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authorMike Frysinger <vapier@gentoo.org>2014-02-15 22:07:25 -0500
committerMike Frysinger <vapier@gentoo.org>2014-02-16 01:12:38 -0500
commitc70a4b1db0cf5e813ae24b0fa96a352399eb6edf (patch)
tree5a36b0f0955682ae5232907d04fdf68589990783 /sysdeps/ia64/fpu/fedisblxcpt.c
parent591aeaf7a99bc9aa9179f013114d92496952dced (diff)
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ia64: relocate out of ports/ subdir
Diffstat (limited to 'sysdeps/ia64/fpu/fedisblxcpt.c')
-rw-r--r--sysdeps/ia64/fpu/fedisblxcpt.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/sysdeps/ia64/fpu/fedisblxcpt.c b/sysdeps/ia64/fpu/fedisblxcpt.c
new file mode 100644
index 0000000000..b28d32fd2b
--- /dev/null
+++ b/sysdeps/ia64/fpu/fedisblxcpt.c
@@ -0,0 +1,36 @@
+/* Disable floating-point exceptions.
+   Copyright (C) 2000-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jes Sorensen <Jes.Sorensen@cern.ch>, 2000.
+
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fedisableexcept (int excepts)
+{
+  fenv_t old_fpsr;
+  fenv_t new_fpsr;
+
+  /* Get the current fpsr.  */
+  __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (old_fpsr));
+
+  new_fpsr = old_fpsr | ((fenv_t) excepts & FE_ALL_EXCEPT);
+
+  __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (new_fpsr) : "memory");
+
+  return (old_fpsr ^ FE_ALL_EXCEPT) & FE_ALL_EXCEPT;
+}