Check in a pristine copy of GCC 4.8.1.

The copy of GCC that we use for Android is still not working for
mingw. Rather than finding all the differences that have crept into
our GCC, just check in a copy from
ftp://ftp.gnu.org/gnu/gcc/gcc-4.9.3/gcc-4.8.1.tar.bz2.

GCC 4.8.1 was chosen because it is what we have been using for mingw
thus far, and the emulator doesn't yet work when upgrading to 4.9.

Bug: http://b/26523949
Change-Id: Iedc0f05243d4332cc27ccd46b8a4b203c88dcaa3

1 files changed, 133 insertions, 0 deletions

diff --git a/gcc-4.8.1/libgfortran/runtime/select_inc.c b/gcc-4.8.1/libgfortran/runtime/select_inc.c
new file mode 100644
index 000000000..625587ec8
--- /dev/null
+++ b/gcc-4.8.1/libgfortran/runtime/select_inc.c
@@ -0,0 +1,133 @@
+/* Implement the SELECT statement for character variables.
+   Copyright (C) 2008-2013 Free Software Foundation, Inc.
+
+This file is part of the GNU Fortran runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#define select_string SUFFIX(select_string)
+#define select_struct SUFFIX(select_struct)
+#define compare_string SUFFIX(compare_string)
+
+typedef struct
+{
+  CHARTYPE *low;
+  gfc_charlen_type low_len;
+  CHARTYPE *high;
+  gfc_charlen_type high_len;
+  int address;
+}
+select_struct;
+
+extern int select_string (select_struct *table, int table_len,
+			  const CHARTYPE *selector,
+			  gfc_charlen_type selector_len);
+export_proto(select_string);
+
+
+/* select_string()-- Given a selector string and a table of
+ * select_struct structures, return the address to jump to. */
+
+int
+select_string (select_struct *table, int table_len, const CHARTYPE *selector,
+	       gfc_charlen_type selector_len)
+{
+  select_struct *t;
+  int i, low, high, mid;
+  int default_jump = -1;
+
+  if (table_len == 0)
+    return -1;
+
+  /* Record the default address if present */
+
+  if (table->low == NULL && table->high == NULL)
+    {
+      default_jump = table->address;
+
+      table++;
+      table_len--;
+      if (table_len == 0)
+        return default_jump;
+    }
+
+  /* Try the high and low bounds if present. */
+
+  if (table->low == NULL)
+    {
+      if (compare_string (table->high_len, table->high,
+			  selector_len, selector) >= 0)
+        return table->address;
+
+      table++;
+      table_len--;
+      if (table_len == 0)
+        return default_jump;
+    }
+
+  t = table + table_len - 1;
+
+  if (t->high == NULL)
+    {
+      if (compare_string (t->low_len, t->low, selector_len, selector) <= 0)
+        return t->address;
+
+      table_len--;
+      if (table_len == 0)
+        return default_jump;
+    }
+
+  /* At this point, the only table entries are bounded entries.  Find
+     the right entry with a binary chop. */
+
+  low = -1;
+  high = table_len;
+
+  while (low + 1 < high)
+    {
+      mid = (low + high) / 2;
+
+      t = table + mid;
+      i = compare_string (t->low_len, t->low, selector_len, selector);
+
+      if (i == 0)
+        return t->address;
+
+      if (i < 0)
+        low = mid;
+      else
+        high = mid;
+    }
+
+  /* The string now lies between the low indeces of the now-adjacent
+     high and low entries.  Because it is less than the low entry of
+     'high', it can't be that one.  If low is still -1, then no
+     entries match.  Otherwise, we have to check the high entry of
+     'low'. */
+
+  if (low == -1)
+    return default_jump;
+
+  t = table + low;
+  if (compare_string (selector_len, selector, t->high_len, t->high) <= 0)
+    return t->address;
+
+  return default_jump;
+}