1 //===-- floatdixf_test.c - Test __floatdixf -------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file tests __floatdixf for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "int_lib.h" 15 #include <stdio.h> 16 17 #if HAS_80_BIT_LONG_DOUBLE 18 // Returns: convert a to a long double, rounding toward even. 19 20 // Assumption: long double is a IEEE 80 bit floating point type padded to 128 bits 21 // di_int is a 64 bit integral type 22 23 // gggg gggg gggg gggg gggg gggg gggg gggg | gggg gggg gggg gggg seee eeee eeee eeee | 24 // 1mmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm 25 26 long double __floatdixf(di_int a); 27 28 int test__floatdixf(di_int a, long double expected) 29 { 30 long double x = __floatdixf(a); 31 if (x != expected) 32 printf("error in __floatdixf(%llX) = %LA, expected %LA\n", 33 a, x, expected); 34 return x != expected; 35 } 36 37 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0}; 38 char assumption_2[sizeof(di_int)*CHAR_BIT == 64] = {0}; 39 char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0}; 40 #endif 41 42 int main() 43 { 44 #if HAS_80_BIT_LONG_DOUBLE 45 if (test__floatdixf(0, 0.0)) 46 return 1; 47 48 if (test__floatdixf(1, 1.0)) 49 return 1; 50 if (test__floatdixf(2, 2.0)) 51 return 1; 52 if (test__floatdixf(20, 20.0)) 53 return 1; 54 if (test__floatdixf(-1, -1.0)) 55 return 1; 56 if (test__floatdixf(-2, -2.0)) 57 return 1; 58 if (test__floatdixf(-20, -20.0)) 59 return 1; 60 61 if (test__floatdixf(0x7FFFFF8000000000LL, 0x1.FFFFFEp+62)) 62 return 1; 63 if (test__floatdixf(0x7FFFFFFFFFFFF800LL, 0x1.FFFFFFFFFFFFEp+62)) 64 return 1; 65 if (test__floatdixf(0x7FFFFF0000000000LL, 0x1.FFFFFCp+62)) 66 return 1; 67 if (test__floatdixf(0x7FFFFFFFFFFFF000LL, 0x1.FFFFFFFFFFFFCp+62)) 68 return 1; 69 70 if (test__floatdixf(0x8000008000000000LL, -0x1.FFFFFEp+62)) 71 return 1; 72 if (test__floatdixf(0x8000000000000800LL, -0x1.FFFFFFFFFFFFEp+62)) 73 return 1; 74 if (test__floatdixf(0x8000010000000000LL, -0x1.FFFFFCp+62)) 75 return 1; 76 if (test__floatdixf(0x8000000000001000LL, -0x1.FFFFFFFFFFFFCp+62)) 77 return 1; 78 79 if (test__floatdixf(0x8000000000000000LL, -0x1.000000p+63)) 80 return 1; 81 if (test__floatdixf(0x8000000000000001LL, -0x1.FFFFFFFFFFFFFFFCp+62L)) 82 return 1; 83 84 if (test__floatdixf(0x0007FB72E8000000LL, 0x1.FEDCBAp+50)) 85 return 1; 86 87 if (test__floatdixf(0x0007FB72EA000000LL, 0x1.FEDCBA8p+50)) 88 return 1; 89 if (test__floatdixf(0x0007FB72EB000000LL, 0x1.FEDCBACp+50)) 90 return 1; 91 if (test__floatdixf(0x0007FB72EBFFFFFFLL, 0x1.FEDCBAFFFFFFCp+50)) 92 return 1; 93 if (test__floatdixf(0x0007FB72EC000000LL, 0x1.FEDCBBp+50)) 94 return 1; 95 if (test__floatdixf(0x0007FB72E8000001LL, 0x1.FEDCBA0000004p+50)) 96 return 1; 97 98 if (test__floatdixf(0x0007FB72E6000000LL, 0x1.FEDCB98p+50)) 99 return 1; 100 if (test__floatdixf(0x0007FB72E7000000LL, 0x1.FEDCB9Cp+50)) 101 return 1; 102 if (test__floatdixf(0x0007FB72E7FFFFFFLL, 0x1.FEDCB9FFFFFFCp+50)) 103 return 1; 104 if (test__floatdixf(0x0007FB72E4000001LL, 0x1.FEDCB90000004p+50)) 105 return 1; 106 if (test__floatdixf(0x0007FB72E4000000LL, 0x1.FEDCB9p+50)) 107 return 1; 108 109 if (test__floatdixf(0x023479FD0E092DC0LL, 0x1.1A3CFE870496Ep+57)) 110 return 1; 111 if (test__floatdixf(0x023479FD0E092DA1LL, 0x8.D1E7F43824B684p+54L)) 112 return 1; 113 if (test__floatdixf(0x023479FD0E092DB0LL, 0x8.D1E7f43824B6Cp+54L)) 114 return 1; 115 if (test__floatdixf(0x023479FD0E092DB8LL, 0x8.D1E7F43824B6Ep+54L)) 116 return 1; 117 if (test__floatdixf(0x023479FD0E092DB6LL, 0x8.D1E7F43824B6D8p+54L)) 118 return 1; 119 if (test__floatdixf(0x023479FD0E092DBFLL, 0x8.D1E7F43824B6FCp+54L)) 120 return 1; 121 if (test__floatdixf(0x023479FD0E092DC1LL, 0x8.D1E7F43824B704p+54L)) 122 return 1; 123 if (test__floatdixf(0x023479FD0E092DC7LL, 0x8.D1E7F43824B71Cp+54L)) 124 return 1; 125 if (test__floatdixf(0x023479FD0E092DC8LL, 0x8.D1E7F43824B72p+54L)) 126 return 1; 127 if (test__floatdixf(0x023479FD0E092DCFLL, 0x8.D1E7F43824B73Cp+54L)) 128 return 1; 129 if (test__floatdixf(0x023479FD0E092DD0LL, 0x8.D1E7F43824B74p+54L)) 130 return 1; 131 if (test__floatdixf(0x023479FD0E092DD1LL, 0x8.D1E7F43824B744p+54L)) 132 return 1; 133 if (test__floatdixf(0x023479FD0E092DD8LL, 0x8.D1E7F43824B76p+54L)) 134 return 1; 135 if (test__floatdixf(0x023479FD0E092DDFLL, 0x8.D1E7F43824B77Cp+54L)) 136 return 1; 137 if (test__floatdixf(0x023479FD0E092DE0LL, 0x1.1A3CFE870496Fp+57)) 138 return 1; 139 140 #endif 141 return 0; 142 } 143
