sys/external/bsd/compiler_rt/dist/test/Unit/floatuntixf_test.c

   1 //===-- floatuntixf.c - Test __floatuntixf --------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file tests __floatuntixf for the compiler_rt library.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #if __x86_64
  15
  16 #include "int_lib.h"
  17 #include <float.h>
  18 #include <stdio.h>
  19
  20 // Returns: convert a to a long double, rounding toward even.
  21
  22 // Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits
  23 //             tu_int is a 128 bit integral type
  24
  25 // gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee |
  26 // 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm
  27
  28 long double __floatuntixf(tu_int a);
  29
  30 int test__floatuntixf(tu_int a, long double expected)
  31 {
  32     long double x = __floatuntixf(a);
  33     if (x != expected)
  34     {
  35         utwords at;
  36         at.all = a;
  37         printf("error in __floatuntixf(0x%.16llX%.16llX) = %LA, expected %LA\n",
  38                at.s.high, at.s.low, x, expected);
  39     }
  40     return x != expected;
  41 }
  42
  43 char assumption_1[sizeof(tu_int) == 2*sizeof(du_int)] = {0};
  44 char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0};
  45 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0};
  46
  47 #endif
  48
  49 int main()
  50 {
  51 #if __x86_64
  52     if (test__floatuntixf(0, 0.0))
  53         return 1;
  54
  55     if (test__floatuntixf(1, 1.0))
  56         return 1;
  57     if (test__floatuntixf(2, 2.0))
  58         return 1;
  59     if (test__floatuntixf(20, 20.0))
  60         return 1;
  61
  62     if (test__floatuntixf(0x7FFFFF8000000000ULL, 0x1.FFFFFEp+62))
  63         return 1;
  64     if (test__floatuntixf(0x7FFFFFFFFFFFF800ULL, 0x1.FFFFFFFFFFFFEp+62))
  65         return 1;
  66     if (test__floatuntixf(0x7FFFFF0000000000ULL, 0x1.FFFFFCp+62))
  67         return 1;
  68     if (test__floatuntixf(0x7FFFFFFFFFFFF000ULL, 0x1.FFFFFFFFFFFFCp+62))
  69         return 1;
  70     if (test__floatuntixf(0x7FFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFEp+59L))
  71         return 1;
  72     if (test__floatuntixf(0xFFFFFFFFFFFFFFFEULL, 0xF.FFFFFFFFFFFFFFEp+60L))
  73         return 1;
  74     if (test__floatuntixf(0xFFFFFFFFFFFFFFFFULL, 0xF.FFFFFFFFFFFFFFFp+60L))
  75         return 1;
  76
  77     if (test__floatuntixf(0x8000008000000000ULL, 0x8.000008p+60))
  78         return 1;
  79     if (test__floatuntixf(0x8000000000000800ULL, 0x8.0000000000008p+60))
  80         return 1;
  81     if (test__floatuntixf(0x8000010000000000ULL, 0x8.00001p+60))
  82         return 1;
  83     if (test__floatuntixf(0x8000000000001000ULL, 0x8.000000000001p+60))
  84         return 1;
  85
  86     if (test__floatuntixf(0x8000000000000000ULL, 0x8p+60))
  87         return 1;
  88     if (test__floatuntixf(0x8000000000000001ULL, 0x8.000000000000001p+60L))
  89         return 1;
  90
  91     if (test__floatuntixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50))
  92         return 1;
  93
  94     if (test__floatuntixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50))
  95         return 1;
  96     if (test__floatuntixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50))
  97         return 1;
  98     if (test__floatuntixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50))
  99         return 1;
 100     if (test__floatuntixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50))
 101         return 1;
 102     if (test__floatuntixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50))
 103         return 1;
 104
 105     if (test__floatuntixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50))
 106         return 1;
 107     if (test__floatuntixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50))
 108         return 1;
 109     if (test__floatuntixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50))
 110         return 1;
 111     if (test__floatuntixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50))
 112         return 1;
 113     if (test__floatuntixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50))
 114         return 1;
 115
 116     if (test__floatuntixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57))
 117         return 1;
 118     if (test__floatuntixf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496D08p+57L))
 119         return 1;
 120     if (test__floatuntixf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496D8p+57L))
 121         return 1;
 122     if (test__floatuntixf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496DCp+57L))
 123         return 1;
 124     if (test__floatuntixf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496DBp+57L))
 125         return 1;
 126     if (test__floatuntixf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496DF8p+57L))
 127         return 1;
 128     if (test__floatuntixf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496E08p+57L))
 129         return 1;
 130     if (test__floatuntixf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496E38p+57L))
 131         return 1;
 132     if (test__floatuntixf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496E4p+57L))
 133         return 1;
 134     if (test__floatuntixf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496E78p+57L))
 135         return 1;
 136     if (test__floatuntixf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496E8p+57L))
 137         return 1;
 138     if (test__floatuntixf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496E88p+57L))
 139         return 1;
 140     if (test__floatuntixf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496ECp+57L))
 141         return 1;
 142     if (test__floatuntixf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496EF8p+57L))
 143         return 1;
 144     if (test__floatuntixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57))
 145         return 1;
 146
 147     if (test__floatuntixf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121L))
 148         return 1;
 149     if (test__floatuntixf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496D08p+121L))
 150         return 1;
 151     if (test__floatuntixf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496D8p+121L))
 152         return 1;
 153     if (test__floatuntixf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496DCp+121L))
 154         return 1;
 155     if (test__floatuntixf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496DBp+121L))
 156         return 1;
 157     if (test__floatuntixf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496DF8p+121L))
 158         return 1;
 159     if (test__floatuntixf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496E08p+121L))
 160         return 1;
 161     if (test__floatuntixf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496E38p+121L))
 162         return 1;
 163     if (test__floatuntixf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496E4p+121L))
 164         return 1;
 165     if (test__floatuntixf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496E78p+121L))
 166         return 1;
 167     if (test__floatuntixf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496E8p+121L))
 168         return 1;
 169     if (test__floatuntixf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496E88p+121L))
 170         return 1;
 171     if (test__floatuntixf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496ECp+121L))
 172         return 1;
 173     if (test__floatuntixf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496EF8p+121L))
 174         return 1;
 175     if (test__floatuntixf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121L))
 176         return 1;
 177
 178     if (test__floatuntixf(make_ti(0, 0xFFFFFFFFFFFFFFFFLL), 0x1.FFFFFFFFFFFFFFFEp+63L))
 179         return 1;
 180
 181     if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0x0000000000000000LL),
 182                           0x1.FFFFFFFFFFFFFFFEp+127L))
 183         return 1;
 184     if (test__floatuntixf(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL),
 185                           0x1.0000000000000000p+128L))
 186         return 1;
 187
 188     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456100000000001LL),
 189                         0x1.2345678901234562p+108L))
 190         return 1;
 191     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456200000000000LL),
 192                         0x1.2345678901234562p+108L))
 193         return 1;
 194     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34562FFFFFFFFFFFLL),
 195                         0x1.2345678901234562p+108L))
 196         return 1;
 197     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456300000000000LL),
 198                         0x1.2345678901234564p+108L))
 199         return 1;
 200     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456400000000000LL),
 201                         0x1.2345678901234564p+108L))
 202         return 1;
 203     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34564FFFFFFFFFFFLL),
 204                         0x1.2345678901234564p+108L))
 205         return 1;
 206     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000000LL),
 207                         0x1.2345678901234564p+108L))
 208         return 1;
 209     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x3456500000000001LL),
 210                         0x1.2345678901234566p+108L))
 211         return 1;
 212     if (test__floatuntixf(make_ti(0x0000123456789012LL, 0x34566FFFFFFFFFFFLL),
 213                         0x1.2345678901234566p+108L))
 214         return 1;
 215 #else
 216     printf("skipped\n");
 217 #endif
 218    return 0;
 219 }