obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 67 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/vect-strided-a-u16-mult.c b/gcc/testsuite/gcc.dg/vect/vect-strided-a-u16-mult.c
new file mode 100644
index 000000000..afb2f4697
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-strided-a-u16-mult.c
@@ -0,0 +1,67 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 128
+
+typedef struct {
+   unsigned short a;
+   unsigned short b;
+} s;
+
+__attribute__ ((noinline)) int
+main1 ()
+{
+  s arr[N];
+  s *ptr = arr;
+  unsigned int iarr[N];
+  unsigned int *iptr = iarr;
+  s res[N];
+  unsigned int ires[N];
+  int i;
+
+  for (i = 0; i < N; i++)
+    {
+      arr[i].a = i;
+      arr[i].b = i * 2;
+      iarr[i] = i * 3;
+      if (arr[i].a == 178)
+         abort();
+    }
+
+  for (i = 0; i < N; i++)
+    {
+      ires[i] = *iptr;
+      res[i].b = ptr->b - ptr->a;
+      res[i].a = ptr->b + ptr->a;
+      iptr++;
+      ptr++;
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (res[i].b != arr[i].b - arr[i].a
+          || ires[i] != iarr[i]
+          || res[i].a != arr[i].b + arr[i].a)
+        abort ();
+    }
+
+  return 0;
+}
+
+int main (void)
+{
+  int i;
+
+  check_vect ();
+
+  main1 ();
+
+  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" } } */
+