Imported from /home/lorry/working-area/delta_gcc-tarball/gcc-4.7.3.tar.bz2.gcc-4.7.3

1 files changed, 43 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/O3-slp-reduc-10.c b/gcc/testsuite/gcc.dg/vect/O3-slp-reduc-10.c
new file mode 100644
index 0000000000..a35d90b3a0
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/O3-slp-reduc-10.c
@@ -0,0 +1,43 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 128
+#define TYPE int
+#define RESULT 755918
+
+__attribute__ ((noinline)) TYPE fun2 (TYPE *x, TYPE *y, unsigned int n)
+{
+  int i, j;
+  TYPE dot = 14;
+
+  for (i = 0; i < n / 2; i++)
+    for (j = 0; j < 2; j++)
+      dot += *(x++) * *(y++);
+
+  return dot;
+}
+
+int main (void)
+{
+  TYPE a[N], b[N], dot;
+  int i;
+
+  check_vect ();
+
+  for (i = 0; i < N; i++)
+    {
+      a[i] = i;
+      b[i] = i+8;
+    }
+
+  dot = fun2 (a, b, N);
+  if (dot != RESULT)
+    abort();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { target { vect_int_mult && {! vect_no_align } } } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */