|
0
|
1 /* Subroutines for long double support.
|
|
|
2 Copyright (C) 2000, 2002, 2004, 2005, 2006, 2009 Free Software Foundation, Inc.
|
|
|
3
|
|
|
4 This file is part of GCC.
|
|
|
5
|
|
|
6 GCC is free software; you can redistribute it and/or modify
|
|
|
7 it under the terms of the GNU General Public License as published by
|
|
|
8 the Free Software Foundation; either version 3, or (at your option)
|
|
|
9 any later version.
|
|
|
10
|
|
|
11 GCC is distributed in the hope that it will be useful,
|
|
|
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
14 GNU General Public License for more details.
|
|
|
15
|
|
|
16 Under Section 7 of GPL version 3, you are granted additional
|
|
|
17 permissions described in the GCC Runtime Library Exception, version
|
|
|
18 3.1, as published by the Free Software Foundation.
|
|
|
19
|
|
|
20 You should have received a copy of the GNU General Public License and
|
|
|
21 a copy of the GCC Runtime Library Exception along with this program;
|
|
|
22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
23 <http://www.gnu.org/licenses/>. */
|
|
|
24
|
|
|
25 /* HPUX TFmode compare requires a library call to _U_Qfcmp. It takes
|
|
|
26 a magic number as its third argument which indicates what to do.
|
|
|
27 The return value is an integer to be compared against zero. The
|
|
|
28 comparison conditions are the same as those listed in Table 8-12
|
|
|
29 of the PA-RISC 2.0 Architecture book for the fcmp instruction. */
|
|
|
30
|
|
|
31 /* Raise FP_INVALID on SNaN as a side effect. */
|
|
|
32 #define QCMP_INV 1
|
|
|
33
|
|
|
34 /* Comparison relations. */
|
|
|
35 #define QCMP_UNORD 2
|
|
|
36 #define QCMP_EQ 4
|
|
|
37 #define QCMP_LT 8
|
|
|
38 #define QCMP_GT 16
|
|
|
39
|
|
|
40 int _U_Qfcmp (long double a, long double b, int);
|
|
|
41 long _U_Qfcnvfxt_quad_to_sgl (long double);
|
|
|
42
|
|
|
43 int _U_Qfeq (long double, long double);
|
|
|
44 int _U_Qfne (long double, long double);
|
|
|
45 int _U_Qfgt (long double, long double);
|
|
|
46 int _U_Qfge (long double, long double);
|
|
|
47 int _U_Qflt (long double, long double);
|
|
|
48 int _U_Qfle (long double, long double);
|
|
|
49 int _U_Qfltgt (long double, long double);
|
|
|
50 int _U_Qfunle (long double, long double);
|
|
|
51 int _U_Qfunlt (long double, long double);
|
|
|
52 int _U_Qfunge (long double, long double);
|
|
|
53 int _U_Qfungt (long double, long double);
|
|
|
54 int _U_Qfuneq (long double, long double);
|
|
|
55 int _U_Qfunord (long double, long double);
|
|
|
56 int _U_Qford (long double, long double);
|
|
|
57
|
|
|
58 int _U_Qfcomp (long double, long double);
|
|
|
59
|
|
|
60 long double _U_Qfneg (long double);
|
|
|
61
|
|
|
62 #ifdef __LP64__
|
|
|
63 int __U_Qfcnvfxt_quad_to_sgl (long double);
|
|
|
64 #endif
|
|
|
65 unsigned int _U_Qfcnvfxt_quad_to_usgl(long double);
|
|
|
66 long double _U_Qfcnvxf_usgl_to_quad (unsigned int);
|
|
|
67 unsigned long long _U_Qfcnvfxt_quad_to_udbl(long double);
|
|
|
68 long double _U_Qfcnvxf_udbl_to_quad (unsigned long long);
|
|
|
69
|
|
|
70 int
|
|
|
71 _U_Qfeq (long double a, long double b)
|
|
|
72 {
|
|
|
73 return (_U_Qfcmp (a, b, QCMP_EQ) != 0);
|
|
|
74 }
|
|
|
75
|
|
|
76 int
|
|
|
77 _U_Qfne (long double a, long double b)
|
|
|
78 {
|
|
|
79 return (_U_Qfcmp (a, b, QCMP_EQ) == 0);
|
|
|
80 }
|
|
|
81
|
|
|
82 int
|
|
|
83 _U_Qfgt (long double a, long double b)
|
|
|
84 {
|
|
|
85 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_GT) != 0);
|
|
|
86 }
|
|
|
87
|
|
|
88 int
|
|
|
89 _U_Qfge (long double a, long double b)
|
|
|
90 {
|
|
|
91 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_GT) != 0);
|
|
|
92 }
|
|
|
93
|
|
|
94 int
|
|
|
95 _U_Qflt (long double a, long double b)
|
|
|
96 {
|
|
|
97 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_LT) != 0);
|
|
|
98 }
|
|
|
99
|
|
|
100 int
|
|
|
101 _U_Qfle (long double a, long double b)
|
|
|
102 {
|
|
|
103 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_LT) != 0);
|
|
|
104 }
|
|
|
105
|
|
|
106 int
|
|
|
107 _U_Qfltgt (long double a, long double b)
|
|
|
108 {
|
|
|
109 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_LT | QCMP_GT) != 0);
|
|
|
110 }
|
|
|
111
|
|
|
112 int
|
|
|
113 _U_Qfunle (long double a, long double b)
|
|
|
114 {
|
|
|
115 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ | QCMP_LT) != 0);
|
|
|
116 }
|
|
|
117
|
|
|
118 int
|
|
|
119 _U_Qfunlt (long double a, long double b)
|
|
|
120 {
|
|
|
121 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_LT) != 0);
|
|
|
122 }
|
|
|
123
|
|
|
124 int
|
|
|
125 _U_Qfunge (long double a, long double b)
|
|
|
126 {
|
|
|
127 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ | QCMP_GT) != 0);
|
|
|
128 }
|
|
|
129
|
|
|
130 int
|
|
|
131 _U_Qfungt (long double a, long double b)
|
|
|
132 {
|
|
|
133 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_GT) != 0);
|
|
|
134 }
|
|
|
135
|
|
|
136 int
|
|
|
137 _U_Qfuneq (long double a, long double b)
|
|
|
138 {
|
|
|
139 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD | QCMP_EQ) != 0);
|
|
|
140 }
|
|
|
141
|
|
|
142 int
|
|
|
143 _U_Qfunord (long double a, long double b)
|
|
|
144 {
|
|
|
145 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_UNORD) != 0);
|
|
|
146 }
|
|
|
147
|
|
|
148 int
|
|
|
149 _U_Qford (long double a, long double b)
|
|
|
150 {
|
|
|
151 return (_U_Qfcmp (a, b, QCMP_INV | QCMP_EQ | QCMP_LT | QCMP_GT) != 0);
|
|
|
152 }
|
|
|
153
|
|
|
154 int
|
|
|
155 _U_Qfcomp (long double a, long double b)
|
|
|
156 {
|
|
|
157 if (_U_Qfcmp (a, b, QCMP_EQ) == 0)
|
|
|
158 return 0;
|
|
|
159
|
|
|
160 return (_U_Qfcmp (a, b, QCMP_UNORD | QCMP_EQ | QCMP_GT) != 0 ? 1 : -1);
|
|
|
161 }
|
|
|
162
|
|
|
163
|
|
|
164 /* Negate long double A. */
|
|
|
165 long double
|
|
|
166 _U_Qfneg (long double a)
|
|
|
167 {
|
|
|
168 union
|
|
|
169 {
|
|
|
170 long double ld;
|
|
|
171 int i[4];
|
|
|
172 } u;
|
|
|
173
|
|
|
174 u.ld = a;
|
|
|
175 u.i[0] ^= 0x80000000;
|
|
|
176 return u.ld;
|
|
|
177 }
|
|
|
178
|
|
|
179 #ifdef __LP64__
|
|
|
180 /* This routine is only necessary for the PA64 port; for reasons unknown
|
|
|
181 _U_Qfcnvfxt_quad_to_sgl returns the integer in the high 32bits of the
|
|
|
182 return value. Ugh. */
|
|
|
183 int
|
|
|
184 __U_Qfcnvfxt_quad_to_sgl (long double a)
|
|
|
185 {
|
|
|
186 return _U_Qfcnvfxt_quad_to_sgl (a) >> 32;
|
|
|
187 }
|
|
|
188 #endif
|
|
|
189
|
|
|
190 /* HP only has signed conversion in the C library, so need to synthesize
|
|
|
191 unsigned versions. */
|
|
|
192 unsigned int
|
|
|
193 _U_Qfcnvfxt_quad_to_usgl (long double a)
|
|
|
194 {
|
|
|
195 extern long long _U_Qfcnvfxt_quad_to_dbl (long double a);
|
|
|
196 return (unsigned int) _U_Qfcnvfxt_quad_to_dbl (a);
|
|
|
197 }
|
|
|
198
|
|
|
199 long double
|
|
|
200 _U_Qfcnvxf_usgl_to_quad (unsigned int a)
|
|
|
201 {
|
|
|
202 extern long double _U_Qfcnvxf_dbl_to_quad (long long);
|
|
|
203 return _U_Qfcnvxf_dbl_to_quad ((long long) a);
|
|
|
204 }
|
|
|
205
|
|
|
206 typedef union {
|
|
|
207 unsigned long long u[2];
|
|
|
208 long double d[1];
|
|
|
209 } quad_type;
|
|
|
210
|
|
|
211 unsigned long long
|
|
|
212 _U_Qfcnvfxt_quad_to_udbl (long double a)
|
|
|
213 {
|
|
|
214 extern quad_type _U_Qfcnvfxt_quad_to_quad (long double a);
|
|
|
215 quad_type u;
|
|
|
216 u = _U_Qfcnvfxt_quad_to_quad(a);
|
|
|
217 return u.u[1];
|
|
|
218 }
|
|
|
219
|
|
|
220 long double
|
|
|
221 _U_Qfcnvxf_udbl_to_quad (unsigned long long a)
|
|
|
222 {
|
|
|
223 extern long double _U_Qfcnvxf_quad_to_quad (quad_type a);
|
|
|
224 quad_type u;
|
|
|
225 u.u[0] = 0;
|
|
|
226 u.u[1] = a;
|
|
|
227 return _U_Qfcnvxf_quad_to_quad (u);
|
|
|
228 }
|
