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authorJoseph Myers <joseph@codesourcery.com>2012-07-01 13:08:59 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-07-01 13:08:59 +0000
commite84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch)
treedff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/ia64/fpu/feenablxcpt.c
parent75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff)
parente64ac02c24b43659048622714afdc92fedf561fa (diff)
Merge glibc-ports into ports/ directory.glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/ia64/fpu/feenablxcpt.c')
-rw-r--r--ports/sysdeps/ia64/fpu/feenablxcpt.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/ports/sysdeps/ia64/fpu/feenablxcpt.c b/ports/sysdeps/ia64/fpu/feenablxcpt.c
new file mode 100644
index 0000000000..4b06c426b3
--- /dev/null
+++ b/ports/sysdeps/ia64/fpu/feenablxcpt.c
@@ -0,0 +1,36 @@
+/* Enable floating-point exceptions.
+ Copyright (C) 2000 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
+feenableexcept (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;
+}