1 files changed, 59 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/slp-perm-9.c b/gcc/testsuite/gcc.dg/vect/slp-perm-9.c
new file mode 100644
index 000000000..d1653ba1b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/slp-perm-9.c
@@ -0,0 +1,59 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 200
+
+void foo (unsigned short *__restrict__ pInput, unsigned short *__restrict__ pOutput)
+{
+  unsigned short i, a, b, c;
+
+  for (i = 0; i < N / 3; i++)
+    {
+       a = *pInput++;
+       b = *pInput++;
+       c = *pInput++;
+
+       *pOutput++ = a + b + c + 3;
+       *pOutput++ = a + b + c + 12;
+       *pOutput++ = a + b + c + 1;
+    }
+}
+
+int main (int argc, const char* argv[])
+{
+  unsigned short input[N], output[N], i;
+  unsigned short check_results[N];
+
+  check_vect ();
+
+  for (i = 0; i < N; i++)
+    {
+      input[i] = i;
+      output[i] = 0;
+      if (input[i] > 256)
+        abort ();
+    }
+
+  for (i = 0; i < N / 3; i++)
+    {
+      check_results[3*i] = 9 * i + 6;
+      check_results[3*i+1] = 9 * i + 15;
+      check_results[3*i+2] = 9 * i + 4;
+    }
+
+  foo (input, output);
+
+  for (i = 0; i < N - (N % 3); i++)
+     if (output[i] != check_results[i])
+       abort ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  } } */
+/* { dg-final { scan-tree-dump-times "permutation requires at least three vectors" 1 "vect" { target vect_perm_short } } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect"  } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+