[gcc] GCC 4.5.0=>4.5.1

gcc/mpfr/sub.c

Index: gcc/mpfr/sub.c
diff --git a/gcc/mpfr/sub.c b/gcc/mpfr/sub.c
deleted file mode 100644
index b1454ec17f243705e21e05f307c3f080875bb2ff..0000000000000000000000000000000000000000
--- a/gcc/mpfr/sub.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/* mpfr_sub -- subtract two floating-point numbers
-
-Copyright 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"
-
-int
-mpfr_sub (mpfr_ptr a, mpfr_srcptr b, mpfr_srcptr c, mp_rnd_t rnd_mode)
-{
-  MPFR_LOG_FUNC (("b[%#R]=%R c[%#R]=%R rnd=%d", b, b, c, c, rnd_mode),
-                 ("a[%#R]=%R", a, a));
-
-  if (MPFR_ARE_SINGULAR (b,c))
-    {
-      if (MPFR_IS_NAN (b) || MPFR_IS_NAN (c))
-        {
-          MPFR_SET_NAN (a);
-          MPFR_RET_NAN;
-        }
-      else if (MPFR_IS_INF (b))
-        {
-          if (!MPFR_IS_INF (c) || MPFR_SIGN (b) != MPFR_SIGN(c))
-            {
-              MPFR_SET_INF (a);
-              MPFR_SET_SAME_SIGN (a, b);
-              MPFR_RET (0); /* exact */
-            }
-          else
-            {
-              MPFR_SET_NAN (a); /* Inf - Inf */
-              MPFR_RET_NAN;
-            }
-        }
-      else if (MPFR_IS_INF (c))
-        {
-          MPFR_SET_INF (a);
-          MPFR_SET_OPPOSITE_SIGN (a, c);
-          MPFR_RET (0); /* exact */
-        }
-      else if (MPFR_IS_ZERO (b))
-        {
-          if (MPFR_IS_ZERO (c))
-            {
-              int sign = rnd_mode != GMP_RNDD
-                ? ((MPFR_IS_NEG(b) && MPFR_IS_POS(c)) ? -1 : 1)
-                : ((MPFR_IS_POS(b) && MPFR_IS_NEG(c)) ? 1 : -1);
-              MPFR_SET_SIGN (a, sign);
-              MPFR_SET_ZERO (a);
-              MPFR_RET(0); /* 0 - 0 is exact */
-            }
-          else
-            return mpfr_neg (a, c, rnd_mode);
-        }
-      else
-        {
-          MPFR_ASSERTD (MPFR_IS_ZERO (c));
-          return mpfr_set (a, b, rnd_mode);
-        }
-    }
-  MPFR_CLEAR_FLAGS (a);
-  MPFR_ASSERTD (MPFR_IS_PURE_FP (b) && MPFR_IS_PURE_FP (c));
-
-  if (MPFR_LIKELY (MPFR_SIGN (b) == MPFR_SIGN (c)))
-    { /* signs are equal, it's a real subtraction */
-      if (MPFR_LIKELY (MPFR_PREC (a) == MPFR_PREC (b)
-                       && MPFR_PREC (b) == MPFR_PREC (c)))
-        return mpfr_sub1sp (a, b, c, rnd_mode);
-      else
-        return mpfr_sub1 (a, b, c, rnd_mode);
-    }
-  else
-    { /* signs differ, it's an addition */
-      if (MPFR_GET_EXP (b) < MPFR_GET_EXP (c))
-         { /* exchange rounding modes towards +/- infinity */
-          int inexact;
-          rnd_mode = MPFR_INVERT_RND (rnd_mode);
-          if (MPFR_LIKELY (MPFR_PREC (a) == MPFR_PREC (b)
-                           && MPFR_PREC (b) == MPFR_PREC (c)))
-            inexact = mpfr_add1sp (a, c, b, rnd_mode);
-          else
-            inexact = mpfr_add1 (a, c, b, rnd_mode);
-          MPFR_CHANGE_SIGN (a);
-          return -inexact;
-        }
-      else
-        {
-          if (MPFR_LIKELY (MPFR_PREC (a) == MPFR_PREC (b)
-                           && MPFR_PREC (b) == MPFR_PREC (c)))
-            return mpfr_add1sp (a, b, c, rnd_mode);
-          else
-            return mpfr_add1 (a, b, c, rnd_mode);
-        }
-    }
-}