1 files changed, 70 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/vect-91.c b/gcc/testsuite/gcc.dg/vect/vect-91.c
new file mode 100644
index 00000000000..96099f4fe0b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-91.c
@@ -0,0 +1,70 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 256
+
+extern int a[N];
+
+/* The alignment of 'pa' is unknown. 
+   Yet we do know that both the read access and write access have 
+   the same alignment. Peeling to align one of the accesses will 
+   align the other.
+
+   Not vectorized yet due to problems in dataref analysis that
+   are fixed in autovect-branch but not yet in mainline.  */
+
+int
+main1 (int * pa)
+{
+  int i;
+
+  for (i = 0; i < N; i++)
+    {
+      pa[i] = pa[i] + 1;
+    }
+
+  return 0;
+}
+
+/* The alignment of 'a' is unknown. 
+   Yet we do know that both the read access and write access have 
+   the same alignment. Peeling to align one of the accesses will 
+   align the other.  */
+
+int
+main2 ()
+{
+  int i;
+
+  for (i = 0; i < N; i++)
+    {
+      a[i] = a[i] + 1;
+    }
+
+  return 0;
+}
+
+int 
+main3 ()
+{
+  int i;
+
+  for (i = 0; i < N; i++)
+    {
+      a[i] = a[i+20];
+    }
+
+  return 0;
+}
+
+/* Currently only the loops in main2 and main3 get vectorized. After the merge 
+   of the datarefs-analysis cleanups from autovect-branch to mainline, the loop
+   in main1 will also be vectorized.  */ 
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { xfail vect_no_int_add } } } */
+/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
+/* { dg-final { scan-tree-dump-times "accesses have the same alignment." 2 "vect" } } */
+/* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 2 "vect" } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */