Add gcc-4.6. Synced to @180989

Change-Id: Ie3676586e1d8e3c8cd9f07d022f450d05fa08439
svn://gcc.gnu.org/svn/gcc/branches/google/gcc-4_6-mobile

1 files changed, 34 insertions, 0 deletions

diff --git a/gcc-4.6/gcc/config/ia64/crtfastmath.c b/gcc-4.6/gcc/config/ia64/crtfastmath.c
new file mode 100644
index 000000000..0decd2a3f
--- /dev/null
+++ b/gcc-4.6/gcc/config/ia64/crtfastmath.c
@@ -0,0 +1,34 @@
+/* Copyright (C) 2001, 2005, 2009 Free Software Foundation, Inc.
+   Contributed by David Mosberger <davidm@hpl.hp.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.
+
+   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/>.  */
+
+/* We could call fesetenv() here but that would create a confusing
+   dependency on libm (since that is where fesetenv() gets defined.
+   To avoid this, just do everything locally.  */
+#define FE_NONIEEE_ENV 0x0009a04d0270037f
+
+static void __attribute__((constructor))
+__ia64_set_fast_math (void)
+{
+  __asm__ __volatile__ ("mov.m ar.fpsr=%0" : : "r"(FE_NONIEEE_ENV));
+}