[4.9] Switch gcc-4.9 to use google/gcc-4_9 branch.

This source drop uses svn version r212828 of google/gcc-4.9 branch.
We also cherry-picked r213062, r213063 and r213064 to fix windows
build issues.
All gcc-4.9 patches before July 3rd are ported to google/gcc-4.9.
The following prior commits has not been merged to google branch yet.
(They are included in this commit).
e7af147f979e657fe2df00808e5b4319b0e088c6,
baf87df3cb2683649ba7e9872362a7e721117c23, and
c231900e5dcc14d8296bd9f62b45997a49d4d5e7.

Change-Id: I4bea3ea470387ff751c2be4cb0d4a12059b9299b

1 files changed, 51 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/vect/pr61680.c b/gcc-4.9/gcc/testsuite/gcc.dg/vect/pr61680.c
new file mode 100644
index 000000000..605a651aa
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/vect/pr61680.c
@@ -0,0 +1,51 @@
+/* { dg-do run } */
+
+#include "tree-vect.h"
+
+double v[4096][4];
+
+__attribute__((noinline, noclone)) void
+bar (double p[][4])
+{
+  int i;
+  double d = 172.0;
+  for (i = 0; i < 4096; i++)
+    {
+      if (p[i][0] != 6.0 || p[i][1] != 6.0 || p[i][2] != 10.0)
+	__builtin_abort ();
+      if (__builtin_fabs (p[i][3] - d) > 0.25)
+	__builtin_abort ();
+    }
+}
+
+__attribute__((noinline, noclone)) void
+foo (void)
+{
+  int i;
+  double w[4096][4], t;
+  for (i = 0; i < 4096; i++)
+    {
+      w[i][0] = v[i][0] + 2.0;
+      w[i][1] = v[i][1] + 1.0;
+      w[i][2] = v[i][2] + 4.0;
+      w[i][3] = (w[i][0] * w[i][0] + w[i][1] * w[i][1] + w[i][2] * w[i][2]);
+    }
+  bar (w);
+}
+
+int
+main ()
+{
+  int i;
+
+  check_vect ();
+
+  for (i = 0; i < 4096; i++)
+    {
+      v[i][0] = 4.0;
+      v[i][1] = 5.0;
+      v[i][2] = 6.0;
+    }
+  foo ();
+  return 0;
+}