1 files changed, 36 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/alpha/crtfastmath.c b/gcc-4.9/libgcc/config/alpha/crtfastmath.c
new file mode 100644
index 000000000..8a7117692
--- /dev/null
+++ b/gcc-4.9/libgcc/config/alpha/crtfastmath.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2001-2014 Free Software Foundation, Inc.
+ * Contributed by Richard Henderson (rth@redhat.com)
+ *
+ * This file is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 3, or (at your option) any
+ * later version.
+ * 
+ * This file 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
+ * General Public License for more details.
+ * 
+ * Under Section 7 of GPL version 3, you are granted additional
+ * permissions described in the GCC Runtime Library Exception, version
+ * 3.1, as published by the Free Software Foundation.
+ *
+ * You should have received a copy of the GNU General Public License and
+ * a copy of the GCC Runtime Library Exception along with this program;
+ * see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+/* Assume OSF/1 compatible interfaces.  */
+
+extern void __ieee_set_fp_control (unsigned long int);
+
+#define IEEE_MAP_DMZ  (1UL<<12)       /* Map denorm inputs to zero */
+#define IEEE_MAP_UMZ  (1UL<<13)       /* Map underflowed outputs to zero */
+
+static void __attribute__((constructor))
+set_fast_math (void)
+{
+  __ieee_set_fp_control (IEEE_MAP_DMZ | IEEE_MAP_UMZ);
+}