1 files changed, 36 insertions, 0 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_getpayload.c b/sysdeps/ieee754/dbl-64/s_getpayload.c
new file mode 100644
index 0000000000..7b995e94ee
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/s_getpayload.c
@@ -0,0 +1,36 @@
+/* Get NaN payload.  dbl-64 version.
+   Copyright (C) 2016-2018 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/>.  */
+
+#include <fix-int-fp-convert-zero.h>
+#include <math.h>
+#include <math_private.h>
+#include <libm-alias-double.h>
+#include <stdint.h>
+
+double
+__getpayload (const double *x)
+{
+  uint32_t hx, lx;
+  EXTRACT_WORDS (hx, lx, *x);
+  hx &= 0x7ffff;
+  uint64_t ix = ((uint64_t) hx << 32) | lx;
+  if (FIX_INT_FP_CONVERT_ZERO && ix == 0)
+    return 0.0f;
+  return (double) ix;
+}
+libm_alias_double (__getpayload, getpayload)