| Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 1 | //===-- fixunstfti_test.c - Test __fixunstfti -----------------------------===// |
| 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 __fixunstfti for the compiler_rt library. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include <stdio.h> |
| 15 | |
| 16 | #if __LDBL_MANT_DIG__ == 113 |
| 17 | |
| 18 | #include "fp_test.h" |
| 19 | #include "int_lib.h" |
| 20 | |
| 21 | // Returns: convert a to a unsigned long long, rounding toward zero. |
| 22 | // Negative values all become zero. |
| 23 | |
| 24 | // Assumption: long double is a 128 bit floating point type |
| 25 | // tu_int is a 128 bit integral type |
| 26 | // value in long double is representable in tu_int or is negative |
| 27 | // (no range checking performed) |
| 28 | |
| 29 | COMPILER_RT_ABI tu_int __fixunstfti(long double a); |
| 30 | |
| 31 | int test__fixunstfti(long double a, tu_int expected) |
| 32 | { |
| 33 | tu_int x = __fixunstfti(a); |
| 34 | if (x != expected) |
| 35 | { |
| 36 | twords xt; |
| 37 | xt.all = x; |
| 38 | |
| 39 | twords expectedt; |
| 40 | expectedt.all = expected; |
| 41 | |
| 42 | printf("error in __fixunstfti(%.20Lf) = 0x%.16llX%.16llX, " |
| 43 | "expected 0x%.16llX%.16llX\n", |
| 44 | a, xt.s.high, xt.s.low, expectedt.s.high, expectedt.s.low); |
| 45 | } |
| 46 | return x != expected; |
| 47 | } |
| 48 | |
| 49 | char assumption_1[sizeof(tu_int) == 4*sizeof(su_int)] = {0}; |
| 50 | char assumption_2[sizeof(tu_int)*CHAR_BIT == 128] = {0}; |
| 51 | char assumption_3[sizeof(long double)*CHAR_BIT == 128] = {0}; |
| 52 | |
| 53 | #endif |
| 54 | |
| 55 | int main() |
| 56 | { |
| 57 | #if __LDBL_MANT_DIG__ == 113 |
| 58 | if (test__fixunstfti(makeInf128(), make_ti(0xffffffffffffffffLL, |
| 59 | 0xffffffffffffffffLL))) |
| 60 | return 1; |
| 61 | |
| 62 | if (test__fixunstfti(0.0, 0)) |
| 63 | return 1; |
| 64 | |
| 65 | if (test__fixunstfti(0.5, 0)) |
| 66 | return 1; |
| 67 | if (test__fixunstfti(0.99, 0)) |
| 68 | return 1; |
| 69 | if (test__fixunstfti(1.0, 1)) |
| 70 | return 1; |
| 71 | if (test__fixunstfti(1.5, 1)) |
| 72 | return 1; |
| 73 | if (test__fixunstfti(1.99, 1)) |
| 74 | return 1; |
| 75 | if (test__fixunstfti(2.0, 2)) |
| 76 | return 1; |
| 77 | if (test__fixunstfti(2.01, 2)) |
| 78 | return 1; |
| 79 | if (test__fixunstfti(-0.01, 0)) |
| 80 | return 1; |
| 81 | if (test__fixunstfti(-0.99, 0)) |
| 82 | return 1; |
| 83 | |
| 84 | if (test__fixunstfti(0x1.p+128, make_ti(0xffffffffffffffffLL, |
| 85 | 0xffffffffffffffffLL))) |
| 86 | return 1; |
| 87 | |
| 88 | if (test__fixunstfti(0x1.FFFFFEp+126, make_ti(0x7fffff8000000000LL, 0x0))) |
| 89 | return 1; |
| 90 | if (test__fixunstfti(0x1.FFFFFEp+127, make_ti(0xffffff0000000000LL, 0x0))) |
| 91 | return 1; |
| 92 | if (test__fixunstfti(0x1.FFFFFEp+128, make_ti(0xffffffffffffffffLL, |
| 93 | 0xffffffffffffffffLL))) |
| 94 | return 1; |
| 95 | if (test__fixunstfti(0x1.FFFFFEp+129, make_ti(0xffffffffffffffffLL, |
| 96 | 0xffffffffffffffffLL))) |
| 97 | return 1; |
| 98 | |
| 99 | #else |
| 100 | printf("skipped\n"); |
| 101 | #endif |
| 102 | return 0; |
| 103 | } |