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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/m68k/fpu/s_llrintl.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/m68k/fpu/s_llrintl.c')
-rw-r--r--sysdeps/m68k/fpu/s_llrintl.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/sysdeps/m68k/fpu/s_llrintl.c b/sysdeps/m68k/fpu/s_llrintl.c
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+/* Round argument to nearest integral value according to current rounding
+   direction.
+   Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <math.h>
+#include "math_private.h"
+#include "mathimpl.h"
+
+long long int
+__llrintl (long double x)
+{
+  int32_t e, s;
+  u_int32_t h, l;
+  long long int result;
+
+  x = __m81_u(__rintl) (x);
+
+  GET_LDOUBLE_WORDS (e, h, l, x);
+
+  s = e;
+  e = (e & 0x7fff) - 0x3fff;
+  if (e < 0)
+    return 0;
+
+  if (e < 63)
+    {
+      if (e > 31)
+	{
+	  l >>= 63 - e;
+	  l |= h << (e - 31);
+	  h >>= 63 - e;
+	  result = ((long long int) h << 32) | l;
+	}
+      else
+	result = h >> (31 - e);
+      if (s & 0x8000)
+	result = -result;
+    }
+  else
+    /* The number is too large or not finite.  The standard leaves it
+       undefined what to return when the number is too large to fit in a
+       `long long int'.  */
+    result = -1LL;
+
+  return result;
+}
+
+weak_alias (__llrintl, llrintl)