1 files changed, 30 insertions, 0 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_f32xsubf64.c b/sysdeps/ieee754/dbl-64/s_f32xsubf64.c
new file mode 100644
index 0000000000..568f43a880
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/s_f32xsubf64.c
@@ -0,0 +1,30 @@
+/* Subtract _Float64 values, converting the result to _Float32x.
+   Copyright (C) 2018 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/>.  */
+
+#define dsubl __hide_dsubl
+#include <math.h>
+#undef dsubl
+
+#include <math-narrow.h>
+
+_Float32x
+__f32xsubf64 (_Float64 x, _Float64 y)
+{
+  NARROW_SUB_TRIVIAL (x, y, _Float32x);
+}
+libm_alias_float32x_float64 (sub)