1 files changed, 73 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/vect-strided-u16-i4.c b/gcc/testsuite/gcc.dg/vect/vect-strided-u16-i4.c
new file mode 100644
index 000000000..da5a72855
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-strided-u16-i4.c
@@ -0,0 +1,73 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 128 
+
+typedef struct {
+   unsigned short a;
+   unsigned short b;
+   unsigned short c;
+   unsigned short d;
+} s;
+
+__attribute__ ((noinline)) int
+main1 (s *arr)
+{
+  int i;
+  s *ptr = arr;
+  s res[N];
+  unsigned short x, y, z, w;
+
+  for (i = 0; i < N; i++)
+    {
+      x = ptr->b - ptr->a;
+      y = ptr->d - ptr->c;
+      res[i].c = x + y;
+      z =  ptr->a + ptr->c;
+      w = ptr->b + ptr->d;
+      res[i].a = z + w;
+      res[i].d = x + y;
+      res[i].b = x + y;
+      ptr++;
+    }
+  
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (res[i].c != arr[i].b - arr[i].a + arr[i].d - arr[i].c
+          || res[i].a != arr[i].a + arr[i].c + arr[i].b + arr[i].d
+          || res[i].d != arr[i].b - arr[i].a + arr[i].d - arr[i].c
+          || res[i].b != arr[i].b - arr[i].a + arr[i].d - arr[i].c)
+	abort ();
+    }
+
+  return 0;
+}
+
+int main (void)
+{
+  int i;
+  s arr[N];
+  
+  check_vect ();
+
+  for (i = 0; i < N; i++)
+    { 
+      arr[i].a = i;
+      arr[i].b = i * 2;
+      arr[i].c = 17;
+      arr[i].d = i+34;
+      if (arr[i].a == 178)
+         abort(); 
+    } 
+
+  main1 (arr);
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect"  { target { vect_interleave && vect_extract_even_odd } } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
+