| Pirama Arumuga Nainar | a4cf3ee | 2015-05-20 13:03:23 -0700 | [diff] [blame] | 1 | //===--------------- truncsfhf2_test.c - Test __truncsfhf2 ----------------===// |
| 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 __truncsfhf2 for the compiler_rt library. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include <stdio.h> |
| 15 | |
| 16 | #include "fp_test.h" |
| 17 | |
| 18 | uint16_t __truncsfhf2(float a); |
| 19 | |
| 20 | int test__truncsfhf2(float a, uint16_t expected) |
| 21 | { |
| 22 | uint16_t x = __truncsfhf2(a); |
| 23 | int ret = compareResultH(x, expected); |
| 24 | |
| 25 | if (ret){ |
| 26 | printf("error in test__truncsfhf2(%f) = %#.4x, " |
| 27 | "expected %#.4x\n", a, x, fromRep16(expected)); |
| 28 | } |
| 29 | return ret; |
| 30 | } |
| 31 | |
| 32 | char assumption_1[sizeof(__fp16) * CHAR_BIT == 16] = {0}; |
| 33 | |
| 34 | int main() |
| 35 | { |
| 36 | // qNaN |
| 37 | if (test__truncsfhf2(makeQNaN32(), |
| 38 | UINT16_C(0x7e00))) |
| 39 | return 1; |
| 40 | // NaN |
| 41 | if (test__truncsfhf2(makeNaN32(UINT32_C(0x8000)), |
| 42 | UINT16_C(0x7e00))) |
| 43 | return 1; |
| 44 | // inf |
| 45 | if (test__truncsfhf2(makeInf32(), |
| 46 | UINT16_C(0x7c00))) |
| 47 | return 1; |
| 48 | if (test__truncsfhf2(-makeInf32(), |
| 49 | UINT16_C(0xfc00))) |
| 50 | return 1; |
| 51 | // zero |
| 52 | if (test__truncsfhf2(0.0f, UINT16_C(0x0))) |
| 53 | return 1; |
| 54 | if (test__truncsfhf2(-0.0f, UINT16_C(0x8000))) |
| 55 | return 1; |
| 56 | |
| 57 | if (test__truncsfhf2(3.1415926535f, |
| 58 | UINT16_C(0x4248))) |
| 59 | return 1; |
| 60 | if (test__truncsfhf2(-3.1415926535f, |
| 61 | UINT16_C(0xc248))) |
| 62 | return 1; |
| 63 | if (test__truncsfhf2(0x1.987124876876324p+100f, |
| 64 | UINT16_C(0x7c00))) |
| 65 | return 1; |
| 66 | if (test__truncsfhf2(0x1.987124876876324p+12f, |
| 67 | UINT16_C(0x6e62))) |
| 68 | return 1; |
| 69 | if (test__truncsfhf2(0x1.0p+0f, |
| 70 | UINT16_C(0x3c00))) |
| 71 | return 1; |
| 72 | if (test__truncsfhf2(0x1.0p-14f, |
| 73 | UINT16_C(0x0400))) |
| 74 | return 1; |
| 75 | // denormal |
| 76 | if (test__truncsfhf2(0x1.0p-20f, |
| 77 | UINT16_C(0x0010))) |
| 78 | return 1; |
| 79 | if (test__truncsfhf2(0x1.0p-24f, |
| 80 | UINT16_C(0x0001))) |
| 81 | return 1; |
| 82 | if (test__truncsfhf2(-0x1.0p-24f, |
| 83 | UINT16_C(0x8001))) |
| 84 | return 1; |
| 85 | if (test__truncsfhf2(0x1.5p-25f, |
| 86 | UINT16_C(0x0001))) |
| 87 | return 1; |
| 88 | // and back to zero |
| 89 | if (test__truncsfhf2(0x1.0p-25f, |
| 90 | UINT16_C(0x0000))) |
| 91 | return 1; |
| 92 | if (test__truncsfhf2(-0x1.0p-25f, |
| 93 | UINT16_C(0x8000))) |
| 94 | return 1; |
| 95 | // max (precise) |
| 96 | if (test__truncsfhf2(65504.0f, |
| 97 | UINT16_C(0x7bff))) |
| 98 | return 1; |
| 99 | // max (rounded) |
| 100 | if (test__truncsfhf2(65519.0f, |
| 101 | UINT16_C(0x7bff))) |
| 102 | return 1; |
| 103 | // max (to +inf) |
| 104 | if (test__truncsfhf2(65520.0f, |
| 105 | UINT16_C(0x7c00))) |
| 106 | return 1; |
| Pirama Arumuga Nainar | d5a4b89 | 2015-06-23 15:40:12 -0700 | [diff] [blame] | 107 | if (test__truncsfhf2(65536.0f, |
| 108 | UINT16_C(0x7c00))) |
| 109 | return 1; |
| Pirama Arumuga Nainar | a4cf3ee | 2015-05-20 13:03:23 -0700 | [diff] [blame] | 110 | if (test__truncsfhf2(-65520.0f, |
| 111 | UINT16_C(0xfc00))) |
| 112 | return 1; |
| 113 | return 0; |
| 114 | } |