1 // RUN: %clang_builtins %s %librt -o %t && %run %t
2 // XFAIL: aarch64
3 // test fails for aarch64 (see pr32260)
4 
5 // UNSUPPORTED: mips
6 
7 //===-- floatuntixf.c - Test __floatuntixf --------------------------------===//
8 //
9 //                     The LLVM Compiler Infrastructure
10 //
11 // This file is dual licensed under the MIT and the University of Illinois Open
12 // Source Licenses. See LICENSE.TXT for details.
13 //
14 //===----------------------------------------------------------------------===//
15 //
16 // This file tests __floatuntixf for the compiler_rt library.
17 //
18 //===----------------------------------------------------------------------===//
19 
20 #include "int_lib.h"
21 #include <float.h>
22 #include <stdio.h>
23 
24 #ifdef CRT_HAS_128BIT
25 
26 // Returns: convert a to a long double, rounding toward even.
27 
28 // Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits
29 //             tu_int is a 128 bit integral type
30 
31 // gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
32 // 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
33 
34 COMPILER_RT_ABI long double __floatuntixf(tu_int a);
35 
36 int test__floatuntixf(tu_int a, long double expected)
37 {
38     long double x = __floatuntixf(a);
39     if (x != expected)
40     {
41         utwords at;
42         at.all = a;
43         printf("error in __floatuntixf(0x%.16llX%.16llX) = %LA, expected %LA\n",
44                at.s.high, at.s.low, x, expected);
45     }
46     return x != expected;
47 }
48 
49 char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0};
50 char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
51 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
52 
53 #endif
54 
55 int main()
56 {
57 #ifdef CRT_HAS_128BIT
58     if (test__floatuntixf(0, 0.0))
59         return 1;
60 
61     if (test__floatuntixf(1, 1.0))
62         return 1;
63     if (test__floatuntixf(2, 2.0))
64         return 1;
65     if (test__floatuntixf(20, 20.0))
66         return 1;
67 
68     if (test__floatuntixf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62))
69         return 1;
70     if (test__floatuntixf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62))
71         return 1;
72     if (test__floatuntixf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62))
73         return 1;
74     if (test__floatuntixf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62))
75         return 1;
76     if (test__floatuntixf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L))
77         return 1;
78     if (test__floatuntixf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L))
79         return 1;
80     if (test__floatuntixf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L))
81         return 1;
82 
83     if (test__floatuntixf(0x8000008000000000ULL, 0x8.000008p+60))
84         return 1;
85     if (test__floatuntixf(0x8000000000000800ULL, 0x8.0000000000008p+60))
86         return 1;
87     if (test__floatuntixf(0x8000010000000000ULL, 0x8.00001p+60))
88         return 1;
89     if (test__floatuntixf(0x8000000000001000ULL, 0x8.000000000001p+60))
90         return 1;
91 
92     if (test__floatuntixf(0x8000000000000000ULL, 0x8p+60))
93         return 1;
94     if (test__floatuntixf(0x8000000000000001ULL, 0x8.000000000000001p+60L))
95         return 1;
96 
97     if (test__floatuntixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
98         return 1;
99 
100     if (test__floatuntixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
101         return 1;
102     if (test__floatuntixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
103         return 1;
104     if (test__floatuntixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
105         return 1;
106     if (test__floatuntixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
107         return 1;
108     if (test__floatuntixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
109         return 1;
110 
111     if (test__floatuntixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
112         return 1;
113     if (test__floatuntixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
114         return 1;
115     if (test__floatuntixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
116         return 1;
117     if (test__floatuntixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
118         return 1;
119     if (test__floatuntixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
120         return 1;
121 
122     if (test__floatuntixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
123         return 1;
124     if (test__floatuntixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L))
125         return 1;
126     if (test__floatuntixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L))
127         return 1;
128     if (test__floatuntixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L))
129         return 1;
130     if (test__floatuntixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L))
131         return 1;
132     if (test__floatuntixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L))
133         return 1;
134     if (test__floatuntixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L))
135         return 1;
136     if (test__floatuntixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L))
137         return 1;
138     if (test__floatuntixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L))
139         return 1;
140     if (test__floatuntixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L))
141         return 1;
142     if (test__floatuntixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L))
143         return 1;
144     if (test__floatuntixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L))
145         return 1;
146     if (test__floatuntixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L))
147         return 1;
148     if (test__floatuntixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L))
149         return 1;
150     if (test__floatuntixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
151         return 1;
152 
153     if (test__floatuntixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L))
154         return 1;
155     if (test__floatuntixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L))
156         return 1;
157     if (test__floatuntixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L))
158         return 1;
159     if (test__floatuntixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L))
160         return 1;
161     if (test__floatuntixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L))
162         return 1;
163     if (test__floatuntixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L))
164         return 1;
165     if (test__floatuntixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L))
166         return 1;
167     if (test__floatuntixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L))
168         return 1;
169     if (test__floatuntixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L))
170         return 1;
171     if (test__floatuntixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L))
172         return 1;
173     if (test__floatuntixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L))
174         return 1;
175     if (test__floatuntixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L))
176         return 1;
177     if (test__floatuntixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L))
178         return 1;
179     if (test__floatuntixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L))
180         return 1;
181     if (test__floatuntixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L))
182         return 1;
183 
184     if (test__floatuntixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L))
185         return 1;
186 
187     if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL),
188                           0x1.FFFFFFFFFFFFFFFEp+127L))
189         return 1;
190     if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
191                           0x1.0000000000000000p+128L))
192         return 1;
193 
194     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL),
195                         0x1.2345678901234562p+108L))
196         return 1;
197     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL),
198                         0x1.2345678901234562p+108L))
199         return 1;
200     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL),
201                         0x1.2345678901234562p+108L))
202         return 1;
203     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL),
204                         0x1.2345678901234564p+108L))
205         return 1;
206     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL),
207                         0x1.2345678901234564p+108L))
208         return 1;
209     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL),
210                         0x1.2345678901234564p+108L))
211         return 1;
212     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL),
213                         0x1.2345678901234564p+108L))
214         return 1;
215     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL),
216                         0x1.2345678901234566p+108L))
217         return 1;
218     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL),
219                         0x1.2345678901234566p+108L))
220         return 1;
221 #else
222     printf("skipped\n");
223 #endif
224    return 0;
225 }
226