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-rw-r--r--sysdeps/ieee754/dbl-64/s_setpayload.c6
-rw-r--r--sysdeps/ieee754/dbl-64/s_setpayload_main.c69
-rw-r--r--sysdeps/ieee754/dbl-64/wordsize-64/s_setpayload_main.c53
3 files changed, 128 insertions, 0 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_setpayload.c b/sysdeps/ieee754/dbl-64/s_setpayload.c
new file mode 100644
index 0000000000..5ab70dee73
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/s_setpayload.c
@@ -0,0 +1,6 @@
+#define SIG 0
+#define FUNC setpayload
+#include <s_setpayload_main.c>
+#ifdef NO_LONG_DOUBLE
+weak_alias (setpayload, setpayloadl)
+#endif
diff --git a/sysdeps/ieee754/dbl-64/s_setpayload_main.c b/sysdeps/ieee754/dbl-64/s_setpayload_main.c
new file mode 100644
index 0000000000..d7a3609c39
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/s_setpayload_main.c
@@ -0,0 +1,69 @@
+/* Set NaN payload.  dbl-64 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 <math.h>
+#include <math_private.h>
+#include <nan-high-order-bit.h>
+#include <stdint.h>
+
+#define SET_HIGH_BIT (HIGH_ORDER_BIT_IS_SET_FOR_SNAN ? SIG : !SIG)
+#define BIAS 0x3ff
+#define PAYLOAD_DIG 51
+#define EXPLICIT_MANT_DIG 52
+
+int
+FUNC (double *x, double payload)
+{
+  uint32_t hx, lx;
+  EXTRACT_WORDS (hx, lx, payload);
+  int exponent = hx >> (EXPLICIT_MANT_DIG - 32);
+  /* Test if argument is (a) negative or too large; (b) too small,
+     except for 0 when allowed; (c) not an integer.  */
+  if (exponent >= BIAS + PAYLOAD_DIG
+      || (exponent < BIAS && !(SET_HIGH_BIT && hx == 0 && lx == 0)))
+    {
+      INSERT_WORDS (*x, 0, 0);
+      return 1;
+    }
+  int shift = BIAS + EXPLICIT_MANT_DIG - exponent;
+  if (shift < 32
+      ? (lx & ((1U << shift) - 1)) != 0
+      : (lx != 0 || (hx & ((1U << (shift - 32)) - 1)) != 0))
+    {
+      INSERT_WORDS (*x, 0, 0);
+      return 1;
+    }
+  if (exponent != 0)
+    {
+      hx &= (1U << (EXPLICIT_MANT_DIG - 32)) - 1;
+      hx |= 1U << (EXPLICIT_MANT_DIG - 32);
+      if (shift >= 32)
+	{
+	  lx = hx >> (shift - 32);
+	  hx = 0;
+	}
+      else if (shift != 0)
+	{
+	  lx = (lx >> shift) | (hx << (32 - shift));
+	  hx >>= shift;
+	}
+    }
+  hx |= 0x7ff00000 | (SET_HIGH_BIT ? 0x80000 : 0);
+  INSERT_WORDS (*x, hx, lx);
+  return 0;
+}
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_setpayload_main.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_setpayload_main.c
new file mode 100644
index 0000000000..691579295c
--- /dev/null
+++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_setpayload_main.c
@@ -0,0 +1,53 @@
+/* Set NaN payload.  dbl-64/wordsize-64 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 <math.h>
+#include <math_private.h>
+#include <nan-high-order-bit.h>
+#include <stdint.h>
+
+#define SET_HIGH_BIT (HIGH_ORDER_BIT_IS_SET_FOR_SNAN ? SIG : !SIG)
+#define BIAS 0x3ff
+#define PAYLOAD_DIG 51
+#define EXPLICIT_MANT_DIG 52
+
+int
+FUNC (double *x, double payload)
+{
+  uint64_t ix;
+  EXTRACT_WORDS64 (ix, payload);
+  int exponent = ix >> EXPLICIT_MANT_DIG;
+  /* Test if argument is (a) negative or too large; (b) too small,
+     except for 0 when allowed; (c) not an integer.  */
+  if (exponent >= BIAS + PAYLOAD_DIG
+      || (exponent < BIAS && !(SET_HIGH_BIT && ix == 0))
+      || (ix & ((1ULL << (BIAS + EXPLICIT_MANT_DIG - exponent)) - 1)) != 0)
+    {
+      INSERT_WORDS64 (*x, 0);
+      return 1;
+    }
+  if (ix != 0)
+    {
+      ix &= (1ULL << EXPLICIT_MANT_DIG) - 1;
+      ix |= 1ULL << EXPLICIT_MANT_DIG;
+      ix >>= BIAS + EXPLICIT_MANT_DIG - exponent;
+    }
+  ix |= 0x7ff0000000000000ULL | (SET_HIGH_BIT ? 0x8000000000000ULL : 0);
+  INSERT_WORDS64 (*x, ix);
+  return 0;
+}