Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 1 | //===-- floatdixf_test.c - Test __floatdixf -------------------------------===// |
| 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 __floatdixf for the compiler_rt library. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 14 | #include "int_lib.h" |
| 15 | #include <stdio.h> |
| 16 | |
Nick Kledzik | 3ea8287 | 2009-09-11 19:09:36 +0000 | [diff] [blame] | 17 | #if HAS_80_BIT_LONG_DOUBLE |
Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 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}; |
Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 40 | #endif |
| 41 | |
| 42 | int main() |
| 43 | { |
Nick Kledzik | 3ea8287 | 2009-09-11 19:09:36 +0000 | [diff] [blame] | 44 | #if HAS_80_BIT_LONG_DOUBLE |
Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 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 | } |