Add fesetexcept: alpha.

This patch adds an Alpha version of fesetexcept.  Untested.

	* sysdeps/alpha/fpu/fesetexcept.c: New file.

2 files changed, 33 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 2aacdbd6b9..d45d73d43f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2016-08-16  Joseph Myers  <joseph@codesourcery.com>
 
+	* sysdeps/alpha/fpu/fesetexcept.c: New file.
+
 	* sysdeps/aarch64/fpu/fesetexcept.c: New file.
 
 	* math/fesetexcept.c: New file.
diff --git a/sysdeps/alpha/fpu/fesetexcept.c b/sysdeps/alpha/fpu/fesetexcept.c
new file mode 100644
index 0000000000..5d6904f030
--- /dev/null
+++ b/sysdeps/alpha/fpu/fesetexcept.c
@@ -0,0 +1,31 @@
+/* Set given exception flags.  Alpha version.
+   Copyright (C) 2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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_libc.h>
+
+int
+fesetexcept (int excepts)
+{
+  unsigned long int tmp;
+
+  tmp = __ieee_get_fp_control ();
+  tmp |= excepts & SWCR_STATUS_MASK;
+  __ieee_set_fp_control (tmp);
+
+  return 0;
+}