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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/feupdateenv.c
parent591aeaf7a99bc9aa9179f013114d92496952dced (diff)
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ia64: relocate out of ports/ subdir
Diffstat (limited to 'sysdeps/ia64/fpu/feupdateenv.c')
-rw-r--r--sysdeps/ia64/fpu/feupdateenv.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/sysdeps/ia64/fpu/feupdateenv.c b/sysdeps/ia64/fpu/feupdateenv.c
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index 0000000000..23185616fc
--- /dev/null
+++ b/sysdeps/ia64/fpu/feupdateenv.c
@@ -0,0 +1,40 @@
+/* Install given floating-point environment and raise exceptions.
+   Copyright (C) 1997-2014 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+feupdateenv (const fenv_t *envp)
+{
+  fenv_t fpsr;
+
+
+  /* Get the current exception state.  */
+  __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
+
+  /* Install new environment.  */
+  fesetenv (envp);
+
+  /* Raise the saved exceptions.  */
+  feraiseexcept ((int) (fpsr >> 13) & FE_ALL_EXCEPT);
+
+  /* Success.  */
+  return 0;
+}
+libm_hidden_def (feupdateenv)