| Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 1 | //===-- floatundidf_test.c - Test __floatundidf ---------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| Howard Hinnant | 9ad441f | 2010-11-16 22:13:33 +0000 | [diff] [blame] | 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
| Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 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 | |
| 25 | double __floatundidf(du_int a); |
| 26 | |
| 27 | int 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 | |
| 36 | char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0}; |
| 37 | char assumption_2[sizeof(di_int)*CHAR_BIT == 64] = {0}; |
| 38 | char assumption_3[sizeof(double)*CHAR_BIT == 64] = {0}; |
| 39 | |
| 40 | int 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 | } |