1 files changed, 71 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/slp-16.c b/gcc/testsuite/gcc.dg/vect/slp-16.c
new file mode 100644
index 000000000..e5469d46c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/slp-16.c
@@ -0,0 +1,71 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 8 
+
+unsigned int out[N*8];
+unsigned int in[N*8] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63};
+unsigned int in2[N*16] = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63};
+unsigned int out2[N*16];
+
+int
+main1 ()
+{
+  int i;
+  unsigned int a0, a1, a2, a3, a4, a5, a6, a7, b1, b0, b2, b3, b4, b5, b6, b7;
+
+  /* SLP group of size that is not a multiple of vector size. 
+     Unrolling by 2.  */
+  for (i = 0; i < N; i++)
+    {
+      a0 = in[i*2] + 5;
+      a1 = in[i*2 + 1] + 6; 
+    
+      b0 = a0 * 3;
+      b1 = a1 * 2; 
+    
+      out[i*2] = b0 - 2;
+      out[i*2 + 1] = b1 - 3; 
+    
+      out2[i*6] = in2[i*6] * 2;
+      out2[i*6 + 1] = in2[i*6 + 1] * 3;
+      out2[i*6 + 2] = in2[i*6 + 2] * 4;
+      out2[i*6 + 3] = in2[i*6 + 3] * 2;
+      out2[i*6 + 4] = in2[i*6 + 4] * 4;
+      out2[i*6 + 5] = in2[i*6 + 5] * 3;
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (out[i*2] !=  (in[i*2] + 5) * 3 - 2
+         || out[i*2 + 1] != (in[i*2 + 1] + 6) * 2 - 3
+         || out2[i*6] != in2[i*6] * 2
+         || out2[i*6 + 1] != in2[i*6 + 1] * 3
+         || out2[i*6 + 2] != in2[i*6 + 2] * 4
+         || out2[i*6 + 3] != in2[i*6 + 3] * 2
+         || out2[i*6 + 4] != in2[i*6 + 4] * 4
+         || out2[i*6 + 5] != in2[i*6 + 5] * 3)
+        abort ();
+    }
+
+
+
+  return 0;
+}
+
+int main (void)
+{
+  check_vect ();
+
+  main1 ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  { target vect_int_mult } } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "vect" { target vect_int_mult } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+