sysdeps/alpha/soft-fp/ots_cmpe.c

   1 /* Software floating-point emulation: comparison.
   2    Copyright (C) 1997-2015 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Richard Henderson (rth@cygnus.com) and
   5                   Jakub Jelinek (jj@ultra.linux.cz).
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library.  If not, see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #include "local-soft-fp.h"
  22
  23 static long
  24 internal_compare (long al, long ah, long bl, long bh)
  25 {
  26   FP_DECL_EX;
  27   FP_DECL_Q(A); FP_DECL_Q(B);
  28   long r;
  29
  30   AXP_UNPACK_RAW_Q(A, a);
  31   AXP_UNPACK_RAW_Q(B, b);
  32   FP_CMP_Q (r, A, B, 2, 2);
  33
  34   FP_HANDLE_EXCEPTIONS;
  35
  36   return r;
  37 }
  38
  39 long
  40 _OtsLssX (long al, long ah, long bl, long bh)
  41 {
  42   long r = internal_compare (al, ah, bl, bh);
  43   if (r == 2)
  44     return -1;
  45   else
  46     return r < 0;
  47 }
  48
  49 long
  50 _OtsLeqX (long al, long ah, long bl, long bh)
  51 {
  52   long r = internal_compare (al, ah, bl, bh);
  53   if (r == 2)
  54     return -1;
  55   else
  56     return r <= 0;
  57 }
  58
  59 long
  60 _OtsGtrX (long al, long ah, long bl, long bh)
  61 {
  62   long r = internal_compare (al, ah, bl, bh);
  63   if (r == 2)
  64     return -1;
  65   else
  66     return r > 0;
  67 }
  68
  69 long
  70 _OtsGeqX (long al, long ah, long bl, long bh)
  71 {
  72   long r = internal_compare (al, ah, bl, bh);
  73   if (r == 2)
  74     return -1;
  75   else
  76     return r >= 0;
  77 }