[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

8 files changed, 232 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr61684.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr61684.c
new file mode 100644
index 000000000..f5b53b73a
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr61684.c
@@ -0,0 +1,15 @@
+/* PR tree-optimization/61684 */
+
+int a, c;
+static int *b = 0;
+short d;
+static short **e = 0;
+
+void
+foo ()
+{
+  for (; c < 1; c++)
+    ;
+  *e = &d;
+  a = d && (c && 1) & *b;
+}
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20140425-1.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20140425-1.c
new file mode 100644
index 000000000..c447ef95b
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20140425-1.c
@@ -0,0 +1,23 @@
+/* PR target/60941 */
+/* Reported by Martin Husemann <martin@netbsd.org> */
+
+extern void abort (void);
+
+static void __attribute__((noinline))
+set (unsigned long *l)
+{
+  *l = 31;
+}
+
+int main (void)
+{
+  unsigned long l;
+  int i;
+
+  set (&l);
+  i = (int) l;
+  l = (unsigned long)(2U << i);
+  if (l != 0)
+    abort ();
+  return 0;
+}
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr60960.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr60960.c
new file mode 100644
index 000000000..b4f08d4c5
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr60960.c
@@ -0,0 +1,38 @@
+/* PR tree-optimization/60960 */
+
+typedef unsigned char v4qi __attribute__ ((vector_size (4)));
+
+__attribute__((noinline, noclone)) v4qi
+f1 (v4qi v)
+{
+  return v / 2;
+}
+
+__attribute__((noinline, noclone)) v4qi
+f2 (v4qi v)
+{
+  return v / (v4qi) { 2, 2, 2, 2 };
+}
+
+__attribute__((noinline, noclone)) v4qi
+f3 (v4qi x, v4qi y)
+{
+  return x / y;
+}
+
+int
+main ()
+{
+  v4qi x = { 5, 5, 5, 5 };
+  v4qi y = { 2, 2, 2, 2 };
+  v4qi z = f1 (x);
+  if (__builtin_memcmp (&y, &z, sizeof (y)) != 0)
+    __builtin_abort ();
+  z = f2 (x);
+  if (__builtin_memcmp (&y, &z, sizeof (y)) != 0)
+    __builtin_abort ();
+  z = f3 (x, y);
+  if (__builtin_memcmp (&y, &z, sizeof (y)) != 0)
+    __builtin_abort ();
+  return 0;
+}
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61306-1.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61306-1.c
new file mode 100644
index 000000000..ebc90a32f
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61306-1.c
@@ -0,0 +1,39 @@
+#ifdef __INT32_TYPE__
+typedef __INT32_TYPE__ int32_t;
+#else
+typedef int int32_t;
+#endif
+
+#ifdef __UINT32_TYPE__
+typedef __UINT32_TYPE__ uint32_t;
+#else
+typedef unsigned uint32_t;
+#endif
+
+#define __fake_const_swab32(x) ((uint32_t)(		      \
+	(((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) |    \
+	(((uint32_t)(x) & (uint32_t)0x0000ff00UL) <<  8) |    \
+	(((uint32_t)(x) & (uint32_t)0x00ff0000UL) >>  8) |    \
+	(( (int32_t)(x) &  (int32_t)0xff000000UL) >> 24)))
+
+/* Previous version of bswap optimization failed to consider sign extension
+   and as a result would replace an expression *not* doing a bswap by a
+   bswap.  */
+
+__attribute__ ((noinline, noclone)) uint32_t
+fake_bswap32 (uint32_t in)
+{
+  return __fake_const_swab32 (in);
+}
+
+int
+main(void)
+{
+  if (sizeof (int32_t) * __CHAR_BIT__ != 32)
+    return 0;
+  if (sizeof (uint32_t) * __CHAR_BIT__ != 32)
+    return 0;
+  if (fake_bswap32 (0x87654321) != 0xffffff87)
+    __builtin_abort ();
+  return 0;
+}
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61306-2.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61306-2.c
new file mode 100644
index 000000000..886ecfd29
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61306-2.c
@@ -0,0 +1,40 @@
+#ifdef __INT16_TYPE__
+typedef __INT16_TYPE__ int16_t;
+#else
+typedef short int16_t;
+#endif
+
+#ifdef __UINT32_TYPE__
+typedef __UINT32_TYPE__ uint32_t;
+#else
+typedef unsigned uint32_t;
+#endif
+
+#define __fake_const_swab32(x) ((uint32_t)(			      \
+	(((uint32_t)         (x) & (uint32_t)0x000000ffUL) << 24) |   \
+	(((uint32_t)(int16_t)(x) & (uint32_t)0x00ffff00UL) <<  8) |   \
+	(((uint32_t)         (x) & (uint32_t)0x00ff0000UL) >>  8) |   \
+	(((uint32_t)         (x) & (uint32_t)0xff000000UL) >> 24)))
+
+
+/* Previous version of bswap optimization failed to consider sign extension
+   and as a result would replace an expression *not* doing a bswap by a
+   bswap.  */
+
+__attribute__ ((noinline, noclone)) uint32_t
+fake_bswap32 (uint32_t in)
+{
+  return __fake_const_swab32 (in);
+}
+
+int
+main(void)
+{
+  if (sizeof (uint32_t) * __CHAR_BIT__ != 32)
+    return 0;
+  if (sizeof (int16_t) * __CHAR_BIT__ != 16)
+    return 0;
+  if (fake_bswap32 (0x81828384) != 0xff838281)
+    __builtin_abort ();
+  return 0;
+}
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61306-3.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61306-3.c
new file mode 100644
index 000000000..6086e2786
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61306-3.c
@@ -0,0 +1,13 @@
+short a = -1;
+int b;
+char c;
+
+int
+main ()
+{
+  c = a;
+  b = a | c;
+  if (b != -1)
+    __builtin_abort ();
+  return 0;
+}
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61673.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61673.c
new file mode 100644
index 000000000..b3e243da5
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61673.c
@@ -0,0 +1,50 @@
+/* PR rtl-optimization/61673 */
+
+char e;
+
+__attribute__((noinline, noclone)) void
+bar (char x)
+{
+  if (x != 0x54 && x != (char) 0x87)
+    __builtin_abort ();
+}
+
+__attribute__((noinline, noclone)) void
+foo (const char *x)
+{
+  char d = x[0];
+  int c = d;
+  if ((c >= 0 && c <= 0x7f) == 0)
+    e = d;
+  bar (d);
+}
+
+__attribute__((noinline, noclone)) void
+baz (const char *x)
+{
+  char d = x[0];
+  int c = d;
+  if ((c >= 0 && c <= 0x7f) == 0)
+    e = d;
+}
+
+int
+main ()
+{
+  const char c[] = { 0x54, 0x87 };
+  e = 0x21;
+  foo (c);
+  if (e != 0x21)
+    __builtin_abort ();
+  foo (c + 1);
+  if (e != (char) 0x87)
+    __builtin_abort ();
+  e = 0x21;
+  baz (c);
+  if (e != 0x21)
+    __builtin_abort ();
+  baz (c + 1);
+  if (e != (char) 0x87)
+    __builtin_abort ();
+  return 0;
+}
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61725.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61725.c
new file mode 100644
index 000000000..0aa6dafa2
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/execute/pr61725.c
@@ -0,0 +1,14 @@
+/* PR tree-optimization/61725 */
+
+int
+main ()
+{
+  int x;
+  for (x = -128; x <= 128; x++)
+    {
+      int a = __builtin_ffs (x);
+      if (x == 0 && a != 0)
+        __builtin_abort ();
+    }
+  return 0;
+}