[gcc] GCC 4.5.0=>4.5.1

gcc/mpfr/tan.c

Index: gcc/mpfr/tan.c
diff --git a/gcc/mpfr/tan.c b/gcc/mpfr/tan.c
deleted file mode 100644
index a0207ff48fd875378f74539de0a201d15695c49f..0000000000000000000000000000000000000000
--- a/gcc/mpfr/tan.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/* mpfr_tan -- tangent of a floating-point number
-
-Copyright 2001, 2002, 2003, 2004, 2005, 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. */
-
-#define MPFR_NEED_LONGLONG_H
-#include "mpfr-impl.h"
-
-/* computes tan(x) = sign(x)*sqrt(1/cos(x)^2-1) */
-int
-mpfr_tan (mpfr_ptr y, mpfr_srcptr x, mp_rnd_t rnd_mode)
-{
-  mp_prec_t precy, m;
-  int inexact;
-  mpfr_t s, c;
-  MPFR_ZIV_DECL (loop);
-  MPFR_SAVE_EXPO_DECL (expo);
-  MPFR_GROUP_DECL (group);
-
-  MPFR_LOG_FUNC (("x[%#R]=%R rnd=%d", x, x, rnd_mode),
-                  ("y[%#R]=%R inexact=%d", y, y, inexact));
-
-  if (MPFR_UNLIKELY(MPFR_IS_SINGULAR(x)))
-    {
-      if (MPFR_IS_NAN(x) || MPFR_IS_INF(x))
-        {
-          MPFR_SET_NAN(y);
-          MPFR_RET_NAN;
-        }
-      else /* x is zero */
-        {
-          MPFR_ASSERTD(MPFR_IS_ZERO(x));
-          MPFR_SET_ZERO(y);
-          MPFR_SET_SAME_SIGN(y, x);
-          MPFR_RET(0);
-        }
-    }
-
-  /* tan(x) = x + x^3/3 + ... so the error is < 2^(3*EXP(x)-1) */
-  MPFR_FAST_COMPUTE_IF_SMALL_INPUT (y, x, -2 * MPFR_GET_EXP (x), 1, 1,
-                                    rnd_mode, {});
-
-  MPFR_SAVE_EXPO_MARK (expo);
-
-  /* Compute initial precision */
-  precy = MPFR_PREC (y);
-  m = precy + MPFR_INT_CEIL_LOG2 (precy) + 13;
-  MPFR_ASSERTD (m >= 2); /* needed for the error analysis in algorithms.tex */
-
-  MPFR_GROUP_INIT_2 (group, m, s, c);
-  MPFR_ZIV_INIT (loop, m);
-  for (;;)
-    {
-      /* The only way to get an overflow is to get ~ Pi/2
-         But the result will be ~ 2^Prec(y). */
-      mpfr_sin_cos (s, c, x, GMP_RNDN); /* err <= 1/2 ulp on s and c */
-      mpfr_div (c, s, c, GMP_RNDN);     /* err <= 4 ulps */
-      MPFR_ASSERTD (!MPFR_IS_SINGULAR (c));
-      if (MPFR_LIKELY (MPFR_CAN_ROUND (c, m - 2, precy, rnd_mode)))
-        break;
-      MPFR_ZIV_NEXT (loop, m);
-      MPFR_GROUP_REPREC_2 (group, m, s, c);
-    }
-  MPFR_ZIV_FREE (loop);
-  inexact = mpfr_set (y, c, rnd_mode);
-  MPFR_GROUP_CLEAR (group);
-
-  MPFR_SAVE_EXPO_FREE (expo);
-  return mpfr_check_range (y, inexact, rnd_mode);
-}