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authorJoseph Myers <joseph@codesourcery.com>2012-07-01 13:06:41 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-07-01 13:06:41 +0000
commite64ac02c24b43659048622714afdc92fedf561fa (patch)
tree37162878b72d302de351788bec4c9360c9d55f1d /ports/sysdeps/ia64/fpu/fclrexcpt.c
parenta20c2b3c87aebc7d4b090c622d36480263b80042 (diff)
downloadglibc-e64ac02c24b43659048622714afdc92fedf561fa.tar.gz
Move all files into ports/ subdirectory in preparation for merge with glibcglibc-2.16-ports-before-merge
Diffstat (limited to 'ports/sysdeps/ia64/fpu/fclrexcpt.c')
-rw-r--r--ports/sysdeps/ia64/fpu/fclrexcpt.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/ports/sysdeps/ia64/fpu/fclrexcpt.c b/ports/sysdeps/ia64/fpu/fclrexcpt.c
new file mode 100644
index 0000000000..84f83277b9
--- /dev/null
+++ b/ports/sysdeps/ia64/fpu/fclrexcpt.c
@@ -0,0 +1,38 @@
+/* Clear given exceptions in current floating-point environment.
+ Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999 and
+ 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
+feclearexcept (int excepts)
+{
+ fenv_t fpsr;
+
+ /* Get the current state. */
+ __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
+
+ /* Clear the relevant bits. */
+ fpsr &= ~(((fenv_t) ((excepts & FE_ALL_EXCEPT) << 13)));
+ /* Put the new state in effect. */
+ __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory");
+
+ /* success */
+ return 0;
+}