--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/vect/slp-perm-2.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,61 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define M00 100
+#define M10 216
+#define M01 1322
+#define M11 13
+#define M02 74
+#define M12 191
+
+#define N 16
+
+void __attribute__((noinline))
+foo (unsigned int *__restrict__ pInput, unsigned int *__restrict__ pOutput)
+{
+  unsigned int i, a, b;
+
+  for (i = 0; i < N / 2; i++)
+    {
+       a = *pInput++;
+       b = *pInput++;
+
+       *pOutput++ = M00 * a + M01 * b;
+       *pOutput++ = M10 * a + M11 * b;
+    }
+}
+
+int main (int argc, const char* argv[])
+{
+  unsigned int input[N], output[N], i;
+  unsigned int check_results[N] = {1322, 13, 4166, 471, 7010, 929, 9854, 1387, 12698, 1845, 15542, 2303, 18386, 2761, 21230, 3219};
+
+  check_vect ();
+
+  for (i = 0; i < N; i++)
+    {
+      input[i] = i%256;
+      output[i] = 0;
+      __asm__ volatile ("");
+    }
+
+  foo (input, output);
+
+  for (i = 0; i < N; i++)
+    {
+      if (output[i] != check_results[i])
+	abort ();
+      __asm__ volatile ("");
+    }
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  { target vect_perm } } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target { vect_perm && {! vect_load_lanes } } } } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect" { target vect_load_lanes } } } */
+/* { dg-final { scan-tree-dump "note: Built SLP cancelled: can use load/store-lanes" "vect" { target { vect_perm && vect_load_lanes } } } } */
+/* { dg-final { scan-tree-dump "LOAD_LANES" "vect" { target vect_load_lanes } } } */
+/* { dg-final { scan-tree-dump "STORE_LANES" "vect" { target vect_load_lanes } } } */