floatundidf_test.c revision 1.1.1.1
1//===-- floatundidf_test.c - Test __floatundidf ---------------------------===// 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 __floatundidf for the compiler_rt library. 11// 12//===----------------------------------------------------------------------===// 13 14#include "int_lib.h" 15#include <float.h> 16#include <stdio.h> 17 18// Returns: convert a to a double, rounding toward even. 19 20// Assumption: double is a IEEE 64 bit floating point type 21// du_int is a 64 bit integral type 22 23// seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm 24 25double __floatundidf(du_int a); 26 27int test__floatundidf(di_int a, double expected) 28{ 29 double x = __floatundidf(a); 30 if (x != expected) 31 printf("error in __floatundidf(%llX) = %a, expected %a\n", 32 a, x, expected); 33 return x != expected; 34} 35 36char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0}; 37char assumption_2[sizeof(di_int)*CHAR_BIT == 64] = {0}; 38char assumption_3[sizeof(double)*CHAR_BIT == 64] = {0}; 39 40int main() 41{ 42 if (test__floatundidf(0, 0.0)) 43 return 1; 44 45 if (test__floatundidf(1, 1.0)) 46 return 1; 47 if (test__floatundidf(2, 2.0)) 48 return 1; 49 if (test__floatundidf(20, 20.0)) 50 return 1; 51 52 if (test__floatundidf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62)) 53 return 1; 54 if (test__floatundidf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62)) 55 return 1; 56 if (test__floatundidf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62)) 57 return 1; 58 if (test__floatundidf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62)) 59 return 1; 60 61 if (test__floatundidf(0x8000008000000000LL, 0x1.000001p+63)) 62 return 1; 63 if (test__floatundidf(0x8000000000000800LL, 0x1.0000000000001p+63)) 64 return 1; 65 if (test__floatundidf(0x8000010000000000LL, 0x1.000002p+63)) 66 return 1; 67 if (test__floatundidf(0x8000000000001000LL, 0x1.0000000000002p+63)) 68 return 1; 69 70 if (test__floatundidf(0x8000000000000000LL, 0x1p+63)) 71 return 1; 72 if (test__floatundidf(0x8000000000000001LL, 0x1p+63)) 73 return 1; 74 75 if (test__floatundidf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50)) 76 return 1; 77 78 if (test__floatundidf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50)) 79 return 1; 80 if (test__floatundidf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50)) 81 return 1; 82 if (test__floatundidf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50)) 83 return 1; 84 if (test__floatundidf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50)) 85 return 1; 86 if (test__floatundidf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50)) 87 return 1; 88 89 if (test__floatundidf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50)) 90 return 1; 91 if (test__floatundidf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50)) 92 return 1; 93 if (test__floatundidf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50)) 94 return 1; 95 if (test__floatundidf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50)) 96 return 1; 97 if (test__floatundidf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50)) 98 return 1; 99 100 if (test__floatundidf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57)) 101 return 1; 102 if (test__floatundidf(0x023479FD0E092DA1LL, 0x1.1A3CFE870496Dp+57)) 103 return 1; 104 if (test__floatundidf(0x023479FD0E092DB0LL, 0x1.1A3CFE870496Ep+57)) 105 return 1; 106 if (test__floatundidf(0x023479FD0E092DB8LL, 0x1.1A3CFE870496Ep+57)) 107 return 1; 108 if (test__floatundidf(0x023479FD0E092DB6LL, 0x1.1A3CFE870496Ep+57)) 109 return 1; 110 if (test__floatundidf(0x023479FD0E092DBFLL, 0x1.1A3CFE870496Ep+57)) 111 return 1; 112 if (test__floatundidf(0x023479FD0E092DC1LL, 0x1.1A3CFE870496Ep+57)) 113 return 1; 114 if (test__floatundidf(0x023479FD0E092DC7LL, 0x1.1A3CFE870496Ep+57)) 115 return 1; 116 if (test__floatundidf(0x023479FD0E092DC8LL, 0x1.1A3CFE870496Ep+57)) 117 return 1; 118 if (test__floatundidf(0x023479FD0E092DCFLL, 0x1.1A3CFE870496Ep+57)) 119 return 1; 120 if (test__floatundidf(0x023479FD0E092DD0LL, 0x1.1A3CFE870496Ep+57)) 121 return 1; 122 if (test__floatundidf(0x023479FD0E092DD1LL, 0x1.1A3CFE870496Fp+57)) 123 return 1; 124 if (test__floatundidf(0x023479FD0E092DD8LL, 0x1.1A3CFE870496Fp+57)) 125 return 1; 126 if (test__floatundidf(0x023479FD0E092DDFLL, 0x1.1A3CFE870496Fp+57)) 127 return 1; 128 if (test__floatundidf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57)) 129 return 1; 130 131 return 0; 132} 133