ia64: move from main tree

This is a simple copy of the last version of ia64 in the main tree.
It does not work as-is, but serves as a basis for follow up changes
to restore it to working order.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/sysdeps/ia64/fpu/feholdexcpt.c b/sysdeps/ia64/fpu/feholdexcpt.c
new file mode 100644
index 0000000000..e50fbfada5
--- /dev/null
+++ b/sysdeps/ia64/fpu/feholdexcpt.c
@@ -0,0 +1,42 @@
+/* Store current floating-point environment and clear exceptions.
+   Copyright (C) 1997, 1999, 2000, 2005, 2007 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <fenv.h>
+
+int
+feholdexcept (fenv_t *envp)
+{
+  fenv_t fpsr;
+  /* Save the current state.  */
+  __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
+  *envp = fpsr;
+
+  /* Set the trap disable bits.  */
+  fpsr |= FE_ALL_EXCEPT;
+
+  /* And clear the exception bits.  */
+  fpsr &= ~(fenv_t) (FE_ALL_EXCEPT << 13);
+
+  __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr));
+
+  /* Success.  */
+  return 0;
+}
+libm_hidden_def (feholdexcept)