--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/vect/slp-34-big-array.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,68 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 64
+
+unsigned short in[N*8];
+unsigned short in2[N*8];
+volatile int y = 0;
+
+int
+main1 ()
+{
+  int i;
+  unsigned short out[N*8];
+  unsigned short out2[N*8];
+
+  for (i = 0; i < N*8; i++)
+    {
+      in[i] = in2[i] = i;
+      if (y) /* Avoid vectorization.  */
+	abort ();
+    }
+
+  /* SLP with unrolling by 8.  */
+  for (i = 0; i < N; i++)
+    {
+      out[i*3] = in[i*3] + 5;
+      out[i*3 + 1] = in[i*3 + 1] + 6;
+      out[i*3 + 2] = in[i*3 + 2] + 16;
+
+      out2[i*5] = in2[i*5] + 2;
+      out2[i*5 + 1] = in2[i*5 + 1] + 2;
+      out2[i*5 + 2] = in2[i*5 + 2] + 1;
+      out2[i*5 + 3] = in2[i*5 + 3] + 3;
+      out2[i*5 + 4] = in2[i*5 + 4] + 13;
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (out[i*3] != in[i*3] + 5
+          || out[i*3 + 1] != in[i*3 + 1] + 6
+          || out[i*3 + 2] != in[i*3 + 2] + 16
+          || out2[i*5] != in2[i*5] + 2
+          || out2[i*5 + 1] != in2[i*5 + 1] + 2
+          || out2[i*5 + 2] != in2[i*5 + 2] + 1
+          || out2[i*5 + 3] != in2[i*5 + 3] + 3
+          || out2[i*5 + 4] != in2[i*5 + 4] + 13)
+        abort ();
+    }
+
+  return 0;
+}
+
+int main (void)
+{
+  check_vect ();
+
+  main1 ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "vect"  } } */
+