[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, 91 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.target/powerpc/pack01.c b/gcc-4.9/gcc/testsuite/gcc.target/powerpc/pack01.c
new file mode 100644
index 000000000..efac4087c
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/powerpc/pack01.c
@@ -0,0 +1,91 @@
+/* { dg-do run { target { powerpc*-*-linux* && lp64 } } } */
+/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
+/* { dg-skip-if "" { powerpc*-*-*spe* } { "*" } { "" } } */
+/* { dg-require-effective-target p8vector_hw } */
+/* { dg-options "-mcpu=power8 -O2" } */
+
+#include <stddef.h>
+#include <stdlib.h>
+#include <altivec.h>
+
+#ifdef DEBUG
+#include <stdio.h>
+#endif
+
+typedef __int128_t __attribute__((__vector_size__(16)))	vector_128_t;
+typedef __int128_t					scalar_128_t;
+typedef	unsigned long long				scalar_64_t;
+
+volatile scalar_64_t one = 1;
+volatile scalar_64_t two = 2;
+
+int
+main (void)
+{
+  scalar_128_t a = (((scalar_128_t)one) << 64) | ((scalar_128_t)two);
+  vector_128_t v1 = (vector_128_t) { a };
+  vector_128_t v2 = __builtin_pack_vector_int128 (one, two);
+  scalar_64_t x0 = __builtin_unpack_vector_int128 (v1, 0);
+  scalar_64_t x1 = __builtin_unpack_vector_int128 (v1, 1);
+  vector_128_t v3 = __builtin_pack_vector_int128 (x0, x1);
+
+  size_t i;
+  union {
+    scalar_128_t i128;
+    vector_128_t v128;
+    scalar_64_t u64;
+    unsigned char uc[sizeof (scalar_128_t)];
+    char c[sizeof (scalar_128_t)];
+  } u, u2;
+
+#ifdef DEBUG
+  {
+    printf ("a  = 0x");
+    u.i128 = a;
+    for (i = 0; i < sizeof (scalar_128_t); i++)
+      printf ("%.2x", u.uc[i]);
+
+    printf ("\nv1 = 0x");
+    u.v128 = v1;
+    for (i = 0; i < sizeof (scalar_128_t); i++)
+      printf ("%.2x", u.uc[i]);
+
+    printf ("\nv2 = 0x");
+    u.v128 = v2;
+    for (i = 0; i < sizeof (scalar_128_t); i++)
+      printf ("%.2x", u.uc[i]);
+
+    printf ("\nv3 = 0x");
+    u.v128 = v3;
+    for (i = 0; i < sizeof (scalar_128_t); i++)
+      printf ("%.2x", u.uc[i]);
+
+    printf ("\nx0 = 0x");
+    u.u64 = x0;
+    for (i = 0; i < sizeof (scalar_64_t); i++)
+      printf ("%.2x", u.uc[i]);
+
+    printf ("\nx1 = 0x");
+    u.u64 = x1;
+    for (i = 0; i < sizeof (scalar_64_t); i++)
+      printf ("%.2x", u.uc[i]);
+
+    printf ("\n");
+  }
+#endif
+
+  u2.i128 = a;
+  u.v128 = v1;
+  if (memcmp (u.c, u2.c, sizeof (scalar_128_t)) != 0)
+    abort ();
+
+  u.v128 = v2;
+  if (memcmp (u.c, u2.c, sizeof (scalar_128_t)) != 0)
+    abort ();
+
+  u.v128 = v3;
+  if (memcmp (u.c, u2.c, sizeof (scalar_128_t)) != 0)
+    abort ();
+
+  return 0;
+}