[GCC 4.8] Initial check-in of GCC 4.8.0

Change-Id: I0719d8a6d0f69b367a6ab6f10eb75622dbf12771

1 files changed, 85 insertions, 0 deletions

diff --git a/gcc-4.8/libgo/runtime/go-int-array-to-string.c b/gcc-4.8/libgo/runtime/go-int-array-to-string.c
new file mode 100644
index 000000000..6cae2fd8c
--- /dev/null
+++ b/gcc-4.8/libgo/runtime/go-int-array-to-string.c
@@ -0,0 +1,85 @@
+/* go-int-array-to-string.c -- convert an array of ints to a string in Go.
+
+   Copyright 2009 The Go Authors. All rights reserved.
+   Use of this source code is governed by a BSD-style
+   license that can be found in the LICENSE file.  */
+
+#include "go-assert.h"
+#include "runtime.h"
+#include "arch.h"
+#include "malloc.h"
+
+String
+__go_int_array_to_string (const void* p, intgo len)
+{
+  const int32 *ints;
+  intgo slen;
+  intgo i;
+  unsigned char *retdata;
+  String ret;
+  unsigned char *s;
+
+  ints = (const int32 *) p;
+
+  slen = 0;
+  for (i = 0; i < len; ++i)
+    {
+      int32 v;
+
+      v = ints[i];
+
+      if (v < 0 || v > 0x10ffff)
+	v = 0xfffd;
+
+      if (v <= 0x7f)
+	slen += 1;
+      else if (v <= 0x7ff)
+	slen += 2;
+      else if (v <= 0xffff)
+	slen += 3;
+      else
+	slen += 4;
+    }
+
+  retdata = runtime_mallocgc ((uintptr) slen, FlagNoPointers, 1, 0);
+  ret.str = retdata;
+  ret.len = slen;
+
+  s = retdata;
+  for (i = 0; i < len; ++i)
+    {
+      int32 v;
+
+      v = ints[i];
+
+      /* If V is out of range for UTF-8, substitute the replacement
+	 character.  */
+      if (v < 0 || v > 0x10ffff)
+	v = 0xfffd;
+
+      if (v <= 0x7f)
+	*s++ = v;
+      else if (v <= 0x7ff)
+	{
+	  *s++ = 0xc0 | ((v >> 6) & 0x1f);
+	  *s++ = 0x80 | (v & 0x3f);
+	}
+      else if (v <= 0xffff)
+	{
+	  *s++ = 0xe0 | ((v >> 12) & 0xf);
+	  *s++ = 0x80 | ((v >> 6) & 0x3f);
+	  *s++ = 0x80 | (v & 0x3f);
+	}
+      else
+	{
+	  *s++ = 0xf0 | ((v >> 18) & 0x7);
+	  *s++ = 0x80 | ((v >> 12) & 0x3f);
+	  *s++ = 0x80 | ((v >> 6) & 0x3f);
+	  *s++ = 0x80 | (v & 0x3f);
+	}
+    }
+
+  __go_assert (s - retdata == slen);
+
+  return ret;
+}