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tf-signs.c revision 1.1 
      1  1.1  mrg /* Copyright (C) 2008, 2009 Free Software Foundation, Inc.
      2  1.1  mrg 
      3  1.1  mrg This file is part of GCC.
      4  1.1  mrg 
      5  1.1  mrg GCC is free software; you can redistribute it and/or modify it under
      6  1.1  mrg the terms of the GNU General Public License as published by the Free
      7  1.1  mrg Software Foundation; either version 3, or (at your option) any later
      8  1.1  mrg version.
      9  1.1  mrg 
     10  1.1  mrg GCC is distributed in the hope that it will be useful, but WITHOUT ANY
     11  1.1  mrg WARRANTY; without even the implied warranty of MERCHANTABILITY or
     12  1.1  mrg FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     13  1.1  mrg for more details.
     14  1.1  mrg 
     15  1.1  mrg Under Section 7 of GPL version 3, you are granted additional
     16  1.1  mrg permissions described in the GCC Runtime Library Exception, version
     17  1.1  mrg 3.1, as published by the Free Software Foundation.
     18  1.1  mrg 
     19  1.1  mrg You should have received a copy of the GNU General Public License and
     20  1.1  mrg a copy of the GCC Runtime Library Exception along with this program;
     21  1.1  mrg see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     22  1.1  mrg <http://www.gnu.org/licenses/>.  */
     23  1.1  mrg 
     24  1.1  mrg union _FP_UNION_Q
     25  1.1  mrg {
     26  1.1  mrg    __float128 flt;
     27  1.1  mrg    struct
     28  1.1  mrg    {
     29  1.1  mrg       unsigned long frac1 : 64;
     30  1.1  mrg       unsigned long frac0 : 48;
     31  1.1  mrg       unsigned exp : 15;
     32  1.1  mrg       unsigned sign : 1;
     33  1.1  mrg    } bits __attribute__((packed));
     34  1.1  mrg };
     35  1.1  mrg 
     36  1.1  mrg __float128 __copysigntf3 (__float128, __float128);
     37  1.1  mrg __float128 __fabstf2 (__float128);
     38  1.1  mrg 
     39  1.1  mrg __float128
     40  1.1  mrg __copysigntf3 (__float128 a, __float128 b)
     41  1.1  mrg {
     42  1.1  mrg   union _FP_UNION_Q A, B;
     43  1.1  mrg 
     44  1.1  mrg   A.flt = a;
     45  1.1  mrg   B.flt = b;
     46  1.1  mrg   A.bits.sign = B.bits.sign;
     47  1.1  mrg 
     48  1.1  mrg   return A.flt;
     49  1.1  mrg }
     50  1.1  mrg 
     51  1.1  mrg __float128
     52  1.1  mrg __fabstf2 (__float128 a)
     53  1.1  mrg {
     54  1.1  mrg   union _FP_UNION_Q A;
     55  1.1  mrg 
     56  1.1  mrg   A.flt = a;
     57  1.1  mrg   A.bits.sign = 0;
     58  1.1  mrg 
     59  1.1  mrg   return A.flt;
     60  1.1  mrg }
     61