1 files changed, 31 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/testsuite/gcc.dg/vect/pr56918.c b/gcc-4.8/gcc/testsuite/gcc.dg/vect/pr56918.c
new file mode 100644
index 000000000..581faa0e2
--- /dev/null
+++ b/gcc-4.8/gcc/testsuite/gcc.dg/vect/pr56918.c
@@ -0,0 +1,31 @@
+/* PR tree-optimization/56918 */
+/* { dg-additional-options "-O3" } */
+
+#include "tree-vect.h"
+
+extern void abort (void);
+double data[8];
+
+__attribute__((noinline, noclone)) void
+foo ()
+{
+  int i;
+  for (i = 0; i < 8; ++i)
+    data[i] = ((i + 2) % 3) + 1;
+}
+
+int
+main ()
+{
+  int i;
+  check_vect ();
+  foo ();
+  if (data[0] != 3 || data[7] != 1)
+    abort ();
+  for (i = 1; i < 4; ++i)
+    if (data[i] != i || data[i + 3] != i)
+      abort ();
+  return 0;
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */