--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/rs6000/e500-double.h	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,24 @@
+/* Target definitions for E500 with double precision FP.
+   Copyright (C) 2004, 2006, 2007 Free Software Foundation, Inc.
+   Contributed by Aldy Hernandez (aldyh@redhat.com).
+
+   This file is part of GCC.
+
+   GCC 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.
+
+   GCC 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.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#undef  SUB3TARGET_OVERRIDE_OPTIONS
+#define SUB3TARGET_OVERRIDE_OPTIONS \
+  if (!rs6000_explicit_options.float_gprs) \
+    rs6000_float_gprs = 2;