1 files changed, 72 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/fpu/s_llroundf.c b/sysdeps/powerpc/powerpc32/fpu/s_llroundf.c
new file mode 100644
index 0000000000..607977c0ab
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/fpu/s_llroundf.c
@@ -0,0 +1,72 @@
+/* Round float value to long long int.
+   Copyright (C) 1997-2016 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 <stdint.h>
+
+/* Round to the nearest integer, with values exactly on a 0.5 boundary
+   rounded away from zero, regardless of the current rounding mode.
+   If (long long)x, when x is out of range of a long long, clips at
+   LLONG_MAX or LLONG_MIN, then this implementation also clips.  */
+
+long long int
+__llroundf (float x)
+{
+  long long xr;
+  if (HAVE_PPC_FCTIDZ)
+    xr = (long long) x;
+  else
+    {
+      float ax = fabsf (x);
+      /* Avoid incorrect exceptions from libgcc conversions (as of GCC
+	 5): <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59412>.  */
+      if (ax < 0x1p31f)
+	xr = (long long int) (long int) x;
+      else if (!(ax < 0x1p55f))
+	xr = (long long int) (long int) (x * 0x1p-32f) << 32;
+      else
+	{
+	  uint32_t i0;
+	  GET_FLOAT_WORD (i0, x);
+	  int exponent = ((i0 >> 23) & 0xff) - 0x7f;
+	  unsigned long long int mant = (i0 & 0x7fffff) | 0x800000;
+	  mant <<= exponent - 23;
+	  xr = (long long int) ((i0 & 0x80000000) != 0 ? -mant : mant);
+	}
+    }
+  /* Avoid spurious "inexact" converting LLONG_MAX to float, and from
+     subtraction when the result is out of range, by returning early
+     for arguments large enough that no rounding is needed.  */
+  if (!(fabsf (x) < 0x1p23f))
+    return xr;
+  float xrf = (float) xr;
+
+  if (x >= 0.0)
+    {
+      if (x - xrf >= 0.5)
+	xr += (long long) ((unsigned long long) xr + 1) > 0;
+    }
+  else
+    {
+      if (xrf - x >= 0.5)
+	xr -= (long long) ((unsigned long long) xr - 1) < 0;
+    }
+  return xr;
+}
+weak_alias (__llroundf, llroundf)