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Unified Diff: gcc/mpfr/uceil_log2.c

Issue 3050029: [gcc] GCC 4.5.0=>4.5.1 (Closed) Base URL: ssh://git@gitrw.chromium.org:9222/nacl-toolchain.git
Patch Set: Created 10 years, 5 months ago
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Index: gcc/mpfr/uceil_log2.c
diff --git a/gcc/mpfr/uceil_log2.c b/gcc/mpfr/uceil_log2.c
deleted file mode 100644
index 4dcee7f3d3b4021d42eb080259676cbaf7743997..0000000000000000000000000000000000000000
--- a/gcc/mpfr/uceil_log2.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/* __gmpfr_ceil_log2 - returns ceil(log(d)/log(2))
-
-Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-Contributed by the Arenaire and Cacao projects, INRIA.
-
-This file is part of the GNU MPFR Library.
-
-The GNU MPFR 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 MPFR 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 MPFR Library; see the file COPYING.LIB. If not, write to
-the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
-MA 02110-1301, USA. */
-
-#include "mpfr-impl.h"
-
-/* returns ceil(log(d)/log(2)) if d > 0,
- -1023 if d = +0,
- and floor(log(-d)/log(2))+1 if d < 0*/
-long
-__gmpfr_ceil_log2 (double d)
-{
- long exp;
-#if _GMP_IEEE_FLOATS
- union ieee_double_extract x;
-
- x.d = d;
- exp = x.s.exp - 1023;
- x.s.exp = 1023; /* value for 1 <= d < 2 */
- if (x.d != 1.0) /* d: not a power of two? */
- exp++;
- return exp;
-#else
- double m;
-
- if (d < 0.0)
- return __gmpfr_floor_log2(-d)+1;
- else if (d == 0.0)
- return -1023;
- else if (d >= 1.0)
- {
- exp = 0;
- for( m= 1.0 ; m < d ; m *=2.0 )
- exp++;
- }
- else
- {
- exp = 1;
- for( m= 1.0 ; m >= d ; m *= (1.0/2.0) )
- exp--;
- }
-#endif
- return exp;
-}
-
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