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1/* Software floating-point emulation: comparison.
2 Copyright (C) 1997-2019 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
23static long
24internal_equality (long al, long ah, long bl, long bh, long neq)
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
33 if ((A_e == _FP_EXPMAX_Q && !_FP_FRAC_ZEROP_2(A))
34 || (B_e == _FP_EXPMAX_Q && !_FP_FRAC_ZEROP_2(B)))
35 {
36 /* EQ and NE signal invalid operation only if either operand is SNaN. */
37 if (FP_ISSIGNAN_Q(A) || FP_ISSIGNAN_Q(B))
38 {
39 FP_SET_EXCEPTION(FP_EX_INVALID);
40 FP_HANDLE_EXCEPTIONS;
41 }
42 return -1;
43 }
44
45 r = (A_e == B_e
46 && _FP_FRAC_EQ_2 (A, B)
47 && (A_s == B_s || (!A_e && _FP_FRAC_ZEROP_2(A))));
48 r ^= neq;
49
50 return r;
51}
52
53long
54_OtsEqlX (long al, long ah, long bl, long bh)
55{
56 return internal_equality (al, ah, bl, bh, 0);
57}
58
59long
60_OtsNeqX (long al, long ah, long bl, long bh)
61{
62 return internal_equality (al, ah, bl, bh, 1);
63}
64

Warning: That file was not part of the compilation database. It may have many parsing errors.