { dg-final { scan-tree-dump-times {want to version containing loop} 2 "lversion" } } */
+/* { dg-final { scan-tree-dump-times {versioned this loop} 2 "lversion" } } */