Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 50 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2b-big-array.c b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2b-big-array.c
new file mode 100644
index 000000000..fa0100b9a
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-pattern-2b-big-array.c
@@ -0,0 +1,50 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 128
+signed char data_ch[N];
+
+volatile int y = 0;
+
+__attribute__ ((noinline)) int
+foo ()
+{
+  int i;
+  signed int intsum = 0;
+  signed int check_intsum = 0;
+
+  for (i = 0; i < N; i++)
+    {
+      data_ch[i] = i*2;
+      check_intsum += data_ch[i];
+      /* Avoid vectorization.  */
+      if (y)
+	abort ();
+    }
+
+  /* widenning sum: sum chars into int.  */
+  for (i = 0; i < N; i++)
+    {
+      intsum += data_ch[i];
+    }
+
+  /* check results:  */
+  if (intsum != check_intsum)
+    abort ();
+
+  return 0;
+}
+
+int
+main (void)
+{
+  check_vect ();
+  return foo ();
+}
+
+/* { dg-final { scan-tree-dump-times "vect_recog_widen_sum_pattern: detected" 1 "vect" } } */
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_widen_sum_qi_to_si && vect_unpack } } } } */
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { { ! vect_widen_sum_qi_to_si } && { ! vect_unpack } } } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */