--- a/gcc/testsuite/gcc.dg/vect/slp-perm-1.c	Fri Oct 27 22:46:09 2017 +0900
+++ b/gcc/testsuite/gcc.dg/vect/slp-perm-1.c	Thu Oct 25 07:37:49 2018 +0900
@@ -13,7 +13,11 @@
 #define M12 191
 #define M22 500
 
+#if VECTOR_BITS > 128
+#define N (VECTOR_BITS * 3 / 32 + 4)
+#else
 #define N 16
+#endif
 
 void foo (unsigned int *__restrict__ pInput, unsigned int *__restrict__ pOutput)
 {
@@ -34,7 +38,6 @@
 int main (int argc, const char* argv[])
 {
   unsigned int input[N], output[N], i;
-  unsigned int check_results[N] = {1470, 395, 28271, 5958, 1655, 111653, 10446, 2915, 195035, 14934, 4175, 278417, 19422, 5435, 361799, 0};
 
   check_vect ();
 
@@ -45,6 +48,25 @@
       __asm__ volatile ("");
     }
 
+#if N == 16
+  unsigned int check_results[N] = {1470, 395, 28271, 5958, 1655, 111653, 10446, 2915, 195035, 14934, 4175, 278417, 19422, 5435, 361799, 0};
+#else
+  volatile unsigned int check_results[N] = {};
+
+  for (unsigned int i = 0; i < N / 3; i++)
+    {
+      unsigned int a = input[i * 3];
+      unsigned int b = input[i * 3 + 1];
+      unsigned int c = input[i * 3 + 2];
+
+      check_results[i * 3] = M00 * a + M01 * b + M02 * c;
+      check_results[i * 3 + 1] = M10 * a + M11 * b + M12 * c;
+      check_results[i * 3 + 2] = M20 * a + M21 * b + M22 * c;
+
+      asm volatile ("" ::: "memory");
+    }
+#endif
+
   foo (input, output);
 
   for (i = 0; i < N; i++)
@@ -58,9 +80,9 @@
 }
 
 /* { 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" 1 "vect" { target { vect_perm3_int && {! 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 "Built SLP cancelled: can use load/store-lanes" "vect" { target { vect_perm3_int && 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 } } } */