x86: Use one ldbl2mpn.c file for both i386 and x86_64

1 files changed, 0 insertions, 120 deletions

diff --git a/sysdeps/i386/ldbl2mpn.c b/sysdeps/i386/ldbl2mpn.c
deleted file mode 100644
index ec8464eef7..0000000000
--- a/sysdeps/i386/ldbl2mpn.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/* Copyright (C) 1995-2020 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
-   <https://www.gnu.org/licenses/>.  */
-
-#include "gmp.h"
-#include "gmp-impl.h"
-#include "longlong.h"
-#include <ieee754.h>
-#include <float.h>
-#include <stdlib.h>
-
-/* Convert a `long double' in IEEE854 standard double-precision format to a
-   multi-precision integer representing the significand scaled up by its
-   number of bits (64 for long double) and an integral power of two
-   (MPN frexpl). */
-
-mp_size_t
-__mpn_extract_long_double (mp_ptr res_ptr, mp_size_t size,
-			   int *expt, int *is_neg,
-			   long double value)
-{
-  union ieee854_long_double u;
-  u.d = value;
-
-  *is_neg = u.ieee.negative;
-  *expt = (int) u.ieee.exponent - IEEE854_LONG_DOUBLE_BIAS;
-
-#if BITS_PER_MP_LIMB == 32
-  res_ptr[0] = u.ieee.mantissa1; /* Low-order 32 bits of fraction.  */
-  res_ptr[1] = u.ieee.mantissa0; /* High-order 32 bits.  */
-  #define N 2
-#elif BITS_PER_MP_LIMB == 64
-  /* Hopefully the compiler will combine the two bitfield extracts
-     and this composition into just the original quadword extract.  */
-  res_ptr[0] = ((mp_limb_t) u.ieee.mantissa0 << 32) | u.ieee.mantissa1;
-  #define N 1
-#else
-  #error "mp_limb size " BITS_PER_MP_LIMB "not accounted for"
-#endif
-
-  if (u.ieee.exponent == 0)
-    {
-      /* A biased exponent of zero is a special case.
-	 Either it is a zero or it is a denormal number.  */
-      if (res_ptr[0] == 0 && res_ptr[N - 1] == 0) /* Assumes N<=2.  */
-	/* It's zero.  */
-	*expt = 0;
-      else
-	{
-	  /* It is a denormal number, meaning it has no implicit leading
-	     one bit, and its exponent is in fact the format minimum.  */
-	  int cnt;
-
-	  /* One problem with Intel's 80-bit format is that the explicit
-	     leading one in the normalized representation has to be zero
-	     for denormalized number.  If it is one, the number is according
-	     to Intel's specification an invalid number.  We make the
-	     representation unique by explicitly clearing this bit.  */
-	  res_ptr[N - 1] &= ~((mp_limb_t) 1 << ((LDBL_MANT_DIG - 1) % BITS_PER_MP_LIMB));
-
-	  if (res_ptr[N - 1] != 0)
-	    {
-	      count_leading_zeros (cnt, res_ptr[N - 1]);
-	      if (cnt != 0)
-		{
-#if N == 2
-		  res_ptr[N - 1] = res_ptr[N - 1] << cnt
-				   | (res_ptr[0] >> (BITS_PER_MP_LIMB - cnt));
-		  res_ptr[0] <<= cnt;
-#else
-		  res_ptr[N - 1] <<= cnt;
-#endif
-		}
-	      *expt = LDBL_MIN_EXP - 1 - cnt;
-	    }
-	  else if (res_ptr[0] != 0)
-	    {
-	      count_leading_zeros (cnt, res_ptr[0]);
-	      res_ptr[N - 1] = res_ptr[0] << cnt;
-	      res_ptr[0] = 0;
-	      *expt = LDBL_MIN_EXP - 1 - BITS_PER_MP_LIMB - cnt;
-	    }
-	  else
-	    {
-	      /* This is the special case of the pseudo denormal number
-		 with only the implicit leading bit set.  The value is
-		 in fact a normal number and so we have to treat this
-		 case differently.  */
-#if N == 2
-	      res_ptr[N - 1] = 0x80000000ul;
-#else
-	      res_ptr[0] = 0x8000000000000000ul;
-#endif
-	      *expt = LDBL_MIN_EXP - 1;
-	    }
-	}
-    }
-  else if (u.ieee.exponent < 0x7fff
-#if N == 2
-	   && res_ptr[0] == 0
-#endif
-	   && res_ptr[N - 1] == 0)
-    /* Pseudo zero.  */
-    *expt = 0;
-
-  return N;
-}