floatuntidf_test.c revision 1.1.1.3
1//===-- floatuntidf.c - Test __floatuntidf --------------------------------===// 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 __floatuntidf for the compiler_rt library. 11// 12//===----------------------------------------------------------------------===// 13 14#include "int_lib.h" 15#include <float.h> 16#include <stdio.h> 17 18#ifdef CRT_HAS_128BIT 19 20// Returns: convert a to a double, rounding toward even. 21 22// Assumption: double is a IEEE 64 bit floating point type 23// tu_int is a 64 bit integral type 24 25// seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm 26 27COMPILER_RT_ABI double __floatuntidf(tu_int a); 28 29int test__floatuntidf(tu_int a, double expected) 30{ 31 double x = __floatuntidf(a); 32 if (x != expected) 33 { 34 utwords at; 35 at.all = a; 36 printf("error in __floatuntidf(0x%.16llX%.16llX) = %a, expected %a\n", 37 at.s.high, at.s.low, x, expected); 38 } 39 return x != expected; 40} 41 42char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0}; 43char assumption_2[sizeof(ti_int)*CHAR_BIT == 128] = {0}; 44char assumption_3[sizeof(double)*CHAR_BIT == 64] = {0}; 45 46#endif 47 48int main() 49{ 50#ifdef CRT_HAS_128BIT 51 if (test__floatuntidf(0, 0.0)) 52 return 1; 53 54 if (test__floatuntidf(1, 1.0)) 55 return 1; 56 if (test__floatuntidf(2, 2.0)) 57 return 1; 58 if (test__floatuntidf(20, 20.0)) 59 return 1; 60 61 if (test__floatuntidf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62)) 62 return 1; 63 if (test__floatuntidf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62)) 64 return 1; 65 if (test__floatuntidf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62)) 66 return 1; 67 if (test__floatuntidf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62)) 68 return 1; 69 70 if (test__floatuntidf(make_ti(0x8000008000000000LL, 0), 0x1.000001p+127)) 71 return 1; 72 if (test__floatuntidf(make_ti(0x8000000000000800LL, 0), 0x1.0000000000001p+127)) 73 return 1; 74 if (test__floatuntidf(make_ti(0x8000010000000000LL, 0), 0x1.000002p+127)) 75 return 1; 76 if (test__floatuntidf(make_ti(0x8000000000001000LL, 0), 0x1.0000000000002p+127)) 77 return 1; 78 79 if (test__floatuntidf(make_ti(0x8000000000000000LL, 0), 0x1.000000p+127)) 80 return 1; 81 if (test__floatuntidf(make_ti(0x8000000000000001LL, 0), 0x1.0000000000000002p+127)) 82 return 1; 83 84 if (test__floatuntidf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50)) 85 return 1; 86 87 if (test__floatuntidf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50)) 88 return 1; 89 if (test__floatuntidf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50)) 90 return 1; 91 if (test__floatuntidf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50)) 92 return 1; 93 if (test__floatuntidf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50)) 94 return 1; 95 if (test__floatuntidf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50)) 96 return 1; 97 98 if (test__floatuntidf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50)) 99 return 1; 100 if (test__floatuntidf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50)) 101 return 1; 102 if (test__floatuntidf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50)) 103 return 1; 104 if (test__floatuntidf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50)) 105 return 1; 106 if (test__floatuntidf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50)) 107 return 1; 108 109 if (test__floatuntidf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57)) 110 return 1; 111 if (test__floatuntidf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496Dp+57)) 112 return 1; 113 if (test__floatuntidf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496Ep+57)) 114 return 1; 115 if (test__floatuntidf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496Ep+57)) 116 return 1; 117 if (test__floatuntidf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496Ep+57)) 118 return 1; 119 if (test__floatuntidf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496Ep+57)) 120 return 1; 121 if (test__floatuntidf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496Ep+57)) 122 return 1; 123 if (test__floatuntidf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496Ep+57)) 124 return 1; 125 if (test__floatuntidf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496Ep+57)) 126 return 1; 127 if (test__floatuntidf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496Ep+57)) 128 return 1; 129 if (test__floatuntidf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496Ep+57)) 130 return 1; 131 if (test__floatuntidf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496Fp+57)) 132 return 1; 133 if (test__floatuntidf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496Fp+57)) 134 return 1; 135 if (test__floatuntidf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496Fp+57)) 136 return 1; 137 if (test__floatuntidf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57)) 138 return 1; 139 140 if (test__floatuntidf(make_ti(0x023479FD0E092DC0LL, 0), 0x1.1A3CFE870496Ep+121)) 141 return 1; 142 if (test__floatuntidf(make_ti(0x023479FD0E092DA1LL, 1), 0x1.1A3CFE870496Dp+121)) 143 return 1; 144 if (test__floatuntidf(make_ti(0x023479FD0E092DB0LL, 2), 0x1.1A3CFE870496Ep+121)) 145 return 1; 146 if (test__floatuntidf(make_ti(0x023479FD0E092DB8LL, 3), 0x1.1A3CFE870496Ep+121)) 147 return 1; 148 if (test__floatuntidf(make_ti(0x023479FD0E092DB6LL, 4), 0x1.1A3CFE870496Ep+121)) 149 return 1; 150 if (test__floatuntidf(make_ti(0x023479FD0E092DBFLL, 5), 0x1.1A3CFE870496Ep+121)) 151 return 1; 152 if (test__floatuntidf(make_ti(0x023479FD0E092DC1LL, 6), 0x1.1A3CFE870496Ep+121)) 153 return 1; 154 if (test__floatuntidf(make_ti(0x023479FD0E092DC7LL, 7), 0x1.1A3CFE870496Ep+121)) 155 return 1; 156 if (test__floatuntidf(make_ti(0x023479FD0E092DC8LL, 8), 0x1.1A3CFE870496Ep+121)) 157 return 1; 158 if (test__floatuntidf(make_ti(0x023479FD0E092DCFLL, 9), 0x1.1A3CFE870496Ep+121)) 159 return 1; 160 if (test__floatuntidf(make_ti(0x023479FD0E092DD0LL, 0), 0x1.1A3CFE870496Ep+121)) 161 return 1; 162 if (test__floatuntidf(make_ti(0x023479FD0E092DD1LL, 11), 0x1.1A3CFE870496Fp+121)) 163 return 1; 164 if (test__floatuntidf(make_ti(0x023479FD0E092DD8LL, 12), 0x1.1A3CFE870496Fp+121)) 165 return 1; 166 if (test__floatuntidf(make_ti(0x023479FD0E092DDFLL, 13), 0x1.1A3CFE870496Fp+121)) 167 return 1; 168 if (test__floatuntidf(make_ti(0x023479FD0E092DE0LL, 14), 0x1.1A3CFE870496Fp+121)) 169 return 1; 170#else 171 printf("skipped\n"); 172#endif 173 return 0; 174} 175