[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, 37 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr61681.c b/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr61681.c
new file mode 100644
index 000000000..226de0c1a
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr61681.c
@@ -0,0 +1,37 @@
+/* { dg-do run } */
+
+extern void abort (void);
+
+int a = 1, *e = &a, **f = &e, *l, *p, j;
+static int b;
+long d;
+short g;
+
+void
+fn1 (int *p)
+{
+  int m;
+  if (!(*p & j))
+    {
+      int *n = &m;
+      for (d = 6; d; d--)
+	{
+	  for (g = 0; g < 1; g++)
+	    {
+	      n = l = *f;
+	      b = *p;
+	    }
+	  *n = 0;
+	}
+    }
+}
+
+int
+main ()
+{
+  p = *f;
+  fn1 (p);
+  if (b != 0)
+    abort ();
+  return 0;
+}